Styrene-Butadiene Block Copolymer (SBS)

Styrene-Butadiene Block Copolymer (SBS)

ZX-BP-03 (SBS1301-1) is a copolymer made by anionic polymerization from butadiene and styrene in a hydrocarbon solvent using organic lithium as the initiator. It appears as white or yellowish colored porous particles with rod or water shape. It possesses the advantages of both rubber and plastic with excellent low temperature endurance, air permeability, and wet-skid resistance.
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Description
General

 

ZX-BP-03 (SBS1301-1) styrene-butadiene block copolymer is a copolymer made by anionic polymerization from butadiene and styrene in a hydrocarbon solvent using organic lithium as the initiator. It appears as white or yellowish colored porous particles with rod or water shape. It possesses the advantages of both rubber and plastic with excellent low temperature endurance, air permeability, and wet-skid resistance. It is characterized by easy molding and coloring, simple processing, none vulcanization, and low consumption or energy. The follow bits and pieces can be recovered. It is widely used in footwear, adhensives, waterproof coiled materials, modification of higher polymer and road asphalt, cable, and toys.

ZX-BP-03 (SBS1301-1) styrene-butadiene block copolymer is a Styrene Thermoplastic elastomer, is Styrene Butadiene Styrene block polymer, known as the Thermoplastic Styrene block copolymer or Thermoplastic Styrene Butadiene rubber, referred to as SBS.

SBS has the excellent properties of both rubber and plastic, with good elasticity, low temperature resistance, air permeability, temperature slip resistance, coloring, electrical insulation, processing without vulcanization, can be directly used injection molding, molding, extrusion and other processing methods. It is widely used in the fields of asphalt modification, shoe making, plastic modification and adhesive.

 

Composition

 

SBS is a copolymer made by anionic polymerization from butadiene and styrene in a hydrocarbon solvent using organic lithium as the initiator.

 

Product properties

 

Items

Specifications

Evaluation

Appearance

White, free of mechanical impurities and oil

Visual inspection

Volatile components (m%)

≤1.00

GB/T 24131.1-2018

Drying oven method B

Ash content (m%)

≤ 0.20

GB/T 4498.1-2013 method A

MFR(G/10min)

0.01 ~ 0.50

GB/T 3682.1-2018 method A

300% constant elongation stress (Mpa)

≥2.0

GB/T 528-2009

Elongation at break (%)

≥700

GB/T528-2009

Tensile strength (MPa)

≥18.0

GB/T528-2009

Hardness/Shore A

≥68

GB/T 531.1-2008

Tension break permanent deformation (%)

≤40

GB/T 528-2009

Bound styrene content (m%)

28.0 ~ 32.0

SH/T 1610-2011 Appendix C

Yellow index

≤6.0

HG/T 3862

 

Application

 

Site Application

Polymer modification: can be mixed with polyethylene, polypropylene, polystyrene and other plastics modification, improve their physical properties, so that they get a wider range of applications. SBS adhesive industry: can be used in the production of various types of adhesives, especially the hot melt pressure sensitive type, pressure sensitive type, solvent-based adhesives, has strong adhesive force, non-toxic, no environmental pollution, etc Shoemaking industry: SBS can be used in the production of various grades of leather shoes, travel shoes, children's shoes, wearing comfortable, wet resistance, permeability is good, and the advantages of easy coloring, due to SBS does not need vulcanization process is very simple, and has the advantages of leftover material can be recycled.

.Asphalt modification: adding 3%-15% SBS to asphalt can improve the low temperature flexibility and high temperature flow resistance of asphalt. Improving the low temperature flexibility of asphalt can reduce the hard service life of asphalt at low temperature. Improving the flow resistance of asphalt at high temperature can reduce the softening flow of asphalt at high temperature. SBS is to effectively improve the service life of highway and coil materials.

 

Package

 

ZX-BP-03 (SBS1301-1) SBS is packaged in paper bags with polyethylene film liner. The net weight of is 15kg or 20kg per bag.

 

Storage

 

ZX-BP-03 (SBS1301-1) SBS shall not be exposed to flame, moisture and strong sunlight during storage and transportation. The product shall be stocked at room temperature in a ventilated, clean and dry warehouse and shall not be stacked in the open air or exposed to strong sunlight.

 

Safety and handling

Wear appropriate personal protective equipment when responding to spills. Avoid generation of dust. Take precautionary measures against static discharges, earth/ ground all equipment. Do not breathe dust. Use local exhaust over processing area. Considering the risks of electrostatic discharges handling the products in potentially flammable atmospheres should be evaluated carefully. Suitable precautions should be taken at all times especially when emptying bags or other packaging.

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