• 专利标题:   Antistatic foamed PVC is prepared by mixing surfactant made of e.g. glyceryl monostearate, reduced graphene oxide, and carbon nanotubes to obtain black mixture, mixing with PVC, pelletizing to prepare antistatic masterbatch, and foaming.
  • 专利号:   CN112266548-A
  • 发明人:   CHEN H, ZHANG Y, SONG L, SUN Y, HUANG T
  • 专利权人:   SHANDONG LUTAI CHEM CO LTD
  • 国际专利分类:   C08J009/00, C08K013/02, C08K003/04, C08K005/103, C08K005/5435, C08L027/06
  • 专利详细信息:   CN112266548-A 26 Jan 2021 C08L-027/06 202118 Pages: 8 Chinese
  • 申请详细信息:   CN112266548-A CN11039106 28 Sep 2020
  • 优先权号:   CN11039106

▎ 摘  要

NOVELTY - A long-lasting antistatic foamed PVC is prepared by: (1) heating and melting glyceryl monostearate, adding oleic acid and KH560 (RTM: 3-Glycidoxypropyltrimethoxysilane), thoroughly stirring and mixing to obtain a surfactant, improving the interface compatibility between carbon materials and PVC, and increasing the bonding strength; (2) fully and uniformly mixing the surfactant, reduced graphene oxide and carbon nanotubes in a mixer to obtain a slightly sticky black mixture; (3) mixing the black mixture with PVC according to the mass ratio of 1:10, and introducing into a pelletizer for pelletizing to prepare an antistatic masterbatch; and (4) evenly mixing the antistatic masterbatch with PVC, and introducing into a foaming machine or an extruder for processing and foaming, which is a traditional process. The mass ratio of reduced graphene oxide and carbon nanotubes is 1:1. The mass ratio of surfactant to graphene and carbon nanotubes is 1:10. USE - Long-lasting antistatic foamed PVC. DETAILED DESCRIPTION - A long-lasting antistatic foamed PVC is prepared by: (1) heating and melting glyceryl monostearate, adding oleic acid and KH560 (RTM: 3-Glycidoxypropyltrimethoxysilane) according to the mass ratio of 1:1:1, thoroughly stirring and mixing to obtain a surfactant, improving the interface compatibility between carbon materials and PVC, and increasing the bonding strength; (2) fully and uniformly mixing the surfactant, reduced graphene oxide and carbon nanotubes in a mixer to obtain a slightly sticky black mixture; (3) mixing the black mixture with PVC according to the mass ratio of 1:10, and introducing into a pelletizer for pelletizing to prepare an antistatic masterbatch; and (4) evenly mixing the antistatic masterbatch with PVC, and introducing into a foaming machine or an extruder for processing and foaming, which is a traditional process. The mass ratio of reduced graphene oxide and carbon nanotubes is 1:1. The mass ratio of surfactant to graphene and carbon nanotubes is 1:10. The color of the prepared long-acting anti-electric foamed PVC is gray and gray-black. The color of expanded PVC depends on the content of reduced graphene oxide and carbon nanotubes.