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Related Experiment Video

Updated: Jun 4, 2026

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming
07:56

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming

Published on: October 10, 2025

Tough graphene-polymer microcellular foams for electromagnetic interference shielding.

Hao-Bin Zhang1, Qing Yan, Wen-Ge Zheng

  • 1Beijing Key Laboratory on Preparation and Processing of Novel Polymeric Materials, Department of Polymer Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.

ACS Applied Materials & Interfaces
|March 4, 2011
PubMed
Summary

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New graphene-polymethylmethacrylate (PMMA) nanocomposite foams offer high electrical conductivity and enhanced ductility. These lightweight, tough materials utilize microcellular structures for superior electromagnetic interference shielding via microwave absorption.

Area of Science:

  • Materials Science
  • Polymer Science
  • Nanotechnology

Background:

  • Polymethylmethacrylate (PMMA) is an insulating polymer.
  • Graphene is a highly conductive nanomaterial.
  • Electromagnetic interference (EMI) shielding materials are crucial for electronic devices.

Purpose of the Study:

  • To develop functional PMMA/graphene nanocomposite microcellular foams.
  • To enhance electrical conductivity and EMI shielding properties of PMMA.
  • To improve the mechanical toughness of PMMA foams.

Main Methods:

  • Blending PMMA with graphene sheets.
  • Foaming the nanocomposite using subcritical CO(2).
  • Characterizing the electrical, mechanical, and EMI shielding properties.

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Last Updated: Jun 4, 2026

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming
07:56

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming

Published on: October 10, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

Fabrication of Monolayer Graphene-Coated Grids for Cryoelectron Microscopy
06:53

Fabrication of Monolayer Graphene-Coated Grids for Cryoelectron Microscopy

Published on: September 8, 2023

Main Results:

  • Graphene addition imparted high electrical conductivity to PMMA foams.
  • The foams exhibited improved electromagnetic interference (EMI) shielding efficiency, primarily through microwave absorption.
  • Microcellular structures significantly enhanced ductility and tensile toughness compared to bulk PMMA.

Conclusions:

  • A novel method for fabricating tough, lightweight graphene-PMMA nanocomposite microcellular foams was established.
  • These foams possess superior electrical and EMI shielding properties.
  • The combination of graphene functionality and microcellular toughening offers significant advantages.