CN106553297A - A kind of palm wax and silicones Compositional type high-rebound polyurethane foaming product releasing agent - Google Patents
A kind of palm wax and silicones Compositional type high-rebound polyurethane foaming product releasing agent Download PDFInfo
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 66
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 33
- 239000004203 carnauba wax Substances 0.000 title claims abstract description 30
- 238000005187 foaming Methods 0.000 title claims description 6
- 229920001296 polysiloxane Polymers 0.000 title description 2
- 229920002050 silicone resin Polymers 0.000 claims abstract description 39
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 30
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 19
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 14
- 239000003995 emulsifying agent Substances 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000000805 composite resin Substances 0.000 claims description 5
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 5
- 229920000053 polysorbate 80 Polymers 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000013869 carnauba wax Nutrition 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 2
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical compound C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 claims description 2
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 229940057977 zinc stearate Drugs 0.000 claims description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 239000006082 mold release agent Substances 0.000 abstract description 12
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 description 21
- 239000006260 foam Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- 239000012188 paraffin wax Substances 0.000 description 5
- 239000011550 stock solution Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007957 coemulsifier Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
- B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
- B29C33/64—Silicone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂，涉及一种脱模剂，本发明的脱模剂是由棕榈蜡与硅树脂复配制备而成。本发明首次将棕榈蜡引入高回弹聚氨酯脱模剂中，所配制的复配型聚氨酯脱模剂在铸铝模具上对高回弹聚氨酯制品的脱模效果均为一级，脱模次数至少可达12次以上，且可以有效的改善传统高回弹聚氨酯脱模剂造成的泡孔不均匀现象，降低次品率，同时其制备工艺简单，易于操控，能够满足复杂高回弹聚氨酯制品对脱模剂的使用要求。The invention relates to a release agent for high-resilience polyurethane foam products compounded with palm wax and silicone resin, and relates to a release agent. The release agent of the invention is prepared by compounding palm wax and silicone resin. The present invention introduces palm wax into the high-resilience polyurethane mold release agent for the first time, and the prepared compound polyurethane mold release agent has a first-class demoulding effect on high-resilience polyurethane products on the cast aluminum mold, and the demoulding times are at least It can reach more than 12 times, and can effectively improve the unevenness of cells caused by traditional high-resilience polyurethane release agents and reduce the rate of defective products. At the same time, its preparation process is simple and easy to control, which can meet the requirements of complex high-resilience polyurethane products. Requirements for the use of release agents.
Description
技术领域technical field
本发明涉及一种脱模剂，特别是涉及一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂。The invention relates to a release agent, in particular to a release agent for high-resilience polyurethane foam products compounded with palm wax and silicone resin.
背景技术Background technique
高回弹聚氨酯是一种性能优良的软质泡沫塑料。除了具有普通软泡质轻、柔软、比强度高、绝热性好等优点外，还具有更高的回弹性、类似乳胶泡沫的手感和高度的舒适性，因此广泛应用于汽车、家具等行业。在聚氨酯发泡成型过程中需要使用脱模剂来防止聚氨酯泡沫与模具之间的附着作用。所以开发脱模效果好、不易残留在模具表面、环保、安全，且能使泡沫制品表面具有开孔结构的新型液体脱模剂具有重要的实际意义。High resilience polyurethane is a flexible foam with excellent performance. In addition to the advantages of ordinary soft foam, such as light weight, softness, high specific strength, and good heat insulation, it also has higher resilience, a feel similar to latex foam, and high comfort, so it is widely used in automobiles, furniture and other industries. In the polyurethane foam molding process, a mold release agent is required to prevent the adhesion between the polyurethane foam and the mold. Therefore, it is of great practical significance to develop a new type of liquid release agent that has good demoulding effect, is not easy to remain on the surface of the mold, is environmentally friendly, safe, and can make the surface of the foam product have an open-pore structure.
