Polyurethane composition, and polyurethane foam body and applications thereof

A polyurethane foam and composition technology, applied in the field of polyurethane foam, can solve the problems of car seat comfort requirements and odor improvement without consideration and improvement

Active Publication Date: 2019-06-21
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the various comfort requirements and odor improv

Method used

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  • Polyurethane composition, and polyurethane foam body and applications thereof
  • Polyurethane composition, and polyurethane foam body and applications thereof
  • Polyurethane composition, and polyurethane foam body and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0073] Polyurethane foam molding was carried out according to the raw materials and dosage listed in Table 1.

[0074] According to Table 1, stir each component of component A evenly. Add 100 parts by weight of component A and the amount of component B shown in Table 1 into a high-pressure foaming machine, perform high-pressure mixing at 12MPa, and then pour into a mold at 60°C for foaming.

[0075] The foam was taken out and allowed to stand for aging for 12 hours to obtain a polyurethane foam.

[0076] The polyurethane foam was tested for odor, comfort and other properties, and the results are shown in Table 2.

[0077] Table 1

[0078]

[0079]

[0080] Table 2

[0081]

[0082]

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Abstract

The present invention relates to the field of polyurethane foams for vehicle seats, and discloses a polyurethane composition, and a polyurethane foam body and applications thereof. The polyurethane composition comprises 100 parts by weight of a component A and 40-60 parts by weight of a component B, wherein the component A comprises: 70-90 parts by weight of polyether polyol, 10-30 parts by weightof a polymer polyol, 0.05-0.3 part by weight of a catalyst I, 0.1-1 part by weight of a catalyst II, 0.6-1.5 parts by weight of a surfactant, 1-2 parts by weight of a cross-linking agent, and 2-5 parts by weight of water, the component B is an isocyanate component, the polyether polyol is polyoxypropylene ether triol, the polyether polyol has an acid value of less than 0.03 mgKOH/g and a chrominance APHA of less than 15, the catalyst I contains bis(dimethylaminoethyl)ether, and has an amine value of 5.7-6.2 meq/g, and the catalyst II contains triethylenediamine, and has an amine value of 8.5-9 meq/g. According to the present invention, the polyurethane foam body can simultaneously meet low odor and multiple comfort indexes.

Description

technical field [0001] The invention relates to the field of polyurethane foams used in vehicle seats, in particular to polyurethane compositions, polyurethane foams and applications thereof. Background technique [0002] With the improvement of people's living standards, consumers have put forward higher requirements for the smell and comfort of car seats. At present, the smell and comfort of high resilience foam for seats can no longer meet the existing requirements. [0003] CN101987883A discloses a low-density all-MDI-based high-resilience polyurethane foam, including a polyol mixture component A and a modified MDI component B, wherein the component A is a polyol mixture in parts by weight Including 50-100 parts of polyether polyol with molecular weight of 1000-10000 and functionality of 2-4; 0-50 parts of polymer polyol; 1-5 parts of crosslinking agent; 1.5-3.5 parts of non-volatile Catalyst and / or reactive catalyst; 0.3-1.5 parts of organosilicon foam stabilizer; 2.5-...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/76C08G18/78
Inventor 刘双任张敏林信平陈石养卢强基
Owner BYD CO LTD
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