CN112920752A - PUR adhesive for bonding polycarbonate substrate and use method thereof - Google Patents
PUR adhesive for bonding polycarbonate substrate and use method thereof Download PDFInfo
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- CN112920752A CN112920752A CN202110391280.3A CN202110391280A CN112920752A CN 112920752 A CN112920752 A CN 112920752A CN 202110391280 A CN202110391280 A CN 202110391280A CN 112920752 A CN112920752 A CN 112920752A
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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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/10—Epoxy resins modified by unsaturated compounds
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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
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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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- 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
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
-
- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a PUR adhesive for bonding a polycarbonate substrate, which comprises the following raw materials in parts by mass: 10-20 parts of isobornyl acrylate, 20-30 parts of isobornyl methacrylate, 20-30 parts of tripropylene glycol diacrylate, 10-20 parts of hexanediol diacrylate, 10-20 parts of trimethylolpropane triacrylate, 10-20 parts of epoxy acrylate, 10-20 parts of polyurethane acrylate, 10-20 parts of polyether acrylate and 10-20 parts of polyester acrylate; the invention can obviously reduce the internal stress of the coating, reduce the volume shrinkage rate of the coating, improve the characteristic indexes of adhesive force, shrinkage rate, impact resistance, scratch resistance and weather resistance of the radiation curing coating to a certain extent, simultaneously does not reduce the hardness and flexibility of the radiation curing coating, improves the impact resistance of the cured adhesive, and is used for improving the binding property between the decorative frame and the middle frame and improving the adhesion between the decorative frame and the middle frame to a certain extent by clamping of the clamp.
Description
Technical Field
The invention belongs to the technical field of glue for mobile phone production, and particularly relates to a PUR adhesive for bonding polycarbonate substrates and a using method thereof.
Background
With the rapid growth and development of IT technology and the rise of internet services, smart phones are one of the fastest-developing electronic products in recent years. Due to the requirement for appearance and the protection of the screen, many mobile phone manufacturers add a decorative frame when designing the mobile phone. The decoration frame is arranged between the middle frame and the mobile phone screen, the material of the decoration frame is usually engineering plastic Polycarbonate (PC), the polycarbonate is a high molecular polymer containing carbonate groups in molecular chains, and the polycarbonate can be divided into various types such as aliphatic, aromatic, aliphatic-aromatic and the like according to the structure of the ester groups; the aliphatic and aliphatic-aromatic polycarbonates have low mechanical properties, which limits their application in engineering plastics, and the bonding between the decorative frame and the middle frame is performed by glue.
However, in the prior art, quick-dry glue is generally used as glue for bonding the decoration frame and the middle frame, the bonding speed of the quick-dry glue is high, but the cleanliness of the surfaces of the decoration frame and the middle frame to be bonded is high, the bonding property between the decoration frame and the middle frame is poor if the surface cleanliness is not achieved, and the surface of the frame is whitish and hard after the quick-dry glue is bonded, so that the decoration frame and the middle frame are brittle, and the impact performance is reduced.
Therefore, the PUR adhesive for bonding the polycarbonate substrate and the using method thereof are provided to solve the problems in the prior art, so that the bonding property and the impact resistance of the adhesive are improved to a certain extent.
Disclosure of Invention
The invention aims to provide a PUR adhesive for bonding a polycarbonate substrate and a using method thereof, and aims to solve the problems that in the prior art, quick-drying glue is generally used as the glue for bonding between a decorative frame and a middle frame, the bonding speed of the quick-drying glue is high, but the cleanliness requirements of the surfaces of the decorative frame and the middle frame to be bonded are high, the bonding performance between the decorative frame and the middle frame is poor if the surface cleanliness is not achieved, and the surface of the frame is white and hard after the quick-drying glue is bonded, so that the decorative frame and the middle frame are brittle and the impact performance is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a PUR adhesive for bonding a polycarbonate substrate comprises the following raw materials in parts by mass: 10-20 parts of isobornyl acrylate, 20-30 parts of isobornyl methacrylate, 20-30 parts of tripropylene glycol diacrylate, 10-20 parts of hexanediol diacrylate, 10-20 parts of trimethylolpropane triacrylate, 10-20 parts of epoxy acrylate, 10-20 parts of polyurethane acrylate, 10-20 parts of polyether acrylate, 10-20 parts of polyester acrylate, 10-20 parts of acrylic resin, 15-30 parts of diluent, 5-10 parts of plasticizer, 5-10 parts of anti-aging agent, 10-20 parts of stabilizer, 15-20 parts of flame retardant, 5-10 parts of defoaming agent and 5-10 parts of mildew preventive.
