四川大学高分子专业外语PPT.ppt
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1、Acrylonitrile Butadiene Styrene(ABS)1st team 8th homework by XuWHAT IS ABS resin?ABS resin usually refers to the graft copolymer of polybutadiene rubber and styrene monomer and acrylonitrileAmong it,A represent Acrylonitrile,providing chemical resistance and thermal stabilityB represent Butadiene,pr
2、oviding toughness and resistanceS represent Styrene,providing rigidity and workabilityPhysicochemical propertiesABS resin is tiny yellow solid,with a certain toughness,density of about 1.041.06 g/cm3.It has a strong ability to resist acid,alkali and salt.,and tolerance to organic solvent in a certai
3、n extent.ABS resin can be normal in the environment of-25 60,and has a good formability,the surface of the product is smooth and easy to be dyed and electroplating.Therefore,it can be used for household electrical appliances,toys and other daily necessities.Common Lego building blocks are ABS produc
4、ts.ABS resin and a variety of resin hybrid blends,such as PC/ABS,PVC,PA/ABS,ABS and other produce new properties and new application fields.Such as,ABS resin and PMMA Hybrid,can create a transparent ABS resin.Quality indexDensity:1.031.07g/cm3Impact strength:186330J/mTensile strength:3449MPaHardness
5、(R):62118Elongation:20%40%Volume resistivity:(1.053.60)1016.cmBending strength:5978MPaMartin heat resistance:74-85Product performanceABS resin has appearance of micro yellow opaque,relative density of 1.04.It has good dimensional stability,outstanding impact resistance,heat resistance,dielectric pro
6、perties,wear resistance,good surface gloss,easy coating and coloring,etc.ApplicationApplies to household appliances,such as TV sets,refrigerators lined,vacuum cleaners,etc.,as well as the instrument,telephone,automotive industry with plastic products.Production methodABS resin is the raw material of
7、 butadiene,styrene and acrylonitrile.Via emulsion polymerization process of polybutadiene latex,then the latex with styrene and acrylonitrile by emulsion graft copolymerization,of ABS powder.AS(SAN)emulsion was prepared by suspension polymerization.ABS powder,SAN milk powder and a variety of additiv
8、es are mixed in a certain proportion,the extrusion granulation,and ultimately get ABS resin productsAdvantageImpact resistanceheat resistancelow temperature resistancechemical resistancePackaging and storagePolypropylene film woven bag packaging,net weight 25kg/bag.Can be used by car,train,ship,etc.
9、The process of storage and transportation should be waterproof,dustproof,fireproof,sunscreen,anti pollution etc.Storage should be placed in a dry,well ventilated warehouse,to prevent direct sunlight exposure,should not be open to storage,product should be separated from the pile up.Should not be sto
10、red or shipped with chemicals and flammable materials.It is one of the most rapidly developing varieties of styrene resin,and ABS resin is one of the largest and most widely used polymer blends.Not only has the excellent mechanical properties of tough,hard and rigid,but also has excellent chemical r
11、esistance,dimensional stability,surface gloss,low temperature resistance,stain resistance and processing performance.ABS resin has been developing extremely rapidly since 1947.In the world,the annual demand of ABS resin increases with the speed of 5%8%.In our country,the annual demand is growing at
12、a rate of 15%.ABS resins are generally opaque,the appearance of a pale ivory,with any color;ABS non-toxic,non smelly,tough,hard,a rigid and has good resistance to temperature and creep resistance;ABS waterproof,normal temperature water absorption rate less than 1%,the surface can be polished;ABS wit
13、h excellent mechanical properties,excellent impact strength can used at very low temperatures;ABS excellent wear resistance,good dimensional stability,but also has oil resistance,can be used for medium load and speed of the bearing.The creep resistance of ABS is higher than that of PSF and PC,but it
14、 is smaller than POM and PA.The bending strength and compressive strength of ABS are poor.The mechanical properties of ABS were influenced by temperature.The thermal deformation temperature of 93118 is ABS,and the product can be improved about 10 after annealing treatment.ABS can show a certain degr
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