Q:Properties and specific uses of various rubbers

Natural rubber is mainly derived from the Hevea tree. When the epidermis of this rubber tree is cut open, it will shed milky juice. It is called latex, and the latex will be natural rubber when it is condensed, washed, molded and dried.

Q:Rubber products on tiles, why tiles yellow?

Rubber products generally contain operating oil, the role is to make rubber easier to process and soft. But the oil runs easily to the surface of the rubber, so it makes the tiles yellow.

Q:What about the Poisson's ratio and modulus of elasticity of three yuan ethylene propylene rubber (EPDM)?

The Poisson's ratio and modulus of elasticity of three yuan ethylene propylene rubber (EPDM) are approximately:Rubber elastic modulus 0.0078GPa, Poisson's ratio 0.47.

Q:What's the difference between natural rubber and three yuan ethylene propylene rubber?

The glass transition temperature of natural rubber is -72 Deg. C, plastic flow temperature is 130 degrees centigrade, start decomposition temperature is 200 degrees centigrade, intense decomposition temperature of 270 DEG C. When natural rubber is vulcanized, its Tg rises, and no more viscous flow occurs.

Q:How do you remove the black dirt on the rubber?

You should be rubber silicone, most of all is blackTry rubbing it with diluted alcohol.

Q:What about the smell of smoked rubber products?

The curing agent and accelerator taste, rubber itself is tasteless, sulfur curing agent debris less is better, if no sulfur, with peroxide. Oil will also produce a flavor, rubber Odor Remover can be removed, in fact, that is, some spices, oh!Now there is a special rubber deodorant in the market, you may as well try.Can buy some activated carbon in the box, the cost is not high, but also long lasting odor.

Q:Will the rubber ring of the thermos bottle be harmful to the human body?

For the requirements of thermos bottle rubber gasket Technology: 1, the appearance of white translucent, the use of non yellowing; 2, non-toxic, tasteless, no odor produced by boiling water after 30MIN; 3, the product is soft, the hand 1 times of fracture elongation, small deformation.

Q:How can I get rid of the rubber?

You smell the smell from the vulcanized rubber residues, not much of the flavor is generally placed in a cool ventilated place, you can, and if the smell is large, you can use rubber deodorant, supermarkets generally sell

Q:Silicone is silicone rubber? Extracted from there?

Generally speaking, silica gel can be divided into two categories: organic silica gel and inorganic silica gel according to their properties and components. According to its composition, it is divided into extruded silica gel and molded silica gel.

Q:What advantage does ethylene propylene rubber with three yuan compare to two yuan ethylene propylene rubber?

Propylene rubber can be divided into two yuan ethylene propylene, three yuan ethylene propylene, modified ethylene propylene and thermoplastic ethylene propylene. Ethylene propylene rubber in olefin copolymerization of ethylene and propylene as binary ethylene propylene rubber; prepared three EPDM with ethylene, propylene and a small amount of non conjugated diene monomer copolymerization. The molecular chain of ethylene propylene rubber, ethylene and propylene monomer showed irregular arrangement, lost the regularity of polyethylene or polypropylene structure, thus becoming the elastomer, because three EPDM diene in the side chain, so the three rubber can be used not only sulfur curing also maintained, various characteristics of two yuan rubber.