Preferably, the feed comprises the following raw materials in parts by mass: 10 parts of isobornyl acrylate, 20 parts of isobornyl methacrylate, 20 parts of tripropylene glycol diacrylate, 10 parts of hexanediol diacrylate, 10 parts of trimethylolpropane triacrylate, 10 parts of epoxy acrylate, 10 parts of polyurethane acrylate, 10 parts of polyether acrylate, 10 parts of polyester acrylate, 10 parts of acrylic resin, 15 parts of diluent, 5 parts of plasticizer, 5 parts of anti-aging agent, 10 parts of stabilizer, 15 parts of flame retardant, 5 parts of defoaming agent and 5 parts of mildew preventive.
Preferably, the feed comprises the following raw materials in parts by mass: 15 parts of isobornyl acrylate, 15 parts of isobornyl methacrylate, 15 parts of tripropylene glycol diacrylate, 15 parts of hexanediol diacrylate, 15 parts of trimethylolpropane triacrylate, 15 parts of epoxy acrylate, 15 parts of polyurethane acrylate, 15 parts of polyether acrylate, 15 parts of polyester acrylate, 15 parts of acrylic resin, 28 parts of diluent, 8 parts of plasticizer, 8 parts of anti-aging agent, 15 parts of stabilizer, 18 parts of flame retardant, 8 parts of defoaming agent and 8 parts of mildew preventive.
Preferably, the feed comprises the following raw materials in parts by mass: 20 parts of isobornyl acrylate, 30 parts of isobornyl methacrylate, 30 parts of tripropylene glycol diacrylate, 20 parts of hexanediol diacrylate, 20 parts of trimethylolpropane triacrylate, 20 parts of epoxy acrylate, 20 parts of urethane acrylate, 20 parts of polyether acrylate, 20 parts of polyester acrylate, 20 parts of acrylic resin, 30 parts of a diluent, 10 parts of a plasticizer, 10 parts of an anti-aging agent, 20 parts of a stabilizer, 20 parts of a flame retardant, 10 parts of an antifoaming agent and 10 parts of a mildew preventive.
Preferably, the diluent is cyclohexanone, and the plasticizer is phthalate diester, and the plasticizer is used for increasing the elasticity, the resistance and the service life of the adhesive.
Preferably, the anti-aging agent is polytetrafluoroethylene, the stabilizer is sodium vinyl sulfonate emulsion, and the stabilizer is used for controlling the operating viscosity of the glue, giving the glue proper water retention property, improving the stability and preventing the corruption phenomenon caused by hydrolysis after a long time.
Preferably, the flame retardant is tetrabromophthalic anhydride diol, the defoaming agent is organic siloxane, the mildew preventive is ammonium persulfate, and the mildew preventive is used for preventing mildew pollution generated when the viscose is used for a long time and reducing product deterioration.
A method for using the PUR adhesive for bonding the polycarbonate substrate is characterized in that: the method comprises the following steps:
s1, fixing the middle frame and the decoration frame, attaching one side of the decoration frame to one side of the middle frame, aligning the glue dispensing positions of the decoration frame and the middle frame, and fixing the decoration frame and the middle frame by using a clamp;
s2, dispensing, namely dispensing the adhesive between the decoration frame and the middle frame fixed by the clamp by a dispenser;
s3, solidifying the glue, placing the decoration frame and the middle frame fixed by the clip after glue dispensing in order, naturally drying and solidifying the decoration frame and the middle frame, and taking down the clip after the glue is solidified.
