CN105619997A - Little-odor and few-VOCs (volatile organic compounds) automotive paper honeycomb composite board and dry-method forming process thereof - Google Patents
Little-odor and few-VOCs (volatile organic compounds) automotive paper honeycomb composite board and dry-method forming process thereof Download PDFInfo
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- CN105619997A CN105619997A CN201511019046.9A CN201511019046A CN105619997A CN 105619997 A CN105619997 A CN 105619997A CN 201511019046 A CN201511019046 A CN 201511019046A CN 105619997 A CN105619997 A CN 105619997A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- 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
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; 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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
Abstract
The invention discloses a little-odor and few-VOCs (volatile organic compounds) automotive paper honeycomb composite board, which comprises a paper honeycomb core layer, hot melt adhesive film layers, a non-woven fabric layer and a surface layer material, wherein the hot melt adhesive film layers are adhered to the upper surface and the lower surface of the paper honeycomb core layer; the non-woven fabric layer is adhered to the surface of a hot melt adhesive film; the surface layer material covers the non-woven fabric layer; the paper honeycomb core layer has a honeycomb-shaped structure consisting of hexagonal hole grids and triangular hole grids; a dentate adhering structure is formed between the surface layer material and the non-woven fabric layer; the hot melt adhesive film is prepared from the following raw materials of polyneopentylene-1,6-hexamethylene adipate glycol, a polyoxyethylene-polystyrene-polyoxyethylene triblock copolymer, polyethylene acrylate, pentaerythritol, neopentyl glycol, hexadecanoic acid, lauryl-L-glutamic acid-[alpha],[gamma]-dibutylamine, zinc ricinoleate, 2,5-dimethyl-2,5-di-(tert-butylperoxy)acetylene, a hydroxyketone photoinitiator and the like. The little-odor and few-VOCs automotive paper honeycomb composite board is little in odor; the VOCs are below a standard limit minimum.
Description
Technical field
The present invention relates to automobile honeycomb composite cardboard, in particular to automobile honeycomb composite cardboard and the dry process for forming thereof of the low VOC of low smell.
Background technology
Honeycomb composite cardboard high strength, weight is light, the shaping feature such as simple and easy, is widely used in the automotive upholsteries such as spare tyre lid, hat rack, skylight slip lid in recent years, progressively substitutes the materials such as traditional wood flour board, GMT plate, plank. In recent years, the emission problem of the indoor VOC of car causes showing great attention to of people. VOC be easy under normal temperature volatilization organism, it is commonly known that kind comprise formaldehyde, toluene, vinylbenzene etc. In car, VOC main source jointly volatilizees and produce by each component, and the interior material of main volatilization has plastic component, foam, leatherware, fabric and carpet, adhesion promoter and coating. Most of automotive interior part all contains a certain amount of volatile organic compounds, when temperature reach a certain height, these volatile matter will discharge, uncomfortable smell is made us in generation, even cause the uncomfortable reaction such as headache, dry cough and allergy, thus the health of occupant is damaged. Some then can form fog and condense on front windshield, thus affects the sight line of officer.
Summary of the invention
In view of this, it is an object of the invention to provide the automobile honeycomb composite cardboard of a kind of low VOC of low smell and dry process for forming thereof, by the control of each component material VOC controls the VOC of whole car, smell is low, VOC organic volatile is lower than below standard limit minimum value.
The automobile honeycomb composite cardboard of the low VOC of low smell of the present invention, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 10-20 part, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 5-10 part, polyethylene acrylate 5-10 part, tetramethylolmethane 3-7 part, neopentyl glycol 2-6 part, hexadecanoic acid 1-3 part, lauroyl-Pidolidone-��, ��-dibutylamine 0.1-2 part, negative ion powder 0.5-2.5 part, zinc ricinoleate 0.2-1.2 part, 2,5-dimethyl-2,5-pair-(t-butylperoxy) own alkynes 0.5-1 part, hydroxyketone photoinitiator 0.1-1 part, oxidation inhibitor 0.1-1 part, fire retardant 0.1-1 part,
Further, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1, 6-hexylene glycol esterdiol 15 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 8 parts, polyethylene acrylate 8 parts, tetramethylolmethane 5 parts, neopentyl glycol 4 parts, hexadecanoic acid 2 parts, lauroyl-Pidolidone-��, ��-dibutylamine 1 part, negative ion powder 1.5 parts, zinc ricinoleate 0.8 part, 2, 5-dimethyl-2, 5-pair-0.8 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.6 part, 0.6 part, oxidation inhibitor, fire retardant 0.6 part,
Further, described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, 3,3'-(hexanaphthene-1,4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2,9-dihydroxyl-1, one or more mixtures in 10-docosyl phenyl-2,9-dimethyl decane-1,10-diketone.
