CN106566172A - Preparation method of elastic damping SBS material - Google Patents

Abstract

The invention discloses a preparation method of an elastic shock-absorbing SBS material, comprising: step 1, reacting calcium lactate, sodium lauryl sulfate, water, glucose and sodium carbonate, centrifuging, washing and drying to obtain a first powder; Step 2, adding yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate to the first powder, mixing, and sintering to obtain the second powder; Step 3, adding the second powder to the second powder Add ethylene glycol, water, linoleic acid, sodium dodecylbenzenesulfonate, styrene, potassium sulfate, react, filter, and grind to obtain the third powder; step 4, mix SBS, the third powder, polystyrene , ultra-high molecular weight polyethylene, carbon black, terpene resin, lanthanum oxide, cerium oxide, zirconia, polyether ether ketone resin, oxidized polyethylene wax, macadamia nut shell powder, metallocene polyethylene, bamboo fiber, mixed evenly, mixed The elastic and shock-absorbing SBS material can be obtained by refining. The SBS material of the invention has the advantages of high strength and good elasticity.

Description

Preparation method of elastic shock-absorbing SBS material

technical field

The invention belongs to the field of polymer materials, and in particular relates to a preparation method of an elastic shock-absorbing SBS material.

Background technique

Styrene-butadiene-styrene block copolymer (SBS) is a tri-block copolymer of styrene and butadiene as monomers, which has the characteristics of plastic and rubber, and is called "third-generation synthetic rubber". Similar to styrene-butadiene rubber, SBS can be in contact with water, weak acid, alkali, etc. It has excellent tensile strength, large surface friction coefficient, good low-temperature performance, and good processing performance. It has become the most consumed thermoplastic elastomer at present. SBS composite materials can be used as elastic shock-absorbing materials, but their strength and elastic properties are not up to the requirements of use. In the industry, inorganic reinforcing phases are often filled to improve their performance, but the surface of the inorganic filling phase is hydrophilic and oleophobic. Large energy and easy agglomeration between particles make it difficult to uniformly disperse in the organic matrix and the binding force with the matrix is weak, resulting in poor strength of the material and unsatisfactory elastic properties.

Contents of the invention

The purpose of the present invention is to provide a preparation method of elastic shock-absorbing SBS material, wherein the inorganic filler can be uniformly dispersed in the organic matrix SBS, and has a strong binding force with the SBS, which greatly improves the strength and elasticity of the SBS composite material.

The object of the present invention is to provide a kind of preparation method of elastic shock-absorbing SBS material, comprises the following steps:

Step 1. Add calcium lactate and sodium lauryl sulfate into water, stir for 1-2 hours at a temperature of 40-60°C and a stirring rate of 600-1000r/min, then add glucose and sodium carbonate, and then 100-140°C, stirring rate 200-500r/min, stirring for 8-12h, cooling, and centrifugation to obtain the precipitate; the precipitate was successively washed with ethanol aqueous solution with gradually decreasing volume fraction, then washed with distilled water, dried, and ground , to obtain the first powder; in step 1, the mass ratio of calcium lactate, water, sodium lauryl sulfate, glucose, and sodium carbonate is 1:5～10:0.1～0.2:0.1～0.5:3～5;

Step 2: Add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate to the first powder, mix and stir evenly, place in a heating furnace for sintering in sequence, and then grind to obtain the first powder Two powders; the mass ratio of the first powder, yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate in step 2 is 8:0.1～0.5:0.1～0.3:0.05～0.1: 0.2～0.5:0.1～0.2;

Step 3: Add ethylene glycol, water, and linoleic acid to the second powder, stir for 2-3 hours at a temperature of 40-60°C and a stirring rate of 300-400r/min, and then add dodecylbenzenesulfonic acid Sodium, stir for 0.5-1h under nitrogen atmosphere, then add styrene, heat to 60-80°C, add potassium sulfate dropwise, stir at a stirring rate of 600-800r/min for 10-15h, filter, under the pressure of tetrafluoroethylene gas 0.1-0.2MPa, drying at 35-50°C for 4-6 hours, grinding to obtain the third powder, for later use; in step 3, the second powder, ethylene glycol, water, linoleic acid, dodecylbenzenesulfonic acid The mass ratio of sodium, styrene and potassium sulfate is 5:1～2:8～15:1.5～2.5:0.1～0.5:2～3:2.5～4.5;

Step 4, the parts by weight are 50-80 parts of SBS, 5-15 parts of the third powder, 10-20 parts of polystyrene, 5-10 parts of ultra-high molecular weight polyethylene, 1-2 parts of carbon black, 1 to 2 parts of terpene resin, 0.1 to 0.5 parts of lanthanum oxide, 0.1 to 0.2 parts of cerium oxide, 0.1 to 0.5 parts of zirconia, 0.1 to 0.5 parts of polyether ether ketone resin, 0.1 to 0.2 parts of oxidized polymer Ethylene wax, 1 to 2 parts of macadamia nut shell powder, 0.1 to 0.5 parts of metallocene polyethylene, and 0.2 to 0.6 parts of bamboo fiber are mixed evenly, extruded and granulated by a twin-screw extruder, and then formed by hot pressing After machine forming, the elastic shock-absorbing SBS material is obtained.

Preferably, in the preparation method of the elastic shock-absorbing SBS material, the twin-screw extruder in step 4 includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 140-150°C, and the temperature in the second temperature interval is The temperature is 150-160°C, the temperature in the third temperature range is 160-170°C, the temperature in the fourth temperature range is 170-180°C, the temperature in the fifth temperature range is 170-180°C, and the screw speed is 150-250r /min.

Preferably, in the preparation method of the elastic shock-absorbing SBS material, in step 4, the molding temperature of the thermocompression molding machine is 150-180° C., and the rotation speed is 180-230 r/min.

Preferably, in the preparation method of the elastic shock-absorbing SBS material, in step 1, the precipitates are washed successively with ethanol aqueous solutions with volume fractions of 75%-90%, 65%-75%, and 55%-65%.

Preferably, in the preparation method of the elastic shock-absorbing SBS material, the sintering in step 2 includes four stages, which are as follows:

In the first stage, the temperature is raised from room temperature to 100°C at a heating rate of 5°C/h, then from 100°C to 150°C at a heating rate of 10°C/h, and finally from 150°C to 200°C at a heating rate of 6°C /h, keep at 200℃ for 2~4h;

In the second stage, the temperature is raised from 200°C to 400°C at a heating rate of 10°C/h;

In the third stage, the temperature is raised from 400°C to 600°C at a heating rate of 15°C/h, then from 600°C to 400°C at a cooling rate of 8°C/h, and finally kept at 400°C for 1 to 2 hours;

The fourth stage is cooling from 400°C to room temperature with a cooling rate of 8°C/h.

Preferably, in the preparation method of the elastic shock-absorbing SBS material, the nitrogen pressure in Step 3 is 0.1-0.5Mpa.

The present invention at least includes the following beneficial effects:

1. The present invention adds calcium lactate and sodium lauryl sulfate to water, then adds glucose and sodium carbonate, wherein calcium carbonate can be generated between sodium carbonate and calcium lactate, and the reaction rate is adjusted by glucose to prevent the reaction rate from being too fast ; Then add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate, and sinter. In the sintering process, polyethylene glycol and sodium polyacrylate decompose to promote calcium carbonate to form a porous structure , increase the elasticity of calcium carbonate; hydroxypropyl methylcellulose improves the dispersion of various materials during the sintering process and prevents agglomeration; yttrium nitrate and neodymium oxide are rare earth elements, which can inhibit the growth of calcium carbonate grains , generate fine calcium carbonate grains, increase the grain boundary strength at the same time, promote the grains to overlap each other, and form whiskers, thereby improving the overall toughness and strength of the material.

2. Mix and react the second powder with ethylene glycol, water, and linoleic acid, then add sodium dodecylbenzenesulfonate, styrene, and potassium sulfate to continue the reaction; linoleic acid is an unsaturated acid containing double bonds, Through the reaction, an active double bond is first formed on the surface of the second compound, and then a layer of SBS monomer material styrene is coated, so that the second compound coated with styrene can reduce agglomeration, and is compatible with the matrix SBS The bonding force is better, which greatly improves the performance of the material.

