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Polyurethane transparent skin material and preparing method thereof

A skin material, polyurethane technology, applied in the field of polyurethane products, can solve the problems of difficult operation, high hardness, high temperature processing, etc., and achieve the effect of convenient and simple operation, high toughness and high transparency

Inactive Publication Date: 2016-01-20
ZIBO DEXIN LIANBANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many existing plastic materials (such as PC) can meet the requirements of transparency but are very hard, require high temperature processing, and are difficult to operate.

Method used

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  • Polyurethane transparent skin material and preparing method thereof
  • Polyurethane transparent skin material and preparing method thereof
  • Polyurethane transparent skin material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The composition of raw materials is as follows:

[0030] A component:

[0031] Polyether polyol DDL-4000D60kg

[0032] Polyisocyanate T-1005kg;

[0033] B component:

[0034] Polyether polyol DDL-3000D10kg

[0035] Ultraviolet absorber UV-5310.01kg

[0036] Diethyltoluenediamine 6kg.

[0037] The preparation method is as follows:

[0038] (1) Preparation of component A: Heat polyether polyol DDL-4000D to 110°C for 2 hours in vacuum dehydration, cool down to below 50°C and add polyisocyanate, heat up to 80°C and react for 2 hours to obtain a prepolymer. The NCO% of the polymer is 2%, the temperature is lowered to below 50°C, stirred evenly, and sealed for later use;

[0039] (2) Preparation of component B: Mix and stir polyether polyol DDL-3000D, ultraviolet absorber and diethyltoluenediamine for 20 minutes and seal it for later use;

[0040] (3) Mix and stir components A and B for 10 seconds, then pour them into a mold coated with a release agent, heat and press...

Embodiment 2

[0045] The composition of raw materials is as follows:

[0046] A component:

[0047] Polyether polyol DDL-4000D90kg

[0048] Polyisocyanate T-100 20kg;

[0049] B component:

[0050] Polyether polyol DDL-3000D50kg

[0051] Ultraviolet absorber UV-5310.2kg

[0052] Diethyltoluenediamine 20kg.

[0053] The preparation method is as follows:

[0054] (1) Preparation of component A: heat up polyether polyol DDL-4000D to 120°C for 2.5 hours in vacuum dehydration, cool down to below 50°C and add polyisocyanate, heat up to 85°C and react for 3 hours to obtain a prepolymer. The NCO% of the polymer is 7%, the temperature is lowered to below 50°C, stirred evenly, and sealed for later use;

[0055] (2) Preparation of component B: Mix and stir polyether polyol DDL-3000D, ultraviolet absorber and diethyltoluenediamine for 25 minutes and seal it for later use;

[0056] (3) Mix and stir components A and B for 15 seconds, then pour them into a mold coated with release agent, heat and ...

Embodiment 3

[0061] The composition of raw materials is as follows:

[0062] A component:

[0063] Polyether polyol DDL-4000D80kg

[0064] Polyisocyanate T-100 10kg;

[0065] B component:

[0066] Polyether polyol DDL-3000D30kg

[0067] Ultraviolet absorber UV-5310.1kg

[0068] Diethyltoluenediamine 10kg.

[0069] The preparation method is as follows:

[0070] (1) Preparation of component A: heat up polyether polyol DDL-4000D to 115°C for 2.3 hours in vacuum dehydration, cool down to below 50°C and add polyisocyanate, heat up to 82°C and react for 2.5 hours to obtain a prepolymer. The NCO% of the polymer is 5%, and the temperature is lowered to below 50°C, stirred evenly, and sealed for later use;

[0071] (2) Preparation of component B: Mix and stir polyether polyol DDL-3000D, ultraviolet absorber and diethyltoluenediamine for 23 minutes and seal it for later use;

[0072] (3) Mix and stir components A and B for 12 seconds, then pour them into a mold coated with release agent, hea...

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Abstract

The invention belongs to the technical field of polyurethane products and particularly relates to a polyurethane transparent skin material and a preparing method thereof. The polyurethane transparent skin material is prepared from a component A and a component B. The component A is prepared from, by weight, 60-90 parts of polyether polyol DDL-4000D and 5-20 parts of polyisocyanates, and the component B is prepared from, by weight 10-50 parts of polyether polyol DDL-3000D, 0.01-0.2 parts of ultraviolet light absorber and 6-20 parts of diethyl methyl benzene diamine. The polyurethane transparent skin material is low in cost and convenient and easy to operate; the prepared product is formed at a time, and thus the labor cost is greatly reduced; the product is good in packaging performance, processing and clipping performance and light transmission and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of polyurethane products, and in particular relates to a polyurethane transparent skin material and a preparation method thereof. Background technique [0002] The skin protection of high-end valuables, such as mahogany furniture with collection value placed at home, is often scratched by hard objects (such as keys) in contact with it or bumped unintentionally by children, which will cause damage to high-end furniture. Appreciation space. In addition, there are many valuables that need a layer of skin protection without affecting their appearance to avoid oxidation or bumps when exposed to oxygen. However, many existing plastic materials (such as PC) can meet the requirement of transparency but are very hard, require high temperature processing, and are difficult to operate. Contents of the invention [0003] The purpose of the present invention is to provide a polyurethane transparent skin material, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/10C08G18/48C08G18/32
CPCC08G18/10C08G18/324C08G18/4825C08G18/6685
Inventor 耿佃勇马炎董伟王帅
Owner ZIBO DEXIN LIANBANG CHEM IND
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