目前市场上最常使用的聚氨酯脱模剂为蜡系脱模剂和硅系脱模剂。例如：《内蒙古石油化工》中2007年发表的《乳化石蜡脱模剂配方选择》，采用相转移乳化法，以石蜡、乳化剂、水为主要原料制备了一种水性脱模剂。实验结果表明，当乳化温度为 80℃、搅拌速度为3000r/min、石蜡用量为10%、硬脂酸的含量为7%、助乳化剂用量为5%时所制备的脱模剂外观均匀、细腻、稳定性较好。CN201510031671.9公开了一种脱模剂主要成分为石蜡5-13份、硬脂酸2-6 份、氢氧化钾3-7份，脂肪醇聚氧乙烯醚4-8份，磷酸二氢铝5-9 份，石墨烯2-7 份，环氧树脂3-9份，二烷基二硫代磷酸锌8-15份，偶联剂2-5份。采用上述配比制得的聚氨酯脱模剂使用时虽然可以顺利脱模，但由于普通石蜡自身的熔点较低，经多次使用后，模具温度升高，易产生分解而污染模具，影响脱模次数。《聚氨酯工业》2005年发表的《聚氨酯微孔弹性体模塑用硅油型脱模剂的研制》，采用八甲基环四硅氧烷(D4)、六甲基硅氧烷(MM)等主要原料在反应温度为85~95℃下，合成了带有部分支链结构、粘度为160~200 mPa·s的硅系脱模剂。研究发现硅油中甲基质量分数在39.55%左右时，脱模效果最好。WO2004033172公开了一种半永久性水基型硅脱模剂，采用烷氧基聚合物与适当的交联剂、润湿剂、增稠剂和分散剂复配成的脱模剂组合物，用于聚氨酯等模制件的脱模，具有较为良好的脱模效果。然而，对于复杂的高回弹聚氨酯发泡制品，通常由于高回弹聚氨酯的发泡工艺本身就不同于传统实心聚氨酯的生产工艺，影响因素较多，其发泡质量直接影响产品品质，且其制品棱角复杂、细致，对于尺寸稳定性和表面光洁度要求高，如果使用传统蜡系或硅系脱模剂会造成其闭孔率增加，次品率升高，脱模次数减少，模具易污染等难题。The most commonly used polyurethane release agents on the market are wax-based release agents and silicon-based release agents. For example: "Selection of Emulsified Paraffin Release Agent Formulation" published in "Inner Mongolia Petrochemical Industry" in 2007, a water-based release agent was prepared with paraffin, emulsifier and water as the main raw materials by phase transfer emulsification method. The experimental results show that when the emulsification temperature is 80°C, the stirring speed is 3000r/min, the amount of paraffin wax is 10%, the content of stearic acid is 7%, and the amount of co-emulsifier is 5%, the appearance of the prepared release agent is uniform, Delicate and stable. CN201510031671.9 discloses a release agent whose main components are 5-13 parts of paraffin, 2-6 parts of stearic acid, 3-7 parts of potassium hydroxide, 4-8 parts of fatty alcohol polyoxyethylene ether, aluminum dihydrogen phosphate 5-9 parts, graphene 2-7 parts, epoxy resin 3-9 parts, dialkyl dithiophosphate zinc 8-15 parts, coupling agent 2-5 parts. Although the polyurethane mold release agent prepared with the above ratio can be demolded smoothly, due to the low melting point of ordinary paraffin wax, after repeated use, the temperature of the mold will rise, and it is easy to decompose and pollute the mold, affecting demoulding. frequency. "Development of Silicone Oil Release Agent for Polyurethane Microporous Elastomer Molding" published by "Polyurethane Industry" in 2005, using octamethylcyclotetrasiloxane (D4), hexamethylsiloxane (MM) and other major The silicon-based release agent with a partially branched chain structure and a viscosity of 160-200 mPa·s was synthesized at a reaction temperature of 85-95°C. The study found that when the mass fraction of methyl in silicone oil is about 39.55%, the release effect is the best. WO2004033172 discloses a semi-permanent water-based silicone mold release agent, which uses a mold release agent composition compounded with an alkoxy polymer and an appropriate crosslinking agent, wetting agent, thickener and dispersant for use in The demoulding of molded parts such as polyurethane has a relatively good demoulding effect. However, for complex high-resilience polyurethane foam products, usually because the foaming process of high-resilience polyurethane is different from the production process of traditional solid polyurethane, there are many influencing factors, and its foaming quality directly affects product quality, and its The edges and corners of the product are complex and meticulous, and have high requirements for dimensional stability and surface finish. If traditional wax-based or silicon-based release agents are used, the rate of closed cells will increase, the rate of defective products will increase, the number of demoulding times will decrease, and the mold will be easily polluted, etc. problem.
