CN107384289A - A kind of high thermal polyurethane PUR and three layers of heat sealing adhesive tape - Google Patents
A kind of high thermal polyurethane PUR and three layers of heat sealing adhesive tape Download PDFInfo
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- CN107384289A CN107384289A CN201710597682.2A CN201710597682A CN107384289A CN 107384289 A CN107384289 A CN 107384289A CN 201710597682 A CN201710597682 A CN 201710597682A CN 107384289 A CN107384289 A CN 107384289A
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- polyurethane
- high thermal
- chain extender
- adhesive tape
- heat sealing
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3275—Hydroxyamines containing two hydroxy groups
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
- C08G18/3281—Hydroxyamines containing at least three hydroxy groups containing three hydroxy groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6655—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- 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
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a kind of high thermal polyurethane PUR, three layers of heat sealing adhesive tape and their preparation method；Wherein described high thermal polyurethane PUR, including following raw material by weight：70 80 parts of PEPA, 10 20 parts of diisocyanate, 5 10 parts of chain extender, 0.1 2 parts of Nano filling；Wherein, the hydroxyl value of the PEPA is 10 200mgKOH/g, and acid number is 0.1 3mgKOH/g；The chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:0.5 1.5 mixture；Three layers of heat sealing adhesive tape includes substrate layer 1, polyurethane hot melt 2, lamellar composite, the polyurethane hot melt are above-mentioned high thermal polyurethane PUR to substrate layer 3 successively；The high thermal polyurethane PUR of the present invention greatly improves cementability, thermophilic digestion resistance, hygroscopicity and the dyeability of heat sealing adhesive tape；Keep the intrinsic characteristic of polyurethane, such as excellent media-resistant stabilization and electrical property again simultaneously, substantially increase it and use category or field.
Description
Technical field
The present invention relates to technical field of novel high polymer material, more particularly to a kind of high thermal polyurethane PUR, three layers of heat
Sealed adhesive tape and their preparation method.
Background technology
Heat sealing adhesive tape is heated using glue pressing machine or hot press, is pasted onto the seam crossing of fabric, reaches preferably sealing effect
A kind of adhesive tape of fruit, it is applied to parka, anorak, battalion's curtain, tent, rain-coat for use on motor cycle, diving dress, anti-more and more widely
The gas-tight series of products such as the waterproof such as water shoes, waterproof bag series of products and space suit, ascending balloon, biochemical defence suit.Heat sealing adhesive tape has
Powerful bonding and excellent sealing property, can reach excellent water resistance.With the improvement of living standards, environmental protection and health
The enhancing of consciousness, consumer are required also increasingly the green such as clothes home textile, the environmental protection of travel utensil material, safety, nuisanceless
It is high.But due to being influenceed by technology and material, existing common heat sealing adhesive tape is difficult to reach biochemical defence suit resistance to acids and bases, anti-corrosion
The standard of corrosion.
Polyurethane hot melt is a kind of high-molecular compound carbamate of chain, its using when be heated to certain temperature
Fusing is coated on substrate surface, solidified by cooling, and physics friendship mainly occurs using the hydrogen bond action in composition for solidification process
Connection, has excellent toughness and adhesive strength.Lose hydrogen bond action after the heated certain temperature of thermoplastic polyurethane hot melt adhesive and become
Into viscous liquid, recover original physical property after cooling again, thus heating-cooling can be solidified repeatedly using such a characteristic, this
Kind PUR has the advantages that adhesive strength is higher, low temperature resistant, wear-resisting, and use reliability is high, chemical and physical properties are uniform
Property good, high comprehensive performance, technique for sticking is easy, wastes few, without organic solvent, belongs to environment-friendly material, and give birth to
The product of production can be recovered or secondary use.
However, polyurethane hot melt is applied to the resistance to boiling of generally existing, water-fastness, viscous in dress lining cloth industry in the prior art
The problems such as knot property difference, and be difficult to paint, water imbibition it is poor.Moreover, also it is not related to be exclusively used in the polyurethane of heat sealing adhesive tape at present
The relevant report of PUR.
The content of the invention
The problem of existing for prior art, it is an object of the invention to provide a kind of high thermal polyurethane PUR, three layers
Heat sealing adhesive tape and their preparation method.
To achieve these goals, the present invention uses following technical scheme：
A kind of high thermal polyurethane PUR, including following raw material by weight：
PEPA 70-80 parts,
Diisocyanate 10-20 parts,
Chain extender 5-10 parts,
Nano filling 0.1-2 parts；
Wherein, the hydroxyl value of the PEPA is 10-200mgKOH/g, acid number 0.1-3mgKOH/g；
Wherein described chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:0.5-1.5 mixing
Thing.
