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济南注塑加工如何降低难闻气味?

来源: 日期:2020-12-28 发布人:liqiang 浏览次数:
1、采用更为纯净的树脂
1. Use more pure resin
许多塑料中,特别是在聚氯乙烯、苯乙烯、聚乙酸乙酯和丙烯酸酯等塑料中,残留的微量单体会产生难闻的气味.采用单体残留量很少的树脂即可消除那些气味.
In many plastics, especially in polyvinyl chloride, styrene, polyethyl acetate and acrylates, the residual trace amounts to smell unpleasant. The odor can be eliminated by using a small amount of resin with monomer residues.
2、改变添加剂
2, change the additive
济南注塑加工生产过程中所用到的催化剂叔胺常常会带来很强的气味,同时还会在汽车内窗上结雾.解决这个问题的办法即是找到这些胺类的替代物.措施之一是使用多羟基化合物,多羟基化合物不仅是聚氨酯分子链的成分,而且也同样具有催化活性.一些多羟基化合物甚至可以取代一半的叔胺催化剂,这样得到的产品散发的气味就弱多了.
The catalyst used in Ji'nan tertiary amine injection molding in the production process often have a very strong smell, but also fog in the car window. The solution to this problem is to find a substitute for these amines. One of the measures is the use of polyhydroxy compounds, polyhydroxy compounds is not only the polyurethane molecular chain component, and also has catalytic activity. Tertiary amine catalyst some polyhydroxy compounds can even replace half of the product thus obtained the smell is much weaker.
3、加入吸附剂
3, adding adsorbents
在聚合物中如果填充少量的沸石,即可起到去除材料气味的作用.沸石具有大量的结晶空洞,这些空洞可以捕捉那些具有气味的气体小分子.分子吸附剂已经成功应用于聚烯烃挤出管材、注射和挤出吹塑容器、隔离包装材料、挤出成型的外包装材料和密封用聚合物.
If a small amount of filler in the polymer zeolite, can play the role of odor removal of material. The zeolite has a large number of crystal holes, these holes can capture the gas with smell of small molecules. The molecular adsorbent has been successfully applied to polyolefin pipe extrusion, injection and extrusion blow molding containers, packaging materials, insulation extrusion molding packaging materials and sealed with polymer.
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