1、 physical and chemical properties

Chloroprene rubber is a copolymer of chlorine and dibenzene, is between the saturated and unsaturated polar rubber, 1935 in the United States synthesis of the world's first commercial synthetic rubber. Chloroprene rubber relative density (d420) 0.958, melting point -130 ℃, boiling point 59.4 ℃, refractive index (nD20) 1.4583, vapor pressure (20.8 ℃) 26.66kPa. Soluble in ethanol, acetic acid, acetone and other organic solvents, slightly soluble in ethylene glycol, water. In the presence of light, heat, ionizing radiation and catalyst. Its molecular weight is generally 10 to 20 million, the relative density of 1.15 ~ 1.25, glass transition temperature - 45 ℃, with polarity, with a regular molecular arrangement and reversible crystallization performance. In general, neoprene has relatively good ozone resistance (better than NR, SBR, NBR, but worse than EPDM, IIR), weatherability, chemical resistance and anti-aging properties. Oil resistance is worse than NBR. At the same time, it also has good mechanical properties, flame retardant and good low temperature elasticity. It is not resistant to oil-based lubricants are also resistant to oxidation.

2、the temperature range

-40 ℃ ~ 120 ℃ (recommended for: -20-100 degrees), a short time to 125 ℃

3、hardness range

Shore A40 degrees to 90 degrees

4、 color

Black, etc., can also be specified by the customer color. Default is black

5、 application

Chloroprene rubber is widely used, mainly used for wire and cable sheathing, hose, oil-resistant rubber products, heat-resistant conveyor belt, printing sticks, rubber dam, construction seal, refrigeration (refrigerant R22 system) industrial seals, Sealant, bridge bearing, oil field waterproof cap, fire-retardant rubber products, all kinds of sealing ring and chemical equipment, anti-corrosion lining and chloroprene rubber adhesive. In recent years, chloroprene rubber has been developed for new purposes in building waterproofing materials, sealing materials, adhesives, marine development, health care, energy development and people's lives.