Super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt and manufacturing method thereof

A chemically reactive, self-adhesive rubber technology, used in polymer adhesive additives, non-polymer adhesive additives, adhesives, etc. Water-stopping effect, improving cohesion, and enhancing the effect of cohesion

Active Publication Date: 2019-01-25
河北省同创交通工程配套产品产业技术研究院 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These materials mainly contain small molecular substances, oils, etc., and the bonding force with concrete comes from the van der Waals force or secondary bonds such as hydrogen bonds between the self-adhesive layer and the concrete surface. increase, the adhesive force will decrease, and eventually there will still be water leakage and water channeling problems, and the water-proof and waterproof effect will be lost

Method used

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  • Super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt and manufacturing method thereof
  • Super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt and manufacturing method thereof

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preparation example Construction

[0059] The present invention provides a preparation method of the super-strong chemical reaction type polymer self-adhesive rubber waterstop provided by the above scheme, including:

[0060] (1) first mixing and melting the softening oil, tackifying resin, antioxidant and filler to obtain the primary mixed melt;

[0061] Carrying out the second mixing and melting of the primary mixed molten material with maleic anhydride grafted SEBS and N-hexadecylpropylenediamine diammonium chloride to obtain a melted rubber mixture;

[0062] Mix and stir the melted mixture at 160-200°C for 1.5-4.5 hours to obtain self-adhesive;

[0063] (2) masticating the diene rubber, and then performing one-stage mixing of the masticated diene rubber with an active agent, an anti-aging agent, a reinforcing agent, an operating oil, and a functional filler to obtain a masterbatch;

[0064] After performing two-stage mixing of the masterbatch and the vulcanization system, the next step is performed to obta...

Embodiment 1

[0083] Preparation of self-adhesive:

[0084] (1) Add 5 parts of naphthenic oil KN4010, 30 parts of C5 petroleum resin, 2 parts of rutile titanium dioxide, and 0.2 parts of antioxidant 1010 into the reaction kettle, start heating, control the temperature at 170 ° C, and start the stirrer at the same time; ( 2) After all the above materials are melted, add 35 parts of SIS, 5 parts of maleic anhydride grafted SEBS and 0.1 part of N-hexadecylpropylenediamine bisammonium chloride, and keep the temperature at 170°C for mixing and melting; ( 3) After all the materials are melted, keep warm at 160°C and continue to stir for 1.5 hours to form a self-adhesive glue for super-strong chemical reaction polymer self-adhesive rubber waterstop.

[0085] Extrusion process of rubber substrate:

[0086] (1) Pretreatment of hydrotalcite: calcining the hydrotalcite raw material at a high temperature of 450° C. for 20 minutes.

[0087] (2) Add natural rubber into the internal mixer, and masticate...

Embodiment 2

[0095] Preparation of self-adhesive:

[0096] (1) Add 20 parts of naphthenic oil KN4010, 60 parts of C5 petroleum resin, 5 parts of nano-calcium powder, and 1 part of antioxidant 168 into the reaction kettle, start heating, control the temperature at 170 ° C, and start the stirrer at the same time; (2 ) After the above materials are all melted, add 60 parts of SIS, 15 parts of maleic anhydride grafted SEBS and 5 parts of N-hexadecylpropylenediamine bisammonium chloride, and keep the temperature at 190°C for mixing and melting; (3 ) After all the materials are melted, keep warm at 160-200°C and continue to stir for 4.5 hours to form a self-adhesive for super-strong chemical reaction polymer self-adhesive rubber waterstop.

[0097] Extrusion process of rubber substrate:

[0098] (1) Pretreatment of hydrotalcite: Calcining the montmorillonite for 80 minutes at a high temperature of 450°C.

[0099] (2) Add natural rubber into the internal mixer, and masticate for 5 minutes at an...

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Abstract

The invention belongs to the technical field of building waterproof materials, and particularly relates to a super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt anda manufacturing method thereof. The super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt comprises a rubber base material and self-adhesive coated on the surface ofthe rubber base material; the rubber base material comprises diene rubber, an active agent, an anti-ageing agent, a reinforcing agent, operation oil, functional filler and a vulcanization system; thefunctional filler comprises montmorillonoid and / or hydrotalcite which is roasted for 20-80 minutes at a temperature of 450-600 DEG C; and the self-adhesive rubber comprises thermoplastic elastomer, softening oil, tackifying resin, an anti-oxidant, maleic anhydride grafted SEBS and N-hexadecyl propylidene diamine ammonium dichloride. The super-strong chemical reaction type high-molecular self-adhesive rubber water-stop belt provided by the invention has super-strong chemical reaction characteristics, can form excellent chemical bonding and adhering property with concrete, and bonding force isnot weakened as time is prolonged.

Description

technical field [0001] The invention belongs to the technical field of building waterproof materials, and in particular relates to a super-strong chemical reaction type polymer self-adhesive rubber waterstop and a preparation method thereof. Background technique [0002] Self-adhesive rubber waterstop is a new type of waterstop. Its structure is to add a self-adhesive layer on the base material of the ordinary rubber waterstop, through the self-adhesive layer and the rubber base material, and the self-adhesive layer It is bonded with concrete to close the seepage channel and achieve the effect of waterproofing. The self-adhesive layer is the key factor affecting the waterproofing effect of the waterstop. And because the rubber composition is complex, many of the small molecular substances will gradually migrate to the rubber surface, or even migrate to the self-adhesive layer, which will eventually lead to a decrease in the adhesion between the self-adhesive and the rubber s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/20C09J7/30C09J153/02C09J11/06C09J11/08C08L7/00C08L91/00C08K13/06C08K3/26C08K3/22C08K5/09C08K3/34
CPCC08K2003/2296C08L7/00C08L2205/035C08L2207/04C09J7/20C09J7/30C09J11/06C09J11/08C09J153/02C09J2301/124C08L57/02C08L51/003C08K3/22C08K5/19C08L91/00C08K13/06C08K3/26C08K5/09C08K3/346
Inventor 陈少静岳迎九谭永杰金家康谢君泰刘名君郭勇吴延伟仝强
Owner 河北省同创交通工程配套产品产业技术研究院
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