3. SBS, third powder, polystyrene, ultra-high molecular weight polyethylene, carbon black, terpene resin, lanthanum oxide, cerium oxide, zirconia, polyetheretherketone resin, oxidized polyethylene wax, macadamia nut shell powder , metallocene polyethylene, and bamboo fiber are mixed to produce elastic and shock-absorbing SBS materials; among them, ultra-high molecular weight polyethylene has the performance of impact resistance and wear resistance, which can improve the wear resistance of sole materials, and also has a high elastic modulus It can greatly improve the elasticity of the material; the self-lubricating properties of carbon black and polyetheretherketone resin improve the wear resistance of the material and increase the service life; the oxidized polyethylene wax has both lubricating effect and good dispersing effect, making the third The powder is more uniformly distributed in the SBS matrix; the addition of lanthanum oxide, cerium oxide, and zirconia can improve the strength of the material, among which lanthanum oxide and cerium oxide are used as rare earth oxides, and SBS material molecules can slide on the surface of rare earth oxides when worn, The stress concentration of the material is avoided, thereby improving the wear resistance of the material. At the same time, the rare earth oxide itself also bears a part of the load, reducing the wear of the material; the macadamia nut shell powder is obtained by crushing the macadamia nut shell, which has great strength and can be Greatly improve the strength and wear resistance of the material, and macadamia nut shell powder also has a certain degree of elasticity, which can improve the toughness of the material; metallocene polyethylene has excellent tensile properties, which can greatly improve the elasticity of the material; bamboo fiber has strength High, high rigidity and good elasticity can improve the strength and toughness of the material. The synergistic effect of the above-mentioned components and materials greatly improves the elasticity, strength and toughness of the elastic shock-absorbing SBS material.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

Example 1

A preparation method of elastic shock-absorbing SBS material, comprising the following steps:

Step 1. Add calcium lactate and sodium lauryl sulfate to water, stir for 1 hour at a temperature of 40°C and a stirring rate of 600r/min, then add glucose and sodium carbonate, and then add water at a temperature of 100°C and a stirring rate of 600r/min. at 200r/min, stirred for 8h, cooled, and centrifuged to obtain a precipitate; the precipitate was successively washed with an aqueous ethanol solution with a gradually decreasing volume fraction, then washed with distilled water, dried, and ground to obtain the first powder; in step 1, calcium lactate, The mass ratio of water, sodium lauryl sulfate, glucose, and sodium carbonate is 1:5:0.1:0.1:3;

Step 2: Add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate to the first powder, mix and stir evenly, place in a heating furnace for sintering in sequence, and then grind to obtain the first powder Two powders; the mass ratio of the first powder, yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate in step 2 is 8:0.1:0.1:0.05:0.2:0.1;

Step 3: Add ethylene glycol, water, and linoleic acid to the second powder, stir for 2 hours at a temperature of 40°C and a stirring rate of 300r/min, then add sodium dodecylbenzenesulfonate, and place under a nitrogen atmosphere After stirring for 0.5h, add styrene, heat to 60°C, add potassium sulfate dropwise, stir at a stirring rate of 600r/min for 10h, filter, dry under tetrafluoroethylene gas pressure of 0.1MPa and temperature of 35°C for 4h, grind, Obtain the 3rd powder, standby; The mass ratio of second powder, ethylene glycol, water, linoleic acid, sodium dodecylbenzene sulfonate, styrene, potassium sulfate in step 3 is 5:1:8:1.5:0.1 :2:2.5;

Step 4, be the SBS of 50 parts by weight, the 3rd powder of 5 parts, the polystyrene of 10 parts, the ultrahigh molecular weight polyethylene of 5 parts, 1 part of carbon black, 1 part of terpene resin, 0.1 part of oxidation Lanthanum, 0.1 part of cerium oxide, 0.1 part of zirconia, 0.1 part of polyetheretherketone resin, 0.1 part of oxidized polyethylene wax, 1 part of macadamia nut shell powder, 0.1 part of metallocene polyethylene, 0.2 part of The bamboo fiber is evenly mixed, extruded and granulated by a twin-screw extruder, and then shaped by a hot-press molding machine to obtain an elastic shock-absorbing SBS material.

In the fourth step, the twin-screw extruder includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 140°C, the temperature in the second temperature interval is 150°C, and the temperature in the third temperature interval is 160°C . The temperature in the fourth temperature range is 170° C., the temperature in the fifth temperature range is 170° C., and the screw speed is 150 r/min.

In the step four, the molding temperature of the thermocompression molding machine is 150° C., and the rotation speed is 180 r/min.

