CN110539961A - PUR hot melt rubber tube and packaging process and using method thereof - Google Patents

PUR hot melt rubber tube and packaging process and using method thereof Download PDF

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Publication number
CN110539961A
CN110539961A CN201910856943.7A CN201910856943A CN110539961A CN 110539961 A CN110539961 A CN 110539961A CN 201910856943 A CN201910856943 A CN 201910856943A CN 110539961 A CN110539961 A CN 110539961A
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CN
China
Prior art keywords
pur hot
hot melt
melt adhesive
filler layer
styrene
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910856943.7A
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Chinese (zh)
Inventor
许逊福
刘涛
曹阳
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Xiamen Voitoo Technology Co Ltd
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Xiamen Voitoo Technology Co Ltd
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Priority to CN201910856943.7A priority Critical patent/CN110539961A/en
Priority to PCT/CN2019/112634 priority patent/WO2021046974A1/en
Publication of CN110539961A publication Critical patent/CN110539961A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/28—Methods or devices for controlling the quantity of the material fed or filled by weighing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/28—Caps combined with stoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • 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
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

a PUR hot melt adhesive tube and its packaging process and application method, the body is a hollow tubular container, the bottom of the hollow tubular container closes up and is a fine glue outlet, there is a stopper in the glue outlet; the rear part of the hollow tubular container is provided with an opening, a sealing tail cover is arranged at the opening, a PUR hot melt adhesive layer is arranged in the hollow tubular container and close to the glue outlet, and one end of the PUR hot melt adhesive layer facing the sealing tail cover is provided with at least one isolated filler layer; by adopting the scheme, the insulating filler layer isolates the chemical crosslinking reaction of water vapor in the air to the PUR hot melt adhesive, so that the skinning phenomenon is avoided, and the quality guarantee period is prolonged; the technical scheme is simple and feasible in process, materials are easy to purchase, but the effect is particularly obvious, an excellent technical scheme is provided for improving the industrial level of the whole electronic PUR industry, and the method has a wide development prospect.

Description

PUR hot melt rubber tube and packaging process and using method thereof
Technical Field
The invention relates to the field of adhesive packaging, in particular to a PUR hot-melt adhesive pipe, a packaging process and a using method thereof.
Background
the PUR hot melt adhesive is totally called as moisture curing reaction type polyurethane hot melt adhesive, and the action mechanism of the PUR hot melt adhesive is that a polyurethane prepolymer reacts with moisture in the air, and is cured and crosslinked to form a stable chemical structure. For example, the PUR hot melt adhesive packaged by 30mL generally has a shelf life of 6 months. When the shelf life is prolonged, the surface of the product is thick, the viscosity is increased, and the performance is obviously reduced. The most important factor influencing the shelf life of the PUR is the part of the rubber tube which is not filled with glue, and trace water in gas reacts with the PUR to cause the curing and crosslinking of the part of the PUR before the PUR is used. It is particularly pointed out that the small-package PUR (a 30mL hose only contains a small amount of PUR, such as 10g or 20g, due to the special requirements of customers) has more residual moisture, so the small-package PUR has shorter shelf life, only 3-4 months, and the use of the small-package PUR is seriously influenced due to the reasons. The object of the present invention is to solve the problem of short shelf life of PURs, especially small-package PURs.
Disclosure of Invention
the first purpose of the invention is to provide the PUR hot melt adhesive pipe which has good sealing performance and avoids the surface skinning of the PUR hot melt adhesive.
The second purpose of the invention is to provide a PUR hot melt adhesive pipe packaging process and a using method, wherein the PUR hot melt adhesive pipe packaging process has good sealing performance and avoids surface skinning of the PUR hot melt adhesive.
In order to achieve the above purpose, the solution of the invention is: a PUR hot melt adhesive pipe, the body is a hollow tubular container, the bottom of the hollow tubular container closes up and is a fine glue outlet, the glue outlet is plugged with a stopper; the cavity tubular container rear portion is an uncovered, and this uncovered department is equipped with sealed tail-hood, has PUR hot melt adhesive layer, its characterized in that near a jiao kou department in the cavity tubular container: and at least one isolation filler layer is arranged at one end of the PUR hot melt adhesive layer facing the sealing tail cover.
furthermore, the isolation filler layer is not compatible with the PUR hot melt adhesive layer, has a moisture permeability of less than 15g/(m2 × d), and softens at 80-120 ℃ to have a hardness of 2-20A or has fluidity at 80-120 ℃.
Further, the isolation filler layer is one of a UV adhesive isolation filler layer, an APAO isolation filler layer, a polypropylene isolation filler layer or an APAO-polypropylene mixture isolation filler layer.
further, the UV adhesive isolation filler layer is a cured UV adhesive isolation filler layer, and the Tg point of the used UV adhesive is-30-60 ℃.
furthermore, the thickness of the UV adhesive isolation filler layer is 0.1-10 mm.
Furthermore, the softening point of the APAO material used in the APAO isolation filler layer is between 40 and 120 ℃, and the thickness of the APAO isolation filler layer is 0.1 to 50 mm.
furthermore, the polypropylene isolation filler layer is made of polypropylene materials with the softening point of 40-120 ℃ and the thickness of 0.1-50 mm.
Furthermore, the APAO-polypropylene mixture is used for isolating the filler layer, the softening point of the APAO-polypropylene mixture is 40-120 ℃, and the thickness of the APAO-polypropylene mixture is 0.1-50 mm.
Further, the isolation filler layer is made of amorphous polyolefin, synthetic rubber or ethylene vinyl acetate.
