Shanghai Daoqin Plastics Co., Ltd.

  what is modified plastics?

in general purpose plastics and engineering plastics upper, through material 理, chemical, machine and other methods, filling, blending, reinforcement and other processing methods, improvement plastics property can or increase function, for plastics flame retardant property, strong/high degree, impact resistant property, tough property and other mechanical properties to improvement and improve/increase, make plastics can suitable in electrical, magnetic, light, hot and other ring conditions lower.

plastics modified technology application scope

1, from raw materials resin production to multiple specifications and product types modified plastics material production;

2, used for has plastics products Raw Materials and molding processing process in.

plastics modified application scope very 广泛, has plastics property can can through modified methods to improvement. plastics appearance, transparent property, density, degree, processing property, mechanical properties, chemical property can, electrical magnetic property can, corrosion resistant property can, resistant aging property, wear resistance, hardness, thermal properties, flame retardant property, retardant property and other 方面.

is reduce plastics products cost, improvement property can, improve/increase function, 都离不开 plastics modified technology.

plastics modified methods

material modified: 原则 upper 不发生 chemical reaction, main/primary is material mixed combined process. in material modified process in 往往也伴随 has chemical reaction 发生.

chemical modified: in polymer separation upper through chemical methods 进行嵌段 copolymer, grafting copolymer, crosslinked and degradation and other reaction, or 者引入 new can 团而形 formed function polymer/macromolecule material.

plastics main/primary modified technology 手段

filling

through to plastics add machine material （ has machine ） powder 末, improvement plastics material rigid property, hardness, heat resistant property and other property can.

filling agent types type more, its features complex.

plastics filling agent (filler for plastics) function:

improve/increase plastics processing properties, material property 质, increase 容积, reduce cost.

plastics increase amount filling agent tool features:

(1) chemical property active 泼, inert property, and resin and other additives defect reaction;

(2)不 effect/influence plastics resistant water property, chemical resistant product property, weather resistance, heat resistant property and other;

(3)不 reduce plastics physical properties;

(4) can a large amount of filling;

(5) versus for density small, for products density effect/influence large;

(6) price versus for low 廉.

reinforcement

1, measures: through in add glass fiber, carbon fiber and other fiber material 质.

2, 效果: can obvious improvement material rigid property, strong/high degree, hardness, heat resistant property,

3, defect effect/influence: 但 very more material 会导致 surface defect and tough property obvious reduce.

4, reinforcement principle:

••  reinforcement material tool has relatively high strong/high degree and modulus;

•  resin tool has many solid has excellent material 理, chemical ( corrosion resistant, insulation, resistant 辐照, resistant high temperature and other ) and processing properties;

•  resin and reinforcement material composite/compounding rear, reinforcement material can to increase resin force or other property can, resin for reinforcement material can to bonding and 传递载荷 function, make reinforcement plastics tool has excellent property can.

toughened

has relatively more material tough property 不够, 太脆, can through add tough property relatively good material or ultra- fine machine material, increase material tough property and low temperature use property can.

toughening agent : is reduce plastics hard rear property, improve/increase its impact strong/high degree and elongation add resin in types additives.

commonly used toughening agent : more is maleic anhydride grafted compatibilizer ）——

ethylene -醋 acid ethylene ester copolymer （EVA),

chlorine polyethylene (PE) (CPE),

acrylonitrile - butadiene - styrene copolymer (ABS),

styrene - butadiene thermoplastic property elastic property (SBS),

ternary 乙丙橡胶(EPDM)......,

都 is used for plastics especially is engineering plastics upper significantly toughening agent.

flame retardant

in relatively more combined, requirements material has flame retardant property, comparison commonly used combined is electronics electrical appliances, automotive industry has flame retardant requirements, generally relatively low. flame retardant can through add flame retardant achieve.

large more plastics tool can property. plastics in construction, furniture, 交通, aviation, aerospace, electrical appliances and other 方面 广泛 application, improve/increase plastics flame retardant property already formed is separation 迫切 课题.

flame retardant : also flame resistant agent, resistant agent or anti agent, easy polymer flame resistant property function property additives; it large more is cycle table/sheet in 第ⅤA(磷), ⅦA( bromine, chlorine ) and ⅢA(锑, aluminum )族元素 化 combined material.

tool has function combined material, combined material and iron combined material and other flame retardant 范畴, main/primary suitable for has flame retardant demand plastics, or anti plastics especially is polymer/macromolecule type plastics 燃烧.

make its time growth, self-extinguishing, difficult 以点燃.