发明内容Contents of the invention
本发明的目的在于提供一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂，本发明将具有更好光洁度和稳定性的棕榈蜡引入高回弹聚氨酯制品脱模剂中。具有泡孔分布均匀、大小稳定，脱模次数高，对模具污染小等特点，满足复杂具聚氨酯发泡制品对脱模剂性能的要求。The object of the present invention is to provide a release agent for high-resilience polyurethane foam products compounded with palm wax and silicone resin. The present invention introduces palm wax with better smoothness and stability into the release agent for high-resilience polyurethane products . It has the characteristics of uniform distribution of cells, stable size, high demoulding times, and little pollution to the mold, and meets the requirements of complex polyurethane foam products on the performance of the release agent.
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂，所述脱模剂组成包括硅树脂、分散助剂、溶剂、改性棕榈蜡；脱模剂为一种改性棕榈蜡与硅树脂的混合物，其在脱模剂中所占质量百分比浓度为2.0%-10.0%；硅树脂为甲基硅树脂、苯基硅树脂、甲基苯基硅树脂、甲基乙烯基硅树脂的一种或几种物质的混合物，其在脱模剂中所占质量百分比浓度为0.5%-5.00%；分散助剂为十二烷基二甲胺乙内酯、TWEEN-80、SPAN-80、脂肪醇聚氧乙烯醚、十二烷基苯磺酸钠、硬脂酸锌、辛基苯基聚氧乙烯醚中的一种或几种物质的混合物，其在脱模剂中所占质量百分比浓度为0.1%-5.0%。A kind of release agent of palm wax and silicone resin composite type high-resilience polyurethane foaming products, the release agent composition includes silicone resin, dispersing aid, solvent, modified palm wax; release agent is a modified The mixture of carnauba wax and silicone resin, its mass percentage concentration in the release agent is 2.0%-10.0%; the silicone resin is methyl silicone resin, phenyl silicone resin, methyl phenyl silicone resin, methyl vinyl Silicone resin is a mixture of one or several substances, and its mass percentage concentration in the release agent is 0.5%-5.00%; the dispersion aid is lauryl dimethyl betaine, TWEEN-80, SPAN -80, Fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate, zinc stearate, octylphenyl polyoxyethylene ether or a mixture of several substances, which are contained in the release agent The mass percentage concentration is 0.1%-5.0%.
所述的一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂，所述溶剂包括甲醇、乙醇、二甲苯、正庚烷、环己酮、异丙醇、白油、120#溶剂油中的一种或几种物质的混合物。Described a kind of release agent of palm wax and silicone resin composite type high resilience polyurethane foam product, described solvent comprises methanol, ethanol, xylene, n-heptane, cyclohexanone, isopropanol, white oil, One or a mixture of several substances in 120# solvent oil.
所述的一种棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂，所述脱模剂通过如下方法制备：Described a kind of release agent of palm wax and silicone resin compound type high resilience polyurethane foam product, described release agent is prepared by following method:
（1）将棕榈蜡与硅树脂按质量比在90-100℃条件下加热熔解，待完全熔解后，继续搅拌3-10分钟；(1) Heat and melt palm wax and silicone resin at 90-100°C according to the mass ratio, and continue stirring for 3-10 minutes after complete melting;
（2）将步骤（1）的产物降温至80-90℃，并加入质量配比的一种或几种分散助剂的混合物，在选定温度下经超声波震荡30-180秒，然后用高剪切均质乳化机在10000-3000r/min条件下，充分乳化0.5-3h即可获得复配型高回弹聚氨酯发泡制品脱模剂；(2) Cool the product of step (1) to 80-90°C, and add a mixture of one or more dispersing aids in a mass ratio, vibrate ultrasonically for 30-180 seconds at a selected temperature, and then use high Under the condition of 10000-3000r/min, the shearing homogeneous emulsifier can fully emulsify for 0.5-3 hours to obtain a compound high-resilience polyurethane foam release agent;
（3）在室温下加入溶剂稀释至使用浓度范围，即可直接喷涂使用。(3) Add solvent to dilute to the use concentration range at room temperature, and then spray it directly.
