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Method for manufacturing a composite molded body

A technology of composite molding and manufacturing method, applied in tire parts, coating, transportation and packaging, etc., can solve the problems of high difficulty and high manufacturing cost, achieve good adhesion, reduce environmental pollution problems, and low cost of materials Effect

Active Publication Date: 2012-07-11
PETROSA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] More specifically, the object of the present invention is to provide a method for manufacturing a composite molded body, that is, a manufacturing stage of a molded body, wherein the molded body includes polyethylene terephthalate, acrylonitrile-butylene Diene-styrene and glass fiber or carbon fiber; at the stage of coating the reactive polyurethane composition or rubber composition on the molded body, thereby improving the difficulty and difficulty of the conventional manufacturing method of wheels made of metal castings. Disadvantages of high manufacturing cost

Method used

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  • Method for manufacturing a composite molded body

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Effect test

Embodiment 1- Embodiment 12

[0032] Using a mixer, recyclable polyethylene terephthalate (SK CHEMICAL, 4080), acrylonitrile-butadiene-styrene (LG Chemical, Hi100) and glass fiber (Korea FIBER, glass fiber chopped felt) or carbon fiber was mixed for 30 minutes. According to needs, it can further contain polyethylene (recyclable), polycarbonate (LG Chemical, Calibre201), polybutylene terephthalate (LG Chemical, 5011), nylon (KOLON, DUPONT), thermoplastic polyurethane (Hosung Chemex, 5190AP), styrene-butadiene-styrene (KUMHOPETROCHEMICAL, KT201), one or more resins selected, each composition and content are shown in Table 1 below. Using a 60m / m single-screw extruder whose temperature is adjusted to 220°C-250°C, the mixture is kneaded at a speed of 1,400rpm, and then an injection molding machine (YUJIN Oil Pressure Co., Ltd., 20 ounces) is used to adjust the mold temperature to Inject the predetermined amount into the mold at 220°C-240°C, and then cool for 40 seconds to obtain a molded body. The process-man...

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Abstract

The present invention relates to a method for manufacturing a composite molded body, and more particularly, to a method for manufacturing a composite molded body, comprising: a step of manufacturing a molded body containing polyethylene terephthalate, acrylonitrile-butadiene-styrene, and glass or carbon fibers; and a step of coating the molded body with a reactive polyurethane composition or with a rubber composition. The composite molded body according to the present invention can be used in lieu of a wheel hub casting to minimize the weight of a wheel, can be manufactured at a low cost in terms of materials, and can be mass-produced. The composite molded body of the present invention has remarkably superior adhesion to the coating composition, and the strength and durability thereof corresponds to that of cast metal such as cast iron, stainless steel, aluminum, etc.

Description

technical field [0001] The present invention relates to a method for manufacturing a composite molded body, and more specifically, to a method for manufacturing a composite molded body comprising the steps of manufacturing a molded body; applying a reactive coating composition to the molded body , Here, the molded body comprises polyethylene terephthalate, acrylonitrile-butadiene-styrene and glass fiber or carbon fiber, and the reactive coating composition is a reactive polyurethane composition or a rubber composition things. Background technique [0002] In general, the types of wheels that are devices that can easily move objects can be distinguished according to their uses. For example, wheels with a maximum load of about 135 kg are used in high-end home appliances, display racks, office equipment, and interior furniture, lightweight objects, and industrial vehicles. For vehicles, etc., medium-duty wheels with a maximum load of about 200kg are used for various heavy-duty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L67/03C08K7/02B60C1/00C08J7/043
CPCB60C1/00C08J5/043C08J5/042C08J2475/04C08J7/047C08J2367/02C08J2400/22C08J2300/30C08J2409/00C08J7/0427C08J7/043C08J5/04C08J2355/02C08J2421/00
Inventor 金完吉
Owner PETROSA