Impact-modified plastics

Modification of mechanical properties Impact modifier Plasticizer Reinforcing filler Catalyst Vulcanizer Blowing agent Curing agent ... 

Recently, more light-stable rubber modifiers have been developed based on saturated rubbers but the rubber phase still remains the Achilles heel of impact modified plastics and great care is required in formulating polymers for environmental stability if they are to be used in long-life products. 

Uses Emollient, solvent, vise, control agent, lubricant, emulsifier for cosmetics lubricant, emulsifier for metals, leather, textiles carbon source in antibiotic culture broths raw material for engineering plastics impact modifier plasticizer stabilizer solvent for carbon paper, printing ink dyes food emulsifier, stabilizer solubilizer for flavors, vitamin oils pharmaceutical lubricant, emollient, solubilizer, stabilizer in food-contact textiles... 

PVDF-PEMA, and poly(vinyl chloride) (PVC)-nitrile rubber. The immiscible blends include applications such as rubber blends in tires, impact-modified plastics, and coextruded film and fibers [1]. 

C. B. Bucknall, Toughened Plastics, Applied Science Publishers, London, 1977. Contains mid-1970s state-of-the-art information on the science and technology of impact-modified plastics. 

The most commonly encountered impact modified plastic is high impact polystyrene (HIPS). The impact modification is achieved by incorporating discreet domains of a mbber (butadiene) within the polystyrene matrix. The level of butadiene can be varied according to the requirements of the end use. A high level can convert a glassy brittle material into a ductile, tough product. The efficiency of the butadiene to improve impact resistance alone is not solely related to concentration, but is also dependent on the size and... 

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