Modified waste and old rubber, preparation method thereof and sound insulation mortar

A waste rubber and modification technology, applied in the field of building materials, can solve the problems of no sound insulation, easy to float, no mechanical properties, etc.
CN112209648AInactive Publication Date: 2021-01-12GUANGDONG BOZHILIN ROBOT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG BOZHILIN ROBOT CO LTD
Publication Date
2021-01-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to modified waste and old rubber, a preparation method thereof and sound insulation mortar. The preparation method of the modified waste and old rubber comprises the following steps: taking 100-mesh waste rubber particles with the particle size of 50 meshes, soaking in an alkaline solution, taking out, drying, freezing at the temperature of -20 DEG C to 15 DEG C to prepare arubber particle intermediate, mixing the rubber particle intermediate and cement, adding water, and standing for 10 hours to enable the cement to be subjected to prehydration reaction. The waste and old rubber particles are physically and chemically modified in advance, so that the hydrophilicity of the waste rubber particles is improved, the air entraining effect of the waste rubber particles ina cement-based material is reduced, the waste rubber particles are more tightly combined with a hydration product of a gel material, the overall mechanical strength of the sound insulation mortar is kept, and the sound insulation mortar is not prone to cracking. Meanwhile, the density of the waste rubber particles is increased, the waste rubber particles are not prone to floating upwards after being added into cement mortar, and the sound insulation effect is good.
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Description

Technical field

[0001] The invention relates to the technical field of building materials, in particular to modified waste rubber, a preparation method thereof and sound insulation mortar.Background technique

[0002] On the one hand, waste rubber is solid waste, including waste tires and other waste rubber products. With the rapid economic development, the number of vehicles has increased sharply, and the average life of automobile tires is about 2 years. Therefore, the pressure on disposal of waste tires is increasing. According to statistics, the stock of waste rubber tires in the world has reached more than 3 billion, and the number is increasing by 1 billion every year. Waste rubber tires (the main components are natural rubber and synthetic rubber) are called "black pollution", which not only deteriorates the natural environment and destroys plant growth, but also easily causes epidemic diseases. Therefore, how to dispose of waste rubber is an urgent problem to be solved. At present...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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