Self-adhesive polymer modified bituminous waterproof roll material and preparation method thereof

A technology of modified asphalt and waterproof membrane, which is applied in asphalt coatings, coatings, textiles and papermaking, etc. It can solve the problems of low small molecule mobility and self-adhesive membranes that cannot have high mechanical properties at the same time

Active Publication Date: 2019-06-04
北京路德永泰环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The main purpose of the present invention is to provide a self-adhesive polymer modified bitumen waterproof membrane and its preparation method to sol...

Method used

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  • Self-adhesive polymer modified bituminous waterproof roll material and preparation method thereof
  • Self-adhesive polymer modified bituminous waterproof roll material and preparation method thereof
  • Self-adhesive polymer modified bituminous waterproof roll material and preparation method thereof

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preparation example Construction

[0041] According to another aspect of the present invention, there is also provided a method for preparing a self-adhesive polymer-modified asphalt waterproof membrane, which includes the following steps: mixing and dispersing asphalt, a modifier and a first filler to obtain a rubber compound; and The glue is impregnated or coated on the surface of the felt cloth, and the roll is formed to obtain a coiled material.

[0042] In the above preparation method, besides asphalt and the first filler, modifiers are also used as raw materials. The modifier uses linearized active rubber, which is obtained by desulfurization treatment of waste rubber powder, and the weight percentage of linearized molecules in the linearized active rubber is ≥ 75%. The linearized reactive rubber basically belongs to linearized macromolecules or has a high content of linearized macromolecules. It can form a tight interface with other components when used for self-adhesive membrane modification, so it can ...

Embodiment 1 to 17

[0064] All utilize following method to carry out waste rubber desulfurization regeneration treatment in these embodiments:

[0065] Step 1: Put 80-mesh waste tire rubber powder and photocatalyst into the high-speed mixing unit, stir at a stirring speed of 1000rpm for 20 minutes until the temperature reaches 70°C, stop stirring, put the material into the cooling unit to cool and discharge, and obtain a mixture ;

[0066] Step 2: Put the mixture into a supercritical carbon dioxide reactor, use a high-pressure pump to inject carbon dioxide gas into the reactor to adjust the pressure in the reactor, and raise the temperature at the same time to convert the carbon dioxide gas into a supercritical state; start stirring to make the mixture in the supercritical state Swell in critical carbon dioxide to obtain a swelling mixture;

[0067] Step 3: Maintain the above-mentioned supercritical carbon dioxide environment, start the built-in ultraviolet light source to irradiate the swelling...

Embodiment 18

[0074] The technological process in this embodiment is the same as embodiment 9, and difference is:

[0075] Step 1: Put 120 mesh waste tire rubber powder and photocatalyst into the high-speed mixing unit, stir at a stirring speed of 700 rpm for 30 minutes until the temperature reaches 60°C, stop stirring, put the material into the cooling unit to cool and discharge, and obtain mixture.

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Abstract

The invention provides a self-adhesive polymer modified bituminous waterproof roll material and a preparation method thereof. The self-adhesive polymer modified bituminous waterproof roll material isprepared from, by weight, 37-55 parts of bitumen, 25-50 parts of a modifying agent and 10-25 parts of first filler. The modifying agent comprises linearized activated rubber, second filler and a rubber cross-linking additive. The linearized activated rubber is obtained by desulfurization of waste rubber powder, and the weight percentage content of linearized molecules is larger than or equal to 75%. The modifying agent comprises the highly linearized activated rubber obtained by desulfurization of waste rubber powder, and close interface combination can be formed between the modifying agent and components of the roll material. The linearized activated rubber intrinsically comprises some gradient small molecules to serve as a softening agent, and adhesiveness of the roll material can be effectively improved without adding of a micromolecular softening agent and the like in an application process. Further, due to a proportional relation of the components, the roll material has advantagesof excellent mechanical performances, high adhesiveness and low micromolecular mobility.

Description

technical field [0001] The invention relates to the technical field of organic materials, in particular to a self-adhesive polymer modified asphalt waterproof coiled material and a preparation method thereof. Background technique [0002] In view of the safety of open flames in the construction process of traditional elastomeric membranes (SBS modified asphalt membranes), environmental pollution problems, and problems such as poor adhesion to the base layer caused by the sticking of fire-baked membranes, self-adhesive membranes (self-adhesive polymerized Polymer modified bitumen waterproof membrane) has its advantages in construction and bonding performance, so the application range of self-adhesive membrane is more and more extensive, and it has the potential to replace the traditional elastomer membrane. [0003] The adhesiveness and bonding strength of the self-adhesive membrane are generally formed by the action of small molecule softening oil, petroleum resin and high m...

Claims

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Application Information

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IPC IPC(8): D06N5/00C09D195/00C09D117/00
CPCY02P20/54
Inventor 董进学郭敬伟魏艳萍
Owner 北京路德永泰环保科技有限公司
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