CN114774009A - Abrasive belt butt joint adhesive tape and preparation method thereof - Google Patents

Abrasive belt butt joint adhesive tape and preparation method thereof Download PDF

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Publication number
CN114774009A
CN114774009A CN202210493434.4A CN202210493434A CN114774009A CN 114774009 A CN114774009 A CN 114774009A CN 202210493434 A CN202210493434 A CN 202210493434A CN 114774009 A CN114774009 A CN 114774009A
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adhesive tape
abrasive belt
glue
coating
joint adhesive
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CN202210493434.4A
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程伯强
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Individual
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/255—Polyesters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241—Polyolefin, e.g.rubber
    • C09J7/243—Ethylene or propylene 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesive Tapes (AREA)

Abstract

The application provides an abrasive belt butt joint adhesive tape and a preparation method thereof, and relates to the technical field of adhesive tapes. The preparation method of the abrasive belt butt joint adhesive tape comprises the following steps: and compounding the fibers on the polymer substrate through glue, and then cutting and splicing to obtain the abrasive belt butt joint adhesive tape. The preparation method can prepare adhesive tapes with different thicknesses and strengths by selecting different polymer substrates and fibers with different thicknesses and strengths so as to be suitable for abrasive belts with various particle-size abrasives and various base materials, can cut according to different preset angles, and splices the abrasive tapes to obtain the butt-joint adhesive tapes with the fiber reinforcing ribs inclined at different angles, and has the advantages of simple process and lower cost. The abrasive belt butt-joint adhesive tape obtained by the preparation method has high tensile strength, the thickness of the adhesive tape can be kept small, and an abrasive belt joint manufactured by using the butt-joint adhesive tape is firm and not easy to separate, so that the accident rate is greatly reduced, and the grinding is stable.

Description

Abrasive belt butt joint adhesive tape and preparation method thereof
Technical Field
The application relates to the technical field of adhesive tapes, in particular to a preparation method of an abrasive belt butt joint adhesive tape.
Background
Abrasive belts belong to coated abrasives, known as flexible abrasives. Compared with a solid grinding tool grinding wheel, the polishing machine has the advantages of being more flexible and safer, higher in precision and low in grinding cost during polishing. The abrasive belt grinding can process workpieces with various shapes with high requirements on surface quality and precision. The abrasive belt grinding not only can process common workpieces with plane, inner and outer circular surfaces, but also can process large or special-shaped pieces with high requirements on surface quality and precision with extremely high efficiency.
The sanding is a main tool of a sanding process, has the characteristics of high production efficiency, good quality of a processed surface, low production cost and the like, is mainly applied to grinding and polishing of complex molded surfaces of stainless steel, nonferrous metal, ferrous metal plates, blades and the like, and grinding of metal and nonmetal materials with water or oil, is widely applied to furniture production, and has close relation between the final surface quality of furniture products and the sanding process.
The butt joint process of the abrasive belt directly influences the service life and the grinding performance of the abrasive belt, the performance of the butt joint adhesive tape in the butt joint process of the abrasive belt is very important, at present, the abrasive belt butt joint adhesive tapes on the market are imported from foreign countries, the process is complex, and the price is high, so that the abrasive belt butt joint adhesive tape which is simple in process, low in cost, firm in joint and stable in grinding is needed to be prepared.
Disclosure of Invention
The application aims to provide a preparation method of an abrasive belt butt-joint adhesive tape, the preparation method can prepare adhesive tapes with different thicknesses and strengths by selecting different polymer substrates and fibers with different thicknesses and different strengths so as to be suitable for abrasive belts of various abrasive materials with different granularities and various base materials, the abrasive tapes can be cut according to different preset angles and spliced to obtain the butt-joint adhesive tape with fiber reinforcing ribs inclined at different angles, and the preparation method is simple in process and low in cost.
Another objective of the present application is to provide an abrasive belt butt-joint adhesive tape, wherein the polymer substrate of the adhesive tape is bonded with the unidirectional fiber reinforcing ribs arranged in order, the unidirectional fiber reinforcing ribs and the abrasive belt have the same oblique angle, and have large tensile strength while the thickness of the adhesive tape can be kept very small.
