CN104531002A - Magnetic hot melt adhesive and preparing and using method thereof - Google Patents
Magnetic hot melt adhesive and preparing and using method thereof Download PDFInfo
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Abstract
The invention provides a magnetic hot melt adhesive and a preparing and using method of the magnetic hot melt adhesive, and belongs to the field of adhesives. The magnetic hot melt adhesive and the preparing and using method of the magnetic hot melt adhesive aim to solve the problem that no magnetic nano powder exists in the prior art to promote hot melt adhesive melting. The magnetic hot melt adhesive comprises, by weight, 10-60 parts of thermoplastic polymers, 25-55 parts of tackifier, 2-20 parts of plasticizers, 3-15 parts of viscosity modifiers, 0.1-4.5 parts of antioxidants, and 5-30 parts of magnetic ferrite powder. According to the magnetic hot melt adhesive, the nano magnetic ferrite powder with the thermomagnetic characteristic is evenly scattered in hot melt adhesive, heat generated by nano magnetic ferrite particles in an alternating magnetic field fast extends to the periphery in a radial shape to promote adjacent hot melt adhesive molecules to be quickly heated and quickly bonded in a few seconds, and accordingly the magnetic hot melt adhesive has the advantages of being uniform in coating and high in adhesive strength. When the magnetic hot melt adhesive is used, heating equipment does not need to be arranged, melt adhesive does not need to be preheated, only a small alternating magnetic field generator is needed, operation is easy and convenient, and the magnetic hot melt adhesive is suitable for continuous and automatic high-speed work. The cured hot melt adhesive can be easily separated by being arranged and heated in the alternating magnetic field again.
Description
Technical field
The invention belongs to adhesive area, be specifically related to a kind of magnetic hot melt adhesive and preparation and application thereof.
Background technology
Hot melt adhesive has quick solidifying, the advantage such as pollution-free, easy to prepare, is widely used in mechanical packaging, furniture making, shoemaking, automobile, unsewn binding, electronic component and articles for daily use bonding.At present, the hot melt adhesive of stopping composition is had to occupy most market because it is cheap, but because its fusing time is longer, after melting, viscosity is higher, therefore wettability is poor, more difficult coating is even, is not suitable for large-area coating bonding, and hot melt adhesive thermotolerance is not high, the product that processing requirement is not high can only be used for.Have a lot about adding the research of filler to hot melt adhesive performance impact although domestic, but at present major part also rests on the strengthening action stage of weighting agent about the research of weighting agent, do not carry out deeply studying widely with regard to the property of some fillers and the performance variation of glue that causes thus.At present, magnetic nanometer is not also had to impel the correlation technique of hotmelt melts both at home and abroad.
Special equipment melting, applying glue need be equipped with when using hot melt adhesive, as hot melt adhesive machine, hot melt adhesive heating tube, thermosol gelgun etc., inconvenient to use, thus limit using and promoting of hot melt adhesive.For the separation of the hot melt adhesive layer solidified, there are heating method and dissolution with solvents method two kinds of separation methods.Dissolution with solvents method can produce environmental pollution, and does not allow even possibility heating and separating, such as civil construction etc. in many occasions.Thus on market, low cost, rapid melting are developed in an urgent demand, coating is even, cohesive strength is high and be easy to the hot melt adhesive that realizes being separated again.
Summary of the invention
The object of the invention is to overcome defect of the prior art, a kind of magnetic hot melt adhesive and preparation and application thereof are provided.The magnetic hot melt adhesive that the present invention proposes is that the ferrite nanometer particle prepared with polyol process is for filler, with coupling agent to its modifying surface, it is made to be dispersed in hot melt adhesive, and utilize magnetic-particle to have magnetothermal effect characteristic to make it in alternating magnetic field, magnetic energy is converted into heat energy, the heat that Nano-Ferrite Particle produces extends to surrounding fast with radial, impel hot melt adhesive neighboring molecule thermally equivalent, shorten fusing time, improve cohesive strength.This product low cost, pollution-free, operate quick, easy, coating evenly, cohesive strength is high and be easy to realize being separated again.This preparation and application is simple and convenient, easy to implement.
