CN111038057A - 一种盐碱地土壤修复用多层复合土工膜及其制备方法 - Google Patents

一种盐碱地土壤修复用多层复合土工膜及其制备方法 Download PDF

Info

Publication number
CN111038057A
CN111038057A CN201911409104.7A CN201911409104A CN111038057A CN 111038057 A CN111038057 A CN 111038057A CN 201911409104 A CN201911409104 A CN 201911409104A CN 111038057 A CN111038057 A CN 111038057A
Authority
CN
China
Prior art keywords
layer
geomembrane
saline
sodium alginate
water
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.)
Withdrawn
Application number
CN201911409104.7A
Other languages
English (en)
Inventor
王胜
江杰
刘大欣
齐志国
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.)
Shandong Sunway Saline Alkali Soil Technology Co Ltd
Weifang Yourong Industry Co Ltd
Original Assignee
Shandong Sunway Saline Alkali Soil Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Sunway Saline Alkali Soil Technology Co Ltd filed Critical Shandong Sunway Saline Alkali Soil Technology Co Ltd
Priority to CN201911409104.7A priority Critical patent/CN111038057A/zh
Publication of CN111038057A publication Critical patent/CN111038057A/zh
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/286—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysulphones; polysulfides
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • 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
    • 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
    • B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • 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
    • B32B2307/554—Wear resistance
    • 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
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2410/00—Agriculture-related articles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/08—Polyesters modified with higher fatty oils or their acids, or with resins or resin acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
    • C08J2381/06—Polysulfones; Polyethersulfones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Revetment (AREA)

Abstract

本发明公开了一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为改性聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维。本发明的土工膜在保证防腐耐候性的同时还增加了其耐磨性和耐穿刺性，可以防止土工膜下方的硬块戳破土工膜，效果更好，土工膜最上层为保水层，吸收保水的同时还可以吸收肥料、农药、并缓慢释放，增加肥效、药效；采用改性聚乙烯，大大缓解了普通的聚乙烯膜软化点低，强度不高，耐大气老化性差，易应力开裂等问题，使用周期更长，抗渗层采用聚乙烯丙纶复合材料，抗渗能力更强。

