WO2023216810A1 - 一种屋顶防滑用sm无纺布的制备方法 - Google Patents

一种屋顶防滑用sm无纺布的制备方法 Download PDF

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WO2023216810A1
WO2023216810A1 PCT/CN2023/088578 CN2023088578W WO2023216810A1 WO 2023216810 A1 WO2023216810 A1 WO 2023216810A1 CN 2023088578 W CN2023088578 W CN 2023088578W WO 2023216810 A1 WO2023216810 A1 WO 2023216810A1
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woven fabric
melt
preparation
temperature
preparing
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PCT/CN2023/088578
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English (en)
French (fr)
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黄文胜
刘雨佳
谢国东
张卫东
邱锦晶
孙伟峰
黄志国
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东营俊富净化科技有限公司
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Publication of WO2023216810A1 publication Critical patent/WO2023216810A1/zh

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/72—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with metaphosphoric acids or their salts; with polyphosphoric acids or their salts; with perphosphoric acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
    • D06M13/262—Sulfated compounds thiosulfates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
    • D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups

Definitions

  • the present invention relates to the technical field of roof materials, and specifically relates to a method for preparing SM non-woven fabric for roof anti-skid.
  • SM non-woven fabrics are composite non-woven fabrics. They are composite products of spunbond non-woven fabrics and melt-blown non-woven fabrics. They have the advantages of high strength, good filtering performance, good breathability, no adhesive, and non-toxicity.
  • Mainly used in medical and health labor protection products such as roofs, surgical gowns, surgical caps, protective clothing, hand wash clothes, handbags, etc.
  • SM non-woven fabrics when used mainly as anti-skid materials in roof materials are: uneven surface, good anti-skid effect, and anti-aging masterbatch added, with anti-UV function, to avoid long-term Time causes the flouring of the cloth due to sunlight exposure.
  • SM hot rolling method The material processed by this method has high strength.
  • the cloth surface of the product is smooth and only The anti-skid effect can be achieved by simply rolling the points of the spunbond rolling mill, but the anti-skid effect is very small.
  • Another process is to spray the melt-blown layer on the spun-bonded layer without hot rolling in the rolling mill.
  • the melt-blown layer and the spun-bonded layer cannot be completely bonded when combined.
  • it is easy to delaminate, resulting in different properties such as strength and inconsistent tensile tension of the two non-woven fabrics during the post-processing process, and the fabric is prone to breakage during high-speed production.
  • the melt-blown non-woven fabric Poor wear resistance, insufficient strength, and insufficient stiffness result in SM non-woven fabrics having poor wear resistance, strength, and stiffness.
  • the most commonly used method at present is to use hot-pressure bonding to bond two non-woven fabrics together.
  • this method will affect the anti-slip effect of the prepared SM non-woven fabrics and cannot fundamentally solve the two problems.
  • the strength and other properties of non-woven fabrics are different, and the tensile tension is also inconsistent.
  • the problem of fabric breakage is prone to occur during high-speed production, and it cannot solve the problems of poor wear resistance, strength and stiffness of SM non-woven fabrics.
  • the present invention provides a method for preparing SM non-woven fabrics for anti-skid roofs, which can avoid the problem that the SM non-woven fabrics cannot be completely bonded together and are easy to delaminate when combined, and can also solve the problem.
  • the two non-woven materials have different properties such as strength and inconsistent tensile tension.
  • the problem of cloth breakage is prone to occur during high-speed production.
  • it can also improve the wear resistance, strength and stiffness of SM non-woven fabrics, and the prepared SM Non-woven fabrics have low production costs, are easy to recycle, and have good environmental performance.
  • a method for preparing SM non-woven fabrics for anti-skid roofs which includes preparing spun-bonded non-woven fabric raw materials, preparing spun-bonded non-woven fabrics, preparing melt-blown non-woven fabric raw materials, preparing primary SM non-woven fabrics, and post-processing.
  • the raw materials for preparing spunbond non-woven fabrics include low melt index polypropylene, high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, and reinforcing agent , viscosity agent, and nano-titanium dioxide are mixed evenly to obtain spunbond non-woven fabric raw materials;
  • the melt index of the low melt index polypropylene is 25-35g/10min;
  • the melt index of the high melt index polypropylene is 800-900g/10min;
  • low melt index polypropylene high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyethylene glycol 6000, reinforcing agent, viscosity agent, nano titanium dioxide
  • the weight ratio is 120-130:7-9:3-5:0.5-0.7:2-4:1-2:6-8:7-9:3-4:2-4.
  • the preparation method of the reinforcing agent is: place hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate in a ball mill for ball milling, and control the ball-to-material ratio during ball milling. is 20-25:1, the ball milling speed is 200-300rpm, the temperature during ball milling is 60-65°C, and the ball milling time is 20-30min.
  • the primary reinforcing agent is obtained, and the primary reinforcing agent is vacuumed
  • control the vacuum degree of the vacuum heat treatment to 100-120Pa and the temperature to 70-80°C.
  • the reinforcing agent is obtained;
  • the weight ratio of hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate is 20-22:8-10:3-5:7-10.
  • the preparation method of the viscous agent is: add polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, and cationic polyacrylamide into deionized water, and stir at a stirring speed of 200-240 rpm at 60-65°C. After mixing for 40-50 minutes, perform spray drying. Control the inlet air temperature of the spray drying to 140-160°C and the outlet air temperature to 60-70°C. After the vacuum spray drying is completed, the viscous agent is obtained;
  • the molecular weight of the cationic polyacrylamide is 5-6 million, and the ionicity is 15-20%;
  • the weight ratio of polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, cationic polyacrylamide, and deionized water is 30-35:3-4:5-7:1-3:50-55.
  • spunbond non-woven fabrics To prepare spunbond non-woven fabrics, add spunbond non-woven fabric raw materials into a mixing device and undergo melt extrusion, melt filtration, die spinning, web laying, hot rolling, liquid application, drying and winding. Rolling and slitting to obtain spunbond non-woven fabric;
  • the air box pressure in the die spinning step is 2800-3000Pa, the fan speed ratio is 80-82%, and the temperature of the upper and lower cold air is 22-25°C;
  • the flower roll temperature is 155-160°C
  • the smooth roll temperature is 140-145°C
  • the mesh belt speed is 630-650m/min
  • the hot rolling pressure is 80-90daN/cm.
  • the raw materials for preparing melt-blown non-woven fabrics include polypropylene, polybutylene terephthalate, polyethylene, nano-silica, coco acid monoisopropylamide, modified compatibilizer, and tackifier. After mixing evenly, the melt-blown non-woven fabric raw material is obtained;
  • the preparation method of the modified compatibilizer is: add high melt index polypropylene, maleic anhydride, and methyl methacrylate into a mixer, control the speed of the mixer to 250-280 rpm, and the temperature of the mixer to 2-5°C. After low-temperature treatment at 2-5°C for 20-25 minutes, add dicumyl peroxide and n-dodecyl mercaptan, and then raise the temperature to 40-45°C at a heating rate of 1-1.2°C/min.
