Gutta-percha masterbatch co-blended material capable of being directly used as traditional rubber material

Abstract

The invention relates to a gutta-percha masterbatch co-blended material capable of being directly used as a traditional rubber material. Gutta-percha is hard rubber at room temperature, cannot be directly used as a rubber material, thereby hindering large-scale application of the gutta-percha in rubber industries. The gutta-percha is specially co-blended with other rubber types to prepare a gutta-percha masterbatch. The preparation method can be divided into a dry process and a wet process, wherein the dry process comprises that through a temperature controllable open mill, an internal mixer, an extruder, a mixing machine and other processing devices, the gutta-percha is evenly mixed in other rubber types according to a certain proportion to prepare the co-blended new material; the wet process comprises that through a reaction kettle, a stirring kettle and other devices, the gutta-percha and other rubber types are dissolved in a good solvent according to a proportion and fully stirred to prepare the co-blended new material through solvent recovery and other processes. According to the processes, the gutta-percha raw masterbatch can be prepared; other auxiliary agents are added to prepare the gutta-percha composite masterbatch, and the barrier is cleared up for large-scale market application of the gutta-percha.

Description

technical field [0001] The invention relates to a new eucommia gum masterbatch blending material which can be directly used as a traditional rubber material and a preparation method. Background technique [0002] In 2014, my country consumed 4.8 million tons of natural rubber, of which 870,000 tons were self-produced and 4.22 million tons were imported. The dependence on foreign countries exceeds 80%, and the situation is very grim. Therefore, based on the country, developing a second natural rubber resource that can completely replace clover natural rubber is an effective way to break my country's heavy dependence on imports of natural rubber. At present, the most promising second rubber sources in China are dandelion rubber originating in Kazakhstan and the Tianshan region on the border of Xinjiang, China; guayule rubber originating in northern Mexico and Eucommia rubber unique to my country. [0003] Eucommia ulmoides, a single family, single genus, deciduous tree, nati...

AI Technical Summary

Problems solved by technology

However, due to the crystallization characteristics of Eucommia gum, it has encountered obstacles in the traditional rubber processing technology, especially in tire processing.

The specific performance is as follows: 1) Eucommia gum requires medium and high temperature processing due to crystallization, which is not in line with the existing low-temperature rubber processing equipment; 2) Eucommia rubber composite tread will become hard due to crystallization, resulting in difficulty in forming the tire blank; 3) Eucommia rubber composite tread will The viscosity is lost due to crystallization, and the joints of the treads are not easy to bond; 4) When the Eucommia rubber compound tread enters the tire mold for vulcanization, the fluidity of the rubber material will become poor due to crystallization, resulting in prolonged filling of the mold cavity by the rubber material, or causing The tire is scrapped due to partial lack of rubber

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