设为首页 | 加入收藏


保定鸿远塑业有限公司
免费热线:4008781768
手 机:15133559906
地 址:河北省保定市顺平县
网 址:www.hyppban.com

您现在的位置:pp板材_pvc板_pvc软板_pp塑料板_pp板-保定鸿远塑业有限公司 >> 行业动态 >> 浏览文章

 

pvc有毒吗?

 

日期:2019年09月20日 来源:本站原创 浏览:

 

PVC本身是无毒的,但聚合PVC用的氯乙烯(VCM)单体是有致癌作用的。通常规定VCM含量在1PPM以下是无毒的卫生级树脂。所以看PVC是否有毒第一是看树脂是否是卫生级脂。第二,看助剂,PVC加工中要大量使用助剂,助剂有有毒的也有无毒的,特别是稳定剂,不透明的用铅盐、镉盐、钡盐等是有毒的,其它的无毒。其它肋剂也一样,都有有毒也有无毒的。所以说,PVC是无毒的,但PVC制品是否有毒,要看具体产品说了,不一定的,象PVC片大量用在药品包装上的,一次性输液管全是PVC的。PVC的热稳定性不是太好,受热易分解,但温度至少也要在170度左右了,而且光不会引起PVC分解的,目前建筑用排水管全是PVC的,所以说它很不稳定极不准确。分解是产生HCL,气味很刺鼻,一般只有生产过程中有,使用中是不会出现的,这个可以放心。

PVC itself is non-toxic, but vinyl chloride(VCM) monomers used for polymerization PVC are carcinogenic. It is usually stipulated that the VCM content is less than 1 PPM is a non-toxic sanitary grade resin. So the first thing to see if PVC is toxic is whether the resin is a hygienic grade fat. Second, look at the Auxiliaries, PVC processing to use a large number of Auxiliaries, Auxiliaries are toxic and non-toxic, especially stabilizers, opaque use of lead salt, cadmium salt, Barium salt, etc. are toxic, other Non-toxic. Other ribs, too, are toxic and non-toxic. Therefore, PVC is non-toxic, but PVC products are toxic, depending on the specific products said, not necessarily, such as PVC tablets used in a large number of pharmaceutical packaging, one-time infusion tube is PVC. The thermal stability of PVC is not very good. It is easily decomposed by heat, but the temperature must be at least 170 degrees, and light will not cause the decomposition of PVC. At present, the drainage pipes for construction are all PVC, so it is very unstable and extremely inaccurate. Decomposition is the production of HCL, the smell is very irritating, generally only in the production process, will not appear in use, this can be assured.

 

上一篇新闻:塑料焊条有几种
下一篇新闻:PVC板上有静电吗

 

更多关于PVC棒相关信息


塑料主营:塑料板,PP塑料板,PVC塑料板,PVC硬板,PVC软板,PVC透明板,PP棒等各种PP板材,PVC板材。
Copyright©2010保定鸿远塑业有限公司. All rights reserved卓越技术提供全程网络服务 网站地图html 网站地图xml
友情链接:PP板