CN107858116B - Traceless adhesive tape for glass protection and processing technology thereof - Google Patents
Traceless adhesive tape for glass protection and processing technology thereof Download PDFInfo
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- CN107858116B CN107858116B CN201711122583.5A CN201711122583A CN107858116B CN 107858116 B CN107858116 B CN 107858116B CN 201711122583 A CN201711122583 A CN 201711122583A CN 107858116 B CN107858116 B CN 107858116B
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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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
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- 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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
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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
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive 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
- C09J2433/00—Presence of (meth)acrylic polymer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a traceless adhesive tape for glass protection and a processing technology thereof, wherein the traceless adhesive tape is prepared by uniformly stirring and mixing an adhesive and aziridine and coating the mixture on a plastic film within a certain time; the adhesive is prepared from the following raw materials of butyl acrylate, isooctyl acrylate, acrylic acid, hydroxyethyl acrylate, vinyl acetate, methyl acrylate, a defoaming agent, an emulsifying agent and the like, the adhesive tape has good bonding force to automobile glass, and residual glue cannot be left on the glass after the adhesive tape is bonded and torn.
Description
Technical Field
The invention relates to a traceless adhesive tape for protecting glass and a processing technology thereof, belonging to the technical field of adhesive tapes.
Background
With the rapid development of society, various adhesive tapes have become indispensable articles in the industries of electronics, hardware, electrical appliances and the like. The adhesive can be used for bonding nameplates and label marks in the industries of aerospace, transportation, medical treatment and industrial equipment, automobiles, household appliances and electronic markets; at present, the adhesive tapes are adhered to the automobile glass, but the peeling force of the current adhesive tapes applied to the glass is relatively high, the bonding force to the automobile glass is strong, residual adhesive is easy to remain on the glass after the adhesion and the tearing, and in addition, for some adhesive tapes with characters or identification patterns used at present, after the characters or the identification patterns are printed on the plastic films, glue is coated on the plastic films, but the existing glue is used after being coated, so that the characters or the identification patterns are adhered to an object after the adhesive tapes are torn off, thereby influencing the beauty and the use of the object, the current solution is to utilize two layers of plastic films, wherein the characters or the identification patterns are firstly printed on the plastic films, then the glue is coated, then a layer of plastic film is laid, and finally the glue is coated, so that the contact between the characters or the identification patterns and the object to be adhered is avoided, but the preparation procedures are not only increased, and increases the preparation cost.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a traceless adhesive tape for protecting glass and a processing technology thereof, the adhesive tape has good bonding force to automobile glass, residual adhesive cannot be left on the glass after the adhesive tape is bonded and torn, meanwhile, if characters or identification patterns are printed on a plastic film of the adhesive tape, the adhesive tape can be easily torn and cannot be left on the glass, meanwhile, the adhesive used by the adhesive tape is a water-based adhesive, the formaldehyde content of the adhesive is greatly reduced, the adhesive is an environment-friendly adhesive, and the cost is saved.
The technical scheme of the invention is as follows:
a traceless adhesive tape for glass protection is prepared by the following steps:
stirring and mixing 1000 parts by weight of adhesive and 1 part by weight of aziridine uniformly, and coating the mixture on a plastic film; the adhesive is prepared from the following raw materials in parts by weight:
wherein the first defoaming agent is an organic silicon defoaming agent.
The adhesive tape can also be used for printing characters or identification patterns between the plastic film and the glue, and then coating the adhesive.
Further, the emulsifier comprises sulfosuccinic acid ethoxy ethanol monoester disodium salt with the concentration of 0.5 to 0.9 percent (weight) and polyethoxylated fatty alcohol with the concentration of 0.2 to 0.5 percent (weight).
Further, the concentration of the wetting agent is 2 to 4.4 weight percent, and the concentration of the second defoaming agent is 0.5 to 1.9 weight percent.
Further, the organic silicon defoaming agent is polydimethylsiloxane, and the second defoaming agent is polyoxypropylene glycerol ether.
Further, the concentration of the sodium bicarbonate water solution is 1.25 to 4 percent (weight).
Further, the initiator is 1.3 to 2.4 weight percent of potassium persulfate aqueous solution.
Further, the wetting agent is one of NNO, NP-10, K12, K14 and OT-75.
Further, the preservative is one or a mixture of two of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one.