Preferably, it by polyacid and polyalcohol is 1.01-1.35 in molar ratio that the PEPA, which is,:1 passes through melting
Polycondensation reaction forms, until the hydroxyl value of PEPA is 10-200mgKOH/g, acid number 0.1-3mgKOH/g.
It is further preferred that the PEPA is 1.01-1.35 in molar ratio by polyacid and polyalcohol:1 passes through
Vacuum fusion method carries out dealcoholysis agent dehydrating polycondensation and formed, in vacuum fusion method, first by the raw material of above ratio at 80-100 DEG C
Lower reaction 0.5-1h, is then warming up at 120-170 DEG C and reacts 0.5-1h, then is warming up at 190-250 DEG C and reacts, until polyester
The hydroxyl value of polyalcohol is 10-200mgKOH/g, acid number 0.1-3mgKOH/g.
It is further preferred that the polyacid is ethanedioic acid, succinic acid, adipic acid, terephthalic acid (TPA) and phthalic acid
In one or more；The polyalcohol is one in ethylene glycol, propane diols, butanediol, glycerine, pentaerythrite and xylitol
Kind is several.
Preferably, the alcamines chain extender is the one or more in triisopropanolamine, ethylene glycol amine and triethanolamine；
The polyol chain extender is the one or more in ethylene glycol, propane diols, butanediol, glycerine and pentaerythrite.Further
Preferably, described alcamines chain extender is triisopropanolamine and ethylene glycol amine is 1 in molar ratio:0.7-1.2；The polyalcohol
Chain extender is that ethylene glycol, glycerine and pentaerythrite are 1-2 by weight:1-2:1-2.
Preferably, the diisocyanate is hydrogenated diphenyl methane diisocyanate (MDI), isophorone diisocyanate
One or more in ester (IPDI), HDI, toluene di-isocyanate(TDI) (TDI).
Preferably, the Nano filling be nano-calcium carbonate, nano carbon black, Nano carbon white, CNT, galapectite,
One or more in graphene.
The preparation method of above-mentioned high thermal polyurethane PUR, comprises the following steps：
(1) each raw material is weighed by weight；
(2) PEPA, diisocyanate, chain extender and Nano filling are delivered into double screw extruder, control extrusion
180-220 DEG C of machine temperature range, by cooling water and comminutor, obtain polyurethane micelle；
(3) polyurethane micelle is passed through into 140 DEG C of -160 DEG C of flow casting moldings of single screw extrusion machine, obtains polyurethane hot melt
Film.
A kind of three layers of heat sealing adhesive tape, including substrate layer 1, polyurethane hot melt 2, substrate layer 3 lamellar composite successively, it is described poly-
Urethane PUR is above-mentioned high thermal polyurethane PUR.
Preferably, the thickness of the substrate layer 1 is 0.1-0.5mm；The thickness of the polyurethane hot melt 2 is 0.01-
0.1mm；The thickness of the substrate layer 3 is 0.1-0.5mm.
Preferably, the substrate layer 1 and 2 is one kind in coating, nylon, PVC, non-woven fabrics, PE, PET, PP, release liners
Or two kinds.
The preparation method of three layers of above-mentioned heat sealing adhesive tape, comprises the following steps：
After polyurethane hot melt heating fusing, it is applied on the side of base material 1, is used before polyurethane hot melt cooling
Chill roll pressurization is compound with substrate layer 2, and three layers of heat sealing adhesive tape of the present invention are obtained after batching.
