CN110816005A - Production process of composite multilayer geomembrane - Google Patents

Production process of composite multilayer geomembrane Download PDF

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Publication number
CN110816005A
CN110816005A CN201911260233.4A CN201911260233A CN110816005A CN 110816005 A CN110816005 A CN 110816005A CN 201911260233 A CN201911260233 A CN 201911260233A CN 110816005 A CN110816005 A CN 110816005A
Authority
CN
China
Prior art keywords
puncture
proof layer
layer
waterproof
composite multilayer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911260233.4A
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Chinese (zh)
Inventor
何勇
何仕聪
何仕英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YINGFAN ENGINEERING MATERIAL Co Ltd
Original Assignee
SHANGHAI YINGFAN ENGINEERING MATERIAL Co Ltd
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Publication date
Application filed by SHANGHAI YINGFAN ENGINEERING MATERIAL Co Ltd filed Critical SHANGHAI YINGFAN ENGINEERING MATERIAL Co Ltd
Priority to CN201911260233.4A priority Critical patent/CN110816005A/en
Publication of CN110816005A publication Critical patent/CN110816005A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof

Abstract

The invention discloses a production process of a composite multilayer geomembrane, which comprises the following steps: the first anti-prick layer is processed to realize the fixation of the first adhesive tape on the bottom surface of the first anti-prick layer; the second anti-prick layer is processed to realize the fixation of the second adhesive tape on the top surface of the second anti-prick layer; processing the waterproof layer to obtain a wavy waterproof layer; and (4) performing composite processing, namely compositing the first puncture-proof layer with the first adhesive tape fixed on the bottom surface on the upper surface of the waterproof layer to obtain the composite multilayer geomembrane. The production process of the composite multilayer geomembrane has the advantages of simple and convenient operation and low production cost, and the obtained composite multilayer geomembrane has the advantages that the stretching resistance and the puncture-resistant effect are enhanced through the first puncture-resistant layer and the second puncture-resistant layer, the structural stability of the waterproof layer is improved, the composite multilayer geomembrane is not easy to damage, and the anti-seepage effect is ensured.

