A kind of soft polyurethane foam for car seat cushion

A polyurethane foam, polyester block technology, applied in the field of auto parts, can solve the problems of deterioration of vibration performance, difficulty in meeting vibration performance, soft touch, poor air permeability, etc., and achieves the effect of low density

Inactive Publication Date: 2016-01-20
JILIN PROVINCE JIGANG NEW MATERIALS SCI & TECH DEV CO LTD
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Problems solved by technology

[0004] However, the above requirements are often contradictory. For example, if you want to reduce the density, you often have to sacrifice a certain amount of durability, and it is also difficult to meet the requirements of vibration performance and soft touch. In order to avoid the collapse caused by the weight of the human body In addition, it should be designed to ensure that the polyurethane foam has sufficient strength, so that the air permeability of the material is poor. In addition, to obtain good air permeability, it may also lead to deterioration of vibration performance, etc.

Method used

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  • A kind of soft polyurethane foam for car seat cushion

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Embodiment Construction

[0024] The content of the present invention will be described in detail below through specific embodiments.

[0025] Prepare the raw materials according to the composition ratio of the foaming stock solution described in Table 1, and then gradually add the raw materials to the mixing container according to the order of polyol composition, catalyst, foam stabilizer, water, flame retardant, and polyisocyanate. In the process, while adding materials, stir evenly, maintain the temperature of the well-mixed foaming stock solution at 30°C; preheat the temperature of the foaming mold to 50°C, and then inject the evenly mixed foaming stock solution into the foaming mold under atmospheric pressure After the injection is completed, the foaming and curing will begin immediately, and the pressure will be released immediately after foaming 90s to reduce the pressure in the cavity by 0.1MPa; after the foaming, the foamed material will be placed for 24h to obtain The final polyurethane foam mat...

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Abstract

The invention provides a novel polyurethane foam material for an automobile cushion. The polyurethane foam material is obtained by reacting polyol composition with polyisocyanate in the presence of a catalyst, a foaming agent, a foam stabilizer and a flame retardant. Raw material components of the polyurethane foam material are optimized, and the novel polyurethane foam material which is excellent in vibration performance and permeability and safe in use is obtained through matching of all the raw material components.

Description

Technical field [0001] The present invention relates to the technical field of automobile parts, in particular to provide a soft polyurethane foam material for automobile seat cushions. Background technique [0002] As we all know, flexible polyurethane foam is obtained by reacting polyisocyanate with a high molecular weight, non-isocyanate-reactive compound in the presence of a blowing agent. However, flexible polyurethane foam materials are widely used in the production and preparation of car seat cushions because of their excellent cushioning properties. [0003] With the continuous development of the automotive industry and people's continuous pursuit of the improvement of automotive quality, the requirements for automotive parts materials are also increasing. As for car seat cushions, due to various considerations such as vehicle driving economy and safety and comfort of drivers and passengers, various requirements are put forward for the soft polyurethane foam material as th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/48C08J9/08C08L75/08C08G101/00
CPCC08G18/4816C08G18/4833C08G18/4837C08G18/7614C08G18/7671C08G2110/0083
Inventor 毛秧群
Owner JILIN PROVINCE JIGANG NEW MATERIALS SCI & TECH DEV CO LTD
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