The technical problem to be solved is solved by the method and the device by adopting the following technical scheme:
the embodiment of the application provides a preparation method of an abrasive belt butt joint adhesive tape, which comprises the following steps:
step A: the glue A is coated on the polymer substrate by a glue roller of a coating machine,the machine speed of the sizing roller is 15-25m/min, the temperature is kept at 15-25 ℃, and the obtained sizing amount is 15-20g/m2Selecting proper fibers from a film with a corona value of 30-50 inches, and adjusting the tension of a plurality of fibers to be consistent with that of the film through a tension mechanism; then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and pressing the fibers by using a composite roller to obtain a composite film formed by compounding the fibers and the polymer substrate; winding the composite film on a winding shaft, naturally drying, and curing at 30-40 ℃ for 7-10 days to form a semi-finished product of the composite film;
and B: uniformly coating glue B on the surface of the composite film semi-finished product by using a gluing roller of a coating machine, wherein the machine speed of the gluing roller is 6-12m/min, the temperature is kept at 80-120 ℃, and the gluing amount is 18-25g/m2Forming a composite film, and then drying and curing by a dryer above the coating machine;
and C: the method comprises the steps of cutting a composite film along the length direction, cutting the composite film along the width direction according to a preset angle formed by a cutting line and fibers, cutting the composite film into a plurality of parallelogram films, splicing the plurality of parallelogram films, and enabling an included angle between the fibers and the length direction of an adhesive tape to be a preset angle to form the abrasive belt butt joint adhesive tape.
Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:
1. according to the preparation method of the abrasive belt butt-joint adhesive tape, the adhesive tapes with different thicknesses and strengths can be prepared by selecting different polymer substrates and fibers with different thicknesses and different strengths, so that the adhesive tape is suitable for abrasive belts with various particle size abrasives and various base materials, and the butt-joint adhesive tape with different inclined angles of fiber reinforcing ribs can be obtained by cutting and splicing according to different preset angles.
2. According to the preparation method of the abrasive belt butt-joint adhesive tape, firstly, glue is applied to the polymer substrate, then the fibers are compounded with the polymer substrate, and then the abrasive belt butt-joint adhesive tape is obtained through cutting and splicing.
3. The application provides an abrasive band butt joint sticky tape, it is neat's one-way fiber strengthening rib to be stained with on the polymer substrate of sticky tape, and these one-way fiber strengthening ribs become same slant with the concatenation angle in abrasive band, have tensile strength big the time, but the thickness of sticky tape can keep very little, and the abrasive band joint that uses this butt joint sticky tape to make is firm, is difficult for breaking away, the occurence rate of failure that significantly reduces, and the grinding is steady.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a composite film provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a plurality of cut parallelograms provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a spliced abrasive belt butt-joint tape provided in an embodiment of the present application.
Icon: 100-composite film, 200-parallelogram, 300-abrasive belt butt joint adhesive tape.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are conventional products which are not indicated by manufacturers and are commercially available.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to specific examples.
Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of a composite film 100 according to an embodiment of the present disclosure; fig. 2 is a schematic structural diagram of a plurality of cut parallelograms 200 provided in an embodiment of the present application; fig. 3 is a schematic structural diagram of a spliced abrasive belt butt-joint tape 300 according to an embodiment of the present disclosure.
The invention provides a preparation method of an abrasive belt butt joint adhesive tape 300, which comprises the following steps:
step A: uniformly coating glue A on a polymer substrate to obtain a film, selecting proper fibers, and adjusting the tension of a plurality of fibers to be consistent with that of the film through a tension mechanism; then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and compacting the fibers by using a composite roller to obtain a composite film 100 formed by compounding the fibers and the polymer substrate; then winding the composite film 100 on a take-up shaft, and drying and curing to form a semi-finished product of the composite film 100;
and B: uniformly coating glue B on the surface of the semi-finished product of the composite film 100, and drying and curing to form the composite film 100 (shown in figure 1);
and C: the composite film 100 is cut along the length direction, and then cut along the width direction according to a preset angle alpha formed by a cutting line and fibers, the composite film 100 is cut into a plurality of parallelogram 200 films (as shown in fig. 2), and the plurality of parallelogram 200 films are spliced together, so that the included angle between the fibers and the adhesive tape in the length direction is the preset angle alpha, and an abrasive belt butt-joint adhesive tape 300 (as shown in fig. 3) is formed.
