Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Adhesive for powder injection molding and preparation method of adhesive
The invention provides an adhesive for powder injection molding and a preparation method of the adhesive. The adhesive is composed of the following components in percentage by weight: 60-85% of polyethylene glycol, 10-35% of polymethyl methacrylate and 1-10% of stearic acid. The preparation method comprises the following steps: (a) dissolving a proper amount of polymethyl methacrylate in acetone at room temperature; (b) adding the polymethyl methacrylate acetone solution into a kneading machine for mixing the same with powder, and stirring uniformly; (c) heating up the kneading machine to 60-120 DEG C to completely volatilize acetone; (d) heating up the kneading machine to 120-160 DEG C, adding polyethylene glycol, and stirring until obtaining a uniform feed; (e) injecting the feed, and removing organic matters from a blank body through a siphon heat degreasing process, wherein the surfactant stearic acid can be added in a ball milling or wet mixing process of the powder or added with the polyethylene glycol. According to the adhesive provided by the invention, special polymethyl methacrylate micropowder with ultra-high molecular weight is replaced by universal polymethyl methacrylate micro powder, so that the cost of the adhesive is lowered, and thus the adhesive is suitable for industrial production.
Adhesive for powder injection molding and preparation method of adhesive
The invention provides an adhesive for powder injection molding and a preparation method of the adhesive. The adhesive is composed of the following components in percentage by weight: 60-85% of polyethylene glycol, 10-35% of polymethyl methacrylate and 1-10% of stearic acid. The preparation method comprises the following steps: (a) dissolving a proper amount of polymethyl methacrylate in acetone at room temperature; (b) adding the polymethyl methacrylate acetone solution into a kneading machine for mixing the same with powder, and stirring uniformly; (c) heating up the kneading machine to 60-120 DEG C to completely volatilize acetone; (d) heating up the kneading machine to 120-160 DEG C, adding polyethylene glycol, and stirring until obtaining a uniform feed; (e) injecting the feed, and removing organic matters from a blank body through a siphon heat degreasing process, wherein the surfactant stearic acid can be added in a ball milling or wet mixing process of the powder or added with the polyethylene glycol. According to the adhesive provided by the invention, special polymethyl methacrylate micropowder with ultra-high molecular weight is replaced by universal polymethyl methacrylate micro powder, so that the cost of the adhesive is lowered, and thus the adhesive is suitable for industrial production.
Adhesive for powder injection molding and preparation method of adhesive
ZHANG HUALI (Autor:in) / HUANG XIAOJUN (Autor:in) / YOU XIAOFENG (Autor:in) / XU WANLI (Autor:in) / FAN YULONG (Autor:in) / TAN XIAOHUA (Autor:in)
08.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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