Preferably, when the clamp is clamped in the step 1, the rubber pads are fixed on the clamping plates of the clamp, so that the two rubber pads are respectively attached to the glass cover plate and the middle frame, and the clamp is prevented from being directly clamped on the glass cover plate, and the surface of the glass cover plate is prevented from being scratched.
Preferably, the middle frame and the decorative frame in the steps 1-3 are made of polycarbonate materials, and one side of the decorative frame is attached to one side of the mobile phone glass cover plate.
Compared with the prior art, the PUR adhesive for bonding the polycarbonate substrate and the using method thereof provided by the invention have the following advantages:
the invention mainly comprises isobornyl acrylate, isobornyl methacrylate, tripropylene glycol diacrylate, hexanediol diacrylate, trimethylolpropane triacrylate, a diluent, a plasticizer, an anti-aging agent, a stabilizer, a flame retardant, a defoaming agent, a mildew preventive, epoxy acrylate, polyurethane acrylate, polyether acrylate, polyester acrylate and acrylic resin, the internal stress of the coating can be obviously reduced by increasing the epoxy acrylate, the volume shrinkage rate of the coating is reduced, the characteristic indexes of the adhesive force, the shrinkage rate, the impact resistance, the scratch resistance and the weather resistance of the radiation curing coating are improved to a certain extent, simultaneously the hardness and the flexibility of the radiation curing coating are not reduced, the impact resistance of the cured adhesive is improved, when in use, one side of a decorative frame is attached to one side of a middle frame, and then the glue dispensing positions of the decorative frame and the middle frame are aligned, the decorative frame and the middle frame are fixed through the clips, the glue dispensing position between the decorative frame and the middle frame after the clips are fixed is subjected to glue dispensing operation through the glue dispenser, the decorative frame and the middle frame fixed through the clips after glue dispensing are placed in order, natural air drying and curing are performed, the clips are taken down after glue curing, and the decorative frame and the middle frame are clamped through the clips to increase the bonding performance between the decorative frame and the middle frame and improve the bonding performance between the decorative frame and the middle frame to a certain extent.
Drawings
FIG. 1 is a flow chart of a method of use of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a PUR adhesive for bonding a polycarbonate substrate, which comprises the following raw materials in parts by mass: 10 parts of isobornyl acrylate, 20 parts of isobornyl methacrylate, 20 parts of tripropylene glycol diacrylate, 10 parts of hexanediol diacrylate, 10 parts of trimethylolpropane triacrylate, 10 parts of epoxy acrylate, 10 parts of polyurethane acrylate, 10 parts of polyether acrylate, 10 parts of polyester acrylate, 10 parts of acrylic resin, 15 parts of diluent, 5 parts of plasticizer, 5 parts of anti-aging agent, 10 parts of stabilizer, 15 parts of flame retardant, 5 parts of defoaming agent and 5 parts of mildew preventive;
wherein the diluent is cyclohexanone, and the plasticizer is phthalic diester, and the plasticizer is used for increasing the elasticity, the resistance and the service life of the adhesive;
the anti-aging agent is polytetrafluoroethylene, the stabilizer is sodium vinyl sulfonate emulsion, and the stabilizer is used for controlling the operating viscosity of glue, giving proper water retention to the glue, improving the stability and preventing the corruption phenomenon caused by hydrolysis after a long time;
the adhesive is characterized in that the flame retardant is tetrabromophthalic anhydride diol, the defoaming agent is organic siloxane, the mildew preventive is ammonium persulfate, and the mildew preventive is used for preventing mildew pollution generated when the adhesive is used for a long time and reducing deterioration of products;
