• 专利标题:   Preparing high-content carbon nanotube-polymer useful for graphene oxide composite material, comprises e.g. adding expanded graphite powder, stirring, heating, drying, cooling, ultrasonic and mechanical stirring, molding and vacuum drying.
  • 专利号:   CN108530790-A
  • 发明人:   ZHOU K, ZHOU C, WANG L
  • 专利权人:   UNIV JINAN
  • 国际专利分类:   C08L025/14, C08K003/04, C08J003/205
  • 专利详细信息:   CN108530790-A 14 Sep 2018 C08L-025/14 201873 Pages: 10 Chinese
  • 申请详细信息:   CN108530790-A CN10485553 21 May 2018
  • 优先权号:   CN10485553

▎ 摘  要

NOVELTY - Preparing high-content carbon nanotube-polymer comprises (i) adding expanded graphite powder, potassium permanganate, adjusting rotation speed, adding concentrated sulfuric acid many times in the reactor, concentrated nitric acid liquid solution and continuously stirring, heating after reacting for a certain time, adding de-ionized water into the reactor, dropping hydrogen peroxide solution until the solution became bright yellow, washing and drying to obtain oxidized grapheme, (ii) adding to a reactor with a stirring device, adding a small amount of p-toluenesulfonic acid and N, Ndimethylformamide after finishing reaction, cooling into room temperature, washing to neutral and drying, (iii) preparing styrene-acrylic emulsion, and (iv) taking de-ionized water, ultrasonically dispersion, taking (iii), adding styrene-acrylic emulsion, ultrasonic and mechanical stirring, molding and vacuum drying. USE - The high-content carbon nanotube-polymer is useful for graphene oxide composite material (claimed). ADVANTAGE - The method improves the dispersibility of carbon nanotubes, so as to improve the adding amount in a polymer matrix dynamic mechanical analyzer test damping performance and high performance temperature range are mobile and widen towards the high temperature. DETAILED DESCRIPTION - Preparing high-content carbon nanotube-polymer comprises (i) adding expanded graphite powder, potassium permanganate, adjusting rotation speed, adding concentrated sulfuric acid many times in the reactor, concentrated nitric acid liquid solution and continuously stirring to obtain mixed solution, heating after reacting for a certain time, adding de-ionized water into the reactor, dropping hydrogen peroxide solution until the solution became bright yellow, washing and drying to obtain oxidized grapheme, (ii) adding to a reactor with a stirring device, adding a small amount of p-toluenesulfonic acid and N, Ndimethylformamide after finishing reaction, cooling into room temperature, washing to neutral and drying to obtain oxidized graphene-carbon nanotube hybrid body (iii) preparing styrene-acrylic emulsion comprises (a) taking initiator (potassium persulfate) to prepare solution, taking small amount of sodium bicarbonate to prepare solution, taking small amount of polyvinyl alcohol to prepare solution, emulsifier A (anionic surfactant), emulsifier B (nonionic surfactant), de-ionized water, styrene, butyl acylate, methyl methacrylate, ammonia water (b) adding emulsifier A, emulsifier B, alcohol, de-ionized water, styrene, methyl methacrylate, butyl acylate, acrylic acid and sodium bicarbonate solution into the reactor, fast stirring to obtain pre-emulsion claimed, (c) adding pre-emulsion and initiator aqueous solution into the four-opening flask, stirring at low speed, temperature, presence of blue light to obtain seed emulsion, and (d) adding the rest part in the seed emulsion after ending the reaction, adding aqueous ammonia to adjust to alkalescence, preparing graphene oxidecarbon nanotube hybrid body prepared by step (ii) of weighing the preparation of polymer nanocomposite material to obtain styrene-acrylic emulsion (iv) taking de-ionized water, ultrasonically dispersion, taking (iii), adding styrene-acrylic emulsion, ultrasonic and mechanical stirring, molding and vacuum drying, where the raw materials comprises functionalized graphene oxide, multi-wall carbon nanometre pipe, styrene-acrylic emulsion, preparing high-content carbon nanotube via the ordered step-graphene oxide polymer composite