CN109988515A - A method of without aldehyde muting sensitive medical adhesive tape substrate and gluing - Google Patents
A method of without aldehyde muting sensitive medical adhesive tape substrate and gluing Download PDFInfo
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- CN109988515A CN109988515A CN201910301689.4A CN201910301689A CN109988515A CN 109988515 A CN109988515 A CN 109988515A CN 201910301689 A CN201910301689 A CN 201910301689A CN 109988515 A CN109988515 A CN 109988515A
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- adhesive tape
- medical adhesive
- tape substrate
- porous silica
- aldehyde
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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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- 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 the methods of a kind of no aldehyde muting sensitive medical adhesive tape substrate and gluing, belong to medical adhesive tape Material Field.The present invention selects the raw materials such as agricultural crop straw, flaxen fiber, sorbierite, dodecyl sodium sulfate, vinyl methacrylate, modified porous silica, guar gum to be prepared into tape substrate, then it is prepared into colorless and transparent thick liquid to be coated in tape substrate, coated weight is 0.05~0.1g/100cm2, finally dry, medical adhesive tape.Invention uses the substances such as agricultural crop straw, flaxen fiber, guar gum for main material, so that medical adhesive tape substrate obtains fine air permeability, and has that non-stimulated, bio-compatible is good, can keep the advantages of cohesive force for a long time；And the glue consumption coated is seldom, wherein after being used in compounding without formaldehyde and substrate, while meeting viscosity, moreover it is possible to guarantee gas permeability.
Description
Technical field
The present invention relates to medical adhesive tape production technical fields, and in particular to a kind of no aldehyde muting sensitive medical adhesive tape substrate and gluing
Method.
Background technique
Ubiquitous stage has been arrived in the application of medical adhesive tape.In operation, wound and incontinent-care, monitoring, diagnosis etc.
On the product that links use, it is infused in some operations or in the treatment of some diseases, perfusion tube needs benefit
It is fixed on human body with medical adhesive tape.The above needs good permeability, non-stimulated, bio-compatible, can keep bonding for a long time
The medical belt of power, particularly with some allergic constitution crowds or the baby to bear a pretty, delicate skin etc. with greater need for above-mentioned Optimality
The medical adhesive tape of energy.Medical adhesive tape common at present uses punching processing to obtain good gas permeability, carries out to material edge
Special sawtooth processing, process is complex, and air permeability effect is not significant.
Wherein gas permeability be influence adhesive tape allergy a principal element, because of the adhesive tape that gas permeability is bad, sweat just compared with
Hardly possible discharge causes allergy so being easy for stimulation skin；And glue consumption is big in medical adhesive tape, causes biggish stimulation to skin,
It is easy to cause skin allergy.
Summary of the invention
The present invention in view of the above-mentioned deficiencies in the prior art, and provides a kind of no aldehyde muting sensitive medical adhesive tape substrate and painting
The method of glue.
The present invention is achieved in the following ways, and concrete operation step includes:
A kind of no aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the medical adhesive tape substrate, according to parts by weight,
Raw material is following components: 25~30 parts of agricultural crop straws, 30~35 parts of flaxen fibers, 0.1~0.3 part of sorbierite, 1~3 part 12
Sodium alkyl sulfonate, 5~8 parts of vinyl methacrylates, 3~5 parts of propylene glycol, 0.1~0.3 part of ammonium persulfate, 5~10 parts of modifications
Porous silica and 3~5 parts of guar gums；
The preparation step of medical adhesive tape substrate are as follows:
(1) it is beaten after mixing agricultural crop straw, flaxen fiber and water, beating degree is 9~10 ° of SR, is adjusted after mashing
PH is 8.5~9.0, is heated to 60 DEG C of progress high-temperature process, and sorbierite, ten are added into mixed serum after handling 30~40min
Dialkyl sulfonates；
The agricultural crop straw is wheat straw, straw, cotton stalk, bagasse, two or more in cornstalk；It is described
Flaxen fiber be flax, sisal hemp, two kinds of mixing in ramie.
(2) after being stirred, ammonium persulfate is added under nitrogen protection, is then added vinyl methacrylate, the third two
Alcohol, modified porous silica and guar gum are stirred to react 3~5h, dry after reaction, dried object are obtained, then according to existing work
Skill twists resultant yarn, warping, drawing-in, then weaves to obtain pretreated tape substrate.
The modified porous silica the preparation method comprises the following steps: weigh porous silica powder, be first placed in grinder
30~40min is ground, porous silica is mixed with acrylic acid after grinding, after stirring in air atmosphere, crosslinking with radiation is carried out,
Modified porous silica is obtained after crosslinking.
The size in the hole of the porous silica is 20 nanometers~120 nanometers；The porous silica and acrylic acid
Mass ratio be 20:1~3.
Glue spreading method without aldehyde muting sensitive medical adhesive tape substrate are as follows:
(1) sodium carboxymethyl starch, Glycidyl methacrylate are added in the reaction kettle with blender and reflux condenser
Glyceride, methacrylic acid and acrylic acid-2-ethyl caproite are monomer and solvent, initiator dibenzoyl peroxide；
(2) it is heated to carrying out polymerization reaction at 40~50 DEG C of temperature under nitrogen protection, after reaction 2~3h hours, obtains nothing
Color clear viscous liquids, viscosity are about 3000~5000mPas；
(3) medical pressure sensitive adhesive obtained above is coated in tape substrate, coated weight is 0.05~0.1g/100cm2,
It finally dries, medical adhesive tape.
Sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and the acrylic acid-2-ethyl caproite
Mass ratio between monomer is 1:1:1:1；The solvent is ethyl acetate；The initiator is dibenzoyl peroxide.
Compared with prior art, the invention has the benefit that
It (1) is first to be prepared into medical adhesive tape substrate in tradition, then in coated substrate adhesive, due to existing in adhesive
The surface that substrate can be covered in coating procedure, is filled in hole, leads to tape substrate poor air permeability, and excessive adhesive
It is big to skin irritation, cause skin allergy, it is rubescent situations such as.And the present invention is first prepared by the selection and adjustment of formula
Without aldehyde muting sensitive medical adhesive tape substrate, which has certain tack, while with excellent breathability, moreover it is possible to
When greatly reducing later period adhesive, so when the application later period coating adhesive, it is only necessary to the 10~20% of conventional amount are coated,
The dosage does not cover gap enough, so medical adhesive tape is finally made, has not only been able to satisfy the requirement of viscosity, but also have good
Gas permeability.
(2) present invention uses the substances such as agricultural crop straw, flaxen fiber, guar gum for main material, so that medical adhesive tape substrate
Fine air permeability is obtained, and has non-stimulated, bio-compatible, the advantages of cohesive force can be kept for a long time；
(3) porous silica powder is added in the present invention, not only significantly improves the gas permeability of substrate, moreover it is possible to effectively enhancing base
The viscosity of material is further reduced the dosage of coating adhesive of the present invention, and the glue safety and environmental protection, wherein being free of formaldehyde, and and base
After material is used in compounding, while meeting viscosity, moreover it is possible to guarantee gas permeability, with skin contact, skin can be kept clearly to breathe freely, drop
Low allergic phenomena.
Specific embodiment
Embodiment 1
According to parts by weight, weighing raw material is following components: 30 parts of agricultural crop straws, 35 parts of flaxen fibers, 0.3 portion of sorb
Alcohol, 1 part of dodecyl sodium sulfate, 5 parts of vinyl methacrylates, 5 parts of propylene glycol, 0.3 part of ammonium persulfate, 10 parts it is modified porous
Silica and 5 parts of guar gums；
Modified porous silica the preparation method comprises the following steps: weigh porous silica powder, be first placed in grinder and grind
30~40min, porous silica is mixed with acrylic acid after grinding, after stirring in air atmosphere, carries out crosslinking with radiation, crosslinking
Modified porous silica is obtained afterwards.The size in the hole of porous silica is 20 nanometers~120 nanometers；The porous silica
Mass ratio with acrylic acid is 20:3.
It is beaten after first mixing agricultural crop straw, flaxen fiber and water, beating degree is 9~10 ° of SR, adjusts pH after mashing
It is 9.0, is heated to 60 DEG C of progress high-temperature process, sorbierite, dodecyl sodium sulfonate is added into mixed serum after handling 40min
Sodium；After being stirred, ammonium persulfate is added under nitrogen protection, vinyl methacrylate is then added, propylene glycol is modified more
Hole silica and guar gum are stirred to react 5h, dry after reaction, obtain dried object, then according to prior art twisting resultant yarn, whole
Through, drawing-in, pretreated tape substrate is then weaved to obtain.
Glue spreading method without aldehyde muting sensitive medical adhesive tape substrate are as follows:
(1) sodium carboxymethyl starch, Glycidyl methacrylate are added in the reaction kettle with blender and reflux condenser
Glyceride, methacrylic acid and acrylic acid-2-ethyl caproite are monomer and solvent, initiator dibenzoyl peroxide；
(2) it is heated to carrying out polymerization reaction under temperature 50 C under nitrogen protection, after reaction 3h hours, obtain colorless and transparent viscous
Thick liquid, viscosity are about 5000mPas；
(3) medical pressure sensitive adhesive obtained above is coated in tape substrate, coated weight 0.1g/100cm2, finally do
It is dry, medical adhesive tape.Sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and acrylic acid-2-ethyl caproite list
Mass ratio between body is 1:1:1:1；The solvent is ethyl acetate；The initiator is dibenzoyl peroxide.
