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High-resilience sponge and preparing method

A technology of high resilience and sponge, applied in the field of sponge, can solve the problems of easy tearing, poor quality of high resilience sponge, short service life, etc., and achieve the effect of not easy to tear, long service life and good rebound performance

Inactive Publication Date: 2019-07-05
东莞市腾崴塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide a high-resilience sponge and a preparation method for the above-mentioned defects in the prior art, so as to solve the problems of poor quality, short service life and easy tearing of the high-resilience sponge in the related art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-resilience sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 32 parts of high-resilience polyether, 45 parts of high-resilience polymer polyol, 3 parts of hydrophilic polyether 10 parts of PO polyether copolymer, 10 parts of synthetic polyester ether, 0.6 parts of high resilience silicone oil, 0.2 parts of temperature-sensitive catalyst, 1.2 parts of crosslinking agent, 53 parts of isocyanate TDI80 and polymeric MDI mixture and foaming agent 3 parts; Among them, the original density of the raw material is 30kg / m 3 , the foaming index of the high-resilience sponge is 1.25; the high-resilience polyether is a sorbitol-based polyether polyol with a hydroxyl value of 28mgKOH / g, preferably polyether 330N; the high-resilience polymer polyol has a hydroxyl value of 20mgKOH / g, the solid content is 45%, and the high resilience polymer polyol is preferably GPOP-H45; the hydrophilic polyether is glycerin as the ini...

Embodiment 2

[0028] A high-resilience sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 32 parts of high-resilience polyether, 45 parts of high-resilience polymer polyol, 3 parts of hydrophilic polyether 10 parts of PO polyether copolymer, 10 parts of synthetic polyester ether, 0.6 parts of high resilience silicone oil, 0.2 parts of temperature-sensitive catalyst, 1.2 parts of crosslinking agent, 50 parts of isocyanate TDI80 and polymeric MDI mixture and foaming agent 3 parts; Among them, the original density of the raw material is 33kg / m 3 , the foaming index of the high-resilience sponge is 1.25; the high-resilience polyether is a sorbitol-based polyether polyol with a hydroxyl value of 28mgKOH / g, preferably polyether 330N; the high-resilience polymer polyol has a hydroxyl value of 20mgKOH / g, the solid content is 45%, and the high resilience polymer polyol is preferably GPOP-H45; the hydrophilic polyether is glycerin as the ini...

Embodiment 3

[0031] A high-resilience sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 32 parts of high-resilience polyether, 45 parts of high-resilience polymer polyol, 3 parts of hydrophilic polyether 10 parts, all-PO polyether copolymer 10 parts, synthetic polyester ether 10 parts, high resilience silicone oil 0.6 parts, temperature-sensitive catalyst 0.2 parts, crosslinking agent 1.2 parts, isocyanate TDI80 and polymeric MDI mixture 47.4 parts and foaming agent 2.8 parts; Among them, the original density of raw materials is 35kg / m 3 , the foaming index of the high-resilience sponge is 1.25; the high-resilience polyether is a sorbitol-based polyether polyol with a hydroxyl value of 28mgKOH / g, preferably polyether 330N; the high-resilience polymer polyol has a hydroxyl value of 20mgKOH / g, the solid content is 45%, and the high resilience polymer polyol is preferably GPOP-H45; the hydrophilic polyether is glycerin as the initia...

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Abstract

The invention discloses high-resilience sponge and a preparing method. The high-resilience sponge is obtained through reaction of raw materials which include, by weight, 30-40 parts of high-resiliencepolyether, 40-50 parts of high-resilience polypolyols, 2-5 parts of hydrophilic polyether, 10-15 parts of full PO polyether copolymers, 10-15 parts of synthesized polyester ether, 0.5-0.8 part of high-resilience silicone oil, 0.1-0.2 part of a temperature sensitive catalyst, 0.5-1.7 parts of a crosslinking agent, 47.4-53 parts of mixtures of isocyanate TDI80 and polyMDI and 2.8-3 parts of a foaming agent. According to the prepared sponge, at normal temperature, the resilience rate is 69-72, the resilience is good, the hardness of the sponge is within 110-130 N, and the sponge is not easily torn and long in service life.

Description

technical field [0001] The invention relates to the technical field of sponges, in particular to a high-resilience sponge and a preparation method thereof. Background technique [0002] Sponge is a kind of polyurethane foam, which belongs to soft polyurethane foam. Because of the porous honeycomb structure, it has excellent softness, elasticity, water absorption, and water resistance, and is widely used in various industries such as sofas, mattresses, clothing, and flexible packaging. [0003] As a widely used sponge, high-resilience sponge will produce different supporting force under different deformation states when it is compressed. Therefore, sofas, cushions and mattresses made of high-resilience sponge can provide better comfort. High degree, that is, a more ideal comfort factor, is an ideal material for high-end car seats, sofa seats and office seats. [0004] However, the existing high-resilience sponges are relatively fragile, and their properties such as fire res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/42C08G18/32C08G18/18C08J9/08C08G101/00
CPCC08G18/2063C08G18/3206C08G18/3228C08G18/3281C08G18/4277C08G18/4804C08G18/4854C08G18/6611C08G18/6618C08G18/7614C08G18/7671C08G2110/0025C08G2110/0083
Inventor 丁向前
Owner 东莞市腾崴塑胶制品有限公司
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