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WO2018130120A1 - Composite de polypropylène thermochromique, procédé de préparation de celui-ci et applications associées - Google Patents

Composite de polypropylène thermochromique, procédé de préparation de celui-ci et applications associées Download PDF

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Publication number
WO2018130120A1
WO2018130120A1 PCT/CN2018/071596 CN2018071596W WO2018130120A1 WO 2018130120 A1 WO2018130120 A1 WO 2018130120A1 CN 2018071596 W CN2018071596 W CN 2018071596W WO 2018130120 A1 WO2018130120 A1 WO 2018130120A1
Authority
WO
WIPO (PCT)
Prior art keywords
thermochromic
polypropylene composition
microcapsule
composition according
melamine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/071596
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English (en)
Chinese (zh)
Inventor
雷亮
王大中
苏娟霞
林荣涛
孙刚
吴国峰
杨波
罗忠富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
Original Assignee
Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kingfa Science and Technology Co Ltd, Shanghai Kingfa Science and Technology Co Ltd filed Critical Kingfa Science and Technology Co Ltd
Publication of WO2018130120A1 publication Critical patent/WO2018130120A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients

Definitions

  • Discoloration usually requires external environmental factors such as light and heat.
  • the heat-induced discoloration is thermochromic, which means that when the temperature reaches a characteristic discoloration temperature, the color-changing material changes from one color to another.
  • thermochromic color is mainly used in the field of coatings and inks, and has not been involved in the plastics industry.
  • CN 102615890A describes a thermochromic plastic which is composed of five layers of materials, including a plastic base layer, which is provided with a transparent protective film on both sides of the plastic base layer and is heat-pressed on the plastic base layer, and the outer surface of the transparent protective film is also coated with a layer.
  • a color changing ink layer containing a thermochromic powder The thermochromic plastic is still coated with a thermochromic ink on the surface of the plastic to achieve discoloration.
  • temperature-sensitive discoloration in plastic bodies has not been reported.
  • Temperature-sensitive color microcapsules 0.5 to 3 parts
  • the core material of the thermochromic microcapsule is a triphenylmethane metal complex, and the wall material is a melamine formaldehyde resin.
  • the preparation method of the melamine formaldehyde resin of the invention comprises the following steps: firstly adding formaldehyde and melamine in a molar ratio of 2.5/1 to 3/1 at a pH of 7.5 to 8.5 to obtain a methylol melamine prepolymer. Then, the triphenylmethane metal complex is dispersed in a 0.2-1.0 wt% aqueous solution of sodium dodecyl sulfate, and finally the methylol melamine prepolymer is added to the above solution, and the solution is adjusted to pH. The microcapsule emulsion was obtained at 5.5-6.5, reacted at 80-90 ° C for 3 h, and finally washed, filtered, and dried to obtain a thermochromic microcapsule.
  • the thermochromic microcapsule has a particle size of 10 to 50 um.
  • the particle size of the microcapsules is too large, the microcapsule emulsion is unstable and easy to be layered, the microcapsules are poorly coated, the discoloration is uneven, the color difference before and after discoloration is large, the discoloration is uneven, and the color difference before and after discoloration is large, and the temperature is sensitive.
  • the number of times of discoloration of the discolored polypropylene composition is reduced; when the particle size of the microcapsule is too small, the amount of sodium dodecylsulfonate is too high, the residue is large, the smell is large, the cost is high, and the processing is not easy to disperse, which affects the uniformity of discoloration. Sex.
  • the particle size of the microcapsules is 10 to 50 um, the microcapsules have good coating properties, suitable particle size, and good processing and dispersibility.
  • thermochromic polypropylene composition further comprises from 0.5 to 2 parts of an adjuvant selected from the group consisting of one or more of an antioxidant, a light stabilizer, or a lubricant.
  • the antioxidant is a mixture of hindered phenols and phosphite antioxidants, specifically 1010, 1076, 3114, 168.
  • the light stabilizer is a hindered amine light stabilizer, and specifically, a mixture of one or more of UV ⁇ 3808PP5, LA ⁇ 402XP or LA ⁇ 402AF may be selected.
  • the lubricant is selected from one or a mixture of ethylene bis stearamide, erucamide, zinc stearate or silicone oil.
  • thermochromic polypropylene composition comprising the steps of: mixing a polypropylene resin and a thermochromic microcapsule into a twin-screw extruder, adding an antioxidant, and stabilizing if necessary
  • One or a mixture of the agent or the lubricant is mixed with the above polypropylene resin and the thermochromic microcapsule, and then melt-kneaded, and the melt-kneading temperature is 170 to 190 ° C, and extrusion granulation is carried out to obtain the Thermochromic polypropylene composition.
  • thermochromic polypropylene composition can be used in automotive dashboards, sub-dashboards, seats, door panels, bumpers or columns.
  • the heat resistance of the micro-capsule wall material is good, so that the temperature-changing material of the core material is less affected by heat, so that the color-changing component can be effectively protected, so that it can withstand long-term heat and can stably It changes color back and forth, and can continue to change color after baking at 100 ° C for 720 h, and has excellent long-term heat resistance.
  • Polypropylene resin random copolymer polypropylene resin, J-570S, Lotte Chemical Co., Ltd., tested at 230 ° C, 2.16 kg load according to ASTM D-1238 melt flow rate of 28g/10min;
  • Triphenylmethane metal complex Shanghai Anzhen Biological Co., Ltd.;
  • Thermochromic powder produced by Guangzhou Jingcai Pigment Technology Co., Ltd.;
  • Antioxidants, light stabilizers, lubricants, melamine, formaldehyde, sodium dodecyl sulfonate are all commercially available.
  • the concentration of the above aqueous sodium dodecyl sulfate is 0.8% by weight, and the product is a thermochromic microcapsule A having a particle size of 5 um.
  • the concentration of the above aqueous sodium dodecyl sulfate is 0.7 wt%, and the product is a thermochromic microcapsule B having a particle size of 10 um.
  • the comparative example uses a thermosensitive color-changing powder which is not subjected to microcapsule coating or a thermosensitive color-changing microcapsule which is made of a wall material, and the polypropylene composition obtained by baking at 720 ° C for 720 h has a large color difference ⁇ E.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