本发明的优点与效果是：Advantage and effect of the present invention are:
本发明将具有更好光洁度和稳定性的棕榈蜡引入高回弹聚氨酯制品脱模剂中。在分散剂、溶剂等助剂的共同作用下，棕榈蜡与硅树脂形成的新型脱模剂可改善传统高回弹发泡聚氨酯脱模剂造成的泡孔不均匀现象，具有泡孔分布均匀、大小稳定，脱模次数高，对模具污染小等特点，并且该脱模剂的制备工艺简单，易于操控，乳液储存稳定性好，可以满足复杂具聚氨酯发泡制品对脱模剂性能的要求。The invention introduces the carnauba wax with better smoothness and stability into the mold release agent for high-resilience polyurethane products. Under the joint action of dispersants, solvents and other additives, the new release agent formed by palm wax and silicone resin can improve the unevenness of the cells caused by the traditional high-resilience foaming polyurethane release agent, and has the advantages of uniform cell distribution, It has the characteristics of stable size, high demolding times, and less pollution to the mold. The preparation process of the release agent is simple, easy to handle, and the emulsion has good storage stability, which can meet the performance requirements of complex polyurethane foam products for the release agent.
附图说明Description of drawings
图1为实施例1所制备的棕榈蜡与硅树脂复配型聚氨酯脱模剂脱模效果及孔径分布图；Fig. 1 is the demoulding effect and pore size distribution figure of palm wax and silicone resin compound type polyurethane mold release agent prepared by embodiment 1;
图2为对比例单一硅树脂聚氨酯脱模剂脱模效果及孔径分布图。Fig. 2 is the release effect and pore size distribution diagram of a single silicone resin polyurethane mold release agent in the comparative example.
具体实施方式detailed description
下面结合实施例对本发明进行详细说明。The present invention will be described in detail below in conjunction with examples.
实施例1：将3.0wt.%棕榈蜡、1.0wt.%硅树脂在95℃加热熔解，待熔完全熔化后，继续搅拌3分钟，随后将温度降至85℃，加入0.4wt.%的Tween80与0.4wt.%的SPAN80，然后将乳液经超声波震荡90秒后用高剪切均质乳化机乳化1小时（搅拌速度为20000r/min），最后逐渐滴加55.2wt.%溶剂，形成稠状乳液即为棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂原液，使用时在室温下加入40.0wt.%的正庚烷后即可直接喷涂使用。Example 1: Heat and melt 3.0wt.% palm wax and 1.0wt.% silicone resin at 95°C. After the melt is completely melted, continue stirring for 3 minutes, then lower the temperature to 85°C, and add 0.4wt.% Tween80 With 0.4wt.% of SPAN80, the emulsion was ultrasonically oscillated for 90 seconds and emulsified with a high-shear homogeneous emulsifier for 1 hour (stirring speed was 20000r/min), and finally 55.2wt.% solvent was gradually added dropwise to form a thick The emulsion is the stock solution of release agent for high-resilience polyurethane foam products compounded with palm wax and silicone resin. It can be sprayed directly after adding 40.0wt.% n-heptane at room temperature.
乳液稳定性：经离心机3000r/min离心5分钟，该配方所配制脱模剂乳液不破乳、不分层。Emulsion stability: After being centrifuged at 3000r/min for 5 minutes, the release agent emulsion prepared by this formula will not be demulsified or delaminated.
脱模效果：将聚氨酯发泡模具升温至60℃，在其表面均匀喷涂脱模剂，并用喷枪吹干溶剂，再将高回弹聚氨酯A、B料按5:3的质量比，快速搅拌均匀倒入模具中，保温发泡10分钟，开模并取出聚氨酯泡沫制品。该配方所配制的脱模剂对高回弹聚氨酯脱模效果为一级（上下模均能快速脱离，模具表面无泡沫制品残留，且制品表面平整，棱角整洁，无破损）。脱模次数为12次。Release effect: Heat the polyurethane foam mold to 60°C, spray the release agent evenly on the surface, and dry the solvent with a spray gun, then mix the high-resilience polyurethane A and B materials according to the mass ratio of 5:3, and stir quickly and evenly Pour it into a mold, heat and foam for 10 minutes, open the mold and take out the polyurethane foam product. The release agent prepared by this formula has a first-class release effect on high-resilience polyurethane (both the upper and lower molds can be quickly detached, there is no foam product residue on the mold surface, and the surface of the product is smooth, the edges and corners are clean, and there is no damage). The demoulding frequency is 12 times.