Embodiment 2
According to parts by weight, weighing raw material is following components: 25 parts of agricultural crop straws, 35 parts of flaxen fibers, 0.1 portion of sorb
Alcohol, 1 part of dodecyl sodium sulfate, 5 parts of vinyl methacrylates, 3 parts of propylene glycol, 0.1 part of ammonium persulfate, 5 parts it is modified porous
Silica and 3 parts of guar gums；
Modified porous silica the preparation method comprises the following steps: weigh porous silica powder, be first placed in grinder and grind
30~40min, porous silica is mixed with acrylic acid after grinding, after stirring in air atmosphere, carries out crosslinking with radiation, crosslinking
Modified porous silica is obtained afterwards.The size in the hole of porous silica is 20 nanometers~120 nanometers；The porous silica
Mass ratio with acrylic acid is 20:1.
It is beaten after first mixing agricultural crop straw, flaxen fiber and water, beating degree is 9~10 ° of SR, adjusts pH after mashing
It is 8.5, is heated to 60 DEG C of progress high-temperature process, sorbierite, dodecyl sodium sulfonate is added into mixed serum after handling 30min
Sodium；After being stirred, ammonium persulfate is added under nitrogen protection, vinyl methacrylate is then added, propylene glycol is modified more
Hole silica and guar gum are stirred to react 3h, dry after reaction, obtain dried object, then according to prior art twisting resultant yarn, whole
Through, drawing-in, pretreated tape substrate is then weaved to obtain.
Glue spreading method without aldehyde muting sensitive medical adhesive tape substrate are as follows:
(1) sodium carboxymethyl starch, Glycidyl methacrylate are added in the reaction kettle with blender and reflux condenser
Glyceride, methacrylic acid and acrylic acid-2-ethyl caproite are monomer and solvent, initiator dibenzoyl peroxide；
(2) it is heated to carrying out polymerization reaction at 40 DEG C of temperature under nitrogen protection, after reaction 2h hours, obtain colorless and transparent viscous
Thick liquid, viscosity are about 3000mPas；
(3) medical pressure sensitive adhesive obtained above is coated in tape substrate, coated weight 0.05g/100cm2, finally do
It is dry, medical adhesive tape.Sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and acrylic acid-2-ethyl caproite list
Mass ratio between body is 1:1:1:1；The solvent is ethyl acetate；The initiator is dibenzoyl peroxide.
Embodiment 3
According to parts by weight, weighing raw material is following components: 27 parts of agricultural crop straws, 33 parts of flaxen fibers, 0.2 portion of sorb
Alcohol, 2 parts of dodecyl sodium sulfates, 7 parts of vinyl methacrylates, 4 parts of propylene glycol, 0.2 part of ammonium persulfate, 7 parts it is modified porous
Silica and 4 parts of guar gums；
Modified porous silica the preparation method comprises the following steps: weigh porous silica powder, be first placed in grinder and grind
35min, porous silica is mixed with acrylic acid after grinding, after stirring in air atmosphere, carries out crosslinking with radiation, after crosslinking
Modified porous silica.The size in the hole of porous silica is 100 nanometers；The matter of the porous silica and acrylic acid
Amount is than being 20:2.
It is beaten after first mixing agricultural crop straw, flaxen fiber and water, beating degree is 9~10 ° of SR, adjusts pH after mashing
It is 8.7, is heated to 60 DEG C of progress high-temperature process, sorbierite, dodecyl sodium sulfonate is added into mixed serum after handling 35min
Sodium；After being stirred, ammonium persulfate is added under nitrogen protection, vinyl methacrylate is then added, propylene glycol is modified more
Hole silica and guar gum are stirred to react 4h, dry after reaction, obtain dried object, then according to prior art twisting resultant yarn, whole
Through, drawing-in, pretreated tape substrate is then weaved to obtain.
Glue spreading method without aldehyde muting sensitive medical adhesive tape substrate are as follows:
(1) sodium carboxymethyl starch, Glycidyl methacrylate are added in the reaction kettle with blender and reflux condenser
Glyceride, methacrylic acid and acrylic acid-2-ethyl caproite are monomer and solvent, initiator dibenzoyl peroxide；
(2) it is heated to carrying out polymerization reaction under temperature 45 C under nitrogen protection, after reaction 2.5h hours, obtain colorless and transparent
Thick liquid, viscosity are about 4000mPas；
(3) medical pressure sensitive adhesive obtained above is coated in tape substrate, coated weight 0.07g/100cm2, finally do
It is dry, medical adhesive tape.Sodium carboxymethyl starch, glycidyl methacrylate, methacrylic acid and acrylic acid-2-ethyl caproite list
Mass ratio between body is 1:1:1:1；The solvent is ethyl acetate；The initiator is dibenzoyl peroxide.
