CN109988515B - Aldehyde-free low-sensitivity medical adhesive tape base material and adhesive coating method - Google Patents
Aldehyde-free low-sensitivity medical adhesive tape base material and adhesive coating method Download PDFInfo
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- CN109988515B CN109988515B CN201910301689.4A CN201910301689A CN109988515B CN 109988515 B CN109988515 B CN 109988515B CN 201910301689 A CN201910301689 A CN 201910301689A CN 109988515 B CN109988515 B CN 109988515B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/02—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to polysaccharides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2405/00—Presence of polysaccharides
- C09J2405/006—Presence of polysaccharides in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2497/00—Presence of lignin
- C09J2497/006—Presence of lignin in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Materials For Medical Uses (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses an aldehyde-free low-sensitivity medical adhesive tape base material and a gluing method, and belongs to the field of medical adhesive tape materials. The adhesive tape base material is prepared from crop straws, fibrilia, sorbitol, sodium dodecyl sulfate, vinyl methacrylate, modified porous silicon dioxide, guar gum and other raw materials, and then the colorless transparent viscous liquid is prepared and coated on the adhesive tape base material, wherein the coating amount is 0.05-0.1 g/100cm2And finally drying and using medical adhesive tape. According to the invention, crop straws, hemp fibers, guar gum and other substances are used as main raw materials, so that the medical adhesive tape base material has good air permeability, and has the advantages of no stimulation, good biocompatibility and capability of maintaining the adhesive force for a long time; and the coating adhesive has little adhesive consumption, does not contain formaldehyde, and can ensure air permeability while meeting the viscosity after being compounded with a base material.
Description
Technical Field
The invention relates to the technical field of medical adhesive tape production, in particular to an aldehyde-free low-sensitivity medical adhesive tape base material and a gluing method.
Background
Medical tapes have been used in a ubiquitous manner. The infusion tube is required to be transfused in products used in various links of operations, wound and incontinence nursing, monitoring, diagnosis and the like, in operations or treatment of diseases, and the infusion tube is required to be fixed on a human body by using a medical adhesive tape. As described above, there is a need for a medical tape that has good air permeability, no irritation, biocompatibility, and can maintain adhesion for a long period of time, and particularly, a medical tape having the above excellent properties is required for some people with allergic constitution or infants with delicate skin. At present, the common medical adhesive tape is punched to obtain good air permeability, special sawtooth processing is carried out on the edge of a base material, the processing process is complex, and the air permeability effect is not obvious.
The air permeability is a main factor influencing the allergy of the adhesive tape, and because the adhesive tape with poor air permeability is difficult to discharge sweat, the sweat is easy to stimulate the skin to cause allergy; in addition, the medical adhesive tape has large adhesive consumption, causes great stimulation to skin and is easy to cause skin allergy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an aldehyde-free low-sensitivity medical adhesive tape base material and a gluing method.
The invention is realized by the following method, and the specific operation steps comprise:
an aldehyde-free low-sensitivity medical adhesive tape base material is characterized in that: the medical adhesive tape base material comprises the following raw materials in parts by weight: 25-30 parts of crop straw, 30-35 parts of fibrilia, 0.1-0.3 part of sorbitol, 1-3 parts of sodium dodecyl sulfate, 5-8 parts of vinyl methacrylate, 3-5 parts of propylene glycol, 0.1-0.3 part of ammonium persulfate, 5-10 parts of modified porous silicon dioxide and 3-5 parts of guar gum;
the preparation steps of the medical adhesive tape base material are as follows:
(1) mixing crop straws, fibrilia and water, pulping, adjusting the pulping degree to 9-10 DEG SR, adjusting the pH value to 8.5-9.0, heating to 60 ℃, performing high-temperature treatment, and adding sorbitol and sodium dodecyl sulfate into the mixed slurry after the treatment for 30-40 min;
the crop straws are two or more than two of wheat straws, rice straws, cotton stalks, bagasse and corn stalks; the fibrilia is a mixture of two of flax, sisal and ramie.
(2) Stirring and mixing, adding ammonium persulfate under the protection of nitrogen, then adding vinyl methacrylate, propylene glycol, modified porous silicon dioxide and guar gum, stirring and reacting for 3-5 h, drying after reaction to obtain a dried substance, twisting into yarns according to the prior art, warping, drawing through, and weaving to obtain the pretreated tape base material.
