Home Bitumen modifiers Linear styrene-butadiene-styrene block copolymer EN CHUAN 701 S

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Linear styrene-butadiene-styrene block copolymer EN CHUAN 701 S

Description

EN CHUAN 701 S is a linear styrene-butadiene-styrene block copolymer (SBS-NOE) from En Chuan Chemical, developed specifically for modifying road bitumen and roofing materials. The proven 3.5% dosage meets road-industry requirements for polymer-modified bitumen (PMB) blends, increasing penetration at low temperatures and the softening point at high temperatures. An analog of Kraton D 1184 in road-binder applications.

Key properties

Linear SBS architecture — optimal for bitumen modification
Proven 3.5% dosage for typical PMB formulations
Non-oil-extended (NOE) — clean dissolution in bitumen
High elasticity and recovery after deformation
Extended service temperature range of the binder
Compatible with other modifiers and resins

Applications

Road construction (PMB). Bitumen modification for asphalt concrete pavements — improved deformation resistance, rutting resistance and extended pavement service life. Analog of Kraton D 1184 in road binders.

Roofing and waterproofing membranes. Bitumen-polymer mastics and roll materials (torch-applied roll waterproofing membranes).

Plastics modification. Impact modifier for PE, PP and PS — improved flexibility and tear resistance.

Mastics and protective coatings. Bitumen-based anti-corrosion and anti-abrasion coatings.

Footwear compounds. Soles for work footwear.

Linear styrene-butadiene-styrene block copolymer EN CHUAN 701 S

parameter

unit

value

Physical and chemical properties:

Molecular structure

—

Linear (S-B-S)

Supply form

—

Pellets

Pellet size

2…6

Density

g/cm³

0.93 (ISO 1183-1)

Styrene content

Butadiene content

Volatile matter content

0.2

Ash content

0.2

Antioxidant content

0.1

Antioxidant content

0,1

Rheological properties:

Melt flow rate (MFR, 190 °C / 2.16 kg)

g/10 min

<1 (ISO 1133-1)

Mechanical properties:

Elongation at break

600 (ISO 37)

Tensile strength

MPa

19 (ISO 37)

Thermal properties:

Vicat softening temperature

°C

65 (ISO 306)

Glass transition temperature (Tg)

°C

−80 (ISO 11357-2)

Typical data for this polymer class, for reference.

The stated values are measured by internal test methods close to the corresponding ISO and GOST standards. The information is for reference only; we recommend using the technical data after agreement with the supplier and signing of a normative technical specification.