Shanghai Daoqin Plastics Co., Ltd.

当谈 to plastics material 时, polyvinyl chloride (PVC) （PVC） and ethylene is by mixed 淆 两 术语. however, PVC is ethylene 基 一 types type type, also has other types tool has different property can and application ethylene polymer. in is 你 特定 application selection combined 适 材 material 时, understanding this type type ethylene between difference important. in in, will discussion polyvinyl chloride (PVC) and ethylene between difference, different type type ethylene 基, 并讨论 it 们 独 features can and application.

1. ethylene and polyvinyl chloride (PVC) is 一样 吗?

polyvinyl chloride (PVC) （PVC） is types chlorine ethylene mono polymerization formed ethylene plastics. it is types combined formed plastics polymer, used for various application, construction material, insulation material, packaging and medical equipment. PVC以 its flexibility property, resistant use property and cost 效益而闻名.

however, in chemical in, 术语“ ethylene 基”实际 upper tool has more 广泛 含义, from ethylene various different thermoplastic property combined material, in its chemical structure in has ethylene 基（ chemical is -CH=CH2）. ethylene is carbon between di 键, ethylene polymer property can. remove PVC outer, “ ethylene 基”材 material also 包括:

• ethylene-vinyl acetate (EVA) ester （EVA） is bonding agent, film and electrical coating material formed separation.

• polyethylene (PE) acid ethylene ester （PEVA） is polyethylene (PE) and EVA copolymer, used for and bag.

• poly acid ethylene ester （PVAc）, Common paint and bonding agent in, 如白胶.

• polyethylene (PE) alcohol shrink aldehyde （PVB）, used for safety film sheet/slice 夹层玻璃.

PVC and other ethylene difference in add chlorine separation 子（PVC and PVDC in chlorine material “C”）. PVC large more ring 境健康 issues is chlorine 引起, in PVC manufacturing and process in generate 二恶英, this is types high degree 致癌 化 combined material.

therefore, PVC is types ethylene polymer, non has ethylene polymer is PVC. also has many other type type ethylene polymer, poly acid ethylene ester （PVA）, poly chlorine ethylene （PVDC） and polyethylene (PE) alcohol （PVOH）.

2. remove PVC, also has other type type ethylene 基吗?

说 to ethylene 基, large more can can 会立即想 to polyvinyl chloride (PVC) （PVC）, is it is most use and most ethylene type type 之一. however, upper 述, PVC并不 is 唯一存 in ethylene polymer type type. upper, also has many other type type ethylene plastics tool has property can and application, make it suitable for different applications. in in, will discussion other type type ethylene 基, focus/key point introduction it function and application.

2.1. poly chlorine ethylene

定义:   poly chlorine ethylene or poly chlorine ethylene （PVDC） is chlorine ethylene homopolymer. PVDC由偏二 chlorine ethylene mono polymerization formed, formed crystallization degree high, heat stabilized property good polymer.

chemical 式: （C2H2Cl2）n, its in n is polymer in heavy mono 元 数 amount.

melting point: and other ethylene polymer versus ratio, poly chlorine ethylene （PVDC） melting point versus for relatively high, scope/range is 190°C至230°C（374°F至446°F）.

features: PVDC tool has make its 独特而 has value several 特征:

• retardant property can: PVDC can anti gas 体进入, oxygen gas, nitrogen gas and oxidation carbon, and water gas and material. this is due to its high structure, it 创造 一 致密且紧密堆积 retardant 隔, from retardant material in separation 子 运动.

• chemical resistance: PVDC for various chemical product tool has very strong/high resistant property, acid, alkali and has machine solvent agent.

• heat stabilized property: PVDC tool has 约200°C high melting point, therefore can high temperature 而不会失 its mechanical properties.

• weather resistance: PVDC for outer 线辐射 and weather resistance tool has very strong/high resistant force. time 推移, it 不会变黄 or 变脆, make in poor ring conditions lower can maintain its appearance and mechanical properties.

• electrical properties: PVDC is types excellent insulation 体, tool has low dielectric constant and low toward loss consumption.

• easy processing: PVDC easy through various methods processing, extrusion, injection molding and blow molding. therefore, this type of material is manufacturing various product hot selection.

application:

• 纸张, aluminum or plastics film upper coating

• 药 product, medical devices and industrial chemical product packaging.

• electrical cable insulation and other

• textile product coating can anti water, and 污渍. it 也经常 used for manufacturing outer clothing/apparel and inner 装潢.

2.2. poly acid ethylene ester

定义: poly acid ethylene ester （PVAc） is acid ethylene ester mono polymerization formed combined formed polymer. it is types white thermoplastic property polymer, 无味且 water solvent property.

chemical 式: poly acid ethylene ester chemical is （C4H6O2）n, its in n is polymerization degree.

melting point: PVAc melting point according to polymerization degree 而变化. usually, PVAc melting point in 160-210°C between.

poly acid ethylene ester due to its property can used for many industrial and application:

• solvent understanding property: PVAc极 easy solvent water, is most combined water property bonding agent, coating material and emulsion material. it easy solvent cold water, formed transparent color solvent liquid.

• transparent degree: PVAc is types transparent polymer, can through increase polymerization degree or add increase agent improve/increase its transparent degree.

• flexibility property: PVAc is types flexible polymer, can very easy made formed various 形状. it tool has very high elastic property, this it can by tensile, rear to 原 形状.

• low property: PVAc无毒且操 as safety, therefore it used for product, 如发胶 and 指甲油, its in safety is key/critical factors.

• UV resistant property: PVAc tool has good UV resistant property, can long time in cationic light lower 而不会变黄 or degradation.

application: PVAc in industry in has many application, 包括:

• bonding agent: various industry bonding agent, 如木工, and packaging and textile product. it used for various bonding agent, 包括学校胶, 白胶, and construction 胶.

• coating: and textile industrial in coating due to its transparent degree and good force. it also used as metal and plastics and other various surface coating.

• textile product: improve/increase process in material hardness factors.

• emulsion: PVAc used for production emulsion, used for paint, coating material and bonding agent and other industry. PVAc emulsion used as water property coating material and bonding agent in bonding agent.

• packaging: PVAc due to its transparent and bonding property, used for manufacturing packaging materials, shrinkage film and packaging film.

• 化妆 product: 发胶, 指甲油 and 睫毛膏 and other product, is it tool has good bonding property can and low property.

2.3. polyethylene (PE) alcohol

定义: polyethylene (PE) alcohol （PVA） is acid ethylene ester polymerization rear hydrolysis to polymer 衍生而 water solvent property combined formed polymer. it is types more function polymer, due to its property can, in many industry in has application.

chemical 式: PVA is ethylene alcohol mono heavy mono formed polymer. PVA chemical is （C2H4O）n, its in n table/sheet polymerization degree. polymerization degree can very large, from 100 to 5000, specific 取决于 most product features.

melting point: PVA usually has mono melting point, in 约200°C（392°F）时开始 separation understanding. through will crosslinked agent polymer structure in, can improve/increase PVA separation understanding temperature degree.

polyethylene (PE) alcohol （PVA） tool has multiple features, make its formed is many industry in more function has use polymer.

• water solvent property: PVA极 easy solvent water, make its can used for need water solutions application. it can solvent understanding in has machine solvent agent in, 包括酒精, ethylene glycol and 甘油.

• formed film can force: PVA solvent water or other solvent agent rear drying rear can formed thin transparent film. this film tool has good tensile strength and flexibility property, usually used for packaging application.

• retardant property: PVA film tool has good gas and retardant property. it also can as is anti and anti water retardant 隔.

• 生 material degradation property: PVA is can material degradation, this it can by micro material separation understanding formed more simple combined material.

• chemical resistance: PVA resistant large more has machine solvent agent, and 油脂, therefore in need chemical resistance application in formed is 首选

• heat stabilized property: PVA in room temperature lower versus for stability, in 200°C left right separation understanding. through will crosslinked agent polymer structure in, can improve/increase its heat stabilized property.

application: polyethylene (PE) alcohol （PVA） due to its property can in many industry in has many application.

• medical application: PVA due to its material versus property and water solvent property, in medical industrial in used as 伤口敷 material and to system.

• construction: bonding agent and agent is has PVA Common use repair product.

• 人护理 and use product: polyethylene (PE) alcohol improvement various product （如保 wet and agent ） in active property chemical material distribution. in addition, it for color and 脱皮面 film has combined function, reinforcement viscous 附化妆 product force.

• 生 material 医学: polyethylene (PE) alcohol used for production various material product, 包括手术线, 隐形眼镜 and 伤口敷 material. research 人员称, PVA can used for manufacturing device 官.

• 造纸: PVA is types more can 靠, more resistant use powder substitute/replace product. although can solvent water, it has improve/increase strong/high degree and resistant use property. PVA also reinforcement in 喷墨纸 upper absorption water property ink can force.

although PVC is most and use ethylene type type, it is 唯一 一 types. other type type ethylene 基, polyethylene (PE) alcohol （PVA） and poly chlorine ethylene （PVDC）, or poly acid ethylene ester （PVAc）, has its property can and application. through understanding polyvinyl chloride (PVC) and ethylene and different type type ethylene between difference, can to project use types ethylene 基做出 more 明智 决定.