Double-base waterproof roll and preparation method thereof

A waterproof membrane and tire base technology, which is applied in the direction of asphalt material adhesive, adhesive type, film/sheet adhesive, etc., can solve the problem of high elongation, high strength of double tire base waterproof membrane, etc. problems, to achieve high elongation, excellent corrosion resistance and chloride ion penetration resistance, thermal dimensional change stable effect

Inactive Publication Date: 2020-09-08
甘肃大禹防水科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of double base waterproof roll material and its preparation method. The double base base waterproof roll material has high strength and high elongation rate, which solves the contradiction between the strength and elongation rate of traditional materials, and is impervious to water. Good, excellent thermal stability, well ensure the waterproof effect of the membrane

Method used

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  • Double-base waterproof roll and preparation method thereof
  • Double-base waterproof roll and preparation method thereof
  • Double-base waterproof roll and preparation method thereof

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preparation example Construction

[0063] The present invention also provides a preparation method of a double-base waterproof coiled material, the preparation method comprising: forming a lower surface isolation layer, a lower layer of modified asphalt rubber and a lower layer of modified polyethylene tire base by a double-roller pouring process; The intermediate modified asphalt rubber and the upper layer of modified polyethylene tire base are formed by the roller pouring process, and finally the upper layer of modified asphalt rubber and the upper surface isolation layer are formed by the scraping process.

[0064] In the present invention, the long side of the upper surface isolation layer is preferably provided with a 6-12 cm overlapping edge, more preferably a 10 cm overlapping edge.

Embodiment 1

[0067] Step 1: The upper and lower surface isolation layers are both 0.018mm polyolefin elastomer film, and the upper layer modified polyethylene tire base and the lower layer modified polyethylene tire base are both 0.10mm modified high density polyethylene tires base.

[0068] Step 2: The preparation methods of the upper layer modified asphalt rubber, the middle modified asphalt rubber and the lower layer modified asphalt rubber are as follows:

[0069] (1) Open the heat-conducting oil valve of the reactor, inject 49 parts of petroleum asphalt and 10 parts of naphthenic rubber softening oil, stir slowly at a speed of 125r / min, and heat up for the first time after mixing to 120°C, then heat up The time is 1.5h, and the mixture A is obtained;

[0070] (2) After the mixture A is obtained, heat up for the second time, and mix it with 2 parts of butyl rubber after the temperature is raised to 160°C. After mixing for 60min, the rotating speed was 125r / min to obtain mixture B;

...

Embodiment 2

[0076] Step 1: The upper and lower surface isolation layers are both 0.018mm polyolefin elastomer film, and the upper layer modified polyethylene tire base and the lower layer modified polyethylene tire base are both 0.10mm modified high density polyethylene tires base.

[0077] Step 2: The preparation methods of the upper layer modified asphalt rubber, the middle modified asphalt rubber and the lower layer modified asphalt rubber are as follows:

[0078] (1) Open the heat-conducting oil valve of the reactor, pour in 50 parts of petroleum asphalt and 9 parts of naphthenic rubber softening oil, stir slowly at a speed of 125r / min, and heat up for the first time after mixing to 120°C, then heat up The time is 1.5h, and the mixture A is obtained;

[0079] (2) After the mixture A is obtained, heat up for the second time, and mix it with 1 part of butyl rubber after the temperature is raised to 160°C. After mixing for 60min, the rotating speed was 125r / min to obtain mixture B;

...

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Abstract

The invention relates to the technical field of building materials, in particular to a double-base waterproof roll and a preparation method thereof. The structure of the double-base waterproof roll sequentially comprises an upper surface isolation layer, upper modified asphalt mastic, an upper modified polyethylene base, middle modified asphalt mastic, a lower modified polyethylene base, lower modified asphalt mastic and a lower surface isolation layer from top to bottom. The double-base waterproof roll is high in strength and elongation, the contradiction between the strength and the elongation of a traditional material is solved, the water impermeability is good, the thermal stability is excellent, and the waterproof effect of the roll is well guaranteed, no regenerated substance is added, the product quality is greatly improved, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a twin-base waterproof coiled material and a preparation method thereof. Background technique [0002] Modified asphalt waterproofing membranes are mainly used for building waterproofing. At present, the commonly used hot-melt construction waterproofing membranes in the construction industry are mainly modified asphalt polyethylene tire waterproofing membranes and SBS modified asphalt waterproofing membranes. Pavement waterproof membranes are mainly polyester tire modified asphalt and polymer pre-paved P. [0003] SBS modified bitumen waterproofing membrane has the highest tensile strength type II of 800N / 5cm, elongation of 40%, impermeability of 0.3MPa / 30min, and thermal dimensional stability of ≤0.7%. This type of coil base is not waterproof, perishable in the underground environment, has a low elongation rate, and the base will shrink slightly during the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/30C09J195/00C09J153/02C09J109/06C09J123/22C09J123/12C09J11/04C09J11/08C09J7/40
CPCC08L2201/08C08L2205/025C08L2205/035C09J11/04C09J11/08C09J195/00C09J2403/006C09J2495/00C09J7/29C09J7/30C09J7/403C08L53/02C08L9/06C08L23/22C08L23/12C08K3/04
Inventor 郑宪明韩春风王晨苑冰
Owner 甘肃大禹防水科技发展有限公司
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