Description

一种盐碱地土壤修复用多层复合土工膜及其制备方法
技术领域
本发明涉及土工膜领域，具体涉及一种盐碱地土壤修复用多层复合土工膜及其制备方法。
背景技术
盐碱地是盐类集积的一个种类，是指土壤里面所含的盐分影响到作物的正常生长，根据联合国教科文组织和粮农组织不完全统计，全世界盐碱地的面积为9.5438亿公顷，其中我国为9913万公顷。我国碱土和碱化土壤的形成，大部分与土壤中碳酸盐的累计有关，因而碱化度普遍较高，严重的盐碱土壤地区植物几乎不能生存。
现在盐碱地的改良方法有洗盐、增施有机肥，合理施用化肥、用盐碱地专用土壤调理剂对土壤进行有效改良等，但上述改良方法修复时间长，费用高，效果见效慢；现有技术中也有用土工膜对盐碱地进行修复的，但是常用的用于土壤修复工程的土工膜大多为为高密度聚乙烯膜，这类膜具有极低渗透系数，较好柔性，给工程带来了很大的方便，但是在应用中发现其存在抗穿刺性能、耐磨性能不佳的问题，对其在盐碱地改良中的应用起到了很大的限制。
发明内容
本发明所要解决的第一个技术问题是：针对现有技术存在的不足，提供一种盐碱地土壤修复用多层复合土工膜，耐穿刺性和耐磨性好，可以更好的应用到盐碱地土壤修复中，保证耐腐性的同时大大增加了使用周期。
本发明所要解决的第二个技术问题是：针对现有技术存在的不足，提供一种盐碱地土壤修复用多层复合土工膜的制备方法，制造的土工膜在保证耐腐蚀性的同时耐磨性更好，使用寿命更长。
为解决上述第一个技术问题，本发明的技术方案是：
一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为改性聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起。
优选的，所述改进聚乙烯为氯化聚乙烯或交联聚乙烯中的一种。
优选的，所述保水层的厚度为0.8～1.2mm,所述耐候层的厚底为0.5～0.9mm，所述抗渗层的厚底为1.5～2.0mm，所述防腐层的厚底为0.6～1.0mm。
优选的，所述胶粘剂为硅丙乳液型防水织物胶黏剂。
为解决上述第二个技术问题，本发明的技术方案是：
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至25～32℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
A.将聚氨酯、聚砜和三氯甲烷在反应釜中加热至60～80℃，开启搅拌；
B.将反应釜通入氮气作为保护气，然后加入醇酸树脂和二硫化钼，继续搅拌得熔融液；
C.将所述熔融液倒入两个辊筒之间，经辊压后变成薄膜，再拉长使它更牢固得所述防腐层；
(3)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于55～75℃的环境中放置40～60min，然后在室温下放置40～46h取出，得所述盐碱地土壤修复用多层复合土工膜。
由于采用了上述技术方案，本发明的有益效果是：
本发明的一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为改性聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起。现在常用的土工膜用聚乙烯膜作为防腐耐候膜，防腐性、耐候性都领先其它的土工膜，但是此类土工膜也存在一些问题，像耐磨性和耐穿刺性不足，在土工膜铺伸的时候容易造成破损从而引起土工膜下方的盐碱成分进入土工膜的上层正常土壤中，从而对作物的生长造成不利影响，且大大减短了土工膜的使用周期，造成原料的浪费以及处理破损土工膜造成的环境污染，本发明的土工膜的防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，在聚氨酯中加入热固性树脂、热塑性树脂和其它的无机成分来提高其耐磨性和防腐性，相比传统的聚乙烯土工膜，机械性能更好，可以防止土工膜下方的硬块戳破土工膜，效果优良。本发明的土工膜最上层为保水层，吸收保水的同时还可以吸收肥料、农药、并缓慢释放，增加肥效、药效；耐候层采用改性聚乙烯，大大缓解了普通的聚乙烯膜软化点低，强度不高，耐大气老化性差，易应力开裂等问题，使用周期更长，抗渗层采用聚乙烯丙纶复合材料，抗渗能力更强。
具体实施方式
下面结合实施例，进一步阐述本发明。
实施例1
一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为氯化聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述保水层的厚度为0.8mm，所述耐候层的厚底为0.5mm，所述抗渗层的厚底为1.5mm，所述防腐层的厚底为0.6mm，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起，所述胶粘剂为硅丙乳液型防水织物胶黏剂。
实施例2
实施例1的所述盐碱地土壤修复用多层复合土工膜的制备方法
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至25℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
(2)所述防腐层的制备
A.将聚氨酯、聚砜和三氯甲烷在反应釜中加热至60℃，开启搅拌；
B.将反应釜通入氮气作为保护气，然后加入醇酸树脂和二硫化钼，继续搅拌得熔融液；
C.将所述熔融液倒入两个辊筒之间，经辊压后变成薄膜，再拉长使它更牢固得所述防腐层；
