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CN-121973518-A - Polymer waterproof coiled material and preparation method thereof

CN121973518ACN 121973518 ACN121973518 ACN 121973518ACN-121973518-A

Abstract

The invention relates to the technical field of waterproof coiled materials, in particular to a high-molecular waterproof coiled material and a preparation method thereof. The waterproof coiled material structure prepared by the invention sequentially comprises a release film, a waterproof layer, a polymer layer, an aggregate layer, a polymer layer, a waterproof layer and a release film from outside to inside, so that the problems of poor waterproof effect and poor ageing resistance of the waterproof coiled material are solved. The main components of the polymer waterproof coiled material comprise a release film, a waterproof layer, a polymer layer and an aggregate layer. The method comprises the steps of adjusting the types of cyclic siloxane in a bone material layer and a waterproof layer, adjusting the reaction temperature and time, adding synthetic plasticizer into a high polymer layer, synthesizing polyarylsulfone, adding the polyarylsulfone into a high polymer waterproof coiled material, changing the component proportion of the raw materials of the high polymer layer, and finally modifying bentonite to be used in the waterproof layer. The prepared high-molecular waterproof coiled material has good waterproof effect and high peel strength after heat aging.

Inventors

  • WEI BEIBEI
  • XU YE
  • ZHANG YANGYANG

Assignees

  • 韦贝贝

Dates

Publication Date
20260505
Application Date
20251226

Claims (10)

