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Open-cell organosilicon surfactant and preparation method and application thereof, and high-resilience foam

A surfactant and organosilicon technology, applied in the field of surfactants, can solve the problem of poor control effect of foam cell thickness, achieve effective control of pore opening and stability, improve porosity, and control stability Effect

Inactive Publication Date: 2020-04-21
JIANGSU MAYSTA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the surfactants used in polyurethane high resilience foam have poor control effect on the thickness of foam cells

Method used

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  • Open-cell organosilicon surfactant and preparation method and application thereof, and high-resilience foam
  • Open-cell organosilicon surfactant and preparation method and application thereof, and high-resilience foam
  • Open-cell organosilicon surfactant and preparation method and application thereof, and high-resilience foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (1) Synthesis of A component

[0064] 83.12g of octamethylcyclotetrasiloxane, 42.57g of high hydrogen-containing silicone oil and 54.31g of hexamethyldisiloxane were reacted under the action of acid clay at 80°C for 6 hours to obtain the first hydrogen-containing silicone oil.

[0065] Put 50g of the first hydrogen-containing silicone oil and 64.32g of allyl polyether into the reactor, under the conditions of 5ppm chloroplatinic acid catalyst and 200ppm diethanolamine cocatalyst, raise the temperature to 130°C under normal pressure and react for 5h to obtain component A, molecular formula m is 3.2, n is 1.9, a in the structural formula of R is 2, b is 1.5, R 1 For methyl.

[0066] (2) Synthesis of B component

[0067] 114.9g of octamethylcyclotetrasiloxane, 37.01g of high hydrogen-containing silicone oil and 28.09g of hexamethyldisiloxane were reacted at 80°C for 6 hours under the action of acid clay to obtain the second hydrogen-containing silicone oil.

[0068] Add...

Embodiment 2

[0078] (1) Synthesis of A component

[0079] React 89.83g of octamethylcyclotetrasiloxane, 46.12g of high hydrogen-containing silicone oil and 44.06g of hexamethyldisiloxane under the action of acid clay at 80°C for 6 hours to obtain the first hydrogen-containing silicone oil.

[0080] Add 50g of the first hydrogen-containing silicone oil and 69.68g of allyl polyether into the reactor, under the conditions of 6ppm chloroplatinic acid catalyst and 200ppm triethanolamine cocatalyst, raise the temperature to 130°C under normal pressure and react for 6h to obtain component A, molecular formula m is 4.2, n is 2.5, a in the structural formula of R is 2, b is 1.5, R 1 For methyl.

[0081] (2) Synthesis of B component

[0082] 113.9 g of octamethylcyclotetrasiloxane, 44.58 g of high hydrogen-containing silicone oil and 21.93 g of hexamethyldisiloxane were reacted at 80° C. for 6 hours under the action of acid clay to obtain the second hydrogen-containing silicone oil.

[0083] Add ...

Embodiment 3

[0096] (1) Synthesis of A component

[0097] 76.20 g of octamethylcyclotetrasiloxane, 39.43 g of high hydrogen-containing silicone oil and 64.36 g of hexamethyldisiloxane were reacted under the action of concentrated sulfuric acid at 30°C for 6 hours to obtain the first hydrogen-containing silicone oil.

[0098] Add 50g of the first hydrogen-containing silicone oil and 63.18g of allyl polyether into the reactor, under the condition of 6ppm chloroplatinic acid catalyst and 100ppm diethanolamine cocatalyst, raise the temperature to 120°C under normal pressure and react for 7h to obtain component A, molecular formula m in is 2.5, n is 1.5, a in the structural formula of R is 3, b is 1, R 1 For methyl.

[0099] (2) Synthesis of B component

[0100] 103.69g of octamethylcyclotetrasiloxane, 44.03g of high hydrogen-containing silicone oil and 32.28g of hexamethyldisiloxane were reacted under the action of concentrated sulfuric acid at 30°C for 6 hours to obtain the second hydrogen-...

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Abstract

The invention provides an open-cell organosilicon surfactant and a preparation method and application thereof, and high-resilience foam, belonging to the technical field of surfactants. The open-cellorganosilicon surfactant comprises the following raw materials in percentage by weight: 5 to 20% of a component A, 5 to 20% of a component B, 1 to 10% of a component C, 30 to 59% of a component D and30 to 50% of a component E, wherein the component A has a structural formula as shown in the specification; the component B has a structural formula as shown in the specification; the component C hasa structural formula as shown in the specification; and the component D and the component E are copolymers with terminal hydroxyl groups derived from polyhydroxy compounds. The surfactant can be usedfor effectively regulating and controlling the cell opening property and the stability of a polyurethane high-resilience foam body. The preparation method may comprise a step of mixing the five components. The method is simple, easy to operate and suitable for industrial production. When the open-cell organosilicon surfactant is used for preparing the high-resilience foam, the size stability of the high-resilience polyurethane foam can be effectively regulated and controlled.

Description

technical field [0001] The present application relates to the technical field of surfactants, in particular, to an open-cell silicone surfactant, its preparation method and application, and high resilience foam. Background technique [0002] Polyurethane high-resilience foam is a kind of foam with excellent performance. Compared with general foam, high-resilience foam has higher elasticity, better comfort performance and performance durability. Although ordinary polyurethane flexible foam is still the leading product in the market, the application of high-resilience foam plastics is becoming more and more extensive. High-resilience foam is not only used in automobiles, motorcycles, and aircraft seats, but also in high-end furniture. [0003] The production of polyurethane high resilience foam is usually mixed at high speed by polyether polyol, water, catalyst, silicone surfactant, foaming agent, other additives and isocyanate and other raw materials, and reacts quickly under...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/00C08L75/08C08G81/00C08G77/46
CPCC08J9/0042C08G81/00C08G77/46C08J2375/08C08J2205/05
Inventor 黄登登唐雄峰王伟伟
Owner JIANGSU MAYSTA CHEM
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