Description

Production process of composite multilayer geomembrane
Technical Field
The invention relates to the technical field of geomembrane production, in particular to a production process of a composite multilayer geomembrane.
Background
The geomembrane is based on a waterproof plastic film, and is widely applied to the fields of landfill, dam seepage prevention, subway construction and the like by separating water seepage and water leakage channels through impermeability, so that the structural stability of infrastructure construction is greatly improved.
Waterproof plastic film's structural strength is low, and stretch-proofing performance is poor, and easy tensile is excessive and damaged, can adopt the non-woven fabrics to carry out the structure enhancement usually, utilizes the tensile strength and the extensibility of non-woven fabrics, and the non-woven fabrics combines the back with waterproof plastic film, has increased waterproof plastic film's tensile strength and puncture resistance ability. In actual use, the nonwoven fabric can maintain stability within a certain range without breaking during being stretched, but the waterproof plastic film is damaged and leaks water during the synchronous stretching process, and improvement is needed.
Disclosure of Invention
The invention aims to provide a production process of a composite multilayer geomembrane, which improves the integral extensibility and ensures the anti-seepage effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of a composite multilayer geomembrane comprises the following steps:
processing the first puncture-proof layer, namely unreeling the coiled first puncture-proof layer, and then placing first adhesive tapes at intervals on the bottom surface of the first puncture-proof layer to realize the fixation of the first adhesive tapes on the bottom surface of the first puncture-proof layer;
processing a second puncture-proof layer, namely unreeling the coiled second puncture-proof layer, and then placing second adhesive tapes on the top surface of the second puncture-proof layer at intervals to realize the fixation of the second adhesive tapes on the top surface of the second puncture-proof layer;
processing a waterproof layer, namely unreeling the waterproof layer and attaching the waterproof layer to the top surface of a second puncture-proof layer fixed with a second adhesive tape, so that the top surface of the second puncture-proof layer and the second adhesive tape are covered, and obtaining the wavy waterproof layer;
and (3) performing composite processing, namely compositing the first puncture-proof layer with the first adhesive tape fixed on the bottom surface on the upper surface of the waterproof layer, wherein the first adhesive tape and the second adhesive tape are distributed in a staggered manner, and compositing the first puncture-proof layer, the waterproof layer and the second puncture-proof layer to obtain the composite multilayer geomembrane.
Wherein, the first stab-resistant layer and the second stab-resistant layer are respectively non-woven fabrics.
Wherein, the waterproof layer is a low-density polyethylene plastic film or a high-density polyethylene plastic film.
The first adhesive tapes extend along the width direction of the first puncture-proof layer and are distributed at intervals along the length direction on the bottom surface of the first puncture-proof layer, the second adhesive tapes extend along the width direction of the second puncture-proof layer and are distributed at intervals along the length direction on the second puncture-proof layer, and the first adhesive tapes and the second adhesive tapes are distributed in the composite multilayer geomembrane at intervals in a staggered manner.
The first adhesive tape is fixed to the bottom surface of the first puncture-proof layer through waterproof adhesive, the second adhesive tape is fixed to the top surface of the second puncture-proof layer through waterproof adhesive, and the top surface and the bottom surface of the waterproof layer are respectively coated with waterproof adhesive to be fixedly connected with the first puncture-proof layer and the second puncture-proof layer.
The first adhesive tape and the second adhesive tape are hollow resin strips respectively.
The invention has the beneficial effects that: the production process of the composite multilayer geomembrane is simple and convenient to operate and low in production cost, the obtained composite multilayer geomembrane is reinforced in stretch-resistant and puncture-resistant effects through the first puncture-resistant layer and the second puncture-resistant layer, and when the first puncture-resistant layer and the second puncture-resistant layer are stretched and passively extend, the composite multilayer geomembrane is gradually extended by the aid of the wavy waterproof layer, structural stability of the waterproof layer is guaranteed, and the composite multilayer geomembrane is not easy to damage and guarantees the seepage-resistant effect.
Drawings
Fig. 1 is a schematic structural view of the composite multilayer geomembrane obtained in the present invention.
Detailed Description
The technical solution of the present invention is further described by the specific embodiment with reference to fig. 1.
A production process of a composite multilayer geomembrane comprises the following steps:
the method comprises the following steps of processing a first puncture-proof layer 1, namely unreeling the coiled first puncture-proof layer 1, then placing first adhesive tapes 3 at intervals on the bottom surface of the first puncture-proof layer 1, and coating waterproof adhesive on the first adhesive tapes 3 to fix the first adhesive tapes 3 on the bottom surface of the first puncture-proof layer 1, wherein the first adhesive tapes 3 extend along the width direction of the first puncture-proof layer 1 and are distributed at intervals along the length direction on the bottom surface of the first puncture-proof layer 1, so that the stretching-resistant effect of the first puncture-proof layer 1 in the width direction is improved;
processing a second puncture-proof layer 2, namely unreeling the coiled second puncture-proof layer 2, wherein the first puncture-proof layer 1 and the second puncture-proof layer 2 are respectively made of non-woven fabrics, the stretch resistance and puncture-proof effect are enhanced, then placing second adhesive tapes 5 on the top surface of the second puncture-proof layer 2 at intervals, fixing the second adhesive tapes 5 on the top surface of the second puncture-proof layer 2 by coating waterproof adhesive on the second adhesive tapes 5, wherein the second adhesive tapes 5 extend along the width direction of the second puncture-proof layer 2 and are distributed on the second puncture-proof layer 2 at intervals along the length direction, and the stretch resistance effect of the second puncture-proof layer 2 in the width direction is improved;
processing a waterproof layer 4, namely coating waterproof glue on the bottom surface of the waterproof layer 4 through a gluing roller after unreeling the waterproof layer 4, and then attaching the waterproof glue to the top surface of a second puncture-proof layer 2 fixed with a second adhesive tape 5 to cover the top surface of the second puncture-proof layer 2 and the second adhesive tape 5, wherein the wavy waterproof layer 4 is obtained due to the bulge of the second adhesive tape 5, and the waterproof layer 4 is a low-density polyethylene plastic film or a high-density polyethylene plastic film, has good waterproof performance and has certain extensibility in a low-temperature environment;
and (2) performing composite processing, namely coating waterproof glue on the top surface of the waterproof layer 4, compounding the first puncture-proof layer 1 with the first adhesive tape 3 fixed on the bottom surface on the upper surface of the waterproof layer 4, compounding the first puncture-proof layer 1, the waterproof layer 4 and the second puncture-proof layer 2 to obtain a composite multilayer geomembrane, and setting the distance between the first adhesive tape 3 and the second adhesive tape 5 in the processing steps of the first puncture-proof layer 1 and the second puncture-proof layer 2 so that the first adhesive tape 3 and the second adhesive tape 5 are alternately distributed in the composite multilayer geomembrane.
The first adhesive tape 3 and the second adhesive tape 5 are respectively hollow resin strips, and can be compressed under stress to reduce the influence on the waterproof layer 4 when the waterproof layer is stressed and unfolded. When the first puncture-proof layer 1 and the second puncture-proof layer 2 are stretched and passively extend, the corrugated waterproof layer 4 is utilized to gradually extend, the structural stability of the waterproof layer 4 is ensured, the leakage problem is reduced, the composite production is simple and convenient to operate, the cost is low, and the production efficiency is high.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (6)