  1. 1. The preparation method of the high polymer waterproof coiled material is characterized by comprising the following steps: Ring-opening reaction of cyclic siloxane for 2-7.5h to obtain hydroxyl-terminated polydimethylsiloxane, mixing 2-3.1 parts of 2-sulfoterephthalic acid, 1.5-4.0 parts of hydroxyl-terminated polydimethylsiloxane and 1.4-1.9 parts of biphenol, reacting to obtain a reactant to be reacted, dissolving 3.5-4.0 parts of hydroxyfluorene and 5.2-8.7 parts of 4,4' -difluorodiphenyl sulfone in sulfolane to obtain a mixed solution, adding the mixed solution and 2.8-5 parts of dimethyl sulfoxide into the reactant to be reacted, removing an organic solvent after reacting, and heating to 180-250 ℃ to obtain a product after reacting; melting and mixing high-density polyethylene, linear low-density polyethylene, 4-5 parts of bisphenol A epoxy resin and 1.5-2.5 parts of 4,4' -diaminodiphenyl sulfone, and reacting to obtain modified polyethylene; Mixing the product and the modified polyethylene in a part ratio of 4-9:1-3 to obtain a bone material layer; melting and mixing modified polyethylene, ethylene propylene diene monomer and thermoplastic polyolefin in a ratio of 5-7:2-4:1-2, adding hydroxide and plasticizer, stirring and extruding to obtain a high molecular layer; The product is melted and extruded, then soaked into an acrylic acid solution containing 0.1-0.3 part of 1-hydroxycyclohexyl benzophenone, and irradiated by ultraviolet to obtain a waterproof layer intermediate, 1.5-3 parts of modified bentonite is coated on one side of the waterproof layer intermediate, and the waterproof layer is obtained through hot pressing; And (3) superposing the release film, the waterproof layer, the polymer layer, the aggregate layer, the polymer layer, the waterproof layer and the release film, hot-pressing, and then cutting and rolling to obtain the polymer waterproof coiled material.
  2. 2. The preparation method of the high-molecular waterproof coiled material according to claim 1, wherein the ring-opening reaction is characterized in that the cyclic siloxane is added into a three-neck flask, the temperature is increased, a preheated potassium hydroxide aqueous solution is added into the cyclic siloxane, the mixture is stirred and reacted for 5-7.5 hours to obtain a hydroxyl-terminated polydimethylsiloxane solution, anhydrous sodium sulfate is added into the hydroxyl-terminated polydimethylsiloxane solution, the water is removed, and the filtered liquid is dried in vacuum to obtain the hydroxyl-terminated polydimethylsiloxane, wherein the cyclic siloxane is one of octamethyl cyclotetrasiloxane, dodecamethyl cyclotetrasiloxane, hexadecyl cyclooctasiloxane, octamethyl cyclononasiloxane, eicosyl cyclodecasiloxane and tetracosane.
  3. 3. The method for preparing the polymer waterproof coiled material according to claim 1, wherein the preparation method of the product is characterized by comprising the steps of adding the 2-sulfoterephthalic acid into the hydroxyl-terminated polydimethylsiloxane, adding the sulfolane into the hydroxyl-terminated polydimethylsiloxane, adding phosphoric acid into the hydroxyl-terminated polydimethylsiloxane after the sulfolane is uniformly dissolved, raising the temperature, and stirring the mixture in a reaction kettle to react to obtain a precursor to be reacted; adding the biphenol into a precursor of a reactant to be reacted, adding sulfolane, continuously stirring and reacting to obtain the reactant to be reacted, dissolving the hydroxyfluorene and the 4,4' -difluorodiphenyl sulfone into the sulfolane to obtain the mixed solution, adding the mixed solution and the dimethyl sulfoxide into the reactant to be reacted, charging nitrogen into a reaction kettle, discharging air, raising the temperature of the reaction kettle, stirring and reacting to obtain a product precursor, removing the organic solvent in the product precursor, raising the temperature to 180-210 ℃, reducing the temperature after the reaction to obtain a product intermediate, adding the product intermediate into deionized water to obtain fibrous white precipitate, repeatedly washing the fibrous white precipitate with water and absolute ethyl alcohol after crushing, and then vacuum drying to obtain the product, wherein the hydroxyfluorene is one of bisphenol fluorene, dihydroxyfluorene and 2, 7-dihydroxy-9, 9-dimethyl fluorene.
  4. 4. The preparation method of the high polymer waterproof coiled material according to claim 1, wherein the preparation method of the bone material layer is characterized by comprising the steps of adding bisphenol A epoxy resin, itaconic anhydride and 4,4 '-diaminodiphenyl sulfone into the high-density polyethylene and the linear low-density polyethylene after melting in a reaction kettle, obtaining a mixture after melting and mixing, adding 2,2' -azo-bis-isobutyronitrile and boron trifluoride complex into the mixture, adding concentrated sulfuric acid into the mixture after stirring reaction, continuing reaction, cooling and cooling to room temperature to obtain the modified polyethylene; Mixing the product with the modified polyethylene to obtain a spinning raw material, dissolving the spinning raw material in DMF (dimethyl formamide), stirring to obtain a spinning solution, carrying out electrostatic spinning on the spinning solution, weaving, and drying to obtain the aggregate layer.
  5. 5. The method for preparing the high-molecular waterproof coiled material according to claim 1, wherein the preparation method of the high-molecular layer is characterized by comprising the steps of mixing the modified polyethylene, the ethylene propylene diene monomer and the thermoplastic polyolefin in a ratio of 5-7:2-4:1-2, then carrying out eutectic melting and uniform mixing to obtain a high-molecular layer precursor, mixing the high-molecular layer precursor and the hydroxide, stirring and reacting to obtain a high-molecular layer intermediate, adding the plasticizer into the high-molecular layer intermediate, continuing stirring, and then extruding to obtain the high-molecular layer.
  6. 6. The method for producing a polymer waterproof roll as defined in claim 5, wherein the hydroxide is two of aluminum hydroxide, magnesium hydroxide and tungsten hydroxide.
  7. 7. A process for preparing the water-proof high-molecular coiled material according to claim 5, wherein 2.0-2.8 parts of linoleic acid and toluene are put in a four-neck round bottom flask, a Dean-Stark water separator is arranged at the same time, the temperature is raised, a phosphotungstic acid quaternary ammonium salt catalyst and hydrogen peroxide aqueous solution are added into the water-soluble plasticizer, reflux reaction is carried out until the epoxy value is not changed, a plasticizer precursor is obtained, 0.5-1.5 parts of 1,3, 5-tris (4-hydroxyphenyl) benzene is dissolved in the toluene to obtain 1,3, 5-tris (4-hydroxyphenyl) benzene solution, 0.3-0.5 part of itaconic anhydride and phosphoric acid are added into the plasticizer precursor, then 1,3, 5-tris (4-hydroxyphenyl) benzene solution is added into the water-soluble plasticizer, reflux reaction is carried out after the temperature is raised, then the phosphoric acid and 1.0-4.0 parts of diethyl phosphoryl triethoxysilane are added into the water-soluble plasticizer, the water is removed from the water-soluble plasticizer precursor.
  8. 8. The preparation method of the high-molecular waterproof coiled material according to claim 1, which is characterized by comprising the steps of firstly drying bentonite in a vacuum drying oven, then uniformly mixing 2-2.5 parts of nano zinc oxide and deionized water to obtain a mixture, dispersing nano cellulose crystals and glycine in the deionized water, then adding concentrated sulfuric acid, raising the temperature, stirring for reaction, filtering and drying to obtain modified nano cellulose, adding 0.3-0.5 part of the modified nano cellulose into the mixture, raising the temperature, ball milling by using a star ball mill, drying, then adding 1.5-3.6 parts of KH550, and continuing ball milling to obtain the modified bentonite.
  9. 9. The method for preparing a high polymer waterproof coiled material according to claim 8, wherein the bentonite is one of calcium bentonite and sodium bentonite, and the swelling index of the bentonite is 7.0-31.4mL/2g.
  10. 10. A high-molecular waterproof coiled material is characterized in that the high-molecular waterproof coiled material sequentially comprises a release film, a waterproof layer, a high-molecular layer, an aggregate layer, the high-molecular layer, the waterproof layer and the release film from outside to inside, and the high-molecular waterproof coiled material is prepared by the preparation method according to any one of claims 1-9.

