Modified bitumen waterproof membrane compound, modified bitumen waterproof membrane compound, preparation method and application thereof

A waterproof membrane and modified asphalt technology, which is applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve the problems of easy generation of a large number of pores, low temperature cracking resistance and poor bonding performance, and achieve excellent Effect of heat aging low temperature performance, short modification time and low modification temperature

Active Publication Date: 2022-06-07
德州科顺建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of existing modified asphalt waterproofing membranes, which have poor low-temperature cracking resistance and bonding performance after aging, and are prone to produce a large number of pores

Method used

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  • Modified bitumen waterproof membrane compound, modified bitumen waterproof membrane compound, preparation method and application thereof
  • Modified bitumen waterproof membrane compound, modified bitumen waterproof membrane compound, preparation method and application thereof
  • Modified bitumen waterproof membrane compound, modified bitumen waterproof membrane compound, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0064] Preparation Example 1: Preparation of compound asphalt I

[0065] (1) The 50# asphalt is treated as a de-lighting component to obtain the de-lightening asphalt;

[0066] The conditions of the de-lighting component treatment are: the speed of agitation is 1400rpm, the starting temperature is 130 °C, the heating rate is 2 °C / min, and the termination temperature is 160 °C;

[0067] (2) In the presence of oxygen, the conditions for dewaxing treatment of the desurfaceous asphalt are controlled, and the dewaxing asphalt with a wax content of 1.2wt% is obtained;

[0068]The conditions of the dewaxing treatment are: stirring speed 1400rpm, temperature of 270 °C, time 2.5h;

[0069] (3) The dewaxed asphalt is mixed with the 10# asphalt to give the compound asphalt I;

[0070] The mixing conditions are: the speed of agitation is 1400rpm, the temperature is 175 ° C, the time is 50min;

[0071] The amount-to-weight ratio of 10# asphalt and 50# asphalt in the compound asphalt I is 1:7...

preparation example 2

[0072] Preparation Example 2: Preparation of compound asphalt II

[0073] (1) The 50# asphalt is treated as a de-lighting component to obtain the de-lightening asphalt;

[0074] The conditions of the de-lighting component treatment are: the speed of agitation is 1300rpm, the starting temperature is 130 ° C, the heating rate is 2 ° C / min, the termination temperature is 240 ° C;

[0075] (2) In the presence of oxygen, the conditions for controlling the desurfaceting asphalt for dewaxing treatment are controlled, and the dewaxing asphalt with a wax content of 0.9wt% is obtained;

[0076] The conditions of the dewaxing treatment are: the speed of agitation is 1300rpm, the temperature is 260 ° C, and the time is 2h;

[0077] (3) The dewaxed asphalt is mixed with the 10# asphalt to give the compound asphalt II;

[0078] The mixing conditions are: the speed of agitation is 1300rpm, the temperature is 175 ° C, the time is 50min;

[0079] The weight ratio of 10# asphalt and 50# asphalt i...

preparation example 3

[0080] Preparation Example 3: Preparation of compound asphalt III

[0081] The present preparation example is carried out using the same process as preparation Example 1, the difference is that in this preparation example:

[0082] The conditions of the dewaxing treatment in step (2) are different, specifically, the speed of agitation is 1200rpm, the temperature is 240 °C, and the time is 1.5h; the dewaxing asphalt with a wax content of 2.1wt% is obtained.

[0083]To obtain compound asphalt III, the compound asphalt III in the dosage weight ratio of 10# bitumen and 50# asphalt is 1:7, the flash point is 245 ° C, the asphaltene content is 23.5wt.

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Abstract

The invention relates to the field of asphalt waterproof coiled material, and discloses a modified asphalt waterproof coiled material compound, a modified asphalt waterproof coiled material compound and its preparation method and application. The following components: compound asphalt, rubber operating oil, plastomer modifier, elastomer modifier, filler; the compound asphalt is 10# asphalt and 50# asphalt with a content weight ratio of 1:4‑9 and the flash point of the compound asphalt is ≥240°C, and the asphaltene content is ≥23wt%. The modified asphalt waterproof membrane rubber prepared by the composition provided by the present invention has a stronger bonding force between the waterproof membrane and the concrete base surface, and the overlap between the membrane and the membrane. At the same time, the waterproof membrane also has Excellent heat aging low temperature performance.

Description

Technical field [0001] The present invention relates to the field of asphalt waterproofing membrane, specifically, to a modified asphalt waterproofing membrane compound composition, a modified asphalt waterproofing membrane compound and a preparation method and application thereof. Background [0002] At present, when preparing modified asphalt polyester tire waterproofing membrane, 70# matrix asphalt or 90# matrix asphalt is usually used, and the waterproof membrane produced has poor anti-low temperature cracking performance after aging, and the adhesion performance with the building construction base surface is poor. [0003] The modified asphalt waterproofing membrane obtained by the prior art is prone to produce a large number of pores, which affects the appearance performance and impermeability of the coil, and leads to an increase in the amount of coil material after immersion. [0004] CN102559135A discloses an asphalt self-adhesive, which by weight percentage includes: as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J191/00C09J123/08C09J11/08C09J11/04C09J7/30
CPCC09J195/00C09J11/08C09J11/04C09J7/30C08K2003/265C08L2205/025C08L2201/08C09J2495/00C08L95/00C08L91/00C08L23/0853C08L53/02C08K3/34C08K3/26
Inventor 黄祖行刘勤李杰梁刘艳娜
Owner 德州科顺建筑材料有限公司
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