Further, described oxidation inhibitor is 4,6-two (dodecyl thiomethyl)-O-cresols, four [��-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2,4-di-tert-butyl-phenyl] phosphorous acid ester, one or more mixtures in 3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid Octadecane alcohol ester;
Further, described fire retardant is one or more mixtures in melamine cyanurate, melamine polyphosphate, ammonium polyphosphate;
Further, described hot melt adhesive film thickness gram is heavily 80-200g/m2;
Further, described hexagonal hole lattice cross section is positive hexagon, and described tri-angle-holed lattice are cross section is equilateral triangle; Each hexagonal hole lattice are arranged on limit altogether with corresponding six tri-angle-holed lattice respectively;
Further, the hot melt adhesive rete on upper and lower two surface of described paper honeycomb core layer is two layers, is provided with nonwoven layer between described two layers of hot melt adhesive rete.
The present invention also discloses the preparation method of the automobile honeycomb composite cardboard of a kind of low VOC of low smell, be sequentially laminated at temperature is 180��220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to heat after compound 60��90s with surface material compression moulding in mould, mold temperature 200��250 DEG C, forming pressure 7.5��8.5MPa, molding time 55��90s;
Further, adopt infrared heating, after formed product, carry out surrounding edge sealing process.
The useful effect of the present invention: the automobile honeycomb composite cardboard of the low VOC of low smell of the present invention and dry process for forming thereof, by the control of each component material VOC being controlled the VOC of whole car, smell is low, VOC organic volatile is lower than below standard limit minimum value, and this composition board has following constructional feature: in thermograde upper zone, the relative density height of cellular type core and aperture are little, make the temperature distribution on cross section evenly, reduce the difference of thermograde, thus make more honeycomb hole lattice and fluid carry out thermal exchange, improve shifting thermo-efficiency and the cross section diameter of composition board, improve thermal diffusivity, and then improve the thermotolerance of perforated plate, the periodic cellular structure being made up of different size and shape and the structural sheet acting in conjunction of its both sides, viscosity intensity height between structural sheet, avoid subsiding of honeycomb sandwich construction under stress, the performance of honeycomb composite cardboard is optimized to greatest extent, strengthen the yield strength of honeycomb composite cardboard, shear rigidity, and then improve composition board supporting capacity, energy-conserving and environment-protective, save Financial cost simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the positive hexagonal hole lattice of the paper honeycomb core layer of the present invention and the orthographic plan of the cellular unit of six equilateral triangle hole lattice compositions;
Fig. 2 is the honeycomb core layer plane structure partial schematic diagram being made up of cellular unit.
Embodiment
The automobile honeycomb composite cardboard of the low VOC of low smell of the present invention, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 10-20 part, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer (PEO-PS-PEO) 5-10 part, polyethylene acrylate 5-10 part, tetramethylolmethane 3-7 part, neopentyl glycol 2-6 part, hexadecanoic acid 1-3 part, lauroyl-Pidolidone-��, ��-dibutylamine 0.1-2 part, negative ion powder 0.5-2.5 part, zinc ricinoleate 0.2-1.2 part, 2,5-dimethyl-2,5-pair-(t-butylperoxy) own alkynes 0.5-1 part, hydroxyketone photoinitiator 0.1-1 part, oxidation inhibitor 0.1-1 part, fire retardant 0.1-1 part, this hot melt adhesive film has the function absorbing smell, removing part VOC, and VOC volatile gases can be closed in interiors of products, reduces the release of VOC. by the synergy of negative ion powder and zinc ricinoleate, hydroxyketone photoinitiator, absorbing smell and VOC volatile gases is closed in interiors of products, reduce the release of VOC, between each component of hot melt adhesive film, consistency is good, component polarities match is good, there will not be point phenomenon mutually.
In the present embodiment, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1, 6-hexylene glycol esterdiol 15 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 8 parts, polyethylene acrylate 8 parts, tetramethylolmethane 5 parts, neopentyl glycol 4 parts, hexadecanoic acid 2 parts, lauroyl-Pidolidone-��, ��-dibutylamine 1 part, negative ion powder 1.5 parts, zinc ricinoleate 0.8 part, 2, 5-dimethyl-2, 5-pair-0.8 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.6 part, 0.6 part, oxidation inhibitor, fire retardant 0.6 part.