It should be noted that the fiber can be terylene, acrylon, spandex, nylon, etc., and the fiber with different types, thicknesses and deniers can be selected according to the strength and thickness of the adhesive tape to be prepared, so as to be applicable to abrasive belts with various particle-size abrasives and various base materials.
In some embodiments of the invention, the glue coating process in step A and step B is carried out on a gluing roller of a coating machine, the machine speed for coating the glue A is 15-25m/min, and the temperature range for coating is 15-25 ℃; the machine speed when coating the glue B is 6-12m/min, and the temperature range when coating is 80-120 ℃.
In some embodiments of the invention, in the step a, the glue a comprises 8-12 parts of toluene diisocyanate, 0.8-1.2 parts of modified resin, 2-4 parts of ethyl acetate and 0.1-0.5 part of oily color paste.
In some embodiments of the present invention, in step B, glue B comprises 8-12 parts of toluene diisocyanate, 1-2 parts of modified resin, and 5-6 parts of ethyl acetate.
The polyurethane adhesive is formed by toluene diisocyanate and modified resin, has excellent shear strength and impact resistance, is suitable for various structural bonding fields, and has excellent flexibility. The polyurethane adhesive has excellent rubber characteristics, can adapt to the adhesion of base materials with different thermal expansion coefficients, forms a soft-hard transition layer between the base materials, has strong adhesive force, and also has excellent buffering and damping functions. The low and ultra-low temperature properties of polyurethane adhesives exceed those of all other types of adhesives.
The ethyl acetate plays a role of a diluent in the glue and is used for preparing the glue into a proper concentration, and the ethyl acetate is one of fatty acid esters which are most widely applied, is a quick-drying solvent, has excellent dissolving capacity and is an excellent industrial solvent.
In some embodiments of the present invention, the polymer substrate is made of one of PET, PE, and PVC.
Polyethylene terephthalate (PET) is prepared by exchange of dimethyl terephthalate and ethylene glycol or esterification of terephthalic acid and ethylene glycol to synthesize dihydroxy ethyl terephthalate, and then polycondensation reaction. The polyester belongs to a crystalline saturated polyester, is a milky white or light yellow polymer with high crystallinity, has smooth and glossy surface, and is a common resin in daily life. The composite material has excellent physical and mechanical properties in a wide temperature range, the long-term use temperature can reach 120 ℃, and the composite material has good creep resistance, fatigue resistance, friction resistance and dimensional stability.
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. No odor, no toxicity, no luster surface, and milky wax-like particle with density of 0.920g/cm3The melting point is 130-145 ℃. Insoluble in water, slightly soluble in hydrocarbons, etc. Can resist most of acid and alkali erosion, and has low water absorptionCan still keep flexibility at low temperature and has better chemical stability.
Polyvinyl chloride (PVC) is a polymer obtained by polymerizing vinyl chloride monomers in the presence of initiators such as peroxides and azo compounds, or in the presence of light and heat according to a radical polymerization mechanism. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. The molecular weight of the PVC produced in industry is generally within the range of 5-11 ten thousand, the PVC has larger polydispersity, the molecular weight is increased along with the reduction of polymerization temperature, the PVC has no fixed melting point, the PVC begins to soften at 80-85 ℃, becomes visco-elastic state at 130 ℃, and begins to change into viscous state at 160-180 ℃; has better mechanical property, tensile strength of about 60MPa and impact strength of 5-10 kJ/m2；
In some embodiments of the present invention, the amount of coating glue A applied on the polymer substrate is 15-20g/m2The coating amount of the coating glue B is 18-25g/m2. Too little sizing amount can result in insufficient adhesion, and the fiber cannot be firmly stuck on the polymer substrate; if the amount of the sizing agent is too large, the prepared adhesive tape is too thick, and raw materials are wasted.
In some embodiments of the present invention, step a, the corona value of the polymer substrate coated with glue a is 30-50 darts of inches. When the corona value is not properly treated, the adhesive force is insufficient during gluing, so that the coated glue is easy to fall off, and the fiber cannot be firmly adhered to the polymer substrate.
In some embodiments of the invention, the preset angle α is one of 45 °, 55 °, 67 °, or 75 °.
