Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (5): 524-530.DOI: 10.11944/j.issn.1000-0518.2020.05.190346

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Preparation and Properties of Siliceous Earth/ Phenolphthalein-Based Poly(arylene ether sulfone) Composites

GAO Limina,LI Lub,ZHOU Guangyuanc,WANG Honghuac,ZHU Zhonglia*()   

  1. aSchool of Chemistry & Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China;
    bDivision of Energy Materials,Dalian Institute of Chemistry Physics,Dalian,Liaoning 116000,China
    cKey Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2019-12-19 Accepted:2020-02-21 Published:2020-05-01 Online:2020-04-29
  • Contact: ZHU Zhongli
  • Supported by:
    Supported by the Key R&D Program of Guangdong Province(No.2018B090906001)

Abstract:

Functional modification of siliceous earth with γ-aminopropyltriethoxysilane, and functionalized siliceous earth was blended into phenolphthalein-based poly(arylene ether sulfone) (PES-C) to prepare composite materials. And its thermal properties, mechanical properties and barrier properties were characterized and analyzed. The results showed that the surface modification of γ-aminopropyltriethoxy increased the layers' pacing of siliceous earth and made the siliceous earth in the state of semi-stripping, and the doping of the surface modified siliceous earth into PES-C through solution blending was more conducive to the insertion of PES-C molecular chains. The 5% mass loss temperature (T-5%), the T-10% and the Tmax of the composites was increased by 10.2 ℃, 10 ℃ and 3.9 ℃, respectively. In addition, the tensile strength of the composite materials increased by 8.4 MPa, the breaking elongation increased by 2.4%, and the modulus increased by 560.7 MPa. The $P_{O_{2}}$ of composites was reduced by 77.4%.

Key words: siliceous earth, phenolphthalein-based poly(arylene ether sulfone), composites, thermal properties, mechanical properties, gas barrier properties