Novel PU (polyurethane) foam automobile cushion
A technology of polyurethane foam and car seat cushions, which is applied in the direction of thigh cushions, back cushions, layered products, etc., can solve the problems of difficult to meet vibration performance, soft touch, deterioration of vibration performance, poor air permeability, etc., and achieve excellent vibration characteristics and Air permeability, low density effect
Inactive Publication Date: 2014-04-16
安徽新南港汽车纺织品有限公司
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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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[0019] The content of the present invention will be described in detail below through specific embodiments.
[0020] Prepare the raw materials according to the composition ratio of the foaming stock solution described in Table 1, and then gradually add each raw material to the mixing container according to the order of adding the polyol composition, catalyst, foam stabilizer, water, flame retardant, and polyisocyanate During the process, while feeding, stir evenly, and 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 well-mixed foaming stock solution into the foaming mold under atmospheric pressure In the mold cavity, foaming and hardening begin immediately after the injection is completed, and immediate pressure release is implemented after foaming for 90s, so that the pressure in the mold cavity is reduced by 0.1MPa; after the foaming is completed, the foamed material obtained i...
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The invention provides a novel PU (polyurethane) foam automobile cushion. A PU foam material is used as an elastic layer of the automobile cushion after cutting, the elastic layer is covered with a non-woven fabric layer and a leather layer respectively, and the layers are bonded through a binder. The PU foam automobile cushion is characterized in that the PU foam material is a soft PU foam material obtained through reacting polyhydric alcohol composition with polyisocyanate in the presence of a catalyst, a foaming agent, a foam stabilizer and a flame retardant.
Description
technical field [0001] The invention relates to the technical field of auto parts, in particular to provide an auto seat cushion made of soft polyurethane foam. Background technique [0002] It is well known that flexible polyurethane foams are obtained by reacting polyisocyanates with high molecular weight, isocyanate-inactive compounds in the presence of blowing agents. The flexible polyurethane foam material is widely used in the production and preparation of automobile seat cushions because of its excellent cushioning properties. [0003] With the continuous development of the automobile industry and people's continuous pursuit of improving the quality of automobiles, the requirements for auto parts materials are also increasing. As for car seat cushions, due to the consideration of vehicle driving economy, safety and comfort of drivers and passengers, various requirements are put forward for soft polyurethane foam materials as seat cushion raw materials. For example, f...
Claims
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Login to View More IPC IPC(8): C08G18/76C08G18/48C08J9/08C08K5/521C08L75/08B60N2/62B60N2/64B32B27/12B32B27/18B32B27/40B32B7/12C08G101/00
CPCB32B7/12B32B27/12B32B27/18B32B27/40B32B2250/03B32B2260/023B32B2266/0278B32B2307/56B60N2/62B60N2/64C08G18/4812C08G18/4816C08G18/4833C08G18/485C08G2350/00C08G2110/0008C08G2110/0083
Inventor 毛秧群
Owner 安徽新南港汽车纺织品有限公司