Further, the amorphous polyolefin is one or more of polyethylene, polypropylene, polybutylene, ethylene-propylene copolymer, propylene-butylene copolymer or ethylene-propylene-butylene terpolymer.
further, the synthetic rubber is one or more of styrene-butadiene, styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene-propylene-styrene or styrene-ethylene-butylene-styrene, and a crosslinked material thereof.
Further, the insulation filler layer and the PUR hot melt adhesive layer are different in color.
Furthermore, the bottom of the hollow tubular container is converged into a fine needle-shaped glue outlet protruding outwards, a circle of bolt connection ports protruding outwards surrounds the glue outlet, and the bolt connection ports are provided with internal threads; the plug is characterized in that two rings of annular sleeves are protruded towards the same direction from the bottom cover of the plug and are called an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are distributed in a concentric circle mode by the center of the bottom cover, the outer diameter of the inner sleeve corresponds to the inner diameter of a screw joint of the glue outlet, threads are arranged on the outer wall of the inner sleeve, the inner sleeve of the plug is screwed into a gap between the glue outlet and the screw joint, after the inner sleeve is screwed with the screw joint through the threads, the glue outlet is abutted against the center of the bottom cover, and the outer.
Further, bottom center department is equipped with a protruding grain, and the stopper spiro union is in going out gluey mouthful back, and this protruding grain top is leaned on in going out gluey mouthful to in filling in out gluey mouthful, the top is leaned on in PUR hot melt adhesive layer bottom.
furthermore, the volume of the hollow tubular container is 10-50 ml.
Further, the PUR hot melt adhesive layer in the hollow tubular container has an adhesive amount of 5-60 g.
a PUR hot melt adhesive tube packaging process is characterized in that: filling heated liquid PUR hot melt adhesive into a hollow tubular container from a bottom adhesive outlet, filling a preset weight, and screwing a plug on the adhesive outlet; filling liquefied insulating filler into the hollow tubular container from the upper opening, covering the sealed tail cover after filling to required thickness, and cooling.
further, the isolation filler is UV glue, and at the moment, after the isolation filler is filled, the isolation filler is irradiated for 1-10 seconds under the condition of using 405nm ultraviolet light of 200mW, and then irradiated for 1-10 seconds under the condition of using 365nm ultraviolet light of 200mW, so that the UV glue is cured to form a cured UV glue isolation filler layer.
Further, the isolation filler is one or a mixture of APAO and polypropylene, and the isolation filler needs to be heated to be liquefied before filling.
further, the isolation filler is one of amorphous polyolefin, synthetic rubber or ethylene vinyl acetate.
Further, the amorphous polyolefin is one or more of polyethylene, polypropylene, polybutylene, ethylene-propylene copolymer, propylene-butylene copolymer or ethylene-propylene-butylene terpolymer.
Further, the synthetic rubber is one or more of styrene-butadiene, styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene-propylene-styrene or styrene-ethylene-butylene-styrene, and a crosslinked material thereof.
A PUR hot melt adhesive pipe using method is characterized in that: heating the PUR hot melt adhesive pipe to 80-120 ℃, wherein the isolated filler layer becomes soft or liquid, the bonding force with the hollow tubular container is rapidly reduced, and when the sealing tail cover is opened and air pressure is added, the PUR hot melt adhesive which becomes liquid is discharged from the adhesive outlet at the lower part for use.
After the scheme is adopted, the material used by the insulating filler layer cannot be compatible with the PUR hot melt adhesive, and is in a softened state (or a flowing state) in the packaging process, and the insulating filler layer and the PUR hot melt adhesive are solidified after packaging, so that the insulating filler layer and the PUR hot melt adhesive can be kept in a mutually-laminated but non-fused state, gaps are avoided, air bubbles are avoided, the chemical reaction of water vapor in the air on the PUR hot melt adhesive is isolated, and the quality guarantee period is prolonged; the technical scheme is simple and feasible in process, materials are easy to purchase, but the effect is particularly obvious, an excellent technical scheme is provided for improving the industrial level of the whole electronic PUR industry, and the method has a wide development prospect.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention.
Detailed Description
the invention is described in detail below with reference to the figures and the specific embodiments.
the first embodiment is as follows:
A UV glue isolation filler is characterized in that:
The material is prepared from the following raw materials in percentage by weight:
30-60% of hydrophobic acrylate prepolymer;
35-60% of an active diluent;
2-7% of a photoinitiator;
0-3% of a silane coupling agent.
The hydrophobic acrylate prepolymer is CN301, CN307, CN310NS and CN9014NS of Saedoma, USA; SUO-8130, SUO-H8130, SUO-8628, and SUO-H8628, all of which are available from SHIN-A of KoreA; one or a mixture of several of them.
The active diluent is one or a mixture of more of ethylene glycol dimethacrylate, cyclohexane dimethanol diacrylate, dodecyl acrylate, tetrahydrofuran acrylate, 2-phenoxyethyl acrylate, isooctyl acrylate, trimethylolpropane formal acrylate, isobornyl acrylate, dicyclopentadiene methacrylate and N, N-dimethylacrylamide.
the photoinitiator is one or a mixture of more of 2-hydroxy-2-methyl-1-phenyl acetone, 1-hydroxycyclohexyl benzophenone, bis (2, 4, 6-trimethylbenzoyl) phenyl phosphorus oxide, alpha' -dimethylbenzoyl ketal, benzophenone, isopropyl thioxanthone, methyl o-benzoylbenzoate and 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide.
