• 专利标题:   Wear-resistant polyethylene includes modified polyethylene, modified lignin sodium, chitosan modified graphene oxide and cellulose modified graphene oxide.
  • 专利号:   CN113698722-A, CN113698722-B
  • 发明人:   ZHANG J
  • 专利权人:   ZHANG J, DONGYING DONGDA MACHINERY MFR CO LTD
  • 国际专利分类:   C08K003/04, C08K009/04, C08L097/00, C08L051/06
  • 专利详细信息:   CN113698722-A 26 Nov 2021 C08L-051/06 202205 Chinese
  • 申请详细信息:   CN113698722-A CN10998865 28 Aug 2021
  • 优先权号:   CN10998865

▎ 摘  要

NOVELTY - Wear-resistant polyethylene includes 70 to 90 pts. wt. modified polyethylene, 8 to 15 pts. wt. modified lignin sodium, 10-15 pts. wt. chitosan modified graphene oxide and 8-15 pts. wt. cellulose modified graphene oxide. The modified sodium lignin is prepared from sodium lignosulfonate and 1,6-dibromohexane. USE - Wear-resistant polyethylene. ADVANTAGE - The wear-resistant polyethylene has excellent wear-resisting property when friction with metal. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing wear-resistant polyethylene, which involves mixing chitosan with acetic acid solution, adjusting the pH, adding graphene oxide dispersion, stirring and mixing, filtering to obtain pretreated chitosan-modified graphene oxide, mixing the pretreated chitosan modified graphene oxide with phosphoric acid solution, adding ethylenediamine and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, stirring the reaction, filtering, and drying to obtain chitosan-modified graphene oxide, mixing aldehyde-based cellulose and graphene oxide in an organic solvent, and adding cerium ammonium nitrate and ammonium persulfate, stirring the reaction, adding triethylenediamine, continue to stir the reaction, filter, wash, freeze-dry to obtain cellulose modified graphite oxide, mixing sodium lignosulfonate with water, adjusting the pH, adding potassium iodide and 1,6-dibromohexane ethanol solution, stirring the reaction, extracting, filtering and freeze-dry to obtain the modified sodium lignin blank, mixing the modified sodium lignin billet with ethanol solution, standing, filtering, and drying to obtain modified sodium lignin, mixing the chitosan-modified graphene oxide with the cellulose-modified graphene oxide to obtain mixed modified graphene oxide, mixing the mixed modified graphene oxide with modified polyethylene, adding the modified sodium lignin, melt extrusion, pelletizing to obtain wear-resistant polyethylene.