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Soft PU foamed plastic and preparation method thereof

A foam plastic, soft technology, applied in the field of foam materials

Inactive Publication Date: 2014-04-09
NANTONG REPAIR AIR CHEM BIOENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current commercially available flexible polyurethane foam can no longer meet the requirements of actual use, so it is necessary to develop new flexible polyurethane foam with superior performance

Method used

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  • Soft PU foamed plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A kind of flexible PU foam plastics, comprising by weight components: 80 parts of PU, 70 parts of trihydroxy polyether, 20 parts of isocyanate, 1 part of emulsified silicone oil, 0.2 part of tertiary amine, 15 parts of toluene diisocyanate, and 1 part of foam stabilizer , 3 parts of foaming agent TCEP, 3 parts of water.

[0013] Above-mentioned soft PU foamed plastics is prepared according to the following steps:

[0014] (1) Weigh each component according to parts by weight;

[0015] (2) Stir and mix PU, trihydroxypolyether, toluene diisocyanate, isocyanate and emulsified silicone oil in a mixer, add tertiary amine, foam stabilizer, foaming agent TCEP and water after mixing and foam through the foaming machine , The foaming temperature is 25°C.

Embodiment 2

[0017] A kind of flexible PU foam plastics, comprising by weight components: 86 parts of PU, 73 parts of trihydroxypolyether, 25 parts of isocyanate, 2 parts of emulsified silicone oil, 0.3 part of tertiary amine, 18 parts of toluene diisocyanate, and 2 parts of foam stabilizer , 4 parts of foaming agent TCEP, 4 parts of water.

[0018] Above-mentioned soft PU foamed plastics is prepared according to the following steps:

[0019] (1) Weigh each component according to parts by weight;

[0020] (2) Stir and mix PU, trihydroxypolyether, toluene diisocyanate, isocyanate and emulsified silicone oil in a mixer, add tertiary amine, foam stabilizer, foaming agent TCEP and water after mixing and foam through the foaming machine , The foaming temperature is 28°C.

Embodiment 3

[0022] A kind of flexible PU foam plastics, comprising by weight components: 89 parts of PU, 75 parts of trihydroxy polyether, 26 parts of isocyanate, 3 parts of emulsified silicone oil, 0.4 part of tertiary amine, 20 parts of toluene diisocyanate, and 3 parts of foam stabilizer , 5 parts of foaming agent TCEP, 5 parts of water.

[0023] Above-mentioned soft PU foamed plastics is prepared according to the following steps:

[0024] (1) Weigh each component according to parts by weight;

[0025] (2) Stir and mix PU, trihydroxypolyether, toluene diisocyanate, isocyanate and emulsified silicone oil in a mixer, add tertiary amine, foam stabilizer, foaming agent TCEP and water after mixing and foam through the foaming machine , The foaming temperature is 35°C.

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Abstract

The invention discloses a soft PU foamed plastic and a preparation method thereof. The soft PU foamed plastic comprises, by weight, 80-100 parts of PU, 70-80 parts of trihydroxy polyether, 20-30 parts of isocyanate, 1-3 parts of emulsified silicone oil, 0.2-0.6 part of tertiary amine, 15-30 parts of toluene diisocynate, 1-5 parts of a foam stabilizer, 3-8 parts of a foaming agent TCEP, and 3-8 parts of water. The preparation method includes: stirring and mixing PU, trihydroxy polyether, toluene diisocynate, isocyanate and emulsified silicone oil in a mixer, and adding tertiary amine, the foam stabilizer, the foaming agent TCEP and water to conduct foaming through a foaming machine at 25-40DEG C. The soft PU foamed plastic is determined that its performance reaches a very good level, thus being suitable for promotion.

Description

technical field [0001] The invention belongs to the technical field of foam materials, and in particular relates to a soft PU foam plastic and a preparation method thereof. Background technique [0002] Flexible polyurethane foam refers to a type of flexible polyurethane foam with certain elasticity, and it is the most widely used polyurethane product. The cell structure of polyurethane flexible foam is mostly open. Generally, it has low density, good elastic recovery, sound absorption, breathability, heat preservation and other properties. It is mainly used as furniture cushion material, vehicle seat cushion material, and various soft cushion laminated composite materials. Soft foam is also used in industry and civil use. Used as filter material, sound insulation material, shockproof material, decoration material, packaging material and heat insulation material, etc. The currently commercially available flexible polyurethane foams can no longer meet the requirements of pr...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08J9/04C08J9/08C08L75/04C08L75/08
CPCC08G18/7614C08G18/4829C08G2101/00C08J9/04C08J9/08C08J2203/10C08J2203/18
Inventor 姚炎华朱鹏葛亮刘晓磊奚年英
Owner NANTONG REPAIR AIR CHEM BIOENG
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