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SBR The rubber material is not easy to burn and overvulcanize, and has good vulcanization flatness. Wear resistance, heat resistance,oil resistance and aging resistance are better than natural rubber. Good high temperature wear resistance, suitable for passenger tires. After the molecular weight drops to a certain level during processing, it will no longer decrease, so it is not easy to over-refined, and the plasticity is uniform. Vulcanized rubber hardness changes little. Increasing the molecular weight can achieve high filling. Oil-extended styrene-butadiene rubber has good processing performance. It is easy to use with other unsaturated general-purpose rubbers, especially with natural rubber and butadiene rubber rubber .
testing Item | Value | Test Method | |
Volatile matter(%) | 0.75-0.90 | GB/T6737 | |
Ash content | ≤0.50 | GB/T4498A | |
Organic acid(%) | 4.50~6.75 | GB/T8657A | |
Soap content(%) | ≤0.5 | ||
Combinated Styrene content(%) | 22.5~24.5 | GB/T8658 | |
Raw rubber mooney viscosity ML(1+4)100ºC | 44~55 | GB/T1232.1 | |
Compounded rubber mooney viscosity ML(1+4)100ºC≤ | 93 | ||
300% Stretching Stress (145ºC)/MPa | 25min | 14.7~19.6 | GB/T8656A |
35min | 20.6±2.5 | ||
50min | 21.5±2.5 | ||
Tensile strength (145ºC, 35min)/MPa | ≥24.5 | ||
Elongationg at break (145ºC, 35min)/% | ≥330 | ||
Heat Distortion Temperature,@0.45MPa(66 psi) | ºC | ASTM D648 | 77 |
Haze | % | < 1.0 | |
Transmittance | % | ASDM D541 | 91 |
Refractive Index | ASDM D542 | 1.56 |
our company is located in Shijiazhuang City,Hebei Province, China, devoting itself to the independent research and development, manufacturing and service of plastic raw materials, and provides high-quality plastic products for the plastic manufacturing industry. The main products include: plastic masterbatch,engineering plastic,general-purpose plastics, thermoplastic elastomer,such as EVA,TPU,PET,PE,PS,etc. We can customize and develop various corresponding products according to customers' special requirements, and provide customers with strong technical support and a complete set of industry solutions. The company is based on honesty, quality first, active development, high-quality service for the purpose, more professional spirit, the concept of responsibility to serve the majority of customers
1.Are you trading company or manufacturer?
We are factory.
2.Do you provide samples?
Of course,we supply 1kg-2kg free sample,customers just pay for the freight only.
3.How about the price? Can you make it cheaper?
We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.
4.Are you able to deliver on time?
Of course!we specialised in this line for many years,many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
5.What are your payment terms ?
We usually accept T/T,L/C for payment.
6.Do you accept customization?
yes,the specification,packaging and logo can be customized.
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