Products
Liquid Styrene Butadiene Rubber (LSBR)
Properties and Uses
Liquid Styrene Butadiene Rubber (LSBR) is a low molecular weight copolymer of butadiene and styrene with a molecular weight of 2000-10000, which has excellent electrical insulation and physical properties, and is therefore often used in the field of circuit boards, adhesives, sealing materials, etc. LSBR and liquid polybutadiene
(LPB) compared to a higher glass transition temperature and better heat and wear resistance. In the processing of copper-clad laminates, the use of
LSBR replaces LPB and improves the flow of glue during processing.
Technical specifications
|
Product grade |
LSBR-1 |
LSBR-2 |
LSBR-3 |
LSBR-4 |
|
Number average molecular weight |
3000 |
3000 |
5000 |
5000 |
|
Styrene content (mol %) |
8-12 |
15-20 |
8-12 |
15-20 |
|
Vinyl content (wt. %) |
80-90 |
80-90 |
80-90 |
80-90 |
|
Viscosity (45°C, Pa-s) |
< 60 |
< 300 |
< 150 |
< 500 |
|
Volatile matter (%) |
≤ 2 |
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|
Appearance |
Light-colored viscous liquid |
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