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有没有降低注塑加工时难闻气味的好方法?

来源:http://www.sdlqmj.com 日期:2019-09-10 发布人:admin 浏览次数:
现如今,无论在日常生活中还是生产、流通领域,注塑制品随处可见,但是在注塑加工时,注塑材料产生的一些气味真的令人难以忍受,那么有没有什么好的方法可以降低注塑加工时难闻气味?下面济南注塑加工厂家就教给大家吧!
Nowadays, no matter in daily life or in the field of production and circulation, injection products can be seen everywhere, but in injection processing, some odors produced by injection materials are really unbearable. Is there any good way to reduce the unpleasant odor in injection processing? Now Jinan Injection Molding Manufacturers will teach you!
1、采用更为纯净的树脂
1. Purer resins
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。如果采用本身即无气味的树脂亦有很好的效果。例如,杜邦塑料件加工厂研制出一种新等级的乙缩醛共聚物,这种树脂在注射加工过程中释放的气味非常微量。
In many plastics, especially in plastics such as polyvinyl chloride, styrene, polyethyl acetate and acrylate, the residual monomers can produce unpleasant odors. Those odors can be eliminated by using resins with few residual monomers. If the resin itself is odorless, it also has a good effect. For example, DuPont Plastic Parts Factory has developed a new grade of acetal copolymer, which emits very little odor during injection processing.
2、改变添加剂
2. Changing Additives
(1)聚氨酯泡沫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。
(1) the catalyst tertiary amine used in the production of polyurethane foam often brings strong odor, but also fogs inside the car windows. One way to solve this problem is to find substitutes for these amines. One of the measures is to use polyhydroxy compounds. Polyhydroxy compounds are not only the components of polyurethane molecular chains, but also have catalytic activity. Some polyhydroxy compounds can even replace half of tertiary amine catalysts so that the gases emitted by the products can be replaced. The taste is much weaker.
济南注塑加工
(2)在PVC挤出或者压延过程中使用的苯酚类稳定剂也经常被低气味的锌类稳定剂所替代,热稳定剂辛酸锡也因其低气味和低雾化特性而常用在车用PVC制品中,植物提取油如芥酸和油酸要比动物提取油制得的胺类润滑剂(用于聚烯烃和苯乙烯类食品包装材料)的气味小很多。
(2) Phenolic stabilizers used in extrusion or calendering of PVC are often replaced by zinc stabilizers with low odor. Tin octanate, a heat stabilizer, is also commonly used in automotive PVC products due to its low odor and low atomization characteristics. Vegetable extract oils such as erucic acid and oleic acid are more suitable than amine lubricants made from animal extract oils (for polyene). Hydrocarbon and styrene food packaging materials) have a much smaller odor.
3、加入吸附剂
3. Adsorbent
在聚合物中如果填充少量的沸石(一种铝硅酸盐吸附剂),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,分子吸附粉末也可以作为吸潮剂加入塑料中以除去水汽,这些水汽也会有助于塑料制品产生气味。
If a small amount of zeolite (an aluminosilicate adsorbent) is filled in the polymer, it can remove the odor of the material. Zeolite has a large number of crystalline voids, which can capture the odorous gas molecules. Molecular adsorbents have been successfully used in polyolefin extrusion pipes, injection and extrusion blow-moulding containers. Isolating packaging materials, extruded packaging materials and sealing polymers. Molecular adsorbent powders can also be added to plastics as moisture absorbents to remove water vapor, which also contributes to the odor of plastic products.
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Well, today's wonderful content is introduced to you first, welcome to collect our website: http://www.sdlqmj.com, we will update more wonderful content regularly! We search keywords: Jinan injection molding processing, so we can also find! Thank you for your support!

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