WO2014032341A1 - 一种水凝胶垫的加工工艺 - Google Patents

一种水凝胶垫的加工工艺 Download PDF

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Publication number
WO2014032341A1
WO2014032341A1 PCT/CN2012/081601 CN2012081601W WO2014032341A1 WO 2014032341 A1 WO2014032341 A1 WO 2014032341A1 CN 2012081601 W CN2012081601 W CN 2012081601W WO 2014032341 A1 WO2014032341 A1 WO 2014032341A1
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WO
WIPO (PCT)
Prior art keywords
hydrogel
solution
monomer
pure water
initiator
Prior art date
Application number
PCT/CN2012/081601
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English (en)
French (fr)
Chinese (zh)
Inventor
顾磊
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上海捷儿金保温制品有限公司
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Publication of WO2014032341A1 publication Critical patent/WO2014032341A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F2007/0098—Heating or cooling appliances for medical or therapeutic treatment of the human body ways of manufacturing heating or cooling devices for therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0203—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor
    • A61F2007/0215—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor containing liquids other than water
    • A61F2007/0219—Gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate

Definitions

  • the invention relates to a processing technology of a mat, in particular to a processing technology of a hydrogel mat.
  • Hydrogel is a new type of functional polymer material with three-dimensional network structure. It can be polymerized and cross-linked by one or more monomers through a chemical initiator. The hydrogel can swell in water and maintain a certain moisture. It is insoluble in water, has high water content, fast swelling, softness, rubbery consistency and good biocompatibility. It has good responsiveness to external stimuli such as temperature and electric field, so hydrogel It is widely used in various fields. For example, a hydrogel can be used to form a sheet-like hydrogel pad with a wrap, which is a hydrogel pad. It has excellent heatstroke resistance and is favored by people.
  • the high specific heat capacity of the water in the hydrogel absorbs a large amount of surface heat, and then uses the three-dimensional network structure of the hydrophilic gel to rapidly dissipate heat, thereby achieving a physical cooling effect to achieve a cool effect.
  • the Chinese Patent Application No. CN101305877 entitled “Gel Pad and Its Production Method” discloses a gel pad and a production method thereof, which in turn comprises the following steps: preparing materials, making bags, filling orders Body solution, heat curing, inspection and packaging. There are certain defects and shortcomings in the production method of the gel pad. In the heat curing step, it is necessary to physically warm by two or more layers of heating plates, that is, the bag containing the monomer solution is placed between the two heating plates.
  • the internal solution is brought to a polymerization temperature to form a hydrogel in the bag, and the gel pad in the two or more layers of the heating plate is press-set using a device that is pneumatically or hydraulically freely squeezing and squeezing.
  • a device that is pneumatically or hydraulically freely squeezing and squeezing.
  • heating of the heating plate generates a large amount of energy consumption, and it takes a period of time to use the heating plate to bring the monomer solution at normal temperature to the polymerization temperature, and the production efficiency is low, so the use of two or more layers of heating plates is performed.
  • the process of physical heating and pressurization to produce a gel pad is complicated in operation and high in cost, and is not suitable for new industrial production.
  • the object of the present invention is to provide a processing technique for a hydrogel pad which is simple in operation, high in production efficiency, and suitable for industrial production, in view of the deficiencies of the prior art.
  • Bag making cutting the surface material suitable for the outer dimensions and material requirements of the hydrogel pad.
  • the surface material refers to a composite material in which the inner layer is plastic and the outer layer is a textile fabric, and a high-frequency or electric heating mold device is used.
  • the inner plastic of the surface layer material is heated and fused to form a closed bag with a perfusion opening;
  • a monomer, a pure water, a crosslinking agent, a colloidal softening regulator, and an initiator are mixed to prepare a solution A,
