What are the common rubber AIDS?

 

Common rubber plasticizer (also known as rubber softener), this is a big category, its category has naphthenic oil, aromatic oil, paraffin oil and so on.

 

Rubber plasticizer, as a plasticizing system of rubber, has been widely used in the process of rubber cooperation and processing. It is the third largest material in rubber industry after raw rubber and carbon black.

Rubber plasticizer, also known as softener, can reduce the force between rubber molecules, make rubber malleable and fluidity, so that it can be extended and extruded.

 

At the same time, it can improve some physical mechanical properties of vulcanized rubber, such as reducing hardness, giving high elasticity and improving cold tolerance.

 

The selection principle of rubber plasticizer should meet the following conditions:

 

1. Good compatibility with rubber.

 

2. Less volatile during oil filling and processing.

 

3. Good processability, operability and lubrication in the process of raw rubber mixing.

 

4. Good photothermal stability.

 

5. Stable quality, abundant source and moderate price.

 

6. Environmentally friendly and pollution-free features.

 

Rubber plasticizers are mainly divided into three types: paraffin, aromatic and naphthyl groups.

 

Because of the poor compatibility with the rubber, the plasticizers in the market are mostly aromatic and naphthyl groups.

 

Aromatic base rubber plasticizer has better compatibility with rubber, but aromatic hydrocarbon oil plasticizer in the market contains a large number of carcinogenic polycyclic aromatic hydrocarbons.

 

This plasticizer releases large amounts of toxic substances into the environment during the production and use of the tires.

 

Therefore, the current market circulation is more environmental protection aromatic hydrocarbon plasticizer.

 

The cycloalkyl rubber plasticizer has the characteristics of paraffin base and aromatic base, good compatibility, no pollution, no toxicity, and many kinds of rubber.

 

And naphthenic base more domestic production enterprises of rubber plasticizer, such as liaohe petrochemical, cnooc bitumen, karamay, cnooc gas taizhou, China gold elephant, panjin north drain, for example, nasri and import.

 

Aromatic base plasticizer is mainly used in the production of rubber products such as butyl benzene, shunding, natural and chloroprene rubber.

 

Naphthenic rubber plasticizer can be used for both the SBS (thermoplastic elastomer) as the main body of the production of high-grade shoes material, adhesive, also can be widely used in butyl benzene, butadiene, natural, ethylene propylene rubber and other white or colored rubber processing, is the production of advanced daily life, the ideal of health class rubber materials.

 

Shi Laji plasticizer used in EPDM rubber (EPDM), environmental protection, it has good compatibility with EPDM, in many industries, such as seals, seal, shockproof, automotive tubing, wire and cable, etc. Have good application.