In the first step, the precipitate is successively washed with aqueous ethanol solutions with volume fractions of 75%, 65%, and 55%.

In the second step, sintering includes four stages, which are as follows:

In the first stage, the temperature is raised from room temperature to 100°C at a heating rate of 5°C/h, then from 100°C to 150°C at a heating rate of 10°C/h, and finally from 150°C to 200°C at a heating rate of 6°C /h, keep at 200°C for 2h;

In the second stage, the temperature is raised from 200°C to 400°C at a heating rate of 10°C/h;

In the third stage, the temperature is raised from 400°C to 600°C at a heating rate of 15°C/h, then from 600°C to 400°C at a cooling rate of 8°C/h, and finally kept at 400°C for 1 hour;

The fourth stage is cooling from 400°C to room temperature with a cooling rate of 8°C/h. Calcining the first powder in four stages can increase the nucleation rate of the mixture, and prevent the growth rate of crystal nuclei from becoming too large, so that the final mixture particles are uniform in size, denser, and better in crystallinity.

In the third step, the pressure of nitrogen is 0.1-0.5Mpa.

Example 2

A preparation method of elastic shock-absorbing SBS material, comprising the following steps:

Step 1. Add calcium lactate and sodium lauryl sulfate to water, stir for 1.5 hours at a temperature of 50°C and a stirring rate of 800r/min, then add glucose and sodium carbonate, and stir at a temperature of 120°C The speed is 350r/min, stirred for 10h, cooled, and centrifuged to obtain the precipitate; the precipitate is washed successively with ethanol aqueous solution with gradually decreasing volume fraction, then washed with distilled water, dried, and ground to obtain the first powder; in step 1, calcium lactate , water, sodium lauryl sulfate, glucose, and sodium carbonate have a mass ratio of 1:7:0.15:0.3:4;

Step 2: Add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate to the first powder, mix and stir evenly, place in a heating furnace for sintering in sequence, and then grind to obtain the first powder Two powders; wherein, in step 2, the mass ratio of the first powder, yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate is 8:0.3:0.2:0.07:0.3:0.15;

Step 3: Add ethylene glycol, water, and linoleic acid to the second powder, stir for 2.5 hours at a temperature of 50°C and a stirring rate of 350r/min, then add sodium dodecylbenzenesulfonate, and stir in a nitrogen atmosphere After stirring at low temperature for 0.7h, add styrene, heat to 70°C, add potassium sulfate dropwise, stir at a stirring rate of 700r/min for 12h, filter, dry at 0.15MPa tetrafluoroethylene gas pressure and 42°C for 5h, grind , obtain the 3rd powder, standby; The mass ratio 5:1.5:10:2 of second powder, ethylene glycol, water, linoleic acid, sodium dodecylbenzenesulfonate, styrene, potassium sulfate in step 3: 0.3:2.5:3.5;

Step 4, be the SBS of 65 parts by weight, the 3rd powder of 10 parts, the polystyrene of 15 parts, the ultrahigh molecular weight polyethylene of 8 parts, 1.5 parts of carbon black, 1.5 parts of terpene resin, 0.3 part of oxidation Lanthanum, 0.15 parts of cerium oxide, 0.3 parts of zirconia, 0.3 parts of polyether ether ketone resin, 0.15 parts of oxidized polyethylene wax, 1.5 parts of macadamia nut shell powder, 0.3 parts of metallocene polyethylene, 0.4 parts of The bamboo fiber is evenly mixed, extruded and granulated by a twin-screw extruder, and then shaped by a hot-press molding machine to obtain an elastic shock-absorbing SBS material.

In the step four, the twin-screw extruder includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 145°C, the temperature in the second temperature interval is 155°C, and the temperature in the third temperature interval is 165°C . The temperature in the fourth temperature range is 175° C., the temperature in the fifth temperature range is 175° C., and the screw speed is 200 r/min.

In the step four, the molding temperature of the thermocompression molding machine is 160° C., and the rotation speed is 200 r/min.

In the first step, the precipitate is successively washed with ethanol aqueous solution with a volume fraction of 80%, 70%, and 60%.

