Rubber Xi, ng Ji a o

English Translation: Rubber

[2] basic explanation

[rubber] extracted from rubber trees, rubber grass plant latex, after processing are made with elastic, insulation, water impermeability and air material

Explain in detail

Polymer compound with high elasticity. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is extracted glial after processing made from rubber trees, rubber grass and other plants; synthetic rubber is composed of various monomers through polymerization and. Rubber products are widely used in industry or in all aspects of life.

[editor this paragraph]

Rubber formula

Different rubber match agent should be appropriate to the reference formulation, as follows;

The main rubber adhesive Zinc Oxide stearic ester antioxidant enhancer sulphur black Magnesium Oxide specific surface area of carbon black is very important to study,

1 NR (natural rubber) 10052 (PBN 1) (DM 1) 2.5

2 SBR (Ding Bensongxiang) 10031 (NS 1) 1.75 (furnace 50)

3 CR (neoprene) 10050.5 (D2) (NA-22 0.35) (SRF29) 4

4 IIR (Ding Ji) 10053 TMTD 11.75 (HAF50)

5 NBR (Ding Jing) (10051 DM 11.5 gas 40)

6 BR (Shun Ding) 10032 (103 Oil 15) NS0.9 1.5 (HAF60)

7 IR (isoprene) 10052 NS0.7 2.25 (HAF35)

8 EPDM (three yuan) 10051 (naphthenic oil 15) M0.5TMTD1.5 1.5 (HAF50)

9 CSM (CSPE) 100 black SRK40 litharge 25DM0.5DPPT 2 white magnesium oxide Pentaerythrityl 4DPPT2 3

10 CIIR (chlorinated Ding Ji) 10031 DM2TMTD1 (HAF50) 2

11 PSR (polysulfide) 100100.5 DM0.3DPD0.1 (SRK60)

12 ACM (acrylate) 100 FEF60 stearic ester potassium 0.75 anti RD1 1.75 sodium stearate sulfur 0.25

13 PUR (polyurethane) 100 ancient Malone 15M1 DM4 promoter Caytur4 0.35 sulfur 0.75 cadmium stearate 0.5HAF30

14 CO (epichlorohydrin) 100 stearic acid Pb 2 FEF30 red lead 1.5 antioxidant NBC2 accelerator NA-22 1.2

15 FKM (FKM) 100 crack crack carbon sub heat ((MT) 20 Magnesium Oxide 15 curing agent Diak3* 3.

16 Q (silicon rubber) 100 curing agent BOP, gas phase method, structure controlling agent.

Three interchangeable relationship promoters,

DM 1 = = "CZ 0.5-0.61

DM 1 = = "M 0.52-0.8

DM 1 = = "NOBS 0.63-0.69

DM 1 = = "TMTD 0.08-0.10

NOBS 1 = = "DM 1.43-1.6

NOBS 1 = = "TMTD 0.1

NOBS 1 = = "M 0.7-0.75

CZ 1 = = "NOBS 1.2-1.3

Rubber is divided into natural rubber and synthetic rubber. The main source of natural rubber in Hevea tree, when the rubber tree skin was cut open, will be out of milky white sap, called latex, latex by agglomerating, washing, shaping, drying to obtain the natural rubber. Synthetic rubber is prepared by artificial synthesis method, using different materials (monomer) can be synthesized out different kinds of rubber. 1900 ~ 1910 chemist C.D. Harris (Harris) determination of the structure of natural rubber is a polymer of isoprene, which opened the way for the synthetic rubber. In 1910 the Russian chemist SV Lebedev (Lebedev, 1874 - 1934) using sodium as the initiator to make 1, into small sodium rubber - butadiene polymerization of 3, later successively appeared a lot of new varieties of synthetic rubber, such as polybutadiene rubber, styrene butadiene rubber chloride Ding Xiangjiao, etc.. Synthetic rubber production has greatly exceeded the natural rubber, which is the biggest production of styrene butadiene rubber.

General rubber

Refers to glue a partially or fully replace natural rubber in use, such as styrene butadiene rubber, butadiene rubber, isoprene rubber, mainly used in the manufacture of tyres and rubber products. General rubber demand is big, the main varieties of synthetic rubber.

Styrene butadiene rubber

Styrene butadiene rubber [1] is composed of styrene copolymerization of butadiene and the general synthetic rubber production, is the largest, with emulsion polymerized styrene butadiene rubber, solution polymerized styrene butadiene rubber and thermoplastic rubber (SBS).

Polybutadiene rubber

Is prepared by the solution polymerization of butadiene, butadiene rubber has excellent cold resistance, abrasion resistance and flexibility, but also has better ageing resistance. Butadiene rubber most used in the production of tires, used in the manufacture of cold products, a small part of the buffer material and adhesive tape, rubber shoes. Butadiene rubber drawback is the tear resistance of the cross, wet skid resistance performance is not good.

Isoprene rubber

Isoprene rubber is isoprene rubber referred to, the use of solution polymerization production. Isoprene rubber and natural rubber, flexibility and good abrasion resistance, excellent heat resistance and good chemical stability. Isoprene rubber (raw ago) intensity was significantly lower than the natural rubber, but uniform quality, processing performance is better than natural rubber. Isoprene rubber can replace natural rubber manufacturing truck tire and off-road tires can also be used in the production of various rubber products.

Ethylene propylene rubber

Ethylene propylene rubber to ethylene and propylene as the main raw material to synthesize, aging resistance, electrical insulation resistance and ozone resistance outstanding. Ethylene propylene rubber can be a large number of oil filled and filled with carbon black, product prices low, ethylene propylene rubber with good chemical stability, abrasion resistance, elasticity, resistance to oil and styrene butadiene rubber close. Application of ethylene propylene rubber is very wide, can be used as the tire side, adhesive tape and inner tube, automobile parts, can also be used for wire, cable sheathing and a high voltage and ultra high voltage insulation material. Can also be used for making rubber overshoes, sanitary products and other light colored products.

Chloroprene rubber

It is based on Chloroprene as main raw materials, through a homopolymer or a few other monomer copolymer. Such as high tensile strength, resistance to