• 专利标题:   Manufacture of nanomaterials concentrate in polymer involves exfoliating mixture containing carbon nanomaterials, centrifuging obtained dispersion, collecting supernatant, adding polymer matrix, roll milling, degassing, adding hardener, mixing, molding and curing.
  • 专利号:   BR102020018959-A2
  • 发明人:   SILVESTRE ASSIS A L, GOMIDE DE CASTRO V, DOS REIS T M C, VALENCIA J A N, QUEIROZ FERREIRA F L, GOULART SILVA G
  • 专利权人:   UNIV FEDERAL MINAS GERAIS
  • 国际专利分类:   B82Y030/00, B82Y040/00, C08G018/00, C08G059/40, C08G059/50, C08K003/04
  • 专利详细信息:   BR102020018959-A2 29 Mar 2022 C08K-003/04 202239 Pages: 21
  • 申请详细信息:   BR102020018959-A2 BR10018959 23 Sep 2020
  • 优先权号:   BR10018959

▎ 摘  要

NOVELTY - Manufacture of nanomaterials concentrate in polymer involves (a) preparing the carbon nanomaterials directly in the solvent, in amount of 0.5-20 g/L, (b) exfoliating the mixture obtained in step (a) via bath ultrasound, (c) centrifuging the dispersion obtained in step (b) and collecting the supernatant, (d) adding the polymer matrix to the material obtained in step (c), (e) milling by three roll mill the material obtained in step (d), (f) repeating the process in step (e) between 1-15 times, (g) vacuum degassing the material obtained in step (f), (h) adding the hardener to polymer resin in a ratio of 100:05-100:70, (i) mixing via manual or mechanical agitation the material obtained in step (h) until complete homogenization, (j) molding the material obtained in step (i), and (k) performing the cure and post-cure of the material obtained in step (j). USE - Manufacture of nanomaterials concentrate in polymer. ADVANTAGE - The method enables easy and simple manufacture of nanomaterials concentrate in polymer with reduced processing/dispersion steps through the development of processing method with optimization of the preparation time, without the need for expensive solvent removal steps and improved quality of the dispersion.