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Special waste rubber composite modifier for waterproof roll roofing and preparation method of special waste rubber composite modifier

A composite modifier and waterproof membrane technology, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of weak radiation and corrosion, poor viscosity, etc., and achieve improved physical properties, improved adhesion, and wear resistance homogeneous effect

Inactive Publication Date: 2017-09-19
ANHUI GVG NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to make up for the defects of the prior art, to provide a special waste rubber composite modifier for waterproofing membranes and its preparation method, to solve the problem of waste rubber powder in the traditional simple waste rubber powder directly modified asphalt in the prior art Compatibility between particles and asphalt, poor viscosity, high temperature resistance, radiation and corrosion and other defects

Method used

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  • Special waste rubber composite modifier for waterproof roll roofing and preparation method of special waste rubber composite modifier
  • Special waste rubber composite modifier for waterproof roll roofing and preparation method of special waste rubber composite modifier

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Embodiment Construction

[0024] A special waste rubber compound modifier for waterproof coiled materials, characterized in that it is composed of the following raw material components in the following weight ratio: 13-22% of waste rubber particles, 8-16% of polyaryletherketone, carboxylated polyisoamyl Diene 6-10%, matrix pitch 40-63%.

[0025] The particle size of waste rubber particles is 3-5mm, and the base asphalt is 30# or 45# petroleum asphalt.

[0026] A kind of preparation method of waste rubber composite modifier special for waterproof coiled material, it is characterized in that: comprise the following steps:

[0027] (1) Put the waste rubber granules recovered from waste tires into the reactor and feed them with supercritical CO 2 Make it maintain a certain pressure and fully stir and preheat at a certain temperature, and then add it to the co-rotating full-meshing twin-screw extruder with a three-stage thread structure, which is sequentially transported by the screw to compact the materia...

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Abstract

The invention discloses a special waste rubber composite modifier for waterproof roll roofing and a preparation method of the special waste rubber composite modifier. The special waste rubber composite modifier is prepared from the following raw materials in parts by weight: 13 to 22 percent of waste rubber particles, 8 to 16 percent of polyaryletherketone, 6 to 10 percent of carboxylated polyisoprene and 40 to 63 percent of matrix asphalt. The preparation method of the special waste rubber composite modifier comprises the following steps: firstly, carrying out supercritical CO2 swelling and stirring preheating on waste rubber particles and then regenerating through a twin screw extruder to obtain liquid regenerated rubber; secondly, heating, melting and dehydrating the matrix asphalt, slowly raising the temperature to 210 to 265 DEG C, and then mixing the matrix asphalt with the liquid regenerated rubber to obtain rubber modified asphalt; thirdly, uniformly mixing the rubber modified asphalt with the polyaryletherketone and the carboxylated polyisoprene, carrying out preheating on a mixture, carrying out high-speed shearing by a colloid mill, then feeding a sheared product into a storage tank, and stably developing for a period of time. The special waste rubber composite modifier disclosed by the invention is used for products obtained from high-end waterproof roll roofing; combination properties of high and low temperature resistance, radiation resistance, tear strength and the like are greatly improved, and the waterproof property is excellent.

Description

Technical field: [0001] The invention relates to the technical field of rubber reuse, and mainly relates to a waste rubber compound modifier specially used for waterproof coiled materials and a preparation method thereof. Background technique: [0002] With the development of my country's industrialization and urbanization and the improvement of people's living standards, the harmlessness, reduction and recycling of waste generated in daily life are the basic forms to achieve clean production and circular development. Among them, a large amount of waste rubber The recycling of resources can effectively achieve a win-win situation for the environment and development. [0003] The traditional waste rubber recycling method is mainly in the form of reclaimed rubber, rubber powder, rubber granules, etc., and then directly or through a certain modification with asphalt to obtain waste rubber modified asphalt for waterproofing membranes, road asphalt and certain In some special rub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L71/00C08L13/00B29C47/40
CPCB29C48/40C08L95/00C08L2201/08C08L2205/035C08L21/00C08L71/00C08L13/00Y02P20/54
Inventor 卞小军唐帆李婷蒋水金张开炳
Owner ANHUI GVG NEW MATERIAL CO LTD
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