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Non-asphaltic high polymer self-adhesive waterstop strip and preparation technology thereof

A polymer and non-asphalt technology, applied in non-polymer adhesive additives, water conservancy projects, belts, etc., can solve problems such as groundwater pollution, prolong service life, reduce the risk of pollution and damage to groundwater resources, and improve long-term The effect of stability

Active Publication Date: 2013-06-12
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the formula of butyl putty and modified asphalt binder contains functional additives such as rubber modifier, high-quality reclaimed rubber, vulcanizing agent, accelerator and anti-aging agent, these additives are generally heavy metal salts , long-term use in a water environment, heavy metal salts will migrate out and dissolve in water, causing groundwater pollution

Method used

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  • Non-asphaltic high polymer self-adhesive waterstop strip and preparation technology thereof
  • Non-asphaltic high polymer self-adhesive waterstop strip and preparation technology thereof
  • Non-asphaltic high polymer self-adhesive waterstop strip and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The steps for preparing a non-asphalt polymer self-adhesive waterstop are as follows:

[0030] The first step is to prepare non-bituminous polymer self-adhesive adhesive

[0031] First, pour 8 parts by weight of plasticizer naphthenic oil into the reaction kettle, start the agitator, and heat to 170°C; Pour resin, 2 parts by weight of light absorbing agent titanium dioxide and 1 part by weight of filler calcium carbonate into the reactor, keep the temperature in the reactor at 170°C for 55 minutes; finally turn off the agitator and pour the self-adhesive liquid into the mold In the middle, after the self-adhesive liquid cools to room temperature and solidifies, cut the self-adhesive into pieces and wrap it with release paper;

[0032] The second step is to form non-asphalt polymer self-adhesive adhesive and waterstop base material

[0033] First, preheat the base material of the waterstop in an environment of 90°C for 3 minutes; then remove the release paper and heat ...

Embodiment 2

[0035] The steps for preparing a non-asphalt polymer self-adhesive waterstop are as follows:

[0036] The first step is to prepare non-bituminous polymer self-adhesive adhesive

[0037] First, pour 10 parts by weight of plasticizer naphthenic oil into the reaction kettle, start the stirrer, and heat to 180°C; then add 50 parts by weight of tackifier small molecular weight polyisobutylene, 25 parts by weight of SBS resin, Pour resin, 3 parts by weight of light absorbing agent titanium dioxide and 2 parts by weight of filler calcium carbonate into the reactor, keep the temperature in the reactor at 180°C for 60 minutes; finally turn off the agitator, pour the self-adhesive liquid into the mold, After the self-adhesive liquid cools to room temperature and solidifies, cut the self-adhesive into pieces and wrap it with release paper;

[0038] The second step is to form non-asphalt polymer self-adhesive adhesive and waterstop base material

[0039] First, preheat the base material...

Embodiment 3

[0041] The steps for preparing a non-asphalt polymer self-adhesive waterstop are as follows:

[0042] The first step is to prepare non-bituminous polymer self-adhesive adhesive

[0043]First, pour 12 parts by weight of plasticizer naphthenic oil into the reaction kettle, start the agitator, and heat to 190°C; then add 55 parts by weight of tackifier small molecular weight polyisobutylene, 28 parts by weight of SBS resin, Pour resin, 4 parts by weight of light absorbing agent titanium dioxide and 3 parts by weight of filler calcium carbonate into the reactor, keep the temperature in the reactor at 190°C for 65 minutes; finally turn off the agitator, pour the self-adhesive liquid into the mold, After the self-adhesive liquid cools to room temperature and solidifies, cut the self-adhesive into pieces and wrap it with release paper;

[0044] The second step is to form non-asphalt polymer self-adhesive adhesive and waterstop base material

[0045] First, preheat the base material...

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Abstract

The invention belongs to the technical field of waterstop and waterproof building materials, and discloses a non-asphaltic high polymer self-adhesive waterstop strip and a preparation technology thereof. The waterstop strip is mainly characterized in that the waterstop strip comprises a waterstop strip substrate, wherein ribs, waterstop areas and a deformation area are arranged on the waterstop strip substrate; the waterstop areas are hot applied with non-asphaltic high polymer self-adhesive glue; the non-asphaltic high polymer self-adhesive glue is covered with isolating films; and the non-asphaltic self-adhesive glue comprises SBS (styrene butadiene styrene) resin, SIS (styrene isoprene styrene) resin, a plasticizer (naphthenic oil), a tackifier (small molecular polyisobutene), a light absorber (titanium dioxide) and packing (calcium carbonate). The components of the non-asphaltic high polymer self-adhesive glue do not include volatile oily substances, so that adhesive stability is improved greatly, and the service life is prolonged; in addition, the raw materials of the non-asphaltic high polymer self-adhesive glue are high polymer materials and do not include hazardous substances easy to precipitate in water, so that risks of polluting and damaging underground water resources are decreased.

Description

technical field [0001] The invention belongs to the technical field of building water-proof and waterproof materials, and in particular relates to a non-asphalt polymer self-adhesive water-stop applied to construction joints, deformation joints and settlement joints in water conservancy and hydropower, tunnel subways, civil air defense fortifications, underground buildings and other projects Tape and its preparation process. Background technique [0002] The self-adhesive waterstop currently used is a structure with a hollow hole in the middle of the section, a fishtail shape at both wing ends, and small ribs uniformly distributed from the middle hole to the different ends. The self-adhesive layer uses butyl putty and modified asphalt adhesive. See Table 1 and Table 2 for the main performance indicators of the waterstop with butyl putty and modified asphalt adhesive as the self-adhesive layer material. [0003] [0004] Because the components of butyl putty and modifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/16E21D11/38E02D29/16C09J7/02C09J153/02C09J11/04C09J11/06B29D29/00
Inventor 金家康郭勇邓乃伏宫小能李鑫王红续杜志萍陈少静刘兴达王庆培肖英军胡秋红石新英
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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