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High-density polyurethane foam

A polyurethane foam and high-density technology, which is applied in the field of foam materials, can solve the problems of aging resistance, flame retardancy and performance stability to be further improved, and achieve the effect of easy large-scale production, easy operation and high density

Active Publication Date: 2022-02-18
深圳市丰润电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its aging resistance, flame retardancy and performance stability need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-density polyurethane foam, characterized in that it is made of the following components in parts by weight: 55 parts of amino-terminated hyperbranched polyurethane, 2,3-quinoline dicarboxylic acid / 2,4-diamino-6 -8 parts of diallylamino-1,3,5-triazine polycondensate, 3 parts of 1,2-epoxy-4-vinylcyclohexane, 0.5 parts of foam stabilizer, 5 parts of blowing agent, initiator 1 serving.

[0024] The initiator is cumene hydroperoxide; the foam stabilizer is foam stabilizer Y-10366; and the blowing agent is dichloromethane.

[0025] The preparation method of the 2,3-quinoline dicarboxylic acid / 2,4-diamino-6-diallylamino-1,3,5-triazine polycondensate comprises the following steps: 2,3-quinoline Diformic acid, 2,4-diamino-6-diallylamino-1,3,5-triazine, catalyst, and high-boiling point solvent are mixed evenly and then added to the high-pressure reactor, and the reactor is replaced with nitrogen, and then heated at 190 ℃, pressure kept at 1.0MPa, stirring and reacting fo...

Embodiment 2

[0029] A high-density polyurethane foam, characterized in that it is made of the following components in parts by weight: 58 parts of amino-terminated hyperbranched polyurethane, 2,3-quinoline dicarboxylic acid / 2,4-diamino-6 -10 parts of diallylamino-1,3,5-triazine polycondensate, 3.5 parts of 1,2-epoxy-4-vinylcyclohexane, 0.7 parts of foam stabilizer, 6.5 parts of blowing agent, initiator 1.2 servings.

[0030] The initiator is tert-butyl hydroperoxide; the foam stabilizer is gelatin; and the foaming agent is azodicarbonamide foaming agent AC.

[0031] The preparation method of the 2,3-quinoline dicarboxylic acid / 2,4-diamino-6-diallylamino-1,3,5-triazine polycondensate comprises the following steps: 2,3-quinoline Diformic acid, 2,4-diamino-6-diallylamino-1,3,5-triazine, catalyst, and high-boiling point solvent are mixed evenly and then added to the high-pressure reactor, and the reactor is replaced with an inert gas, and then the 200°C, the pressure was kept at 1.2MPa, and ...

Embodiment 3

[0035] A high-density polyurethane foam, characterized in that it is made of the following components in parts by weight: 60 parts of amino-terminated hyperbranched polyurethane, 2,3-quinoline dicarboxylic acid / 2,4-diamino-6 -13 parts of diallylamino-1,3,5-triazine polycondensate, 4 parts of 1,2-epoxy-4-vinylcyclohexane, 0.8 parts of foam stabilizer, 8 parts of blowing agent, initiator 1.5 servings.

[0036] The initiator is di-tert-butyl peroxide; the foam stabilizer is foam stabilizer Y-10366; and the foaming agent is potassium oleate.

[0037] The preparation method of the 2,3-quinoline dicarboxylic acid / 2,4-diamino-6-diallylamino-1,3,5-triazine polycondensate comprises the following steps: 2,3-quinoline Diformic acid, 2,4-diamino-6-diallylamino-1,3,5-triazine, catalyst, and high-boiling point solvent are mixed evenly and then added to the high-pressure reactor, and the reactor is replaced with an inert gas, and then the 210°C, keep the pressure at 1.6MPa, stir and react ...

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Abstract

The invention discloses a high density polyurethane foam. The polyurethane foam is prepared from the following components in parts by weight: 55-65 parts of amino-terminated hyperbranched polyurethane, 8-16 parts of a 2,3-quinolindicarboxylic acid / 2,4-diamino-6-diallylamino-1,3,5-triazine polycondensate, 3-5 parts of 1,2-epoxy-4-vinyl cyclohexane, 0.5-1 part of a foam stabilizer, 5-10 parts of a foaming agent and 1-2 parts of an initiator. The invention also discloses a preparation method of the high-density polyurethane foam. The high-density polyurethane foam disclosed by the invention is high in density, sufficient in rebound resilience and compression resistance, and good in durability, stability, aging resistance and flame retardance.

Description

technical field [0001] The invention belongs to the technical field of foam materials, in particular to a high-density polyurethane foam and a preparation method thereof. Background technique [0002] With the development of manufacturing production technology, people have higher and higher quality requirements for daily necessities. Daily necessities are often touched in daily life, and their quality not only directly determines the service life, but also determines the comfort of use, and more importantly, it can also affect the health of users. Because of its elasticity and light weight, foam is widely used as filling material for daily necessities. It can play a role in heat preservation and cushioning. Therefore, the quality of foam affects the quality of daily necessities to a certain extent. [0003] Polyurethane foam material is an organic polymer material containing several urethane chain segments obtained by the reaction of polyisocyanate and polyol. These materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C08J9/10C08L75/04C08G83/00C08G18/83
CPCC08J9/145C08J9/103C08J9/142C08G83/006C08G18/833C08G18/831C08J2375/04C08J2203/04C08J2203/142C08J2203/204
Inventor 聂佳丽
Owner 深圳市丰润电子材料有限公司
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