Shanghai Daoqin Plastics Co., Ltd.

 PA in property can has below/following excellent disadvantages:  
crystallization material, its advantages lower:  
(1) force strong/high degree high, tough property good, has relatively high tensile strength, pressure shrink strong/high degree.  
(2) fatigue resistance can 突出, more 次反复屈折 still can maintain has force strong/high degree.  
(3) surface light slip, friction coefficient small, wear resistant.  
(4) corrosion resistant, resistant alkali and large more salt liquid, also resistant low acid, machine 油, 汽油.  
(5)无毒, for material 侵蚀呈 inert property, has good antimicrobial, resistant can force.  
(6) heat resistant property strong/high, use temperature degree scope/range wide, can in 45~100℃ lower long use, short time inner heat resistant temperature degree 达120~150℃.  
(7) has excellent electrical properties, tool has relatively good electrical insulation property.  
(8) made parts quality light, easy color, easy molding.  
disadvantages:  
(1) easy water.  
(2) lightfast property relatively 差.  
(3)不 resistant strong/high acid, oxidation agent.  
(4) design technology requirements relatively 严.  
processing requirements:  
1, generally low mold temperature degree, low material temperature degree,  
2, time long,  
3, injection molding pressure large molding conditions.  
PA product types and overall property can:  
PA in main/primary product types is PA6 and PA66, for 主导 位, its is PA11, PA12, PA610, PA 612, another also has PA1010, PA46, PA7, PA9, PA13, new product types has PA6I, PA9T特殊 nylon  MXD6(retardant property resin) and other, PA modified product types amount more, reinforcement PA, mono 体浇铸 nylon (MC nylon), reaction property injection molding (RIM)PA,   aromatic PA, transparent PA, high impact resistance (super tough)PA, electroplating PA, conductive PA, flame retardant PA, PA and its it polymer blending material and alloy and other, meet/satisfy different requirements, as is various structure material, used as metal, and other 传统材 material substitute/replace product.  
PA is most important engineering plastics , output/production volume in large general purpose engineering plastics in 居首位.  
property can: PA is tough property semi transparent or white crystallization property resin, as is engineering plastics PA molecular weight generally is 1.5万~3万. PA tool has very high force strong/high degree, soft high, heat resistant, friction coefficient low, wear resistant loss, lubricated property, property and property, oil resistant, resistant low acid, resistant alkali and generally solvent agent, electrical insulation property good, has self-extinguishing property, 无毒, 无臭, weather resistance good, color property 差. disadvantages is water property large, effect/influence dimensional stability and electrical property can, fiber reinforcement can reduce resin water absorption, make its can in high temperature, high wet lower as. nylon and glass fiber hydrophilic combined property separation good.  
PA in PA66 hardness, rigid property most high, tough property most 差. various PA按 tough property large small is: PA66 
PA property is UL 94 V-2 grade, oxygen index (LOI) is 24%~28%, PA separation understanding temperature degree >299℃, in 449~499℃时会发生自燃. PA melt flow property good, products thick can small to 1 mm.  
PA application  
广泛 used as various machine 械 and electrical appliances parts, its in bearings, gears, slip 轮泵叶轮, sheet/slice, high pressure 密封圈, 垫, base/seat, sleeve/set, tube/pipe, device, 绳索, belt/tape, 砂轮胶 viscous agent , battery 箱, electrical appliances 线圈, cable and other. also has packaging use belt/tape, food use film (熟食 use high temperature film and 清凉饮 material use low temperature film ) output/production volume versus large.  
几 types Common PA flame retardant : 卤/锑 or its it flame retardant system, or poly amine type flame retardant system. from amount degree 说, 卤/锑协同 system still is use most PA flame retardant system. in Europe and 亚洲 一 区, positive in force 于寻找卤素 flame retardant substitute/replace product. usually this substitute/replace system generally in heat stabilized property low or and other issues. for/regarding 红磷 说, also has issues, its is easy product. below/following is nylon in use main/primary types flame retardant 以 and it 们各自 excellent disadvantages.  
(1)含卤 flame retardant system  
its in most important is in outer application most 广 一 types is bromine styrene polymer, it tool has its excellent heat stabilized property, and due to it and PA is melt can mixed, in processing process in tool has very good flow property. in addition, use it made flame retardant PA also tool has excellent electrical property can and relatively good material force property can. this type of flame retardant property in light stabilization property relatively and PA尚不 can full versus 容. another its cost and currently inner application relatively 广 十 bromine ether versus comparison high. another types in PA in application many year flame retardant is can 燃, it is types chlorine flame retardant, tool has relatively high flame retardant efficiency and electrical property can, its in heat stabilized property 方面 局限 property make suitable for processing temperature degree relatively low nylon flame retardant system.  
currently in inner application most flame retardant is bromine ether, due to its relatively high bromine content for PA tool has relatively high flame retardant efficiency, is most 经济 一 types flame retardant. due to it is types filler type flame retardant, for processing flow property and product material force property can has very large negative effect/influence. in addition, its heat stabilized property and light stabilization property 也教差. year, development in nylon flame retardant use types new flame retardant is bromine oxygen 基乙烷, it and bromine ether tool has same bromine content and high flame retardant efficiency, and bromine styrene polymer 一样无DPO(即 谓 二恶英) issues. in addition, it also tool has relatively good heat stabilized property and light stabilization property. its property in it and bromine ether 一样同 filler type flame retardant, and polymer versus property relatively 差, processing flow property and products material force property can relatively 差. in addition and bromine ether versus ratio cost upper rise relatively high.  
(2)无卤 flame retardant system  
PA in application relatively 广 无卤 flame retardant is and poly amine salt type. tool has very high flame retardant efficiency can improvement products resistant electrical property, its and color 方面 局限 property large large made its in PA in application, generally used for PA6 in.  
另一 types in PA in use flame retardant is poly amine salt, main/primary is poly amine acid salt and acid salt. it tool has relatively good flame retardant efficiency, heat stabilized property relatively 差, due to easy 吸潮而 make products in wet ring lower electrical property can relatively 差.