To achieve these goals, one of technical scheme of the present invention is as follows:
A kind of magnetic hot melt adhesive, consist of according to parts by weight: thermoplastic polymer is 10-60 part, viscosity increaser is 25-55 part, and softening agent is 2-20 part, and viscosity-controlling agent is 3-15 part, and oxidation inhibitor is 0.1-4.5 part, and nano magnetic ferrite body is 5-30 part;
Preferable quality number consists of: thermoplastic polymer is 25-45 part, and viscosity increaser is 25-45 part, and softening agent is 2-10 part, and viscosity-controlling agent is 6-14 part, and oxidation inhibitor is 0.3-2.5 part, and nano magnetic ferrite body is 6-25 part;
Best quality number consists of: thermoplastic polymer is 27-35 part, and viscosity increaser is 26-40 part, and softening agent is 3-6 part, and viscosity-controlling agent is 9-13 part, and oxidation inhibitor is 0.5-1.8 part, and nano magnetic ferrite body is 8-20 part;
Wherein, described thermoplastic polymer is ethylene-vinyl acetate copolymer (EVA), polyamide resin, vibrin, urethane resin, acrylic resin, polyvinyl acetate resins, styrene-diene-styrene ternary block polymer SDS (styrene-butadiene-styrene ternary block copolymer SBS, styrene-isoprene-phenylethene ternary block polymer SIS), polyvinyl alcohol, polyethylene, polyvinyl chloride, ethylene-ethyl acrylate copolymer (EEA), ethylene-acrylic acid copolymer (EAA), the mixture of one or more in polydiallyl phthalate (DAP),
Described viscosity increaser is the mixture of one or more in rosin and derivative thereof, terpenoid resin, petroleum resin, resol, coumarone indene resin;
Described softening agent is the mixture of one or more in dioctyl phthalate (DOP), dibutyl phthalate, Tritolyl Phosphate, naphthenic oil, polyhutadiene;
Described viscosity-controlling agent is the mixture of one or more in paraffin, husky rope synthetic wax, Microcrystalline Wax, ceresine, low-molecular polyethylene wax;
Described oxidation inhibitor is the mixture of one or more in 2,6-Butylated Hydroxytoluene (BHT), antioxidant 1010,4,4-sulfydryls two (the two cresols of the 6-tertiary butyl) (RC), thiodipropionate;
Described nano magnetic ferrite body is the nickel zinc, MnZn, the cobalt zinc ferrite oxysome magnetic nanoparticle that adopt polyol process to prepare, and good nano magnetic ferrite body is Mn-Zn ferrite; Ferritic magnetic content is 30-70wt%, and ferritic median size is 6nm-80nm.
Technical scheme of the present invention two as follows:
A preparation method for magnetic hot melt adhesive, comprises the following steps:
1) by above-mentioned formula consumption, viscosity increaser, antioxidant, viscosity-controlling agent are put into container, and be heated to more than 60 DEG C, stir, make mixture melt;
2) until step 1) after obtained mixture melts completely, then add thermoplastic polymer, the softening agent of formula ratio respectively, stir at 150 ~ 180 DEG C;
3) until step 2) after obtained mixture is completely melt-blended, adds the magnetic Nano ferrite powder after the surface modification of formula ratio, stir;
Wherein, be: take appropriate nano-powder, add silane resin acceptor kh-550 supersound process 2 hours to the method for magnetic Nano ferrite powder surface modification, then vacuum-drying obtains the magnetic Nano ferrite powder of surface modification;
4) by step 3) obtained compound stops heating, make its temperature be down to≤130 DEG C after, filter through 200 ~ 300 mesh filter screens;
5) by step 4) filter after compound be placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtain magnetic hot melt adhesive through operations such as cooling, pelletizing, oven dry.
