脱模剂的选择要点 |
添加时间:2018/12/18 14:01:48 浏览次数: |
脱模剂的选择常用的脱模剂有无机物、有机物以及高聚物三类。 The commonly used release agents are inorganic, organic and polymer. 无机脱模剂,如滑石粉、云母粉以及陶土、白粘土等为主要组分配置的复合物,主要用作橡胶加工中胶片、半成品防粘用隔离剂。 Inorganic demoulding agents, such as talc powder, mica powder, clay and clay, are mainly used as separators for anti-sticking film and semi-finished products in rubber processing. 有机脱模剂包括脂肪酸皂(钾皂、钠皂、铵皂、锌皂等)、脂肪酸、石蜡、甘油、凡士林等。 Organic release agents include fatty acid soap (potassium soap, sodium soap, ammonium soap, zinc soap, etc.), fatty acid, paraffin, glycerin, vaseline, etc. 高聚物脱模剂,包括硅油、聚乙二醇、低分子量聚乙烯等,它们的脱模剂效率和热稳定性比有机物脱模剂好得多。 Polymer release agents, including silicone oil, polyethylene glycol and low molecular weight polyethylene, have much better efficiency and thermal stability than organic release agents. 其主要选择要点: The main selection points are as follows: 1、脱模性优良,对于喷雾脱模剂表面张力在17~23 N/m之间。 1. Good demoulding. For spray release agent, the surface tension is between 17~23 N/m. 2、具有耐热性,受热不发生炭化分解。 2. It has heat resistance and does not occur carbonization and decomposition when heated. 3、化学性能稳定,不与成型产品发生化学反应。 3. The chemical performance is stable and does not react with the moulded products. 4、不影响塑料的二次加工性能。 4. It does not affect the secondary processing performance of plastics. 5、不腐蚀模具,不污染制品,气味和毒性小。 5. It does not corrode the mould, does not pollute the products, and has little odor and toxicity. 6、外观光滑美观; 6. Smooth and beautiful appearance; 7、易涂布,生产效率高; 7. Easy coating, high production efficiency; |
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