The invention also comprises a processing technology of the traceless adhesive tape for glass protection, which comprises the following steps: 1000 parts by weight of adhesive and 0.5-2 parts by weight of aziridine are stirred and mixed uniformly (curing reaction is carried out through oven temperature), the mixture is coated on a plastic film with the thickness of 25-36um within 6-9 hours, and the total thickness of the adhesive tape is 48-55 um.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.5-0.7 weight part of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.2-0.4 weight part of polyethoxylated fatty alcohol and 80-100 weight parts of deionized water into a reaction kettle, and stirring for 10-15 minutes; the emulsifier is used, so that the monomers can be fully mixed and contacted.
(2) Adding 65-80 parts by weight of butyl acrylate, 310-350 parts by weight of isooctyl acrylate, 8.5-11.0 parts by weight of acrylic acid, 6.5-8.5 parts by weight of hydroxyethyl acrylate, 2-6 parts by weight of vinyl acetate, 1.5-4.5 parts by weight of methyl acrylate and 0.1-0.3 part by weight of organic silicon defoamer into a container, fully mixing, adding into an emulsifying tank containing the solution in the step (1), and uniformly stirring to form a pre-emulsion; isooctyl acrylate is used as a main body and butyl acrylate is used as an auxiliary agent to adjust the adhesive force of the adhesive, vinyl acetate and methyl acrylate are used for adjusting the peeling force of the adhesive, acrylic acid is an intermediate monomer, hydroxyethyl acrylate is a cross-linking monomer, TG and peeling force of the adhesive are adjusted by adjusting different proportions of butyl acrylate and isooctyl acrylate and carrying out polymerization reaction by different proportions of vinyl acetate and methyl acrylate, and the peeling force required by the adhesive is achieved.
(3) Adding 20-40 parts by weight of sodium bicarbonate aqueous solution with the concentration of 1.25% -4% (weight) into the reaction kettle at the temperature of 50-65 ℃;
(4) continuously heating the reaction kettle, adding 25-40 parts by weight of 1.5% -4% (weight) potassium persulfate aqueous solution into the reaction kettle at the temperature of 70-85 ℃, and stirring for 5-10 minutes to fully mix; dripping the pre-emulsion formed in the step (2) and 50-70 parts by weight of 1.3% -2.4% (weight) of potassium persulfate aqueous solution into the reaction kettle simultaneously within 3-5 hours by adopting a titration mode and stirring, and continuing stirring for 1.5-3 hours after finishing dripping, wherein the temperature is kept at 80-86 ℃;
(5) and (3) post-treatment stage:
when the temperature is reduced to 65-70 ℃, adding 7-9 parts by weight of tert-butyl hydrogen peroxide aqueous solution with the concentration of 6% -11% (weight) into the reaction kettle;
when the temperature is reduced to 61-65 ℃, adding 15-19 parts by weight of sodium formaldehyde sulfoxylate aqueous solution with the concentration of 2.6-5 percent (weight) into the reaction kettle;
when the temperature is reduced to 57-61 ℃, adding 16-20 parts by weight of an aqueous solution containing a wetting agent and a second defoaming agent into the reaction kettle, wherein the concentration of the wetting agent is 2% -4.4%, and the concentration of the second defoaming agent is 0.5% -1.9%;
when the temperature is reduced to 54-56 ℃, adding 3.5-5.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 49-51 ℃, adding 1.8-3.2 parts by weight of silane coupling agent into the reaction kettle; the adhesion of the adhesive tape on the glass is increased by adding the silane coupling agent.
When the temperature is reduced to 47-49 ℃, adding 0.5-0.8 weight part of preservative into the reaction kettle;
when the temperature is reduced to 44-46 ℃, discharging.
The invention has the following beneficial effects:
the invention provides a traceless adhesive tape for protecting glass and a processing technology thereof, the adhesive tape has good bonding force to automobile glass, residual adhesive cannot be left on the glass after the adhesive tape is bonded and torn, meanwhile, if characters or identification patterns are printed on a plastic film of the adhesive tape, the adhesive tape can be easily torn and cannot be left on the glass, meanwhile, the adhesive used by the adhesive tape is a water-based adhesive, the formaldehyde content of the adhesive is greatly reduced, the adhesive is an environment-friendly adhesive, and the cost is saved. According to the invention, the stripping force of the adhesive is adjusted by adjusting different proportions of butyl acrylate and isooctyl acrylate and adjusting different proportions of vinyl acetate and methyl acrylate, and then the adhesion force of the adhesive tape on glass is adjusted by adding a silane coupling agent, so that the prepared adhesive tape has good adhesion force to automobile glass, and no residual adhesive is left on the automobile glass after the adhesive tape is adhered and torn.
