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Environment-friendly solvent-free polyurethane material, and preparation method thereof

A solvent-free polyurethane and environment-friendly technology, which is applied in the field of environment-friendly solvent-free polyurethane material and its preparation, can solve the problems of high price, environmental pollution, solvent-free, etc., and achieve low pollution, high surface smoothness, and strong mechanical properties Effect

Inactive Publication Date: 2017-12-08
JIANGSU BAOZE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the current solvent-free synthetic leather production process uses solvent-free two-component polyurethane to form a foam layer, the surface layer still uses water-based PU or oil-based PU, which cannot be completely solvent-free, and there are still environmental pollution and high prices. defect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The environmentally friendly solvent-free polyurethane material is prepared from the following components in proportions: 0.1 parts by weight of leveling agent, 10 parts by weight of isocyanate, 63 parts by weight of polyester polyol, and 17 parts by weight of polyether polyol. The number average molecular weight of the polyether polyol is 4000 g / mol.

[0022] Weigh each component according to the above weight ratio, add the raw materials in the order of polyester polyol, polyether polyol, isocyanate, and leveling agent, and use a variable speed mixer to stir the raw materials from low speed to high speed to make them evenly mixed , To obtain the environmentally friendly solvent-free polyurethane material of the present invention.

[0023] The material was coated on the substrate to measure its tensile strength according to QB / T 1670-92, its elongation at break was measured according to FZ / T 60005-1991, and its tear strength was measured according to GB / T 12829-2006. The re...

Embodiment 2

[0025] The environmentally friendly solvent-free polyurethane material is prepared from the following components in a proportion: 2.5 parts by weight of leveling agent, 13 parts by weight of isocyanate, 66 parts by weight of polyester polyol, and 17 parts by weight of polyether polyol. The number average molecular weight of the polyether polyol is 3000 g / mol.

[0026] Weigh each component according to the above weight ratio, add the raw materials in the order of polyester polyol, polyether polyol, isocyanate, and leveling agent, and use a variable speed mixer to stir the raw materials from low speed to high speed to make them evenly mixed , To obtain the environmentally friendly solvent-free polyurethane material of the present invention.

[0027] The material was coated on the substrate to measure its tensile strength according to QB / T 1670-92, its elongation at break was measured according to FZ / T 60005-1991, and its tear strength was measured according to GB / T 12829-2006. The r...

Embodiment 3

[0029] The environmentally friendly solvent-free polyurethane material is prepared from the following components in a proportion: 5 parts by weight of leveling agent, 15 parts by weight of isocyanate, 66 parts by weight of polyester polyol, and 24 parts by weight of polyether polyol. The number average molecular weight of the polyether polyol is 1000 g / mol.

[0030] Weigh each component according to the above weight ratio, add the raw materials in the order of polyester polyol, polyether polyol, isocyanate, and leveling agent, and use a variable speed mixer to stir the raw materials from low speed to high speed to make them evenly mixed , To obtain the environmentally friendly solvent-free polyurethane material of the present invention.

[0031] The material was coated on the substrate to measure its tensile strength according to QB / T 1670-92, its elongation at break was measured according to FZ / T 60005-1991, and its tear strength was measured according to GB / T 12829-2006. The res...

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Abstract

The invention relates to an environment-friendly solvent-free polyurethane material. The environment-friendly solvent-free polyurethane material is prepared from an auxiliary agent, isocyanate, and a polyol compound. The invention also provides a method used for preparing the environment-friendly solvent-free polyurethane material. The method is capable of reducing pollution caused in production process, is more friendly to the environment. The environment-friendly solvent-free polyurethane material is better in surface flatness, and excellent in mechanical properties and moisture permeability.

Description

Technical field [0001] The invention relates to a polyurethane elastomer material, in particular to an environmentally friendly solvent-free polyurethane material and a preparation method thereof. Background technique [0002] Compared with traditional synthetic leather production technology, solvent-free synthetic leather production technology does not require solvents, so the technology brings less pollution and is relatively environmentally friendly. Solvent-free synthetic leather production technology has become one of the main development directions of synthetic leather in the future. However, although the current solvent-free synthetic leather production process uses solvent-free two-component polyurethane to form the foam layer, its surface layer still uses water-based PU or oily PU, which cannot be completely solvent-free, and still has environmental pollution and high prices. defect. Summary of the invention [0003] In order to solve the above-mentioned problems and de...

Claims

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Application Information

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IPC IPC(8): C08G18/42C08G18/48C08G18/66C08G18/76C08G18/32
CPCC08G18/3206C08G18/4018C08G18/42C08G18/48C08G18/6607C08G18/7614
Inventor 陈勇刚
Owner JIANGSU BAOZE POLYMER MATERIAL