(3)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于55℃的环境中放置40min，然后在室温下放置40h取出，得所述盐碱地土壤修复用多层复合土工膜。
实施例3
一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为氯化聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述保水层的厚度为1.0mm，,所述耐候层的厚底为0.7mm，所述抗渗层的厚底为1.7mm，所述防腐层的厚底为0.8mm，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起，所述胶粘剂为硅丙乳液型防水织物胶黏剂。
实施例4
实施例3的所述盐碱地土壤修复用多层复合土工膜的制备方法
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至32℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
(2)所述防腐层的制备
A.将聚氨酯、聚砜和三氯甲烷在反应釜中加热至75℃，开启搅拌；
B.将反应釜通入氮气作为保护气，然后加入醇酸树脂和二硫化钼，继续搅拌得熔融液；
C.将所述熔融液倒入两个辊筒之间，经辊压后变成薄膜，再拉长使它更牢固得所述防腐层；
(3)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于60℃的环境中放置50min，然后在室温下放置42h取出，得所述盐碱地土壤修复用多层复合土工膜。
实施例5
一种盐碱地土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为氯化聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述保水层的厚度为1.2mm，所述耐候层的厚底为0.9mm，所述抗渗层的厚底为2.0mm，所述防腐层的厚底为1.0mm，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起，所述胶粘剂为硅丙乳液型防水织物胶黏剂。
实施例6
实施例5的所述盐碱地土壤修复用多层复合土工膜的制备方法
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至32℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
(2)所述防腐层的制备
A.将聚氨酯、聚砜和三氯甲烷在反应釜中加热至80℃，开启搅拌；
B.将反应釜通入氮气作为保护气，然后加入醇酸树脂和二硫化钼，继续搅拌得熔融液；
C.将所述熔融液倒入两个辊筒之间，经辊压后变成薄膜，再拉长使它更牢固得所述防腐层；
(3)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于75℃的环境中放置60min，然后在室温下放置46h取出，得所述盐碱地土壤修复用多层复合土工膜。
对比例1
一种土壤修复用多层复合土工膜，从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚乙烯，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为氯化聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述保水层的厚度为1.2mm，所述耐候层的厚底为0.5mm，所述抗渗层的厚底为1.5mm，所述防腐层的厚底为0.6mm，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起，所述胶粘剂为硅丙乳液型防水织物胶黏剂。
对比例2
对比例1的土壤修复用多层复合土工膜的制备方法
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至32℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
(2)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于75℃的环境中放置60min，然后在室温下放置46h取出，得所述盐碱地土壤修复用多层复合土工膜。
将实施例1、3、5和对比例1制备的多层复合土工膜进行性能测试，测试方法和结果见表1，其中耐腐蚀性检测的方法是将多层复合土工膜用PH为8.5的碱浸泡48h，然后检测其拉伸屈服强度；耐磨性测试则是对多层复合土工膜进行同样的人工打磨后在自然光或者40w日光灯下，沿与试样45°方向观察试样表面，根据磨损程度大小依次评定为S0-S5级。
表1本发明的除草剂对盐碱地棉花种植的防治作用
Figure BDA0002349482280000071
Figure BDA0002349482280000081
通过表格1可以看出，相对于传统的高密度聚乙烯作为最外层的防腐耐候层，本发明的多层复合土工膜耐磨性更好，可以更好的防止土壤中的硬块对土工膜的磨损以及钩刮，避免对土工膜造成破坏导致盐碱地中的不利成分对植物生长造成影响，同时本发明的多层复合土工膜在机械性能和耐腐性上都有明显的改进。
应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。