  • the melt index of high melt index polypropylene is 800-900g/10min;
  • the weight ratio of high melt index polypropylene, maleic anhydride, methyl methacrylate, dicumyl peroxide, n-dodecyl mercaptan, hydroxyethyl methacrylate, and sodium persulfate is 100-110 :5-6:2-3:0.5-0.8:0.6-0.7:3-4:0.2-0.4.
  • the preparation method of the thickening agent is: mix xanthan gum, cationic guar gum and seaweed polysaccharide evenly Then place it in a closed container, evacuate the closed container until the vacuum degree is 100-200Pa, then introduce oxygen, control the gas pressure of oxygen in the closed container to 70-90kPa, and then control the temperature of the closed container to 60-65°C.
  • the tackifier is obtained after treatment at 60-65°C for 40-45 minutes;
  • the weight ratio of xanthan gum, cationic guar gum and seaweed polysaccharide is 25-30:15-20:4-6.
  • melt-blown non-woven fabric raw materials are heated and melted, the melt is filtered, the melt is distributed and extruded from the spinneret holes on the die, and hot air drawing is used to obtain melt-blown fibers.
  • the spray fibers are sprayed on the spunbond non-woven fabric to form a web to obtain a primary SM non-woven fabric;
  • the temperatures in the screw zone during the heating and melting process are 200-205°C, 210-215°C, and 230-235°C respectively;
  • the filter temperature during the solution filtration process is 230-235°C;
  • the temperature of the metering pump during the melt distribution process is 230-235°C, and the rotation speed is 25-30 rpm;
  • the air temperature during the hot air drafting process is 200-210°C, and the rotation speed is 700-710 rpm;
  • the web forming speed is 25-27rpm
  • the diameter of the spinneret is 0.45-0.55mm
  • the fiber diameter of the melt-blown fiber is 10-12 ⁇ m.
  • the post-treatment is to spray the active liquid on the surface of the primary SM non-woven fabric at 40-45°C, control the usage amount of the active liquid to 50-60g/ m2 , and dry it at 40-45°C after the spraying.
  • composition of the active solution includes: 100-110 parts of deionized water, 7-9 parts of maltodextrin, 5-6 parts of sodium tripolyphosphate, 2-3 parts of sodium lauryl sulfate, 0.2-0.5 parts of polydiallyldimethylammonium chloride.
  • the preparation method of the SM non-woven fabric for anti-skid roofs of the present invention can avoid the problem that the SM non-woven fabrics cannot be completely bonded together when combined and are easy to delaminate.
  • the SM non-woven fabrics for anti-skid roofs prepared by the present invention can be Place it at a temperature of 38°C and a humidity of 85% and let it stand for 10 days, 20 days, 30 days, 60 days, and 90 days. After testing at a fixed elongation of 10% according to ASTM D5035, no delamination will occur;
  • the preparation method of the SM non-woven fabric for roof anti-skid of the present invention can solve the problem that the two non-woven fabric materials have different properties such as strength and inconsistent tensile tension, and the fabric is prone to breakage during high-speed production. question;
  • the preparation method of the SM non-woven fabric for roof anti-skid of the present invention can improve the wear resistance, strength and stiffness of the SM non-woven fabric.
  • the transverse strength of the SM non-woven fabric prepared by the present invention is 39-43N, and the longitudinal strength of the SM non-woven fabric is 39-43N.
  • the strong force is 52-55N and the friction coefficient is 1.2-1.5;
  • the SM non-woven fabric for roof anti-skid prepared by the present invention has a weight of 45-49g/ m2 , a porosity of 56-61%, a fiber fineness of 11-13 ⁇ m, and an air permeability of 2900-3100mm/s. Thickness is 0.37-0.42mm;
  • the SM non-woven fabric for roof anti-skid prepared by the present invention has low production cost, is easy to recycle, and has good environmental protection performance.
  • a method for preparing SM non-woven fabric for roof anti-skid specifically:
  • spunbond non-woven fabric raw materials combine low melt index polypropylene, high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, and reinforcing agent , viscosity agent, and nano-titanium dioxide are mixed evenly to obtain spunbond non-woven fabric raw materials;
  • the melt index of the low melt index polypropylene is 25g/10min;
  • the melt index of the high melt index polypropylene is 800g/10min;
  • low melt index polypropylene high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyethylene glycol 6000, reinforcing agent, viscosity agent, nano titanium dioxide
  • the weight ratio is 120:7:3:0.5:2:1:6:7:3:2.
  • the preparation method of the reinforcing agent is: place hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate in a ball mill for ball milling, and control the ball-to-material ratio during ball milling. is 20:1, the ball milling speed is 200rpm, the temperature during ball milling is 60°C, and the ball milling time is 20 minutes.
  • the primary reinforcing agent is obtained, and the primary reinforcing agent is subjected to vacuum heating treatment, and the vacuum heating treatment is controlled.
  • the vacuum degree is 100Pa, the temperature is 70°C, and the reinforcing agent is obtained after the vacuum heating treatment is completed;
  • the weight ratio of hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate is 20:8:3:7.
  • the preparation method of the viscous agent is: add polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, and cationic polyacrylamide to deionized water, stir at 60°C for 40 minutes at a stirring speed of 200 rpm, and then spray dry. Control the inlet air temperature of the spray drying to 140°C and the outlet air temperature to 60°C. After the vacuum spray drying is completed, the viscous agent is obtained;
  • the molecular weight of the cationic polyacrylamide is 5 million, and the ionicity is 15%;
  • the weight ratio of polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, cationic polyacrylamide, and deionized water is 30:3:5:1:50.
  • spunbond non-woven fabric Add the spunbond non-woven fabric raw materials into the mixing device, and proceed through melt extrusion, melt filtration, die spinning, web laying, hot rolling, liquid application, drying and winding Rolling and slitting to obtain spunbond non-woven fabric;
  • the air box pressure in the die spinning step is 2800Pa, the fan speed ratio is 80%, and the temperature of the upper and lower cold air is 22°C;
  • the flower roll temperature is 155°C
  • the smooth roll temperature is 140°C
  • the mesh belt speed is 630m/min
  • the hot rolling pressure is 80daN/cm.
  • melt-blown non-woven fabric raw materials polypropylene, polybutylene terephthalate, polyethylene, nano-silica, coco acid monoisopropylamide, modified compatibilizer, and tackifier After mixing evenly, the melt-blown non-woven fabric raw material is obtained;
  • the preparation method of the modified compatibilizer is: add high melt index polypropylene, maleic anhydride, and methyl methacrylate into a mixer, control the speed of the mixer to 250 rpm, and the temperature of the mixer to 2°C. After low temperature treatment for 20 minutes, add dicumyl peroxide and n-dodecyl mercaptan, then raise the temperature to 40°C at a heating rate of 1°C/min, stir at 40°C for 15 minutes, add hydroxyethyl methacrylate, Sodium persulfate, then heated to 50°C at a heating rate of 0.8°C/min, stirred at 50°C for 20 minutes, and returned to room temperature naturally to obtain a modified compatibilizer;
  • the melt index of high melt index polypropylene is 800g/10min;
  • the preparation method of the tackifier is as follows: Mix xanthan gum, cationic guar gum and seaweed polysaccharide evenly and place them in a closed container, evacuate the closed container until the vacuum degree is 100Pa, then introduce oxygen, and control the airtight container. The gas pressure of oxygen is 70kPa, then the temperature of the closed container is controlled to 60°C, and the tackifier is obtained after treatment at 60°C for 40 minutes;
  • the weight ratio of xanthan gum, cationic guar gum and seaweed polysaccharide is 25:15:4.