flame retardant principle

1, 吸 hot function

任何燃烧 in relatively short time hot amount is has 限, if can in relatively short time absorption 火源 放出 一部 separation hot amount, that 么火焰 temperature degree reduce, to surface and as used for will already gas can separation understanding formed 自由基 hot amount decrease/reduce, reaction to 一定程 degree made.

in high temperature conditions lower, flame retardant strong/high 烈 吸 hot reaction, absorption 燃烧放出 部 separation hot amount, reduce can material surface temperature degree, has 效 抑 made can property gas 体 生 formed, retardant 止燃烧 蔓延. Al(OH)₃ flame retardant flame retardant mechanism is through improve/increase polymer hot 容, make its in to hot separation understanding temperature degree front absorption more more hot amount, from improve/increase its flame retardant property can. this category of flame retardant separation its combined water 蒸汽时 a large amount of hot features, improve/increase its flame retardant can force.

2, 覆 cover/cap function

in can material in add flame retardant rear, flame retardant in high temperature lower can formed 玻璃状 or stability foam cover/cap 层, oxygen gas, tool has thermal insulation, oxygen, retardant can gas toward outer function, from to flame retardant 目.

如 has machine retardant type flame retardant hot can generate structure more stability crosslinked solid material or carbon 化层. carbon 化层 形 formed 一方面 can retardant polymer 进一步 hot understanding, 另一方面 can retardant its internal hot separation understanding generate material gas versus and process.

3, 抑 made reaction

according to 燃烧 链 reaction 理论, 维持燃烧 需 is 自由基. flame retardant can as used for gas versus 燃烧区, 捕捉燃烧 reaction in 自由基, from retardant 止火焰 传播, make 燃烧区 火焰 density decline, most make reaction speed degree decline 直至终止.

如含卤 flame retardant, it temperature degree and polymer separation understanding temperature degree same or versus 近, polymer hot separation understanding 时, flame retardant meanwhile 挥发出. 此时含卤 flame retardant and hot separation understanding material meanwhile gas versus 燃烧区, 卤素便 can 够捕捉燃烧 reaction in 自由基, from retardant 止火焰 传播, make 燃烧区 火焰 density decline, most make reaction speed degree decline 直至终止.

4, 不燃 gas 体窒息 function

flame retardant hot separation understanding 出不燃 gas 体, will can material separation understanding can gas concentrated degree to lower below/following. meanwhile for 燃烧区 inner oxygen concentrated degree tool has dilute function, retardant 止燃烧 继续进行, to flame retardant function.

plastics flame retardant rating

can property UL 94 and other grade —— is application most 广泛 plastics material can property can standards. it use evaluation material in by rear can force. according to speed degree, time, resistant can force and is 否燃烧 can has multiple methods.

plastics flame retardant rating:

由HB, V-2, V-1, V-0, 5VB  toward 5VA逐 grade increase.

HB: UL 94 standards in most low flame retardant rating.

V-2, V-1, V-0, 5VB , 5VA flame retardant standards

resistant 寒（ weather resistant ）

generally plastics in low temperature lower resistant can force, due to plastics solid has low temperature property, make plastics in low temperature lower 变脆, therefore automotive plastics parts, generally requirements resistant 寒.

weather resistance : is plastics products to cationic light 照射, temperature degree 变化, 风吹雨淋 and other outer conditions effect/influence, 而出现 褪 color, color, crazing, powder and strong/high degree decline and other series aging phenomenon.

紫 outer 线照射 is make plastics aging key/critical factors.

针 for various material and different use made various weather resistance methods, various aging test, 模拟天然 gas conditions, experiment/testing.

coating weather resistance experiment/testing also large gas experiment/testing, coating material for large gas resistant property.

leather weather resistance can in 模拟自然 gas weather resistant experiment/testing 箱（ or aging 箱, accelerated weather resistant 仪） inner 进行测定.

plastics alloy

plastics alloy is utilizing material blending or chemical grafting, copolymer methods, will types or multiple material made formed high property can, function 化, specialized types new material, to improvement types material property can or tool types material features 目.

plastics alloy 广泛 used for automotive, electronics, precision device, office equipment, packaging materials, construction material and other field/area.

it can improvement or improve/increase has plastics property can reduce cost.

general purpose plastics alloy : 如PVC( polyvinyl chloride (PVC) ), PE( polyethylene (PE) ), PP( polypropylene (PP) ), PS( polystyrene (PS) ) alloy, use 广泛, production technology by 普遍掌握.

engineering plastics alloy : engineering plastics ( resin ) blending material, main/primary 包括以PC, PBT, PA, POM( polyoxymethylene (POM) ), PPO, PTFE( PTFE ) and other engineering plastics is blending system, and ABS resin modified material.