L'invention concerne un composite de polypropylène thermochromique, comprenant les composants suivants en termes de parties en poids : une résine de polypropylène pour 95 à 99 parties et une microcapsule thermochromique pour 0,5 à 3 parties. Le matériau de noyau de la microcapsule thermochromique est un complexe métallique de triphénylméthane, le matériau de paroi de la microcapsule thermochromique est formé par polymérisation de formaldéhyde et de mélamine et le rapport molaire formaldéhyde/mélamine est de 2,5/1 à 3/1. Tout d'abord, la mélamine et le formaldéhyde subissent une réaction d'addition dans un environnement à 7,5 à 8,5 de pH pour produire un prépolymère de mélamine d'hydroxyméthyle, puis le complexe métallique de triphénylméthane est dispersé dans une solution aqueuse de sulfate de dodécyle de sodium de 0,2 % à 1,0 % en poids de concentration, enfin, le prépolymère de mélamine d'hydroxyméthyle est ajouté à la solution de l'invention, la solution est régulée à un pH de 5,5 à 6,5 pour produire une émulsion de microcapsule qui est mise à réagir entre 80 °C et 90 °C pendant 3 h, rincée, filtrée par aspiration et séchée pour produire la microcapsule thermochromique. Le composite de polypropylène thermochromique présente une grande résistance à la chaleur à long terme, est largement applicable dans le tableau de bord, le tableau de bord auxiliaire, les sièges, les panneaux de porte, les pare-chocs ou les colonnes d'un véhicule.
PCT/CN2018/071596 2017-01-12 2018-01-05 Composite de polypropylène thermochromique, procédé de préparation de celui-ci et applications associées Ceased WO2018130120A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710021333.6 2017-01-12
CN201710021333.6A CN107841049A (zh) 2017-01-12 2017-01-12 一种感温变色的聚丙烯组合物及其制备方法和应用

Publications (1)

Publication Number Publication Date
WO2018130120A1 true WO2018130120A1 (fr) 2018-07-19

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Country Link
CN (1) CN107841049A (fr)
WO (1) WO2018130120A1 (fr)

Cited By (2)

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CN113999459A (zh) * 2021-11-11 2022-02-01 上海金发科技发展有限公司 一种具有温变功能的耐老化聚丙烯组合物及其制备方法和应用
CN115926518A (zh) * 2022-12-20 2023-04-07 国网吉林省电力有限公司电力科学研究院 一种电力设备致热缺陷预警检测涂料与贴片制备方法

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CN108948431A (zh) * 2018-08-01 2018-12-07 南通醋酸纤维有限公司 一种温致变色醋酸纤维素复合材料及其制备方法和应用
CN110885500B (zh) * 2019-12-03 2022-02-08 上海日之升科技有限公司 一种可光学变色的高透明聚丙烯树脂及其制备方法
CN113088001B (zh) * 2021-03-12 2023-03-10 浙江苏达山新材料有限公司 基于纳米微胶囊包裹技术的色母粒及其制备方法
CN114805998B (zh) * 2022-05-13 2022-11-11 广东南缆电缆有限公司 感温变色组合物及其制备方法和在插座、插排、开关中的应用

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CN102827597A (zh) * 2012-06-21 2012-12-19 天津工业大学 一种热敏变色、储能材料及其制备方法
CN103408833A (zh) * 2013-06-30 2013-11-27 楼仲平 一种高性能的感温变色材料及吸管的制备方法
CN204178653U (zh) * 2014-11-17 2015-02-25 北京维信诺科技有限公司 具有简易显示功能的oled照明屏
CN105013414A (zh) * 2015-07-30 2015-11-04 苏州雄鹰笔墨科技有限公司 一种可逆温敏变色微胶囊、制备方法及其应用
CN105400359A (zh) * 2015-12-03 2016-03-16 美盈森集团股份有限公司 一种可逆温致变色材料、家具及制备方法
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JP2003119309A (ja) * 2001-10-15 2003-04-23 Pilot Ink Co Ltd 可逆熱変色性発泡体及びその製造方法
CN105170041A (zh) * 2015-07-13 2015-12-23 西安理工大学 一种可逆热致变色微胶囊颜料的制备方法
CN105524399A (zh) * 2015-12-29 2016-04-27 银禧工程塑料（东莞）有限公司 一种3d打印的聚合物材料及其制备方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113999459A (zh) * 2021-11-11 2022-02-01 上海金发科技发展有限公司 一种具有温变功能的耐老化聚丙烯组合物及其制备方法和应用
CN113999459B (zh) * 2021-11-11 2023-09-26 上海金发科技发展有限公司 一种具有温变功能的耐老化聚丙烯组合物及其制备方法和应用
CN115926518A (zh) * 2022-12-20 2023-04-07 国网吉林省电力有限公司电力科学研究院 一种电力设备致热缺陷预警检测涂料与贴片制备方法
CN115926518B (zh) * 2022-12-20 2024-02-02 国网吉林省电力有限公司电力科学研究院 一种电力设备致热缺陷预警检测涂料与贴片制备方法

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Publication number Publication date
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