A preparation process of a UV (ultraviolet) adhesive isolation filler is characterized by comprising the following steps: accurately weighing each raw material and 35-60% of active diluent according to the weight percentage; 2-7% of photoinitiator and 0-3% of silane coupling agent; mixing the components, and stirring for 1 hour at the temperature of 25 ℃, the vacuum degree of-0.07 MPa and the rotating speed of 50 revolutions per minute until no particles exist; and then adding 30-60% of hydrophobic acrylate prepolymer, controlling the temperature at 25 ℃, vacuumizing until the vacuum degree is-0.07 MPa, stirring for 1 hour at 50 revolutions per minute, uniformly stirring, keeping out of the sun, sealing and packaging.
The three UV adhesive isolation fillers are prepared by the process and are respectively called as UV adhesive 1, UV adhesive 2 and UV adhesive 3, and the preparation steps are as follows:
1. Preparation of UV glue 1:
Accurately weighing 30g of tetrahydrofuran acrylate as each raw material according to the weight percentage; 30g of dodecyl acrylate; benzophenone, 3 g; 2g of alpha, alpha' -dimethylbenzylketal; adding the components into a double-planetary power mixing stirrer, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, and stirring at 50 revolutions per minute for 1 hour until no particles exist; and adding 35g of sartomer CN301 resin, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, stirring for 1 hour at 50 revolutions per minute, uniformly stirring to obtain the ultraviolet curing adhesive, and sealing and packaging in a dark place to obtain the UV adhesive 1.
2. Preparation of UV glue 2:
Accurately weighing 25g of isobornyl acrylate serving as each raw material according to weight percentage; 10g of dodecyl acrylate; benzophenone, 3 g; 2g of alpha, alpha' -dimethylbenzylketal; adding the components into a double-planetary power mixing stirrer, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, and stirring at 50 revolutions per minute for 1 hour until no particles exist; and adding 60g of sartomer CN307 resin, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, stirring for 1 hour at 50 revolutions per minute, uniformly stirring to obtain the ultraviolet curing adhesive, and sealing and packaging in a dark place to obtain the UV adhesive 2.
3. Preparation of UV glue 3:
Accurately weighing 30g of isobornyl acrylate serving as each raw material according to weight percentage; 10g of tetrahydrofuran acrylate; 3g of benzophenone; 2g of alpha, alpha' -dimethyl benzil ketal; silane coupling agent KH551, 3 g; adding the components into a double-planetary power mixing stirrer, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, and stirring at 50 revolutions per minute for 1 hour until no particles exist; and adding 52g of sartomer CN301 resin, controlling the temperature at 25 ℃, vacuumizing to the vacuum degree of-0.07 MPa, stirring for 1 hour at 50 revolutions per minute, uniformly stirring to obtain the ultraviolet curing adhesive, and sealing and packaging in a dark place to obtain the UV adhesive 3.
the following performance tests were performed on the three types of UV adhesives, with specific reference to table one:
TABLE-comparison of the Properties of the three UV glues
As can be seen from Table I, the properties of the three UV adhesives prepared above all meet the requirements of the patent.
As shown in fig. 1 and 2, a PUR hot melt adhesive tube 1 has a main body of a hollow tubular container 11, the hollow tubular container 11 has a volume of 30mL, a bottom of the hollow tubular container 11 is closed to form a fine adhesive outlet 12, and a plug 13 is plugged at the adhesive outlet 12; an opening 17 is formed in the upper portion of the hollow tubular container 11, a sealing tail cover 14 is arranged at the opening 17, a PUR hot melt adhesive layer 15 is arranged in the hollow tubular container 11 and close to the glue outlet 12, an isolation filler layer 16 is arranged at one end, facing the sealing tail cover 14, of the PUR hot melt adhesive layer 15, the isolation filler layer 16 is a UV glue isolation filler layer 16, the thickness of the UV glue isolation filler layer 16 is 0.1-10 mm, and the Tg point of the UV glue is-30-60 ℃.
The hollow tubular container 11 is converged at the bottom to form a fine needle-shaped glue outlet 12 protruding outwards, a circle of bolt connection ports 121 protruding outwards surrounds the glue outlet 12, and internal threads 122 are arranged on the bolt connection ports 121; the plug 13 is formed by protruding two rings of annular sleeves in the same direction from the bottom cover 131 of the plug 13, which are called an inner sleeve 132 and an outer sleeve 133, the inner sleeve and the outer sleeve are distributed in a concentric circle from the center of the bottom cover 131, wherein the outer diameter of the inner sleeve 132 corresponds to the inner diameter of the screw joint 121 of the glue outlet 12, the outer wall of the inner sleeve 132 is provided with a thread 1321, the inner sleeve 132 of the plug 13 is screwed into a gap between the glue outlet 12 and the screw joint 121, after the inner sleeve is screwed with the screw joint 121 through the thread, the glue outlet 12 abuts against the center of the bottom cover 131, and the outer sleeve 133 covers.
Bottom cover 131 center department is equipped with a protruding grain 134, and stopper 13 spiro union is behind screw connector 121, and this protruding grain 134 is filled in out in the entry of jiao kou 12, and the top leans on in the bottom of PUR hot melt adhesive layer 15, and this design is airtight effectual for the bottom of PUR hot melt adhesive layer 15 and the protruding grain 134 seamless contact of stopper 13 have thoroughly avoided the influence of atmospheric moisture to PUR hot melt adhesive layer 15 bottom.
the color of the UV adhesive isolation filler layer 16 is colorless and transparent, and the color of the PUR hot melt adhesive layer 15 is black.
