另类zoofilia杂交videos,色,偷拍,欧洲,久久网,av一本久道久久波多野结衣,秒播无码国产在线观看,亚洲中文字幕无码一区在线,AV无码久久久久不卡免费网站,成全视频动漫免费高清,婷婷开心色四房播播,国产成人精品午夜福利在线播放,脱了老师内裤猛烈进入的软件

  What are the basic characteristics of silica gel masterbatch?

  First, the light resistance of silica gel color master

  The light resistance of silica gel masterbatch refers to the light resistance of masterbatch. The pigment is dispersed in a certain medium, and the sample is made. At the same time, under the specified light source, after a certain time of exposure, the degree of discoloration is compared with the sample card of "Blue Standard for Sunlight Fastness", and the results show that grade 1 is poor, grade 8 is better.

  Two, silica gel color master heat resistance

  The heat resistance of silica gel masterbatch refers to the heat resistance of masterbatch. The greater the number, the better the heat resistance. The pigment is dispersed in the polyolefin to make one third of the standard color, and stays for 5min after molding in the injection molding machine.

  Three, silica gel color master resistance to migration

  The resistance of silica gel masterbatch refers to the ability of masterbatch resistance to migration, migration refers to the colorant from the inside of the product to the surface of the product or from a product through the interface to products and solvents.

  In the process of silica gel masterbatch production and processing, the pigment under the action of additives, the silica gel masterbatch is thoroughly connected with the carrier through abundant mixing. In use, according to a certain share in the silica gel to be processed, masterbatch quickly into the character, and the silica gel to recognize "in-laws". Affinity - compatibility is significantly better than toner coloring, therefore, on the production of film and silicone products manufacturers, more can realize.