Microwave catalytic activation rubber powder composition and preparation method therefor

A technology for activating rubber powder and microwave catalysis, which is applied in building structures, building components, building insulation materials, etc., can solve the problems of low rubber powder dosage and poor storage stability of rubber powder modified asphalt, reducing energy consumption, The effect of less heat loss and longer service life

Inactive Publication Date: 2016-03-23
TIANJIN HI TECH ENVIRONMENT DEV CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a microwave catalytically activated rubber powder composition and its preparation method, which can not only solve the problem of comprehensive utilization of waste rubber powder, but also solve the poor storage stability of rubber powder modified asphalt , The problem of low rubber powder content

Method used

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  • Microwave catalytic activation rubber powder composition and preparation method therefor
  • Microwave catalytic activation rubber powder composition and preparation method therefor
  • Microwave catalytic activation rubber powder composition and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0033] 1. Preparation of catalytically activated rubber powder composition

[0034] Prepare the catalytically activated rubber powder composition of Examples 1-9 according to the components listed in Table 1 and their consumption, premix according to the above steps, and carry out under the microwave radiation power and radiation time listed in Table 1 Activation treatment to prepare catalytically activated rubber powder composition.

[0035] Table 1

[0036]

[0037] 2. Preparation of rubber powder modified asphalt

[0038] The modified asphalt was prepared by using the asphalt and the catalytically activated rubber powder composition prepared in Examples 1-9 according to the components and dosages listed in Table 2.

[0039] Table 2

[0040]

[0041] The preparation method of rubber powder modified asphalt is to heat the base asphalt to 185-190°C, add a certain proportion of the catalytically activated rubber powder composition prepared in Examples 1-9 to it, and he...

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Abstract

The invention relates to a microwave catalytic activation rubber powder composition and a preparation method therefor and belongs to the chemical technology field. The microwave catalytic activation rubber powder composition comprises 100 parts of waste rubber powder, 5-15 parts of softener and 0.3-2 parts of activator. By utilization of radiation effects of microwaves, S-S, C-S crossing bonds of waste tyre rubber powder are damaged fully selectively, thus the stereoscopic crossing net is fractured, the waste tyre rubber powder has a fluffy surface after microwave catalytic activation treatment, mutual permeability and the reaction activity of phase interfaces are raised, and therefore rubber powder composition and asphalt have compatibility.

Description

technical field [0001] The invention belongs to the recycling field of waste rubber, and relates to a microwave catalytically activated rubber powder composition and a preparation method thereof. Background technique [0002] In recent years, the development of domestic road traffic has put forward higher and higher requirements for the performance of asphalt pavement. However, because ordinary asphalt concrete can't solve the contradiction between high-temperature stability and low-temperature crack resistance, many rutting and cracking early failure phenomena appear on asphalt pavement in my country, which seriously affects the efficiency of highway use. Polymer modified asphalt is recognized as an excellent pavement material because of its excellent high and low temperature performance. It has been widely recognized in the industry to improve the performance of matrix asphalt by adding polymers, but the price of styrene butadiene block copolymer (SBS) Expensive lead to h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/28C08L17/00C08L95/00
CPCC08J11/28C08J2317/00C08L95/00C08L17/00Y02W30/62
Inventor 李翠红余强东俊云
Owner TIANJIN HI TECH ENVIRONMENT DEV CO LTD
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