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A self-adhesive modified asphalt coating material and its preparation method and modified asphalt waterproof membrane

A technology of modified asphalt and waterproof membrane, which is applied in the direction of building insulation materials, building components, buildings, etc. It can solve the problems of poor water stability, high production cost, and low bonding strength of bio-asphalt, and achieve good adhesion, Effect of short residence time and improved adhesive performance

Active Publication Date: 2021-08-06
广东东方雨虹建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of poor water stability and high temperature resistance of existing biological asphalt, and the use of a large number of polymer modifiers and tackifying resins causes weak initial adhesion and poor adhesion of self-adhesive asphalt waterproofing membranes at low temperatures. Problems such as low strength and high production cost

Method used

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  • A self-adhesive modified asphalt coating material and its preparation method and modified asphalt waterproof membrane

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preparation example Construction

[0039] In the embodiment of the present invention, the preparation method of self-adhesive modified asphalt coating material comprises:

[0040] (1) Inject high-grade petroleum asphalt into the modified asphalt coating reaction kettle, raise the temperature to 180°C, add polymer modifier, start the colloid mill and stir for 1 hour;

[0041] (2) Add rubber powder in two batches, keep the temperature at 180°C, keep the colloid mill turned on, and stir in circulation for 1.5 hours;

[0042] (3) Turn off the colloid mill, turn off the heat transfer oil, put in the filler and stir at a speed of 800rpm for 1 hour, cool down to less than 160°C, then add bio-asphalt, and stir at a speed of 800rpm for 10 minutes to obtain the self-adhesive modified asphalt Covering material.

[0043]In the embodiment of the present invention, the preparation method of the modified asphalt waterproof coil includes: coating the self-adhesive modified asphalt coating material after soaking the tire base ...

Embodiment 1

[0045] This embodiment provides a self-adhesive modified asphalt coating material, the self-adhesive modified asphalt coating material includes:

[0046] 50 parts by weight of No. 110 petroleum asphalt, 10 parts by weight of 1401 type SBS modifier, 10 parts by weight of 80 mesh rubber powder, 18 parts by weight of talcum powder, and 5 parts by weight of bio-asphalt.

[0047] The self-adhesive asphalt coating material is prepared according to the above formula, and then the self-adhesive asphalt coating material is prepared into a self-adhesive asphalt waterproof coiled material.

Embodiment 2

[0049] This embodiment provides a self-adhesive modified asphalt coating material, the self-adhesive modified asphalt coating material includes:

[0050] 45 parts by weight of No. 130 petroleum asphalt, 4 parts by weight of 1401 type SBS modifier, 5 parts by weight of SBR modifier, 13 parts by weight of 80 mesh rubber powder, 15 parts by weight of heavy calcium, and 10 parts by weight of bio-asphalt.

[0051] The self-adhesive asphalt coating material is prepared according to the above formula, and then the self-adhesive asphalt coating material is prepared into a self-adhesive asphalt waterproof coiled material.

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Abstract

The invention discloses a self-adhesive modified asphalt coating material, a preparation method thereof and a modified asphalt waterproof coiled material. The self-adhesive modified asphalt coating material includes: 20-70 parts by weight of high-grade petroleum asphalt, 5-30 parts by weight of polymer modifier, 5-30 parts by weight of rubber powder, 5-40 parts by weight of filler, 5 parts by weight of bio-asphalt ‑50 parts by weight; the high-grade petroleum asphalt is selected from at least one of the 110‑200# petroleum asphalt; the source of the biological asphalt is a plant resource. The invention can significantly improve the initial tack at low temperature and normal temperature; can significantly improve the bonding performance of self-adhesive bitumen waterproof membrane; can improve heat resistance; after thermal aging, the bonding performance can be kept significantly improved, and the Due to its good adhesion to the base layer, the failure mode is cohesive failure.

Description

technical field [0001] The invention belongs to the field of building waterproofing, and more specifically relates to a self-adhesive modified asphalt coating material, a preparation method thereof and a modified asphalt waterproof coiled material. Background technique [0002] Waterproofing is an indispensable process in modern buildings. There are many kinds of waterproof materials, among which asphalt-based waterproof materials are the current mainstream. As the country pays more and more attention to safety and environmental protection, the application of hot-melt asphalt membranes has been limited. Self-adhesive bitumen waterproofing membrane is growing faster and faster. [0003] Bio-asphalt is an asphalt-like material prepared by liquefaction and separation of forestry resources, urban garbage and animal excrement. This type of material has the characteristics of wide sources, low cost, green, pollution-free and renewable. At present, there are patent applications re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L53/02C08L21/00C08L9/06C08K3/34C08K3/26E04B1/66
CPCC08K2003/265C08L95/00C08L2205/025C08L2205/035E04B1/665C08L53/02C08L21/00C08K3/34C08L9/06C08K3/26C08L53/025
Inventor 张磊段文锋韩忠强葛洋洋郭嘉
Owner 广东东方雨虹建筑材料有限公司
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