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Types of Asphalt Pavement
Types of Asphalt Pavement
The asphalt pavement is commonly divided into asphalt concrete pavement, hot mix asphalt gravel pavement, penetrated asphalt pavement, asphalt surface course, in terms of technology and usage. Asphalt concrete pavement Asphalt concrete pavement adopts high quality asphalt, and requires asphalt with higher consistency than other types of asphalt pavement. The adoption of a considerable amount of…
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How to Prepare SBS for Production of Adhesives?
How to Prepare SBS for Production of Adhesives?
Styrene-butadiene-styrene triblock copolymer (SBS) possesses features of both thermoplastics and vulcanized rubber owing to the solubility and thermoplasticity of polystyrene (PS) and the toughness and resilience of polybutadiene (PB). The features result from the incompatibility of thermodynamics between the end of PS molecular chain and the middle of PB molecular chain. The end of PS molecular…
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What is TPE Overmolding?
What is TPE Overmolding?
TPE overmolding generally refers to the injection molding process where TPE materials are molded onto a second materials, typically a rigid plastic such as PP, PS, ABS, PC and PA. It can increase comfort touch, anti slip and impact resistance performance of finished products. Two injection molding processes commonly used for the production of overmolded products are insert molding and multi-shot…
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Technology and Applications of SBS-based Adhesives
Technology and Applications of SBS-based Adhesives
SBS refers to styrene-butadiene-styrene triblock copolymer. It is a type of thermoplastic elastomer, generally called “thermoplastic styrene-butadiene rubber” and well-known as “the third generation of synthetic rubber”. SBS has both plastic and rubbery properties, showing plasticity at high temperature and elasticity at room temperature. It exhibits properties of thermoplastics without…
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SBS Modification by PE / PP / PS
SBS Modification by PE / PP / PS
Why SBS needs to be modified by adding plastic products? This mainly results from its poor processing performance and product properties that can’t meet the practical application requirements. In general, SBS is rarely used in the finished products independently. To satisfy the special requirements of applications and reduce costs, SBS must be modified by adding additives, resins and others. With…
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Requirements for Ingredients in Production of SBS Granules for Shoe Soles
Requirements for Ingredients in Production of SBS Granules for Shoe Soles
SBS, the major raw material for SBS-based TPR footwear, provides strength, elasticity and other performance for footwear. SBS grade YH-815, SBS T171 are frequently used for production of SBS-based TPR footwear. However, the specific grades should be selected based on manufacturers’ requirements for footwear, including costs, performance, sole type, etc. Softening Oil Softening oil is mainly…
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What is the White Substance on the Surface of TPE/TPR Products?
What is the White Substance on the Surface of TPE/TPR Products?
The white substance on the surface of TPE/TPR products is small molecules caused by migration and precipitation. Sometimes, certain low molecular weight additives, such as brighteners, releasing agents, may be added into the modification process of TPE/TPR products. Owing to the poor compatibility with substrates, these additives are generally added by 2~3‰. If excessive additives are added, the…
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How to Deal with the Sticky Texture of TPE/TPR Products?
How to Deal with the Sticky Texture of TPE/TPR Products?
