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  • 专利标题:   Functionalized graphene sheets useful in polymer composite and resin have specific carbon to oxygen molar ratio.
  • 专利号:   WO2009134492-A2, WO2009134492-A3, EP2240404-A2, JP2011510906-W, US2011114897-A1, CN102026916-A, CN102026916-B, JP5623293-B2, US9546092-B2, US2017073504-A1, EP2240404-A4, US10017632-B2, US2018291182-A1
  • 发明人:   AKSAY I A, KORKUT S, MILIUS D L, PRUDHOMME R K, PRUD HOMME R K, AKSAY I, MILIUS D, PRUDHOMME R, PRUD H R K, PRUD APOS HOMME R K
  • 专利权人:   AKSAY I A, MILIUS D L, KORKUT S, PRUDHOMME R K, UNIV PRINCETON, UNIV PRINCETON, UNIV PRINCETON, UNIV PRINCETON, UNIV PRINCETON
  • 国际专利分类:   B32B027/04, C01B031/00, C01B031/04, C08K003/20, C08L101/00, B82Y030/00, B82Y040/00, H01B001/24, H01B001/04, C08K003/04, C08K009/00, C08L027/18, C08L071/12, C08L077/06, C09D007/12, C01B032/192, C01B032/194, C09D007/62
  • 专利详细信息:   WO2009134492-A2 05 Nov 2009 B32B-027/04 200977 Pages: 18 English
  • 申请详细信息:   WO2009134492-A2 WOUS032947 03 Feb 2009
  • 优先权号:   US026264P, US866306, US362914, US008170

▎ 摘　　要

NOVELTY - Functionalized graphene sheets (S1) have a carbon to oxygen molar ratio of at least 23:1. USE - As an functionalized graphene sheet useful in polymer composite or resin (claimed) such as semiconductors; in films, molded articles; and in conjunction with a binder for forming coatings (including inks and paints) or films. ADVANTAGE - The functionalized graphene sheet forms a composite having an electrical conductivity of at least 106 (preferably at least 100, especially at least 104) S/m. The functionalized graphene sheet has bulk density of 40-0.1 kg/m3; and has improved electrical conductivity both in pure form, and/or in blends or composites with other materials, than similar materials having lower carbon to oxygen ration, including ratios of 20:1. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a polymer composite or resin comprising the functionalized graphene sheets (S1) and at least one polymer; (2) making functionalized graphene sheets (S1) involving heating graphite oxide and/or functionalized graphene sheets having a carbon to oxygen ratio of less than 23:1 at a temperature of at least 750 degrees C for a time to generate functionalized graphene sheets (S1).