中国塑料 ›› 2023, Vol. 37 ›› Issue (2): 22-30.DOI: 10.19491/j.issn.1001-9278.2023.02.004

• 材料与性能 • 上一篇    下一篇

PET开孔泡沫的制备及其吸油性能研究

吴锋, 韩硕, 陈士宏, 王向东()   

  1. 北京工商大学化学与材料工程学院,北京 100048
  • 收稿日期:2022-11-10 出版日期:2023-02-26 发布日期:2023-02-22
  • 通讯作者: 王向东(1972—),男,教授,从事聚合物发泡材料的研究开发,wangxdbtbu@126.com
    E-mail:wangxdbtbu@126.com

Preparation and oil absorption performance of PET open⁃cell foams

WU Feng, HAN Shuo, CHEN Shihong, WANG Xiangdong()   

  1. School of Chemical and Material Engineering,Beijing Technology and Business University,Beijing 100048,China
  • Received:2022-11-10 Online:2023-02-26 Published:2023-02-22
  • Contact: WANG Xiangdong E-mail:wangxdbtbu@126.com

摘要:

研究了均苯四甲酸二酐(PMDA)添加量、发泡温度和压力降对聚对苯二甲酸乙二醇酯(PET)开孔泡沫形成的影响。研究发现,当发泡温度为216 ℃,PMDA添加量为0.6 份,压力降较高时,可以制备发泡倍率35倍、开孔率96.3 %的PET开孔泡沫。将聚四氟乙烯(PTFE)和有机改性蒙脱土(MMT)引入PET开孔泡沫的制备,研究发现PTFE和MMT具有异相成核作用,减小了泡孔尺寸,拓宽了PET开孔发泡窗口温度,在(222~228 ℃)较宽的发泡温度窗口范围内成功制备了泡孔尺寸更小(10~100 μm)、发泡倍率高达40倍的PET开孔泡沫。开孔泡沫可吸收汽油、柴油、煤油、轻质原油和重质原油等各种石油产品,本文对高开孔率开孔泡沫的吸油性能进行了研究,其吸收能力约为8~30 g/g。

关键词: 聚对苯二甲酸乙二醇酯, 开孔泡沫, 吸油

Abstract:

The effects of pyromellitic dianhydride (PMDA) dosage, foaming temperature, and the pressure⁃dropping rate on the formation of open⁃cell foams were investigated. The results indicated that the PET open⁃cell foams with a foa⁃ming rate of 35 times and an opening rate of 96.3 % could be prepared at a foaming temperature of 216 ℃ and a PMDA dosage of 0.6 phr together with a high pressure⁃dropping rate. Polytetrafluoroethylene (PTFE) and organic modified montmorillonite (MMT) were introduced into the PET open⁃cell foams during the preparation process. PTFE and MMT presented a heterogeneous nucleation effect to reduce the size of the cell and widen the foaming window temperature of PET open⁃cell foams. The PET open⁃cell foam with a smaller cell size (10~100 μm) and an almost foaming rate of 40 times was successfully fabricated within a wider foaming temperature window of 222~228 ℃. The open⁃cell foam could absorb various petroleum products such as gasoline, diesel, kerosene, light crude oil and heavy crude oil. The oil absorption behavior of the open cell foams with a high open⁃cell rate was investigated. The open cell foams exhibited a good absorption capacity along with a high open⁃cell rate of around 8~30 g/g.

Key words: polybutylene terephthalate, open?cell foam, oil absorption

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