Technical scheme of the present invention three as follows:
A using method for magnetic hot melt adhesive, can select following method 1) or 2):
1) when magnetic hot melt adhesive is for pasting, magnetic hot-melt being spread on to be bonded, adding after an alternating magnetic field makes it melt, two adhesive surfaces are sticked together, after magnetic hot melt adhesive solidifies;
2) when the magnetic hot melt adhesive layer that will have solidified is separated, adhesive surface adds an alternating magnetic field refuse of magnetic hot melt adhesive can be made to realize being separated again;
Good alternating magnetic field intensity is 5-15kA/m, and alternation heating current is 10-100A, and field frequency is 100-180kHz.
Compared with prior art, its advantage is in the present invention:
1, coating evenly: because magnetic Nano ferrite is uniformly distributed in hot melt adhesive, and the heat that Nano-Ferrite Particle produces in alternating magnetic field extends to surrounding fast with radial, impels hot melt adhesive neighboring molecule thermally equivalent.Magnetic hot melt adhesive can overcome traditional hot-melt adhesive type of heating from outward appearance to inner essence, realizes homogeneous heating in molecule, thus avoids thermograde to produce, thus ensures that hot melt adhesive is heated identical in all directions, and hot melt adhesive is coated with evenly.
2, quick-binding: alternating magnetic field gets final product direct heating solid melten gel without preheating and to be bonded of heating, can bond rapidly, be suitable for serialization, automatic high-speed operation, and cost is low within the several seconds.
3, can be separated again: as being coated in the hot melt adhesive on adherend, can not bond because of cooling curing or bond effect is undesirable time, can reappose to heat in alternating magnetic field and be separated again.
4, bonding strength is high: adding ferrite fillers in hot melt adhesive can reduce shrinking percentage, improves bonding strength and thermotolerance.
5, easy and simple to handle: without the need to being equipped with the heating installations such as hot melt adhesive machine, hot melt adhesive heating tube, hand-held hot-melting glue rifle and hot melt coating machine, also not needing pre-hot melt adhesive, only needing small-sized alternating magnetic field generator that it can be made to melt rapidly.
Accompanying drawing explanation
Fig. 1 is the transmission electron microscope picture of the Mn-Zn ferrite that the present invention selects;
Fig. 2 is the magnetic hysteresis loop figure of the Mn-Zn ferrite that the present invention selects.
Embodiment
Material therefor of the present invention, except special instruction, is commercial.
The preparation method of nickel zinc, MnZn and cobalt zinc ferrite oxysome: be that the ferric acetyl acetonade of 4:1:1, zinc acetylacetonate and acetylacetonate nickel or manganese acetylacetonate or acetylacetone cobalt join in ethylene glycol by mol ratio, heat in Ar protective atmosphere, at 80 ~ 90 DEG C of insulation 10 ~ 30min; Slowly be warming up to 170 ~ 200 DEG C of insulation 2 ~ 5min again, then be rapidly heated 255 ~ 265 DEG C, backflow 50 ~ 90min, finally naturally cools to room temperature; Add dehydrated alcohol to reaction solution again, obtain black reaction liquid; By solution centrifugal, precipitate 3 ~ 5 times with dehydrated alcohol repetitive scrubbing, finally the black precipitate vacuum-drying after washing, obtain Ni
0.5zn
0.5fe
2o
4, Mn
0.5zn
0.5fe
2o
4or Co
0.5zn
0.5fe
2o
4nanometer ferrite powder.
To the method for magnetic Nano ferrite powder surface modification be: take appropriate nano powder, add silane resin acceptor kh-550 supersound process 2 hours, then vacuum-drying obtains the magnetic Nano ferrite powder of surface modification.
Embodiment 1
The magnetic Mn-Zn ferrite nano powder 8 kilograms after EVA 25 kilograms, rosin 22.5 kilograms, polyhutadiene 4.5 kilograms, husky rope synthetic wax 5 kilograms, antioxidant 1010 0.5 kilogram, surface modification is needed when making 65.5 kilograms of magnetic hot melt adhesives; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C; Described softening agent is the divinol of molecular weight 2300.
