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Self-adhesive type water stop and production method

A production method and waterstop technology, which are applied in the types of adhesives, adhesives, water conservancy projects, etc., can solve the problems of poor joint handling, inconvenient installation, water leakage, etc., to achieve reliable lap quality and reduce contact area. ,Easy to install in place

Inactive Publication Date: 2017-08-15
四川迈铁龙科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The rubber waterstop and the steel edge rubber waterstop are made of elastomer material, which is more flexible, and the drying shrinkage cracks formed between it and the cast-in-place concrete are smaller, and the waterstop effect is better under ideal conditions; however, due to the construction process of flexible materials It is inconvenient to install, and it is difficult to heat vulcanize butt joints on site, often resulting in misalignment, twisting, and lodging, and poor joint handling, resulting in water leakage

Method used

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  • Self-adhesive type water stop and production method
  • Self-adhesive type water stop and production method

Examples

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preparation example Construction

[0027] The raw materials for the preparation of the hot-melt pressure-sensitive adhesive consist of 100 parts by weight of polyisobutylene, 70-100 parts of styrene-isoprene-styrene, 110 parts of C5 petroleum resin, 3.0 parts of titanium dioxide or carbon 3.0 parts of black, 1.0 part of antioxidant, 0.5 part of light stabilizer, and 0.5 part of ultraviolet absorber.

[0028] The hot-melt pressure-sensitive adhesive is prepared as follows: the raw materials for the hot-melt pressure-sensitive adhesive are added to the kneader in batches, heated, melted and stirred evenly, and the stirring speed is controlled at 100-150 rpm; After each component is completely melted, continue to stir for 1.5-2 hours, and keep the temperature at 160-180°C; finally discharge the material for use.

Embodiment 1

[0030] The raw materials for the preparation of the hot-melt pressure-sensitive adhesive are composed by parts by weight: polyisobutylene 100, styrene-isoprene-styrene 70, C5 petroleum resin 110, titanium dioxide 3.0, antioxidant 1.0, light stabilizer 0.5 , UV absorber 0.5.

[0031] Add the prepared raw materials into the kneader in batches, heat them to melt and stir them evenly, and the stirring speed is controlled at 100-150 rpm; after each component is completely melted, continue stirring for 1.5-2 hours, and keep the temperature At 160 ~ 180 ° C; the final material is ready for use.

[0032] Preheat the waterstop substrate 1 in a drying oven at 80-100°C for 5-10 minutes, then heat the hot-melt pressure-sensitive adhesive to 160-180°C, and coat it on the waterstop after it is completely melted A waterproof adhesive layer 2 is formed on the upper surface and the lower surface of the water-stop section L of the substrate 1 with a thickness of 1.0 mm. After the surface temp...

Embodiment 2

[0035] The raw materials for the preparation of hot-melt pressure-sensitive adhesives are composed by weight parts: polyisobutylene 100, styrene-isoprene-styrene 80, C5 petroleum resin 110, carbon black 3.0, antioxidant 1.0, light stabilizer 0.5 , UV absorber 0.5.

[0036] Add the prepared raw materials into the kneader in batches, heat them to melt and stir them evenly, and the stirring speed is controlled at 100-150 rpm; after each component is completely melted, continue stirring for 1.5-2 hours, and keep the temperature At 160 ~ 180 ° C; the final material is ready for use.

[0037] Preheat the waterstop substrate 1 in a drying oven at 80-100°C for 5-10 minutes, then heat the hot-melt pressure-sensitive adhesive to 160-180°C, and coat it on the waterstop after it is completely melted A waterproof adhesive layer 2 is formed on the upper surface and the lower surface of the water-stop section L of the substrate 1 with a thickness of 1.0 mm. After the surface temperature of...

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Abstract

The invention discloses a self-adhesive type water stop and a production method for effectively improving the installation construction efficiency and the waterproof performance of the water stop. The self-adhesive type water stop comprises water stop base material, the two ends in the transverse direction of the water stop base material are water stop sections, the upper surface and the lower surface of the water stop sections are coated with hot-melt pressure-sensitive adhesive to form waterproof adhesive layers, and the waterproof adhesive layers are externally covered with insulating layers which form bonds with the waterproof adhesive layers. The peel strength and the holding viscosity with concrete of the prepared and adopted hot-melt pressure-sensitive adhesive are far larger than an existing hot-melt pressure-sensitive adhesive, and the hot-melt pressure-sensitive adhesive can form a solid bond with a new pouring concrete structure to ensure that the water stop has excellent adhesion and waterproof performances.

Description

technical field [0001] The invention relates to a waterproof technology for civil engineering construction joints, in particular to a self-adhesive waterstop and a production method. Background technique [0002] Due to the needs of construction technology, construction joints must be left in underground works, including longitudinal horizontal construction joints and circumferential vertical construction joints. Combined with the "Technical Specifications for Waterproofing of Underground Engineering" and engineering practice, it is better to install a buried waterstop in the middle of the construction joint. The existing mid-buried waterstops mainly include steel plate waterstops and rubber waterstops, both of which are quite different in engineering implementation and waterstop effect. The steel plate waterstop is easy to install, but the waterstop effect and durability are not ideal; the rubber waterstop has better waterstop effect and durability, but it is not easy to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16C09J123/22C09J153/02C09J157/02C09J7/02
CPCC08L2205/03C09J123/22C09J7/22C09J7/38C09J2301/124C09J2301/302C09J2301/304E02D29/16C08L53/02C08L57/02
Inventor 丁玉乔熊玉钦甄文战谭宁宋南涛
Owner 四川迈铁龙科技有限公司
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