The hollow tubular container 11 had a PUR hot-melt adhesive layer 15 in an amount of 10 g.
The packaging process of the PUR hot melt rubber tube 1 is as follows:
the method comprises the following steps: firstly, filling PUR hot melt adhesive with the temperature of about 110 ℃ into a hollow tubular container 11 from a bottom glue outlet 12, filling 10g of the PUR hot melt adhesive, and then filling a plug 13 into the glue outlet 12;
Step two: filling UV glue from the upper opening of the hollow tubular container 11, stopping filling when the thickness of the UV glue reaches 10mm, covering a sealing tail cover 14, irradiating for 3 seconds under the condition of using 405nm ultraviolet light of 200mW, and then irradiating for 2 seconds under the condition of using 365nm ultraviolet light of 200mW to form a cured UV glue isolation filler layer 16, further cooling, and then carrying out vacuum sealing packaging.
Because the volume of the hollow tubular container 11 is 30mL, and the filled hot melt adhesive is only 10g, more air remains in the hollow tubular container 11, and the UV adhesive used in the UV adhesive isolation filler layer 16 is not compatible with the PUR hot melt adhesive, so that the UV adhesive isolation filler layer 16 and the PUR hot melt adhesive layer 15 can be kept in a mutually attached but non-fused state in the preservation process. Meanwhile, the liquid state is liquid at normal temperature, the liquid state is favorable for better and comprehensive lamination of the UV adhesive isolation filler layer 16 and the PUR hot melt adhesive layer 15, and at the moment, after ultraviolet illumination curing, gaps are effectively avoided, and air bubbles are avoided, so that the chemical crosslinking reaction of water vapor in the air on the PUR hot melt adhesive is isolated, the skinning is avoided, and the quality guarantee period is prolonged;
in addition, as the moisture permeability of the used UV adhesive is low enough, and meanwhile, the UV adhesive isolation filler layer 16 and the pipe wall of the hollow tubular container 11 have certain bonding force, the water vapor is further prevented from permeating the PUR hot melt adhesive from the periphery of the UV adhesive isolation filler layer 16, and the effect of isolating the water vapor can be better played;
The following experimental data are now provided to verify the effectiveness of the first embodiment of this patent:
the three types of UV glues prepared in example one were used as insulating fillers to perform the above encapsulation process to obtain different PUR hot-melt adhesive tube samples, and compared with the same volume of PUR hot-melt adhesive tube comparative sample 1 (with sealing tail cap) and comparative sample 2 (without sealing tail cap) without insulating filler layer, the following properties were compared, specifically as the following table two:
Results of the skin test of the second rubber
As can be seen from the second table, the UV adhesive isolation filler layer 16 of the PUR hot melt adhesive pipe obtained by the method disclosed by the patent effectively isolates trace moisture in the air, so that almost no rubber skin is formed on the surface of the PUR hot melt adhesive in 180 days, and compared with a comparison sample 1 and a comparison sample 2 which do not have isolation filler layers, the rubber skin formation phenomenon on the surface of the PUR hot melt adhesive is greatly reduced; the performance of the PUR hot melt adhesive is further tested, after three types of UV adhesives are used for isolated filling, the increase of the adhesive strength of the PUR hot melt adhesive in 30 and 180 days is very small, the attenuation of the strength of the PUR hot melt adhesive in 30 and 180 days is also very small, and the attenuation is much smaller than that of a comparison sample 1 and a comparison sample 2 which are not subjected to any isolated filling, so that the quality guarantee period of the PUR hot melt adhesive in the PUR hot melt adhesive pipe is greatly prolonged, and the method has substantial industrial significance.
according to the using method of the PUR hot melt adhesive pipe 1, the PUR hot melt adhesive pipe 1 is heated to 80-120 ℃, at the moment, the UV adhesive isolation filler becomes soft, the bonding force with the hollow tubular container 11 is rapidly reduced, when the sealing tail cover 14 is opened and air pressure is added, the PUR hot melt adhesive becomes liquid, and the liquid PUR hot melt adhesive is discharged from the adhesive outlet 12 below for use;
In the using process of the PUR hot melt adhesive pipe, 1) the filler layer is isolated by the UV adhesive and is soft enough at about 100 ℃, so that the air pressure is not influenced to be transmitted to the PUR hot melt adhesive layer, and the PUR hot melt adhesive is discharged and used; 2) because the used UV adhesive is not compatible with the PUR hot melt adhesive, the UV adhesive isolation filler layer 16 and the PUR hot melt adhesive layer 15 can be kept in a mutually attached but non-fusion state in the process of heating to 80-120 ℃.
Example two:
As shown in fig. 1 and 2, a PUR hot melt adhesive tube 1 has a main body of a hollow tubular container 11, the hollow tubular container 11 has a volume of 42ml, a bottom of the hollow tubular container 11 is closed to form a fine adhesive outlet 12, and a plug 13 is plugged at the adhesive outlet 12; the upper part of the hollow tubular container 11 is provided with an opening 17, a sealing tail cover 14 is arranged at the opening 17, a PUR hot melt adhesive layer 15 is arranged in the hollow tubular container 11 and is close to the glue outlet 12, one end of the PUR hot melt adhesive layer 15 facing the sealing tail cover 14 is provided with an isolation filler layer 16, the isolation filler layer 16 is an APAO isolation filler layer 16, the thickness of the APAO isolation filler layer 16 is 30mm, and the softening point of an APAO material is 40-120 ℃.
