Rubber sealing ring products of small elastic modulus, high elongation. It has good air permeability, and good electrical insulation performance. And some rubber has good oil resistance and heat resistance, and cold resistance. It can be used with a variety of materials, and mixed or combined use in order to be able to get a good overall performance.
Silicone rubber sealing ring and strip based on the above excellent performance, so in the current situation is widely used in various industries, it is the high altitude flying industry, the petroleum industry and chemical industry is more widely used, therefore, it is a good sealing product.
What are the structures of special rubber products?
(1) linear structure: rubber factory introduction, uncured rubber due to large molecular weight, no external force, the general structure is, when the external force, external force eliminate fine surface, entangled fine group change degree, molecular chain. Rebound appears, it has a strong trend of recovery, which is the origin of high elastic rubber.
(2) Crosslinked structure: some of the bridging atoms or groups of linear molecules that are connected with each other to form a three-dimensional network of atoms with the behavior of the vulcanization process continue to strengthen the structure, making the free-flowing segment. Decreased elongation decreased plasticity, strength, elasticity and hardness increased, compression became fixed and swelling degree decreased.
(3) branched chain structure: rubber plant introduction, branched rubber chain macromolecules aggregate to form gel gel rubber performance and processing is in the mixing of various components often progress condensate time negative. Liquid silica gel manufacturers tell you that the formation of local blank in the gum sugar area cannot form reinforcement and crosslinking, which has become the weak part of the product.