The world's leading recycled plastics solution provider International Leading Solution Provider of Recycling Solutions for Recycled Plastics-Henan Pingyuan New Material Technology Co., Ltd.
International Leading Solution Provider of Recycling Solutions for Recycled Plastics
+86-13598003096(Andy@pynmtech.com)
+86-18929127771(Kiwi@pynmtech.com)
Call us
微信二维码
WeChat
app二维码
WhatsApp
Industry news
current location:Home > Industry news > 详情

What are the reasons for the yellowness of ABS recycled materials

更新时间:2018.12.10     作者:管理员      浏览次数:43

ABS plastic will turn yellow when used for a long time. What shall I do? What causes it?

  Generally speaking, the yellowing of ABS recycled plastic particle products is caused by the aging or degradation of materials. Generally, PP is caused by aging (degradation). Due to the presence of the side group on PP, its stability is not good, especially in the case of light. Generally add light stabilizer.

  (1) As for ABS regeneration particles, because there is no side base, the general processing or use of the initial yellowing is not a lot. ABS recycled particles will turn yellow, which has a great relationship with the product formula.

  (2) Yellowing may be related to hydrothermal oxidation and ultraviolet rays, which will be heated (electric heating) in the process of use. If it is humid, it is easy to be further oxidized, leading to yellowing and embrittlement. Or because of the problem of ABS processing technology, the long residence time of injection molding leads to the fast processing requirements of ABS, short cycle time, mold temperature 60-70), leading to degradation.

  (3) In short, the main advantages of the air vent of ABS material are that it will not condense, it will not deform under high temperature, and it is elegant and beautiful (the temperature of ABS thermal deformation can reach 95 ℃). In the process of producing ABS tuyere profile, antioxidants and light stabilizers are added in it, so as to reduce the appearance yellowing caused by UV absorption.

  (4) ABS oxidation resistance is not very good, in the light or wind and rain environment is easy to turn yellow. Without additives, it is very serious that the light turns yellow after a long time, even if it is white. Therefore, pay special attention to the light when storing ABS particles.

  (5) White turns yellow. Generally, most of the particles are added with whitening powder, so the products after injection molding are as white as jade. After a period of time, the whitening powder material will lose its whitening effect under the effect of sunlight, so it will make the product yellow. Generally, the product after yellow can not return to the original white.

PREV: No
Related recommendations

Heavyweight Signal! The fourth meeting of the Central Finance Commission: promoting large-scale recovery and recycling。2024.02.28

-1 - Mainelements of the meeting The Conference heard reportsfrom the National Development and Reform Commission, the Mini

Creator of PCR environmental protection plastic granules--Henan Pingyuan New Material Technology Co.2023.11.29

In the field of technology and environmental protection in China, there is a company that contributes a strong force to the global environmental protection cause with its unique innovation and persistent efforts. This company is Henan Pingyuan New Material Science and Technology Co., Ltd, a leadi...

Lee Jae-woo, Senior Vice President of Korea Hyosung Group, and his three-member delegation visited Henan Pingyuan New Material Technology Co.2023.11.14

Lee Jae-woo, Senior Vice President of Korea Hyosung Group, and his three-member delegation visited Henan Pingyuan New Material Technology Co.

Top 5 Global Plastic Pollution Data2023.06.02

At the time of the Paris Environment Summit, the issue of environmental pollution has drawn renewed attention, especially the issue of plastic polluti...

What kinds and uses of engineering plastics2019.08.30

Many of the products we use in our life are plastic. Before we buy plastic products, we need to know about them. What are the types...

What are the main categories of modified plastics2018.12.10

There are many kinds of modified plastics. What are the main classifications? Pingyuan Xiaobian told you.  1. Flame retardant resin  Flame ...
Product recommendations