Shanghai Daoqin Plastics Co., Ltd.

此 front full 球知名 inquiry company IHS Markit analysis 指出, 由西欧国家发起 “限 made or use plastics bag and other one-time property plastics products ” and other action, will 进一步推动生 material biodegradable plastics market demand. 2018 year full material biodegradable plastics market ultra- 11 100 million USD, demand amount is 36 10,000 tons, year growth rate 9%, has in 2023 year to 17 100 million USD, demand amount to 55 10,000 tons, its in PLA will important color, food packaging and other field/area development most fast. 2018 year, PLA film in material polymer film market in to 25％ above.

food packaging, one-time property tool (包括杯子, and and other)以 and plastics bag is material biodegradable plastics most large use market, add upper currently very electrical fast 递, this is China “ white 污染” main/primary 源, small in front in 曾提出: biodegradable plastics or 许承担不起 solution “ white 污染” heavy 任, it is currently very good selection.

PLA in market upper application main/primary in in packaging, medical grade and textile （ fiber ）三 large field/area, its in in packaging industry application is 突出. 一起看看 modified PLA in packaging industry application.

packaging in 于保护 product, 方便储运, promote sales, specific related property can and basic requirements lower.

and PE and PP材 material versus ratio, PLA melting point （约180℃） relatively high, processing property relatively good. PLA hardness, force property can and resin （如PS） versus 近, has relatively good transparent degree and good gloss degree and other, comparison combined used as packaging materials. disadvantages comparison 突出, and commonly used high retardant nylon, poly chlorine ethylene （PVDC） and other versus ratio, PLA oxygen gas and water gas retardant property 不足, for 含油脂 food property 不够. add upper PLA tough property relatively 差, Tg relatively low, impact resistant property 差, 注定PLA暂时不适 combined used for resistant property relatively high packaging field/area. in addition, PLA degradation cycle good control, in use in easy different degree degradation or hydrolysis, its property can decline, material cost is PE, PP 2.5倍 above, this 都不容 overlook.

PLA in packaging industry application main/primary for modified PP, PE and PET, in addition 缓冲材 material for 标EPS, EPE and EPU. 鉴于PLA advantages, as is packaging materials can made formed film, foaming material and container, soft packaging bag, plastics bottle, 缓冲材 material, one-time property tool and other, from 形态 看 main/primary is film, its is container and sheet/slice 材. PLA degradation property, retardant property, force property can, optical property can, antimicrobial property, conductive property and pressure electrical property, large more and crystallization degree has 关, if improve/increase PLA crystallization degree, its retardant property, force property can generally improve/increase, processing property, degradation property and transparent degree usually decline. therefore modified PLA as is packaging materials use 时, key/critical in control its crystallization is, make 各方面 property can to most excellent.

（1）PLA film

PLA流延 film （ left ） and di toward tensile film （ right ）

PLA film main/primary has high transparency film, hot shrink film, material blending blow molding film bag and PLA基 composite/compounding material film. PLA film can 代替传统 film material as is new type packaging materials, 如沃尔玛 ultra- 市 requirements using/adopting full degradation PLA film bag substitute/replace 传统 不 biodegradable PE bag, Japan electronics product 也开始 using/adopting PLA nano composite/compounding film packaging.

（2）PLA container

PLA bottle 子（ one-time property ） and water 杯

due to PLA degradation property, by used for production water and bottle, market has 限, injection - tensile - blow molding is PLA bottle type production methods, more application in short futures food packaging upper. PLA bottle transparent degree and retardant oxygen property ratio PE bottle need good, due to PLA creep is and for CO2 low retardant property, PLA bottle application non carbon acid material. NatureWorks utilizing PLA bottle packaging has machine 果汁饮 material, can ensure 60天 货架期. 丹麦Faerch plastics company use PLA packaging low temperature 面食, 肉, and other new food, can to very long shelf life. Europe market launch PLA材质 acid and product packaging bottle, can to related food container standards. has company already 经开出 high transparency property heat resistant grade PLA water bottle, can meet/satisfy transparent also heat resistant （ heat resistant temperature degree ≥100℃） application conditions. inner market will PLA coating in upper made formed film 纸杯, used for various anti water anti food packaging.

NatureWorks company PLA in food material packaging field/area application （官网）

（3）PLA foaming material

PLA foaming tool

PLA foaming material tool material degradation property, can used for production one-time property use tool （如 fast box/case, 方便面碗 and other ） and packaging 衬垫, generate white 污染, especially is PLA heat resistant tool will more add use. “Graft” series one-time property tool using/adopting PLA foaming design is true outer 形, tool environmental protection and property. value attention/notes is, foaming is PLA low cost use types has methods. pure PLA melt strong/high degree relatively low, melt degree for 剪切不 obvious, combined extrusion coating, foaming and other processing 手段, its melt strong/high degree can through separation 子链拓扑 structure, ratio long 链支化 improvement.