Rubber washers generally have a certain lifespan when used, and different materials have different lifespans, which is commonly known as aging phenomenon. So, what are the main manifestations of rubber washers aging? How to repair the aging of rubber washers? How should rubber pads be protected?
1. Aging behavior of rubber washers
There are various manifestations of rubber washer aging, such as stickiness, cracking, hardening, discoloration, embrittlement, and cracking after exposure to sunlight and rain. Outdoor products can become hard and cracked due to atmospheric action. In addition, some may also break due to hydrolysis or be damaged by mold These phenomena are generally aging phenomena.
2. How to Handle Rubber Aging and Stickiness
(1) It can be wiped on the surface with diluent, officially called diluent or solvent oil. It is usually a colorless transparent liquid, commonly known as Lacquer thinner. But it’s important to remember not to touch the thinner as it can corrode the skin.
(2) It can be wiped with Foaming Spirit. Polysiloxane polyalkoxy copolymer, also known as Foaming Spirit and water-soluble silicone oil, is first hydrolyzed by Chlorosilane to produce polysiloxane, and then condensed with polymer. Yellow or brownish yellow oily viscous transparent liquid
3. Protection against aging of rubber washers
The aging process of rubber is an irreversible natural chemical reaction. Like other chemical reactions, it is accompanied by changes in appearance, structure, and performance. We can only delay its aging by studying the aging laws and utilizing them, but cannot achieve absolute prevention. Common protection methods include: physical protection method: methods that try to avoid the interaction between rubber and aging factors, such as adding paraffin to rubber, blending rubber and plastic, electroplating, coating, etc. Chemical protection method: delaying the aging reaction of rubber gaskets through chemical reactions, such as adding chemical antioxidants.
Post time: Jul-03-2023
