Project: 10 kt scale SSBR industrial technology development
Award: Sinopec scientific and technological progress first prize in 1999,
Sinopec technical invention first prize in 2012
Project introduction:
The polymer (or copolymer) elastomer, based on styrene and butadiene as monomers and prepared in the process of solution polymerization, is usually named SSBR. The proprietary SSBR technology developed by SINOPEC is an integrated commercial technology with organic lithium compounds as initiators and low carbon aliphatic hydrocarbon as solvent. The key structure parameters of the macromolecule can be adjusted by means of anionic living polymerization processes for preparing a series of SSBR grades with different properties.
SSBR can be widely used in many fields, such as the automobile tyre industry. The automobile tyre made of SSBR has the features of high strength, low heat effect in compression, especially the excellent wet skid resistance and low rolling resistance. These properties of the tyre surely are beneficial to reinforcing traffic security of the automobiles and reducing fuel consumption, and therefore, are suitable to the rapid development in construction of high way.
Table The batch process SSBR product grades
Grades | Mooney viscosity | vinyl wt% | combined styrene，wt% | oil ,phr | Antiager type | main application |
SSBR 2235 | 55±5 | 26±3 | 24±2 | 37.5 | non- Staining | tire |
SSBR 2535A | 55±5 | 47±3 | 25±2 | 37.5 | non- Staining | tire |
SSBR 2535B | 55±5 | 60±5 | 25±3 | 37.5 | non- Staining | tire |
SSBR 2635 | 50±5 | 65±3 | 27±2 | 37.5 | non- Staining | tire |
SSBR 4235 | 55±5 | 25±2 | 40±3 | 37.5 | non- Staining | tire |
SSBR 2305 | 55±5 | 30±3 | 25±2 | 0 | non- Staining | tire, shoes and rubber products |
SSBR 2535E | 65±5 | 50±3 | 21±2 | 0 | non- Staining | tire, shoes and rubber products |
SSBR 2506 | 65±5 | 50±3 | 21±2 | 0 | non- Staining | tire, shoes and rubber products |
SSBR 2234 | 47±3 | 25±2 | 75±2 | 37.5 （naphthenic oil） | non- Staining | rubber shoes, other rubber products |
SSBR 2254 | 43±3 | 25±2 | 75±2 | 50 （naphthenic oil） | non- Staining | rubber shoes, other rubber products |
LBS 3102 | 130±5 | 12±2 | 31±2 | 0 | non- Staining | plastic modification |
Table The continuous process SSBR product grades
Items | YL950 | YL951 | YL952 | YL953 | YL954 | T2835M |
Mooney Viscosity | 60±5 | 50±5 | 60±5 | 65±5 | 60±5 | 65±5 |
vinyl ,wt% | 25±2 | 65±2 | 58±2 | 35±2 | 25±2 | 35±2 |
Combined styrene，wt% | 27±2 | 27±2 | 25±2 | 33±2 | 40±2 | 33±2 |
oil，phr | 0 | 37.5 | 37.5 | 37.5 | 37.5 | 37.5 |
Antiager type | non- staining | non- staining | non- staining | non- staining | non- staining | non- staining |
main application | tire | tire | tire | tire | tire | tire |
