Silicone rubber is a group of silicone, oxygen and organic root polymerization of organic polysiloxane (polysilones), chemical composition of polydimethylpolysiloxane, a polymer compound, is composed of many units with the same structure of the long chain compound. And joint forming fields are widely used. Liquid silicone manufacturer to tell you that the silicone rubber tolerated 250 ℃ ~ 300 ℃ high temperature and low temperature - 70 ℃, so the silicone rubber sealing strip medical products can be repeatedly for a long time under high pressure steam sterilization and boil disinfection, even in the formalin liquid medium and long-term immersion can maintain the original characters, and in addition it also has good processing performance, can be made into various shapes and specifications of the products.

Attention should be paid to the problems in processing:

(1) Due to the formula for high plasticizer amount, filling dose is large, kneading must pay attention to the problem of uniform dispersion, just put into plasticizer material is paste, at this time can not add powder filler, otherwise the filler oil absorption caking can not be dispersed evenly, must wait for resin absorption plasticizer expansion can be put into the filler.

② Due to the large amount of plasticizer, we should pay attention to the granulation temperature and the cooling of the extruder when granulating, in order to prevent sticky hair not easy to granulate.

(3) Extrusion of silicon rubber strip with complex structure, especially when there is a hole structure, it should ensure that the plasticization of the material is moderate to prevent hole collapse, and the right-angle head is used for extrusion.

(4) the material shrinkage rate of P2500 resin is larger than that of ordinary soft PVC, and the design of the die should be considered. The length of the straight part of the die should be long enough to ensure the stability of the forming size and the smooth surface.

Suzhou Lanxin Rubber & Plastic Hardware Co., LTD. Suzhou Lanxin Rubber & Plastic Hardware Co., LTD. Suzhou Lanxin Rubber & Plastic Hardware Co., LTD. Suzhou Lanxin Rubber & Plastic Hardware Co., LTD. Suzhou Lanxin Rubber & Plastic Hardware Co., LTD. The company was founded in 1997, headquartered in Dongguan Shipai. The company has offices in Hong Kong, Taiwan, Suzhou, Beijing and Chengdu. The company has more than 400 employees. The existing self-built industrial park of more than 30,000 square meters. Divided into die-cutting coating, silicone rubber vulcanization molding, screen printing plate, precision hardware four blocks. In 2012, we set up a branch factory in Suzhou, covering an area of about 3000 square meters, which is divided into die cutting, screen printing, vulcanization molding three blocks. Silica gel sealing ring manufacturer is located in No. 904, South Qinfeng Road, Qiandeng Town, Kunshan City, Jiangsu Province, close to Shanghai, Suzhou and other key cities, convenient transportation and superior geographical environment.