  • the temperatures in the screw area during the heating and melting process are 200°C, 210°C, and 230°C respectively;
  • the filter temperature during the solution filtration process is 230°C;
  • the temperature of the metering pump during the melt distribution process is 230°C, and the rotation speed is 25 rpm;
  • the air temperature during the hot air drafting process is 200°C, and the rotation speed is 700rpm;
  • the web forming speed is 25rpm;
  • the diameter of the spinneret is 0.45mm
  • the fiber diameter of the melt-blown fiber is 10 ⁇ m.
  • Post-processing Spray the active liquid on the surface of the primary SM non-woven fabric at 40°C, control the usage amount of the active liquid to 50g/m 2 , and dry it at 40°C after spraying to obtain the SM non-woven fabric;
  • composition of the active liquid includes: 100 parts of deionized water, 7 parts of maltodextrin, 5 parts of sodium tripolyphosphate, 2 parts of sodium lauryl sulfate, 0.2 parts of polydiallyl Methyl ammonium chloride.
  • a method for preparing SM non-woven fabric for roof anti-skid specifically:
  • spunbond non-woven fabric raw materials combine low melt index polypropylene, high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, and reinforcing agent , The viscous agent and nano-titanium dioxide are mixed evenly to obtain the raw material of spunbond non-woven fabric;
  • the melt index of the low melt index polypropylene is 30g/10min;
  • the melt index of the high melt index polypropylene is 850g/10min
  • low melt index polypropylene high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyethylene glycol 6000, reinforcing agent, viscosity agent, nano titanium dioxide
  • the weight ratio is 125:8:4:0.6:3:1.5:7:8:3.5:3.
  • the preparation method of the reinforcing agent is: place hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate in a ball mill for ball milling, and control the ball-to-material ratio during ball milling. is 22:1, the ball milling speed is 250rpm, the temperature during ball milling is 62°C, and the ball milling time is 25min.
  • the primary reinforcing agent is obtained, and the primary reinforcing agent is subjected to vacuum heating treatment, and the vacuum heating treatment is controlled.
  • the vacuum degree is 110Pa, the temperature is 75°C, and the reinforcing agent is obtained after the vacuum heating treatment is completed;
  • the weight ratio of hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate is 21:9:4:8.
  • the preparation method of the viscous agent is: add polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, and cationic polyacrylamide to deionized water, stir at 62°C for 45 minutes at a stirring speed of 220 rpm, and then spray dry. Control the inlet air temperature of spray drying to 150°C and the outlet air temperature to 65°C. After the vacuum spray drying is completed, the viscous agent is obtained;
  • the molecular weight of the cationic polyacrylamide is 5.5 million, and the ionicity is 17%;
  • the weight ratio of polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, cationic polyacrylamide, and deionized water is 32:3.5:6:2:52.
  • spunbond non-woven fabric Add the spunbond non-woven fabric raw materials into the mixing device, and proceed through melt extrusion, melt filtration, die spinning, web laying, hot rolling, liquid application, drying and winding Rolling and slitting to obtain spunbond non-woven fabric;
  • the air box pressure in the die spinning step is 2900Pa, the fan speed ratio is 81%, and the temperature of the upper and lower cold air is 23°C;
  • the flower roll temperature is 157°C
  • the smooth roll temperature is 142°C
  • the mesh belt speed is 640m/min
  • the hot rolling pressure is 85daN/cm.
  • melt-blown non-woven fabric raw materials polypropylene, polybutylene terephthalate, polyethylene, nano-silica, coco acid monoisopropylamide, modified compatibilizer, and tackifier After mixing evenly, the melt-blown non-woven fabric raw material is obtained;
  • the preparation method of the modified compatibilizer is: add high melt index polypropylene, maleic anhydride, and methyl methacrylate into a mixer, control the speed of the mixer to 260 rpm, and the temperature of the mixer to 3°C. After low-temperature treatment for 22 minutes, add dicumyl peroxide and n-dodecyl mercaptan, then raise the temperature to 42°C at a heating rate of 1.1°C/min, stir at 42°C for 17 minutes, and add hydroxyethyl methacrylate. Sodium persulfate, then heated to 52°C at a heating rate of 0.9°C/min, stirred at 52°C for 22 minutes, and returned to room temperature naturally to obtain a modified compatibilizer;
  • the melt index of high melt index polypropylene is 850g/10min
  • the weight ratio of high melt index polypropylene, maleic anhydride, methyl methacrylate, dicumyl peroxide, n-dodecyl mercaptan, hydroxyethyl methacrylate and sodium persulfate is 105:5.5 :2.5:0.7:0.6:3.5:0.3.
  • the preparation method of the tackifier is as follows: mix xanthan gum, cationic guar gum and seaweed polysaccharide evenly and place them in a closed container, evacuate the closed container until the vacuum degree is 150Pa, then introduce oxygen, and control the airtight container.
  • the gas pressure of oxygen is 80kPa, then the temperature of the closed container is controlled to 62°C, and the tackifier is obtained after treatment at 62°C for 42 minutes;
  • the weight ratio of xanthan gum, cationic guar gum and seaweed polysaccharide is 27:17:5.
  • the temperatures in the screw zone during the heating and melting process are 202°C, 212°C, and 232°C respectively;
  • the filter temperature during the solution filtration process is 232°C;
  • the temperature of the metering pump during the melt distribution process is 232°C, and the rotation speed is 27 rpm;
  • the air temperature during the hot air drawing process is 205°C, and the rotation speed is 705 rpm;
  • the web forming speed is 26 rpm;
  • the diameter of the spinneret is 0.5mm
  • the fiber diameter of the melt-blown fiber is 11 ⁇ m.
  • Post-processing Spray the active liquid on the surface of the primary SM non-woven fabric at 40-45°C, control the usage amount of the active liquid to 55g/m 2 , and dry it at 42°C after spraying to obtain the SM non-woven fabric. cloth;
  • composition of the active liquid includes: 105 parts of deionized water, 8 parts of maltodextrin, 5.5 parts of sodium tripolyphosphate, 2.5 parts of sodium lauryl sulfate, 0.3 parts of polydiallyl Methyl ammonium chloride.
  • a method for preparing SM non-woven fabric for roof anti-skid specifically:
  • spunbond non-woven fabric raw materials combine low melt index polypropylene, high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, and reinforcing agent , viscosity agent, and nano-titanium dioxide are mixed evenly to obtain spunbond non-woven fabric raw materials;
  • the melt index of the low melt index polypropylene is 35g/10min;
  • the melt index of the high melt index polypropylene is 900g/10min
  • low melt index polypropylene high melt index polypropylene, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyethylene glycol 6000, reinforcing agent, viscosity agent, nano titanium dioxide
  • the weight ratio is 130:9:3:0.7:4:2:8:9:4:4.
  • the preparation method of the reinforcing agent is: place hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate in a ball mill for ball milling, and control the ball-to-material ratio during ball milling. is 25:1, the ball milling speed is 300rpm, the temperature during ball milling is 65°C, and the ball milling time is 30 minutes.
