High-resilience polyurethane foam plastic with high comfort level, low hysteresis loss and low VOC, and preparation method and application thereof

A foam and comfort technology, applied in the field of high resilience polyurethane foam and its preparation, can solve the problems of low hysteresis loss, poor comfort, and low VOC, and achieve low hysteresis loss, high comfort, and low VOC Effect

Active Publication Date: 2020-02-25
JIANGSU CHANGHUA POLYURETHANE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the technical problems to be solved by the present invention is the poor comfort of polyurethane foam in the prior art at low density, providing a high-resilience foam with high comfort and low hysteresis loss at low density. Under the density (45~55kg / m 3 ), can still maintain a higher level of comfort (compression hardness 5-9kPa), lower hysteresis loss (13-17%), and has the advantages of low odor and low VOC; two of the technical problems to be solved by the present invention are Provide a preparation method corresponding to one of the technical problems to be solved; the third technical problem to be solved by the present invention is to provide an application corresponding to one of the technical problems to be solved

Method used

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  • High-resilience polyurethane foam plastic with high comfort level, low hysteresis loss and low VOC, and preparation method and application thereof
  • High-resilience polyurethane foam plastic with high comfort level, low hysteresis loss and low VOC, and preparation method and application thereof
  • High-resilience polyurethane foam plastic with high comfort level, low hysteresis loss and low VOC, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of component A: In container A, according to parts by weight, add polyether polyol A1.1: 60 parts, polymer polyol A2.2: 40 parts, diethanolamine: 2 parts, Z- 131: 0.3 parts, DPA: 0.3 parts, M-7770LV: 0.5 parts, M-7715LV: 0.5 parts; water: 2.5 parts, CHK-350A: 2 parts, stirred for 10 minutes to prepare component A;

[0041] (2) Preparation of component B: In container B, add Lupranate T-80: 70 parts, Lupranante M20S: 30 parts, and stir to obtain component B with an isocyanate content of 43.8%.

[0042] (3) Cast component A and component B into the mold through a high-pressure or low-pressure foaming machine, set the mold temperature at 60°C, open the mold for 240 seconds and take it out from the mold to obtain high comfort, low hysteresis loss and Low-VOC high-resilience polyurethane foam, wherein the weight ratio of component A to component B is 100:40, and its product performance test data are shown in Table 5.

Embodiment 2 to Embodiment 5

[0044] The experiments in Example 2 to Example 5 were carried out according to the steps of Example 1. The only difference was that the types of raw materials, the ratio of raw materials, the reaction time and the temperature were different. See Table 3 for details. High comfort, low hysteresis loss and Table 5 shows the product performance test data of low-VOC high-resilience polyurethane foam.

[0045] The parts by weight of raw materials of each component in table 3 embodiment 1 to embodiment 5

[0046]

[0047]

Embodiment 6 to 8

[0049] The steps of Examples 6 to 8 are carried out, and the only difference is that the types of raw materials, the ratio of raw materials, the reaction time and the temperature are different. See Table 4 for details. The prepared high-resilience polyurethane with high comfort, low hysteresis and low VOC The performance test data of foamed plastic products are shown in Table 5.

[0050] The parts by weight of raw materials of each component in table 4 embodiment 6 to embodiment 8 and comparative examples 1 to 3

[0051]

[0052]

[0053]

[0054] The performance detection data of the high resilience polyurethane foam plastics of the high comfort of table 5 embodiment 1 to 8 and comparative example 1 to 3 preparation, low hysteresis loss and low VOC

[0055]

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Abstract

The invention relates to a high-resilience polyurethane foam plastic with high comfort level, low hysteresis loss and low VOC, and a preparation method and an application thereof. The problems of lowcomfort level, high hysteresis loss and high VOC of polyurethane foam plastics in the prior art are mainly solved. The high-resilience polyurethane foam plastic is composed of a component A and a component B, and a weight ratio of the component A to the component B is 100:(30-55), wherein the component A comprises, by weight, 50-70 parts of polyether polyol A1, 30-50 parts of polymer polyol A2, 0.5-3 parts of a cross-linking agent, 0.5-2.5 parts of a non-volatile reactive catalyst, 0.3-1.5 parts of a low-atomization organic silicon foam stabilizer, 1.5-2.5 parts of water and 0.5-5 parts of anopening agent; and the component B is a mixture of toluene diisocynate and diphenylmethane diisocyanate. The polyurethane foam plastic prepared in the invention has the advantages of high comfort level, low hysteresis loss, low odor and low VOC, achieves good technical effects, and can be applied to vehicle seats and office furniture.

Description

technical field [0001] The invention relates to a preparation method and application of foamed plastics, in particular to high resilience polyurethane foamed plastics with high comfort, low hysteresis loss and low VOC and its preparation method and application. Background technique [0002] High-resilience polyurethane foam is a kind of polyurethane foam material. It is light and soft, has high resilience and excellent shock absorption and cushioning properties. It is currently widely used in vehicles, high-speed rail, aircraft and other vehicles. At present, lightweight, safety and environmental protection, and comfort have become new trends in the development of polyurethane foam technology for automotive seats. There are many indicators to measure the performance of seat foam. Among them, hysteresis loss is a key indicator that can reflect both the safety and comfort of the seat and the durability of the foam. It has attracted the attention of major automobile OEMs, and g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/79C08G18/76C08G18/66C08G18/48C08G18/40C08G18/32C08G101/00
CPCC08G18/3275C08G18/3281C08G18/4009C08G18/48C08G18/4804C08G18/6688C08G18/7614C08G18/7671C08G18/794C08G2110/0083
Inventor 卞强倪德杰刘元广万浩远祁青海陈凤秋
Owner JIANGSU CHANGHUA POLYURETHANE SCI & TECH
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