High-strength wheelchair cushion plate and preparation method thereof

A high-strength wheelchair technology, applied in the field of wheelchair preparation, can solve the problems of aging cracking and low cushion strength, and achieve the effect of simple method, easy-to-obtain raw materials, and not easy aging and cracking

Inactive Publication Date: 2017-09-19
安徽智联管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-strength wheelchair cushion and its preparation method, which

Method used

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preparation example Construction

[0014] The present invention provides a kind of preparation method of high-strength wheelchair cushion board, and described preparation method comprises:

[0015] (1) Polypropylene, polyamide, antimony trioxide, epoxy resin, acrylonitrile-ethylene-styrene copolymer, ethylene-tetrafluoroethylene copolymer, barium oxide, rare earth oxide, sodium metavanadate, emulsified After the agent and the stabilizer are mixed, they are extruded and granulated to obtain the masterbatch M;

[0016] (2) Mix the masterbatch M, sodium methylcellulose and ethyl acetate, heat and form it to obtain a high-strength wheelchair seat cushion; wherein, relative to 100 parts by weight of the polypropylene, the amount of the polyamide is 20-30 parts by weight, the consumption of the antimony trioxide is 5-12 parts by weight, the consumption of the epoxy resin is 20-40 parts by weight, and the consumption of the acrylonitrile-ethylene-styrene copolymer is 10-25 parts by weight, the amount of the ethylene-...

Embodiment 1

[0027] 10kg polypropylene, 2kg polyamide, 0.5kg antimony trioxide, 2kg epoxy resin, 1kg acrylonitrile-ethylene-styrene copolymer, 1kg ethylene-tetrafluoroethylene copolymer, 0.5kg barium oxide, 0.1kg rare earth oxide compound, 0.2kg sodium metavanadate, 0.1kg octylphenol polyoxyethylene ether and 0.1kg lead nitrate (mixed by ultrasonic mixing, the ultrasonic frequency is 10,000 Hz, and the ultrasonic time is 10min), and then extruded Granulate to obtain masterbatch M; mix 10kg of said masterbatch M, 0.5kg sodium methylcellulose and 1kg ethyl acetate, heat and form (the heating temperature is 200°C, the heating time is 10min, and the molding pressure is 0.02MPa) to obtain high-strength wheelchair seat cushion A1, wherein, in the process of heating and forming, after the mixture passes through the die, it will be subjected to gradual water-cooling treatment, and the gradual water-cooling treatment will be along the direction from the inlet to the outlet The directions in turn in...

Embodiment 2

[0029] 10kg polypropylene, 3kg polyamide, 1.2kg antimony trioxide, 4kg epoxy resin, 2.5kg acrylonitrile-ethylene-styrene copolymer, 2kg ethylene-tetrafluoroethylene copolymer, 1kg barium oxide, 0.5kg rare earth oxide substance, 0.4kg sodium metavanadate, 0.4kg benzyl dimethylphenol polyoxyethylene ether and 0.4kg lead sulfate (mixed by ultrasonic mixing, ultrasonic frequency is 25,000 Hz, ultrasonic time is 20min) , extruded and granulated to obtain masterbatch M; 10kg of said masterbatch M, 1kg of sodium methylcellulose and 3kg of ethyl acetate were mixed, heated and formed (the heating temperature was 250°C, the heating time was 30min, and the formed The pressure is 0.05MPa) to obtain the high-strength wheelchair seat cushion A2, wherein, in the process of heating and forming, after the mixture passes through the die, it will be subjected to gradual water cooling treatment, and the gradual water cooling treatment will be along the direction from the inlet to the outlet. The ...

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Abstract

The invention discloses a high-strength wheelchair cushion plate and a preparation method thereof. The preparation method comprises the following steps: polypropylene, polyamide, diantimony trioxide, epoxy resin, an acrylonitrile-ethylene-styrene copolymer, an ethylene-tetrafluoroethylene copolymer, barium oxide, rare earth oxide, sodium metavanadate, an emulsifier and a stabilizer are mixed, the mixture is subjected to extrusion pelletizing, and masterbatch M is obtained; the masterbatch M, sodium methylcellulose and ethyl acetate are mixed, the mixture is subjected to heating forming, and the high-strength wheelchair cushion plate is obtained. The problems that a common wheelchair cushion is lower in strength and is prone to aging cracking after long-time use are solved.

Description

technical field [0001] The invention relates to the field of wheelchair preparation, in particular to a high-strength wheelchair cushion board and a preparation method thereof. Background technique [0002] Wheelchair is an important tool for rehabilitation. It is not only a means of transportation for physically disabled and handicapped people, but more importantly, it enables them to perform physical exercises and participate in social activities with the help of wheelchairs. The seat cushion of the wheelchair is generally made of layered foam plastics, and its thickness should be 10cm. The upper layer is 0.5cm thick high-density polyarethane foam plastics, and the lower layer is medium-density plastics of the same nature. Strong, medium density soft and comfortable. Ordinary wheelchair cushions have low strength and are prone to aging and cracking after long-term use. Contents of the invention [0003] The object of the present invention is to provide a high-stren...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L77/00C08L63/00C08L33/20C08L23/08C08L1/28C08K13/02C08K3/22C08K3/24C08K5/101
CPCC08L23/12C08L2201/08C08L2205/02C08L2205/035C08L77/00C08L63/00C08L33/20C08L23/0892C08L1/28C08K13/02C08K3/2279C08K3/24C08K5/101
Inventor 彭聪
Owner 安徽智联管理咨询有限公司
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