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  • 专利标题:   Making elastic composite material e.g. tire tread involves uniformly dispersing carbon material e.g. graphene in silicon rubber material, then mixing with bis(triethoxysilylpropyl)tetrasulfide and crosslinking agent and heating to harden.
  • 专利号:   US2018362725-A1, TW614311-B1, DE102018113984-A1, CN109081969-A, JP2019001979-A, TW201905091-A
  • 发明人:   LIN C, LI C, HSU C, TSAI C, LEE T, LI B, LIN Z, LI J
  • 专利权人:   TAIWAN CARBON NANO TECHNOLOGY CORP, TAIWAN CARBON NANO TECHNOLOGY CORP, TAIWAN NANO CARBON TECHNOLOGY CO LTD
  • 国际专利分类:   C08J005/04, C08K003/04, C08K005/548, C08L083/04, B60C001/00, B60C011/00, C08J003/20, C08J003/24, C08K009/02, C08K003/011, C08K007/00, C08K009/00, C08L009/06, C08K013/06, C08L091/00
  • 专利详细信息:   US2018362725-A1 20 Dec 2018 C08K-003/04 201902 Pages: 5 English
  • 申请详细信息:   US2018362725-A1 US006029 12 Jun 2018
  • 优先权号:   TW119785

▎ 摘　　要

NOVELTY - Manufacturing (M1) an elastic composite material, comprises: (a) mixing a carbon material with a silicon rubber material and uniformly dispersing the carbon material in the silicon rubber material to form a mixed compound, where the carbon material is present at 0.01-20 wt.% of the mixed compound, the carbon material comprises single-walled carbon nanotubes, multi-walled carbon nanotubes, graphene and/or graphene oxide, and the carbon material is treated with a functionalization to obtain a substituent group comprising carboxy groups and/or hydroxy groups; (b) mixing the mixed compound with a bis(triethoxysilylpropyl)tetrasulfide and a crosslinking agent to form a mixture, where the crosslinking agent is present at 0.5-2 wt.% of the mixture; and (c) heating the mixture to harden it to obtain the elastic composite material. USE - The methods are useful for manufacturing an elastic composite material (claimed) e.g. a tread rubber for tires. ADVANTAGE - The methods: provide the elastic composite material exhibiting improved life, improved durability, enhanced tensile strength and lengthened hardening time, thus enhancing the processability of the elastic composite material; and reduce the loss factor tan delta by adding a specific ratio of the carbon material and the bis(triethoxysilylpropyl)tetrasulfide in the silicon rubber material, thus providing tires having relatively low rolling resistance and reduce oil consumption, and an energy-saving effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing (M2) an elastic composite material, comprising (a1) mixing the carbon material with a rubber processing oil and uniformly dispersing the carbon material in the rubber processing oil to form a composite, where the carbon material is present at 0.005-10 wt.% of the composite, (b1) mixing the composite with a bis(triethoxysilylpropyl)tetrasulfide and the crosslinking agent to form a mixture, where the crosslinking agent is present at 0.5-2 wt.% of the mixture, and step (c) as per se.