Description

Polymer waterproof coiled material and preparation method thereof Technical Field The invention relates to the technical field of waterproof coiled materials, in particular to a high-molecular waterproof coiled material and a preparation method thereof. Background The application of the waterproof coiled material in the building construction is very important, and the choice of the waterproof coiled material determines the construction quality and the service life of the building to a certain extent. According to the difference of the used raw materials, the waterproof coiled materials are divided into asphalt waterproof coiled materials and macromolecule waterproof coiled materials. Asphalt waterproof coiled materials have long been used, wherein Rupal A,Sharma K S,Tyagi G.Experimental investigation on mechanical properties of polyurethane modified bituminous waterproofing membrane[J].Materials Today:Proceedings,2020,27(Pt 1):467-474. improves the mechanical properties of asphalt materials by adding polyurethane, but the asphalt waterproof coiled materials prepared by the invention mainly use petroleum base as raw materials, which is not beneficial to resource saving. The high polymer waterproof coiled material can be divided into a polyvinyl chloride waterproof coiled material, a thermoplastic polyolefin waterproof coiled material, an ethylene propylene diene monomer waterproof coiled material, a high-density polyethylene waterproof coiled material and the like. The PVC waterproof coiled material has good permeation resistance and good chemical stability, but chlorine contained in the PVC waterproof coiled material easily escapes at high temperature, and the generated chlorine has a harmful effect on human bodies. The thermoplastic polyolefin waterproof coiled material has small shrinkage deformation, but has poor flame retardant effect. The EPDM waterproof coiled material has good heat resistance, but with the increase of the service time, the added plasticizer migrates, and molecules are easy to crosslink and degrade, so that the mechanical property of the EPDM waterproof coiled material is reduced. The high-density polyethylene waterproof coiled material has regular molecular structure arrangement and high density, but has the problem of poor ageing resistance. The polymer waterproof coiled material mainly comprises a waterproof coiled material base layer and an adhesive layer, and has waterproof effect. Patent CN110872409a discloses a TPO waterproof coiled material, which is prepared by adding substances such as TPO particles, rubber particles, light calcium carbonate, stearic acid, titanium pigment, plasticizer and the like into the waterproof coiled material, and has the advantages of improved reversible deformation of the material, good waterproof effect and poor heat aging resistance. The patent CN109910414B discloses a high-molecular waterproof coiled material and a production process thereof, wherein the high-molecular waterproof coiled material sequentially comprises an outer waterproof layer, a base material layer, an isolating film layer and a high-molecular polyester inner layer structure from outside to inside, an ethylene-vinyl acetate copolymer is used as a base material, the heat insulation performance is improved after the ethylene-vinyl acetate copolymer is compatible with a stabilizer, heavy calcium powder, an antistatic agent and oxidation-resistant graphene, a carbon nano tube is added to load and wrap the calcium-zinc stabilizer to form the stabilizer, and the heat-resistant effect of the coiled material is improved. The waterproof coiled material is applied to building construction, can resist rainwater or underground water leakage, is convenient to construct, but has a molecular structure damaged along with the increase of the service life, and has a waterproof effect reduced. In summary, in the prior art, there are also problems of poor waterproof performance and poor aging resistance of the polymer waterproof coiled material. Therefore, a high-molecular waterproof coiled material and a preparation method thereof are provided. Disclosure of Invention The invention aims to provide a high-molecular waterproof coiled material and a preparation method thereof, wherein the high-molecular waterproof coiled material comprises a release film, a waterproof layer, a high-molecular layer, an aggregate layer, a high-molecular layer, a waterproof layer and a release film from outside to inside. The preparation method comprises the steps of adjusting the types of siloxane in a bone material layer and a waterproof layer, changing the dosage of hydroxyl-terminated polydimethylsiloxane, adjusting the reaction temperature and time, adding synthesized plasticizer into a high polymer layer, wherein the plasticizer takes linoleic acid as an initial reaction raw material, the plasticizer obtained by adding itaconic anhydride, 1,3, 5-tris (4-hydroxyphenyl) benzene and diethyl phosphoryl ethyl triethox