Specifically, according to the angle of the adhesive tape to be prepared, in the step C, an included angle formed by a cutting line and fibers along the width direction is used as a preset angle α, the preset angle α can be one of 45 °, 55 °, 67 ° or 75 °, the adhesive tape formed by splicing the parallelogram 200 films formed after corresponding cutting is spliced into two adjacent parallelogram 200 films, the two connected edges are edges during cutting, and the adhesive tape with the corresponding inclination angle is obtained by splicing the two connected edges along the length direction. The splicing angles of the unidirectional fiber reinforcing ribs and the abrasive belt form the same slant, so that the abrasive belt has high tensile strength, is firm in joint and is not easy to fall off.
In some embodiments of the invention, two adjacent parallelogram 200 films are connected by a pre-coat film.
Specifically, the material of membrane of precoating is PET, is the solid state under the normal atmospheric temperature state, will precoat the membrane and place the seam crossing of two parallelogram 200 films, can melt after being heated and become liquid, and the temperature reduces the back, and two adjacent parallelogram 200 films just have connected through the membrane of precoating.
The invention provides a sanding belt butt-joint adhesive tape 300 prepared by the preparation method.
Example 1
The embodiment of the application provides a preparation method of an abrasive belt butt joint adhesive tape 300, which comprises the following steps:
step A: (1) coating the glue A on a PET substrate by using a glue coating roller of a coating machine, wherein the machine speed of the glue coating roller is 20m/min, the temperature is kept at 15 ℃, and the gluing amount is 20g/m2A film having a corona value of 48 to inches;
(2) selecting 840D polyester fiber, and adjusting the tension of a plurality of polyester fiber yarns to be consistent with that of the film through a tension mechanism;
(3) then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and pressing the fibers by using a composite roller to obtain a composite film 100 formed by compounding the fibers and the polymer substrate;
(4) winding the composite film 100 on a take-up shaft, naturally drying, and curing at 40 ℃ for 7 days to form a semi-finished product of the composite film 100;
and B: uniformly coating glue B on the surface of the semi-finished product of the composite film 100 by using a gluing roller of a coating machine, wherein the machine speed of the gluing roller is 6m/min, the temperature is kept at 120 ℃, and the gluing amount is 25g/m2Forming a composite film 100, and then drying and curing by a dryer above the coating machine;
step C: (1) cutting the composite film 100 along the length direction, then cutting along the width direction according to an angle formed by a cutting line and fibers, wherein the included angle is 55 degrees, and cutting the composite film 100 into a plurality of parallelogram 200 films;
(2) a plurality of parallelogram 200 films are spliced together, two connected edges are the edges during cutting, and the films are spliced together along the length direction, so that the included angle between the fibers and the length direction of the adhesive tape is 55 degrees, and the abrasive belt butt joint adhesive tape 300 is formed.
Specifically, the glue A comprises 8 parts of toluene diisocyanate, 0.8 part of modified resin, 2 parts of ethyl acetate and 0.1 part of blue oily color paste;
and the glue B comprises 8 parts of toluene diisocyanate, 1 part of modified resin and 5 parts of ethyl acetate.
Thus, a blue 55 ℃ tape having a thickness of 0.17mm and a strength of 610N/cm was produced.
Example 2
The embodiment of the application provides a preparation method of an abrasive belt butt joint adhesive tape 300, which comprises the following steps:
step A: (1) coating the glue A on a PET substrate by using a glue coating roller of a coating machine, wherein the machine speed of the glue coating roller is 15m/min, the temperature is kept at 25 ℃, and the gluing amount is 15g/m2A film having a corona value of 30 to inches;
(2) selecting 300D nylon fibers, and adjusting the tension of a plurality of nylon fibers to be consistent with the film through a tensioning mechanism;
(3) then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and pressing the fibers by using a composite roller to obtain a composite film 100 formed by compounding the fibers and the polymer substrate;
(4) winding the composite film 100 on a take-up reel, naturally drying, and curing at 30 ℃ for 10 days to form a semi-finished product of the composite film 100;
and B, step B: uniformly coating glue B on the surface of the semi-finished product of the composite film 100 by using a gluing roller of a coating machine, wherein the machine speed of the gluing roller is 12m/min, the temperature is kept at 80 ℃, and the gluing amount is 18g/m2Forming a composite film 100, and then drying and curing by a dryer above the coating machine;
step C: (1) cutting the composite film 100 along the length direction, then cutting along the width direction according to an angle of 67 degrees formed by a cutting line and fibers, and cutting the composite film 100 into a plurality of parallelogram 200 films;
(2) a plurality of parallelogram 200 films are spliced, two connected edges are edges during cutting, and the two connected edges are spliced along the length direction, so that the included angle between the fibers and the length direction of the adhesive tape is 67 degrees, and the abrasive belt butt joint adhesive tape 300 is formed.