Detailed Description
The following are examples of the present invention, which are further illustrative of the present invention, but the present invention is not limited thereto.
The first embodiment is as follows:
a processing technology of a traceless adhesive tape for glass protection comprises the following steps: 1000 parts by weight of adhesive and 0.5 part by weight of aziridine are uniformly stirred and mixed, and the mixture is coated on a plastic film with the thickness of 25um within 6 hours, and the total thickness of the adhesive tape is 48 um.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.5 part by weight of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.2 part by weight of polyethoxylated fatty alcohol and 80 parts by weight of deionized water into a reaction kettle, and stirring for 10 minutes;
(2) adding 65 parts by weight of butyl acrylate, 310 parts by weight of isooctyl acrylate, 8.5 parts by weight of acrylic acid, 6.5 parts by weight of hydroxyethyl acrylate, 2 parts by weight of vinyl acetate, 1.5 parts by weight of methyl acrylate and 0.1 part by weight of polydimethylsiloxane into a container, fully mixing, adding into an emulsifying tank filled with the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 20 parts by weight of sodium bicarbonate aqueous solution with the concentration of 1.25 percent (weight) into the reaction kettle at the temperature of 57 ℃;
(4) continuously heating the reaction kettle, adding 25 parts by weight of 1.5 percent (by weight) potassium persulfate aqueous solution into the reaction kettle at the temperature of 70 ℃, and stirring for 5 minutes to fully mix; dropping the pre-emulsion formed in the step (2) and 50 parts by weight of 1.3 percent (weight) potassium persulfate aqueous solution into the reaction kettle simultaneously within 3 hours by adopting a titration mode under the stirring condition, and continuing stirring for 1.5 hours after dropping is finished, wherein the temperature is kept at 80 ℃;
(5) and (3) post-treatment stage:
when the temperature was lowered to 65 ℃, 7 parts by weight of a 6% by weight aqueous solution of t-butyl hydroperoxide was added to the reactor;
when the temperature is reduced to 61 ℃, 15 parts by weight of the sodium formaldehyde sulfoxylate aqueous solution with the concentration of 2.6 percent (weight) is added into the reaction kettle;
when the temperature was lowered to 57 ℃, 16 parts by weight of an aqueous solution containing OT-75 at a concentration of 2% by weight and polyoxypropylene glycerol ether at a concentration of 0.5% by weight was added to the reaction vessel;
when the temperature is reduced to 54 ℃, adding 3.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 49 ℃, 1.8 parts by weight of silane coupling agent is added into the reaction kettle;
when the temperature is reduced to 47 ℃, adding 0.5 weight part of 5-chloro-2-methyl-4-isothiazolin-3-ketone into the reaction kettle;
when the temperature is reduced to 44 ℃, discharging.
Example two:
a processing technology of a traceless adhesive tape for glass protection comprises the following steps: 1000 parts by weight of adhesive and 1 part by weight of aziridine are uniformly stirred and mixed, and the mixture is coated on a plastic film with the thickness of 26um within 7 hours, wherein the total thickness of the adhesive tape is 49 um.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.6 part by weight of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.3 part by weight of polyethoxylated fatty alcohol and 85 parts by weight of deionized water into a reaction kettle, and stirring for 12 minutes;
(2) adding 67 parts by weight of butyl acrylate, 320 parts by weight of isooctyl acrylate, 9.5 parts by weight of acrylic acid, 7 parts by weight of hydroxyethyl acrylate, 3 parts by weight of vinyl acetate, 2 parts by weight of methyl acrylate and 0.2 part by weight of polydimethylsiloxane into a container, fully mixing, adding into an emulsifying tank filled with the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 25 parts by weight of 2% (weight) sodium bicarbonate aqueous solution into the reaction kettle at the temperature of 55 ℃;
(4) continuously heating the reaction kettle, adding 27 parts by weight of 2 percent (weight) potassium persulfate aqueous solution into the reaction kettle at the temperature of 78 ℃, and stirring for 7 minutes to fully mix; dropping the pre-emulsion formed in the step (2) and 60 parts by weight of 2% (weight) potassium persulfate aqueous solution into the reaction kettle simultaneously in 4 hours by adopting a titration mode under the stirring condition, and continuing stirring for 2 hours after dropping is finished, wherein the temperature is kept at 82 ℃;
(5) and (3) post-treatment stage:
when the temperature was lowered to 68 ℃, 8 parts by weight of an 8% by weight aqueous solution of t-butyl hydroperoxide was added to the reactor;
when the temperature is reduced to 63 ℃, 16 parts by weight of a sodium formaldehyde sulfoxylate aqueous solution with the concentration of 3 percent (weight) is added into the reaction kettle;
when the temperature was lowered to 61 ℃, 18 parts by weight of an aqueous solution containing K14 at a concentration of 2.5% by weight and polyoxypropylene glycerol ether at a concentration of 1% by weight was added to the reaction vessel;
when the temperature is reduced to 56 ℃, adding 4 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 50 ℃, adding 2 parts by weight of silane coupling agent into the reaction kettle;
when the temperature is reduced to 49 ℃, adding 0.6 weight part of 5-chloro-2-methyl-4-isothiazolin-3-ketone into the reaction kettle;
when the temperature is reduced to 46 ℃, discharging.
