High-bearing low-density low-odor high-rebounding foam material and preparing method thereof

A foam material and low-density technology, which is applied in the field of polyurethane, can solve the problems of increasing the content of harmful substances in polyurethane foam materials, increasing raw material costs and process costs, and increasing odor and harmful gases, so as to reduce VOC harmful substances and odors and improve foam quality. Bearing capacity, effect of reducing foam density

Active Publication Date: 2015-09-02
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the contradiction between low density and high load-bearing, the traditional solution is to increase the amount of polymer polyol (POP) in the formula to improve the overall hardness and support strength of the foam, but the viscosity of polymer polyol is high, which is bound to Sacrificing the fluidity of the combined material and reducing the operability of the material will greatly increase the cost of raw materials and process costs; moreover, the polymer polyol is a polyether polyol modified by grafting of styrene and acrylonitrile, and the polymerized monomer Residues will increase the content of harmful substances in polyurethane foam, which will increase the odor and harmful gases released by polyurethane foam, making it difficult to meet the current requirements of low VOC and high environmental protection

Method used

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  • High-bearing low-density low-odor high-rebounding foam material and preparing method thereof
  • High-bearing low-density low-odor high-rebounding foam material and preparing method thereof
  • High-bearing low-density low-odor high-rebounding foam material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The high-resilience foam material with high load bearing, low density and low odor is prepared as follows:

[0031] A component

[0032]

[0033]

[0034] Group B is divided into:

[0035] TDI(80 / 20): 60

[0036] PM-200: 40

[0037] A component: Put the measured YEP-4700 and YNW-2800 into the reaction kettle at room temperature and stir evenly, then add the measured DEG, DEOA, DK-12, DC6070, H 2 O, A-1, A-33, C-225 and 141B, stir for 0.5h, take samples for foaming test, the foaming is normal, and store in barrels sealed.

[0038] Preparation of component B: Add measured amounts of TDI and PM-200 into the reaction kettle at room temperature, stir for 0.5 h, take a sample to detect NCO% = 41.4, and store in a sealed barrel.

[0039] When in use, mix components A and B at room temperature according to the mass ratio of A:B=1:0.44 and pour them into a mold to obtain a foam material.

Embodiment 2

[0041] The high-resilience foam material with high load bearing, low density and low odor is prepared as follows:

[0042] A component

[0043]

[0044] Group B is divided into:

[0045] TDI(80 / 20): 40

[0046] DG-5412: 60

[0047] Component A: Put the measured YEP-4700 and YNW-2800 into the reaction kettle at room temperature and stir evenly, then add the measured 1,4-BG, DEOA, DK-12, L-3150, H 2 O, A-1, A-33, P-225 and 141B, stir for 0.6h, take samples for foaming test, the foaming is normal, and store in barrels sealed.

[0048] Preparation of component B: Add the measured amount of TDI and DG-5412 into the reaction kettle at room temperature, stir for 0.6h, take a sample for detection of NCO%=35, and store in a sealed barrel.

[0049] When in use, mix components A and B at room temperature according to the mass ratio of A:B=1:0.5 and pour them into a mold to obtain a foam material.

Embodiment 3

[0051] The high-resilience foam material with high load bearing, low density and low odor is prepared as follows:

[0052] A component

[0053]

[0054] Group B is divided into:

[0055] TDI(80 / 20): 50

[0056] PM-200: 30

[0057] DG-5412: 20

[0058] Component A: Put the measured YEP-4700 and YNW-2800 into the reaction kettle at room temperature and stir evenly, then add the measured DPG, TEA, DK-12, DC6070, H 2 O, A-1, A-33, A-300 and 141B, stir for 0.8h, take samples for foaming test, the foaming is normal, and store in barrels sealed.

[0059] Preparation of component B: Add the measured amount of TDI, PM-200, and DG5412 into the reaction kettle at room temperature, stir for 0.8h, take a sample to detect NCO%=38.65, and store it in a sealed barrel.

[0060]When in use, mix components A and B at room temperature according to the mass ratio of A:B=1:0.52 and pour them into a mold to obtain a foam material.

[0061]

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Abstract

The invention belongs to the technical field of polyurethane, and particularly relates to a high-bearing low-density low-odor high-rebounding foam material and a preparing method of the foam material. The foam material is prepared from an ingredient A and an ingredient B according to a mass ratio of A:B=1:(0.4-0.6), wherein through being metered in parts by mass, the ingredient A consists 60 to 70 parts of polyether glycol A, 30 to 40 parts of polyether glycol B, 0.5 to 1 part of chain expanding agents, 1 to 5 parts of crosslinking agents, 3 to 5 parts of hole forming agents, 0.5 to 2.5 parts of uniform foaming agents, 2 to 6 parts of foaming agents and 0.4 to 2.5 parts of catalysts; the ingredient B is an isocyanate mixture. The independently developed high-functionality-degree and high-molecular-weight special polyether glycol is used as major raw materials for preparing the high-rebounding foam, so that the goals of reducing the foam density and improving the foam carrying capability are achieved; the use of the polymer polyol is avoided, so that the VOC (volatile organic compound) harmful substances and the odor are reduced; the requirements of the environment-friendly high-performance and high-rebounding foam are met. The preparing method is simple, and the operation is easy.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and specifically relates to a high-load-bearing, low-density, low-odor high-resilience foam material and a preparation method thereof. Background technique [0002] Polyurethane high-resilience foam materials have developed rapidly due to their excellent performance and convenient and fast molding process. Especially in recent years, with the rapid development of vehicles and other transportation tools, high-resilience foam seats, seat cushions and other products The demand has increased significantly. Traditional high-resilience foams are mostly produced with polyether polyols, polymer polyols and TDI as the main raw materials, and the products have good mechanical properties and foam bearing capacity. [0003] With the continuous advancement of technology, people's requirements for polyurethane foam continue to increase, and the foam is required to be lightweight, but still ensure high lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/76C08G18/66C08G101/00
CPCC08G18/4804C08G18/4829C08G18/6674C08G18/6677C08G18/7614C08G18/7657C08G2110/005
Inventor 刘军孙兆任王立停周玉波王玉
Owner SHANDONG INOV NEW MATERIALS CO LTD
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