Specifically, the glue A comprises 12 parts of toluene diisocyanate, 1.2 parts of modified resin, 4 parts of ethyl acetate and 0.5 part of red oily color paste;
and the glue B comprises 12 parts of toluene diisocyanate, 2 parts of modified resin and 6 parts of ethyl acetate.
Thus, a red 67 ℃ tape having a thickness of 0.091mm and a strength of 350N/cm can be produced.
Example 3
The embodiment of the application provides a preparation method of an abrasive belt butt joint adhesive tape 300, which comprises the following steps:
step A: (1) coating the glue A on the PE substrate by using a sizing roller of a coating machine, wherein the machine speed of the sizing roller is 25m/min, the temperature is kept at 20 ℃, and the sizing amount is 18g/m2Film with corona value of 45 to English;
(2) selecting 630D nylon fibers, and adjusting the tension of a plurality of nylon fibers to be consistent with that of the film through a tension mechanism;
(3) then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and compacting the fibers by using a composite roller to obtain a composite film 100 formed by compounding the fibers and the polymer substrate;
(4) winding the composite film 100 on a take-up shaft, naturally drying, and curing at 35 ℃ for 8 days to form a semi-finished product of the composite film 100;
and B, step B: uniformly coating glue B on the surface of the semi-finished product of the composite film 100 by using a gluing roller of a coating machine, wherein the machine speed of the gluing roller is 8m/min, the temperature is kept at 100 ℃, and the gluing amount is 20g/m2Forming a composite film 100, and then drying and curing by a dryer above the coating machine;
and C: (1) cutting the composite film 100 along the length direction, then cutting along the width direction according to an angle of 75 degrees formed by a cutting line and fibers, and cutting the composite film 100 into a plurality of parallelogram 200 films;
(2) a plurality of parallelogram 200 films are spliced, two connected edges are edges during cutting, and the two connected edges are spliced along the length direction, so that the included angle between the fibers and the length direction of the adhesive tape is 75 degrees, and the abrasive belt butt joint adhesive tape 300 is formed.
Specifically, the glue A is prepared according to the following mixture ratio: 10 parts of toluene diisocyanate, 1 part of modified resin, 3 parts of ethyl acetate and 0.3 part of white oily color paste;
glue B comprises 10 parts of toluene diisocyanate, 1.5 parts of modified resin and 5.5 parts of ethyl acetate.
Thus, a white 75 ℃ tape having a thickness of 0.147mm and a strength of 470N/cm was obtained.
Example 4
The embodiment of the application provides a preparation method of an abrasive belt butt joint adhesive tape 300, which comprises the following steps:
step A: (1) coating the glue A on a PVC substrate by using a sizing roller of a coating machine, wherein the machine speed of the sizing roller is 22m/min, the temperature is kept at 18 ℃, and the sizing amount is 18g/m2A film having a corona value of 50 to inches;
(2) selecting 1200D polyester fibers, and adjusting the tension of a plurality of polyester fiber yarns to be consistent with that of the film through a tension mechanism;
(3) then, uniformly distributing the fibers on the film in the extension direction through a fiber distribution mechanism, and pressing the fibers by using a composite roller to obtain a composite film 100 formed by compounding the fibers and the polymer substrate;
(4) winding the composite film 100 on a take-up reel, naturally drying, and curing at 40 ℃ for 7 days to form a semi-finished product of the composite film 100;
and B: uniformly coating glue B on the surface of the semi-finished product of the composite film 100 by using a gluing roller of a coating machine, wherein the machine speed of the gluing roller is 10m/min, the temperature is kept at 120 ℃, and the gluing amount is 22g/m2Forming a composite film 100, and then drying and curing by a dryer above the coating machine;
step C: (1) cutting the composite film 100 along the length direction, then cutting along the width direction according to an angle formed by a cutting line and fibers, wherein the included angle is 55 degrees, and cutting the composite film 100 into a plurality of parallelogram 200 films;
(2) a plurality of parallelogram 200 films are spliced, two connected edges are edges during cutting, and the two connected edges are spliced along the length direction, so that the included angle between the fibers and the length direction of the adhesive tape is 45 degrees, and the abrasive belt butt joint adhesive tape 300 is formed.