Beneficial effects of the present invention：
(1) polyurethane hot melt of the invention, by the way that PEPA, hyperbranched chain extender, diisocyanate are compounded
Super branched polyurethane prepolymer is formed, it is internally formed branched network structure, and optimizes introducing Nano filling so that of the invention
The heat resisting temperature of polyurethane hot melt is more than 110 DEG C, and temperature in use improves more than 30 DEG C, and its heat resistance has obtained significantly carrying
Height, it is greatly improved cementability, thermophilic digestion resistance, hygroscopicity and the dyeability of heat sealing adhesive tape；Polyurethane is kept to consolidate again simultaneously
Some characteristics, such as excellent media-resistant stabilization and electrical property, substantially increase it and use category or field；
(2) 110-120 DEG C of the fusion range of polyurethane hot melt of the invention, melt flow rate (MFR) 10-15g/min；
Moisture content is 20 ± 2.5 4. ﹪；Ash content is≤1.5-5 ﹪；
(3) polyurethane hot melt of the invention is broad by viscous base material, suitable for various staple fibres, natural fiber and special
Metal, glass, the bonding of the material such as acrylic, it is more suitable for green adhesive area used for textiles, it is not only alternative
Imported product, meet the needs of domestic high-grade lining cloth, can also meet to export European Union's textile standardses requirement, market prospects are quite wide
It is wealthy, and the great new breakthrough of China's adhesive industry；
(4) three layers of heat sealing adhesive tape of the present invention are applied to bond the fabrics such as various staple fibres, natural fiber, flexible,
Good fluidity, adhesion strength height, solvent resistant, it is wear-resisting, heat resistance and ultraviolet-resistent property are excellent the features such as.
Brief description of the drawings
Fig. 1 is the structural representation of three layers of heat sealing adhesive tape of the present invention.
Embodiment
Embodiment 1
A kind of high thermal polyurethane PUR, including following raw material by weight：
Wherein, the PEPA is terephthalic acid (TPA) and ethylene glycol is 1.2 in molar ratio:1, by vacuum fusion method
Carry out dealcoholysis agent dehydrating polycondensation to form, in vacuum fusion method, the raw material of above ratio is first reacted into 0.5h at 80 DEG C, then
It is warming up at 120 DEG C and reacts 1h, then is warming up at 250 DEG C and reacts, until the hydroxyl value of PEPA is 100mgKOH/g, acid number
For 2mgKOH/g.
The chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:1 mixture；Wherein institute
State that alcamines chain extender is triisopropanolamine and ethylene glycol amine is 1 in molar ratio:0.8 mixture；The polyalcohols chain extension
Agent is that ethylene glycol, glycerine and pentaerythrite are 1 by weight:1:1.
The preparation method of above-mentioned high thermal polyurethane PUR, comprises the following steps：
(1) each raw material is weighed by weight；
(2) PEPA, diisocyanate, chain extender and Nano filling are delivered into double screw extruder, control extrusion
180-220 DEG C of machine temperature range, by cooling water and comminutor, obtain polyurethane micelle；
(3) polyurethane micelle is passed through into 140 DEG C of -160 DEG C of flow casting moldings of single screw extrusion machine, obtains polyurethane hot melt
Film.
Embodiment 2
A kind of high thermal polyurethane PUR, including following raw material by weight：
Wherein, the PEPA is terephthalic acid (TPA) and ethylene glycol is 1.01 in molar ratio:1, by vacuum fusion
Method carries out dealcoholysis agent dehydrating polycondensation and formed, and in vacuum fusion method, the raw material of above ratio first is reacted into 0.5h at 80 DEG C, connect
To be warming up at 150 DEG C and react 1h, then be warming up at 190 DEG C and react, until the hydroxyl value of PEPA is 80mgKOH/g, acid
It is worth for 1.8mgKOH/g.
The chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:1.2 mixture；Wherein
The alcamines chain extender is triisopropanolamine and ethylene glycol amine is 1 in molar ratio:1 mixture；The polyalcohols chain extension
Agent is that ethylene glycol, glycerine and pentaerythrite are 1 by weight:2:1.
The preparation method of above-mentioned high thermal polyurethane PUR, comprises the following steps：
(1) each raw material is weighed by weight；
(2) PEPA, diisocyanate, chain extender and Nano filling are delivered into double screw extruder, control extrusion
180-220 DEG C of machine temperature range, by cooling water and comminutor, obtain polyurethane micelle；
(3) polyurethane micelle is passed through into 140 DEG C of -160 DEG C of flow casting moldings of single screw extrusion machine, obtains polyurethane hot melt
Film.
Embodiment 3
A kind of high thermal polyurethane PUR, including following raw material by weight：
Wherein, the PEPA is terephthalic acid (TPA) and ethylene glycol is 1.35 in molar ratio:1, by vacuum fusion
Method carries out dealcoholysis agent dehydrating polycondensation and formed, and in vacuum fusion method, the raw material of above ratio first is reacted into 0.5h at 100 DEG C,
Then it is warming up at 170 DEG C and reacts 1h, then is warming up at 200 DEG C and reacts, until the hydroxyl value of PEPA is 120mgKOH/g,
Acid number is 2.1mgKOH/g.
The chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:0.8 mixture；Wherein
The alcamines chain extender is triisopropanolamine and ethylene glycol amine is 1 in molar ratio:1.2 mixture；The polyalcohols expand
Chain agent is that ethylene glycol, glycerine and pentaerythrite are 1 by weight:1:2.
The preparation method of above-mentioned high thermal polyurethane PUR, comprises the following steps：
(1) each raw material is weighed by weight；
(2) PEPA, diisocyanate, chain extender and Nano filling are delivered into double screw extruder, control extrusion
180-220 DEG C of machine temperature range, by cooling water and comminutor, obtain polyurethane micelle；
(3) polyurethane micelle is passed through into 140 DEG C of -160 DEG C of flow casting moldings of single screw extrusion machine, obtains polyurethane hot melt
Film.
Embodiment 4
A kind of three layers of heat sealing adhesive tape, including substrate layer 1, polyurethane hot melt 2, substrate layer 3 lamellar composite successively, it is described poly-
Urethane PUR is the high thermal polyurethane PUR of embodiment 1.
The substrate layer 1 is coating, and its thickness is 0.2mm；The thickness of the polyurethane hot melt 2 is 0.1mm；The base
Material layer 3 is nylon, and its thickness is 0.5mm.
The preparation method of three layers of above-mentioned heat sealing adhesive tape, comprises the following steps：
After polyurethane hot melt heating fusing, it is applied on the side of base material 1, is used before polyurethane hot melt cooling
Chill roll pressurization is compound with substrate layer 2, and three layers of heat sealing adhesive tape of the present invention are obtained after batching.
Embodiment 5
A kind of three layers of heat sealing adhesive tape, including substrate layer 1, polyurethane hot melt 2, substrate layer 3 lamellar composite successively, it is described poly-
Urethane PUR is the high thermal polyurethane PUR of embodiment 2.
The substrate layer 1 is non-woven fabrics, and its thickness is 0.4mm；The thickness of the polyurethane hot melt 2 is 0.1mm；It is described
Substrate layer 3 is nylon, and its thickness is 0.4mm.
The preparation method of three layers of above-mentioned heat sealing adhesive tape, comprises the following steps：
After polyurethane hot melt heating fusing, it is applied on the side of base material 1, is used before polyurethane hot melt cooling
Chill roll pressurization is compound with substrate layer 2, and three layers of heat sealing adhesive tape of the present invention are obtained after batching.
Embodiment 6
A kind of three layers of heat sealing adhesive tape, including substrate layer 1, polyurethane hot melt 2, substrate layer 3 lamellar composite successively, it is described poly-
Urethane PUR is the high thermal polyurethane PUR of embodiment 3.
The substrate layer 1 is non-woven fabrics, and its thickness is 0.4mm；The thickness of the polyurethane hot melt 2 is 0.05mm；Institute
It is release liners to state substrate layer 3, and its thickness is 0.1mm.
The preparation method of three layers of above-mentioned heat sealing adhesive tape, comprises the following steps：
After polyurethane hot melt heating fusing, it is applied on the side of base material 1, is used before polyurethane hot melt cooling
Chill roll pressurization is compound with substrate layer 2, and three layers of heat sealing adhesive tape of the present invention are obtained after batching.
Claims (10)
1. a kind of high thermal polyurethane PUR, it is characterised in that including following raw material by weight：
PEPA 70-80 parts,
Diisocyanate 10-20 parts,
Chain extender 5-10 parts,
Nano filling 0.1-2 parts；
Wherein, the hydroxyl value of the PEPA is 10-200mgKOH/g, acid number 0.1-3mgKOH/g；
Wherein described chain extender is alcamines chain extender and polyalcohols chain extender is 1 in molar ratio:0.5-1.5 mixture.
2. high thermal polyurethane PUR according to claim 1, it is characterised in that the PEPA is by polynary
Acid and polyalcohol are 1.01-1.35 in molar ratio:1 is formed by melt polycondensation reaction, until the hydroxyl value of PEPA is 10-
200mgKOH/g, acid number 0.1-3mgKOH/g.
3. high thermal polyurethane PUR according to claim 2, it is characterised in that the polyacid is ethanedioic acid, fourth
One or more in diacid, adipic acid, terephthalic acid (TPA) and phthalic acid；The polyalcohol is ethylene glycol, propane diols, fourth
One or more in glycol, glycerine, pentaerythrite and xylitol.