Example three:
a processing technology of a traceless adhesive tape for glass protection comprises the following steps: 1000 parts by weight of adhesive and 1.5 parts by weight of aziridine are uniformly stirred and mixed, and the mixture is coated on a plastic film with the thickness of 27 microns within 8 hours, and the total thickness of the adhesive tape is 50 microns.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.6 part by weight of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.3 part by weight of polyethoxylated fatty alcohol and 95 parts by weight of deionized water into a reaction kettle, and stirring for 13 minutes;
(2) adding 70 parts by weight of butyl acrylate, 345 parts by weight of isooctyl acrylate, 10.5 parts by weight of acrylic acid, 7.5 parts by weight of hydroxyethyl acrylate, 4 parts by weight of vinyl acetate, 2.5 parts by weight of methyl acrylate and 0.2 part by weight of polydimethylsiloxane into a container, fully mixing, adding into an emulsifying tank filled with the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 30 parts by weight of 2.5% (weight) sodium bicarbonate aqueous solution into the reaction kettle at the temperature of 55 ℃;
(4) continuously heating the reaction kettle, adding 35 parts by weight of 2.5 percent (weight) potassium persulfate aqueous solution into the reaction kettle at the temperature of 78 ℃, and stirring for 8 minutes to fully mix; dropping the pre-emulsion formed in the step (2) and 65 parts by weight of potassium persulfate aqueous solution with the concentration of 1.8 percent (weight) into the reaction kettle simultaneously in 4 hours by adopting a titration mode under the stirring condition, and continuing stirring for 2.5 hours after the dropping is finished, wherein the temperature is kept at 84 ℃;
(5) and (3) post-treatment stage:
when the temperature was decreased to 69 ℃, 7.5 parts by weight of a 6.5% by weight aqueous solution of t-butyl hydroperoxide was added to the reaction vessel;
when the temperature is reduced to 64 ℃, 17 parts by weight of sodium formaldehyde sulfoxylate aqueous solution with the concentration of 4 percent (weight) is added into the reaction kettle;
when the temperature was lowered to 61 ℃, 18 parts by weight of an aqueous solution containing NP-10 at a concentration of 3% by weight and polyoxypropylene glycerol ether at a concentration of 1.5% by weight was charged into the reaction vessel;
when the temperature is reduced to 55 ℃, adding 4.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 51 ℃, adding 2.5 parts by weight of silane coupling agent into the reaction kettle;
when the temperature is reduced to 47 ℃, adding 0.7 weight part of a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one into the reaction kettle;
when the temperature is reduced to 45 ℃, discharging.