In the present embodiment, described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, 3,3'-(hexanaphthene-1,4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2,9-dihydroxyl-1, one or more mixtures in 10-docosyl phenyl-2,9-dimethyl decane-1,10-diketone; Hydroxyketone photoinitiator can reduce until eliminating VOC emission.
In the present embodiment, described oxidation inhibitor is 4,6-two (dodecyl thiomethyl)-O-cresols, four [��-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2,4-di-tert-butyl-phenyl] phosphorous acid ester, one or more mixtures in 3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid Octadecane alcohol ester.
In the present embodiment, described fire retardant is one or more mixtures in melamine cyanurate, melamine polyphosphate, ammonium polyphosphate.
In the present embodiment, described hot melt adhesive film gram is heavily 80-200g/m2, this parameter guarantees the thickness of hot melt adhesive rete, and then guarantees cohesive strength.
In the present embodiment, described hexagonal hole lattice cross section is positive hexagon, and described tri-angle-holed lattice are cross section is equilateral triangle, each hexagonal hole lattice are arranged on limit altogether with corresponding six tri-angle-holed lattice respectively, namely hexagonal hole lattice 1 lattice 2 tri-angle-holed with six are connected, and the tri-angle-holed same facade of lattice 2 with six respectively, hexagonal hole lattice 1 are adopted to improve the anti-shear ability of interlayer, but just hexagonal heat dispersion is lower than adopting the thermal diffusivity of equilateral triangle hole lattice, therefore positive hexagon and trilateral is adopted to combine composition periodic structure, common thermal diffusivity and the bearing capacity improving composition board, in thermograde upper zone, the relative density height of cellular type core and aperture are little, make the temperature distribution on cross section evenly, reduce the difference of thermograde, thus make more honeycomb hole lattice and fluid carry out thermal exchange, improve shifting thermo-efficiency and the cross section diameter of composition board, improve thermal diffusivity, and then improve the thermotolerance of perforated plate, the periodic cellular structure being made up of different size and shape and the structural sheet acting in conjunction of its both sides, viscosity intensity height between structural sheet, avoid subsiding of honeycomb sandwich construction under stress.
In the present embodiment, the hot melt adhesive rete on upper and lower two surface of described paper honeycomb core layer is two layers, is provided with nonwoven layer between described two layers of hot melt adhesive rete.
The present invention also discloses the preparation method of the automobile honeycomb composite cardboard of a kind of low VOC of low smell, be sequentially laminated at temperature is 180��220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to heat after compound 60��90s with surface material compression moulding in mould, mold temperature 200-250 DEG C, forming pressure 7.5��8.5MPa, molding time 55-90s; Adopt infrared heating, after formed product, carry out surrounding edge sealing process; Molding device is simple, and equipment investment is little. shaping single stage method, can produce continuously, usefulness height. and material environment friendly, detachable recycling after waste and old. odorlessness. materials procurement is convenient.
Embodiment one
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 10 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 5 parts, polyethylene acrylate 5 parts, tetramethylolmethane 3 parts, neopentyl glycol 2 parts, hexadecanoic acid 1 part, lauroyl-Pidolidone-��, ��-dibutylamine 0.1 part, negative ion powder 0.5 part, zinc ricinoleate 0.2 part, 2,5-dimethyl-2,5-pair-0.5 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.1 part, 0.1 part, oxidation inhibitor, fire retardant 0.1 part, every layer of hot melt adhesive film gram is heavily 80g/m2��
In the present embodiment, described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, being replaced by 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone by equivalent weight part is 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, one in 10-diketone, or replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone and 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, the mixture of 10-diketone, all obtain qualified product.
In the present embodiment, described oxidation inhibitor is 4, two (dodecyl the thiomethyl)-O-cresols of 6-, according to equivalent weight part by 4, it is four [��-(3 that two (dodecyl the thiomethyl)-O-cresols of 6-is replaced, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) one in propionic acid Octadecane alcohol ester, or 4, two (dodecyl the thiomethyl)-O-cresols of 6-and four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) mixture of propionic acid Octadecane alcohol ester, all obtain qualified product.
In the present embodiment, described fire retardant is melamine cyanurate, according to equivalent weight part, melamine cyanurate is replaced as the one in melamine polyphosphate, ammonium polyphosphate, or the mixture of melamine cyanurate and melamine polyphosphate, ammonium polyphosphate, all must qualified product.
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, paper honeycomb core, hot melt adhesive film, nonwoven layer are sequentially laminated in baking oven, temperature be adopt at 180 DEG C after infrared heating compound 160s with surface material edge sealing process after compression moulding in mould, mold temperature 200 DEG C, forming pressure 7.5MPa, molding time 55s.
