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Organosilicon surfactant used for high-resilience foam and preparation method of organosilicon surfactant

A surfactant and high-resilience technology, applied in the field of surfactants and their preparation, silicone surfactants for high-resilience foam and its preparation, to achieve the effect of solving surface and dimensional stability

Inactive Publication Date: 2019-06-11
南京美思德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to solve the problems of polyurethane high resilience foam system compatibility and polyurethane foam surface and dimensional stability in the prior art, and provide a kind of organic silicon surfactant for high resilience foam and its preparation method

Method used

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  • Organosilicon surfactant used for high-resilience foam and preparation method of organosilicon surfactant
  • Organosilicon surfactant used for high-resilience foam and preparation method of organosilicon surfactant
  • Organosilicon surfactant used for high-resilience foam and preparation method of organosilicon surfactant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Component A 1 Synthesis

[0038] React 94.93g of octamethylcyclotetrasiloxane, 51.71g of high hydrogen-containing silicone oil and 33.36g of hexamethyldisiloxane under the action of concentrated sulfuric acid at 30°C for 7h to obtain hydrogen-containing silicone oil.

[0039] Add 50g of the obtained hydrogen-containing silicone oil and 64.07g of allyl polyether into the reactor, under the conditions of 6ppm chloroplatinic acid catalyst and 100ppm diethanolamine cocatalyst, raise the temperature to 120°C under normal pressure, and react for 3h to obtain component A 1 , the molecular formula is:

[0040] S i (CH 3 ) 3 -O-[S i (CH 3 ) 2 -O] 5·7 -[S i (CH 3 )R-O] 3·6 -S i (CH 3 ) 3

[0041] where R=-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 2 (CH 2 CH(CH 3 )O) 1 CH 3 .

[0042] (2) Component B 1 Synthesis

[0043] React 116.06g of octamethylcyclotetrasiloxane, 33.37g of high hydrogen-containing silicone oil and 30.57g of hexamethyldisiloxane under the ac...

Embodiment 2

[0050] (1) Component A 2 Synthesis

[0051] React 88.13g of octamethylcyclotetrasiloxane, 39.09g of high hydrogen-containing silicone oil and 52.78g of hexamethyldisiloxane under the action of concentrated sulfuric acid at 30°C for 7 hours to obtain hydrogen-containing silicone oil.

[0052] Add 55g of the obtained hydrogen-containing silicone oil and 53.29g of allyl polyether into the reactor, under the action of 6ppm chloroplatinic acid catalyst and 100ppm triethanolamine cocatalyst, heat up to 110°C under normal pressure and react for 3.5h to obtain component A 2 , the molecular formula is:

[0053] S i (CH 3 ) 3 -O-[S i (CH 3 ) 2 -O] 3.5 -[S i (CH 3 )R-O] 1.8 -S i (CH 3 ) 3

[0054] where R=-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 2 (CH 2 CH(CH 3 )O) 1 CH 3 .

[0055] (2) Component B 2 Synthesis

[0056] React 113.62g of octamethylcyclotetrasiloxane, 31.7g of high hydrogen-containing silicone oil and 34.68g of hexamethyldisiloxane under the action of conc...

Embodiment 3

[0063] (1) Component A 3 Synthesis

[0064] React 91.59g of octamethylcyclotetrasiloxane, 43.26g of high hydrogen-containing silicone oil and 45.15g of hexamethyldisiloxane under the action of concentrated sulfuric acid at 30°C for 7 hours to obtain hydrogen-containing silicone oil.

[0065] Add 48g of the obtained hydrogen-containing silicone oil and 61.97g of allyl polyether into the reactor, under the action of 6ppm chloroplatinic acid catalyst and 100ppm triethanolamine cocatalyst, heat up to 110°C under normal pressure, and react for 3.5h to obtain component A 3 , the molecular formula is:

[0066] S i (CH 3 ) 3 -O-[S i (CH 3 ) 2 -O] 4.2 -[S i (CH 3 )R-O] 2.3 -S i (CH 3 ) 3

[0067] where R=-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 3 (CH 2 CH(CH 3 )O) 1 CH 3 .

[0068] (2) Component B 3 Synthesis

[0069] React 109.46g of octamethylcyclotetrasiloxane, 42.36g of high hydrogen-containing silicone oil and 28.18g of hexamethyldisiloxane under the action of co...

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Abstract

The invention discloses an organosilicon surfactant used for high-resilience foam and a preparation method of the organosilicon surfactant, belongs to the technical field of surfactants, and solves the problem of compatibility of a polyurethane high-resilience foam system and surface and dimensional stability of polyurethane foam in the prior art. According to the method provided by the invention,two hydrogen-containing silicone oil having different structures is designed, the hydrogen-containing silicone oil and allyl polyether having different molecular weights are separately subjected to areaction to obtain two polyether-modified silicone surfactants with different structures, a ratio of different components is regulated and controlled to realize balance of openness and stability of the high-resilience foam, so that special requirements of a volume, aeration, shear and surface and dimensional stability of the high-resilience polyurethane foam are met, and the problems of system compatibility and surface and dimensional stability of the polyurethane foam are effectively solved.

Description

technical field [0001] The invention relates to a surfactant and a preparation method thereof, in particular to a silicone surfactant for high resilience foam and a preparation method thereof, belonging to the technical field of surfactants. Background technique [0002] High-resilience polyurethane foam (HR) is a kind of foam with excellent performance. At present, it is developing rapidly at home and abroad and is widely used. The product is characterized by light weight, good resilience, sound absorption and shock absorption, and also has a latex-like feel. The initial touch is soft and comfortable. When further compressed, it can provide firm and elastic support. It is an ideal paving and cushioning material, so it is widely used to make seats, cushions and headrests of vehicles (cars, trains, airplanes, etc.). [0003] In the foaming process of high-resilience polyurethane, surfactants play a very important role. They have obvious effects on the adjustment of foam cell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/00C08L75/04C08G77/46
Inventor 黄登登唐雄峰平翔林王伟伟
Owner 南京美思德新材料有限公司
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