The APAO insulating filler layer 16 is white in color and the PUR hot melt adhesive layer 15 is black in color.
The hollow tubular container 11 had a PUR hot-melt adhesive layer 15 in an amount of 20 g.
The PUR hot melt rubber tube 1 packaging process comprises the following steps:
The method comprises the following steps: firstly, filling PUR hot melt adhesive with the temperature of about 110 ℃ into the hollow tubular container 11 from the bottom glue outlet 12, filling 20g of the PUR hot melt adhesive, and then filling the plug 13 into the glue outlet 12;
Step two: and (3) carrying out open filling on the APAO heated to 150-200 ℃ from the upper part of the hollow tubular container 11, stopping filling when the thickness of the APAO reaches 30mm, covering the sealing tail cover 14, and cooling to form an APAO isolation filler layer 16.
Because the volume of the hollow tubular container 11 is 42ml, and the filled PUR hot melt adhesive is only 20g, more air remains in the hollow tubular container 11, and because APAO used in the APAO isolated filler layer 16 is not compatible with the PUR hot melt adhesive, the APAO isolated filler layer 16 and the PUR hot melt adhesive layer 15 can be kept in a mutually jointed but non-jointed state in the preservation process, and the softening point of the APAO material used in the position is between 40 and 120 ℃, therefore, the APAO material is in a softened or liquefied state by heating in the packaging process, the APAO isolated filler layer 16 and the PUR hot melt adhesive layer 15 are favorably and comprehensively jointed, gaps are avoided, air bubbles are avoided, the chemical crosslinking reaction of water vapor in the remaining air on the PUR hot melt adhesive is isolated, skinning is avoided, and the quality guarantee period is prolonged;
In addition, as the moisture permeability of the used APAO material is low enough, and the APAO isolation filler layer 16 and the pipe wall of the hollow tubular container 11 have certain bonding force, the water vapor is further prevented from permeating the PUR hot melt adhesive from the periphery of the APAO isolation filler layer 16, and the effect of isolating the water vapor can be better played;
The following experimental data are now provided to verify the effectiveness of example two of this patent:
Three different types of APAO materials (APAO material 1-winning Vestoplast 508; APAO material 2-winning Vestoplast 502; APAO material 3-winning Vestoplast 751) are adopted as isolation fillers to carry out the packaging process to obtain different PUR hot melt adhesive pipe samples, and the following performances are compared with a PUR hot melt adhesive pipe sample comparison sample 3 (with a sealing tail cover) and a comparison sample 4 (without a sealing tail cover) which are not added with the isolation filler layer and have the same volume, and the method is as follows:
Comparison of Performance of three different models of APAO materials
From table three, it can be seen that the three types of APAO materials used are all in accordance with the claims.
TABLE IV crust test results
As can be seen from the above table, the APAO of the PUR hot melt adhesive pipe obtained by the method disclosed by the patent effectively isolates trace moisture in the air, so that almost no rubber skin is formed on the surface of the PUR hot melt adhesive in 180 days, and compared with a comparison sample 3 and a comparison sample 4 which do not isolate the filler layer, the rubber skin forming phenomenon on the surface of the PUR hot melt adhesive is greatly reduced; the performance of the PUR hot melt adhesive is further tested, after the three APAO materials are used for isolation filling, the increase of the viscosity of the PUR hot melt adhesive in 30 and 180 days is very small, the attenuation of the strength of the PUR hot melt adhesive in 30 and 180 days is also very small, and the PUR hot melt adhesive is much smaller than a comparison sample 3 and a comparison sample 4 which are not subjected to any isolation filling, so that the quality guarantee period of the PUR hot melt adhesive in the PUR hot melt adhesive pipe is greatly prolonged, and the method has substantial industrial significance.
According to the using method of the PUR hot melt adhesive pipe 1, the PUR hot melt adhesive pipe 1 is heated to 80-120 ℃, at the moment, APAO isolation fillers are softened or changed into liquid, the bonding force between the APAO isolation fillers and the hollow tubular container 11 is rapidly reduced, and when the sealing tail cover 14 is opened and air pressure is added, the PUR hot melt adhesive is changed into liquid and is discharged from the glue outlet 12 below for use;
In the using process of the PUR hot melt adhesive pipe, 1) the filler layer is isolated by the APAO and has fluidity or is soft enough at about 100 ℃, so that the air pressure is not influenced to be transmitted to the PUR hot melt adhesive layer to promote the discharge of the PUR hot melt adhesive; 2) the APAO material used in the method is not compatible with the PUR hot melt adhesive, so that the APAO insulating filler layer 16 and the PUR hot melt adhesive layer 15 can keep a mutually-jointed but non-fusion state in the process of heating to 80-120 ℃; 3) therefore, the APAO isolation filler layer 16 is white in color, the PUR hot melt adhesive layer 15 is black in color, and the two layers are distinguished by colors, so that the use condition can be judged according to color change in the use process, and the PUR hot melt adhesive pipe is guaranteed not to be extruded continuously after the PUR hot melt adhesive is used up.
Example three:
As shown in fig. 1 and 2, a PUR hot melt adhesive tube 1 has a main body of a hollow tubular container 11, the hollow tubular container 11 has a volume of 30mL, a bottom of the hollow tubular container 11 is closed to form a fine adhesive outlet 12, and a plug 13 is plugged at the adhesive outlet 12; the upper part of the hollow tubular container 11 is provided with an opening 17, a sealing tail cover 14 is arranged at the opening 17, a PUR hot melt adhesive layer 15 is arranged in the hollow tubular container 11 and is close to the glue outlet 12, one end of the PUR hot melt adhesive layer 15 facing the sealing tail cover 14 is provided with an isolation filler layer 16, the isolation filler layer 16 is a polypropylene isolation filler layer 16, the thickness of the polypropylene isolation filler layer 16 is 50mm, and the softening point of a polypropylene material is 40-120 ℃.
