爱乐透彩票官网

欢迎光临安徽鑫科生物环保有限公司官方网站!

生物降解颗粒聚乙烯醇薄膜的介绍!

生物降解颗粒聚乙烯醇薄膜的介绍!

来源网址: 2019-10-11 15:36:18    

  生物降解颗粒聚乙烯醇(PVA)是一种水溶性聚合物,特性是致密性好、结晶度高,粘接力强、制成的薄膜柔韧平滑、耐油、耐溶剂、耐磨耗、气体阻透性好,以及经特殊处置具有的耐水性,用处普遍。

  Biodegradable particulate polyvinyl alcohol (PVA) is a water-soluble polymer with good compactness, high crystallinity, strong adhesion, flexible and smooth film, oil resistance, solvent resistance, wear resistance, good gas permeability, and water resistance after special treatment.
  聚乙烯醇对人体无毒、无味、无害,与自然环境具有良好的亲和性,不累积,无污染。
  Polyvinyl alcohol is non-toxic, tasteless and harmless to human body. It has good affinity with the natural environment. It does not accumulate and is pollution-free.
  聚乙烯醇薄膜是以聚乙烯醇为主体,参加改性剂等助剂,经过特殊工艺加工、能够被土壤中的微生物完整降解的绿色环保功用性资料。它可在短时间内降解为二氧化碳和水,并有改进土地的作用。
生物降解颗粒
  Polyvinyl alcohol (PVA) film is a kind of green environmental protection functional data, which is mainly composed of polyvinyl alcohol and participates in modifiers and other additives. It can be degraded completely by microorganisms in soil after special processing. It can degrade into carbon dioxide and water in a short period of time, and has the function of improving land.
  聚乙烯醇薄膜最大的优点是水溶性,最大的缺陷是耐水性差。之所以耐水性差,是由于其分子中带有亲水性的羟基(-OH)。假如能将羟基恰当封锁,接上耐水性基团,就可进步PVA薄膜的耐水性。PVA含有羟基,可发作多元醇的一切典型反响,选用恰当的缩聚物,在添加量不大的状况下,就能与PVA中的羟基适度交朕,使PVA构成一种强韧的三维构造,稳定了PVA在湿态条件下的气密性,进步了耐水才能。
  The biggest advantage of polyvinyl alcohol film is its water solubility, and the biggest defect is its poor water resistance. The reason for the poor water resistance is the hydrophilic hydroxyl (- OH) in the molecule. The water resistance of PVA films can be improved if hydroxyl groups can be properly blocked and waterproof groups can be attached. PVA contains hydroxyl, which can trigger all the typical reactions of polyols. When appropriate polycondensates are selected, the hydroxyl in PVA can be moderately intermingled with the hydroxyl in PVA at a small amount of addition, which makes PVA form a strong three-dimensional structure, stabilizes the air tightness of PVA under wet conditions, and improves its water resistance.
  实践应用中,能够经过调整原料、配方和工艺来控制聚乙烯醇薄膜的水溶性和吸潮性,以此来满足不同运用目的的需求。
  In practical application, the water solubility and moisture absorption of PVA film can be controlled by adjusting the raw material, formula and process, so as to meet the needs of different application purposes.
  以上是生物降解颗粒厂家为大家介绍的相关内容,本文来源:
  Above is the relevant content introduced by biodegradable granules manufacturers. This article is from http://www.swjkl.com.

友情链接:大通彩票  宏发彩票网  永盛彩票  大运彩票网  大运彩票官网  大通彩票  大通彩票  

免责声明: 本站资料及图片来源互联网文章,本网不承担任何由内容信息所引起的争议和法律责任。所有作品版权归原创作者所有,与本站立场无关,如用户分享不慎侵犯了您的权益,请联系我们告知,我们将做删除处理!