Shanghai Daoqin Plastics Co., Ltd.

hard polyvinyl chloride (PVC) （PVC） has which excellent disadvantages?

hard polyvinyl chloride (PVC) （PVC） features is machine strong/high degree relatively high, chemical stability property and electrical property can excellent 良, resistant water, oil resistant and anti-aging property relatively good, easy and bonding, price relatively low. disadvantages is use temperature degree low （60℃ below/following ）, 线膨胀系数 large, hot formed defect. its products has tube/pipe, rod, sheet/plate, strip/profile and pipe fittings, main/primary used for corrosion resistant structure or equipment 衬里, has color alloy, 不锈钢 and and other material. PVC, full is Polyvinylchlorid, main/primary formed is polyvinyl chloride (PVC), another add other formed separation reinforcement its heat resistant property, tough property, property and other. this type of surface film most upper is 漆, in main/primary formed separation is polyvinyl chloride (PVC), most lower is coating bonding agent.
it full use amount in various combined formed material in high 居第二.
PVC can separation is soft PVC and hard PVC. its in hard PVC占 market 2/3, soft PVC占1/3. soft PVC generally suitable for sheet/plate, sheet/plate and leather table/sheet 层, due to soft PVC in soft/flexible agent （ this is soft PVC and hard PVC difference ）, easy 变脆, easy 保存, therefore its use scope/range to 局限. hard PVC不含 soft/flexible agent, therefore flexibility property good, easy molding, easy 脆, 无毒无污染, time long, therefore tool has very large development application value. lower 文均称 is PVC.
PVC essence is types true thermoforming film, used for type sheet/plate table/sheet packaging, therefore also by is decoration film, used for building materials, packaging, and other more industry. its in building materials industry specific gravity most large, is 60%, its is packaging industry, also has other dry small scope/range application industry.

polyvinyl chloride (PVC) process

PVC之 therefore can by 广泛 应 used for building materials industry, has very important causes:
一 is PVC独特 property can （ anti 雨, resistant 火, anti-static, easy molding ）, is PVC low high output/production volume features. that 么, PVC is what can tool has upper in excellent 呢? let from its production process upper 找答案吧.
PVC production process complex, production generally pressure machine, printing machine, coating machine and machine formed, main/primary is through pressure machine 直动搅拌, 滚轴旋转以 and high temperature pressure production thick degree is 0.33mm至0.7mm film, production meanwhile and through printing machine in film lower upper color, through coating machine in film 背面附 upper 一层背 coating. can need small this coating, it is PVC film excellent property can important ensure. coating 由特殊材 material formed, is types high can hydrophilic and agent, positive is due to this coating, PVC film can and in sheet/plate or its it sheet/plate melt combined in 一起. year 甚至十五 year 不开胶. 而普通贴面 film most large issues is method solution film issues. due to sleeve/set production process is in high temperature lower （滚 pressure machine inner temperature degree to 220 degree ）进行, this make PVC film tool has high resistant light property and resistant property, ensure PVC film high quality. 当然, this for production machine requirements very high, usually sleeve/set production production equipment 造价约 is 3千9百万马克, combined 人民币约1.6 100 million yuan. 但另一方面, PVC film production process versus simple, machine output/production volume very large, therefore comprehensive 看, PVC实际 is types low 投入, high output/production volume product.

polyvinyl chloride (PVC) ultra- 常 property can

PVC film and viscous film also has what different 呢? viscous film is in normal temperature lower use water in sheet/plate surface upper, therefore 经 一两 year rear, film easy 脱落. 而PVC film is application specialized true film machine in 110 degree temperature lower pressure in sheet/plate surface, therefore easy 脱落.
PVC经 特殊 提炼, formed is full 无毒无味, for 人体皮肤 or is system has 任何刺激, for/regarding that for material and paint 敏 人 说, is non good. very environmental protection. decrease/reduce use amount, bad ring 境.