By formula consumption, rosin, antioxidant 1010, husky rope synthetic wax are put into container, and be heated to more than 60 DEG C, stir, said mixture is melted; After the complete melting of material, add the EVA of formula ratio, polyhutadiene respectively, stir at 150 ~ 180 DEG C; After complete melting mixing, add the magnetic Mn-Zn ferrite nano powder after the surface modification of formula ratio, stir; Mixed melting charge is stopped heating, its temperature is down to not higher than 130 DEG C, more above-mentioned melting charge is filtered through 200 mesh filter screens; Get the melting charge after filtration and be placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtain magnetic hot melt adhesive through operations such as cooling, pelletizing, oven dry.
When using this magnetic hot melt adhesive, being coated with and being spread on to be bonded, adding an alternating magnetic field and it can be made to melt rapidly within 1 minute, sticked together by two adhesive surfaces, after magnetic hot melt adhesive solidifies, magneticstrength is 8kA/m again, alternation heating current is 30A, and field frequency is 130kHz.
As the hot melt adhesive layer solidified being separated again, adhesive surface adds an alternating magnetic field, the refuse of magnetic hot melt adhesive can be made to realize being separated again, and magneticstrength is 10kA/m, and alternation heating current is 35A, and field frequency is 140kHz.
Detected result is in table 1.
Embodiment 2
The Magnetic nickel Zn ferrite nano powder 20 kilograms after EEA 52 kilograms, coumarone indene resin 41.2 kilograms, dibutyl phthalate 3.6 kilograms, Microcrystalline Wax 11 kilograms, thiodipropionate 1.2 kilograms, surface modification is needed when making 129 kilograms of magnetic hot melt adhesives; Described Microcrystalline Wax softening temperature is between 60 DEG C-90 DEG C.
By formula consumption, coumarone indene resin, thiodipropionate, Microcrystalline Wax are put into container, and be heated to more than 60 DEG C, stir, said mixture is melted; After the complete melting of material, add the EEA of formula ratio, dibutyl phthalate respectively, stir at 150 ~ 180 DEG C; After complete melting mixing, add the Magnetic nickel Zn ferrite nano powder after the surface modification of formula ratio, stir; Mixed melting charge is stopped heating, its temperature is down to not higher than 130 DEG C, more above-mentioned melting charge is filtered through 300 mesh filter screens; Get the melting charge after filtration and be placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtain magnetic hot melt adhesive through operations such as cooling, pelletizing, oven dry.
When using this magnetic hot melt adhesive, being coated with and being spread on to be bonded, adding an alternating magnetic field and it can be made to melt rapidly within 1 minute, sticked together by two adhesive surfaces, after magnetic hot melt adhesive solidifies, magneticstrength is 12kA/m again, alternation heating current is 40A, and field frequency is 160kHz.
As the hot melt adhesive layer solidified being separated again, adhesive surface adds an alternating magnetic field, the refuse of magnetic hot melt adhesive can be made to realize being separated again, and magneticstrength is 14kA/m, and alternation heating current is 45A, and field frequency is 170kHz.
Detected result is in table 1.
Embodiment 3
The magnetic cobalt Zn ferrite nano powder 15 kilograms after EVA 26.5 kilograms, rosin 20.3 kilograms, dibutyl phthalate 1.9 kilograms, 5 kilograms, paraffin, thiodipropionate 0.8 kilogram, surface modification is needed when making 69.5 kilograms of magnetic hot melt adhesives; Described paraffin softening temperature is between 55 DEG C-85 DEG C.
By formula consumption, rosin, thiodipropionate, paraffin are put into container, and be heated to more than 60 DEG C, stir, said mixture is melted; After the complete melting of material, add the EVA of formula ratio, dibutyl phthalate respectively, stir at 150 ~ 180 DEG C; After complete melting mixing, add the magnetic cobalt Zn ferrite nano powder after the surface modification of formula ratio, stir; Mixed melting charge is stopped heating, its temperature is down to not higher than 130 DEG C, more above-mentioned melting charge is filtered through 200 mesh filter screens; Get the melting charge after filtration and be placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtain magnetic hot melt adhesive through operations such as cooling, pelletizing, oven dry.
When using this magnetic hot melt adhesive, being coated with and being spread on to be bonded, adding an alternating magnetic field and it can be made to melt rapidly within 1 minute, sticked together by two adhesive surfaces, after magnetic hot melt adhesive solidifies, magneticstrength is 5kA/m again, alternation heating current is 10A, and field frequency is 100kHz.
As the hot melt adhesive layer solidified being separated again, adhesive surface adds an alternating magnetic field, the refuse of magnetic hot melt adhesive can be made to realize being separated again, and magneticstrength is 12kA/m, and alternation heating current is 40A, and field frequency is 160kHz.
Detected result is in table 1.
Embodiment 4
The magnetic Mn-Zn ferrite nano powder 6.6 kilograms after acrylic resin 15.3 kilograms, coumarone indene resin 14.1 kilograms, naphthenic oil 0.8 kilogram, low-molecular polyethylene wax 2.7 kilograms, 2,6-Butylated Hydroxytoluene 0.4 kilogram, surface modification is needed when making 39.9 kilograms of magnetic hot melt adhesives; Described low-molecular polyethylene wax softening temperature is between 90 DEG C-110 DEG C.
By formula consumption, coumarone indene resin, 2,6-Butylated Hydroxytoluenes, low-molecular polyethylene wax are put into container, and be heated to more than 60 DEG C, stir, said mixture is melted; After the complete melting of material, add the acrylic resin of formula ratio, naphthenic oil respectively, stir at 150 ~ 180 DEG C; After complete melting mixing, add the magnetic Mn-Zn ferrite nano powder after the surface modification of formula ratio, stir; Mixed melting charge is stopped heating, its temperature is made to be down to not higher than 130 DEG C, again the melting charge that above-mentioned melting charge is crossed after leaching filtration through 200 mesh filter screens is placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtains magnetic hot melt adhesive through operations such as cooling, pelletizing, oven dry.
When using this magnetic hot melt adhesive, being coated with and being spread on to be bonded, adding an alternating magnetic field and it can be made to melt rapidly within 1 minute, sticked together by two adhesive surfaces, after magnetic hot melt adhesive solidifies, magneticstrength is 7kA/m again, alternation heating current is 25A, and field frequency is 120kHz.
As the hot melt adhesive layer solidified being separated again, adhesive surface adds an alternating magnetic field, the refuse of magnetic hot melt adhesive can be made to realize being separated again, and magneticstrength is 15kA/m, and alternation heating current is 100A, and field frequency is 180kHz.
Detected result is in table 1.
Table 1 hot melt adhesive performance test data
Embodiment 5
Make 184.5 kilograms of magnetic hot melt adhesives, need SBS 20 kilograms, SIS 20 kilograms, DAP 20 kilograms, terpenoid resin 35 kilograms, staybelite 20g kilogram, dioctyl phthalate (DOP) 14 kilograms, dibutyl phthalate 6 kilograms, 15 kilograms, ceresine, 4,4-sulfydryls two (the two cresols of the 6-tertiary butyl) 4.5 kilograms, magnetic Mn-Zn ferrite nano powder 30 kilograms after surface modification; Described ceresine softening temperature is between 62 DEG C-75 DEG C.
Embodiment 6
Make 45.1 kilograms of magnetic hot melt adhesives, need the magnetic Mn-Zn ferrite nano powder 5 kilograms after polyethylene 5 kilograms, EAA 5 kilograms, petroleum resin 25 kilograms, Tritolyl Phosphate 2 kilograms, 3 kilograms, paraffin, antioxidant 1010 0.1 kilogram, surface modification; Described paraffin softening temperature is between 55 DEG C-85 DEG C.
Embodiment 7
Make magnetic hot melt adhesive, need EVA 27-35 kilogram, terpenoid resin 26-40 kilogram, dioctyl phthalate (DOP) 3-6 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after husky rope synthetic wax 9-13 kilogram, 4,4-sulfydryls two (the two cresols of the 6-tertiary butyl) 0.5-1.8 kilogram, surface modification; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C.
Embodiment 8
Make magnetic hot melt adhesive, need polyamide resin 27-35 kilogram, rosin 26-40 kilogram, dibutyl phthalate 3-6 kilogram, paraffin 9-13 kilogram, 2,6-Butylated Hydroxytoluene 0.5-1.8 kilogram, Magnetic nickel Zn ferrite nano powder 8-20 kilogram after surface modification; Described paraffin softening temperature is between 55 DEG C-85 DEG C.
Embodiment 9
Make magnetic hot melt adhesive, need vibrin 27-35 kilogram, water-white rosin 26-40 kilogram, polyhutadiene 3-6 kilogram, Microcrystalline Wax 9-13 kilogram, antioxidant 1010 0.5-1.8 kilogram, magnetic cobalt Zn ferrite nano powder 8-20 kilogram after surface modification; Described Microcrystalline Wax softening temperature is between 60 DEG C-90 DEG C; Described softening agent is the divinol of molecular weight 2300.
Embodiment 10
Make magnetic hot melt adhesive, need urethane resin 27-35 kilogram, coumarone indene resin 26-40 kilogram, naphthenic oil 3-6 kilogram, low-molecular polyethylene wax 9-13 kilogram, thiodipropionate 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described low-molecular polyethylene wax softening temperature is between 90 DEG C-110 DEG C.
Embodiment 11
Make magnetic hot melt adhesive, need acrylic resin 27-35 kilogram, resol 26-40 kilogram, polyhutadiene 3-6 kilogram, husky rope synthetic wax 9-13 kilogram, antioxidant 1010 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C; Described softening agent is the divinol of molecular weight 2300.
Embodiment 12
Make magnetic hot melt adhesive, need polyvinyl acetate resins 27-35 kilogram, petroleum resin 26-40 kilogram, Tritolyl Phosphate 3-6 kilogram, ceresine 9-13 kilogram, antioxidant 1010 0.5-1.8 kilogram, magnetic cobalt Zn ferrite nano powder 8-20 kilogram after surface modification; Described ceresine softening temperature is between 62 DEG C-75 DEG C.
Embodiment 13
Make magnetic hot melt adhesive, need SDS 27-35 kilogram, rosin 26-40 kilogram, polyhutadiene 3-6 kilogram, husky rope synthetic wax 9-13 kilogram, antioxidant 1010 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C; Described softening agent is the divinol of molecular weight 2300.
Embodiment 14
Make magnetic hot melt adhesive, need polyvinyl alcohol 27-35 kilogram, staybelite 26-40 kilogram, polyhutadiene 3-6 kilogram, Microcrystalline Wax 9-13 kilogram, BHT 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described Microcrystalline Wax softening temperature is between 60 DEG C-90 DEG C; Described softening agent is the divinol of molecular weight 2300.
Embodiment 15
Make magnetic hot melt adhesive, need polyethylene 27-35 kilogram, coumarone indene resin 26-40 kilogram, polyhutadiene 3-6 kilogram, husky rope synthetic wax 9-13 kilogram, BHT 0.5-1.8 kilogram, Magnetic nickel Zn ferrite nano powder 8-20 kilogram after surface modification; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C; Described softening agent is the divinol of molecular weight 2300.
Embodiment 16
Make magnetic hot melt adhesive, need polyvinyl chloride 27-35 kilogram, rosin 26-40 kilogram, dibutyl phthalate 3-6 kilogram, Microcrystalline Wax 9-13 kilogram, RC 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described Microcrystalline Wax softening temperature is between 60 DEG C-90 DEG C.
Embodiment 17
Make magnetic hot melt adhesive, need EEA 27-35 kilogram, coumarone indene resin 26-40 kilogram, dioctyl phthalate (DOP) 3-6 kilogram, Microcrystalline Wax 9-13 kilogram, RC 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder 8-20 kilogram after surface modification; Described Microcrystalline Wax softening temperature is between 60 DEG C-90 DEG C.
Embodiment 18
Make magnetic hot melt adhesive, need EAA 27-35 kilogram, coumarone indene resin 26-40 kilogram, dioctyl phthalate (DOP) 3-6 kilogram, husky rope synthetic wax 9-13 kilogram, RC 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder after surface modification be 10-20 kilogram; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C.
Embodiment 19
Make magnetic hot melt adhesive, need DAP 27-35 kilogram, rosin 26-40 kilogram, dibutyl phthalate 3-6 kilogram, husky rope synthetic wax 9-13 kilogram, RC 0.5-1.8 kilogram, magnetic Mn-Zn ferrite nano powder after surface modification be 10-20 kilogram; Described husky rope synthetic wax softening temperature is between 110 DEG C-120 DEG C.
Claims (10)
1. a magnetic hot melt adhesive, is characterized in that, consists of according to parts by weight: thermoplastic polymer is 10-60 part, viscosity increaser is 25-55 part, and softening agent is 2-20 part, and viscosity-controlling agent is 3-15 part, oxidation inhibitor is 0.1-4.5 part, and nano magnetic ferrite body is 5-30 part.
2. a kind of magnetic hot melt adhesive according to claim 1, it is characterized in that, described thermoplastic polymer is the mixture of one or more in ethylene-vinyl acetate copolymer, polyamide resin, vibrin, urethane resin, acrylic resin, polyvinyl acetate resins, styrene-diene-styrene ternary block polymer, polyvinyl alcohol, polyethylene, polyvinyl chloride, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, polydiallyl phthalate.
3. a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, described viscosity increaser is the mixture of one or more in rosin and derivative thereof, terpenoid resin, petroleum resin, resol, coumarone indene resin.
4. a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, described softening agent is the mixture of one or more in dioctyl phthalate (DOP), dibutyl phthalate, Tritolyl Phosphate, naphthenic oil, polyhutadiene.
5. a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, described viscosity-controlling agent is the mixture of one or more in paraffin, husky rope synthetic wax, Microcrystalline Wax, ceresine, low-molecular polyethylene wax.
6. a kind of magnetic hot melt adhesive according to claim 1, it is characterized in that, described oxidation inhibitor be 2,6-Butylated Hydroxytoluene, antioxidant 1010,4,4-sulfydryls two (the two cresols of the 6-tertiary butyl), the mixture of one or more in thiodipropionate.
7. a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, described nano magnetic ferrite body is the nickel zinc, MnZn or the cobalt zinc ferrite oxysome magnetic nanoparticle that adopt polyol process to prepare; Described ferritic magnetic content is 30-70wt%, and ferritic median size is 6nm-80nm.
8. the preparation method of a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, comprise the following steps:
1) viscosity increaser, antioxidant, viscosity-controlling agent are put into container, and be heated to more than 60 DEG C, stir, make mixture melt;
2) until step 1) after obtained mixture melts completely, then add thermoplastic polymer, softening agent respectively, stir at 150 ~ 180 DEG C;
3) until step 2) after obtained mixture is completely melt-blended, adds the magnetic Nano ferrite powder after surface modification, stir;
4) by step 3) obtained compound stops heating, make its temperature be down to≤130 DEG C after, filter through 200 ~ 300 mesh filter screens;
5) by step 4) filter after compound be placed in forcing machine, in 100 ~ 160 DEG C of extrusion mouldings, more namely obtain magnetic hot melt adhesive through cooling, pelletizing, baking operation.
9. the using method of a kind of magnetic hot melt adhesive according to claim 1, is characterized in that, can select following method 1) or 2):
1) when magnetic hot melt adhesive is for pasting, magnetic hot-melt being spread on to be bonded, adding after an alternating magnetic field makes it melt, two adhesive surfaces are sticked together, after magnetic hot melt adhesive solidifies;
2) when the magnetic hot melt adhesive layer that will have solidified is separated, adhesive surface adds an alternating magnetic field refuse of magnetic hot melt adhesive can be made to realize being separated again.
10. the using method of a kind of magnetic hot melt adhesive according to claim 9, is characterized in that, described alternating magnetic field intensity is 5-15kA/m, and alternation heating current is 10-100A, and field frequency is 100-180kHz.
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| CN106189948A (en) * | 2016-07-21 | 2016-12-07 | 柳州市五源科技有限公司 | Pur |
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| CN108587554A (en) * | 2018-04-13 | 2018-09-28 | 太仓运通新材料科技有限公司 | Pa hot melt adhesive and preparation method thereof |
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| CN109096973A (en) * | 2018-06-28 | 2018-12-28 | 芜湖卓越线束系统有限公司 | A kind of automotive wire bundle conductive heat melten gel and preparation method thereof |
| CN109096972A (en) * | 2018-09-29 | 2018-12-28 | 沈阳建筑大学 | A kind of magnetic heat molten type epoxyn and its application |
| CN110669465A (en) * | 2019-09-20 | 2020-01-10 | 宁波东旭成新材料科技有限公司 | Magnetic-thermal viscosity-reducing adhesive tape and preparation method thereof |
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| CN105733494A (en) * | 2016-04-28 | 2016-07-06 | 上海天洋热熔粘接材料股份有限公司 | Novel hot melt adhesive and preparation method thereof |
| US11084192B2 (en) * | 2016-07-04 | 2021-08-10 | Toyota Boshoku Kabushiki Kaisha | Fabric-like material for reinforcement in urethane foam molding, and method for producing urethane foam molded body utilizing same |
| CN106189948A (en) * | 2016-07-21 | 2016-12-07 | 柳州市五源科技有限公司 | Pur |
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| CN106893547A (en) * | 2017-01-13 | 2017-06-27 | 山东凯恩新材料科技有限公司 | A kind of magnetic conductivity polyamide hot and preparation method thereof |
| TWI641326B (en) * | 2017-01-26 | 2018-11-21 | 峻典股份有限公司 | Method for recycling production material of insole |
| CN108394622A (en) * | 2018-03-16 | 2018-08-14 | 刘华 | It is a kind of magnetism viscose glue, can magnetic separation recovery packing container and packaging waste recovery method |
| CN108587554A (en) * | 2018-04-13 | 2018-09-28 | 太仓运通新材料科技有限公司 | Pa hot melt adhesive and preparation method thereof |
| CN109096973A (en) * | 2018-06-28 | 2018-12-28 | 芜湖卓越线束系统有限公司 | A kind of automotive wire bundle conductive heat melten gel and preparation method thereof |
| CN109096972A (en) * | 2018-09-29 | 2018-12-28 | 沈阳建筑大学 | A kind of magnetic heat molten type epoxyn and its application |
| CN110669453A (en) * | 2019-09-20 | 2020-01-10 | 宁波东旭成新材料科技有限公司 | Preparation method of magnetic-thermal viscosity-reducing adhesive tape |
| CN110669465A (en) * | 2019-09-20 | 2020-01-10 | 宁波东旭成新材料科技有限公司 | Magnetic-thermal viscosity-reducing adhesive tape and preparation method thereof |
| CN110964471A (en) * | 2019-12-30 | 2020-04-07 | 广州合曼电子科技有限公司 | Magnetism-increasing adhesive and preparation method thereof |
| CN113416504A (en) * | 2021-08-13 | 2021-09-21 | 广州市方佳崇医疗科技有限公司 | Medical hot-melt adhesive and preparation method thereof |
| CN115011292A (en) * | 2021-08-30 | 2022-09-06 | 烟台德邦科技股份有限公司 | Epoxy resin bonding material capable of being cured by magnetic field and preparation method thereof |
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