Claims (5)

1.一种盐碱地土壤修复用多层复合土工膜，其特征在于：从下到上依次包括防腐层、抗渗层、耐候层和保水层，所述防腐层为聚氨酯、聚砜、醇酸树脂和二硫化钼的混合层，所述抗渗层为聚乙烯丙纶复合材料，所述耐候层为改性聚乙烯，所述保水层为海藻酸钠/聚丙烯酰胺凝胶纤维，所述防腐层、抗渗层、耐候层和保水层之间通过胶粘剂粘结在一起。
2.如权利要求1所述的一种盐碱地土壤修复用多层复合土工膜，其特征在于：所述改性聚乙烯为氯化聚乙烯或交联聚乙烯中的一种。
3.如权利要求1所述的一种盐碱地土壤修复用多层复合土工膜，其特征在于:所述保水层的厚度为0.8～1.2mm,所述耐候层的厚底为0.5～0.9mm，所述抗渗层的厚底为1.5～2.0mm，所述防腐层的厚底为0.6～1.0mm。
4.如权利要求1所述的一种盐碱地土壤修复用多层复合土工膜，其特征在于：所述胶粘剂为硅丙乳液型防水织物胶黏剂。
5.如权利要求1所述的一种盐碱地土壤修复用多层复合土工膜的制备方法，其特征在于：
(1)所述保水层的制备
A.将30g海藻酸钠粉末溶解在1000ml去离子水中,形成海藻酸钠溶液；
B.向上述海藻酸钠溶液中加入30g丙烯酰胺单体，搅拌均匀形成混合溶液；
C.将上述混合溶液加热至25～32℃，然后加入30mgN,N-亚甲基二丙烯酰胺交联剂、22mg过氧化苯甲酰引发剂和50mg过硫酸铵催化剂，反应12h，然后通过喷丝头喷到纺丝甬道中固化，得到海藻酸钠/聚丙烯酰胺凝胶纤维；
D.所述若干海藻酸钠/聚丙烯酰胺凝胶纤维交织在一起形成所述保水层；
(2)所述防腐层的制备
A.将聚氨酯、聚砜和三氯甲烷在反应釜中加热至60～80℃，开启搅拌；
B.将反应釜通入氮气作为保护气，然后加入醇酸树脂和二硫化钼，继续搅拌得熔融液；
C.将所述熔融液倒入两个辊筒之间，经辊压后变成薄膜，再拉长使它更牢固得所述防腐层；
(3)成膜
A.将所述胶粘剂均匀涂抹在防腐层、抗渗层、耐候层和保水层的接触面，通过挤压设备进行压制，并于55～75℃的环境中放置40～60min，然后在室温下放置40～46h取出，得所述盐碱地土壤修复用多层复合土工膜。
CN201911409104.7A 2019-12-31 2019-12-31 一种盐碱地土壤修复用多层复合土工膜及其制备方法 Withdrawn CN111038057A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911409104.7A CN111038057A (zh) 2019-12-31 2019-12-31 一种盐碱地土壤修复用多层复合土工膜及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911409104.7A CN111038057A (zh) 2019-12-31 2019-12-31 一种盐碱地土壤修复用多层复合土工膜及其制备方法

Publications (1)

Publication Number Publication Date
CN111038057A true CN111038057A (zh) 2020-04-21

Family

ID=70242502

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911409104.7A Withdrawn CN111038057A (zh) 2019-12-31 2019-12-31 一种盐碱地土壤修复用多层复合土工膜及其制备方法

Country Status (1)

Country Link
CN (1) CN111038057A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112481713A (zh) * 2020-11-10 2021-03-12 江苏索力得新材料集团有限公司 农林土壤修复治理用耐冲洗土工合成材料制备工艺
CN113388405A (zh) * 2021-06-15 2021-09-14 鲁东大学 一种双网络水凝胶在土壤保水方面的应用
CN117511556A (zh) * 2024-01-05 2024-02-06 北京助天科技集团有限公司 一种双组分土壤防渗剂及其应用

