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Soft PU foamed plastic

A foam and soft technology, applied in the chemical industry, can solve the problems of difficult recycling, non-degradable, etc., and achieve the effect of reducing business risks and reducing dependence

Inactive Publication Date: 2014-04-23
ANHUI HUAIHUA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] While the extensive use of polyurethane is improving people's lives, it is also attracting great attention to the negative impact of the depletion of petroleum resources and its waste on the environment, such as: non-degradable, difficult to recycle

Method used

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  • Soft PU foamed plastic
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] According to 20 parts of polyether polyol, 30 parts of slow rebound polyether, 50 parts of soybean oil polyether polyol, 0.5 part of organotin, 0.5 part of polyamine and 1 part of silicone surfactant, after mixing evenly, stir Add the mixture into the material tank of the foaming device; then add 50wt% toluene diisocyanate of the above mixture, and inject it into the pillow mold with a mold temperature of 70°C after rapid stirring. The stirring speed in the injection device is controlled at 5000 Turn to the above; after the injection is completed, close the mold, let it stand for about 15 minutes, take it out, and after 3 days of aging, the soybean oil slow rebound pillow core is obtained.

[0022] The soybean oil slow-rebound pillow prepared in this example has a light oil fragrance, can absorb sweat caused by sleeping, and will not cause swelling of the slow-rebound sponge due to water absorption, and has the temperature-sensitive memory of slow-rebound polyurethane fo...

Embodiment 2

[0024] According to 50 parts of polyether polyol polymer, 50 parts of castor oil polyether polyol, 0.5 part of organotin, 0.5 part of polyamine and 1 part of silicone surfactant, after mixing evenly, mix the mixture under the condition of stirring Add it to the material tank of the foaming device; then add 50wt% toluene diisocyanate of the above-mentioned mixture, stir quickly, and the stirring time is controlled within 3 to 15 seconds; pour the stirred material into a square mold for foaming, foaming After completion, ripen for 3 days to obtain high-resilience castor oil flexible polyurethane foam.

[0025] The physical properties of the high resilience castor oil polyurethane foam that the present embodiment makes are as follows:

[0026] Rebound coefficient: 55% to 60%,

[0027] 25% indentation hardness: ≥130N,

[0028] Constant load repeated indentation fatigue performance: 12%.

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Abstract

The invention discloses a soft PU foamed plastic. The soft PU foamed plastic is obtained after foaming 50-90 parts by weight of plant oil polyether polyol, 10-50 parts of petroleum polyether polyol, 40-60 parts of toluene diisocyanate and 1-3 parts of an assistant. The use of the plant oil modified polymer polyol in the invention effectively reduces the dependence on the petroleum polyether polyol in the production process, reduces the operation risk of an enterprise, and complies with people's requirements on the environmental protection and low carbon at the present stage. The PU foamed plastic can be widely applied to the industries of clothes, household articles, furniture, shoes and caps, cases and bags, and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a soft PU foam plastic. Background technique [0002] PU material is a kind of polymer material with excellent performance, which is widely used in light industry, textile, medical and other fields, and has become one of the world's six synthetic polymer materials. The most important thing in polyurethane products is polyurethane foam, which has excellent physical and mechanical properties, acoustic properties, electrical properties and chemical resistance. , Variety and other adjustment formula combinations, to produce end products with various properties and uses, so it is widely used. my country's polyurethane foam industry has been developed for more than 40 years, and the current annual output is 4 million tons, accounting for more than 60% of the total PU output. [0003] While the extensive use of polyurethane is improving people's lives, it is also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/67C08G18/48C08G101/00
CPCC08G18/4804C08G18/4891C08G2101/00C08G2280/00
Inventor 戴桂华
Owner ANHUI HUAIHUA
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