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High performance polyurethane composite material and preparation method thereof

A composite material and polyurethane technology, applied in the field of polyurethane materials, can solve the problems of high free TDI content, achieve low VOC content, good mechanical properties, improve safety and environmental protection

Active Publication Date: 2019-02-15
VESACH FURNITURE & DECORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyurethane coatings generally have the problem of high free TDI content

Method used

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  • High performance polyurethane composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] As an embodiment of the preparation method of the high-performance polyurethane composite material described in the present invention, the preparation method of the high-performance polyurethane composite material described in this embodiment includes the following steps:

[0036] (1) take each component raw material according to the proportion;

[0037] Component A: 55 parts of hydroxyl polyurethane dispersion, 5 parts of modified silica sol, 1.2 parts of graphene, 12 parts of water, 0.8 parts of leveling agent, 0.2 parts of defoamer, 1.2 parts of thickener,

[0038] Wherein, the particle diameter of described graphene is 60nm;

[0039] The modified silica sol is polyethylene glycol diacrylate modified silica sol, and its preparation method is: mixing silica sol and polyethylene glycol diacrylate aqueous solution in a weight ratio of 1:0.08 , stirring overnight at 30° C. to 40° C. to obtain the modified silica sol, wherein the polyethylene glycol diacrylate aqueous so...

Embodiment 2

[0046] The preparation method of the high-performance polyurethane composite material described in this example is basically the same as Example 1, the difference is that the formula of this example is:

[0047] Component A: 57 parts of hydroxyl polyurethane dispersion, 8 parts of modified silica sol, 2.5 parts of graphene, 12 parts of water, 0.8 parts of leveling agent, 0.2 parts of defoaming agent, and 1.2 parts of thickener.

Embodiment 3

[0049] The preparation method of the high-performance polyurethane composite material described in this embodiment is basically the same as that of Example 1, the difference is that in the formula of this embodiment:

[0050] Component A: 60 parts of hydroxyl polyurethane dispersion, 7 parts of modified silica sol, 2 parts of graphene, 12 parts of water, 0.8 parts of leveling agent, 0.2 parts of defoaming agent, and 1.2 parts of thickener.

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Abstract

The invention discloses a high performance polyurethane composite material and a preparation method thereof. The high performance polyurethane composite material is prepared from components A and B inparts by weight. The component A is prepared from the following components in parts by weight: 55-60 parts of a hydroxyl polyurethane dispersoid, 4-8 parts of a modified silicon dioxide sol, 0.3-3 parts of graphene, 10-14 parts of water, 0.6-0.9 part of a flatting agent, 0.1-0.4 part of a defoamer and 0.5-1.5 parts of a thickener. The component B is prepared from 10-16 parts of a polyurethane curing agent. The high performance polyurethane composite material prepared by the invention is safe and non-toxic, low in construction smell and low in VOC content, meets the environment-friendly demand, can be cured at low temperature, and is good in compatibility of the components. A formed film has good hardness, mechanical property and water resistance, so that the high performance polyurethanecomposite material is quite suitable for furniture coatings.

Description

technical field [0001] The invention relates to the technical field of polyurethane materials, in particular to a high-performance polyurethane composite material and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of living standards, people's awareness of environmental pollution in the living room continues to increase. However, due to factors such as furniture and decoration, indoor air pollution is still one of the main killers that pollute human health. Formaldehyde, benzene, and ammonia pollution Exceeding the standard has seriously affected people's health, and it is difficult to meet environmental protection requirements. A large number of polyester resins, polyurethanes, toluene and other solvents are used in furniture coatings on the market, resulting in the release of toxic gases in furniture coatings, which poses a serious threat to people's health. [0003] Polyurethane coatings are mainly two-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/62C09D7/61C09D7/20C08G18/75C08G18/71
CPCC08G18/715C08G18/755C08L2205/03C09D175/04C09D7/20C09D7/61C09D7/62C09D7/67C08L83/04C08K9/08C08K3/36C08K3/042
Inventor 黄茂强黄茂荣余洪涛林耀裕王艾陈晖霓
Owner VESACH FURNITURE & DECORATION
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