  • a monomer, a pure water, a crosslinking agent, a colloidal softening regulator, and a normal temperature polymerization initiator are mixed to prepare a solution C.
  • a polymer, a pure water, and an antifoaming agent are mixed to prepare a solution E.
  • the solution E and the solution F are uniformly mixed, and the uniformly mixed solution is filled into the bag by a quantitative liquid filling machine;
  • the curing is to feed the filled bag into a conveyor belt type setting device.
  • the bag is polymerized and shaped during the transmission in the conveyor belt type setting device. After the initiator and the normal temperature polymerization initiator in the mixed solution in the bag are exposed to room temperature for 5-120 minutes, a chemical reaction occurs and heat is released, and the solution in the bag is heated to reach the polymerization temperature. Polymerization occurs and cross-linking produces a hydrogel.
  • the weight ratio between the monomer, the pure water, the crosslinking agent, the colloidal softening regulator, the initiator and the normal temperature polymerization initiator is: 5-20% of the monomer, 60-85% of the pure water, and the crosslinking agent 0.1-10%, colloidal softening regulator 5-30%, initiator 0.1-10%, normal temperature polymerization initiator 0.1-10%;
  • the weight ratio of the high molecular polymer, the pure water, the crosslinking agent and the antifoaming agent is: 1-15% of the high molecular polymer, 75-90% of the pure water, 1-10% of the crosslinking agent, and elimination.
  • Foaming agent 0.01-1%;
  • the preferred weight ratio between the monomer, pure water, crosslinking agent, colloidal softening regulator, initiator and room temperature polymerization initiator is: 12-18% of monomer, 60-80% of pure water, cross-linking Agent 0.2-5%, colloidal softening regulator 5-20%, initiator 0.2-5%, room temperature polymerization initiator 0.2-5%;
  • the beneficial effects produced by the present invention are: After mixing with a normal temperature polymerization initiator and an initiator in a bag, a chemical reaction can occur at room temperature and heat is released.
  • the formation of the hydrogel in the bag is achieved by bringing the mixed solution in the bag to the polymerization temperature, that is, the chemical heating promotes the formation of the hydrogel. This step does not require additional heating by the external heat source, thereby reducing the production energy consumption; using the conveyor belt type setting device is The hydrogel pad is press-formed, and the conveyor belt type sizing device can be continuously and efficiently embossed and shaped, has simple operation and large working capacity, thereby reducing production cost and improving production efficiency.
  • the track in the conveyor belt sizing device can be made into a track with various lines, and the hydrogel pad that is pressed and shaped can also have various lines.
  • the obtained hydrogel pad is practical and can be customized according to different specifications.
  • the product has good ventilation, heat dissipation performance, soft and comfortable, balanced and durable, and durable.
  • Figure 1 is a schematic view of a conveyor belt type sizing device of the present invention.
  • the conveyor belt type sizing device consists of two layers of upper and lower tracks.
  • the unpolymerized product passes between the two layers of crawler belts.
  • the product is polymerized and shaped when it is driven in the track.
  • Bag making The surface material suitable for the outer dimensions and material requirements of the hydrogel pad is cut, and the high-frequency or electric heating mold device is used to fuse the inner plastic layer of the surface layer material to form a closed bag with a perfusion opening.
  • the number of perfusion ports can be one or two and ribs can be added in the middle of the bag as needed.
  • the surface material refers to a composite material in which the inner layer is a plastic layer and the outer layer is a woven fabric, such as a composite material of PVC and nylon cloth, a composite material of PE and nylon, a composite material of PU and polyester cotton cloth, and the like.
  • the monomer may be an acidic or neutral or basic monomer, or a combination of any two or several of them, the acidic monomer means an acrylic acid derivative or crotonic acid, etc., the neutral single
  • the body means hydroxyalkyl methacrylate or methyl methacrylate or acrylamide or N-vinyl pyrrolidone or an acrylate derivative, etc.
  • the basic monomer means an aminoethyl methacrylate derivative or ethylene. Pyridine and the like.
  • the high molecular polymer means polyvinyl alcohol.