制品表面形貌测定：在聚氨酯泡沫制品与模具接触的表面，其泡孔处于全开孔状态，孔状较均匀，无脱模剂残留，如图1所示。Measurement of product surface morphology: On the surface of the polyurethane foam product in contact with the mold, the cells are fully open, the shape of the cells is relatively uniform, and there is no mold release agent residue, as shown in Figure 1.
实施例2：将3.0wt.%棕榈蜡、1.0wt.%硅树脂在95℃加热熔解，待完全熔化后，待熔完全熔化后，继续搅拌3分钟，随后将温度降至85℃，加入0.5wt.%的脂肪醇聚氧乙烯醚与0.5wt.%的硬脂酸锌，然后将乳液经超声波震荡90秒后用高剪切均质乳化机乳化1小时（搅拌速度为20000r/min），最后逐渐滴加55.0wt.%溶剂，形成稠状乳液即为棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂原液，使用时在室温下加入40.0wt.%正庚烷后即可直接喷涂使用。Example 2: Heat and melt 3.0wt.% palm wax and 1.0wt.% silicone resin at 95°C. wt.% fatty alcohol polyoxyethylene ether and 0.5wt.% zinc stearate, then ultrasonically oscillate the emulsion for 90 seconds and emulsify it with a high-shear homogeneous emulsifier for 1 hour (stirring speed is 20000r/min), Finally, add 55.0wt.% solvent gradually to form a thick emulsion, which is the stock solution of release agent for high resilience polyurethane foam products compounded with palm wax and silicone resin. When using it, add 40.0wt.% n-heptane at room temperature It can be sprayed directly.
乳液稳定性：经离心机3000r/min离心5分钟，该配方所配制脱模剂乳液不破乳、不分层。Emulsion stability: After being centrifuged at 3000r/min for 5 minutes, the release agent emulsion prepared by this formula will not be demulsified or delaminated.
脱模效果：将聚氨酯发泡模具升温至70℃，在其表面均匀喷涂脱模剂，并用喷枪吹干溶剂，再将高回弹聚氨酯A、B料按5:3的质量比，快速搅拌均匀倒入模具中，保温发泡10分钟，开模并取出聚氨酯泡沫制品。该配方所配制的脱模剂对高回弹聚氨酯脱模效果为一级（上下模均能快速脱离，模具表面无泡沫制品残留，且制品表面平整，棱角整洁，无破损），脱模次数为9次。Release effect: heat up the polyurethane foam mold to 70°C, spray the release agent evenly on the surface, and dry the solvent with a spray gun, then mix the high-resilience polyurethane A and B materials according to the mass ratio of 5:3, and stir quickly and evenly Pour it into a mold, heat and foam for 10 minutes, open the mold and take out the polyurethane foam product. The release agent prepared by this formula has a first-class release effect on high-resilience polyurethane (the upper and lower molds can be quickly detached, there is no foam product residue on the surface of the mold, and the surface of the product is smooth, the edges and corners are clean, and there is no damage), and the number of demoulding times is 9 times.
实施例3：将2.0wt.%棕榈蜡、2.0wt.%硅树脂在95℃加热熔解，待熔完全熔化后，继续搅拌3分钟，随后将温度降至85℃，加入0.2wt.%的Tween80与0.2wt.%的SPAN80，然后将乳液经超声波震荡100秒后用高剪切均质乳化机乳化0.5小时（搅拌速度为30000r/min），最后逐渐滴加55.6wt.%溶剂，形成稠状乳液即为棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂原液，使用时在室温下加入40.0wt.%的正庚烷后即可直接喷涂使用。Example 3: Heat and melt 2.0wt.% palm wax and 2.0wt.% silicone resin at 95°C. After the melt is completely melted, continue stirring for 3 minutes, then lower the temperature to 85°C, and add 0.2wt.% Tween80 With 0.2wt.% of SPAN80, the emulsion was ultrasonically oscillated for 100 seconds and emulsified with a high-shear homogeneous emulsifier for 0.5 hours (stirring speed was 30000r/min), and finally 55.6wt.% solvent was gradually added dropwise to form a thick The emulsion is the stock solution of release agent for high-resilience polyurethane foam products compounded with palm wax and silicone resin. It can be sprayed directly after adding 40.0wt.% n-heptane at room temperature.