a method for using the PUR adhesive for bonding the polycarbonate substrate, which comprises the following steps:
s1, fixing the middle frame and the decoration frame, attaching one side of the decoration frame to one side of the middle frame, aligning the glue dispensing positions of the decoration frame and the middle frame, and fixing the decoration frame and the middle frame by using a clamp;
s2, dispensing, namely dispensing the adhesive between the decoration frame and the middle frame fixed by the clamp by a dispenser;
s3, solidifying glue, orderly placing the decoration frame and the middle frame fixed by the clip after glue dispensing, naturally drying and solidifying, and taking down the clip after the glue is solidified;
when the clamp is clamped in the step 1, rubber pads are fixed on the clamping plates of the clamp, so that the two rubber pads are respectively attached to the glass cover plate and the middle frame, and the clamp is prevented from being directly clamped on the glass cover plate, and the surface of the glass cover plate is prevented from being scratched;
the materials used by the middle frame and the decorative frame in the step 1-3 are both made of polycarbonate, one side of the decorative frame is attached to one side of the mobile phone glass cover plate, the polycarbonate is a high polymer containing carbonate groups in molecular chains, and can be divided into various types such as aliphatic, aromatic, aliphatic-aromatic and the like according to the structure of the ester groups, and the polycarbonate has the advantages of high strength, fatigue resistance, stable size, little change under high temperature conditions and good insulativity;
in conclusion, the PUR adhesive can obviously reduce the internal stress of the coating by adding the epoxy acrylate, reduce the volume shrinkage rate of the coating, improve the characteristic indexes of adhesive force, shrinkage rate, impact resistance, scratch resistance and weather resistance of the radiation curing coating to a certain extent, simultaneously does not reduce the hardness and flexibility of the radiation curing coating, and improves the impact resistance of the cured adhesive; through the centre gripping of clip for increase the associativity between dress trim and the center, improve the adhesion between dress trim and the center to a certain extent.
Example 2
Different from the embodiment 1, the material comprises the following raw materials in parts by mass: 15 parts of isobornyl acrylate, 15 parts of isobornyl methacrylate, 15 parts of tripropylene glycol diacrylate, 15 parts of hexanediol diacrylate, 15 parts of trimethylolpropane triacrylate, 15 parts of epoxy acrylate, 15 parts of polyurethane acrylate, 15 parts of polyether acrylate, 15 parts of polyester acrylate, 15 parts of acrylic resin, 28 parts of diluent, 8 parts of plasticizer, 8 parts of anti-aging agent, 15 parts of stabilizer, 18 parts of flame retardant, 8 parts of defoaming agent and 8 parts of mildew preventive;
in conclusion, the PUR adhesive added with the epoxy acrylate can obviously reduce the internal stress of the coating, reduce the volume shrinkage rate of the coating, improve the characteristic indexes of the adhesive force, shrinkage rate, impact resistance, scratch resistance and weather resistance of the radiation curing coating to a certain extent, and simultaneously does not reduce the hardness and flexibility of the radiation curing coating.
Example 3
Different from the embodiment 1 and the embodiment 2, the material comprises the following raw materials in parts by mass: 20 parts of isobornyl acrylate, 30 parts of isobornyl methacrylate, 30 parts of tripropylene glycol diacrylate, 20 parts of hexanediol diacrylate, 20 parts of trimethylolpropane triacrylate, 20 parts of epoxy acrylate, 20 parts of urethane acrylate, 20 parts of polyether acrylate, 20 parts of polyester acrylate, 20 parts of acrylic resin, 30 parts of a diluent, 10 parts of a plasticizer, 10 parts of an anti-aging agent, 20 parts of a stabilizer, 20 parts of a flame retardant, 10 parts of an antifoaming agent and 10 parts of a mildew preventive.