4. high thermal polyurethane PUR according to claim 1, it is characterised in that the alcamines chain extender is three different
One or more in Propanolamine, ethylene glycol amine and triethanolamine；The polyol chain extender is ethylene glycol, propane diols, fourth two
One or more in alcohol, glycerine and pentaerythrite.
5. high thermal polyurethane PUR according to claim 1, it is characterised in that the diisocyanate is hydrogenation two
In methylenebis phenyl isocyanate (MDI), IPDI (IPDI), HDI, toluene di-isocyanate(TDI) (TDI)
It is one or more of；The Nano filling is nano-calcium carbonate, nano carbon black, Nano carbon white, CNT, galapectite, graphite
One or more in alkene.
6. the preparation method of the high thermal polyurethane PUR according to any one of claim 1-5, it is characterised in that bag
Include following steps：
(1) each raw material is weighed by weight；
(2) PEPA, diisocyanate, chain extender and Nano filling are delivered into double screw extruder, controls extruder temperature
180-220 DEG C of scope is spent, by cooling water and comminutor, obtains polyurethane micelle；
(3) polyurethane micelle is passed through into 140 DEG C of -160 DEG C of flow casting moldings of single screw extrusion machine, obtains polyurethane-hot melt glued membrane.
7. a kind of three layers of heat sealing adhesive tape, it is characterised in that including substrate layer (1), polyurethane hot melt (2), substrate layer (3) successively
Lamellar composite, the polyurethane hot melt are the high thermal polyurethane PUR described in claim 1-5.
8. three layers of heat sealing adhesive tape according to claim 7, it is characterised in that the thickness of the substrate layer (1) is 0.1-
0.5mm；The thickness of the polyurethane hot melt (2) is 0.01-0.1mm；The thickness of the substrate layer (3) is 0.1-0.5mm.
9. three layers of heat sealing adhesive tape according to claim 7, it is characterised in that the substrate layer (1) and (2) are coating, Buddhist nun
One or both of dragon, PVC, non-woven fabrics, PE, PET, PP, release liners.
10. the preparation method of three layers of heat sealing adhesive tape according to any one of claim 7-9, it is characterised in that including with
Lower step：
After polyurethane hot melt heating fusing, it is applied on the side of base material (1), using cold before polyurethane hot melt cooling
But roller pressurization is compound with substrate layer (2), and three layers of heat sealing adhesive tape are obtained after batching.
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| CN111070809A (en) * | 2019-12-23 | 2020-04-28 | 江苏吉润住宅科技有限公司 | Composite board |
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| CN113185924A (en) * | 2021-05-24 | 2021-07-30 | 杭州锴越新材料有限公司 | Preparation method of non-woven fabric coated with hot melt adhesive and provided with support |
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| CN109457536A (en) * | 2018-11-02 | 2019-03-12 | 广东天元汇邦新材料股份有限公司 | A kind of formaldehydeless decorative film adhesive and preparation method thereof |
| CN111285997A (en) * | 2018-12-06 | 2020-06-16 | 财团法人工业技术研究院 | Resin and hot melt adhesive |
| CN110078882A (en) * | 2019-04-28 | 2019-08-02 | 东莞华工佛塑新材料有限公司 | A kind of double-sided adhesive adhesive tape method for preparing polyurethane elastic body |
| CN110746893A (en) * | 2019-10-30 | 2020-02-04 | 南京昵酷户外用品有限公司 | Production and use method of hot melt belt |
| CN110982471A (en) * | 2019-12-05 | 2020-04-10 | 浙江工业大学之江学院 | Washable polyurethane adhesive composition and preparation method thereof |
| CN111070809A (en) * | 2019-12-23 | 2020-04-28 | 江苏吉润住宅科技有限公司 | Composite board |
| CN112358844A (en) * | 2020-10-22 | 2021-02-12 | 东莞市研思新材料科技有限公司 | Never-yellowing TPU (thermoplastic polyurethane) film glue for coating and preparation method and application thereof |
| CN112358844B (en) * | 2020-10-22 | 2022-08-16 | 东莞市研思新材料科技有限公司 | Never-yellowing TPU (thermoplastic polyurethane) film glue for coating and preparation method and application thereof |
| CN113185924A (en) * | 2021-05-24 | 2021-07-30 | 杭州锴越新材料有限公司 | Preparation method of non-woven fabric coated with hot melt adhesive and provided with support |
| CN115138414A (en) * | 2022-08-18 | 2022-10-04 | 脂谱生物科技(上海)有限公司 | High-temperature-resistant low-dissolution test tube |
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Application publication date: 20171124 |