Specifically, the glue A comprises 9 parts of toluene diisocyanate, 1.1 parts of modified resin, 2.5 parts of ethyl acetate and 0.3 part of green oily color paste;
glue B comprises 11 parts of toluene diisocyanate, 1.2 parts of modified resin and 6 parts of ethyl acetate.
Thus, a green 45 ℃ tape having a thickness of 0.234mm and a strength of 680N/cm was produced.
Comparative example
The comparative example was prepared in substantially the same manner as example 1, with the main differences that:
in this comparative example, no 1200D polyester fiber was added, and the other preparation processes were identical. The resulting coated abrasive tape 300 was tested for thickness and strength.
The results show that the abrasive belt butt-joint adhesive tape 300 prepared without adding fibers has the thickness of 0.16mm and the strength of 152N/cm. The thickness is not greatly different, but the strength is greatly different from that of the abrasive belt butt-joint adhesive tape 300 prepared in the example 1, which indicates that the strength performance of the adhesive tape is greatly improved by adding fibers.
In summary, in the method for manufacturing the abrasive belt butt joint adhesive tape 300 provided by the present application, by selecting different polymer substrates, different thicknesses and different strengths of fibers, adhesive tapes with different thicknesses and strengths can be manufactured so as to be suitable for abrasive belts with various particle sizes and various base materials, the abrasive tapes can be cut according to different preset angles α, and the butt joint adhesive tapes with different inclined angles of the fiber reinforcing ribs can be obtained by splicing, and the process is simple and the cost is low.
The application provides an abrasive band butt joint sticky tape 300, is stained with the orderly one-way fiber strengthening rib of range on the polymer substrate of sticky tape, and these one-way fiber strengthening ribs and abrasive band's concatenation angle become same slant, have tensile strength big simultaneously, and the thickness of sticky tape can keep very little, and the abrasive band joint that uses this butt joint sticky tape to make is firm, is difficult for breaking away, and the accident rate that significantly reduces, grinding are steady.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

Claims (10)

1. A preparation method of abrasive belt butt joint adhesive tape is characterized by comprising the following steps:
step A: coating glue A on a polymer substrate to obtain a film, and adjusting the tension of a plurality of fibers to be consistent with the film through a tension mechanism; placing the fibers on the surface of the film along the length direction, compacting by using a composite roller, winding, drying and curing to form a semi-finished composite film;
and B: uniformly coating glue B on the surface of the semi-finished product of the composite film, and drying and curing to form the composite film;
and C: cutting the composite film into a plurality of parallelogram films, and splicing the plurality of parallelogram films to form the abrasive belt butt-joint adhesive tape, wherein the included angle between the fibers and the length direction of the butt-joint adhesive tape is alpha, and alpha is more than 0 degree and less than 90 degrees.
2. The method for preparing the abrasive belt butt-joint adhesive tape according to claim 1, wherein in the step A and the step B, the process of coating the glue is carried out on a gluing roller of a coating machine, the machine speed for coating the glue A is 15-25m/min, and the temperature for coating is 15-25 ℃; the machine speed when coating the glue B is 6-12m/min, and the coating temperature is 80-120 ℃.
3. The preparation method of the abrasive belt butt joint adhesive tape according to claim 1, wherein the glue A comprises 8-12 parts of toluene diisocyanate, 0.8-1.2 parts of modified resin, 2-4 parts of ethyl acetate and 0.1-0.5 part of oily color paste.
4. The method for preparing the abrasive belt butt joint adhesive tape according to claim 1, wherein the glue B comprises 8-12 parts of toluene diisocyanate, 1-2 parts of modified resin and 5-6 parts of ethyl acetate.