The preparation method of the modified porous silicon dioxide comprises the following steps: weighing porous silicon dioxide powder, firstly placing the powder in a grinding machine for grinding for 30-40 min, mixing the ground porous silicon dioxide with acrylic acid, stirring, carrying out radiation crosslinking in air atmosphere, and crosslinking to obtain the modified porous silicon dioxide.
The size of the pores of the porous silicon dioxide is 20-120 nanometers; the mass ratio of the porous silica to the acrylic acid is 20: 1 to 3.
The gluing method of the aldehyde-free low-sensitivity medical adhesive tape base material comprises the following steps:
(1) adding sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and 2-ethylhexyl acrylate as monomers, a solvent and an initiator dibenzoyl peroxide into a reaction kettle with a stirrer and a reflux condenser;
(2) heating to 40-50 ℃ under the protection of nitrogen for polymerization reaction, and reacting for 2-3 h to obtain colorless transparent viscous liquid with the viscosity of 3000-5000 mPa & s;
(3) coating the prepared medical pressure-sensitive adhesive on an adhesive tape base material, wherein the coating amount is 0.05-0.1 g/100cm2And finally drying and using medical adhesive tape.
The mass ratio of the sodium carboxymethyl starch to the glycidyl methacrylate to the methacrylic acid to the 2-ethylhexyl acrylate monomer is 1:1:1: 1; the solvent is ethyl acetate; the initiator is dibenzoyl peroxide.
Compared with the prior art, the invention has the beneficial effects that:
(1) all prepare medical adhesive tape substrate earlier in the tradition, then at the substrate coating adhesive, because can cover the surface of substrate at the adhesive in coating process, fill in the hole, lead to adhesive tape substrate gas permeability poor, too much adhesive is big to skin irritability moreover, arouses situations such as skin allergy, redness. According to the invention, through selection and adjustment of the formula, the formaldehyde-free low-sensitivity medical adhesive tape base material prepared firstly has certain self-adhesion, has excellent air permeability, and can greatly reduce the time of later-stage adhesives, so that when the adhesive is coated in later stage of the application, only 10-20% of the traditional amount needs to be coated, and the gap is not covered enough, so that the finally prepared medical adhesive tape can meet the requirement of viscosity and has good air permeability.
(2) The medical adhesive tape base material has good air permeability by adopting crop straws, fibrilia, guar gum and other substances as main raw materials, and has the advantages of no stimulation, biocompatibility and long-term retention of adhesive force;
(3) the porous silicon dioxide powder is added, so that the air permeability of the base material is remarkably improved, the viscosity of the base material can be effectively enhanced, the using amount of the coating adhesive is further reduced, the adhesive is safe and environment-friendly, formaldehyde is not contained, and after the adhesive is compounded with the base material for use, the air permeability can be ensured while the adhesiveness is met, the skin can be kept fresh and breathable, and the allergy phenomenon is reduced.
Detailed Description
Example 1
Weighing the following raw materials in parts by weight: 30 parts of crop straw, 35 parts of fibrilia, 0.3 part of sorbitol, 1 part of sodium dodecyl sulfate, 5 parts of vinyl methacrylate, 5 parts of propylene glycol, 0.3 part of ammonium persulfate, 10 parts of modified porous silicon dioxide and 5 parts of guar gum;
the preparation method of the modified porous silicon dioxide comprises the following steps: weighing porous silicon dioxide powder, firstly placing the powder in a grinding machine for grinding for 30-40 min, mixing the ground porous silicon dioxide with acrylic acid, stirring, carrying out radiation crosslinking in air atmosphere, and crosslinking to obtain the modified porous silicon dioxide. The size of the pores of the porous silicon dioxide is 20-120 nanometers; the mass ratio of the porous silica to the acrylic acid is 20: 3.
firstly, mixing crop straws, fibrilia and water, pulping, adjusting the pulping degree to 9-10 DEG SR, adjusting the pH value to 9.0 after pulping, heating to 60 ℃, performing high-temperature treatment, and adding sorbitol and sodium dodecyl sulfate into the mixed slurry after the treatment for 40 min; stirring and mixing, adding ammonium persulfate under the protection of nitrogen, then adding vinyl methacrylate, propylene glycol, modified porous silicon dioxide and guar gum, stirring and reacting for 5 hours, drying after reaction to obtain a dried substance, twisting into yarns according to the prior art, warping, passing through, and weaving to obtain the pretreated tape base material.