The working principle is as follows: when the adhesive is used, one side of the decoration frame is attached to one side of the middle frame, the adhesive dispensing positions of the decoration frame and the middle frame are aligned and fixed by the clips, the adhesive dispensing position between the decoration frame and the middle frame after the clips are fixed is subjected to adhesive dispensing operation through the adhesive dispensing machine, the decoration frame and the middle frame fixed by the clips after the adhesive dispensing are placed in order, natural air drying and curing are carried out, the clips are taken down after the adhesive is cured, the clip is clamped by the clips and used for increasing the binding property between the decoration frame and the middle frame, and the adhesion between the decoration frame and the middle frame is improved to a certain extent; in addition, the PUR adhesive can obviously reduce the internal stress of the coating, reduce the volume shrinkage rate of the coating by adding the epoxy acrylate, improve the characteristic indexes of adhesive force, shrinkage rate, impact resistance, scratch resistance and weather resistance of the radiation curing coating to a certain extent, simultaneously does not reduce the hardness and flexibility of the radiation curing coating, and improves the impact resistance of the cured adhesive.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A PUR adhesive for bonding polycarbonate substrates, characterized in that: the composite material comprises the following raw materials in parts by weight: 10-20 parts of isobornyl acrylate, 20-30 parts of isobornyl methacrylate, 20-30 parts of tripropylene glycol diacrylate, 10-20 parts of hexanediol diacrylate, 10-20 parts of trimethylolpropane triacrylate, 10-20 parts of epoxy acrylate, 10-20 parts of polyurethane acrylate, 10-20 parts of polyether acrylate, 10-20 parts of polyester acrylate, 10-20 parts of acrylic resin, 15-30 parts of diluent, 5-10 parts of plasticizer, 5-10 parts of anti-aging agent, 10-20 parts of stabilizer, 15-20 parts of flame retardant, 5-10 parts of defoaming agent and 5-10 parts of mildew preventive.
2. The PUR adhesive for bonding polycarbonate substrates according to claim 1, wherein the PUR adhesive comprises: the composite material comprises the following raw materials in parts by weight: 10 parts of isobornyl acrylate, 20 parts of isobornyl methacrylate, 20 parts of tripropylene glycol diacrylate, 10 parts of hexanediol diacrylate, 10 parts of trimethylolpropane triacrylate, 10 parts of epoxy acrylate, 10 parts of polyurethane acrylate, 10 parts of polyether acrylate, 10 parts of polyester acrylate, 10 parts of acrylic resin, 15 parts of diluent, 5 parts of plasticizer, 5 parts of anti-aging agent, 10 parts of stabilizer, 15 parts of flame retardant, 5 parts of defoaming agent and 5 parts of mildew preventive.
3. The PUR adhesive for bonding polycarbonate substrates according to claim 1, wherein the PUR adhesive comprises: the composite material comprises the following raw materials in parts by weight: 15 parts of isobornyl acrylate, 15 parts of isobornyl methacrylate, 15 parts of tripropylene glycol diacrylate, 15 parts of hexanediol diacrylate, 15 parts of trimethylolpropane triacrylate, 15 parts of epoxy acrylate, 15 parts of polyurethane acrylate, 15 parts of polyether acrylate, 15 parts of polyester acrylate, 15 parts of acrylic resin, 28 parts of diluent, 8 parts of plasticizer, 8 parts of anti-aging agent, 15 parts of stabilizer, 18 parts of flame retardant, 8 parts of defoaming agent and 8 parts of mildew preventive.
4. The PUR adhesive for bonding polycarbonate substrates according to claim 1, wherein the PUR adhesive comprises: the composite material comprises the following raw materials in parts by weight: 20 parts of isobornyl acrylate, 30 parts of isobornyl methacrylate, 30 parts of tripropylene glycol diacrylate, 20 parts of hexanediol diacrylate, 20 parts of trimethylolpropane triacrylate, 20 parts of epoxy acrylate, 20 parts of urethane acrylate, 20 parts of polyether acrylate, 20 parts of polyester acrylate, 20 parts of acrylic resin, 30 parts of a diluent, 10 parts of a plasticizer, 10 parts of an anti-aging agent, 20 parts of a stabilizer, 20 parts of a flame retardant, 10 parts of an antifoaming agent and 10 parts of a mildew preventive.