  • the primary reinforcing agent is obtained, and the primary reinforcing agent is subjected to vacuum heating treatment, and the vacuum heating treatment is controlled.
  • the vacuum degree is 120Pa, the temperature is 80°C, and the reinforcing agent is obtained after the vacuum heating treatment is completed;
  • the weight ratio of hexagonal boron nitride powder, light calcium carbonate, cetyltrimethylammonium bromide, and sodium hexametaphosphate is 22:10:5:10.
  • the preparation method of the viscous agent is: add polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, and cationic polyacrylamide to deionized water, stir at 65°C for 50 minutes at a stirring speed of 240 rpm, and then spray dry. Control the inlet air temperature of spray drying to 160°C, the outlet air temperature to 70°C, and the vacuum At the end of spray drying, the viscous agent is obtained;
  • the molecular weight of the cationic polyacrylamide is 6 million, and the ionicity is 20%;
  • the weight ratio of polyvinyl alcohol 2488, cyclodextrin, hydroxyethyl cellulose, cationic polyacrylamide, and deionized water is 35:4:7:3:55.
  • spunbond non-woven fabric Add the spunbond non-woven fabric raw materials into the mixing device, and proceed through melt extrusion, melt filtration, die spinning, web laying, hot rolling, liquid application, drying and winding Rolling and slitting to obtain spunbond non-woven fabric;
  • the air box pressure in the die spinning step is 3000Pa, the fan speed ratio is 82%, and the temperature of the upper and lower cold air is 25°C;
  • the flower roll temperature is 160°C
  • the smooth roll temperature is 145°C
  • the mesh belt speed is 650m/min
  • the hot rolling pressure is 90daN/cm.
  • melt-blown non-woven fabric raw materials polypropylene, polybutylene terephthalate, polyethylene, nano-silica, coco acid monoisopropylamide, modified compatibilizer, and tackifier After mixing evenly, the melt-blown non-woven fabric raw material is obtained;
  • the preparation method of the modified compatibilizer is: add high melt index polypropylene, maleic anhydride, and methyl methacrylate into a mixer, control the speed of the mixer to 280 rpm, and the temperature of the mixer to 5°C. After low-temperature treatment for 25 minutes, add dicumyl peroxide and n-dodecyl mercaptan, then raise the temperature to 45°C at a heating rate of 1.2°C/min, stir at 45°C for 20 minutes, and add hydroxyethyl methacrylate. sodium persulfate, then raise the temperature to 55°C at a heating rate of 1°C/min, stir at 55°C for 25 minutes, and return to room temperature naturally to obtain a modified compatibilizer;
  • the melt index of high melt index polypropylene is 900g/10min
  • the weight ratio of high melt index polypropylene, maleic anhydride, methyl methacrylate, dicumyl peroxide, n-dodecyl mercaptan, hydroxyethyl methacrylate and sodium persulfate is 110:6 :3:0.8:0.7:4:0.4.
  • the preparation method of the tackifier is as follows: mix xanthan gum, cationic guar gum and seaweed polysaccharide evenly and place them in a closed container, evacuate the closed container until the vacuum degree is 200Pa, then introduce oxygen, and control the inside of the closed container.
  • the gas pressure of oxygen is 90kPa, and then the temperature of the closed container is controlled to 65°C.
  • the tackifier is obtained after treatment at 65°C for 45 minutes;
  • the weight ratio of xanthan gum, cationic guar gum and seaweed polysaccharide is 30:20:6.
  • the temperatures in the screw area during the heating and melting process are 205°C, 215°C, and 235°C respectively;
  • the filter temperature during the solution filtration process is 235°C;
  • the temperature of the metering pump during the melt distribution process is 235°C, and the rotation speed is 30 rpm;
  • the air temperature during the hot air drafting process is 210°C, and the rotation speed is 710 rpm;
  • the web forming speed is 27rpm
  • the diameter of the spinneret is 0.55mm
  • the fiber diameter of the melt-blown fiber is 12 ⁇ m.
  • Post-processing Spray the active liquid on the surface of the primary SM non-woven fabric at 45°C, control the usage amount of the active liquid to 60g/m 2 , and dry it at 45°C after spraying to obtain the SM non-woven fabric;
  • composition of the active liquid includes: 110 parts of deionized water, 9 parts of maltodextrin, 6 parts of sodium tripolyphosphate, 3 parts of sodium lauryl sulfate, 0.5 parts of polydiallyl di Methyl ammonium chloride.
  • the preparation method of SM non-woven fabric for roof anti-skid described in Example 1 is adopted. The difference is that in the first step of preparing the spunbond non-woven fabric raw material, hexagonal boron nitride powder is used instead of the reinforcing agent.
  • the preparation method of SM non-woven fabric for roof anti-skid described in Example 1 is adopted, and the difference is that the addition of modified compatibilizer is omitted in the third step of preparing the melt-blown non-woven fabric raw material.
  • SM non-woven fabrics for roof anti-skid prepared in Examples 1-3 and Comparative Examples 1-3 were left to stand at a temperature of 38°C and a humidity of 85% for 10 days, 20 days, 30 days, 60 days and 90 days.
  • Statistical analysis was performed after Layer conditions, the statistical results are as follows:
  • the invention provides a method for preparing SM non-woven fabric for roof anti-skid, and prepares spunbond non-woven fabric raw material.
  • the invention can avoid the problem that SM non-woven fabrics cannot be completely bonded together and are easy to delaminate when combined, and can also solve the problem of easy fabric breakage during high-speed production. At the same time, it can also improve the wear resistance of SM non-woven fabrics. , strength and stiffness, and the prepared SM non-woven fabric has low production cost, is easy to recycle, and has good environmental performance.
  • the invention has broad application prospects and good industrial applicability in the field of roof materials.