The gluing method of the aldehyde-free low-sensitivity medical adhesive tape base material comprises the following steps:
(1) adding sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and 2-ethylhexyl acrylate as monomers, a solvent and an initiator dibenzoyl peroxide into a reaction kettle with a stirrer and a reflux condenser;
(2) heating to 50 ℃ under the protection of nitrogen for polymerization reaction, and reacting for 3 hours to obtain colorless transparent viscous liquid with the viscosity of about 5000mPa & s;
(3) coating the prepared medical pressure-sensitive adhesive on an adhesive tape base material, wherein the coating amount is 0.1g/100cm2And finally drying and using medical adhesive tape. The mass ratio of the sodium carboxymethyl starch to the glycidyl methacrylate to the methacrylic acid to the 2-ethylhexyl acrylate monomer is 1:1:1: 1; the solvent is ethyl acetate; the initiator is dibenzoyl peroxide.
Example 2
Weighing the following raw materials in parts by weight: 25 parts of crop straw, 35 parts of fibrilia, 0.1 part of sorbitol, 1 part of sodium dodecyl sulfate, 5 parts of vinyl methacrylate, 3 parts of propylene glycol, 0.1 part of ammonium persulfate, 5 parts of modified porous silicon dioxide and 3 parts of guar gum;
the preparation method of the modified porous silicon dioxide comprises the following steps: weighing porous silicon dioxide powder, firstly placing the powder in a grinding machine for grinding for 30-40 min, mixing the ground porous silicon dioxide with acrylic acid, stirring, carrying out radiation crosslinking in air atmosphere, and crosslinking to obtain the modified porous silicon dioxide. The size of the pores of the porous silicon dioxide is 20-120 nanometers; the mass ratio of the porous silica to the acrylic acid is 20: 1.
firstly, mixing crop straws, fibrilia and water, pulping, adjusting the pulping degree to 9-10 DEG SR, adjusting the pH value to 8.5 after pulping, heating to 60 ℃, performing high-temperature treatment, and adding sorbitol and sodium dodecyl sulfate into the mixed slurry after treating for 30 min; stirring and mixing, adding ammonium persulfate under the protection of nitrogen, then adding vinyl methacrylate, propylene glycol, modified porous silicon dioxide and guar gum, stirring and reacting for 3 hours, drying after reaction to obtain a dried substance, twisting into yarn according to the prior art, warping, drawing through, and weaving to obtain the pretreated tape base material.
The gluing method of the aldehyde-free low-sensitivity medical adhesive tape base material comprises the following steps:
(1) adding sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and 2-ethylhexyl acrylate as monomers, a solvent and an initiator dibenzoyl peroxide into a reaction kettle with a stirrer and a reflux condenser;
(2) heating to 40 ℃ under the protection of nitrogen for polymerization reaction, and reacting for 2 hours to obtain colorless transparent viscous liquid with the viscosity of about 3000mPa & s;
(3) coating the prepared medical pressure-sensitive adhesive on an adhesive tape base material, wherein the coating amount is 0.05g/100cm2And finally drying and using medical adhesive tape. The mass ratio of the sodium carboxymethyl starch to the glycidyl methacrylate to the methacrylic acid to the 2-ethylhexyl acrylate monomer is 1:1:1: 1; the solvent is ethyl acetate; the initiator is dibenzoyl peroxide.
