Shanghai Daoqin Plastics Co., Ltd.

 PVC—— China 第一, world large general purpose type combined formed resin material, due to tool has excellent flame resistant property, wear resistance, resistant chemical property, comprehensive mechanical properties, products transparent property, electrical insulation property and comparison easy processing and other features, currently PVC already formed is application areas most is plastics product types 之一. 本文, main/primary from polyvinyl chloride (PVC) brief introduction, history, classification, combined formed process, modified, application and products Common issues 七 方面 introduction PVC.

一, polyvinyl chloride (PVC) brief introduction

我叫 polyvinyl chloride (PVC), upper to 我面子, 叫我“PVC”. 别看我跟PE long 挺像（ chlorine 原子取代 hydrogen ）, 但我妈不 is 他妈, 他爸也不 is 我爸. 肤 color relatively 白（ white powder 末）, property comparison and, to cationic light （80-85℃）, easy 灿烂（ soft 化）; to cationic （130℃）, 就会乐 屁颠屁颠（变 is viscous elastic 态）; to cationic （160-180℃）, 直接梨花 belt/tape 雨哭 感天动 （ viscous 流态）;

due to, from small belt/tape has 毒基因（ chlorine 原子）, 身子骨就 comparison low （ resistant strong/high degree 60MPa left right, impact strong/high degree 5~10kJ/m2）, also very 怕“ light and hot ”（ light and hot lower, chlorine by 取代）. therefore, from small, 就会做一 control 病情 手术. （ modified ）

table/sheet 1: PVC basic property

二, PVC classification

听我妈说, in also is 受精卵 时候, can through 改变DNA, obtain 不一样 体 type. ratio 如, 不做任何改变 （由 mono 体引发）, rear can is “ general purpose type PVC”; need is “拉 long DNA separation 子链”（ add growth agent ）, rear formed is “ high polymerization degree PVC”; also has types is through “引入 other types DNA”（ add has di and more crosslinked agent polymerization ）, 改变自身, from long formed “ crosslinked PVC”. 如此, types type, has 我们.

1. according to application scope different , PVC can separation is: general purpose type PVC resin, high polymerization degree PVC resin, crosslinked PVC resin.

general purpose type PVC: is chlorine ethylene mono in agent function lower polymerization formed;

high polymerization degree PVC: is in chlorine ethylene mono polymerization system in add growth agent polymerization formed resin;

crosslinked PVC: is in chlorine ethylene mono polymerization system in add has di and more crosslinked agent polymerization formed resin.

2. according to chlorine ethylene mono obtain methods separation : electrical method, ethylene method ;

3.按 increase agent content separation :

table/sheet 2: different content increase agent PVC

三, from 出生就知 its 家庭（ combined formed process and main/primary production 商）

说 to 我们 出生, 一波三折, difficult heavy heavy. 贫穷 家庭（缺 less and gas ） generally 以: electrical method is 主, this type of methods, need electrical 石, and salt, for ring 境污染也 very large; 富裕 家庭（煤天然 gas 丰富）, 就以: 乙炔 method is 主.

1.PVC made process

PVC production main/primary has types made process, is electrical method , main/primary production raw materials is electrical 石, and salt; is 乙炔 method , main/primary raw materials is 石油. market upper PVC production main/primary 以乙炔 method is 主, inner 受富煤, 贫油, less gas 资源禀赋限 made, main/primary electrical method is 主.

2.PVC types polymerization methods

PVC resin usually using/adopting 悬浮 polymerization method, polymerization method, emulsion polymerization method and solvent liquid polymerization method production, polymerization method in 80% upper lower, polymerization method is 10%, emulsion polymerization method in 10% above.  

3.国 inner PVC main/primary production and production capacity :→2015 year China PVC market report: general purpose material demand decline, high property can specialized material 供不应求!

四, PVC modified methods

虽说, 我出生不 easy, also from small belt/tape “ chlorine 原子”, 受不 “ light and hot ”. this 事实, 众 周知, is outer 界生存 conditions, improvement machine can, 我欣然接受 手术治疗, ratio 如: copolymer, grafting, chlorine 化, foaming and other methods, from reinforcement for “ light and hot ”（注: light and hot conditions lower, active property 部位引发 自 catalytic chlorine hydrogen reaction, formed more 烯链, 并进而发生断链, crosslinked and other reaction color, degradation, make plastics products quality 变差, property can decline, effect/influence its processing and use property can ） resistant force.

1. copolymer modified : let chlorine ethylene mono and other mono 体进行 copolymer reaction.

2. grafting reaction : in PVC侧链 upper another mono 体基团, or types polymer, grafting reaction

3. chlorine 化: will PVC use water versus method (or gas versus method), chlorine 化, make chlorine content 由原 57% improve/increase to 65% left right, this modified in improve/increase PVC heat resistant property, use temperature degree ratio PVC high 出35～40℃, is chlorine polyvinyl chloride (PVC) (CPVC).

4. foaming modified: main/primary separation is hard foaming and soft foaming, foaming PVC, not only can reduce density, cost, but also also has many excellent material and force property can .

五, 携 belt/tape 病毒依然 can world （ application and main/primary Model/Grade ）

经 renovation （ modified ）, 我就跟打 鸡血一样, 简直跟 heavy 生一样. 本 就随意拿“ acid alkali material 喝 人（ resistant acid alkali ）, also 不怕火（ flame resistant ）”. 此时, use 之不竭 精 force, 天马行空 思维, let made 不住 创造 一 parts also parts product, ratio 如: “ electrical outer 皮, light outer 皮, 鞋, bag, bag, material, and 广告牌, construction use product, 家俱, 挂饰, 滚轮, tube/pipe, toys （如 has Italy “Rody”跳跳马）, 门帘, 卷门, medical use product, sleeve/set, certain material 保鲜纸, certain and other . ” this year 间, although 时刻携 belt/tape 一 炸 elastic, 但始终无 method 停止我想 let world more good, let this world more 美 念头.

specific PVC材 material application introduction

1．PVC hard and sheet/plate 材

PVC石塑（仿 large 理石） market and technology

2． polyvinyl chloride (PVC) type 材

full 球首款PVC-PBT门窗 type 材7 month 面市（ BASF |basf）

3． polyvinyl chloride (PVC) pipe/tube

one article 读懂PVC pipe/tube production process

4． polyvinyl chloride (PVC) film

[medical grade ] soft 质PVC and medical grade TPE packaging bag versus ratio tool has advantages

5．PVC generally soft product

当PVC线材 疯子闯进 TPE market?

7 types commonly used medical grade plastics, to 吧, in 首位竟然 is? （PVC soft tube/pipe ）

5.国 inner main/primary PVC Model/Grade and applications

table/sheet 3: inner main/primary PVC Model/Grade and applications

六, PVC and 急救丸（PVC products defect and solution ）

although, 我时不时 also 会发病（ products 发黄, 发脆）. 但喝 老 in 医开 几服药之 rear, already basic upper to solution . therefore, has 病就 看老 in 医（ more 学习）, need 放弃治疗（坚持）, good 起 （ plastics industry good 起 ）.