PC/ABS alloy output/production volume year 都以10% left right speed degree growth, its increase speed in plastics field/area in in front 列. currently, PC/ABS alloy research already formed is polymer/macromolecule alloy research hot 点.

modified plastics main/primary fine classification 别

lower table/sheet is modified plastics main/primary fine classification 别, 消费群体 and market application 情况.

1, flame retardant resin type

flame retardant plastics product can large large decrease/reduce short 路, 载, water and other 情况时 generate 火灾 风险.

2, reinforcement toughened resin type

main/primary separation is weather resistant toughened PP specialized material, glass fiber reinforced thermoplastic property plastics and other product.

1） weather resistant toughened PP specialized material : weather resistant toughened PP specialized material is types tool has engineering plastics features polypropylene (PP) new material, tool has low temperature tough property good, molding shrinkage small, rigid property high, weather resistance strong/high and other advantages, main/primary used for resistant gas 候, outer 线 户 outer ring 境. its main/primary 消费群体 has home appliances enterprise, automotive parts enterprise and other.

2） glass fiber reinforced thermoplastic property plastics type : product main/primary has glass fiber reinforced AS/ABS, glass fiber reinforced PP, glass fiber reinforced nylon,   glass fiber reinforced PBT/PET, glass fiber reinforced  PC, glass fiber reinforced PPE/PPS and other. its main/primary 消费群体 has electrical parts enterprise, machine 械零部 parts enterprise, power tools enterprise, tool enterprise and other.

3, plastics alloy type

main/primary separation is PC alloy, PVC alloy and polyester alloy and other. 　　

PC alloy product features : impact strong/high degree high, resistant creep property, heat resistant, water absorption low, 无毒, electrical property excellent and other features.

PC alloy application : automotive surface sheet/plate, machine and office 室自动化 equipment, power tools outer housing/shell, electrical and other.

PVC/ABS alloy : 以PVC and ABS is 基体, add toughening agent, lubricant, stabilizer, flame retardant and other multiple modifier production formed.

property can advantages : excellent force property can, weather resistance can, processing property can, products surface gloss good, injection molding, extrusion good, is types property ratio is excellent alloy material.

application scope : can substitute/replace flame retardant weather resistant ABS, PC and other, used for home appliances outer housing/shell, electrical appliances 开关, electrical table/sheet outer housing/shell, 灯饰材 material, 通讯网络, building materials and other 方面.

polyester alloy : tool has excellent mechanical properties （ resistant fatigue ）, dimensional stability, chemical resistant agent, resistant ring force cracking can force,

application scope : automotive, home appliances, power tools and other field/area.

4, function masterbatch type

main/primary is high impact resistance polystyrene (PS) toughened flame retardant masterbatch material.

function masterbatch features ——既 can reduce production cost also can improve/increase product quality.

1, meet/satisfy UL 94, IEC-65 and GB8898 and other standards for electrical appliances, electronics product flame retardant requirements;

2, improvement HIPS resin tough property, processing flow property and demolding property;

3, 赋予HIPS resin color.

modified plastics development outlook/prospects ——三 large 变化

（1） general purpose plastics engineering plastics 化

尽 tube/pipe engineering plastics new product types increase, 并不断开拓 application areas, but also due to production plant/unit expand large, cost reduce. is, in modified equipment, modified technology development formed 熟 今天, general purpose thermoplastic property resin through modified tool has engineering features, already 经抢占 部 separation engineering plastics application market.

（2） engineering plastics high property can 化

随 国 inner automotive, electrical, electronics, and machine industrial development, modified engineering plastics demand will large upper rise, various high strength heat resistant type engineering plastics will to application.

（3） specialty engineering plastics low cost 化

polyphenylene sulfide (PPS) （PPS）, polyimide (PI) （PIM）, polyether ether ketone （PEEK）, polysulfone (PSU) （PSF） and liquid crystal polymer (LCP) （LCP） and other high property can engineering plastics, due to tool has electrical property can good, high temperature resistance and dimensions stability and other features, has also tool has very good flame retardant property, resistant property, chemical resistance and mechanical properties, therefore in electronics electrical appliances, automotive, machine electrical table/sheet, home appliances, aviation, coating material industry, chemical industry and 火箭, and other 尖端科技 field/area tool has 越 越 important application.