A kind of pre-laid polymer waterproof membrane and preparation method thereof

A technology of polymer waterproofing and coiled materials, which is applied in the direction of earthwork drilling, shaft equipment, mining equipment, etc., can solve the problems of easy aging and poor weather resistance, achieve the effect of enhancing full stickiness, reduce the use rate of sand, and improve the environment the protective effect of

Active Publication Date: 2022-05-20
渭南科顺新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of poor weather resistance and easy aging of the pre-laid polymer waterproof membrane existing in the prior art

Method used

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  • A kind of pre-laid polymer waterproof membrane and preparation method thereof
  • A kind of pre-laid polymer waterproof membrane and preparation method thereof
  • A kind of pre-laid polymer waterproof membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0051] The present invention has no special requirements on the preparation method of the water-based fluorocarbon coating, and can be prepared by using existing methods. Exemplarily, the present invention provides a particularly preferred preparation method of the water-based fluorocarbon coating. The method includes the following steps:

[0052] (1) water and thickener are mixed for the first time to obtain the first mixture;

[0053] (II) performing a second mixture of the first mixture and a pH regulator to obtain a second mixture;

[0054] (III) mixing the second mixture, tertiary fluorine emulsion, filler and defoamer for the third time to obtain the third mixture;

[0055] (IV) performing a fourth mixing of the third mixture with a dispersant.

[0056] According to a particularly preferred embodiment, in step (I), the conditions for the first mixing at least meet: a stirring speed of 100-200 rpm, a temperature of 5-35° C., and a time of 5-10 min.

[0057] According to...

preparation example 1

[0085] This preparation example is used to illustrate that the water-based fluorocarbon coating according to the present invention is prepared according to the formula and process parameters in Table 1, and the water-based fluorocarbon coating is prepared as follows.

[0086] The method for preparing the waterborne fluorocarbon coating may further comprise the steps:

[0087] (1) Stir the water and the thickener at 150 rpm for 8 minutes at normal temperature to obtain the first mixture;

[0088] (2) Stir the first mixture obtained above and the pH regulator at 150 rpm for 8 minutes at normal temperature to obtain the second mixture;

[0089] (3) Stir the second mixture, tertiary fluorine emulsion, filler and defoamer obtained above at 800 rpm for 15 minutes at room temperature to obtain a third mixture;

[0090] (4) At room temperature, the third mixture obtained above and the dispersant were stirred at 800 rpm for 15 minutes to obtain the water-based fluorocarbon coating S1....

Embodiment 1

[0096] This example provides a method for preparing a pre-laid polymer waterproof membrane, using low-pressure polyethylene as a carrier, scraping hot-melt pressure-sensitive adhesive on the carrier to form an adhesive layer, and spraying the adhesive layer prepared in Preparation Example 1 on the adhesive layer Water-based fluorocarbon coating forms a protective layer, and then bakes at 100°C for 3 minutes to cure the protective layer to obtain a pre-laid polymer waterproof membrane A1;

[0097] Wherein, the thickness ratio of the carrier, the adhesive layer, and the protective layer is 1:0.3:0.12; the thickness of the protective layer is 1.2 mm.

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Abstract

The invention relates to the technical field of building waterproofing, and discloses a pre-laid polymer waterproofing coiled material and a preparation method thereof. The pre-laid polymer waterproof roll material includes a carrier, an adhesive layer loaded on the carrier, and a protective layer loaded on the adhesive layer; the thickness ratio of the carrier, the adhesive layer, and the protective layer is 1 : 0.3-0.35: 0.05-0.20; the protective layer is a water-based fluorocarbon coating, and the water-based fluorocarbon coating contains two or more of the following components of tertiary fluorine emulsion, water, filler, pH Regulator, defoamer, thickener, dispersant. The weather resistance and anti-aging properties of the pre-laid polymer waterproof membrane provided by the invention are significantly improved.

Description

technical field [0001] The invention relates to the technical field of building waterproofing, in particular to a pre-laid polymer waterproofing coiled material and a preparation method thereof. Background technique [0002] Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc., to resist external rainwater and groundwater leakage, a flexible building material product that can be rolled into rolls, as an engineering basis Realizing the non-seepage connection between buildings is the first barrier for the waterproofing of the whole project and plays a vital role in the whole project. [0003] Existing pre-laid waterproof rolls generally include a substrate layer, an adhesive layer on the substrate layer and a sand release layer on the adhesive layer. This type of product is mainly isolated by sand covering, which can be cured together with the cast-in-place concrete through chemical cross-linking reaction and physical mortise and tenon ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/40C09J7/24C09D5/20C09D131/00C09D7/61E04B1/66E04D5/10E02D31/02E21D11/38
CPCC09J7/401C09J7/243C09J7/241C09D5/20C09D131/00C09D7/61E04B1/66E04D5/10E02D31/02E21D11/38C09J2301/122C09J2301/302C09J2301/304C09J2423/046C09J2423/006C09J2423/166C09J2433/00C09J2423/00C09J2431/005C08K2003/265C09J2203/346C08K3/34C08K3/26
Inventor 胡伟华龚兴宇杨小育刘勤
Owner 渭南科顺新型材料有限公司
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