CN113563828A - Foaming hot melt adhesive applied to filter and preparation method - Google Patents
Foaming hot melt adhesive applied to filter and preparation method Download PDFInfo
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- CN113563828A CN113563828A CN202110886708.1A CN202110886708A CN113563828A CN 113563828 A CN113563828 A CN 113563828A CN 202110886708 A CN202110886708 A CN 202110886708A CN 113563828 A CN113563828 A CN 113563828A
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- melt adhesive
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 125
- 238000005187 foaming Methods 0.000 title claims abstract description 107
- 238000002360 preparation method Methods 0.000 title claims description 13
- -1 polyethylene Polymers 0.000 claims abstract description 75
- 238000002844 melting Methods 0.000 claims abstract description 42
- 230000008018 melting Effects 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 40
- 239000003208 petroleum Substances 0.000 claims abstract description 40
- 229920000098 polyolefin Polymers 0.000 claims abstract description 40
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 39
- 239000004743 Polypropylene Substances 0.000 claims abstract description 38
- 229920001155 polypropylene Polymers 0.000 claims abstract description 38
- 239000004698 Polyethylene Substances 0.000 claims abstract description 37
- 229920000573 polyethylene Polymers 0.000 claims abstract description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 46
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 19
- 230000003197 catalytic effect Effects 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- 239000006260 foam Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 239000001993 wax Substances 0.000 description 38
- 239000000463 material Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000004803 Di-2ethylhexylphthalate Substances 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 150000004074 biphenyls Chemical class 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a foaming hot melt adhesive applied to a filter, which comprises the following raw material components in parts by mass, 5-20 parts of polyethylene wax, 20-40 parts of metallocene catalyzed polypropylene, 30-60 parts of random polyolefin, 30-50 parts of petroleum resin and 0.1-1 part of antioxidant, wherein the using method of the foaming hot melt adhesive comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine; passing nitrogen into the glue melting machine; and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine. The foaming hot melt adhesive provided by the invention has a foaming effect by passing nitrogen in the gluing process, and the foamed hot melt adhesive has a high foaming rate, so that the hot melt adhesive has a good foam accommodating function, and the use cost is greatly reduced.
Description
Technical Field
The invention belongs to the field of hot melt adhesives, and particularly relates to a foaming hot melt adhesive applied to a filter.
Background
The hot melt adhesive is a solvent-free thermoplastic adhesive prepared by melting and blending thermoplastic polymers serving as base materials and tackifiers, viscosity regulators, plasticizers, antioxidants and fillers serving as modification aids. The hot melt adhesive is high-elastic solid with 100 percent of solid content at room temperature, is heated and melted to be in a low-viscosity viscous flow state when in use, is uniformly coated on a bonding interface of an adherend, and after the hot melt adhesive is cooled and solidified, Van der Waals force of the bonding interface and the cohesion of the bonding interface tightly bond the adherend. Compared with the traditional inorganic adhesive and solvent adhesive, the hot melt adhesive has the advantages of water resistance, no glue cracking, high curing speed and capability of bonding for multiple times, and has the characteristics of easy processing, recoverability, high automation degree, low cost and the like in actual production, so that the hot melt adhesive has wide application prospect.
The foaming hot melt adhesive is one of hot melt adhesives, when the hot melt adhesive is applied, the hot melt adhesive is heated and melted firstly, and then a special foaming type glue applicator is used, so that the glue can be immediately foamed in the mixing and coating process; or foaming components are added into the hot melt adhesive to react in the process of sizing so that the adhesive layer has air bubbles. The foaming hot melt adhesive can be applied to filter material lamination, air filtration, oil filtration, water filtration and the like in a household filter, and can be applied to filter material lamination, filter material folding, frame assembly and end cover bonding and the like. Different from hot melt adhesives used in industrial production, the hot melt adhesives applied to filter materials have slightly lower requirements on bonding strength but higher requirements on environmental protection. Especially, all raw materials used for indoor air filtration are required to be environment-friendly materials, secondary pollution to the environment is avoided, and all processed finished products are required to pass some safety certifications of a third party so as to ensure that the raw materials are harmless to human bodies and defective products can be recycled. Therefore, the hot melt adhesive used in the conventional daily bonding and industrial production is difficult to be used as the hot melt adhesive of the air filter material.
The hot melt adhesive used for the air filter at present mainly comprises EVA (ethylene vinyl acetate copolymer), but the EVA type hot melt adhesive mainly has the problems: 1. the EVA hot melt adhesive has poor thermal stability, and can decompose low molecular substances with certain odor during heating and use, so that the quality of the air filter is seriously influenced; 2. during the thermal decomposition, severe color changes are also caused, thereby affecting the appearance of the air filter; 3. the low temperature resistance is poor, and severe low temperature can cause the EVA to become brittle or the bonding strength to be rapidly reduced; 4. the bonding strength is relatively general, and the use requirement cannot be met in certain occasions; 5. the glue consumption is large, which results in high cost.
Therefore, the foaming hot melt adhesive is adopted to replace an EVA material to be applied to a filter material, but the foaming rate and the foam capacity rate of the existing foaming hot melt adhesive are generally low, and a plurality of polymer waxes or a large amount of polymer waxes are added during the preparation of the hot melt adhesive, so that the formed hot melt adhesive has a hard texture, for example, Chinese invention patent CN105219324A discloses the hot melt adhesive for an automobile filter and a preparation method thereof, wherein the raw materials of the hot melt adhesive comprise two polymer waxes, namely polypropylene wax and polyethylene wax, and the hardness of the prepared hot melt adhesive can reach 75A-85A, but can be brittle at the same time and is easy to break in the using process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a foaming hot melt adhesive applied to a filter and a preparation method thereof.
The invention provides a foaming hot melt adhesive applied to a filter, which comprises the following raw material components in parts by mass, 5-20 parts of polyethylene wax, 20-40 parts of metallocene catalyzed polypropylene, 30-60 parts of random polyolefin, 30-50 parts of petroleum resin and 0.1-1 part of antioxidant, wherein the using method of the foaming hot melt adhesive comprises the following steps:
heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Preferably, the raw material components comprise, by mass, 5-15 parts of polyethylene wax, 20-30 parts of metallocene-catalyzed polypropylene, 40-60 parts of random polyolefin, 30-45 parts of petroleum resin and 0.1-1 part of antioxidant.
Preferably, the raw material components comprise, by mass, 10-15 parts of polyethylene wax, 25-30 parts of metallocene-catalyzed polypropylene, 50-60 parts of random polyolefin, 35-45 parts of petroleum resin and 0.1-1 part of antioxidant.
Preferably, the raw material components comprise, by mass, 10 parts of polyethylene wax, 25 parts of metallocene-catalyzed polypropylene, 40 parts of random polyolefin, 35 parts of petroleum resin and 0.5 part of antioxidant.
Preferably, the petroleum resin is one or more of petroleum resin C5 and petroleum resin C9.
Preferably, the molecular weight of the random polyolefin is 20000-100000.
Preferably, the antioxidant is one or more of aromatic amine antioxidant, phosphite antioxidant and hindered phenol antioxidant.
The invention also provides a preparation method of the foaming hot melt adhesive applied to the filter, which comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 20-50 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 20-50 r/min;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 10-30 r/min, introducing the mixture into a screw extruder, and extruding and granulating after the mixture is completely melted and fully and uniformly stirred.
Preferably, the preheating temperature in step 1 is 120 ℃ to 150 ℃.
Preferably, the constant temperature in step 3 is 180 ℃.
Compared with the prior art, the foaming hot melt adhesive provided by the invention has the following beneficial effects:
1. the foaming hot melt adhesive provided by the invention has the foaming effect by passing nitrogen in the gluing process, and the foamed hot melt adhesive has a high foaming rate, so that the hot melt adhesive has a good foam accommodating function, and the use cost is greatly reduced;
2. the foaming hot melt adhesive provided by the invention has higher strength and good flexibility, and the cured and molded foaming hot melt adhesive realizes flexibility, is not easy to break and has wider application scenes;
3. the foaming hot melt adhesive provided by the invention also has good high temperature resistance and low temperature resistance, and the aging of the foaming hot melt adhesive is slowed down and the service life is prolonged by selecting a reasonable antioxidant; meanwhile, the adhesive has better compatibility and adhesive property.
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention.
The embodiment of the invention provides a foaming hot melt adhesive applied to a filter, which comprises the following raw material components in parts by mass, 5-20 parts of polyethylene wax, 20-40 parts of metallocene catalyzed polypropylene, 30-60 parts of random polyolefin, 30-50 parts of petroleum resin and 0.1-1 part of antioxidant, and the using method of the foaming hot melt adhesive comprises the following steps:
heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Polyethylene wax in the foaming hot melt adhesive provided in the embodiment serves as a viscosity regulator and an opening time regulator, so that good fluidity and dispersibility are provided for the foaming hot melt adhesive, and the opening time of the foaming hot melt adhesive is regulated, so that nitrogen can be filled into the foaming hot melt adhesive for foaming. The metallocene polypropylene provides good flexibility, high temperature resistance and low temperature resistance for the foaming hot melt adhesive, and the prepared foaming hot melt adhesive can realize the flexibility and is not easy to break; the random polyolefin has good surface wetting and spreading performance, and simultaneously provides good foam-containing capacity for the foaming hot melt adhesive, so that the foaming rate is higher; meanwhile, the random polyolefin can be well compatible with wax and resin. The petroleum resin is used as a tackifier, so that the bonding performance of the foaming hot melt adhesive is effectively improved.
The foaming hot melt adhesive provided by the embodiment adopts a mode of filling nitrogen into the hot melt adhesive in the gluing process for foaming, so that the hot melt adhesive can be prepared into a solid for transportation, and the transportation efficiency and safety of the hot melt adhesive are improved; meanwhile, by means of good foaming rate, less hot melt adhesive can be used to achieve the same bonding degree, the use amount of the hot melt adhesive is greatly reduced, and the cost is reduced.
In a preferred embodiment, the raw material components of the foaming hot melt adhesive comprise, by mass, 5-15 parts of polyethylene wax, 20-30 parts of metallocene catalyzed polypropylene, 40-60 parts of random polyolefin, 30-45 parts of petroleum resin and 0.1-1 part of antioxidant.
In a preferred embodiment, the raw material components of the foaming hot melt adhesive comprise, by mass, 10-15 parts of polyethylene wax, 25-30 parts of metallocene-catalyzed polypropylene, 50-60 parts of random polyolefin, 35-45 parts of petroleum resin and 0.1-1 part of antioxidant.
In a preferred embodiment, the raw material components of the foaming hot melt adhesive consist of, by mass, 10 parts of polyethylene wax, 25 parts of metallocene-catalyzed polypropylene, 40 parts of random polyolefin, 35 parts of petroleum resin and 0.5 part of antioxidant.
In a preferred embodiment, the petroleum resin in the raw material of the foaming hot melt adhesive is one or more of petroleum resin C5 and petroleum resin C9, namely the petroleum resin can adopt petroleum resin C5, petroleum resin C9 and mixed resin of petroleum resin C5-C9.
In a preferred embodiment, the molecular weight of the random polyolefin in the raw material of the foamed hot melt adhesive is 20000-100000.
In a preferred embodiment, the antioxidant in the raw material of the foaming hot melt adhesive is one or more of aromatic amine antioxidant, phosphite antioxidant and hindered phenol antioxidant.
The embodiment of the invention also provides a preparation method of any one of the foaming hot melt adhesives applied to the filter, which comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 20-50 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 20-50 r/min;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 10-30 r/min, introducing the mixture into a screw extruder, and extruding and granulating after the mixture is completely melted and fully and uniformly stirred.
In a preferred embodiment, the preheating temperature in step 1 is from 120 ℃ to 150 ℃.
In a preferred embodiment, the constant temperature in step 3 is 180 ℃.
The foregoing disclosure is further illustrated by the following specific examples in order to provide further understanding and appreciation of the invention and to highlight its progressive effects.
Example 1
The implementation of raw materials: 5 parts of polyethylene wax, 20 parts of metallocene catalyzed polypropylene, 40 parts of random polyolefin, 30 parts of petroleum resin and 0.1 part of antioxidant
The preparation method comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 40 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 40 revolutions per minute;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 20 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
The method comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Example 2
The implementation of raw materials: 10 parts of polyethylene wax, 25 parts of metallocene-catalyzed polypropylene, 50 parts of random polyolefin, 35 parts of petroleum resin and 0.5 part of antioxidant
The preparation method comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 40 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 40 revolutions per minute;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 20 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
The method comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Example 3
The implementation of raw materials: 15 parts of polyethylene wax, 30 parts of metallocene catalyzed polypropylene, 60 parts of random polyolefin, 40 parts of petroleum resin and 1 part of antioxidant
The preparation method comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 40 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 40 revolutions per minute;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 20 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
The method comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Comparative example 1
The implementation of raw materials: 10 parts of polypropylene wax, 5 parts of polyethylene wax, 20 parts of metallocene catalyzed polypropylene, 20 parts of random polyolefin, 30 parts of petroleum resin and 0.1 part of antioxidant
The preparation method comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 40 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 40 revolutions per minute;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 20 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
The method comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
Comparative example 2
The implementation of raw materials: 5 parts of polyethylene wax, 20 parts of metallocene catalyzed polypropylene, 10 parts of random polyolefin, 30 parts of petroleum resin and 0.1 part of antioxidant
The preparation method comprises the following steps:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 40 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 40 revolutions per minute;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 20 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
The method comprises the following steps: heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
The performance of the melt foaming hot melt adhesive or the glue-applied foaming hot melt adhesive prepared in the examples 1 to 3 and the comparative examples 1 to 2 was tested, and the test items and results were as follows:
1. viscosity test method: the measured object is the hot melt adhesive which is not subjected to foaming treatment, namely the hot melt adhesive product
The viscosity was measured according to GB/T2794-2013 "Single Cylinder rotational viscometer for measuring viscosity of adhesives", and the results were reported in centipoise (cps).
2. Foaming ratio test method: the measured object is the foamed hot melt adhesive after foaming treatment
Taking a plurality of paper containers with the same volume, taking a first paper container (with the mass of M1), filling the first paper container with foaming hot melt adhesive which is not subjected to foaming treatment, and calling the first paper container filled with the foaming hot melt adhesive to have the mass of M2, taking a second paper container (with the mass of M3), filling the second paper container with the foaming hot melt adhesive which is subjected to foaming treatment, and calling the second paper container filled with the foaming hot melt adhesive to have the mass of M4, wherein the foaming ratio is (M4-M3)/(M2-M1) × 100%.
3. The foaming fineness testing method comprises the following steps: the measured object is the foamed hot melt adhesive after foaming treatment
Visual inspection was used. And cutting the foamed hot melt adhesive test sample block subjected to foaming treatment in the transverse direction and the longitudinal direction, taking a plurality of cutting surfaces, and observing the distribution condition and the fineness of pores of the cutting surfaces.
4. Tensile strength test method: the measured object is the foamed hot melt adhesive after foaming treatment
According to GB/T1040.1-2018, part 1 of the determination of tensile properties of plastics: total rules "were used to determine tensile strength, and the results are reported in MPa.
5. And (4) testing the content of harmful substances: third party test detection service units were commissioned to perform tests including compliance with the European RoHS directive 2011/65/correction of EU annex II (EU)2015/863 limits for cadmium, lead, mercury, hexavalent chromium, polybrominated biphenyls (PBBs), polybrominated diphenyl ethers (PSDEs), phthalates (e.g., dibutyl phthalate (DBP), Butyl Benzyl Phthalate (BBP), di-2-ethylhexyl phthalate (DEHP), and diisobutyl phthalate (DIBP)), and the like.
6. Softening point test method: the determination object is the hot melt adhesive which is not subjected to foaming treatment
Measured according to GB/T15332-1994 "measuring point Ring and ball method of softening point of hot melt adhesive", and the results are recorded in degrees centigrade (. degree. C.).
The test results of the above test items are as follows:
table 1: foaming hot melt adhesive performance test data summary table
Wherein, the viscosity is the basic performance index of the hot melt adhesive, and is also the index of fluidity, the high viscosity means that the hot melt adhesive is viscous and has poor fluidity, the low viscosity means that the hot melt adhesive is thin and has good fluidity, and the fluidity directly influences the efficiency, the glue consumption and the like of the glue applying process; the foaming rate indicates the content of the foam in the foamed hot melt adhesive after foaming treatment, and simultaneously indicates the amount of the used adhesive, wherein the higher the foaming rate is, the less the amount of the used adhesive is; the foaming fineness indicates the distribution of bubbles, and the more uniform the distribution, the higher the foaming fineness, the better the foaming effect is; the tensile strength indicates the tensile resistance of the foamed hot melt adhesive after foaming, and the higher the tensile strength is, the better the flexibility of the foamed hot melt adhesive is.
As shown in Table 1, the foaming ratio of the foaming hot melt adhesive prepared in the examples 1 to 3 of the invention is much higher than that of the hot melt adhesive prepared in the comparative examples 1 and 2, the foaming performance and the foam containing effect are better, and the using amount of the foaming hot melt adhesive can be greatly reduced; from the comparison of examples 1 to 3 and comparative example 2, it is known that a high amount of the random polyolefin can provide excellent foam-holding ability to achieve a high foaming ratio. In addition, the foamed hot melt adhesives of examples 1-3 had higher tensile strength, i.e., the foamed hot melt adhesives had good flexibility, and could be bent. As can be seen from comparative example 1, the polypropylene wax and the polyethylene wax are compounded to make the hot melt adhesive have higher softening point and viscosity, but because of the addition of more polymer wax, the tensile strength of the hot melt adhesive after foaming is lower, namely the hot melt adhesive is brittle and cannot be bent, and the foaming performance is not ideal.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The foaming hot melt adhesive applied to the filter is characterized by comprising the following raw material components in parts by mass of 5-20 parts of polyethylene wax, 20-40 parts of metallocene catalyzed polypropylene, 30-60 parts of random polyolefin, 30-50 parts of petroleum resin and 0.1-1 part of antioxidant, and the using method of the foaming hot melt adhesive comprises the following steps:
heating and melting the foaming hot melt adhesive in a melt adhesive machine;
passing nitrogen into the glue melting machine;
and spraying the foaming hot melt adhesive from a nozzle of the adhesive melting machine.
2. The foaming hot melt adhesive for filter applications as claimed in claim 1, wherein the raw material composition comprises, by mass, 5 to 15 parts of polyethylene wax, 20 to 30 parts of metallocene-catalyzed polypropylene, 40 to 60 parts of random polyolefin, 30 to 45 parts of petroleum resin, and 0.1 to 1 part of antioxidant.
3. The foaming hot melt adhesive for filter applications as claimed in claim 1, wherein the raw material composition comprises, by mass, 10 to 15 parts of polyethylene wax, 25 to 30 parts of metallocene-catalyzed polypropylene, 50 to 60 parts of random polyolefin, 35 to 45 parts of petroleum resin, and 0.1 to 1 part of antioxidant.
4. The foaming hot melt adhesive for filter applications as claimed in claim 1, wherein the raw material composition comprises, in parts by mass, 10 parts of polyethylene wax, 25 parts of metallocene-catalyzed polypropylene, 40 parts of random polyolefin, 35 parts of petroleum resin, and 0.5 part of antioxidant.
5. The foaming hot melt adhesive for filter applications as claimed in claim 1, wherein said petroleum resin is one or more of petroleum resin C5 and petroleum resin C9.
6. The foaming hot melt adhesive for filters according to claim 1, wherein the molecular weight of the random polyolefin is 20000-.
7. The foaming hot melt adhesive for filters as claimed in claim 1, wherein the antioxidant is one or more of aromatic amine antioxidant, phosphite antioxidant and hindered phenol antioxidant.
8. The preparation method of the foaming hot melt adhesive applied to the filter, which is disclosed by any one of claims 1 to 7, is characterized by comprising the following steps of:
step 1: preheating a reaction kettle;
step 2: adding polyethylene wax into the reaction kettle, heating to 180 ℃, and stirring at the stirring speed of 20-50 revolutions per minute until the polyethylene wax is completely melted and keeping the constant temperature;
and step 3: sequentially adding metallocene catalytic polypropylene and random polyolefin into a reaction kettle, melting one by one, keeping stirring until all the metallocene catalytic polypropylene and the random polyolefin are melted, and keeping the constant temperature, wherein the stirring speed is 20-50 r/min;
and 4, step 4: and (3) sequentially adding petroleum resin and an antioxidant into the reaction kettle, reducing the stirring speed to 10-30 r/min, fully melting the mixture, fully and uniformly stirring, and introducing the mixture into a screw extruder for extrusion and granulation.
9. The method of claim 7, wherein the preheating temperature in step 1 is 120 ℃ to 150 ℃.
10. The method according to claim 7, wherein the constant temperature in step 3 is 180 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042148A (en) * | 2023-02-17 | 2023-05-02 | 广东伟旺新材料有限公司 | Preparation method of foaming hot melt adhesive suitable for filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150299526A1 (en) * | 2014-04-16 | 2015-10-22 | Bostik, Inc. | Polyolefin-Based Hot Melt Adhesives With Improved Properties |
| US20150299525A1 (en) * | 2014-04-18 | 2015-10-22 | IFS Industries Inc. | Low density and high performance packaging hot melt |
| CN105219324A (en) * | 2015-10-27 | 2016-01-06 | 深圳市同德新材料科技有限公司 | A kind of hot melt adhesive for automobile filter and preparation method thereof |
| CN106118548A (en) * | 2016-07-29 | 2016-11-16 | 无锡市万力粘合材料股份有限公司 | Carpenter precoats edge sealing polyolefin hot-melt compositions and preparation method thereof |
-
2021
- 2021-08-03 CN CN202110886708.1A patent/CN113563828A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150299526A1 (en) * | 2014-04-16 | 2015-10-22 | Bostik, Inc. | Polyolefin-Based Hot Melt Adhesives With Improved Properties |
| US20150299525A1 (en) * | 2014-04-18 | 2015-10-22 | IFS Industries Inc. | Low density and high performance packaging hot melt |
| CN105219324A (en) * | 2015-10-27 | 2016-01-06 | 深圳市同德新材料科技有限公司 | A kind of hot melt adhesive for automobile filter and preparation method thereof |
| CN106118548A (en) * | 2016-07-29 | 2016-11-16 | 无锡市万力粘合材料股份有限公司 | Carpenter precoats edge sealing polyolefin hot-melt compositions and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042148A (en) * | 2023-02-17 | 2023-05-02 | 广东伟旺新材料有限公司 | Preparation method of foaming hot melt adhesive suitable for filter |
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