5. The PUR adhesive for bonding polycarbonate substrates according to any one of claims 1 to 4, wherein: the diluent is set to be cyclohexanone, the plasticizer is set to be phthalic diester, and the plasticizer is used for increasing elasticity, resistance and service life of the adhesive.
6. The PUR adhesive for bonding polycarbonate substrates according to any one of claims 1 to 4, wherein: the anti-aging agent is polytetrafluoroethylene, the stabilizer is sodium vinyl sulfonate emulsion, and the stabilizer is used for controlling the operating viscosity of the glue, giving the glue proper water retention property, improving the stability and preventing the corruption phenomenon caused by hydrolysis after a long time.
7. The PUR adhesive for bonding polycarbonate substrates according to any one of claims 1 to 4, wherein: the flame retardant is tetrabromophthalic anhydride diol, the defoaming agent is organic siloxane, the mildew preventive is ammonium persulfate, and the mildew preventive is used for preventing mildew pollution generated when the viscose is used for a long time and reducing the deterioration of products.
8. A method for using the PUR adhesive for bonding polycarbonate substrates, which is disclosed in any one of claims 1 to 4, is characterized in that: the method comprises the following steps:
s1, fixing the middle frame and the decoration frame, attaching one side of the decoration frame to one side of the middle frame, aligning the glue dispensing positions of the decoration frame and the middle frame, and fixing the decoration frame and the middle frame by using a clamp;
s2, dispensing, namely dispensing the adhesive between the decoration frame and the middle frame fixed by the clamp by a dispenser;
s3, solidifying the glue, placing the decoration frame and the middle frame fixed by the clip after glue dispensing in order, naturally drying and solidifying the decoration frame and the middle frame, and taking down the clip after the glue is solidified.
9. The use of the PUR adhesive for bonding polycarbonate substrates according to claim 8, wherein the PUR adhesive comprises: when the clamp is clamped in the step 1, the rubber pads are fixed on the clamping plates of the clamp, so that the two rubber pads are respectively attached to the glass cover plate and the middle frame, and the clamp is prevented from being directly clamped on the glass cover plate, and the surface of the glass cover plate is prevented from being scratched.
10. The use of the PUR adhesive for bonding polycarbonate substrates according to claim 9, wherein the PUR adhesive comprises: in the step 1-3, the middle frame and the decorative frame are made of polycarbonate materials, and one side of the decorative frame is attached to one side of the mobile phone glass cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391280.3A CN112920752A (en) | 2021-04-13 | 2021-04-13 | PUR adhesive for bonding polycarbonate substrate and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391280.3A CN112920752A (en) | 2021-04-13 | 2021-04-13 | PUR adhesive for bonding polycarbonate substrate and use method thereof |
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| CN112920752A true CN112920752A (en) | 2021-06-08 |
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| CN202110391280.3A Pending CN112920752A (en) | 2021-04-13 | 2021-04-13 | PUR adhesive for bonding polycarbonate substrate and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462303A (en) * | 2021-07-09 | 2021-10-01 | 苏州市业国新材料有限公司 | High-corrosion-resistance electronic adhesive tape for lithium battery and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531041A (en) * | 2014-12-05 | 2015-04-22 | 烟台泰盛精化科技有限公司 | Polyether-type urethane acrylate UV-cured adhesive and preparation method thereof |
| CN105111998A (en) * | 2015-09-18 | 2015-12-02 | 张家港康得新光电材料有限公司 | Ultraviolet curing adhesive |
-
2021
- 2021-04-13 CN CN202110391280.3A patent/CN112920752A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531041A (en) * | 2014-12-05 | 2015-04-22 | 烟台泰盛精化科技有限公司 | Polyether-type urethane acrylate UV-cured adhesive and preparation method thereof |
| CN105111998A (en) * | 2015-09-18 | 2015-12-02 | 张家港康得新光电材料有限公司 | Ultraviolet curing adhesive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462303A (en) * | 2021-07-09 | 2021-10-01 | 苏州市业国新材料有限公司 | High-corrosion-resistance electronic adhesive tape for lithium battery and preparation method thereof |
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