Embodiment two
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 20 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 10 parts, polyethylene acrylate 10 parts, tetramethylolmethane 7 parts, neopentyl glycol 6 parts, hexadecanoic acid 3 parts, lauroyl-Pidolidone-��, ��-dibutylamine 2 parts, negative ion powder 2.5 parts, zinc ricinoleate 1.2 parts, 2,5-dimethyl-2,5-pair-1 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 1 part, 1 part, oxidation inhibitor, fire retardant 1 part, every layer of hot melt adhesive film gram is heavily 200g/m2��
In the present embodiment, described hydroxyketone photoinitiator is 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), by equivalent weight part by 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone) replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, one in 10-diketone, or replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone and 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, the mixture of 10-diketone, all obtain qualified product.
In the present embodiment, described oxidation inhibitor is four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, according to equivalent weight part by four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester replace be 4, two (dodecyl the thiomethyl)-O-cresols of 6-, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) one in propionic acid Octadecane alcohol ester, or 4, two (dodecyl the thiomethyl)-O-cresols of 6-and four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) mixture of propionic acid Octadecane alcohol ester, all obtain qualified product.
In the present embodiment, described fire retardant is melamine polyphosphate, according to equivalent weight part, melamine polyphosphate is replaced as the one in melamine cyanurate, ammonium polyphosphate, or the mixture of melamine cyanurate and melamine polyphosphate, ammonium polyphosphate, all must qualified product.
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, be sequentially laminated at temperature is 220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to adopt after infrared heating compound 69 0s with surface material edge sealing process after compression moulding in mould, mold temperature 250 DEG C, forming pressure 8.5MPa, molding time 90s.
Embodiment three
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 10 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 10 parts, polyethylene acrylate 5 parts, tetramethylolmethane 7 parts, neopentyl glycol 2 parts, hexadecanoic acid 3 parts, lauroyl-Pidolidone-��, ��-dibutylamine 0.1 part, negative ion powder 2.5 parts, zinc ricinoleate 0.2 part, 2,5-dimethyl-2,5-pair-1 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.1 part, 1 part, oxidation inhibitor, fire retardant 0.1 part, every layer of hot melt adhesive film gram is heavily 90g/m2��
In the present embodiment, described hydroxyketone photoinitiator is 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, 10-diketone, by equivalent weight part by 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, it is 3 that 10-diketone is replaced, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), one in 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, or replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone and 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, the mixture of 10-diketone, all obtain qualified product.
In the present embodiment, described oxidation inhibitor is di-tert-butyl methyl phenol, being replaced by di-tert-butyl methyl phenol according to equivalent weight part is four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 4, two (dodecyl the thiomethyl)-O-cresols of 6-, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) one in propionic acid Octadecane alcohol ester, or 4, two (dodecyl the thiomethyl)-O-cresols of 6-and four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) mixture of propionic acid Octadecane alcohol ester, all obtain qualified product.
In the present embodiment, described fire retardant is ammonium polyphosphate, according to equivalent weight part, ammonium polyphosphate is replaced as the one in melamine polyphosphate, melamine cyanurate, or the mixture of melamine cyanurate and melamine polyphosphate, ammonium polyphosphate, all must qualified product.
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, be sequentially laminated at temperature is 190 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to adopt after infrared heating compound 70s with surface material edge sealing process after compression moulding in mould, mold temperature 220 DEG C, forming pressure 8MPa, molding time 65s.
Embodiment four
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 20 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 5 parts, polyethylene acrylate 10 parts, tetramethylolmethane 3 parts, neopentyl glycol 6 parts, hexadecanoic acid 1 part, lauroyl-Pidolidone-��, ��-dibutylamine 2 parts, negative ion powder 0.5 part, zinc ricinoleate 1.2 parts, 2,5-dimethyl-2,5-pair-0.5 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 1 part, 0.1 part, oxidation inhibitor, fire retardant 1 part, every layer of hot melt adhesive film gram is heavily 150g/m2��
In the present embodiment, described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, being replaced by 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone by equivalent weight part is 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, one in 10-diketone, or replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone and 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, the mixture of 10-diketone, all obtain qualified product.
In the present embodiment, described oxidation inhibitor is three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, , being replaced by ammonium polyphosphate according to equivalent weight part is four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, 4, one in two (dodecyl the thiomethyl)-O-cresols of 6-, or 4, two (dodecyl the thiomethyl)-O-cresols of 6-and four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) mixture of propionic acid Octadecane alcohol ester, all obtain qualified product.