乳液稳定性：经离心机3000r/min离心5分钟，该配方所配制脱模剂乳液不破乳、不分层。Emulsion stability: After being centrifuged at 3000r/min for 5 minutes, the release agent emulsion prepared by this formula will not be demulsified or delaminated.
脱模效果：将聚氨酯发泡模具升温至70℃，在其表面均匀喷涂脱模剂，并用喷枪吹干溶剂，再将高回弹聚氨酯A、B料按5:3的质量比，快速搅拌均匀倒入模具中，保温发泡10分钟，开模并取出聚氨酯泡沫制品。该配方所配制的脱模剂对高回弹聚氨酯脱模效果为一级（上下模均能快速脱离，模具表面无泡沫制品残留，且制品表面平整，棱角整洁，无破损），脱模次数为8次。Release effect: heat up the polyurethane foam mold to 70°C, spray the release agent evenly on the surface, and dry the solvent with a spray gun, then mix the high-resilience polyurethane A and B materials according to the mass ratio of 5:3, and stir quickly and evenly Pour it into a mold, heat and foam for 10 minutes, open the mold and take out the polyurethane foam product. The release agent prepared by this formula has a first-class release effect on high-resilience polyurethane (the upper and lower molds can be quickly detached, there is no foam product residue on the surface of the mold, and the surface of the product is smooth, the edges and corners are clean, and there is no damage), and the number of demoulding times is 8 times.
实施例4：将2.0wt.%棕榈蜡、2.0wt.%硅树脂在95℃加热熔解，待熔完全熔化后，继续搅拌3分钟，随后将温度降至85℃，加入0.2wt.%的span80与0.4wt.%的脂肪族聚氧乙烯醚，然后将乳液经超声波震荡150秒后用高剪切均质乳化机乳化1小时（搅拌速度为20000r/min），最后逐渐滴加55.4wt.%溶剂，形成稠状乳液即为棕榈蜡与硅树脂复配型高回弹聚氨酯发泡制品脱模剂原液，使用时在室温下加入40.0wt.% 二甲苯后即可直接喷涂使用。Example 4: Heat and melt 2.0wt.% palm wax and 2.0wt.% silicone resin at 95°C. After the melt is completely melted, continue stirring for 3 minutes, then lower the temperature to 85°C, and add 0.2wt.% span80 With 0.4wt.% aliphatic polyoxyethylene ether, then the emulsion was ultrasonically oscillated for 150 seconds and then emulsified with a high-shear homogeneous emulsifier for 1 hour (stirring speed was 20000r/min), and finally 55.4wt.% was gradually added dropwise Solvent, to form a thick emulsion, which is the stock solution of palm wax and silicone resin composite high-resilience polyurethane foam product release agent. When using it, add 40.0wt.% xylene at room temperature and then spray it directly.
乳液稳定性：经离心机3000r/min离心5分钟，该配方所配制脱模剂乳液不破乳、不分层。Emulsion stability: After being centrifuged at 3000r/min for 5 minutes, the release agent emulsion prepared by this formula will not be demulsified or delaminated.
脱模效果：将聚氨酯发泡模具升温至60℃，在其表面均匀喷涂脱模剂，并用喷枪吹干溶剂，再将高回弹聚氨酯A、B料按5:3的质量比，快速搅拌均匀倒入模具中，保温发泡10分钟，开模并取出聚氨酯泡沫制品。该配方所配制的脱模剂对高回弹聚氨酯脱模效果为一级（上下模均能快速脱离，模具表面无泡沫制品残留，且制品表面平整，棱角整洁，无破损）。脱模次数为7次。制品表面形貌测定：在聚氨酯泡沫制品与模具接触的表面，其泡孔处于全开孔状态，孔状较均匀，无脱模剂残留。Release effect: Heat the polyurethane foam mold to 60°C, spray the release agent evenly on the surface, and dry the solvent with a spray gun, then mix the high-resilience polyurethane A and B materials according to the mass ratio of 5:3, and stir quickly and evenly Pour it into a mold, heat and foam for 10 minutes, open the mold and take out the polyurethane foam product. The release agent prepared by this formula has a first-class release effect on high-resilience polyurethane (both the upper and lower molds can be quickly detached, there is no foam product residue on the mold surface, and the surface of the product is smooth, the edges and corners are clean, and there is no damage). The demoulding frequency is 7 times. Product surface morphology measurement: On the surface of the polyurethane foam product in contact with the mold, the cells are fully open, the shape of the cells is relatively uniform, and there is no mold release agent residue.