Example four:
a processing technology of a traceless adhesive tape for glass protection comprises the following steps: 1000 parts by weight of adhesive and 1.5 parts by weight of aziridine are uniformly stirred and mixed, and the mixture is coated on a plastic film with the thickness of 30um within 8 hours, and the total thickness of the adhesive tape is 55 um.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.6 part by weight of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.3 part by weight of polyethoxylated fatty alcohol and 90 parts by weight of deionized water into a reaction kettle, and stirring for 13 minutes;
(2) adding 68 parts by weight of butyl acrylate, 340 parts by weight of isooctyl acrylate, 9.5 parts by weight of acrylic acid, 7 parts by weight of hydroxyethyl acrylate, 5 parts by weight of vinyl acetate, 3.5 parts by weight of methyl acrylate and 0.25 part by weight of polydimethylsiloxane into a container, fully mixing, adding into an emulsifying tank filled with the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 35 parts by weight of 2.25% (weight) sodium bicarbonate aqueous solution into the reaction kettle at the temperature of 62 ℃;
(4) continuously heating the reaction kettle, adding 35 parts by weight of potassium persulfate aqueous solution with the concentration of 3.5 percent (weight) into the reaction kettle at the temperature of 78 ℃, and stirring for 8 minutes to fully mix; dropping the pre-emulsion formed in the step (2) and 65 parts by weight of potassium persulfate aqueous solution with the concentration of 2.3 percent (weight) into the reaction kettle simultaneously in 4 hours by adopting a titration mode under the stirring condition, and continuing stirring for 2 hours after dropping is finished, wherein the temperature is kept at 84 ℃;
(5) and (3) post-treatment stage:
when the temperature was lowered to 68 ℃, 8 parts by weight of a 9% by weight aqueous solution of t-butyl hydroperoxide was added to the reactor;
when the temperature is reduced to 65 ℃, adding 18 parts by weight of a sodium formaldehyde sulfoxylate aqueous solution with the concentration of 3 percent by weight into the reaction kettle;
when the temperature was lowered to 61 ℃, 18 parts by weight of an aqueous solution containing OT-75 at a concentration of 3.5% by weight and polyoxypropylene glycerol ether at a concentration of 1.5% by weight was added to the reaction vessel;
when the temperature is reduced to 55 ℃, adding 4.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 51 ℃, adding 2.5 parts by weight of silane coupling agent into the reaction kettle;
when the temperature is reduced to 49 ℃, adding 0.7 weight part of 2-methyl-4-isothiazoline-3-ketone into the reaction kettle;
when the temperature is reduced to 45 ℃, discharging.
Example five:
a processing technology of a traceless adhesive tape for glass protection comprises the following steps: 1000 parts by weight of adhesive and 2 parts by weight of aziridine are uniformly stirred and mixed, and the mixture is coated on a plastic film with the thickness of 30um within 9 hours, and the total thickness of the adhesive tape is 55 um.
Further, the processing technology of the adhesive comprises the following steps:
(1) adding 0.7 weight part of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.4 weight part of polyethoxylated fatty alcohol and 100 weight parts of deionized water into a reaction kettle, and stirring for 15 minutes;
(2) adding 80 parts by weight of butyl acrylate, 350 parts by weight of isooctyl acrylate, 11.0 parts by weight of acrylic acid, 8.5 parts by weight of hydroxyethyl acrylate, 6 parts by weight of vinyl acetate, 4.5 parts by weight of methyl acrylate and 0.3 part by weight of polydimethylsiloxane into a container, fully mixing, adding into an emulsifying tank filled with the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 40 parts by weight of a 4% (weight) sodium bicarbonate aqueous solution into the reaction kettle at the temperature of 65 ℃;
(4) continuously heating the reaction kettle, adding 40 parts by weight of potassium persulfate aqueous solution with the concentration of 4 percent (by weight) into the reaction kettle at the temperature of 85 ℃, and stirring for 10 minutes to fully mix; dropping the pre-emulsion formed in the step (2) and 70 parts by weight of potassium persulfate aqueous solution with the concentration of 2.4 percent (weight) into the reaction kettle simultaneously within 5 hours by adopting a titration mode under the stirring condition, and continuing stirring for 3 hours after dropping is finished, wherein the temperature is kept at 86 ℃;
(5) and (3) post-treatment stage:
when the temperature was lowered to 70 ℃, 9 parts by weight of an aqueous solution of t-butyl hydroperoxide having a concentration of 11% by weight was added to the reaction vessel;
when the temperature is reduced to 65 ℃, 19 parts by weight of a 5 percent (weight) sodium formaldehyde sulfoxylate aqueous solution is added into the reaction kettle;
when the temperature was lowered to 61 ℃, 20 parts by weight of an aqueous solution containing OT-75 at a concentration of 4.4% by weight and polyoxypropylene glycerol ether at a concentration of 1.9% by weight was added to the reaction vessel;
when the temperature is reduced to 56 ℃, adding 5.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 51 ℃, adding 3.2 parts by weight of silane coupling agent into the reaction kettle;
when the temperature is reduced to 49 ℃, adding 0.8 weight part of a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one into the reaction kettle;
when the temperature is reduced to 46 ℃, discharging.