Example 3
Weighing the following raw materials in parts by weight: 27 parts of crop straw, 33 parts of fibrilia, 0.2 part of sorbitol, 2 parts of sodium dodecyl sulfate, 7 parts of vinyl methacrylate, 4 parts of propylene glycol, 0.2 part of ammonium persulfate, 7 parts of modified porous silicon dioxide and 4 parts of guar gum;
the preparation method of the modified porous silicon dioxide comprises the following steps: weighing porous silicon dioxide powder, firstly placing the powder in a grinding machine for grinding for 35min, mixing the ground porous silicon dioxide with acrylic acid, stirring, carrying out radiation crosslinking in air atmosphere, and crosslinking to obtain the modified porous silicon dioxide. The pore size of the porous silica is 100 nm; the mass ratio of the porous silica to the acrylic acid is 20: 2.
firstly, mixing crop straws, fibrilia and water, pulping, adjusting the pulping degree to 9-10 DEG SR, adjusting the pH value to 8.7 after pulping, heating to 60 ℃, performing high-temperature treatment, and adding sorbitol and sodium dodecyl sulfate into the mixed slurry after 35min of treatment; stirring and mixing, adding ammonium persulfate under the protection of nitrogen, then adding vinyl methacrylate, propylene glycol, modified porous silicon dioxide and guar gum, stirring and reacting for 4 hours, drying after reaction to obtain a dried substance, twisting into yarns according to the prior art, warping, passing through, and weaving to obtain the pretreated tape base material.
The gluing method of the aldehyde-free low-sensitivity medical adhesive tape base material comprises the following steps:
(1) adding sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and 2-ethylhexyl acrylate as monomers, a solvent and an initiator dibenzoyl peroxide into a reaction kettle with a stirrer and a reflux condenser;
(2) heating to 45 ℃ under the protection of nitrogen for polymerization reaction, and reacting for 2.5 hours to obtain colorless transparent viscous liquid with the viscosity of about 4000mPa & s;
(3) the prepared medical pressure-sensitive adhesive is coated on an adhesive tape base material, and the coating amount is 0.07g/100cm2And finally drying and using medical adhesive tape. The mass ratio of the sodium carboxymethyl starch to the glycidyl methacrylate to the methacrylic acid to the 2-ethylhexyl acrylate monomer is 1:1:1: 1; the solvent is ethyl acetate; the initiator is dibenzoyl peroxide.
Comparative example 1
Comparative example 1 is different from example 1 in that: the remaining raw materials and steps were the same as in example 1, except that porous silica was not added, to prepare a medical adhesive tape.
Comparative example 2
Comparative example 2 differs from example 1 in that: the base material was not added with vinyl methacrylate, and the remaining raw materials and steps were the same as in example 1, to prepare a medical adhesive tape.
Comparative example 3
Comparative example 3 differs from example 1 in that: the coating amount of the medical pressure-sensitive adhesive coated on the base material of the adhesive tape is 2.0g/100cm2The other raw materials and steps were the same as in example 1, and a medical adhesive tape was prepared.
Comparative example 4
Comparative example 4 is different from example 1 in that: the guar gum is replaced by sodium alginate, and the rest raw materials and steps are the same as those in example 1, so that the medical adhesive tape is prepared.
The medical adhesive tape prepared in the above example was subjected to performance test, and the test results are shown in table 1:
measurement of peeling force: a sample having a width of 25mm and a length of 200mm was prepared, adhered to a clean stainless steel test plate, rolled back and forth three times with a 2kg weight rubber roller, then left to stand at a temperature of 23 ℃ plus or minus 2 ℃ and a relative humidity of 65% plus or minus 5% for 30 minutes, and peeled off at a speed of 300mm/min with a BLD-30S electronic peel tester.
