Water swellable waterproof membrane and preparation method thereof

A water-swelling, waterproof membrane technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, lamination devices, etc., can solve the problems of easy loss, difficult transportation, easy puncture of waterproof materials, etc., and achieve simple construction Effect

Inactive Publication Date: 2011-06-15
衡水大众橡塑有限公司
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Waterproof materials originated from linoleum in Europe after World War II in the 1940s. In the 1960s, my country began to produce and apply linoleum, and it was almost the only waterproof material for a long period of time. However, linoleum has poor waterproof performance and short life. , is a very unsatisfactory waterproof material
In the 1980s, polyethylene polypropylene fiber waterproof membrane appeared, the waterproof performance was slightly enhanced, and the service life was slightly increased, but the effect was still unsatisfactory.
However, the material has disadvantages such as difficult transportation, easy loss, and cumbersome seams.
Many waterproof materials are easy to be punctured and perforated during the construction process, and lose their waterproof effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water swellable waterproof membrane and preparation method thereof
  • Water swellable waterproof membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The first step is to prepare the reinforced lining

[0032] First prepare a coating made of polyurea, and spray the coating evenly on the interlining cloth with a specification of 60 g / m2 woven from polyester threads to form an anti-leakage coating with a thickness of about 0.01 mm, and dry it for later use;

[0033] The second step is to prepare self-adhesive sheet

[0034] First, take 5 parts by weight of natural rubber, 10 parts by weight of water-soluble polyurethane prepolymer and 80 parts by weight of natural sodium bentonite, 1 part by weight of white wax oil as softener, 1 part by weight of petroleum Resin as a thickener and 1 weight part of magnesium hydroxide as a functional filler composed of a flame retardant and 0.5 weight part of anti-aging agent D are sequentially added to the internal mixer, mixed at 140 ° C for 15 minutes, and then filtered Machine filter glue; Then, join filter glue in the screw extruder that has been preheated and be extruded into th...

Embodiment 2

[0039] The first step is to prepare the reinforced lining

[0040] First prepare a paint made of polyurethane, and spray the paint evenly on the interlining cloth with a specification of 150 grams per square meter woven by polypropylene threads to form an anti-leakage coating with a thickness of 0.010-0.015 mm, and dry it for later use;

[0041] The second step is to prepare self-adhesive sheet

[0042] First, get 25 parts by weight of butyl rubber, 5 parts by weight of water-soluble polyurethane prepolymer and 70 parts by weight of calcium-based bentonite, 1.5 parts by weight of pine tar as softener, 1.5 parts by weight of rosin Thickener and 0.5 parts by weight of aluminum hydroxide are used as functional fillers composed of flame retardants and 2.0 parts by weight of anti-aging agent 4010A, sequentially added to the internal mixer, mixed at 80 ° C for 25 minutes, and then used in a rubber filter Filter glue; Then, join the filter glue into the preheated screw extruder and ...

Embodiment 3

[0047] The first step is to prepare the reinforced lining

[0048] First prepare a paint made of acrylic ester, and spray the paint evenly on the interlining cloth with a specification of 200 g / m2 woven by aramid fibers to form an anti-leakage coating with a thickness of 0.015-0.025 mm, and dry it for later use;

[0049] The second step is to prepare self-adhesive sheet

[0050] First, take 20 parts by weight of nitrile rubber, 20 parts by weight of sodium acrylate polymer water-absorbing resin and 30 parts by weight of sodium bentonite, 0.5 parts by weight of naphthenic oil as softener, 1.5 parts by weight of Rosin as a thickener and 1.5 parts by weight of hexabromocyclododecane as a functional filler composed of a flame retardant and 1.5 parts by weight of anti-aging agent D are sequentially added to the internal mixer, and after mixing at 130 ° C for 20 minutes Use a rubber filter machine to filter the glue; then, add the filter glue to a preheated screw extruder to extrude ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of waterproof materials, in particular relates to a water swellable waterproof membrane and a preparation method thereof. The main technical scheme is as follows: a water swellable self-adhesive sheet layer made of natural or synthetic rubber, super absorbent polymers, inorganic water-absorbent materials and functional fillings is covered on one surface of lining cloth which is knitted from terylene, polypropylene fibers, aramid fibers or glass fibers and plays a role of strengthening, a coating playing a role of preventing seepage is covered on the other surface of the lining cloth, an insulating membrane layer is arranged on the water swellable self-adhesive sheet layer, and then the water swellable waterproof membrane, which can be widely used in underground waterproof and anti-seepage construction fields of roads, railways, refuse landfills, water projects and industrial and civil buildings, can be prepared through the processes of compounding, cutting, checking, packaging and the like. The water swellable waterproof membrane has the advantages of excellent anti-seepage effect, environment protection and long service life.

Description

technical field [0001] The invention belongs to the technical field of waterproof materials, and specifically discloses a water-swellable waterproof membrane used in underground waterproof and anti-seepage construction sites of roads, railways, landfills, water conservancy projects, industrial and civil buildings and a preparation method thereof. Background technique [0002] Waterproof materials originated from linoleum in Europe after World War II in the 1940s. In the 1960s, my country began to produce and apply linoleum, and it was almost the only waterproof material for a long period of time. However, linoleum has poor waterproof performance and short life. , is a very unsatisfactory waterproof material. In the 1980s, polyethylene polypropylene fiber waterproof membrane appeared, the waterproof performance was slightly enhanced, and the service life was slightly increased, but the effect was still unsatisfactory. In the late 1980s and early 1990s, my country began to int...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B32B37/00B32B9/04B32B33/00B32B27/12
Inventor 张广强
Owner 衡水大众橡塑有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap