Preparation and characterization of attapulgite microcapsules coated with acrylic polymer

Lining Song; Zhenxu Li; Lina Yang; Ning Wang; Jie Zhao; Zheng Gu

doi:10.14314/polimery.2021.2.4

Published : 2021-02-17

Vol. 66 No. 2 (2021)

Preparation and characterization of attapulgite microcapsules coated with acrylic polymer

Lining Song https://orcid.org/0000-0002-5671-4745 Zhenxu Li https://orcid.org/0000-0003-3998-9090 Lina Yang https://orcid.org/0000-0002-5518-050X Ning Wang https://orcid.org/0000-0002-2509-3886 Jie Zhao https://orcid.org/0000-0002-6754-3785 Zheng Gu https://orcid.org/0000-0001-9521-2863

DOI: https://doi.org/10.14314/polimery.2021.2.4

Abstract

The attapulgite core-shell microcapsule type flame retardant was prepared by in situ polymerization. Attapulgite (ATP) was used as a core material with poly(methyl methacrylate) (PMMA) and poly(methyl methacrylate-co-acrylic acid) [P(MMA-co-AA)] as shell materials. The attapulgite was modified by the silane coupling agent. The effects of different shell materials and modification methods on the structure and properties of attapulgite core-shell microcapsules were studied by scanning electron microscopy, particle size distribution, infrared analysis and thermogravimetric analysis. The results showed that the coating effect was best when the amount of silane coupling agent was 1% of the attapulgite mass. The particle size of the microcapsule prepared with PMMA as shell material was uniform and the coating efficiency was better. After the copolymerization of acrylic acid (AA) in MMA shell materials, the cladding efficiency was improved. At the same time, the thermal decomposition temperature of the microcapsule shell material was greatly reduced, which is beneficial to the performance of attapulgite flame retardant.

Keywords

microcapsule ; attapulgite ; methyl methacrylate ; acrylic acid ; silane coupling agent mikrokapsułka ; attapulgit ; metakrylan metylu ; kwas akrylowy ; silanowy środek sprzęgający

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Song, L., Li, Z., Yang, L., Wang, N., Zhao, J., & Gu, Z. (2021). Preparation and characterization of attapulgite microcapsules coated with acrylic polymer. Polimery, 66(2), 112-118. https://doi.org/10.14314/polimery.2021.2.4

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Lining Song
https://orcid.org/0000-0002-5671-4745

Affiliation
Qingdao University, School of Chemistry and Chemical Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071.

Zhenxu Li
https://orcid.org/0000-0003-3998-9090

Affiliation
Qingdao University, School of Chemistry and Chemical Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071.

Lina Yang
https://orcid.org/0000-0002-5518-050X

Affiliation
Qingdao University, School of Chemistry and Chemical Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071

Ning Wang
https://orcid.org/0000-0002-2509-3886

Affiliation
Qingdao University, School of Chemistry and Chemical Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071

Jie Zhao
https://orcid.org/0000-0002-6754-3785

Affiliation
Qingdao University, School of Chemistry and Chemical Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071

Zheng Gu guzheng596@163.com
https://orcid.org/0000-0001-9521-2863

Affiliation
Qingdao University, School of Materials Science and Engineering, 308 Ningxia Road, Qingdao, Shandong P.R.C. 266071