  • the crosslinking agent may be an ethylenic monomer such as acrylic acid, hydroxyethyl acrylate, ethylene glycol dimethacrylate, or N,N-methylenebisacrylamide; or a metal organic compound such as Zinc acetate, titanate, etc.; or polyols such as ethylene glycol; or polyamines such as ethylenediamine; or glycidyl ethers such as polypropylene glycol glycidyl ether.
  • ethylenic monomer such as acrylic acid, hydroxyethyl acrylate, ethylene glycol dimethacrylate, or N,N-methylenebisacrylamide
  • a metal organic compound such as Zinc acetate, titanate, etc.
  • polyols such as ethylene glycol
  • polyamines such as ethylenediamine
  • glycidyl ethers such as polypropylene glycol glycidyl ether.
  • the colloidal softening regulator is propylene glycol or glycerol.
  • the initiator may be a peroxide such as ammonium persulfate or potassium persulfate; or an azo compound or a redox system.
  • the normal temperature polymerization initiator is sodium hydrogen sulfite or ⁇ -dimethylaminopropionitrile or N, N, N ', N ' - Tetramethylethylenediamine.
  • the normal temperature polymerization initiator refers to a chemical reaction with the initiator at room temperature, releasing heat, causing the solution in the bag to polymerize and cross-link to form a hydrogel.
  • the antifoaming agent is tributyl phosphate.
  • the preferred weight ratio between the monomer, pure water, crosslinking agent, colloidal softening regulator, initiator and room temperature polymerization initiator is: 12-18% of monomer, 60-80% of pure water, cross-linking Agent 0.2-5%, colloidal softening regulator 5-20%, initiator 0.2-5%, room temperature polymerization initiator 0.2-5%;
  • the weight ratio of the high molecular polymer, the pure water, the crosslinking agent and the antifoaming agent is: 1-15% of the high molecular polymer, 75-90% of the pure water, 1-10% of the crosslinking agent, and elimination.
  • Foaming agent 0.01-1%;
  • Curing The filled bag is sent to a conveyor belt type setting device for pressurization and setting.
  • the initiator in the bag and the normal temperature polymerization initiator start to react at room temperature for 10-30 minutes to start a chemical reaction, that is, a redox reaction generates a radical, and releases heat, and the solution in the bag is heated to 50-60 o C, the bag Polymerization occurs within and crosslinks to form a hydrogel.
  • the room temperature means 20-30 o C.
  • the polymer and the cross-linking agent in the bag begin to react chemically after being exposed to room temperature for 10-30 min, and release heat.
  • the solution in the bag is heated to 50-60 o C, and a cross-linking reaction occurs in the bag to form a hydrogel. gum.
  • the conveyor belt type sizing device consists of two layers of upper and lower tracks.
  • the width of the door can be customized according to the size of the hydrogel pad.
  • the height interval between the tracks can be adjusted according to the thickness of the hydrogel pad.
  • the length of the track is 30-50 meters.
  • the unpolymerized bag is placed in the middle of the two-layer track to allow the bag to be polymerized when it is driven in the track.
  • the crawler belt may be provided with a grain, such as a pattern or a lattice or a twill.
  • a grain such as a pattern or a lattice or a twill.
  • the invention utilizes the normal temperature polymerization initiator and the initiator to mix in the bag, and can chemically react and release heat at room temperature.
  • the formation of the hydrogel in the bag is achieved by bringing the mixed solution in the bag to the polymerization temperature, that is, the chemical heating promotes the formation of the hydrogel. This step does not require additional heating by the external heat source, thereby reducing the production energy consumption; using the conveyor belt type setting device is
  • the hydrogel pad is press-formed, and the conveyor belt type sizing device can be continuously and efficiently embossed and shaped, has simple operation and large working capacity, thereby reducing production cost and improving production efficiency.
  • the track in the conveyor belt sizing device can be made into a track with various lines, and the hydrogel pad that is pressed and shaped can also have various lines.
  • the obtained hydrogel pad is practical and can be customized according to different specifications.
  • the product has good ventilation, heat dissipation performance, soft and comfortable, balanced and durable, and durable.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Laminated Bodies (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
PCT/CN2012/081601 2012-08-27 2012-09-19 一种水凝胶垫的加工工艺 WO2014032341A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210306196.8A CN102860707B (zh) 2012-08-27 2012-08-27 一种水凝胶垫的加工工艺
CN201210306196.8 2012-08-27