In the second step, sintering includes four stages, which are as follows:

In the first stage, the temperature is raised from room temperature to 100°C at a heating rate of 5°C/h, then from 100°C to 150°C at a heating rate of 10°C/h, and finally from 150°C to 200°C at a heating rate of 6°C /h, keep at 200°C for 3h;

In the second stage, the temperature is raised from 200°C to 400°C at a heating rate of 10°C/h;

In the third stage, the temperature is raised from 400°C to 600°C at a heating rate of 15°C/h, then from 600°C to 400°C at a cooling rate of 8°C/h, and finally kept at 400°C for 1.5 hours;

The fourth stage is cooling from 400°C to room temperature with a cooling rate of 8°C/h.

In the third step, the pressure of nitrogen is 0.3Mpa.

Example 3

A preparation method of elastic shock-absorbing SBS material, comprising the following steps:

Step 1. Add calcium lactate and sodium lauryl sulfate into water, stir for 2 hours at a temperature of 60°C and a stirring rate of 1000r/min, then add glucose and sodium carbonate, and then add water at a temperature of 140°C and a stirring rate of 1000r/min. 500r/min, stirred for 12h, cooled, and centrifuged to obtain a precipitate; the precipitate was washed successively with an aqueous ethanol solution with a gradually decreasing volume fraction, then washed with distilled water, dried, and ground to obtain the first powder; the calcium lactate, water , the mass ratio of sodium lauryl sulfate, glucose, sodium carbonate is 1:10:0.2:0.5:5;

Step 2: Add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate to the first powder, mix and stir evenly, place in a heating furnace for sintering in sequence, and then grind to obtain the first powder Two powders; wherein, the mass ratio of the first powder, yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate in step 2 is: 0.5:0.3:0.1:0.5:0.2;

Step 3: Add ethylene glycol, water, and linoleic acid to the second powder, stir for 3 hours at a temperature of 60°C and a stirring rate of 400r/min, then add sodium dodecylbenzene sulfonate, and stir under a nitrogen atmosphere After stirring for 1 hour, add styrene, heat to 80°C, add potassium sulfate dropwise, stir for 15 hours at a stirring rate of 800r/min, filter, dry for 6 hours under tetrafluoroethylene gas pressure of 0.2MPa and temperature of 50°C, and grind to obtain The 3rd powder, standby; The mass ratio 5:2:15:2.5:0.5 of second powder, ethylene glycol, water, linoleic acid, sodium dodecylbenzenesulfonate, styrene, potassium sulfate in step 3: 3:4.5;

Step 4, be the SBS of 80 parts by weight, the 3rd powder of 15 parts, the polystyrene of 20 parts, the ultrahigh molecular weight polyethylene of 10 parts, 2 parts of carbon black, 2 parts of terpene resins, 0.5 part of oxidation Lanthanum, 0.2 parts of cerium oxide, 0.5 parts of zirconia, 0.5 parts of polyether ether ketone resin, 0.2 parts of oxidized polyethylene wax, 2 parts of macadamia nut shell powder, 0.5 parts of metallocene polyethylene, 0.6 parts of The bamboo fiber is evenly mixed, extruded and granulated by a twin-screw extruder, and then shaped by a hot-press molding machine to obtain an elastic shock-absorbing SBS material.

In the fourth step, the twin-screw extruder includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 150°C, the temperature in the second temperature interval is 160°C, and the temperature in the third temperature interval is 170°C , The temperature in the fourth temperature range is 180°C, the temperature in the fifth temperature range is 180°C, and the screw speed is 250r/min.

In the step four, the molding temperature of the thermocompression molding machine is 180° C., and the rotation speed is 230 r/min.

In the first step, the precipitate is successively washed with ethanol aqueous solution with a volume fraction of 90%, 75%, and 65%.

In the second step, sintering includes four stages, which are as follows:

In the first stage, the temperature is raised from room temperature to 100°C at a heating rate of 5°C/h, then from 100°C to 150°C at a heating rate of 10°C/h, and finally from 150°C to 200°C at a heating rate of 6°C /h, keep at 200°C for 4h;

In the second stage, the temperature is raised from 200°C to 400°C at a heating rate of 10°C/h;

In the third stage, the temperature is raised from 400°C to 600°C at a heating rate of 15°C/h, then from 600°C to 400°C at a cooling rate of 8°C/h, and finally kept at 400°C for 2 hours;

The fourth stage is cooling from 400°C to room temperature with a cooling rate of 8°C/h.

In the third step, the pressure of nitrogen is 0.5Mpa.