1. The production process of the composite multilayer geomembrane is characterized by comprising the following steps of:
processing the first puncture-proof layer, namely unreeling the coiled first puncture-proof layer, and then placing first adhesive tapes at intervals on the bottom surface of the first puncture-proof layer to realize the fixation of the first adhesive tapes on the bottom surface of the first puncture-proof layer;
processing a second puncture-proof layer, namely unreeling the coiled second puncture-proof layer, and then placing second adhesive tapes on the top surface of the second puncture-proof layer at intervals to realize the fixation of the second adhesive tapes on the top surface of the second puncture-proof layer;
processing a waterproof layer, namely unreeling the waterproof layer and attaching the waterproof layer to the top surface of a second puncture-proof layer fixed with a second adhesive tape, so that the top surface of the second puncture-proof layer and the second adhesive tape are covered, and obtaining the wavy waterproof layer;
and (3) performing composite processing, namely compositing the first puncture-proof layer with the first adhesive tape fixed on the bottom surface on the upper surface of the waterproof layer, wherein the first adhesive tape and the second adhesive tape are distributed in a staggered manner, and compositing the first puncture-proof layer, the waterproof layer and the second puncture-proof layer to obtain the composite multilayer geomembrane.
2. The process for producing a composite multilayer geomembrane according to claim 1, wherein the first and second puncture prevention layers are respectively a nonwoven fabric.
3. The process for producing a composite multilayer geomembrane according to claim 1, wherein the waterproof layer is a low density polyethylene plastic film or a high density polyethylene plastic film.
4. The production process of the composite multilayer geomembrane according to claim 1, wherein the first adhesive strips extend along the width direction of the first puncture-proof layer and are distributed at intervals along the length direction on the bottom surface of the first puncture-proof layer, the second adhesive strips extend along the width direction of the second puncture-proof layer and are distributed at intervals along the length direction on the second puncture-proof layer, and the first adhesive strips and the second adhesive strips are distributed at intervals in the composite multilayer geomembrane in a staggered manner.
5. The production process of the composite multilayer geomembrane according to claim 1, wherein the first rubber strip is fixed on the bottom surface of the first puncture-proof layer by waterproof glue, the second rubber strip is fixed on the top surface of the second puncture-proof layer by waterproof glue, and the top surface and the bottom surface of the waterproof layer are respectively coated with waterproof glue to be fixedly connected with the first puncture-proof layer and the second puncture-proof layer.
6. The process for producing a composite multilayer geomembrane according to claim 1, wherein the first strip and the second strip are each a hollow resin strip.
CN201911260233.4A 2019-12-10 2019-12-10 Production process of composite multilayer geomembrane Pending CN110816005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911260233.4A CN110816005A (en) 2019-12-10 2019-12-10 Production process of composite multilayer geomembrane

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Application Number Priority Date Filing Date Title
CN201911260233.4A CN110816005A (en) 2019-12-10 2019-12-10 Production process of composite multilayer geomembrane

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CN110816005A true CN110816005A (en) 2020-02-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114407480A (en) * 2022-01-24 2022-04-29 上海乐盈纸业有限公司 Corrugated board and processing technology thereof

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN201459771U (en) * 2009-04-14 2010-05-12 河南康喜科技有限公司 Ethylene-vinyl acetate copolymer composite impermeable membrane
CN206812530U (en) * 2017-04-05 2017-12-29 浙江潮源新型建材股份有限公司 Asphaltic base wet-laying waterproof roll
CN109159521A (en) * 2018-08-14 2019-01-08 深圳市心版图科技有限公司 A kind of high-strength fire-retarding elastic fabric and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201459771U (en) * 2009-04-14 2010-05-12 河南康喜科技有限公司 Ethylene-vinyl acetate copolymer composite impermeable membrane
CN206812530U (en) * 2017-04-05 2017-12-29 浙江潮源新型建材股份有限公司 Asphaltic base wet-laying waterproof roll
CN109159521A (en) * 2018-08-14 2019-01-08 深圳市心版图科技有限公司 A kind of high-strength fire-retarding elastic fabric and preparation method thereof

Non-Patent Citations (1)

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114407480A (en) * 2022-01-24 2022-04-29 上海乐盈纸业有限公司 Corrugated board and processing technology thereof
CN114407480B (en) * 2022-01-24 2024-02-09 上海乐盈纸业有限公司 Corrugated board and processing technology thereof

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Application publication date: 20200221