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105860625A (zh) * 2016-05-25 2016-08-17 褚红芬 一种快速凝胶堵漏剂
US9861208B2 (en) 2013-06-07 2018-01-09 Mattress Development Company Of Delaware, Llc Multifunctional mattress systems
CN107627446A (zh) * 2017-10-20 2018-01-26 北京泊易行咨询有限公司 一种混凝土养护罩
CN114539560A (zh) * 2022-02-15 2022-05-27 中国科学院宁波材料技术与工程研究所 一种受损凝胶修复的方法
CN115813775A (zh) * 2021-09-17 2023-03-21 索肤兰化妆品(广州)有限公司 一种水凝胶体系工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105295076B (zh) * 2015-11-23 2017-12-12 安踏（中国）有限公司 一种凉感水凝胶及其制备方法、凉感面料及其制备方法
CN107613595A (zh) * 2017-09-30 2018-01-19 惠州市德力焊接设备有限公司 无火焰便携手持式感应加热器
CN114946935B (zh) * 2022-03-25 2024-02-06 浙江大学 一种基于水凝胶体系的1-mcp缓释保鲜剂及制备方法和应用

Citations (6)

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US3858379A (en) * 1970-06-09 1975-01-07 Us Army Process for making a polyvinyl alcohol gel support pad
JPH08182659A (ja) * 1994-12-28 1996-07-16 Sekisui Plastics Co Ltd 刺激電極用導電性高分子ゲル、そのゲルパッドおよびそれを用いた生体用電極
CN101305877A (zh) * 2008-07-09 2008-11-19 范立涛 凝胶垫及其生产方法
CN101632609A (zh) * 2008-07-25 2010-01-27 李金兴 固体状水凝胶袋
CN101700160A (zh) * 2009-07-31 2010-05-05 朱雪兵 一种夏季使用凉爽床垫及其制造方法
CN101779875A (zh) * 2009-01-19 2010-07-21 上海华拓家居用品有限公司 新型清凉装置

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US4138539A (en) * 1975-06-19 1979-02-06 American Cyanamid Company Process for water-soluble synthetic polymer in powder form
DE3208369A1 (de) * 1982-03-09 1983-09-22 Röhm GmbH, 6100 Darmstadt Verfahren zur herstellung einer w/oe-emulsion eines wasserloeslichen polymerisats
CA1268732A (en) * 1984-12-27 1990-05-08 Akira Yada Radiation-polymerizing water-soluble cast vinyl monomer layer and forming particles
DE60332750D1 (en) * 2002-10-02 2010-07-08 Coloplast As Hydrogel
CN101215350A (zh) * 2008-01-04 2008-07-09 东华大学 改性纳米复合水凝胶及其制备方法
CN102504117B (zh) * 2011-09-27 2013-10-30 浙江大学 一种高吸水率水凝胶及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858379A (en) * 1970-06-09 1975-01-07 Us Army Process for making a polyvinyl alcohol gel support pad
JPH08182659A (ja) * 1994-12-28 1996-07-16 Sekisui Plastics Co Ltd 刺激電極用導電性高分子ゲル、そのゲルパッドおよびそれを用いた生体用電極
CN101305877A (zh) * 2008-07-09 2008-11-19 范立涛 凝胶垫及其生产方法
CN101632609A (zh) * 2008-07-25 2010-01-27 李金兴 固体状水凝胶袋
CN101779875A (zh) * 2009-01-19 2010-07-21 上海华拓家居用品有限公司 新型清凉装置
CN101700160A (zh) * 2009-07-31 2010-05-05 朱雪兵 一种夏季使用凉爽床垫及其制造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9861208B2 (en) 2013-06-07 2018-01-09 Mattress Development Company Of Delaware, Llc Multifunctional mattress systems
CN105860625A (zh) * 2016-05-25 2016-08-17 褚红芬 一种快速凝胶堵漏剂
CN107627446A (zh) * 2017-10-20 2018-01-26 北京泊易行咨询有限公司 一种混凝土养护罩
CN115813775A (zh) * 2021-09-17 2023-03-21 索肤兰化妆品(广州)有限公司 一种水凝胶体系工艺
CN114539560A (zh) * 2022-02-15 2022-05-27 中国科学院宁波材料技术与工程研究所 一种受损凝胶修复的方法
CN114539560B (zh) * 2022-02-15 2024-03-05 中国科学院宁波材料技术与工程研究所 一种受损凝胶修复的方法

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CN102860707A (zh) 2013-01-09
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