Comparative example 1

A preparation method of SBS material, comprising: 50 parts by weight of SBS, 5 parts of the third powder, 10 parts of polystyrene, 5 parts of ultra-high molecular weight polyethylene, 1 part of carbon black, 1 part of terpene ethylene resin, 0.1 part of lanthanum oxide, 0.1 part of cerium oxide, 0.1 part of zirconia, 0.1 part of polyetheretherketone resin, 0.1 part of oxidized polyethylene wax, 1 part of macadamia nut shell powder, 0.1 part of macadamia The metal polyethylene and 0.2 parts of bamboo fiber are evenly mixed, extruded and granulated by a twin-screw extruder, and then formed by a hot-press molding machine to obtain an elastic shock-absorbing SBS material.

The twin-screw extruder includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 140°C, the temperature in the second temperature interval is 150°C, the temperature in the third temperature interval is 160°C, and the fourth temperature The temperature in the zone is 170°C, the temperature in the fifth temperature zone is 170°C, and the screw speed is 150r/min. The molding temperature of the hot press molding machine is 150° C., and the rotation speed is 180 r/min.

Comparative example 2

A preparation method of SBS material, comprising: 50 parts by weight of SBS, 5 parts of the third powder, 10 parts of polystyrene, 1 part of carbon black, 1 part of terpene resin, 0.1 part of lanthanum oxide, 0.1 part of cerium oxide, 0.1 part of zirconia, 0.1 part of polyetheretherketone resin, 0.1 part of oxidized polyethylene wax, and 0.1 part of metallocene polyethylene are mixed evenly, extruded and granulated by a twin-screw extruder , After being shaped by a hot press molding machine, the elastic shock-absorbing SBS material is obtained.

The twin-screw extruder includes five temperature intervals arranged in sequence, the temperature in the first temperature interval is 140°C, the temperature in the second temperature interval is 150°C, the temperature in the third temperature interval is 160°C, and the fourth temperature The temperature in the zone is 170°C, the temperature in the fifth temperature zone is 170°C, and the screw speed is 150r/min. The molding temperature of the hot press molding machine is 150° C., and the rotation speed is 180 r/min.

Taking Examples 1-4 and Comparative Examples 1 and 2 as evaluation objects, the mechanical properties of each SBS shoe sole material were tested, and the results are shown in Table 1. Among them, the tensile strength, impact strength and elongation at break are tested according to GB/T 1040.1~4, and the wear rate is tested by a universal friction and wear testing machine. The test conditions are: test force 30N, speed 250r/min, test time 30min, wear rate The calculation formula is: wear rate=(mass before rubbing-mass after rubbing)/mass before rubbing×100%, and the Shore hardness refers to the ISO 868 standard test.

The mechanical property of each embodiment of table 1

As can be seen from Table 1, the tensile strength, impact strength and Shore hardness of each embodiment are greater than Comparative Examples 1 and 2, so the strength of the SBS material prepared by the present invention is better than the SBS shoe sole material prepared by common method , and the result of Comparative Example 1 is better than Comparative Example 2, so adding lanthanum oxide, cerium oxide, zirconium oxide, macadamia nut shell powder, and bamboo fiber can further improve the strength of the sole material when mixing; and Examples 1 to 3 The elongation at break of the prepared material is greater than that of Comparative Examples 1 and 2, so the elasticity of the material prepared by the present invention is better than that of the traditional method. From the results of Comparative Example 1 and Comparative Example 2, it can be inferred that the elongation at break of Comparative Example 1 Greater than the elongation at break of Comparative Example 2, so macadamia nut shell powder and bamboo fiber can improve the elasticity of the material; meanwhile, the wear rate of the embodiment of the present invention is lower than that of the comparative example, so it can be inferred that the prepared SBS material of the present invention is wear-resistant performance is superior to traditional methods.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. a preparation method of elastic shock-absorbing SBS material, is characterized in that, comprises the following steps: Step 1. Add calcium lactate and sodium lauryl sulfate into water, stir for 1-2 hours at a temperature of 40-60°C and a stirring rate of 600-1000r/min, then add glucose and sodium carbonate, and then 100-140°C, stirring rate 200-500r/min, stirring for 8-12h, cooling, and centrifugation to obtain the precipitate; the precipitate was successively washed with ethanol aqueous solution with gradually decreasing volume fraction, then washed with distilled water, dried, and ground , to obtain the first powder; in step 1, the mass ratio of calcium lactate, water, sodium lauryl sulfate, glucose, and sodium carbonate is 1:5～10:0.1～0.2:0.1～0.5:3～5; Step 2: Add yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, and sodium polyacrylate to the first powder, mix and stir evenly, place in a heating furnace for sintering in sequence, and then grind to obtain the first powder Two powders; the mass ratio of the first powder, yttrium nitrate, neodymium oxide, hydroxypropyl methylcellulose, polyethylene glycol, sodium polyacrylate in step 2 is 8:0.1～0.5:0.1～0.3:0.05～0.1: 0.2～0.5:0.1～0.2; Step 3: Add ethylene glycol, water, and linoleic acid to the second powder, stir for 2-3 hours at a temperature of 40-60°C and a stirring rate of 300-400r/min, and then add dodecylbenzenesulfonic acid Sodium, stir for 0.5-1h under nitrogen atmosphere, then add styrene, heat to 60-80°C, add potassium sulfate dropwise, stir at a stirring rate of 600-800r/min for 10-15h, filter, under the pressure of tetrafluoroethylene gas 0.1-0.2MPa, drying at 35-50°C for 4-6 hours, grinding to obtain the third powder, for later use; in step 3, the second powder, ethylene glycol, water, linoleic acid, dodecylbenzenesulfonic acid The mass ratio of sodium, styrene and potassium sulfate is 5:1～2:8～15:1.5～2.5:0.1～0.5:2～3:2.5～4.5; Step 4, the parts by weight are 50-80 parts of SBS, 5-15 parts of the third powder, 10-20 parts of polystyrene, 5-10 parts of ultra-high molecular weight polyethylene, 1-2 parts of carbon black, 1 to 2 parts of terpene resin, 0.1 to 0.5 parts of lanthanum oxide, 0.1 to 0.2 parts of cerium oxide, 0.1 to 0.5 parts of zirconia, 0.1 to 0.5 parts of polyether ether ketone resin, 0.1 to 0.2 parts of oxidized polymer Ethylene wax, 1 to 2 parts of macadamia nut shell powder, 0.1 to 0.5 parts of metallocene polyethylene, and 0.2 to 0.6 parts of bamboo fiber are mixed evenly, extruded and granulated by a twin-screw extruder, and then formed by hot pressing After machine forming, the elastic shock-absorbing SBS material is obtained. 2. The preparation method of the elastic shock-absorbing SBS material as claimed in claim 1, wherein the twin-screw extruder in step 4 comprises five temperature intervals arranged in sequence, and the temperature in the first temperature interval is 140 to 150 °C, the temperature in the second temperature range is 150-160 °C, the temperature in the third temperature range is 160-170 °C, the temperature in the fourth temperature range is 170-180 °C, and the temperature in the fifth temperature range is 170-180 °C, The screw speed is 150-250r/min. 3. The preparation method of elastic shock-absorbing SBS material as claimed in claim 1, characterized in that, in step 4, the molding temperature of the hot press molding machine is 150-180° C., and the rotation speed is 180-230 r/min. 4. the preparation method of elastic shock-absorbing SBS material as claimed in claim 1 is characterized in that, in step 1, sediment is used successively as volume fraction is 75%～90%, 65%～75%, 55%～65% Wash with ethanol aqueous solution. 5. the preparation method of elastic shock-absorbing SBS material as claimed in claim 1 is characterized in that, sintering comprises four stages in step 2, is successively: In the first stage, the temperature is raised from room temperature to 100°C at a heating rate of 5°C/h, then from 100°C to 150°C at a heating rate of 10°C/h, and finally from 150°C to 200°C at a heating rate of 6°C /h, keep at 200℃ for 2~4h; In the second stage, the temperature is raised from 200°C to 400°C at a heating rate of 10°C/h; In the third stage, the temperature is raised from 400°C to 600°C at a heating rate of 15°C/h, then from 600°C to 400°C at a cooling rate of 8°C/h, and finally kept at 400°C for 1 to 2 hours; The fourth stage is cooling from 400°C to room temperature with a cooling rate of 8°C/h. 6. The preparation method of elastic shock-absorbing SBS material as claimed in claim 1, characterized in that the pressure of nitrogen in step 3 is 0.1-0.5Mpa.