Vulcanized crosslinked asphalt waterproof coiled material

A kind of asphalt waterproof membrane, vulcanization and cross-linking technology, applied in the direction of building insulation materials, chemical instruments and methods, building components, etc., can solve the problems of long reaction time, high temperature of polymer melting, high production cost, etc., and achieve the improvement of mechanical strength and high temperature resistance, improve high temperature resistance, and reduce production costs

Inactive Publication Date: 2020-11-13
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But as far as the current SBS modified bitumen waterproofing membrane is concerned, there is only physical mixing between SBS and bitumen, and no chemical reaction occurs. A large amount of SBS or other polymers are needed to strengthen the bitumen. This method takes a long time to react and will Polymer melting requires higher temperature and higher production cost

Method used

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  • Vulcanized crosslinked asphalt waterproof coiled material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A formula of vulcanized cross-linked asphalt waterproofing membrane is: 100 parts of petroleum asphalt, 24 parts of naphthenic oil, 9 parts of modifier, 0.7 parts of vulcanizing agent BIPB, 10 parts of waste rubber powder, and 92 parts of talcum powder.

[0019] Add asphalt and naphthenic oil into the reaction kettle and mix and stir, heat up to 190°C after melting, add modifier SBS, stir and keep warm for 2 hours, until SBS is completely integrated into the asphalt system, add the measured vulcanizing agent, stir and keep warm for 0.5h, add Waste rubber powder, stir and keep warm for 1 hour, add talcum powder, stir and keep warm for 1 hour, and then get modified asphalt. Subsequent steps such as impregnation, compound molding and curling are carried out on the tire base.

Embodiment 2

[0021] A formula of vulcanized cross-linked asphalt waterproofing membrane is: 100 parts of petroleum asphalt, 24 parts of naphthenic oil, 9 parts of modifier, 0.9 parts of vulcanizing agent BIPB, 10 parts of waste rubber powder, and 92 parts of talcum powder.

[0022] Add asphalt and naphthenic oil into the reaction kettle and mix and stir, heat up to 190°C after melting, add modifier SBS, stir and keep warm for 2 hours, until SBS is completely integrated into the asphalt system, add the measured vulcanizing agent, stir and keep warm for 0.5h, add Waste rubber powder, stir and keep warm for 1 hour, add talcum powder, stir and keep warm for 1 hour, and then get modified asphalt. Subsequent steps such as impregnation, compound molding and curling are carried out on the tire base.

Embodiment 3

[0024] A formula of vulcanized cross-linked asphalt waterproofing membrane is as follows: 100 parts of petroleum asphalt, 24 parts of naphthenic oil, 9 parts of modifier, 2 parts of vulcanizing agent Shuangwuwu, 10 parts of waste rubber powder, and 92 parts of talcum powder.

[0025] Add asphalt and naphthenic oil into the reaction kettle and mix and stir, heat up to 190°C after melting, add modifier SBS, stir and keep warm for 2 hours, until SBS is completely integrated into the asphalt system, add the measured vulcanizing agent, stir and keep warm for 0.5h, add Waste rubber powder, stir and keep warm for 1 hour, add talcum powder, stir and keep warm for 1 hour, and then get modified asphalt. Subsequent steps such as impregnation, compound molding and curling are carried out on the tire base.

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Abstract

The invention relates to a vulcanized crosslinked asphalt waterproof coiled material. The vulcanized crosslinked asphalt waterproof coiled material is prepared from the following raw materials in parts by weight: 100 parts of petroleum asphalt, 24 parts of naphthenic oil, 9 parts of a modifier, 0.5-3 parts of a vulcanizing agent, 10 parts of waste rubber powder and 92 parts of talcum powder. Polyester fibers serve as a base, the upper surface and the lower surface of the base are coated with modified asphalt layers, the surfaces of the modified asphalt layers are coated with isolation layers;and the modified asphalt is located between the isolation layer and the base layer. A vulcanizing agent is added in the production process, so that asphalt and asphalt as well as asphalt and the modifier carry out a crosslinking reaction to form a three-dimensional crosslinked network structure, and the mechanical strength and the high-temperature resistance of the asphalt waterproof coiled material can be effectively improved. The invention provides a new idea for improving the high temperature resistance of the SBS waterproof coiled material, the adopted production process is simple, the energy consumption is lower, and the production cost can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of waterproof materials, and in particular relates to a vulcanized modified asphalt waterproof coiled material and a preparation method thereof. Background technique [0002] Bituminous waterproofing membranes are generally used in the field of building waterproofing, mainly for building walls, roofs, tunnels, roads, landfills, etc. At present, SBS (styrene-butadiene-styrene) modified bitumen waterproof membrane is the mainstream product of new waterproof materials, and it is the first preferred waterproof material in my country. It is the most produced, used and dominant waterproof material. SBS modified asphalt waterproofing membrane generally uses polyester fiber as the tire base, SBS modified petroleum asphalt rubber as the impregnated cover layer of the base, and PE film as the isolation layer of the impregnated cover layer. Modified asphalt waterproof roll The material is processed through material se...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B9/00B32B9/04B32B17/02B32B17/06B32B17/10B32B33/00C08L95/00C08L91/00C08L19/00C08L53/02C08K3/34
CPCB32B5/02B32B9/00B32B9/047B32B17/06B32B17/10B32B27/12B32B27/32B32B2255/02B32B2255/26B32B2262/0276B32B2262/101B32B2307/306B32B2419/00C08L95/00C08L2201/08C08L2205/035C08L91/00C08L19/003C08L53/02C08K3/34
Inventor 邬素华王浩喜
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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