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Abstract

一种屋顶防滑用SM无纺布的制备方法，属于屋顶材料技术领域，包括制备纺粘无纺布原料，制备纺粘无纺布，制备熔喷无纺布原料，制备初级SM无纺布，后处理；该制备纺粘无纺布原料，将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂，粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；该制备方法能够避免SM无纺布在结合时不能完全粘合在一起，容易分层的问题，还能够解决高速生产过程中容易出现断布的问题，同时还能够提高SM无纺布的耐磨性，强度和硬挺度，并且制备的SM无纺布生产成本低，易回收，环保性能好。

Description

一种屋顶防滑用SM无纺布的制备方法
相关申请的交叉引用
本申请要求2022年05月10日提交、申请号为202210503842.3的中国专利申请的优先权，其所公开的内容作为参考全文并入本申请。
技术领域
本发明涉及屋顶材料技术领域，具体涉及一种屋顶防滑用SM无纺布的制备方法。
背景技术
SM无纺布属于复合无纺布，是纺粘无纺布和熔喷无纺布的复合产品，具有强力高、过滤性能好、透气性能好、不含粘合剂、无毒等优点，目前主要用于医疗卫生劳动防护产品如屋顶、手术服、手术帽、防护服、洗手衣、手袋等。
相对于单独使用纺粘无纺布，SM无纺布在屋顶材料中主要作为防滑材料使用时的优点有：表面凹凸不平，防滑效果好，并且添加抗老化母粒，具备抗UV功能，避免长时间阳光照射导致的布面粉化。但是现有的SM无纺布有两种工艺，一种是SM热轧法，该方法加工的材料，其强度高，但是由于过轧机将材料完全融为一体，导致产品的布面光滑，只能靠单纯纺粘轧机轧点起到防滑作用，防滑效果甚微。另一种工艺是将熔喷层喷覆在纺粘层上面，不经过轧机热轧，但由于熔喷铺网过程中迅速结晶，导致熔喷层和纺粘层在结合时不能完全粘合在一起，容易分层，造成后加工过程中，由于两种无纺布材料强力等性能不同，拉伸张力也不一致，高速生产过程中容易出现断布的情况，此外，由于熔喷无纺布的耐磨性差，强度不度，硬挺度不够，导致了SM无纺布的耐磨性，强度和硬挺度较差。
为了解决上述问题，目前最常用的方法为使用热压粘合将两种无纺布粘合到一起,但是该方法会影响制备的SM无纺布的防滑效果,而且不能从根本上解决两种无纺布材料强力等性能不同，拉伸张力也不一致，高速生产过程中容易出现断布的问题，也不能解决SM无纺布的耐磨性，强度和硬挺度较差的问题。
发明内容
针对现有技术存在的不足，本发明提供了一种屋顶防滑用SM无纺布的制备方法，能够避免SM无纺布在结合时不能完全粘合在一起，容易分层的问题，还能够解决两种无纺布材料强力等性能不同，拉伸张力也不一致，高速生产过程中容易出现断布的问题，同时还能够提高SM无纺布的耐磨性，强度和硬挺度，并且制备的SM无纺布生产成本低，易回收，环保性能好。
为解决以上技术问题，本发明采取的技术方案如下：
一种屋顶防滑用SM无纺布的制备方法，包括制备纺粘无纺布原料，制备纺粘无纺布，制备熔喷无纺布原料，制备初级SM无纺布，后处理。
所述制备纺粘无纺布原料，将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂，粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；
所述低熔融指数聚丙烯的熔融指数为25-35g/10min；
所述高熔融指数聚丙烯的熔融指数为800-900g/10min；
其中，低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙二醇6000，增强剂，粘性剂，纳米二氧化钛的重量比为120-130:7-9:3-5:0.5-0.7:2-4:1-2:6-8:7-9:3-4:2-4。
所述增强剂的制备方法为：将六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠置于球磨机中进行球磨，控制球磨时的球料比为20-25:1，球磨转速为200-300rpm，球磨时的温度为60-65℃，球磨时间为20-30min，球磨结束后得到初级增强剂，将初级增强剂，将初级增强剂进行真空加热处理，控制真空加热处理的真空度为100-120Pa，温度为70-80℃，真空加热处理结束得到增强剂；
其中，六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠的重量比为20-22:8-10:3-5:7-10。
所述粘性剂的制备方法为：将聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺加入去离子水中，在60-65℃下以200-240rpm的搅拌速度搅 拌40-50min后进行喷雾干燥，控制喷雾干燥的进风温度为140-160℃，出风温度为60-70℃，真空喷雾干燥结束得到粘性剂；
所述阳离子聚丙烯酰胺的分子量为500-600万，离子度为15-20％；
其中，聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺，去离子水的重量比为30-35:3-4:5-7:1-3:50-55。
所述制备纺粘无纺布，将纺粘无纺布原料加入混料装置中，经熔融挤压、熔体过滤、模头喷丝、铺网、热轧、上液、烘干、卷绕收卷、分切，得到纺粘无纺布；
所述模头喷丝步骤中的风箱压力为2800-3000Pa，风机转速比为80-82％，上下冷风的温度为22-25℃；
所述热轧处理步骤中的花辊温度为155-160℃，光辊温度为140-145℃，网带速度为630-650m/min，热轧压力为80-90daN/cm。
所述制备熔喷无纺布原料，将聚丙烯，聚丁烯对苯二甲酸酯，聚乙烯，纳米二氧化硅，椰油酸单异丙醇酰胺，改性增容剂，增粘剂混合均匀后得到熔喷无纺布原料；
所述改性增容剂的制备方法为：将高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯加入搅拌机中，控制搅拌机的转速为250-280rpm，搅拌机的温度为2-5℃，在2-5℃下低温处理20-25min后，加入过氧化二异丙苯，正十二烷基硫醇，然后以1-1.2℃/min的升温速度升温至40-45℃，在40-45℃下搅拌15-20min，加入甲基丙烯酸羟乙酯，过硫酸钠，然后以0.8-1℃/min的升温速度升温至50-55℃，在50-55℃下搅拌20-25min，自然恢复至室温，得到改性增容剂；
高熔融指数聚丙烯的熔融指数为800-900g/10min；
其中，高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯，过氧化二异丙苯，正十二烷基硫醇，甲基丙烯酸羟乙酯，过硫酸钠的重量比为100-110:5-6:2-3:0.5-0.8:0.6-0.7:3-4:0.2-0.4。
所述增粘剂的制备方法为：将黄原胶，阳离子瓜尔胶，海藻多糖混合均匀 后置于密闭容器中，将密闭容器抽真空至真空度为100-200Pa后通入氧气，控制密闭容器内氧气的气体压力为70-90kPa，然后将密闭容器的温度控制到60-65℃，在60-65℃下处理40-45min后得到增粘剂；
其中，黄原胶，阳离子瓜尔胶，海藻多糖的重量比为25-30:15-20:4-6。
所述制备初级SM无纺布，将熔喷无纺布原料进行加热熔融，熔体过滤，熔体分配后由模头上的喷丝孔挤出，使用热风牵伸得到熔喷纤维，将熔喷纤维喷覆于纺粘无纺布上进行成网，得到初级SM无纺布；
所述加热熔融过程中螺杆区的温度分别为200-205℃,210-215℃,230-235℃；
所述溶体过滤过程中的过滤器温度为230-235℃；
所述熔体分配过程中的计量泵温度为230-235℃，转速为25-30rpm；
所述热风牵伸过程中的风温为200-210℃，转速为700-710rpm；
所述成网速度为25-27rpm；
所述喷丝孔的孔径为0.45-0.55mm；
所述熔喷纤维的纤维直径为10-12μm。
所述后处理，在40-45℃下对初级SM无纺布表面喷淋活性液，控制活性液的使用量为50-60g/m2，喷淋结束后在40-45℃下烘干，得到SM无纺布；
所述活性液的组成，按重量份计，包括：100-110份去离子水，7-9份麦芽糊精，5-6份三聚磷酸钠，2-3份十二烷基硫酸钠，0.2-0.5份聚二烯丙基二甲基氯化铵。
与现有技术相比，本发明的有益效果为：
(1)本发明的屋顶防滑用SM无纺布的制备方法，能够避免SM无纺布在结合时不能完全粘合在一起，容易分层的问题，将本发明制备的屋顶防滑用SM无纺布置于温度为38℃，湿度85％下静置10天，20天，30天，60天，90天后，按照ASTM D5035定伸长10％测试，不会发生分层现象；
(2)本发明的屋顶防滑用SM无纺布的制备方法，能够解决两种无纺布材料强力等性能不同，拉伸张力也不一致，高速生产过程中容易出现断布的问 题；
(3)本发明的屋顶防滑用SM无纺布的制备方法，能够提高SM无纺布的耐磨性，强度和硬挺度，本发明制备的SM无纺布的横向强度为39-43N，纵向强力为52-55N，摩擦系数为1.2-1.5；
(4)本发明制备的屋顶防滑用SM无纺布，克重为45-49g/m2，孔隙率为56-61％，纤维细度为11-13μm，透气量为2900-3100mm/s，厚度为0.37-0.42mm；
(5)本发明制备的屋顶防滑用SM无纺布，生产成本低，易回收，环保性能好。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现说明本发明的具体实施方式。
实施例1
一种屋顶防滑用SM无纺布的制备方法，具体为：
1.制备纺粘无纺布原料：将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂，粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；
所述低熔融指数聚丙烯的熔融指数为25g/10min；
所述高熔融指数聚丙烯的熔融指数为800g/10min；
其中，低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙二醇6000，增强剂，粘性剂，纳米二氧化钛的重量比为120:7:3:0.5:2:1:6:7:3:2。
所述增强剂的制备方法为：将六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠置于球磨机中进行球磨，控制球磨时的球料比为20:1，球磨转速为200rpm，球磨时的温度为60℃，球磨时间为20min，球磨结束后得到初级增强剂，将初级增强剂，将初级增强剂进行真空加热处理，控制真空加热处理的真空度为100Pa，温度为70℃，真空加热处理结束得到增强剂；
其中，六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠的重量比为20:8:3:7。
所述粘性剂的制备方法为：将聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺加入去离子水中，在60℃下以200rpm的搅拌速度搅拌40min后进行喷雾干燥，控制喷雾干燥的进风温度为140℃，出风温度为60℃，真空喷雾干燥结束得到粘性剂；
所述阳离子聚丙烯酰胺的分子量为500万，离子度为15％；
其中，聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺，去离子水的重量比为30:3:5:1:50。
2.制备纺粘无纺布：将纺粘无纺布原料加入混料装置中，经熔融挤压、熔体过滤、模头喷丝、铺网、热轧、上液、烘干、卷绕收卷、分切，得到纺粘无纺布；
所述模头喷丝步骤中的风箱压力为2800Pa，风机转速比为80％，上下冷风的温度为22℃；
所述热轧处理步骤中的花辊温度为155℃，光辊温度为140℃，网带速度为630m/min，热轧压力为80daN/cm。
3.制备熔喷无纺布原料：将聚丙烯，聚丁烯对苯二甲酸酯，聚乙烯，纳米二氧化硅，椰油酸单异丙醇酰胺，改性增容剂，增粘剂混合均匀后得到熔喷无纺布原料；
所述改性增容剂的制备方法为：将高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯加入搅拌机中，控制搅拌机的转速为250rpm，搅拌机的温度为2℃，在2℃下低温处理20min后，加入过氧化二异丙苯，正十二烷基硫醇，然后以1℃/min的升温速度升温至40℃，在40℃下搅拌15min，加入甲基丙烯酸羟乙酯，过硫酸钠，然后以0.8℃/min的升温速度升温至50℃，在50℃下搅拌20min，自然恢复至室温，得到改性增容剂；
高熔融指数聚丙烯的熔融指数为800g/10min；
其中，高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯，过氧化二异丙苯， 正十二烷基硫醇，甲基丙烯酸羟乙酯，过硫酸钠的重量比为100:5:2:0.5:0.6:3:0.2。
所述增粘剂的制备方法为：将黄原胶，阳离子瓜尔胶，海藻多糖混合均匀后置于密闭容器中，将密闭容器抽真空至真空度为100Pa后通入氧气，控制密闭容器内氧气的气体压力为70kPa，然后将密闭容器的温度控制到60℃，在60℃下处理40min后得到增粘剂；
其中，黄原胶，阳离子瓜尔胶，海藻多糖的重量比为25:15:4。
4.制备初级SM无纺布：将熔喷无纺布原料进行加热熔融，熔体过滤，熔体分配后由模头上的喷丝孔挤出，使用热风牵伸得到熔喷纤维，将熔喷纤维喷覆于第2步制备的纺粘无纺布上进行成网，得到初级SM无纺布；
所述加热熔融过程中螺杆区的温度分别为200℃,210℃,230℃；
所述溶体过滤过程中的过滤器温度为230℃；
所述熔体分配过程中的计量泵温度为230℃，转速为25rpm；
所述热风牵伸过程中的风温为200℃，转速为700rpm；
所述成网速度为25rpm；
所述喷丝孔的孔径为0.45mm；
所述熔喷纤维的纤维直径为10μm。
5.后处理：在40℃下对初级SM无纺布表面喷淋活性液，控制活性液的使用量为50g/m2，喷淋结束后在40℃下烘干，得到SM无纺布；
所述活性液的组成，按重量份计，包括：100份去离子水，7份麦芽糊精，5份三聚磷酸钠，2份十二烷基硫酸钠，0.2份聚二烯丙基二甲基氯化铵。
本实施例在制备过程中未出现断布情况。
实施例2
一种屋顶防滑用SM无纺布的制备方法，具体为：
1.制备纺粘无纺布原料：将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂， 粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；
所述低熔融指数聚丙烯的熔融指数为30g/10min；
所述高熔融指数聚丙烯的熔融指数为850g/10min；
其中，低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙二醇6000，增强剂，粘性剂，纳米二氧化钛的重量比为125:8:4:0.6:3:1.5:7:8:3.5:3。
所述增强剂的制备方法为：将六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠置于球磨机中进行球磨，控制球磨时的球料比为22:1，球磨转速为250rpm，球磨时的温度为62℃，球磨时间为25min，球磨结束后得到初级增强剂，将初级增强剂，将初级增强剂进行真空加热处理，控制真空加热处理的真空度为110Pa，温度为75℃，真空加热处理结束得到增强剂；
其中，六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠的重量比为21:9:4:8。
所述粘性剂的制备方法为：将聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺加入去离子水中，在62℃下以220rpm的搅拌速度搅拌45min后进行喷雾干燥，控制喷雾干燥的进风温度为150℃，出风温度为65℃，真空喷雾干燥结束得到粘性剂；
所述阳离子聚丙烯酰胺的分子量为550万，离子度为17％；