The polypropylene insulating filler layer 16 is red in color, and the PUR hot melt adhesive layer 15 is colorless and transparent in color.
The hollow tubular container 11 had a PUR hot-melt adhesive layer 15 in an amount of 10 g.
The PUR hot melt rubber tube 1 packaging process comprises the following steps:
The method comprises the following steps: firstly, filling PUR hot melt adhesive with the temperature of about 110 ℃ into a hollow tubular container 11 from a bottom glue outlet 12, filling 10g of the PUR hot melt adhesive, and then filling a plug 13 into the glue outlet 12;
Step two: filling polypropylene heated to 150-180 ℃ from the upper opening of the hollow tubular container 11, stopping filling when the thickness of the polypropylene reaches 50mm, covering the sealing tail cover 14, and cooling to form the polypropylene isolation filler layer 16.
Because the volume of the hollow tubular container 11 is 30mL, and the filled PUR hot melt adhesive is only 10g, more air remains in the hollow tubular container 11, and because the polypropylene used in the polypropylene insulation filler layer 16 is not compatible with the PUR hot melt adhesive, the polypropylene insulation filler layer 16 and the PUR hot melt adhesive layer 15 can be kept in a mutually jointed but non-jointed state in the preservation process, and the softening point of the polypropylene material used here is between 40 and 120 ℃, the polypropylene material is in a liquefied state by heating in the packaging process, so that the polypropylene insulation filler layer 16 and the PUR hot melt adhesive layer 15 can be well and comprehensively jointed, gaps between the polypropylene insulation filler layer 16 and the PUR hot melt adhesive layer are avoided, air bubbles are avoided, the chemical crosslinking reaction of water vapor in the remaining air on the PUR hot melt adhesive is isolated, the skinning is avoided, and the quality guarantee period is prolonged;
in addition, the moisture permeability of the polypropylene material used for the second time is low enough, and meanwhile, the polypropylene isolation filler layer 16 and the pipe wall of the hollow tubular container 11 have certain adhesive force, so that water vapor is further prevented from permeating the PUR hot melt adhesive from the periphery of the polypropylene isolation filler layer 16, and the effect of isolating water vapor can be better achieved;
The following experimental data are now provided to verify the effectiveness of example three of this patent:
Three different types of polypropylene materials (polypropylene material 1-Japan gloss S400; polypropylene material 2-Japan gloss T500; polypropylene material 3-Japan gloss S600) are adopted as isolation fillers to carry out the packaging process to obtain different PUR hot melt rubber tube samples, and the following performances are compared with a PUR hot melt rubber tube sample comparison sample 5 (with a sealing tail cover) and a comparison sample 6 (without the sealing tail cover) which are not added with the isolation filler layer and have the same volume, and the following performances are specifically shown in the following table:
TABLE five comparison of Properties of three different types of Polypropylene materials
from table five, it can be seen that three types of polypropylene materials are used in accordance with the claims.
Table VI crust test results
as can be seen from the above six tables, the polypropylene isolation filler layer 16 of the PUR hot melt adhesive tube obtained by the method disclosed by the patent effectively isolates trace moisture in the air, so that almost no rubber skin is formed on the surface of the PUR hot melt adhesive in 180 days, and compared with the comparative samples 5 and 6 without isolation filler layers, the rubber skin formation phenomenon on the surface of the PUR hot melt adhesive is greatly reduced; the performance of the PUR hot melt adhesive is further tested, after the three polypropylene materials are used for isolation and filling, the increase of the viscosity of the PUR hot melt adhesive in 30 and 180 days is very small, the attenuation of the strength of the PUR hot melt adhesive in 30 and 180 days is also very small, and the PUR hot melt adhesive is much smaller than a comparison sample 5 and a comparison sample 6 which are not subjected to any isolation and filling, so that the quality guarantee period of the PUR hot melt adhesive in the PUR hot melt adhesive pipe is greatly prolonged, and the PUR hot melt adhesive has substantial industrial significance.
According to the using method of the PUR hot melt adhesive pipe 1, the PUR hot melt adhesive pipe 1 is heated to 80-120 ℃, at the moment, the polypropylene isolation filler is changed into liquid, the bonding force between the polypropylene isolation filler and the hollow tubular container 11 is rapidly reduced, and when the sealing tail cover 14 is opened and air pressure is added, the PUR hot melt adhesive is changed into liquid and is discharged from the adhesive outlet 12 below for use;
In the using process of the PUR hot melt adhesive pipe, 1) the polypropylene isolation filler layer has fluidity or is soft enough at about 100 ℃, so that air pressure is not influenced to be transmitted to the PUR hot melt adhesive layer to promote the discharge and use of the PUR hot melt adhesive; 2) because the used polypropylene material is not compatible with the PUR hot melt adhesive, the polypropylene isolation filler layer 16 and the PUR hot melt adhesive layer 15 can keep a mutually-jointed but non-fusion state in the process of heating to 80-120 ℃; 3) therefore, the color of the polypropylene insulation filler layer 16 is red, the color of the PUR hot melt adhesive layer 15 is colorless and transparent, and the two layers are distinguished by colors, which means that the use condition can be judged according to the color change in the use process, and the PUR hot melt adhesive pipe is not continuously extruded after the PUR hot melt adhesive is used up.
the experimental data obtained in this patent were obtained using the following standard test methods:
1. And (3) rubber thickness testing: the thickness of the hard crust on the upper surface of the PUR hot melt adhesive was measured at room temperature for 7 days. (the crusting source is that the PUR hot melt adhesive reacts with moisture in the air, and is chemically crosslinked to form a layer of solid matter which can not be melted by heating, so that the glue is unstable to be discharged and the use is influenced);
2. Softening point test: according to the test of the standard ASTM E28, the object to be detected is prepared according to the standard requirement, and is heated at the speed of 5 ℃/min until the steel ball is at the softening point when falling.