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201428145Y (zh) * 2009-06-18 2010-03-24 河南康喜科技有限公司 一种经编格栅增强复合土工膜
CN102408615A (zh) * 2010-09-21 2012-04-11 中国石油天然气股份有限公司 聚乙烯土工膜树脂组合物及其制备方法
CN203901887U (zh) * 2014-05-29 2014-10-29 陕西中盈实业有限公司 一种土工膜
CN104311841A (zh) * 2014-09-30 2015-01-28 江南大学 一种高强度共价/离子互穿网络易塑形凝胶的制备方法
CN106471049A (zh) * 2014-05-01 2017-03-01 塞特工业公司 用于稳定化材料抵抗紫外光和热降解的稳定组合物
CN109679312A (zh) * 2018-12-07 2019-04-26 歌尔股份有限公司 一种聚合物复合材料
CN109866490A (zh) * 2019-01-24 2019-06-11 鲍可可 一种用于土壤修复的多层复合土工膜及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201428145Y (zh) * 2009-06-18 2010-03-24 河南康喜科技有限公司 一种经编格栅增强复合土工膜
CN102408615A (zh) * 2010-09-21 2012-04-11 中国石油天然气股份有限公司 聚乙烯土工膜树脂组合物及其制备方法
CN106471049A (zh) * 2014-05-01 2017-03-01 塞特工业公司 用于稳定化材料抵抗紫外光和热降解的稳定组合物
CN203901887U (zh) * 2014-05-29 2014-10-29 陕西中盈实业有限公司 一种土工膜
CN104311841A (zh) * 2014-09-30 2015-01-28 江南大学 一种高强度共价/离子互穿网络易塑形凝胶的制备方法
CN109679312A (zh) * 2018-12-07 2019-04-26 歌尔股份有限公司 一种聚合物复合材料
CN109866490A (zh) * 2019-01-24 2019-06-11 鲍可可 一种用于土壤修复的多层复合土工膜及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
叶蕊: "《实用塑料加工技术》", 30 November 2000, 金盾出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112481713A (zh) * 2020-11-10 2021-03-12 江苏索力得新材料集团有限公司 农林土壤修复治理用耐冲洗土工合成材料制备工艺
CN112481713B (zh) * 2020-11-10 2022-04-08 江苏索力得新材料集团有限公司 农林土壤修复治理用耐冲洗土工合成材料制备工艺
CN113388405A (zh) * 2021-06-15 2021-09-14 鲁东大学 一种双网络水凝胶在土壤保水方面的应用
CN117511556A (zh) * 2024-01-05 2024-02-06 北京助天科技集团有限公司 一种双组分土壤防渗剂及其应用
CN117511556B (zh) * 2024-01-05 2024-05-14 北京助天科技集团有限公司 一种双组分土壤防渗剂及其应用

Similar Documents

Publication Publication Date Title
CN111038057A (zh) 一种盐碱地土壤修复用多层复合土工膜及其制备方法
CN113773765A (zh) 丁基压敏胶及应用该丁基压敏胶的预铺防水卷材
CN114467680B (zh) 矿山复绿用无土喷播基质及其制备方法
CN108752130B8 (zh) 一种用于边坡绿化生态修复的植生土保水剂及制备方法
EP2351802A1 (en) Water-based impermeabilization composition for coating diverse substrates
CN111716840A (zh) 双重阻根的高耐候耐根穿刺丁基橡胶自粘防水卷材及其应用
CN114015075B (zh) 一种基于纤维素自组装调控的强韧、透明水凝胶的制备方法
CN110938416B (zh) 调剖剂及其制备方法和应用
CN113150317A (zh) 一种超强韧抗冻聚乙烯醇水凝胶及其制备方法
CN106675409A (zh) 耐盐碱耐根穿刺改性沥青涂盖料及制造方法、防水卷材及制造方法
CN116058254A (zh) 一种基于岩质边坡防护的生态基材及其制备方法
CN109971484B (zh) 一种高分子固沙剂
CN110574520A (zh) 一种化学生物改良与种植耐盐植物相结合改良盐碱地的方法
CN107814888B (zh) 一种煤基聚合物水凝胶及其制备方法
WO2024087525A1 (zh) 一种高耐久性耐穿刺高分子防水卷材及其制备方法
CN109454956B (zh) 一种自粘防水卷材及其制备方法
WO2004094081A3 (en) Polymeric stabilization composition and method
CN112375322B (zh) 一种剥离强度高的防水卷材胶料、制备方法及防水卷材
CN214361043U (zh) 一种混凝土断根防腐用复合涂层结构
CN100467568C (zh) 一种新型高分子固沙剂及其制备方法
CN106423099B (zh) 一种黄麻/聚合物凝胶的制备方法及其作为重金属吸附剂的应用
CN112042322B (zh) 一种边坡喷播用纤粒剂、制备方法及喷播方法
CN208148712U (zh) 一种带保护层的hdpe自粘防水卷材
CN108485164B (zh) 一种防水高分子卷材及其制备方法
CN111452472A (zh) 一种arf金钢甲耐根穿刺防水卷材

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20200421