EPDM manufacturerstell you, three ethylene propylene vulcanization type is how?

EPDM can be vulcanized using organic peroxides or sulfur. However, peroxide cross-linked EPDM has higher temperature resistance, lower compression set and improved vulcanization characteristics when used in the wire and cable industry compared to sulfur vulcanization. The disadvantage of peroxide vulcanization is the higher cost.

　　EPDM manufacturersTo tell you, the cross speed and vulcanization time of ternary B disease vary with the type and content of vulcanization. When Epdm is mixed with butyl, natural rubber, and styrene-butadiene rubber, what factors should be considered when choosing the right EPDM product?

When mixed with butene, the butene saturation is low. In order to adapt to the vulcanization rate of butene, it is best to choose ternary with lower DCPD and ENB content.

When mixed with natural rubber and styrene-butadiene rubber, it is best to choose a ternary bottle with 8% to 10% ENB content to meet the vulcanization speed.

　　EPDM manufacturersTell you, EPDM is a rubber synthesized from ethylene and propylene through solution, and the third monomer (ENB) is introduced. Ternary ethylene rubber is basically a saturated polymer with good anti-aging performance, good weather resistance, good electrical insulation performance, good chemical resistance, and good impact elasticity. The biggest disadvantage of ethylene propylene rubber is the slow curing speed. It is difficult to use with other unsaturated rubbers, self-adhesion and mutual adhesion are not good, and the processing performance is not good.

According to the performance characteristics of ethylene-propylene rubber, the main areas that require aging resistance, water resistance, corrosion resistance, and electrical insulation (such as soft tire sidewalls used in tires, heat-resistant transportation teams, cables, wires, anti-corrosion linings, sealing gaskets, construction Waterproof sheets, door and window seals, household appliance parts, plastic modification) properties and uses of ethylene-propylene rubber.

　EPDM manufacturerstell you, three yuan ethylene propylene rubber modified varieties is how?

Since the late 1950 s and early 1960 s, a variety of modified ethylene and thermoplastic rubbers (such as EPDM/PE) have emerged in the world, providing a variety of varieties and grades for the wide application of ethylene rubber. Modified ethylene propylene rubber is mainly used in bromination, chlorination, sulfonation, maleic anhydride, maleic anhydride, silicone modification, nylon modification, etc. Ethylene propylene rubber has graft, acrylate, etc. Over the years, a large number of polymer materials with good comprehensive performance have been obtained by means of mixing, copolymerization, charging, grounding, strengthening and molecular compounding. Ethylene propylene rubber through the transformation, the performance has also been greatly improved, expanding the scope of application of ethylene propylene rubber.

Brominated ethylene-propylene rubber is treated with a brominating agent on a refiner. The brominated ethylene-propylene rubber can improve the vulcanization speed and bonding performance, but the mechanical strength decreases, so brominated ethylene-propylene rubber is only suitable for the intermediate layer of ethylene-propylene rubber and other rubbers.

Vinyl chloride rubber is made with chlorine through a ternary ethylene rubber solution. The vulcanization speed of ethylene-propylene rubber after chlorination and the compatibility with unsaturated discussion, flame retardancy, oil resistance and adhesive properties have also been improved. The sulfonated ethylene-propylene rubber is dissolved in a solvent and treated with a neutralizing agent in a sulfonated adhesive. Due to the physical and excellent bonding properties of thermoplastic elastomers, sulfonated ethylene-propylene rubber will be widely used in adhesives, coated fabrics, building waterproof lean meat, anti-corrosion lining and other fields.

The grafted ethylene-propylene rubber was grafted to ethylene-propylene rubber at 80 C with toluene as solvent and benzyl perchloride as initiator. The modified ethylene-propylene rubber not only maintains the corrosion resistance of ethylene-propylene rubber, but also obtains the oil resistance corresponding to butyryl-26, and has good physical and mechanical properties and processing properties.

Thermoplastic ethylene-propylene rubber (EPDM/PP) is based on ethylene-propylene-diene rubber and mixed with polypropylene. The product of bringing the ethylene-propylene rubber to the desired degree of crosslinking. The compound not only has the inherent characteristics of ethylene propylene rubber in terms of performance, but also has outstanding thermoplastic injection, extrusion, blow molding and rolling molding process performance.

In addition, modified ethylene propylene rubber also includes chlorosulfonated ethylene propylene discussion, acrylate grafted ethylene, etc.