Polyurethane memory foam with superior anti-yellowing performance

A memory foam and anti-yellowing technology, applied in the field of polyurethane sponge, can solve the problems of easy oxidation, anti-light performance, easy yellowing, easy aging, etc., and achieve excellent anti-oxidation, reduce pollution, and reduce environmental hazards.

Inactive Publication Date: 2012-03-28
胡志刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the easy yellowing of polyurethane memory foam in the prior art (mainly due to easy aging, easy oxidation and poor light resistance ) defects, to provide a polyurethane memory foam with excellent anti-yellowing properties, this polyurethane memory foam has good anti-yellowing properties such as

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1, the polyurethane memory foam with excellent anti-yellowing performance described in this embodiment, it is made by the raw material reaction foaming of following weight fraction:

[0051] Polyether polyol 5631 40

[0052] Polyether polyol MN700 60

[0053] Isophorone diisocyanate 50

[0054] water 3

[0055] L-580 (silicone oil) 0.8

[0056] L-626 (silicone oil) 1.2

[0057] Pentamethyldiethylenetriamine (catalyst) 0.4

[0058] Pentamethyldipropylenetriamine (catalyst) 0.6

[0059] Zirconium acetylacetonate (catalyst) 0.1

[0060] K383 (stabilizer) 1.5

[0061] Dichloromethane (physical blowing agent) 8

[0062] Diethanolamine (crosslinking agent) 1.

[0063] The preparation method of the above-mentioned polyurethane memory foam with excellent anti-yellowing performance of the present embodiment is: according to the requirements of the production scale, the corresponding raw materials are taken according to the parts by weight of the raw materials, ...

Embodiment 2

[0064] Embodiment 2, the environment-friendly polyurethane memory sponge with excellent anti-yellowing performance described in this embodiment, it is made by the raw material reaction foaming of following weight fraction:

[0065] Polyether polyol 330N 80

[0066] Polyether polyol BEN-613 Li 20

[0067] Isophorone diisocyanate 35

[0068] water 5

[0069] L-626 (silicone oil) 1.2

[0070] Bis(dimethylaminoethyl)ether (catalyst) 0.5

[0071] 1,4-diazabicyclo[2.2.2]octane (catalyst) 0.8

[0072] Chisorb B2636H (stabilizer) 2

[0073] Dichloroethane (physical blowing agent) 0.5

[0074] 1,4-Butanediol (cross-linking agent) 2.

[0075] The preparation method of the above-mentioned environmentally friendly polyurethane memory foam with excellent anti-yellowing performance of this embodiment is: according to the requirements of the production scale, take the corresponding raw materials according to the parts by weight of each raw material, and mix the polyether multi-compone...

Embodiment 3

[0076] Embodiment 3, the environment-friendly polyurethane memory foam with excellent anti-yellowing performance described in the present embodiment, it is made by the raw material reaction foaming of following weight fraction:

[0077] Polyether polyol 330N 20

[0078] Polyether polyol Y-1030 80

[0079] Isophorone diisocyanate 70

[0080] Water1

[0081] L-608 (silicone oil) 2

[0082] Triethylamine (catalyst) 0.2

[0083] Bis(dimethylaminoethyl)ether (catalyst) 0.4

[0084] N,N-Dimethylcyclohexylamine (catalyst) 0.4

[0085] Tinuvin B75 (stabilizer) 2

[0086] Dichloromethane (physical blowing agent) 15

[0087] Glycerol (crosslinking agent) 0.8.

[0088] The preparation method of the above-mentioned environmentally friendly polyurethane memory foam with excellent anti-yellowing performance of this embodiment is: according to the requirements of the production scale, take the corresponding raw materials according to the parts by weight of each raw material, and mix ...

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PUM

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Abstract

The invention discloses polyurethane memory foam with superior anti-yellowing performance, and belongs to the field of polyurethane foam. The polyurethane memory foam is prepared from the following raw materials in parts by weight through reactive foaming: 10-90 parts of normal polyether glycol, 90-10 parts of slow recovery polyether glycol, 30-80 parts of isophorone diisocyanate, 1-5 parts of water, 1-3 parts of silicone oil, 0.4-2 parts of catalyst, 0.3-2 parts of stabilizer, 0.5-15 parts of physical foaming agent and 0.4-2 parts of crosslinking agent. The preparation method comprises the following steps of: adding corresponding parts by weight of polyether glycol (including normal polyether glycol and slow recovery polyether glycol) and isophorone diisocyanate into a mixer to stir uniformly; heating to 30-70 DEG C; adding corresponding parts of other raw materials into the mixer; and stirring at a high speed for 3-10 seconds and then pouring in a mould to foam and cure to obtain the corresponding polyurethane memory foam. Since the isophorone diisocyanate not containing benzene ring is adopted as a raw material, the produced polyurethane memory foam has superior anti-yellowing performance such as antioxidation, irradiation resistance, aging resistance and the like.

Description

[0001] technical field [0002] The invention relates to the technical field of polyurethane sponge, in particular to a polyurethane memory sponge with excellent anti-yellowing performance prepared by reaction foaming of polyether polyol and isophorone diisocyanate as main raw materials. Background technique [0003] Memory foam is composed of slow-rebound polyurethane sponge, elastic polyurethane cotton with countless open pores, which can reduce the pressure on the body's stress point in a relaxed state, and is used in home life and medical fields, such as high-end pillows, beds Pads and special medical facilities. It is also widely used in the aerospace industry to reduce the huge damage that the aircraft may cause to the human body due to gravity during take-off and landing, and to provide more comfortable and safe cushions for pilots who fly for a long time. [0004] At present, there are many sponge manufacturers in my country that can produce polyurethane memory foam,...

Claims

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Application Information

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IPC IPC(8): C08G18/75C08G18/66C08G18/48C08J9/14C08J9/12C08G101/00
Inventor 胡志刚
Owner 胡志刚
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