Effect of Layered Double Hydroxides on the Mechanical, Thermal, and Fire Properties of Poly(methyl methacrylate) Nanocomposites

被引：15

作者：

Nogueira, Telma ^{[1
]}

Botan, Rodrigo ^{[1
]}

Macedo Neto, Jose Costa ^{[1
]}

Wypych, Fernando ^{[2
]}

Lona, Liliane ^{[1
]}

机构：

[1] Univ Estadual Campinas, Sch Chem Engn, BR-13083852 Campinas, SP, Brazil

[2] Univ Fed Parana, Dept Chem, BR-81531980 Curitiba, Parana, Brazil

来源：

ADVANCES IN POLYMER TECHNOLOGY | 2013年 / 32卷

关键词：

Dynamic mechanical properties; Layered double hydroxides; Nanocomposites; Poly(methyl methacrylate); Reinforcement; POLYMERIZATION RATE; PMMA; INTERCALATION; CLAY;

D O I：

10.1002/adv.21309

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effects of preselected six different layered double hydroxides (LDHs) (Zn/Al 4:1 DDS, Mg/Al 2:1 DDS, Zn/Al 2:1 stearate, Mg/Fe 4:1 stearate, Zn/Al 2:1 laurate, and Mg/Fe 4:1 laurate) on the mechanical, thermal, and fire properties of poly(methyl methacrylate) (PMMA) nanocomposites, synthesized by intercalative in situ bulk polymerization, were evaluated. PMMA nanocomposites containing three different LDH concentrations (1, 3, and 5 wt%) were produced, and it was observed that all the nanocomposites with lower LDH concentration (1 wt%) showed a higher elastic modulus than PMMA. However, as the LDH concentration increased, the elastic modulus decreased for all the nanocomposites. It was shown that PMMA/(Zn/Al 2:1 stearate) containing 5 wt% of LDH in its composition exhibited a decomposition temperature about 97 degrees C higher than pure PMMA. According to this study, it was found that it is possible to enhance some mechanical and thermal properties of PMMA using very low LDH concentrations (mass fraction of LDH equal to 1%). LDHs are inexpensive materials based on abundant metals with a simple synthesis method that has a low environmental impact. (c) 2012 Wiley Periodicals, Inc. Adv Polym Techn 32: E660E674, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.21309

引用

页码：E660 / E674

页数：15

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