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Non-curable polyurethane grouting material and preparation method thereof

A grouting material, polyurethane technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of reducing waterproof plugging effect, weak self-healing performance, secondary leakage, etc., and achieve good creep and self-healing. The effect of bonding ability, good cohesion and low viscosity

Active Publication Date: 2019-05-14
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Polyurethane grouting materials have been widely used in the anti-seepage and plugging industry of construction projects. However, when polyurethane materials are used in deformation joints and other parts, if the gaps are deformed to a large extent in the later stage, the polyurethane materials are subject to stress due to their high body strength. Cause cracks between the material and the base material or the material body, and the self-healing performance is weak, which is easy to cause secondary leakage and reduce the effect of waterproof and plugging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a non-curing polyurethane grouting material, which consists of two components, A and B, in parts by weight:

[0038] Component A is 35 parts of polyether trihydric alcohol (Blue Star Dongda MN-500), 44.6 parts of polyethylene glycol monomethyl ether (Haian Petrochemical MPEG-500), 20 parts of plasticizer (Exec SenMobil DINP), 0.2 part of catalyst (American Gas Chemical T-12), 0.2 part of defoamer (Byk Chemical BYK-088) is a mixture made by mixing the raw materials evenly;

[0039] Component B is a polyurethane synthesized from 50 parts of isocyanate (Yantai Wanhua MDI50), 30 parts of polyethylene glycol monomethyl ether (Haian Petrochemical MPEG-500), and 20 parts of plasticizer (ExxonMobil DINP). Prepolymer;

[0040] When used, the volume ratio of A and B components is 1:1.

[0041] Specifically include the following steps:

[0042] Preparation of component A: add 35 parts of polyether triol, 44.6 parts of polyethylene glycol monomethyl ethe...

Embodiment 2

[0046] This embodiment provides a non-curing polyurethane grouting material, which consists of two components, A and B, in parts by weight:

[0047] Component A is 35 parts of polyether triol (Bluestar Dongda MN-500), 10 parts of polyether diol (Bluestar Dongda DL-1000) and 34.6 parts of polyethylene glycol monomethanol Ether (Haian Petrochemical MPEG-500), 20 parts of plasticizer (ExxonMobil DIDP), 0.2 parts of catalyst (zinc isooctanoate), 0.2 parts of defoamer (BYK-065) are mixed as raw materials The mixture made after homogenization;

[0048] Component B is a polyurethane synthesized from 55 parts of isocyanate (Yantai Wanhua MDI50), 25 parts of polyethylene glycol monomethyl ether (Haian Petrochemical MPEG-500), and 20 parts of plasticizer (ExxonMobil DIDP) Prepolymer;

[0049] When used, the volume ratio of A and B components is 1:1.

[0050] Specifically include the following steps:

[0051] Preparation of component A: Add 35 parts of polyether triol, 10 parts of po...

Embodiment 3

[0055] This embodiment provides a non-curing polyurethane grouting material, which consists of two components, A and B, in parts by weight:

[0056] Component A is 15 parts of polyether triol (Bluestar Dongda MN-700), 20 parts of polyether diol (Bluestar Dongda DL-2000D) and 44.6 parts of polyethylene glycol monomethanol Ether (Haian Petrochemical MPEG-200), 20 parts of plasticizer (ExxonMobil DINP), 0.2 parts of catalyst (bismuth isooctanoate), 0.2 parts of defoamer (BYK-088) are mixed as raw materials The mixture made after homogenization;

[0057] Component B is a polyurethane synthesized from 55 parts of isocyanate (Yantai Wanhua MDI100), 20 parts of polyethylene glycol monomethyl ether (Haian Petrochemical MPEG-750), and 25 parts of plasticizer (ExxonMobil DINP) Prepolymer;

[0058] When used, the volume ratio of A and B components is 1:1.

[0059] Specifically include the following steps:

[0060] Preparation of component A: Add 15 parts of polyether triol, 20 parts ...

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PUM

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Abstract

The invention discloses a non-curable polyurethane grouting material and a preparation method thereof. The non-curable polyurethane grouting material comprises a component A and a component B, whereinthe component A comprises, by weight, 30-45 parts of polyether polyol, 30-50 parts of methoxy polyethylene glycol, 15-25 parts of plasticizers, 0-1 part of catalysts and 0-1 part of defoaming agents,the component B comprises, by weight, 50-60 parts of isocyanate, 18-30 parts of methoxy polyethylene glycol and 20-30 parts of plasticizers, and the unit part by weight of the component A is as sameas that of the component B. The non-curable polyurethane grouting material is low in viscosity, never be cured and good in adhesive property with base materials, has good creep properties and self-healing capacity and strong competitive advantages in market, is applicable to sealing treatment of various cracks and joints of building structures and particularly applicable to seepage prevention andleaking stoppage of deformation joints and the like with large deformation positions, and meets the increasingly high requirements of the market for products.

Description

technical field [0001] The invention belongs to the technical field of grouting materials, and more specifically relates to a non-curing polyurethane grouting material and a preparation method thereof. Background technique [0002] Non-curable rubber modified asphalt coating for waterproofing is a waterproof coating that is made of rubber and asphalt as the main components and mixed with additives to maintain a viscous paste within the service life. It has a prominent effect on the waterproof treatment of special parts such as deformation joints in construction projects, and is widely used in non-exposed building waterproof projects. [0003] The non-curing rubber asphalt waterproof material can maintain a viscous paste for a long time under the application state. The material has creep property and strong self-healing ability. The creep property will deform with the deformation of the structure and will not form secondary seepage leak. However, the viscosity of non-cured ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/76C08G18/79C09K3/12
Inventor 王新锋郑先军段文锋于成文
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD