Organosilicone modified waterborne polyurethane emulsion, and preparation method and application thereof

A water-based polyurethane and silicone technology, applied in the field of materials, can solve the problems of pollution, solvent volatilization environment, affecting human safety, etc., and achieve the effect of high bonding strength and low operating temperature

Inactive Publication Date: 2017-05-17
重庆中科力泰高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of material processing and compounding, polyurethane adhesives are mainly used, and the largest amount is solvent-based polyurethane adhesives. The problem with it is that a large amount of solvent volatilization not only causes environmental pollution, but also affects human safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] S1: Weigh 24g of polybutylene adipate polyol (CMA-44), 1g of polypropylene glycol (PPG), 2.6g of 1,6-hexamethylene diisocyanate (HDI), 2.6g of isophorone diisocyanate ( IPDI) 3.4g, diethylene glycol (DEG) 1.75g, organotin dilaurate (T12) 0.01g, sodium ethylenediamine sulfonate 1.3g, N-aminoethyl-3-aminopropylmethyl di Methoxysilane (KH-602) 0.07g and deionized water 58g;

[0025] S2: Dehydrate polybutylene adipate polyol and polypropylene glycol in vacuum at 110°C, and cool the dehydrated polybutylene adipate polyol and polypropylene glycol to 75°C under the protection of dry inert gas, add 1,6 -Reaction of hexamethylene diisocyanate and isophorone diisocyanate for 1.5h, during which acetone equivalent to 2 times the total mass of polybutylene adipate polyol and polypropylene glycol was added to adjust the viscosity;

[0026] S3: Then add diethylene glycol and organotin dilaurate, keep the temperature at 75°C for 5 hours, then cool down to 35°C, add N-aminoethyl-3-amin...

Embodiment 2

[0035] S1: Weigh polytetrahydrofuran polyol (PTMG) 30g, isophorone diisocyanate (IPDI) 12g, 1,4-butanediol (BDO) 0.5g, diethylene glycol (DEG) 0.5g, dilauric acid Organotin (T12) 0.05g, sodium ethylenediamine sulfonate 1.0g, 3-aminopropyltriethoxysilane (KH-550) 0.05g and deionized water 55g;

[0036] S2: Dehydrate polytetrahydrofuran polyol in vacuum at 130°C, under the protection of dry inert gas, cool the dehydrated polytetrahydrofuran polyol to 70°C, add isophorone diisocyanate to react for 1 hour, and add equivalent polytetrahydrofuran polyol 3 times the mass of acetone to adjust the viscosity;

[0037] S3: Then add 1,4-butanediol, diethylene glycol and organotin dilaurate, keep the temperature at 80°C for 4.5h, then cool down to 45°C, add 3-aminopropyltriethoxysilane, ethylene dilaurate Sodium sulfamate was incubated for 10 minutes to obtain an ionomer;

[0038] S4: add deionized water to emulsify, and stir at a constant speed to remove acetone, and obtain a silicone-m...

Embodiment 3

[0040]S1: Weigh 26g of polybutylene adipate polyol (CMA-44), 3.8g of polyhexanediol adipate polyol (4020D), 3.8g of toluene diisocyanate, and isophorone diisocyanate (IPDI) 5.1g, diethylene glycol (DEG) 2.03g, organotin dilaurate (T12) 0.01g, sodium ethylenediamine sulfonate 1.5g, N-aminoethyl-3-aminopropylmethyl dimethoxy Silane (KH-602) 0.1g and deionized water 57g;

[0041] S2: Dehydrate poly(butylene adipate) polyol and poly(butylene adipate) polyol in vacuum at 120°C, and dehydrate the dehydrated poly(butylene adipate) polyol and poly(adipic acid) The temperature of hexanediol polyol was lowered to 72°C, and toluene diisocyanate and isophorone diisocyanate were added to react for 1.5 hours, during which time 2.5 twice as much acetone to adjust the viscosity;

[0042] S3: Then add diethylene glycol and organotin dilaurate, keep the temperature at 78°C for 5 hours, then cool down to 40°C, add N-aminoethyl-3-aminopropylmethyldimethoxysilane, ethylenediamine Sodium sulfona...

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PUM

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Abstract

The invention belongs to the field of materials, and concretely relates to an organosilicone modified waterborne polyurethane emulsion, which is prepared from the following components in parts by mass: 25 to 30 parts of polyhydric alcohols, 6 to 12 parts of diisocyanate, 1 to 4 parts of alcohol chain extender, 0.01 to 0.05 part of organic tin catalyst, 1 to 2 parts of hydrophilic chain extender, 0.05 to 0.1 part of organosilicone, and 55 to 60 parts of deionized water. The organosilicone modified waterborne polyurethane emulsion provided by the invention well solves the contradiction problems of low activation temperature and high temperature resistance, has significance on realistic research and practical application, and can be applied in the fields requiring low operating temperature, high bonding strength and especially high temperature resistance, such as the industries of 3D (Three-dimensional) furniture paint-free blister adhesive and fabric composite.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to an organosilicon-modified water-based polyurethane emulsion and a preparation method and application thereof. Background technique [0002] With the development of society, people have higher and higher requirements for materials. Food, tobacco, medicine, cosmetics, office consumer goods, automotive interior parts, and home decoration industries not only pay attention to the appearance of materials, easy construction, but also put forward practical requirements. higher requirements. Applied materials such as PVC, PET, PP, and PC, especially PVC containing a large amount of plasticizer, are highly sensitive to temperature. Once the processing temperature is too high, the material will be deformed, peeled off or foamed. In actual use, the manufacturer hopes that the activation temperature of the adhesive should be as low as possible. On the other hand, it is also a need for en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08G18/08C08G18/44C08G18/28C09J175/08C09J175/06C09J175/04
CPCC08G18/6618C08G18/0828C08G18/289C08G18/3206C08G18/3855C08G18/3893C08G18/4018C08G18/4202C08G18/4238C08G18/4277C08G18/44C08G18/48C08G18/4854C08G18/6651C08G18/6685C09J175/04C09J175/06C09J175/08
Inventor 李有刚杨芳谭雪梅向超
Owner 重庆中科力泰高分子材料有限公司
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