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  • 专利标题:   Preparation of graphene oxide-rubber nanocomposite involves dispersing graphene oxide-hydrosol in water, pretreating, adding interface agent, dispersing in rubber latex, adding flocculating agent, performing flocculation, and drying.
  • 专利号:   CN102532629-A, WO2013097605-A1, CN102532629-B, US2014316028-A1, US9376537-B2
  • 发明人:   LIU L, ZHANG F, WEN S, MAO Y
  • 专利权人:   UNIV BEIJING CHEM TECHNOLOGY, LIU L, MAO Y, ZHANG F, WEN S
  • 国际专利分类:   C08J003/00, C08K003/04, C08K009/04, C08K009/06, C08L011/00, C08L023/16, C08L023/22, C08L027/12, C08L007/00, C08L075/04, C08L083/04, C08L009/00, C08L009/02, C08L009/06, C08J003/205, C08J003/28, C08K003/20, C08G018/08, C08J005/00, C08K007/00, C08K009/02
  • 专利详细信息:   CN102532629-A 04 Jul 2012 C08L-009/06 201314 Chinese
  • 申请详细信息:   CN102532629-A CN10454000 30 Dec 2011
  • 优先权号:   CN10454000

▎ 摘　　要

NOVELTY - Graphene oxide-hydrosol are ultrasonically dispersed in deionized water, to obtain dispersed-graphene-hydrosol solution. Obtained dispersed-graphene-hydrosol solution is pretreated, interface agent is added, and ultrasonically dispersed, to obtain pretreated-graphene-hydrosol solution. Obtained pretreated-graphene-hydrosol solution is ultrasonically dispersed in rubber latex, to obtain stable graphene oxide/rubber composite emulsion. Obtained composite emulsion is added into flocculating agent, flocculation is performed, and dried, to obtain graphene oxide/rubber nanocomposite. USE - Preparation of graphene oxide-rubber nanocomposite. ADVANTAGE - The method economically provides graphene oxide-rubber nanocomposite having excellent wear resistance, tear resistance, tensile strength, and gas-barrier property, by a simple process, with reduced energy consumption. DETAILED DESCRIPTION - Graphene oxide-hydrosol are ultrasonically dispersed in deionized water at 0-100 degrees C for 10 minutes-6 hours under power of 10-2000 W, and frequency 10~20000 Hz, to obtain dispersed-graphene-hydrosol solution. Obtained dispersed-graphene-hydrosol solution is pretreated, interface agent is added, and ultrasonically dispersed for 5 minutes-5 hours in speed of 50-10000 rpm, to obtain pretreated-graphene-hydrosol solution. Obtained pretreated-graphene-hydrosol solution is ultrasonically dispersed in rubber latex for 10 minutes-6 hours in speed of 50-10000 rpm, to obtain stable graphene oxide/rubber composite emulsion. Obtained stable graphene oxide/rubber composite emulsion is added into flocculating agent, flocculation is performed, dehydrated and dried, to obtain graphene oxide-rubber nanocomposite. Alternatively, the obtained graphene oxide-rubber composite emulsion is fed into spray drying device, and atomized into small droplet of composite liquid. The resultant composite liquid is dried in a drying medium, moisture is removed, to obtain graphene oxide/rubber nanocomposite, or flocculating agent is introduced into carrier gas of the drying medium in the spray drying device, ion flocculation is performed, and dehydrated, to obtain graphene oxide/rubber nanocomposite.