Migration-free low-Mooney rebound reclaimed rubber and preparation method thereof

Abstract

The invention relates to migration-free low-Mooney rebound reclaimed rubber and a preparation method thereof. Whole tire rubber powder, an environment-friendly migration-free regeneration activator B910, swelling agent castor oil, tackifier wood rosin, reinforcing resin RE resin, a deodorant montmorillonite nanometer reaction auxiliary agent, adsorbent white carbon black, a Mooney control agent CTP and Friedel-Crafts alkene are adopted. According to a reasonable proportion, a rubber recovery machine system independently researched and developed by our company is selected, and the technologicalprocess is strictly controlled, so that the prepared reclaimed rubber has excellent performance, achieves the effects of no migration on the surface of the reclaimed rubber, low Mooney rebound value,high-standard use performance, technological performance and physical and mechanical properties, and can be applied to soles and color-matching rubber products.

Description

technical field [0001] The invention belongs to the technical field of reclaimed rubber, and in particular relates to a non-migration, low Mooney rebound reclaimed rubber and a preparation method thereof. Background technique [0002] my country is the world's largest producer and consumer of reclaimed rubber. Recently, the annual consumption of reclaimed rubber is about 4.7 million tons. However, there is still a certain gap from the reclaimed rubber manufacturing powerhouses. The output is large and the grade is low, which cannot meet the national standards and the requirements of domestic and foreign users for no surface migration and low Mooney viscosity value. This is mainly because the traditional method of producing reclaimed rubber is outdated and has no Able to carry out multi-functional raw material development and reform of modern technology across industries. Low migration and low Mooney rebound reclaimed rubber products with superior comprehensive performance a...

AI Technical Summary

Problems solved by technology

[0003] Common full-tire reclaimed rubber in the industry uses coal tar or heavy asphalt oil as a softener, and its desulfurization and swelling properties are low. The Mooney reduction is achieved by subsequent continuous and repeated mechanical processing. After parking, the mooney rebounded seriously (30-45 / month in summer), which brought obvious processing difficulties to customers, and complaints occurred frequently

[0004] Chinese patent CN 109942923A discloses a formula for Mooney viscosity-stabilized reclaimed rubber, which is made of waste rubber powder, softener and stabilizer LJR-1, wherein the softener is coal tar, aromatic oil, pine tar, tall oil, Naphthenic oil, dipentene, paraffin oil, oleic acid, rosin or a mixture of several kinds; this patent adds a large amount of black softener coal tar during the regeneration process, and the prepared reclaimed rubber has a very unpleasant smell. greater pollution

Images