3. tg point test: samples of the UV glue were made into films and cured with an LED UV lamp and tested for their Tg point using DMA, according to standard ASTM D7028 testing.
4. curing shrinkage rate: tested according to standard ISO 1675. The liquid density was measured by a density cup, the solid density was measured by a density balance, and the curing shrinkage was calculated according to the formula.
5. Moisture permeability (0.2mm thickness): tested according to standard GBT 16928. The substance to be tested was made into a film of 0.2mm thickness and tested for moisture permeability at 60 ℃ and 95% humidity.
6. Adhesion to PP (hollow tubular container material is typically polypropylene): testing was performed according to standard ASTM D1002. During testing, the object to be detected is coated on a PP sheet and pressed by the PP sheet. Controlling the thickness of a 0.13mm copper wire, wherein the lap joint area is 12.7 × 25.4mm2, and then curing by using an LED ultraviolet lamp (APAO and polypropylene are naturally cooled); after curing, pulling the two sheets apart in opposite directions by using a universal testing machine, and recording the measured force value by strength (MPa);
7. viscosity growth ratio test: testing according to the standard GB/T2794. Heating PUR hot melt adhesive at 100 deg.C for 20min, testing viscosity with Bohler's rotary viscometer under the condition of 27# rotor at 20rpm, and comparing with initial viscosity to obtain viscosity increase ratio.
8. Testing the strength attenuation proportion of the PUR hot melt adhesive: testing was performed according to standard ASTM D1002. The PUR hot melt adhesive was heated at 100 ℃ for 20min, and then coated on a PC sheet, and pressed with the PC sheet. The thickness of the 0.13mm copper wire was controlled and the lap area was 12.7 x 25.4mm2, and after standing at 23 ℃ under 50% humidity for 48h, the two sheets were pulled apart in opposite directions using a universal tester, and the measured force values were recorded as strength (MPa). And comparing the initial intensity with the initial intensity to obtain an intensity attenuation value and an intensity attenuation proportion.
The above description is only an embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made according to the design key of the present invention fall within the protection scope of the present invention.

Claims (23)

1. A PUR hot melt adhesive pipe, the body is a hollow tubular container, the bottom of the hollow tubular container closes up and is a fine glue outlet, the glue outlet is plugged with a stopper; the cavity tubular container rear portion is an uncovered, and this uncovered department is equipped with sealed tail-hood, has PUR hot melt adhesive layer, its characterized in that near a jiao kou department in the cavity tubular container: and at least one isolation filler layer is arranged at one end of the PUR hot melt adhesive layer facing the sealing tail cover.
2. The PUR hot-melt hose according to claim 1, wherein: the insulation filler layer is not compatible with the PUR hot melt adhesive layer, has a moisture permeability of less than 15g/(m2 × d), and softens at 80-120 ℃ to have a hardness of 2-20A or has fluidity at 80-120 ℃.
3. The PUR hot-melt hose according to claim 2, wherein: the isolation filler layer is one of a UV adhesive isolation filler layer, an APAO isolation filler layer, a polypropylene isolation filler layer or an APAO-polypropylene mixture isolation filler layer.
4. the PUR hot-melt tube according to claim 3, wherein: the UV adhesive isolation filler layer is a cured UV adhesive isolation filler layer, and the Tg of the used UV adhesive is-30-60 ℃.
5. the PUR hot-melt hose according to claim 4, wherein: the thickness of the UV adhesive isolation filler layer is 0.1-10 mm.
6. the PUR hot-melt tube according to claim 3, wherein: the softening point of the APAO material used in the APAO isolation filler layer is between 40 and 120 ℃, and the thickness of the APAO isolation filler layer is 0.1 to 50 mm.
7. The PUR hot-melt tube according to claim 3, wherein: the polypropylene isolation filler layer is made of polypropylene materials with the softening point of 40-120 ℃ and the thickness of 0.1-50 mm.
8. The PUR hot-melt tube according to claim 3, wherein: the APAO-polypropylene mixture is used for isolating the filler layer, the softening point of the APAO-polypropylene mixture is between 40 and 120 ℃, and the thickness of the APAO-polypropylene mixture is 0.1 to 50 mm.
9. The PUR hot-melt hose according to claim 2, wherein: the isolation filler layer is made of amorphous polyolefin, synthetic rubber or ethylene vinyl acetate.
10. The PUR hot-melt hose according to claim 9, wherein: the amorphous polyolefin is one or more of polyethylene, polypropylene, polybutylene, ethylene-propylene copolymer, propylene-butylene copolymer or ethylene-propylene-butylene terpolymer.
11. The PUR hot-melt hose according to claim 9, wherein: the synthetic rubber is one or more of styrene-butadiene, styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene-propylene-styrene or styrene-ethylene-butylene-styrene.