The initial adhesion, peel strength and permanent adhesion of this example were tested by the following methods:
the initial adhesion test method is carried out according to GB/T4852-2002 "180 DEG initial adhesion test method (ball-rolling method) for pressure-sensitive adhesive tapes.
Peel Strength measurement A method for measuring the peel strength of an adhesive tape (JJG 139/1999) was carried out in accordance with GB/T2792-1998 method for testing the 180 DEG peel strength of an adhesive tape.
The permanent adhesion test was carried out in accordance with GB/T4851-1998 "method for testing the permanent adhesion of pressure-sensitive adhesive tapes at 180 ℃.
The test results are given in the following table:
| examples | Initial tack (#) | Peel strength (N/25mm) | Permanent adhesive force (h) | Appearance of the product |
| 1 | 6 | 2.6 | 24 | Is transparent |
| 2 | 7 | 2.8 | 23 | Is transparent |
| 3 | 7 | 2.9 | 22 | Is transparent |
| 4 | 8 | 2.8 | 22 | Is transparent |
| 5 | 8 | 2.5 | 23 | Is transparent |
As can be seen from the above table, the adhesive is light white, and has an initial adhesion of 6 to 8#, a peel strength of 2.5 to 2.9(N/25mm), and a permanent adhesion of 22 to 24 hours.
Experimental data: the automobile glass is attached to the automobile glass, and the automobile glass comprises characters and characters, and can not be left with adhesive residue after being torn within 3 days of attachment, and the characters can not be left on the glass.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A traceless adhesive tape for glass protection, characterized by being prepared by the following method:
stirring and mixing 1000 parts by weight of adhesive and 1 part by weight of aziridine uniformly, and coating the mixture on a plastic film; the adhesive is prepared from the following raw materials in parts by weight:
80.7-101.1 parts of emulsifier;
65-80 parts of butyl acrylate;
350 parts of isooctyl acrylate 310-;
8.5-11.0 parts of acrylic acid;
6.5-8.5 parts of hydroxyethyl acrylate;
2-6 parts of vinyl acetate;
methyl methacrylate 1.5-4.5 weight portions;
0.1-0.3 part of first silicon defoaming agent;
20-40 parts of sodium bicarbonate aqueous solution;
25-40 parts of 1.5-4 wt% potassium persulfate aqueous solution;
50-70 parts of 1.3-2.4 wt% potassium persulfate aqueous solution;
7-9 parts of 6-11 wt% of tert-butyl hydrogen peroxide aqueous solution;
2.6-5 wt% of sodium formaldehyde sulfoxylate aqueous solution 15-19;
16-20 parts of mixed aqueous solution of a wetting agent and a second defoaming agent;
3.5-5.5 parts of ammonia water;
1.8-3.2 parts of a silane coupling agent;
0.5-0.8 part of preservative;
wherein the first silicon defoamer is an organic silicon defoamer; the emulsifier comprises 0.5 to 0.9 weight percent of sulfosuccinic acid ethoxy ethanol monoester disodium salt and 0.2 to 0.5 weight percent of polyethoxylated fatty alcohol; the concentration of the wetting agent is 2 to 4.4 percent (weight), and the concentration of the second defoaming agent is 0.5 to 1.9 percent (weight); the organic silicon defoaming agent is polydimethylsiloxane, and the second defoaming agent is polyoxypropylene glycerol ether; the concentration of the sodium bicarbonate aqueous solution is 1.25 to 4 percent (weight).
2. A traceless adhesive tape for glass protection according to claim 1, wherein: the wetting agent is one of NNO, NP-10, K12, K14 and OT-75.
3. A traceless adhesive tape for glass protection according to claim 1, wherein: the preservative is one or a mixture of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone.
4. A processing technology of a traceless adhesive tape for glass protection is characterized by comprising the following steps: 1000 parts by weight of the adhesive according to any one of claims 1 to 3 and 1 part by weight of aziridine are mixed homogeneously with stirring and applied to a plastic film having a thickness of from 25 to 30um within 6 to 9 hours, the total thickness of the adhesive tape being from 48 to 55 um.
