Shanghai Daoqin Plastics Co., Ltd.

         plastics film already development formed is Domestic amount most large, product types most more plastics products 之一, widely used in packaging, electronics electrical appliances, 农业, construction decoration and day use product and other field/area, its output/production volume plastics products output/production volume 20%. from application areas 看, plastics film use most is packaging industry, its is use plastics film, its used for 医药, chemical industry, electrical material, light material and other.

        据悉, China plastics film demand amount year will 以9% above speed degree growth. but also various new material, new equipment and new process 不断 涌现, will make China plastics film product types more 样化, specialized and tool more function composite/compounding film direction development.

         di toward tensile technology (平 film method) tool has product property can good, production efficiency high, quality stability and other advantages, formed is film manufacturing in most important types process technology, in year speed development, formed is various high property can film main/primary production 手段.

         currently upper application most more di toward tensile film di toward tensile polyester / anti-static (AntiStatic BOPET), anti-static di toward tensile polypropylene (PP) (BOPP) is 主流, conductive di toward tensile nylon (BOPA), anti-static di toward tensile polyethylene (PE) (BOPE). di toward tensile polystyrene (PS) (esd BOPS)近几 year development speed, formed is di toward tensile film application important formed separation.

        一, di toward tensile film technology advantages

         plastics film molding methods very more, 如 calendering method, method, blow molding method, tensile method and other. its in, di toward tensile formed is in recent years most 受关注 methods 之一.

         di toward tensile technology is 20世纪70 year 代开始 achieve industrial 化 一 types plastics film processing process, its basic principle is: high poly material raw materials through extrusion machine by add hot melt extrusion formed thick sheet/slice rear, in 玻璃化 temperature degree above, melting point below/following temperature degree scope/range inner (high elastic lower), through machine and machine 时, in outer force function lower, rear toward and toward 进行一定倍数 tensile, from make separation or crystallization in 平行于 film direction upper orientation has 序排列, rear in 拉紧状态 lower hot type, make orientation large separation structure solid 定, rear polymer/macromolecule conductive liquid /永久 anti-static agent coating 处理, most rear cooling and rear 续处理便 can made anti-static transparent film.

         suitable for di toward tensile production plastics film main/primary 包括 polyester, polypropylene (PP), polyamide (PA), polystyrene (PS) and polyamide (PA) film and other. tensile make polymer in polymer/macromolecule function force direction 发生排列 orientation, from to adjustment, improvement polymer/macromolecule polymer poly structure, to 我们预期 various material chemical property can. tensile can separation is mono tensile and di tensile types, front make 链沿一 direction orientation 排列.

         di toward tensile film features is tensile strength high, property good, transparent property high, resistant high low temperature property good, insulation property can good, retardant property high, 无毒无味. non combined food and high product packaging, meanwhile by a large amount of used for electronics industrial product, light sheet/slice, magnetic belt/tape 基材, especially optical film and other is types property can excellent 秀 材 material.

         film di toward tensile > in anti-static coating 布, remove separation orientation outer, its micro structure has relatively large 变化, make its property can and tensile film has obvious difference:

        （1） mechanical properties.

        经 di toward tensile film, its tensile strength, elastic property modulus can improve/increase 几倍, but also its impact strong/high degree, for/regarding PP, PVC, PET tensile film, it and has tensile film tool has obvious difference, especially is in low temperature lower, its impact strong/high degree reduce, its resistant property can excellent 良, in high temperature lower, its property can 也未变差, this make di toward tensile film use temperature degree scope/range very 广.

        （2） thermal properties.

         hot shrinkage property can is di toward tensile film features, utilizing this make its film can used for shrinkage packaging. is make film tool has low temperature shrinkage property, use meanwhile di toward tensile tube/pipe film method especially has 利. this is is in di toward tensile lower can increase its micro structure, but also film is cooling 并处于 tensile lower.

        （3） optical property can.

         film di toward tensile, its transparent property, gloss improve/increase, especially is due to 不会形 formed structure, increase film rate, tool has 不因摩 loss make gloss and transparent property reduce features.

        （4） electrical property can.

         dielectric breakdown voltage, volume resistivity and other electrical property can, in di toward tensile film in has different degree improve/increase. has 时, 伴随发生静 electrical issues.

        （5） gas property.

         crystallization polymer production film di toward tensile, its water 蒸汽, oxygen gas or its it gas 体 透 rate decrease/reduce 1/3～1/2, this in food packaging industry is important.

        （6） anti-static property

         using/adopting long polymer/macromolecule transparent conductive liquid in coating 布处理 rear, make product surface coating has anti coating, as used for surface, effect/influence transparent degree, resistant 靜電效果 more color!

        二, technology development trend

         20 year, China di toward tensile film production development very fast, enterprise overall technology water and production in 国际同行 in already has competition can force. ratio 如连续 polymerization PET melt 直接拉 film process, film speed degree to 400m/min, wide can 达9m, enterprise production can force already ultra- 10 10,000 tons water 平. inner various plastics film large small di production already has strip/profile more.

         currently, inner di production in 崛起, has can independent design, manufacturing film di production 线, production 线规模 and technology water also has 一定 差距. is, in the future di toward tensile film technology development direction tool has below/following features:

        1, toward thin type film, thick type film development

        3μ below/following or 150-300μ thick film has versus large development 空间, especially is thick film application scope in expand large, liquid 晶显示 device and and other 离子显示 plant/unit 保护屏 film for PET thick film use amount versus large, value 关注. cationic film, anti film in automotive and construction material application day 益广泛, make thick film market its vast.

        2, toward more 层共挤 tensile development

         is improve/increase film comprehensive property can, in di production more using/adopting A/B/A, A/B/C甚至 more more structure. using/adopting more 层共挤 can production more function, meet/satisfy different applications film, hot film, high retardant film, UV resistant film and other.

        3, design specialty film di production 线 锂离子 battery film, optical function film and other high function property product need for di toward tensile technology 进行革 new, in coating technology, more low force system and other and other. is improve/increase lower application production efficiency, has more development types amount tensile technology, make separation 子链呈45 degree orientation.

        4, can manufacturing

         data 采集, analysis can force improves, 主流 装备 manufacturing is enterprise ERP system and improves process process control can force, production data analysis function 不断完善, currently large separation newly built plant/unit already has MES, PCS system, through upper lower process process data ratio for analysis, achieve processing process process can diagnosis.

         ratio 如: through for different 位置 连续测 thick 仪采集海 amount process data ratio for analysis, can achieve for extrusion, sheet/slice and tensile and other key/critical process process defect diagnosis.

        距离智 can factory (无灯 workshop)近一步之遥: essence 而言, di toward tensile process is 一 不算 complex process/workflow manufacturing process, currently production 线, sleeve/set equipment and engineering 设施各自 自动化程 degree already very high, need for key/critical several 工序进行革 new, new process and standards, versus achieve can 化无人 factory 并不困 difficult, in is can formed 功迈出 this key/critical 一步.