Neoprene rubber US main models

by Dongrubber on December 13, 2006 · 0 comments

Model Grade Mooney viscosityML(1+4)100℃ Features Crystallization rate   G GNGNA 50~6242~59 general typesuperior raw rubber stability MediumMedium GW 26~54 Properties combined G & W type, no need for peptizer slow GRTGK FB 30~45(be liquid at 55℃) Anti high crystallization/ adhesion typeGW type processing agent can vulcanize, non-volatile Slow  Slow             […]

Development of neoprene rubber

by Dongrubber on December 12, 2006 · 0 comments

In later 20th Century 20s with the emergence of emulsion polymerization method, neoprene rubber began to have a small amount of production. In 1931 neoprene rubber sheet was sold by the United States DuPont, named ” Dopp Ryan”, and then changed its name to “Neop Lane”. For a long time, the supply of this kind […]

Why neoprene rubber crack growth rate low

by Dongrubber on December 11, 2006 · 0 comments

Neoprene rubber sheet neoprene rubber crack growth rate is very much lower than other diene rubber. There are two reasons as follow: ① Ozonide generated by natural rubber, styrene-butadiene rubber reacting with ozone, forming hemisphere hard lump on the surface of rubber, and gradually grow up to form ozonide layer set piece, at the set […]

Weather resistance of neoprene rubber sheet

by Dongrubber on December 10, 2006 · 0 comments

Wire, cable outer sheath used in outdoor generally adopt neoprene rubber sheet as main material. Neoprene rubber itself has good weather resistance compared to other general synthetic rubber. But they have long-term use in the outdoor, time up to 20 to 30 years. Weather resistance general means to have properties to anti UV resistant, heat […]

Ozone resistance of neoprene rubber sheet

by Dongrubber on December 10, 2006 · 0 comments

Neoprene rubber sheet is a polymer of good ozone resistance. According to the ozone resistance, elastomers can be divided into three categories: ① The elastomer itself has ozone resistance, which has no double bond or less double bonds saturated elastomer. Such as EPDM rubber, chlorosulfonated polyethylene, chlorinated polyethylene rubber and silicone rubber, etc. ② The […]

Nitrile Rubber Introduction 3

by Dongrubber on November 19, 2006 · 0 comments

2) NBR rubber sheeting – polyvinyl chloride (PVC) blending rubber. Its basic features are as follows: (1) Resistance to ozone and weather aging resistance significantly higher than the average nitrile rubber sheets. (2) Flame resistance are better than the average nitrile rubber. (3) The abrasion resistance, oil resistance, resistant to chemicals and so on have […]

Nitrile Rubber Introduction 2

by Dongrubber on November 18, 2006 · 0 comments

(2) Oil resistance and solvent resistance. In ordinary rubber, oil resistance of NBR rubber is the best: nitrile rubber oil resistant base oil, benzene and other non polar solvent, is far superior to natural rubber, styrene butadiene rubber, butyl rubber and so on nonpolar rubber, neoprene rubber is also better than that of polarity neoprene […]

Nitrile Rubber Introduction 1

by Dongrubber on November 17, 2006 · 0 comments

1. Brief introduction of nitrile rubber World nitrile rubber production output is more than 5 hundred thousand tons, about 4% of synthetic rubber. Although nitrile rubber total output is not very big, then its product brand is very complex, over 300 varieties in total. Different nitrile rubber has different production methods, and different contents of […]

What is nitrile rubber sheets?

by Dongrubber on November 15, 2006 · 0 comments

Nitrile rubber sheets is also called NBR or Buna-N, Perbunan. Nitrile rubber is a synthetic rubber copolymer of butadiene and acrylonitrile – ACN. It has trade names including Nipol, Krynac, also Europrene. Nitrile butadiene rubber has physical and chemical properties which vary depending on the polymer’s composition of nitrile. Nitrile rubber sheet is generally resistant […]

Rubber divided into natural rubber and synthetic rubber. Natural rubber is extracted from rubber trees, rubber grass and other plants and going through processing of gelatine; Synthetic rubbers are made of various monomers after the polymerization. Physical properties of natural rubber: Natural rubber at room temperature has high elasticity, plasticity, and very good mechanical strength, […]