对比例：将4.0wt.%硅树脂在95℃加热熔解，待熔完全熔化后，继续搅拌5分钟，随后将温度降至85℃，加入0.4wt.%的Tween80与0.4wt.%的SPAN80，然后将乳液经超声波震荡90秒后用高剪切均质乳化机乳化1小时（搅拌速度为20000r/min），最后逐渐滴加55.2wt.%溶剂，形成稠状乳液即为单一硅树脂型聚氨酯脱模剂原液，使用时在室温下加入40.0wt.%的正庚烷后直接喷涂使用。Comparative example: Heat and melt 4.0wt.% silicone resin at 95°C. After the melt is completely melted, continue to stir for 5 minutes, then lower the temperature to 85°C, add 0.4wt.% Tween80 and 0.4wt.% SPAN80, Then the emulsion was ultrasonically oscillated for 90 seconds, and then emulsified with a high-shear homogeneous emulsifier for 1 hour (stirring speed 20000r/min), and finally 55.2wt.% solvent was gradually added dropwise to form a thick emulsion, which is a single silicone resin type polyurethane Release agent stock solution, when in use, add 40.0wt.% n-heptane at room temperature and spray it directly.
乳液稳定性：经离心机3000r/min离心5分钟，该配方所配制脱模剂乳液不破乳、不分层。Emulsion stability: After being centrifuged at 3000r/min for 5 minutes, the release agent emulsion prepared by this formula will not be demulsified or delaminated.
脱模效果：将聚氨酯发泡模具升温至60℃，在其表面均匀喷涂脱模剂，并用喷枪吹干溶剂，再将高回弹聚氨酯A、B料按5:3的质量比，快速搅拌均匀倒入模具中，保温发泡10分钟，开模并取出聚氨酯泡沫制品。该配方所配制的脱模剂对高回弹聚氨酯脱模效果为二级（上下模均能快速脱离，模具表面无泡沫制品残留，但制品表面凹凸不平），且聚氨酯制品存在泡孔不均匀现象，脱模次数为2次，如图2所示。Release effect: Heat the polyurethane foam mold to 60°C, spray the release agent evenly on the surface, and dry the solvent with a spray gun, then mix the high-resilience polyurethane A and B materials according to the mass ratio of 5:3, and stir quickly and evenly Pour it into a mold, heat and foam for 10 minutes, open the mold and take out the polyurethane foam product. The mold release agent prepared by this formula has a second-level demoulding effect on high-resilience polyurethane (both the upper and lower molds can be quickly detached, and there is no foam product residue on the mold surface, but the surface of the product is uneven), and the polyurethane product has uneven cells. , the demoulding times is 2 times, as shown in Figure 2.
本发明的范围不受具体实施实例限制，本发明范围内还包括功能等同的方法和组分。凡根据本发明基本组成和制备工艺所做的修改或者等同替换，也落入所述权力要求的范围之内。The scope of the present invention is not limited by specific implementation examples, and functionally equivalent methods and components are also included within the scope of the present invention. All modifications or equivalent replacements made according to the basic composition and preparation process of the present invention also fall within the scope of the claims.
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| CN111363181A (en) * | 2020-04-26 | 2020-07-03 | 东莞市鼎力薄膜科技有限公司 | Release film for heat-conducting silica gel sheet and preparation method thereof |
| CN111688079A (en) * | 2020-06-16 | 2020-09-22 | 上海力太化学有限公司 | Full-aqueous release agent for artificial plywood ecological plate |
| CN115416191A (en) * | 2022-07-28 | 2022-12-02 | 泸州市千秋日化有限公司 | Special release agent for polyester injection molding transparent part and preparation method thereof |
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