其中，聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺，去离子水的重量比为32:3.5:6:2:52。
2.制备纺粘无纺布：将纺粘无纺布原料加入混料装置中，经熔融挤压、熔体过滤、模头喷丝、铺网、热轧、上液、烘干、卷绕收卷、分切，得到纺粘无纺布；
所述模头喷丝步骤中的风箱压力为2900Pa，风机转速比为81％，上下冷风的温度为23℃；
所述热轧处理步骤中的花辊温度为157℃，光辊温度为142℃，网带速度为640m/min，热轧压力为85daN/cm。
3.制备熔喷无纺布原料：将聚丙烯，聚丁烯对苯二甲酸酯，聚乙烯，纳米二氧化硅，椰油酸单异丙醇酰胺，改性增容剂，增粘剂混合均匀后得到熔喷无纺布原料；
所述改性增容剂的制备方法为：将高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯加入搅拌机中，控制搅拌机的转速为260rpm，搅拌机的温度为3℃，在3℃下低温处理22min后，加入过氧化二异丙苯，正十二烷基硫醇，然后以1.1℃/min的升温速度升温至42℃，在42℃下搅拌17min，加入甲基丙烯酸羟乙酯，过硫酸钠，然后以0.9℃/min的升温速度升温至52℃，在52℃下搅拌22min，自然恢复至室温，得到改性增容剂；
高熔融指数聚丙烯的熔融指数为850g/10min；
其中，高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯，过氧化二异丙苯，正十二烷基硫醇，甲基丙烯酸羟乙酯，过硫酸钠的重量比为105:5.5:2.5:0.7:0.6:3.5:0.3。
所述增粘剂的制备方法为：将黄原胶，阳离子瓜尔胶，海藻多糖混合均匀后置于密闭容器中，将密闭容器抽真空至真空度为150Pa后通入氧气，控制密闭容器内氧气的气体压力为80kPa，然后将密闭容器的温度控制到62℃，在62℃下处理42min后得到增粘剂；
其中，黄原胶，阳离子瓜尔胶，海藻多糖的重量比为27:17:5。
4.制备初级SM无纺布：将熔喷无纺布原料进行加热熔融，熔体过滤，熔体分配后由模头上的喷丝孔挤出，使用热风牵伸得到熔喷纤维，将熔喷纤维喷覆于第2步制备的纺粘无纺布上进行成网，得到初级SM无纺布；
所述加热熔融过程中螺杆区的温度分别为202℃,212℃,232℃；
所述溶体过滤过程中的过滤器温度为232℃；
所述熔体分配过程中的计量泵温度为232℃，转速为27rpm；
所述热风牵伸过程中的风温为205℃，转速为705rpm；
所述成网速度为26rpm；
所述喷丝孔的孔径为0.5mm；
所述熔喷纤维的纤维直径为11μm。
5.后处理：在40-45℃下对初级SM无纺布表面喷淋活性液，控制活性液的使用量为55g/m2，喷淋结束后在42℃下烘干，得到SM无纺布；
所述活性液的组成，按重量份计，包括：105份去离子水，8份麦芽糊精，5.5份三聚磷酸钠，2.5份十二烷基硫酸钠，0.3份聚二烯丙基二甲基氯化铵。
本实施例在制备过程中未出现断布情况。
实施例3
一种屋顶防滑用SM无纺布的制备方法，具体为：
1.制备纺粘无纺布原料：将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂，粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；
所述低熔融指数聚丙烯的熔融指数为35g/10min；
所述高熔融指数聚丙烯的熔融指数为900g/10min；
其中，低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙二醇6000，增强剂，粘性剂，纳米二氧化钛的重量比为130:9:3:0.7:4:2:8:9:4:4。
所述增强剂的制备方法为：将六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠置于球磨机中进行球磨，控制球磨时的球料比为25:1，球磨转速为300rpm，球磨时的温度为65℃，球磨时间为30min，球磨结束后得到初级增强剂，将初级增强剂，将初级增强剂进行真空加热处理，控制真空加热处理的真空度为120Pa，温度为80℃，真空加热处理结束得到增强剂；
其中，六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠的重量比为22:10:5:10。
所述粘性剂的制备方法为：将聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺加入去离子水中，在65℃下以240rpm的搅拌速度搅拌50min后进行喷雾干燥，控制喷雾干燥的进风温度为160℃，出风温度为70℃，真空 喷雾干燥结束得到粘性剂；
所述阳离子聚丙烯酰胺的分子量为600万，离子度为20％；
其中，聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺，去离子水的重量比为35:4:7:3:55。
2.制备纺粘无纺布：将纺粘无纺布原料加入混料装置中，经熔融挤压、熔体过滤、模头喷丝、铺网、热轧、上液、烘干、卷绕收卷、分切，得到纺粘无纺布；
所述模头喷丝步骤中的风箱压力为3000Pa，风机转速比为82％，上下冷风的温度为25℃；
所述热轧处理步骤中的花辊温度为160℃，光辊温度为145℃，网带速度为650m/min，热轧压力为90daN/cm。
3.制备熔喷无纺布原料：将聚丙烯，聚丁烯对苯二甲酸酯，聚乙烯，纳米二氧化硅，椰油酸单异丙醇酰胺，改性增容剂，增粘剂混合均匀后得到熔喷无纺布原料；
所述改性增容剂的制备方法为：将高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯加入搅拌机中，控制搅拌机的转速为280rpm，搅拌机的温度为5℃，在5℃下低温处理25min后，加入过氧化二异丙苯，正十二烷基硫醇，然后以1.2℃/min的升温速度升温至45℃，在45℃下搅拌20min，加入甲基丙烯酸羟乙酯，过硫酸钠，然后以1℃/min的升温速度升温至55℃，在55℃下搅拌25min，自然恢复至室温，得到改性增容剂；
高熔融指数聚丙烯的熔融指数为900g/10min；
其中，高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯，过氧化二异丙苯，正十二烷基硫醇，甲基丙烯酸羟乙酯，过硫酸钠的重量比为110:6:3:0.8:0.7:4:0.4。
所述增粘剂的制备方法为：将黄原胶，阳离子瓜尔胶，海藻多糖混合均匀后置于密闭容器中，将密闭容器抽真空至真空度为200Pa后通入氧气，控制密闭容器内氧气的气体压力为90kPa，然后将密闭容器的温度控制到65℃，在 65℃下处理45min后得到增粘剂；
其中，黄原胶，阳离子瓜尔胶，海藻多糖的重量比为30:20:6。
4.制备初级SM无纺布：将熔喷无纺布原料进行加热熔融，熔体过滤，熔体分配后由模头上的喷丝孔挤出，使用热风牵伸得到熔喷纤维，将熔喷纤维喷覆于第2步制备的纺粘无纺布上进行成网，得到初级SM无纺布；
所述加热熔融过程中螺杆区的温度分别为205℃,215℃,235℃；
所述溶体过滤过程中的过滤器温度为235℃；
所述熔体分配过程中的计量泵温度为235℃，转速为30rpm；
所述热风牵伸过程中的风温为210℃，转速为710rpm；
所述成网速度为27rpm；
所述喷丝孔的孔径为0.55mm；
所述熔喷纤维的纤维直径为12μm。
5.后处理：在45℃下对初级SM无纺布表面喷淋活性液，控制活性液的使用量为60g/m2，喷淋结束后在45℃下烘干，得到SM无纺布；
所述活性液的组成，按重量份计，包括：110份去离子水，9份麦芽糊精，6份三聚磷酸钠，3份十二烷基硫酸钠，0.5份聚二烯丙基二甲基氯化铵。
本实施例在制备过程中未出现断布情况。
对比例1
采用实施例1所述的屋顶防滑用SM无纺布的制备方法，其不同之处在于:在第1步制备纺粘无纺布原料步骤中使用六方氮化硼粉末代替增强剂。
本对比例在第4步制备初级SM无纺布过程中出现了断布情况。
对比例2
采用实施例1所述的屋顶防滑用SM无纺布的制备方法，其不同之处在于:在第1步制备纺粘无纺布原料步骤中使用聚乙烯醇2488代替粘性剂。