5. The method of claim 1, wherein the polymer substrate is made of one of PET, PE, and PVC.
6. The method for preparing abrasive belt butt-joint adhesive tape according to claim 1, wherein the coating amount of the coating glue A on the polymer substrate is 15-20g/m2The gluing amount of the coating glue B is 18-25g/m2。
7. The method of claim 1, wherein the polymer substrate coated with glue a has a corona value of 30-50 dynes.
8. The method of making abrasive belt butt-joint tape according to claim 1, wherein α is 45 °, 55 °, 67 °, or 75 °.
9. The method of making belt according to claim 1, wherein two adjacent parallelogram films are connected by a pre-coated film.
10. A coated abrasive butt-joint tape produced by the production method according to any one of claims 1 to 9.
CN202210493434.4A 2022-05-07 2022-05-07 Abrasive belt butt joint adhesive tape and preparation method thereof Pending CN114774009A (en)

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665660A (en) * 1971-01-06 1972-05-30 Norton Co Coated abrasive belt joint
US4194618A (en) * 1969-05-08 1980-03-25 Norton Company Polyurethane adhesive composition and use thereof
US4215516A (en) * 1979-04-18 1980-08-05 Sheldahl, Inc. Unidirectional tape
JPH0280478A (en) * 1988-09-14 1990-03-20 Hagiwara Kogyo Kk Tacky adhesive tape of good crosswise tearability
US5578096A (en) * 1995-08-10 1996-11-26 Minnesota Mining And Manufacturing Company Method for making a spliceless coated abrasive belt and the product thereof
US5595804A (en) * 1994-08-22 1997-01-21 Minnesota Mining And Manufacturing Company Splice means, a method of splicing an abrasive article with same and the spliced abrasive article formed thereby
US5700188A (en) * 1995-11-29 1997-12-23 Hermes Schleifmittel Gmbh Coated abrasive belt
DE202011001416U1 (en) * 2011-01-12 2011-03-24 Lohmann Gmbh & Co. Kg Heat-activated, fiber-reinforced structural adhesive
DE102011008430A1 (en) * 2011-01-12 2012-07-12 Lohmann Gmbh & Co Kg Heat-activable, fiber-reinforced structural adhesive, useful as a splicing band for abrasive belts, comprises a carrier film, a fixing adhesive layer applied with reinforcing fiber, and a heat-activatable adhesive layer
CN103338900A (en) * 2010-12-30 2013-10-02 圣戈班磨料磨具有限公司 Joint tape and abrasive articles prepared with same
CN107841260A (en) * 2017-12-18 2018-03-27 常熟市长江胶带有限公司 Fiberglass adhesive tape
CN108582805A (en) * 2018-04-10 2018-09-28 洪淑真 Composite fiber material angle adjusting process

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194618A (en) * 1969-05-08 1980-03-25 Norton Company Polyurethane adhesive composition and use thereof
US3665660A (en) * 1971-01-06 1972-05-30 Norton Co Coated abrasive belt joint
US4215516A (en) * 1979-04-18 1980-08-05 Sheldahl, Inc. Unidirectional tape
JPH0280478A (en) * 1988-09-14 1990-03-20 Hagiwara Kogyo Kk Tacky adhesive tape of good crosswise tearability
US5595804A (en) * 1994-08-22 1997-01-21 Minnesota Mining And Manufacturing Company Splice means, a method of splicing an abrasive article with same and the spliced abrasive article formed thereby
US5578096A (en) * 1995-08-10 1996-11-26 Minnesota Mining And Manufacturing Company Method for making a spliceless coated abrasive belt and the product thereof
US5700188A (en) * 1995-11-29 1997-12-23 Hermes Schleifmittel Gmbh Coated abrasive belt
CN103338900A (en) * 2010-12-30 2013-10-02 圣戈班磨料磨具有限公司 Joint tape and abrasive articles prepared with same
DE202011001416U1 (en) * 2011-01-12 2011-03-24 Lohmann Gmbh & Co. Kg Heat-activated, fiber-reinforced structural adhesive
DE102011008430A1 (en) * 2011-01-12 2012-07-12 Lohmann Gmbh & Co Kg Heat-activable, fiber-reinforced structural adhesive, useful as a splicing band for abrasive belts, comprises a carrier film, a fixing adhesive layer applied with reinforcing fiber, and a heat-activatable adhesive layer
CN107841260A (en) * 2017-12-18 2018-03-27 常熟市长江胶带有限公司 Fiberglass adhesive tape
CN108582805A (en) * 2018-04-10 2018-09-28 洪淑真 Composite fiber material angle adjusting process

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