Improving Impact Toughness of Polylactide/Ethylene-<italic style="font-style: italic">co</italic>-vinyl-acetate Blends <italic style="font-style: italic">via</italic> Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica

Ting-Ting Zhang; Mei-Xi Zhou; Zhen-You Guo; You-Bo Zhao; Di Han; Hao Xiu; Hong-Wei Bai; Qin Zhang; Qiang Fu

doi:10.1007/s10118-021-2565-4

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Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica

ARTICLE | Updated：2021-05-25

- Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica
- Chinese Journal of Polymer Science Vol. 39, Issue 8, Pages: 1040-1049(2021)
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  xiuhao@scu.edu.cn (H.X.)
  qiangfu@scu.edu.cn (Q.F.)
- Funds：
- DOI：10.1007/s10118-021-2565-4
  CLC：
- Received：05 January 2021，
  
  Revised：2021-1-31，
  
  Accepted：09 February 2021，
  
  Online First：25 May 2021，
  
  Published：18 June 2021
- Accepted：
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Zhang, T. T.; Zhou, M. X.; Guo, Z. Y.; Zhao, Y. B.; Han, D.; Xiu, H.; Bai, H. W.; Zhang, Q.; Fu, Q. Improving impact toughness of polylactide/ethylene-co-vinyl-acetate blends via adding fumed silica nanoparticles: effects of specific surface area-dependent interfacial selective distribution of silica. Chinese J. Polym. Sci. 2021, 39, 1040–1049

Ting-Ting Zhang, Mei-Xi Zhou, Zhen-You Guo, et al. Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica[J]. Chinese Journal of Polymer Science, 2021, 39(8): 1040-1049. DOI: 10.1007/s10118-021-2565-4.
Zhang, T. T.; Zhou, M. X.; Guo, Z. Y.; Zhao, Y. B.; Han, D.; Xiu, H.; Bai, H. W.; Zhang, Q.; Fu, Q. Improving impact toughness of polylactide/ethylene-co-vinyl-acetate blends via adding fumed silica nanoparticles: effects of specific surface area-dependent interfacial selective distribution of silica. Chinese J. Polym. Sci. 2021, 39, 1040–1049 DOI： 10.1007/s10118-021-2565-4.

Ting-Ting Zhang, Mei-Xi Zhou, Zhen-You Guo, et al. Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica[J]. Chinese Journal of Polymer Science, 2021, 39(8): 1040-1049. DOI: 10.1007/s10118-021-2565-4. DOI：

摘要

Abstract

Adding fumed silica (SiO

) has been considered as an effective method for tailoring the phase morphology and performance of elastomer-toughened plastic binary blends. It has been demonstrated that the selective distribution of SiO

plays a decisive role in the mechanical properties of plastic/elastomer/SiO

nanocomposites

especially for the impact toughness. In this work

we aim to illuminate the role of specific surface area in controlling their selective distribution of fumed SiO

and consequent mechanical properties of plastic/elastomer binary blends. Three types of SiO

with different specific surface areas were incorporated into polylactide/ethylene-

-vinyl-acetate (PLA/EVA) model blends by melt blending directly. It was found that the selective distribution of SiO

is largely determined by their specific surface areas

i.e

. SiO

nanoparticles with low specific surface area has a stronger tendency to be located at the interface between PLA matrix and EVA dispersed phase as compared to those with high specific surface area. The specific surface area-dependent interfacial selective distribution of SiO

is mainly attributed to the extent of increased viscosity of EVA dispersed phase in which SiO

nanoparticles are initially dispersed and resultant migration rate of SiO

nanoparticles. The interfacial localized SiO

nanoparticles induce an obvious enhancement in the impact toughness with strength and modulus well maintained. More importantly

in the case of the same interfacial distribution

toughening efficiency is increased with the specific surface area of SiO

. Therefore

this is an optimum specific surface area of SiO

for the toughening. This work not only provides a novel way to manipulate the selective distribution of SiO

in elastomer-toughened plastic blends toward high-performance

but also gives a deep insight into the role of interfacial localized nanoparticles in the toughening mechanism.

关键词

Keywords

references

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Crystallization Properties, Heat Resistance, and Hydrolytic Resistance of Poly(L-lactide)/Poly(D-lactide) Blend Enhanced by In situ Formation of Stereocomplex Polylactide

Phenylimino-pyridine-phenolate Zinc Complexes for Polylactide Synthesis and Chemical Recycling to Monomers

Design of Tough, yet Strong, Heat-resistant PLA/PBAT Blends with Reconfigurable Shape Memory Behavior by Engineering Exchangeable Covalent Crosslinks

Pyrimidoisoindigo-based Polymers for Ambipolar Charge Transport

Related Author

Tunsuda Suparanon

Jiratchaya Surisaeng

Neeranuch Phusunti

Worasak Phetwarotai

De-Yu Wei

Ni Chen

Zi-Wen Yin

Yan-Bo Li

Related Institution

Bioplastic Research Unit, Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University

Department of Chemistry, Faculty of Science, Prince of Songkla University, Hatyai

Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hatyai

Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong

College of Material Science and Engineering, Jilin Jianzhu University

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Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles: Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica

DOI：10.1007/s10118-021-2565-4

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