5. The process of claim 4, wherein the adhesive comprises the following steps:
(1) adding 0.5-0.7 weight part of sulfosuccinic acid ethoxy ethanol monoester disodium salt, 0.2-0.4 weight part of polyethoxylated fatty alcohol and 80-100 weight parts of deionized water into a reaction kettle, mixing, adding into an emulsifying tank, and stirring for 10-15 minutes;
(2) adding 65-80 parts by weight of butyl acrylate, 310-350 parts by weight of isooctyl acrylate, 8.5-11.0 parts by weight of acrylic acid, 6.5-8.5 parts by weight of hydroxyethyl acrylate, 2-6 parts by weight of vinyl acetate, 1.5-4.5 parts by weight of methyl acrylate and 0.1-0.3 part by weight of organic silicon defoamer into a container, fully mixing, adding into an emulsifying tank containing the solution in the step (1), and uniformly stirring to form a pre-emulsion;
(3) adding 20-40 parts by weight of sodium bicarbonate aqueous solution with the concentration of 1.25% -4% (weight) into the reaction kettle at the temperature of 50-65 ℃;
(4) continuously heating the reaction kettle, adding 25-40 parts by weight of 1.5% -4% (weight) potassium persulfate aqueous solution into the reaction kettle at the temperature of 70-85 ℃, and stirring for 5-10 minutes to fully mix; dripping the pre-emulsion formed in the step (2) and 50-70 parts by weight of 1.3% -2.4% (weight) of potassium persulfate aqueous solution into the reaction kettle simultaneously within 3-5 hours by adopting a titration mode and stirring, and continuing stirring for 1.5-3 hours after finishing dripping, wherein the temperature is kept at 80-86 ℃;
(5) and (3) post-treatment stage:
when the temperature is reduced to 65-70 ℃, adding 7-9 parts by weight of tert-butyl hydrogen peroxide aqueous solution with the concentration of 6% -11% (weight) into the reaction kettle;
when the temperature is reduced to 61-65 ℃, adding 15-19 parts by weight of sodium formaldehyde sulfoxylate aqueous solution with the concentration of 2.6-5 percent (weight) into the reaction kettle;
when the temperature is reduced to 57-61 ℃, adding 16-20 parts by weight of a mixed aqueous solution of a wetting agent and a second defoaming agent into the reaction kettle, wherein the concentration of the wetting agent is 2-4.4 percent (weight), and the concentration of the second defoaming agent is 0.5-1.9 percent (weight);
when the temperature is reduced to 54-56 ℃, adding 3.5-5.5 parts by weight of ammonia water into the reaction kettle;
when the temperature is reduced to 49-51 ℃, adding 1.8-3.2 parts by weight of silane coupling agent into the reaction kettle;
when the temperature is reduced to 47-49 ℃, adding 0.5-0.8 weight part of preservative into the reaction kettle;
when the temperature is reduced to 44-46 ℃, discharging.
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| CN201711122583.5A CN107858116B (en) | 2017-11-14 | 2017-11-14 | Traceless adhesive tape for glass protection and processing technology thereof |
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| JP2020105406A (en) * | 2018-12-27 | 2020-07-09 | 日東電工株式会社 | Preparation method of adhesive composition, manufacturing method of protective sheet and manufacturing method of glass unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365331A (en) * | 1976-11-25 | 1978-06-10 | Nitto Electric Ind Co Ltd | Production of surface protective sheets |
| CN101233203A (en) * | 2005-08-23 | 2008-07-30 | 日东电工株式会社 | Adhesive sheet for glass protection and protective film for automobile glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167773B (en) * | 2011-01-24 | 2013-01-16 | 南京夜视丽精细化工有限责任公司 | Acrylic acid emulsion and functional acrylic acid emulsion for unshadowed protective film |
| CN103965815A (en) * | 2014-05-27 | 2014-08-06 | 张家港康得新光电材料有限公司 | Ultralow-viscosity pressure-sensitive adhesive and ultralow-viscosity protective film |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365331A (en) * | 1976-11-25 | 1978-06-10 | Nitto Electric Ind Co Ltd | Production of surface protective sheets |
| CN101233203A (en) * | 2005-08-23 | 2008-07-30 | 日东电工株式会社 | Adhesive sheet for glass protection and protective film for automobile glass |
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