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必威官网西汉姆联:pvc防撞扶手的材料有什么特点?

来源:http://www.jnndjc.com 日期:2021-09-25 发布人:nsadmin
PVC这种材料在人们日常生活使用范围中越来越广泛,尤其在建筑行业中PVC产品也是逐渐替代了其他老旧材料,比如pvc防撞扶手、pvc护墙板、pvc护角等等。那么pvc都有哪些特性?又是如何分类的呢?
PVC is more and more widely used in people's daily life, especially in the construction industry. PVC products gradually replace other old materials, such as PVC anti-collision handrails, pvc wall panels, PVC corner guards and so on. So what are the characteristics of PVC? How are they classified?
PVC是建筑中应用量大的一种塑料。它是一种多功能的材料,通过改变配方,它可以是硬质的也可以是软质的。PVC在加工或使用过程中受光热的作用容易分解,因此在PVC塑料中必须加入稳定剂,防止和抑 制PVC的分解。在PVC塑料中除稳定剂外,还根据需要加入增塑剂,润滑剂等配合剂。PVC树脂的耐溶剂性较好。某些溶剂能溶解PVC,但溶解力度不大。常用的溶剂为四氢呋喃和环己酮,可配成溶液作为溶剂粘结剂。
PVC is a kind of plastic widely used in construction. It is a multifunctional material. By changing the formula, it can be hard or soft. PVC is easy to decompose under the action of light and heat during processing or use. Therefore, stabilizer must be added to PVC plastics to prevent and inhibit the decomposition of PVC. In addition to stabilizers, plasticizers, lubricants and other compounding agents are also added to PVC plastics as needed. PVC resin has good solvent resistance. Some solvents can dissolve PVC, but the dissolution is not strong. The commonly used solvents are tetrahydrofuran and cyclohexanone, which can be prepared into solution as solvent binder.
PVC树脂按聚合方法不同分为两大类。一类是用悬浮聚合制得的,树脂颗粒较大,其外观为粉状,也称为粉状树脂或悬浮树脂。另一类用乳液法生产,颗:芟,通常称为糊状树脂。
PVC resins can be divided into two categories according to different polymerization methods. One is prepared by suspension polymerization, with large resin particles and powder appearance, also known as powder resin or suspension resin. The other is produced by emulsion method, with fine particles, commonly referred to as paste resins.
PVC塑料制品分为硬PVC和软PVC塑料两大类。前者基本上不含增塑剂,也称为未增塑PVC。它的机械性能相当好,但抗冲性较差,尤其在低温时呈现脆性。在塑料门窗、建筑管道等硬质PVC制品中,通常需加入某些改性树脂来提高它的抗冲击性能。软质PVC制品的软性变化范围较大,随所加增塑剂量而变。
PVC plastic products are divided into hard PVC and soft PVC plastic. The former basically contains no plasticizer, also known as unplasticized PVC. Its mechanical properties are quite good, but its impact resistance is poor, especially at low temperature. In rigid PVC products such as plastic doors and windows and building pipes, some modified resins are usually added to improve its impact resistance. The softness of soft PVC products varies greatly with the plasticizing dose.
必威官网西汉姆联

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