Rubber modifier preparation method

Abstract

The invention provides a rubber modifier preparation method, which comprises: weighing rubber powder, an active agent, a plastic polymer material and a softener according to a weight ratio, uniformlymixing, and heating and blending for a certain time at a high temperature to obtain the rubber modifier. According to the present invention, the prepared rubber modifier has excellent aging resistanceand low viscous flow temperature, can be used for dry preparation of rubber asphalt mixtures and wet preparation of rubber asphalt, and can reduce the heating temperature of asphalt and asphalt mixtures so as to prevent the high temperature aging of asphalt and greatly reduce the energy consumption and the carbon emission; the product is easy to store, can effectively save the stirring, transporting and storing costs, and can greatly reduce the production cost; and with the preparation method, various components are mixed and heated to obtain the rubber modifier, such that the method is simple, the requirements on equipment are simple, and the industrial mass-production can be achieved.

Description

technical field [0001] The invention relates to the field of material synthesis, in particular to a preparation method of a rubber modifier. Background technique [0002] At present, my country's annual average rubber consumption accounts for 30% of the world's total rubber consumption, and has become a major consumer of rubber resources. Tires are the most important rubber products in my country. In 2009, my country's production of tires consumed rubber that accounted for the total consumption of rubber resources in the country. About 70% of the waste tires produced annually are about 233 million, with a weight of about 8.6 million tons, equivalent to about 3 million tons of rubber resources. If it can be fully recycled and reused, it is equivalent to the natural rubber output of my country for 5 years. [0003] The total stock of waste tires in my country ranks second in the world. Obviously, the amount of waste tires processed in my country is huge. Therefore, how to dea...

AI Technical Summary

Problems solved by technology

[0004] Since the first British patented rubber asphalt was used in 1843, people have been committed to the research, industrialization and promotion of the technology and application of rubber recycled from waste tires in road asphalt pavement construction, which can significantly improve the asphalt mixture. The temperature-sensitive performance of the material can reduce the environmental noise generated by driving, prolong the service life of the asphalt pavement, and improve the service function of the asphalt pavement; but there are still the following disadvantages: the early rubber asphalt products need special rubber asphalt modification equipment to produce, not It is suitable for small-scale engineering construction, and the amount of rubber added is limited, so the amount of waste rubber to be processed is limited; the early rubber asphalt technology construction is more difficult: when rubber asphalt and its mixture are constructed, the temperature requirements are more stringent, and the basic requirement is greater than 190 degrees At the same time, the viscosity is very high, and the construction workability is poor; environmental pollution: when the rubber asphalt of the general technology is constructed, the smell is very strong, and the construction personnel need to be protected, which seriously hinders the promotion of rubber asphalt; the early rubber powder can only be used directly. Powder is put into asphalt and mixed for production (wet method), or rubber powder can only be put into asphalt mixture and mixed for production (dry method), and it has been unable to produce high-quality asphalt mixture that can be used for the two methods Restrictions: Early rubber asphalt technology must be used for more than 24 hours after production, otherwise it will dissolve and greatly reduce the viscosity, or sedimentation will occur and cannot be used, and it cannot be stored in the tank, and must be directly connected to the mixing plant for use