Preparation of Nanosilica-immobilized Antioxidant and the Antioxidation Effects in Polypropylene

Zai-man Liu; Yun Liu; Nai-pu He; Bai-yu Li

doi:10.1007/s10118-014-1553-3

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Preparation of Nanosilica-immobilized Antioxidant and the Antioxidation Effects in Polypropylene

Updated：2021-06-21

- Preparation of Nanosilica-immobilized Antioxidant and the Antioxidation Effects in Polypropylene
- Chinese Journal of Polymer Science Vol. 32, Issue 12, Pages: 1602-1609(2014)
- Affiliations：
  
  School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
- Author bio：
  
  *Zai-man Liu (刘再满), E-mail: liuzm@mail.lzjtu.cn
- Funds：
- DOI：10.1007/s10118-014-1553-3
  CLC：
- Received：05 March 2014，
  
  Revised：2014-04-15，
  
  Accepted：21 April 2014，
  
  Published：2014-12
- Accepted：
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Zai-man Liu, Yun Liu, Nai-pu He, et al. Preparation of Nanosilica-immobilized Antioxidant and the Antioxidation Effects in Polypropylene[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1602-1609.
DOI：

Zai-man Liu, Yun Liu, Nai-pu He, et al. Preparation of Nanosilica-immobilized Antioxidant and the Antioxidation Effects in Polypropylene[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1602-1609. DOI： 10.1007/s10118-014-1553-3.

摘要

Abstract

To improve the dispersion of silica in polypropylene (PP) matrix and to avoid physical loss of the antioxidants

nanosilica with dendric polyamidoamines on the surface (SG-PAMAM) was synthesized by using divergent method. Then nanosilica-immobilized antioxidant (SG-PAMAM-AO) was prepared by grafting 2

6-di-tert-butyl-4-aminophenol which was derived from 2

6-di-tert-butyl-4-phenol (AO). The SG-PAMAM-AO was added into PP by melt mixing to study the aging property. The oxidation induction time of PP/SG-PAMAM-AO and PP/AO compounds was measured. It was found that the antioxidant property of the SG-PAMAM-AO was superior to that of AO. According to the changes of carbonyl absorption before and after photo-thermal aging

the photo-thermal oxidative stability of PP/SG-PAMAM-AO was much higher than that of PP

PP/SG-PAMAM and PP/AO.

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