Claims (4)
1. An aldehyde-free low-sensitivity medical adhesive tape is characterized in that: the base material of the medical adhesive tape comprises the following raw materials in parts by weight: 25-30 parts of crop straw, 30-35 parts of fibrilia, 0.1-0.3 part of sorbitol, 1-3 parts of sodium dodecyl sulfate, 5-8 parts of vinyl methacrylate, 3-5 parts of propylene glycol, 0.1-0.3 part of ammonium persulfate, 5-10 parts of modified porous silicon dioxide and 3-5 parts of guar gum;
the preparation method of the modified porous silicon dioxide comprises the following steps: weighing porous silicon dioxide powder, firstly placing the porous silicon dioxide powder in a grinding machine for grinding for 30-40 min, mixing the ground porous silicon dioxide with acrylic acid, stirring, carrying out radiation crosslinking in an air atmosphere, and crosslinking to obtain modified porous silicon dioxide;
the preparation steps of the medical adhesive tape base material are as follows:
(1) mixing crop straws, fibrilia and water, pulping, adjusting the pulping degree to 9-10 DEG SR, adjusting the pH value to 8.5-9.0, heating to 60 ℃, performing high-temperature treatment, and adding sorbitol and sodium dodecyl sulfate into the mixed slurry after the treatment for 30-40 min;
(2) stirring and mixing, adding ammonium persulfate under the protection of nitrogen, then adding vinyl methacrylate, propylene glycol, modified porous silicon dioxide and guar gum, stirring and reacting for 3-5 h, drying after reaction to obtain a dried substance, and then twisting into yarns, warping, drawing in through and weaving according to the prior art to obtain the medical adhesive tape base material;
the preparation method of the medical adhesive tape comprises the following steps:
(1) adding sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and 2-ethylhexyl acrylate as monomers, a solvent and an initiator dibenzoyl peroxide into a reaction kettle with a stirrer and a reflux condenser;
(2) heating to 40-50 ℃ under the protection of nitrogen for polymerization reaction, and reacting for 2-3 h to obtain colorless transparent viscous liquid with the viscosity of 3000-5000 mPa & s;
(3) coating the prepared colorless transparent viscous liquid on an adhesive tape base material, wherein the coating amount is 0.05-0.1 g/100cm2And finally drying to obtain the medical adhesive tape.
2. The aldehyde-free hypoallergenic medical tape according to claim 1, characterized in that: the crop straws are two or more than two of wheat straws, rice straws, cotton stalks, bagasse and corn stalks; the fibrilia is a mixture of two of flax, sisal and ramie.
3. The aldehyde-free hypoallergenic medical tape according to claim 1, characterized in that: the size of the pores of the porous silicon dioxide is 20-120 nanometers; the mass ratio of the porous silica to the acrylic acid is 20: 1 to 3.
4. The aldehyde-free hypoallergenic medical tape according to claim 1, characterized in that: the mass ratio of the sodium carboxymethyl starch to the glycidyl methacrylate to the methacrylic acid to the 2-ethylhexyl acrylate monomer is 1:1:1: 1; the solvent is ethyl acetate; the initiator is dibenzoyl peroxide.
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| CN201910301689.4A CN109988515B (en) | 2019-04-15 | 2019-04-15 | Aldehyde-free low-sensitivity medical adhesive tape base material and adhesive coating method |
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| CN201910301689.4A CN109988515B (en) | 2019-04-15 | 2019-04-15 | Aldehyde-free low-sensitivity medical adhesive tape base material and adhesive coating method |
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| CN109988515B true CN109988515B (en) | 2021-08-06 |
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|---|---|---|---|---|
| CN103958598A (en) * | 2011-12-07 | 2014-07-30 | 乐金华奥斯有限公司 | Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material |
| CN106012658A (en) * | 2016-05-27 | 2016-10-12 | 浙江华邦特种纸业有限公司 | Breathable medical adhesive tape base material and manufacturing method thereof |
| CN108659722A (en) * | 2018-05-14 | 2018-10-16 | 苏州盛达胶粘制品有限公司 | A kind of medical adhesive tape base material and preparation method thereof |
| CN108914670A (en) * | 2018-07-14 | 2018-11-30 | 潍坊杰高长纤维制品科技有限公司 | A kind of high medical adhesive tape substrate and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6107219A (en) * | 1998-02-11 | 2000-08-22 | 3M Innovative Properties Company | Breathable backing for an adhesive article |
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2019
- 2019-04-15 CN CN201910301689.4A patent/CN109988515B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958598A (en) * | 2011-12-07 | 2014-07-30 | 乐金华奥斯有限公司 | Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material |
| CN106012658A (en) * | 2016-05-27 | 2016-10-12 | 浙江华邦特种纸业有限公司 | Breathable medical adhesive tape base material and manufacturing method thereof |
| CN108659722A (en) * | 2018-05-14 | 2018-10-16 | 苏州盛达胶粘制品有限公司 | A kind of medical adhesive tape base material and preparation method thereof |
| CN108914670A (en) * | 2018-07-14 | 2018-11-30 | 潍坊杰高长纤维制品科技有限公司 | A kind of high medical adhesive tape substrate and preparation method thereof |
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