本对比例在制备过程中未出现断布情况。
对比例3
采用实施例1所述的屋顶防滑用SM无纺布的制备方法，其不同之处在于:在第3步制备熔喷无纺布原料步骤中省略改性增容剂的加入。
本对比例在第4步制备初级SM无纺布过程中出现了断布情况。
对比例4
采用实施例1所述的屋顶防滑用SM无纺布的制备方法，其不同之处在于:省略第5步后处理。
本对比例在制备过程中未出现断布情况。
将实施例1-3和对比例1-3制备的屋顶防滑用SM无纺布置于温度为38℃，湿度85％下静置10天，20天，30天，60天，90天后统计分层情况，统计结果如下：
对实施例1-3和对比例1-3制备的屋顶防滑用SM无纺布的克重，孔隙率，纤维细度，透气量，横向强力，纵向强力，厚度，摩擦系数进行测试，测试结果如下：
除非另有说明，本发明中所采用的百分数均为质量百分数。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明提供了一种屋顶防滑用SM无纺布的制备方法，制备得到纺粘无纺布原料。本发明能够避免SM无纺布在结合时不能完全粘合在一起，容易分层的问题，还能够解决高速生产过程中容易出现断布的问题，同时还能够提高SM无纺布的耐磨性，强度和硬挺度，并且制备的SM无纺布生产成本低，易回收，环保性能好。本发明在屋顶材料领域具有广阔的应用前景及良好的工业实用性。

Claims (10)

  1. 一种屋顶防滑用SM无纺布的制备方法，其特征在于，包括制备纺粘无纺布原料，制备纺粘无纺布，制备熔喷无纺布原料，制备初级SM无纺布，后处理；
    所述制备纺粘无纺布原料，将低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙烯醇，增强剂，粘性剂，纳米二氧化钛混合均匀后得到纺粘无纺布原料；
    所述后处理，在40-45℃下对初级SM无纺布表面喷淋活性液，控制活性液的使用量为50-60g/m2，喷淋结束后在40-45℃下烘干，得到SM无纺布；
    所述活性液的组成，按重量份计，包括：100-110份去离子水，7-9份麦芽糊精，5-6份三聚磷酸钠，2-3份十二烷基硫酸钠，0.2-0.5份聚二烯丙基二甲基氯化铵。
  2. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述低熔融指数聚丙烯的熔融指数为25-35g/10min；所述高熔融指数聚丙烯的熔融指数为800-900g/10min。
  3. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述制备纺粘无纺布原料步骤中低熔融指数聚丙烯，高熔融指数聚丙烯，海藻酸钠，抗氧剂1010，硬脂酸锌，紫外线吸收剂UV-531，聚乙二醇6000，增强剂，粘性剂，纳米二氧化钛的重量比为120-130:7-9:3-5:0.5-0.7:2-4:1-2:6-8:7-9:3-4:2-4。
  4. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述增强剂的制备方法为：将六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠置于球磨机中进行球磨，控制球磨时的球料比为20-25:1，球磨转速为200-300rpm，球磨时的温度为60-65℃，球磨时间为20-30min，球磨结束后得到初级增强剂，将初级增强剂，将初级增强剂进行真空加热处理，控制真空加热处理的真空度为100-120Pa，温度为70-80℃，真空加热处理结束得到增强剂；
    其中，六方氮化硼粉末，轻质碳酸钙，十六烷基三甲基溴化铵，六偏磷酸钠的重量比为20-22:8-10:3-5:7-10。
  5. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述粘性剂的制备方法为：将聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺加入去离子水中，在60-65℃下以200-240rpm的搅拌速度搅拌40-50min后进行喷雾干燥，控制喷雾干燥的进风温度为140-160℃，出风温度为60-70℃，真空喷雾干燥结束得到粘性剂；
    所述阳离子聚丙烯酰胺的分子量为500-600万，离子度为15-20％；
    其中，聚乙烯醇2488，环糊精，羟乙基纤维素，阳离子聚丙烯酰胺，去离子水的重量比为30-35:3-4:5-7:1-3:50-55。
  6. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述制备纺粘无纺布，将纺粘无纺布原料加入混料装置中，经熔融挤压、熔体过滤、模头喷丝、铺网、热轧、上液、烘干、卷绕收卷、分切，得到纺粘无纺布；
    所述模头喷丝步骤中的风箱压力为2800-3000Pa，风机转速比为80-82％，上下冷风的温度为22-25℃；
    所述热轧处理步骤中的花辊温度为155-160℃，光辊温度为140-145℃，网带速度为630-650m/min，热轧压力为80-90daN/cm。
  7. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述制备熔喷无纺布原料，将聚丙烯，聚丁烯对苯二甲酸酯，聚乙烯，纳米二氧化硅，椰油酸单异丙醇酰胺，改性增容剂，增粘剂混合均匀后得到熔喷无纺布原料。
  8. 根据权利要求7所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述改性增容剂的制备方法为：将高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯加入搅拌机中，控制搅拌机的转速为250-280rpm，搅拌机的温度为2-5℃，在2-5℃下低温处理20-25min后，加入过氧化二异丙苯，正十二烷基硫醇，然后以1-1.2℃/min的升温速度升温至40-45℃，在40-45℃下搅拌15-20min，加 入甲基丙烯酸羟乙酯，过硫酸钠，然后以0.8-1℃/min的升温速度升温至50-55℃，在50-55℃下搅拌20-25min，自然恢复至室温，得到改性增容剂；
    高熔融指数聚丙烯的熔融指数为800-900g/10min；
    其中，高熔融指数聚丙烯，马来酸酐，甲基丙烯酸甲酯，过氧化二异丙苯，正十二烷基硫醇，甲基丙烯酸羟乙酯，过硫酸钠的重量比为100-110:5-6:2-3:0.5-0.8:0.6-0.7:3-4:0.2-0.4。
  9. 根据权利要求7所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述增粘剂的制备方法为：将黄原胶，阳离子瓜尔胶，海藻多糖混合均匀后置于密闭容器中，将密闭容器抽真空至真空度为100-200Pa后通入氧气，控制密闭容器内氧气的气体压力为70-90kPa，然后将密闭容器的温度控制到60-65℃，在60-65℃下处理40-45min后得到增粘剂；
    其中，黄原胶，阳离子瓜尔胶，海藻多糖的重量比为25-30:15-20:4-6。
  10. 根据权利要求1所述的屋顶防滑用SM无纺布的制备方法，其特征在于，所述制备初级SM无纺布，将熔喷无纺布原料进行加热熔融，熔体过滤，熔体分配后由模头上的喷丝孔挤出，使用热风牵伸得到熔喷纤维，将熔喷纤维喷覆于纺粘无纺布上进行成网，得到初级SM无纺布；
    所述加热熔融过程中螺杆区的温度分别为200-205℃,210-215℃,230-235℃；
    所述溶体过滤过程中的过滤器温度为230-235℃；
    所述熔体分配过程中的计量泵温度为230-235℃，转速为25-30rpm；
    所述热风牵伸过程中的风温为200-210℃，转速为700-710rpm；
    所述成网速度为25-27rpm；
    所述喷丝孔的孔径为0.45-0.55mm；
    所述熔喷纤维的纤维直径为10-12μm。
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