Jiuhong silicone rubber focus on professional mixing rubber manufacturers
2024-10-24
Installation and maintenance of additional climbing skirt
The installation of the creepage skirt usually requires the use of special silicone rubber adhesive to bond it with the corresponding porcelain or glass skirt of the insulator at room temperature, and fix it with a lap joint.
2024-10-24
Processing and molding of silicone rubber
The processing and molding of silicone rubber mainly includes two processes of primary vulcanization and secondary vulcanization. The purpose of the first vulcanization is to carry out the crosslinking reaction of the polymer chain; the purpose of the second vulcanization is to carry out supplementary crosslinking, drive off the decomposition products of the vulcanizing agent and other volatile compounds to stabilize the properties of the vulcanizate.
2024-10-24
Classification and Application of Silicone Rubber
Silicone rubber can be divided into high temperature vulcanized silicone rubber (HTV) and room temperature vulcanized silicone rubber (RTV) according to the vulcanization temperature.
2024-10-24
Performance characteristics of silicone rubber
Silicone rubber has good low temperature resistance and can generally work at -55°C, and can reach -73°C after the introduction of phenyl. At the same time, the heat resistance of silicone rubber is also very prominent, at 180 ℃ can work for a long time, slightly higher than 200 ℃ can withstand weeks or longer, instantaneous resistance to high temperatures above 300 ℃.
2024-10-21
Preparation process of compound
Raw material preparation: all kinds of raw gum (such as methyl or vinyl raw gum), accelerator, active agent, anti-aging agent, reinforcing filler, liquid softener, vulcanizing agent and other raw materials are classified and stored to meet the production process requirements of the rubber mixing machine.
2024-10-21
Commonly used flame retardant filler in flame retardant silicone rubber
Carbon black: mainly used to improve the oxygen index of silicone rubber.
2024-10-21
Flame retardant principle of flame retardant silicone rubber
The reason why flame retardant silicone rubber has flame retardant properties is that a silicone rubber flame retardant is added to the silicone rubber raw material.
2024-10-21
Application fields of mixing silicone rubber
Mixing silicone rubber can be widely used in aviation, cable, electronics, electrical appliances, chemicals, instrumentation, cement, automobiles, construction, food processing, medical equipment and other industries, for molding, extrusion and other mechanical deep processing
2024-10-21
Molding Process of Mixing Silicone Rubber
Mixing rubber molding needs to apply a certain temperature and pressure under the action of vulcanizing agent (solid state needs, the purpose is to prevent bubbles). For example, HTV (high temperature vulcanized silicone rubber) needs to be around 165°C, and LSR (liquid silicone rubber) needs to be around 140°C.
2024-10-21
Main features of mixing silicone rubber
Thermal stability and high and low temperature resistance: Mixing silicone rubber can work for a long time at -60 ℃ ~ 250 ℃, with excellent thermal stability and high and low temperature resistance.
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