Problem Description Some products made from TPE/TPR granules have sticky texture. Problem Analysis TPE/TPR granules are thermoplastic elastomers produced by compounding SEBS and SBS (worked as substrate), compounding oil, reinforced resins, compatiblizing agents, functional additives, and fillers. Amount of added compounding oil Compounding oil is one of the indispensable constituents of TPE/TPR…
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What is SIS blcok copolymer
What is SIS blcok copolymer
SIS blcok copolymer are based on styrene and isoprene and are the lowest hardness and lowest viscosity of all the styrenic block copolymers. SIS are high performance thermoplastic elastomers with a combination of high strength, low hardness and low viscosity for easy thermoplastic processing as a melt or in solution. SIS block copolymer are ideally suited for formulating pressure sensitive…
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SBS rubber 185 - Styrene Butadiene Styrene block copolymer materials
SBS rubber 185 – Styrene Butadiene Styrene block copolymer materials
SBS rubber 185 – Styrene Butadiene Styrene block copolymer materials SBS rubber 185 DESCRIPTION Thermoplastic elastomer SBS rubber 185 is oil-extended, radiation type, styrene-butadiene-styrene triblock copolymer. Its oil-filled rate is 31%, and styrene content is 32%. It can be injection moled directly due to its high fluidity. YH-185 and YH-815 are both radiation type oil-extended rubber.…
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SBS rubber 165 - Styrene Butadiene Styrene block copolymer materials
SBS rubber 165 – Styrene Butadiene Styrene block copolymer materials
SBS rubber 165 – Styrene Butadiene Styrene block copolymer materials SBS rubber 165 DESCRIPTION Thermoplastic elastomer SBS polymer 165 is non-oil-extended styrene-butadiene-polystyrene triblock copolymer rubber with linear structure and high transparency. The styrene content is 40%. SBS rubber 165 APPLICATION Shoes / Compounding CHEMICAL PROPERTIES Structure: L Styrene Content (%): 40 Oil…
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SBS rubber T171 - Styrene Butadiene Styrene block copolymer materials
SBS rubber T171 – Styrene Butadiene Styrene block copolymer materials
SBS rubber T171 DESCRIPTION Thermoplastic elastomer SBS rubber T-171 is an oil-extended styrene-butadiene-styrene triplex block copolymer specially for shoes with high molecular weight and radiation type. Its oil-extended rate is 33%, and the styrene content of SBS polymer T-171 is 40%. SBS rubber T171 APPLICATION Shoes / Compounding CHEMICAL PROPERTIES Structure: R Styrene Content (%): 40 Oil…
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SBS rubber T161B - Styrene Butadiene Styrene block copolymer materials
SBS rubber T161B – Styrene Butadiene Styrene block copolymer materials
SBS rubber T161B – Styrene Butadiene Styrene block copolymer materials SBS rubber T161B DESCRIPTION Thermoplastic elastomer SBS polymer T-161B is a non-oil-extended styrene-butadiene-styrene triblock copolymer rubber for TPR and asphalt modification with radiation type and high molecular weight. The styrene content is 30%. SBS rubber T161B APPLICATION Adhesive / Shoes / Compounding CHEMICAL…
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SBS rubber T6302H - Styrene Butadiene Styrene block copolymer materials
SBS rubber T6302H – Styrene Butadiene Styrene block copolymer materials
SBS rubber T6302H DESCRIPTION Thermoplastic elastomer(TPE) SBS rubber T-6302H is a special grade styrene-butadiene-styrene triblock copolymerfor for asphalt modification with linear molecular structure and styrene content of 30%. Its molecular weight is higher than SBS polymer 791 while fluidity is a little weaker. SBS rubber T6302H APPLICATION Adhesive / Shoes / Compounding CHEMICAL PROPERTIES…
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SBS rubber 815 - Styrene Butadiene Styrene block copolymer materials
SBS rubber 815 – Styrene Butadiene Styrene block copolymer materials
SBS rubber 815 DESCRIPTION Thermoplastic elastomer SBS rubber 815 is an oil-extended radiation type styrene-butadiene-styrene triplex block copolymer for shoes with high molecular weight. The oil-extended rate of SBS polymer 815 is 10%, and its styrene content is 40%. SBS rubber 815 APPLICATION Shoes / Compounding CHEMICAL PROPERTIES Structure: R Styrene Content (%): 40 Oil Content (%): 10…
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SBS rubber 188 / 188E - Styrene Butadiene Styrene block copolymer materials
SBS rubber 188 / 188E – Styrene Butadiene Styrene block copolymer materials
SBS rubber 188 – Styrene Butadiene Styrene block copolymer materials SBS rubber 188 DESCRIPTION Marked by low molecular weight and high transparency, SBS rubber 188 is polystyrene(S)-polybutadiene(B)-polystyrene(S) triblock copolymer with styrene content of 32%. SBS rubber 188 APPLICATION Adhesive / Shoes / Compounding SBS rubber 188E – Styrene Butadiene Styrene block copolymer…
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SBS rubber 796 - Styrene Butadiene Styrene block copolymer materials
SBS rubber 796 – Styrene Butadiene Styrene block copolymer materials
SBS rubber 796 – Styrene Butadiene Styrene block copolymer materials SBS rubber 796 DESCRIPTION Thermoplastic elastomer SBS rubber 796 is polystyrene(S)-polybutadiene(B)-polystyrene(S) triblock copolymer with good toughness and low-temperature resistance, which can extend retention period of its viscidity. The styrene content of SBS polymer 796 is 20%. SBS rubber 796 APPLICATION Adhesive…
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