12. The PUR hot-melt hose according to claim 1, wherein: the insulating filler layer and the PUR hot melt adhesive layer are different in color.
13. The PUR hot-melt hose according to claim 1, wherein: the bottom of the hollow tubular container is converged into a fine needle-shaped glue outlet protruding outwards, a circle of outwards-protruding screw joint opening surrounds the glue outlet, and the screw joint opening is provided with internal threads; the plug is characterized in that two rings of annular sleeves are protruded towards the same direction from the bottom cover of the plug and are called an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are distributed in a concentric circle mode by the center of the bottom cover, the outer diameter of the inner sleeve corresponds to the inner diameter of a screw joint of the glue outlet, threads are arranged on the outer wall of the inner sleeve, the inner sleeve of the plug is screwed into a gap between the glue outlet and the screw joint, after the inner sleeve is screwed with the screw joint through the threads, the glue outlet is abutted against the center of the bottom cover, and the outer.
14. The PUR hot-melt hose according to claim 13, wherein: bottom center department is equipped with a protruding grain, and the stopper spiro union is behind the play jiao kou, and this protruding grain top is leaned on in going out jiao kou to fill in out jiao kou, the top is leaned on in PUR hot melt adhesive layer bottom.
15. the PUR hot-melt hose according to claim 1, wherein: the volume of the hollow tubular container is 10-50 ml.
16. the PUR hot-melt hose according to claim 1, wherein: the PUR hot melt adhesive layer in the hollow tubular container has the adhesive amount of 5-60 g.
17. the PUR hot-melt tube packaging process according to any one of claims 1 to 16, wherein: filling heated liquid PUR hot melt adhesive into a hollow tubular container from a bottom adhesive outlet, filling a preset weight, and screwing a plug on the adhesive outlet; filling liquefied insulating filler into the hollow tubular container from the upper opening, covering the sealed tail cover after filling to required thickness, and cooling.
18. The packaging process of the PUR hot-melt tube according to claim 17, wherein: the isolation filler is UV glue, and at the moment, the isolation filler is required to be irradiated for 1-10 seconds under the condition of 405nm ultraviolet light of 200mW after being filled, and then irradiated for 1-10 seconds under the condition of 365nm ultraviolet light of 200mW, so that the UV glue is cured to form a cured UV glue isolation filler layer.
19. The packaging process of the PUR hot-melt tube according to claim 17, wherein: the isolation filler is one or a mixture of APAO and polypropylene, and is heated to be liquefied before filling.
20. The packaging process of the PUR hot-melt tube according to claim 17, wherein: the isolation filler is one of amorphous polyolefin, synthetic rubber or ethylene vinyl acetate.
21. The packaging process of the PUR hot-melt tube according to claim 20, wherein: the amorphous polyolefin is one or more of polyethylene, polypropylene, polybutylene, ethylene-propylene copolymer, propylene-butylene copolymer or ethylene-propylene-butylene terpolymer.
22. The packaging process of the PUR hot-melt tube according to claim 20, wherein: the synthetic rubber is one or more of styrene-butadiene, styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene-propylene-styrene or styrene-ethylene-butylene-styrene.
23. a PUR hot melt adhesive pipe using method is characterized in that: heating the PUR hot melt adhesive pipe to 80-120 ℃, wherein the isolated filler layer becomes soft or liquid, the bonding force with the hollow tubular container is rapidly reduced, and when the sealing tail cover is opened and air pressure is added, the PUR hot melt adhesive which becomes liquid is discharged from the adhesive outlet at the lower part for use.
CN201910856943.7A 2019-09-11 2019-09-11 PUR hot melt rubber tube and packaging process and using method thereof Pending CN110539961A (en)

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CN112694052A (en) * 2020-12-10 2021-04-23 厦门韦尔通科技有限公司 Treatment process and jig for improving production yield of PUR reactive hot melt adhesive
CN112977910A (en) * 2021-03-06 2021-06-18 佛山市沃驰自动化设备有限公司 Automatic racking machine for interface material double components
CN114056623A (en) * 2022-01-11 2022-02-18 常州威斯敦粘合材料有限责任公司 Packaging production line and packaging method for filling PUR hot melt adhesive

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TW201607615A (en) * 2014-08-26 2016-03-01 俊馳材料科技股份有限公司 Method for applying thermal gel or thermal compound
CN205966392U (en) * 2016-08-03 2017-02-22 甲宇兴业有限公司 Pneumatic type hot melt adhesive rifle
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CN111825973A (en) * 2020-07-24 2020-10-27 无锡博锦高分子研究发展有限公司 Method for blocking air moisture on surface layer of PUR (polyurethane) adhesive
CN111825973B (en) * 2020-07-24 2022-03-15 无锡博锦高分子研究发展有限公司 Method for blocking air moisture on surface layer of PUR (polyurethane) adhesive
CN112694052A (en) * 2020-12-10 2021-04-23 厦门韦尔通科技有限公司 Treatment process and jig for improving production yield of PUR reactive hot melt adhesive
CN112977910A (en) * 2021-03-06 2021-06-18 佛山市沃驰自动化设备有限公司 Automatic racking machine for interface material double components
CN114056623A (en) * 2022-01-11 2022-02-18 常州威斯敦粘合材料有限责任公司 Packaging production line and packaging method for filling PUR hot melt adhesive
CN114056623B (en) * 2022-01-11 2022-04-01 常州威斯敦粘合材料有限责任公司 Packaging production line and packaging method for filling PUR hot melt adhesive

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