HDPE双平壁钢塑复合缠绕管双扣聚氯乙烯增强管HDPE通用增强网状结构壁管生产厂家、钢带增强波纹管实力供应商——山东老兵管道。

双扣聚氯乙烯增强管

全国服务热线 0531-88985250
15589946191

新闻资讯

您所在的位置:首页 - 新闻资讯 - 新闻资讯 -

双壁波纹管对原材料性能的要求!

作者: admin    来源:http://www.laobingguandao.com  时间:2019-09-10    人气:
  双壁波纹管原料的组成:PE双壁波纹管的原材料一般由聚乙烯、增强性功能母料和颜料等组成。如果原材料潮湿,为了提高生产效率,可添加适当的消泡剂。
  Composition of raw materials for double-wall bellows: PE double-wall bellows are generally made up of polyethylene, reinforced functional masterbatch and pigments. If raw materials are wet, appropriate defoamer can be added to improve production efficiency.
  双壁波纹管对原材料性能的要求:如何生产出一根低成本,高品质的波纹管,很大程度上取决于对原材料的选择和配方的搭配。对聚乙烯(PE)性能的一般要求有熔体流动速率(MFR)、氧化诱导时间(OIT)和密度等。熔体流动速率的大小反映了分子量的大小,一般来说,熔体流动速率大一点的材料有利于加工成型,并可提高生产效率。但也不能过大,过大对环刚度的影响较大,选用0.8-1.5g/10min(190℃,5kg)之间为宜。氧化诱导时间决定了氧化破坏的时间,对于要求使用50周年的波纹管来说,控制好原材料的氧化诱导时间是能否保证50年使用寿命的关键。GB/T19472.1-2004中明确规定,波纹管的原材料的氧化诱导时间应≥20min(200℃)。对中、高密度聚乙烯来说,可通过改变密度来调整其性能。因为我们知道密度相对低的聚乙烯可延长其脆性破坏的时间。
HDPE通用增强网状结构壁管
  Requirements for raw material performance of double-wall bellows: How to produce a low-cost, high-quality bellows depends largely on the selection of raw materials and the matching of formulations. The General requirements for the properties of polyethylene (PE) include melt flow rate (MFR), oxidation induction time (OIT) and density. The melt flow rate reflects the molecular weight. Generally speaking, materials with higher melt flow rate are beneficial to processing and forming, and can improve production efficiency. However, it should not be too large. The influence of too large on ring stiffness is greater. It is better to choose between 0.8-1.5g/10min (190 C, 5kg). The time of oxidation damage is determined by the time of oxidation induction. For bellows requiring 50 years of service, controlling the time of oxidation induction of raw materials is the key to ensure 50 years of service life. GB/T19472.1-2004 clearly stipulates that the oxidation induction time of raw materials of bellows should be more than 20 minutes (200 C). For medium and high density polyethylene, its properties can be adjusted by changing its density. Because we know that polyethylene with relatively low density can prolong its brittle failure time.
  双壁波纹管功能母料的选择也很关键,目前尚无有关排水管道专用功能母料的标准,各厂家的产品的性能不尽一致。选用功能母料时应当充分考虑其分散性、偶联性和对聚乙烯改性的程度。
  The selection of functional masterbatch for double-wall corrugated pipe is also critical. There is no national standard for functional masterbatch for drainage pipe at present, and the performance of products from different manufacturers is not the same. When selecting functional masterbatch, the dispersion, coupling and modification degree of polyethylene should be fully considered.

Copyright © 2016.山东老兵管道设备有限公司.All rights reserved 电话:15589946191 0531-88985250 网址:http://www.laobingguandao.com/ 地址:山东省济南市临港经济开发区   
山东老兵管道专注:pvc缠绕管,双扣聚氯乙烯缠绕管,钢带增强波纹管,双平壁钢塑复合缠绕管,塑钢缠绕管。 鲁ICP备16003217号-2
手机站二维码 微信扫一扫
厂价都知道
咨询热线hotline 0531-88985250