Tire air-tight layer rubber composite containing nano filler StronWiNTC

Abstract

The invention relates to the field of rubber and particularly relates to a tire air-tight layer rubber composite containing a nano filler StronWiNTC. The tire air-tight layer rubber composite is characterized by comprising the following raw materials in parts by weight: 25-45 parts of natural rubber, 20-40 parts of butylbenzene rubber, 15-55 parts of chlorinated butyl rubber, 52-60 parts of carbon black N660, 20-28 parts of StronWiNTC, 4-6 parts of aromatic hydrocarbon oil, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of anti-ageing agent 4020, 1-2 parts of anti-ageing agent RD, 3-4 parts of protective wax OK5194, 3-4 parts of tackifying resin A-90, 1-2 parts of accelerator TMTD (Tetramethylthiuram Disulfide), 1-2 parts of accelerator CZ and 0.5-1.0 part of vulcanizing agent WP5. The tire air-tight layer rubber composite disclosed by the invention can endow good mechanical property and heat stability to the air-tight layer and can improve the air tightness of air-tight layer rubber; and particularly, the tire air-tight layer rubber composite has appropriate advantages on the aspects of performances of elasticity, flexing resistance, stable size, separation performance, elongation at rupture, compression and deformation and the like.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a tire inner-line rubber composition containing nanometer filler powder. Background technique [0002] As we all know, the function of the airtight layer is to maintain the proper inflation pressure of the tire. With the development of radial tires, tubeless and flattened tires, the airtight performance of the tire inner layer is required to be higher and higher. The airtight performance of the compound mainly depends on the raw rubber system and the type and amount of filler. Chlorinated butyl rubber (CIIR) has low air permeability and water permeability, high heat resistance and flex resistance, and can be combined with high unsaturated Rubber works together to become the main system of rubber materials for the inner liner. With the tire industry's demand for lower tire costs, formulators gradually use natural rubber and styrene-butadiene rubber to replace part of chlorinated b...

AI Technical Summary

Problems solved by technology

The airtight performance of the compound mainly depends on the raw rubber system and the type and amount of filler. Chlorinated butyl rubber (CIIR) has low air permeability and water permeability, high heat resistance and flex resistance, and can be combined with high unsaturated Rubber works together to become the main system of rubber materials for the inner liner. With the tire industry's demand for lower tire costs, formulators gradually use natural rubber and styrene-butadiene rubber to replace part of chlorinated butyl rubber to reduce costs, but these two rubbers In particular, the airtightness of natural rubber is much lower than that of chlorobutyl rubber, so it is necessary to develop an innerliner formulation of a new material that improves airtightness