Comparative example 1
Compared with Example 1, difference is comparative example 1: porous silica not being added, remaining raw material and step and implementation
Example 1 is identical, is prepared into medical adhesive tape.
Comparative example 2
Compared with Example 1, difference is comparative example 2: vinyl methacrylate is not added in substrate, remaining raw material and
Step is same as Example 1, is prepared into medical adhesive tape.
Comparative example 3
Compared with Example 1, difference is comparative example 3: medical pressure sensitive adhesive is coated on the coated weight in tape substrate and is
2.0g/100cm2, remaining raw material and step are same as Example 1, are prepared into medical adhesive tape.
Comparative example 4
Compared with Example 1, difference is comparative example 4: guar gum is substituted for sodium alginate, remaining raw material and step with
Embodiment 1 is identical, is prepared into medical adhesive tape.
Medical adhesive tape prepared in the above embodiments is subjected to performance detection, testing result is as shown in table 1:
The measurement of peeling force: preparing width is 25mm, and the sample of a length of 200mm is pasted on clean stainless steel breadboard
On, it is rolled back and forth three times with 2kg weight rubber roller, then in the environment of 23 DEG C ± 2 DEG C of temperature, relative humidity 65% ± 5%
30min is placed, is removed with BLD-30S electron detachment testing machine with the speed of 300mm/min.
Claims (6)
1. a kind of no aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the medical adhesive tape substrate, it is according to parts by weight, former
Material is following components: 25~30 parts of agricultural crop straws, 30~35 parts of flaxen fibers, 0.1~0.3 part of sorbierite, 1~3 part of dodecane
Base sodium sulfonate, 5~8 parts of vinyl methacrylates, 3~5 parts of propylene glycol, 0.1~0.3 part of ammonium persulfate, 5~10 parts of modifications are more
Hole silica and 3~5 parts of guar gums；
The preparation step of medical adhesive tape substrate are as follows:
(1) it is beaten after mixing agricultural crop straw, flaxen fiber and water, beating degree is 9~10 ° of SR, and pH is adjusted after mashing and is
8.5~9.0,60 DEG C of progress high-temperature process are heated to, sorbierite, dodecane are added into mixed serum after handling 30~40min
Base sodium sulfonate；
(2) after being stirred, ammonium persulfate is added under nitrogen protection, vinyl methacrylate is then added, propylene glycol changes
Property porous silica and guar gum, be stirred to react 3~5h, it is dry after reaction, obtain dried object, then twisted according to prior art
Resultant yarn, warping, drawing-in weave to obtain medical adhesive tape substrate.
2. according to claim 1 without aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the agricultural crop straw is wheat
Straw, straw, cotton stalk, bagasse, two or more in cornstalk；The flaxen fiber is flax, sisal hemp, in ramie
Two kinds of mixing.
3. according to claim 1 without aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the modified porous silica
The preparation method comprises the following steps: weighing porous silica powder, it is first placed in 30~40min of grinding, porous silica after grinding in grinder
Silicon is mixed with acrylic acid, after stirring in air atmosphere, carries out crosslinking with radiation, modified porous silica is obtained after crosslinking.
4. according to claim 3 without aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the hole of the porous silica
Size is 20 nanometers~120 nanometers；The mass ratio of the porous silica and acrylic acid is 20:1~3.
5. the glue spreading method of any one of -4 no aldehyde muting sensitive medical adhesive tape substrates according to claim 1, it is characterised in that:
(1) sodium carboxymethyl starch, methyl propenoic acid glycidyl are added in the reaction kettle with blender and reflux condenser
Ester, methacrylic acid and acrylic acid-2-ethyl caproite are monomer and solvent, initiator dibenzoyl peroxide；
(2) it is heated to carrying out polymerization reaction at 40~50 DEG C of temperature under nitrogen protection, after reaction 2~3h hours, obtain colourless
Bright thick liquid, viscosity are about 3000~5000mPas；
(3) colorless and transparent thick liquid obtained above is coated in tape substrate, coated weight is 0.05~0.1g/100cm2,
It finally dries, medical adhesive tape.
6. the glue spreading method according to claim 5 without aldehyde muting sensitive medical adhesive tape substrate, it is characterised in that: the carboxymethyl
Mass ratio between sodium starch, glycidyl methacrylate, methacrylic acid and acrylic acid-2-ethyl caproite monomer is 1:
1:1:1；The solvent is ethyl acetate；The initiator is dibenzoyl peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 CN109988515B (en) | 2021-08-06 |
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| CN109988515B (en) | 2021-08-06 |
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