In the present embodiment, described fire retardant is melamine cyanurate, according to equivalent weight part, melamine cyanurate is replaced as the one in melamine polyphosphate, ammonium polyphosphate, or the mixture of melamine cyanurate and melamine polyphosphate, ammonium polyphosphate, all must qualified product.
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, be sequentially laminated at temperature is 210 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to adopt after infrared heating compound 80s with surface material edge sealing process after compression moulding in mould, mold temperature 240 DEG C, forming pressure 7.8MPa, molding time 70s.
Embodiment five
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 15 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 5 parts, polyethylene acrylate 7 parts, tetramethylolmethane 7 parts, neopentyl glycol 2 parts, hexadecanoic acid 2 parts, lauroyl-Pidolidone-��, ��-dibutylamine 2 parts, negative ion powder 0.5 part, zinc ricinoleate 1 part, 2,5-dimethyl-2,5-pair-1 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.5 part, 0.1 part, oxidation inhibitor, fire retardant 1 part, every layer of hot melt adhesive film gram is heavily 130g/m2��
In the present embodiment, described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, being replaced by 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone by equivalent weight part is 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, one in 10-diketone, or replace as 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone and 3, 3'-(hexanaphthene-1, 4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2, 9-dihydroxyl-1, 10-docosyl phenyl-2, 9-dimethyl decane-1, the mixture of 10-diketone, all obtain qualified product.
In the present embodiment, described oxidation inhibitor is 4, two (dodecyl the thiomethyl)-O-cresols of 6-, according to equivalent weight part by 4, it is four [��-(3 that two (dodecyl the thiomethyl)-O-cresols of 6-is replaced, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) one in propionic acid Octadecane alcohol ester, or 4, two (dodecyl the thiomethyl)-O-cresols of 6-and four [��-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2, 4-di-tert-butyl-phenyl] phosphorous acid ester, 3-(3, 5-di-tert-butyl-hydroxy phenyl) mixture of propionic acid Octadecane alcohol ester, all obtain qualified product.
In the present embodiment, described fire retardant is melamine cyanurate, according to equivalent weight part, melamine cyanurate is replaced as the one in melamine polyphosphate, ammonium polyphosphate, or the mixture of melamine cyanurate and melamine polyphosphate, ammonium polyphosphate, all must qualified product.
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, be sequentially laminated at temperature is 220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to adopt after infrared heating compound 80s with surface material edge sealing process after compression moulding in mould, mold temperature 230 DEG C, forming pressure 8.3MPa, molding time 85s.
Embodiment six
The automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 15 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 8 parts, polyethylene acrylate 8 parts, tetramethylolmethane 5 parts, neopentyl glycol 4 parts, hexadecanoic acid 2 parts, lauroyl-Pidolidone-��, ��-dibutylamine 1 part, negative ion powder 1.5 parts, zinc ricinoleate 0.8 part, 2,5-dimethyl-2,5-pair-0.8 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.6 part, 0.6 part, oxidation inhibitor, fire retardant 0.6 part, every layer of hot melt adhesive film gram is heavily 180g/m2��
The preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell of the present embodiment, be sequentially laminated at temperature is 220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to adopt after infrared heating compound 85s with surface material edge sealing process after compression moulding in mould, mold temperature 245 DEG C, forming pressure 8.5MPa, molding time 75s.
In above-described embodiment, described negative ion powder is one or more mixtures in silicon-dioxide, aluminium sesquioxide, titanium dioxide, boron trioxide.
In above-described embodiment, after each component raw material fully being mixed according to formula, by extruding pelletization, further curtain coating obtains hot melt adhesive film, and hot melt adhesive film preparation method of the prior art can be adopted to prepare the hot melt adhesive film of the present invention.
What finally illustrate is, above embodiment is only in order to illustrate the technical scheme of the present invention and unrestricted, although with reference to better embodiment to invention has been detailed explanation, it will be understood by those within the art that, the technical scheme of the present invention can be modified or equivalent replacement, and not departing from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of the right of the present invention.
Claims (10)
1. the automobile honeycomb composite cardboard of the low VOC of low smell, it is characterised in that: described composition board comprises paper honeycomb core layer, it is adhered to the hot melt adhesive rete on upper and lower two surface of paper honeycomb core layer, the nonwoven layer being adhered to hot melt adhesive film surface and the surface material being covered in nonwoven layer, described paper honeycomb core layer is the polynuclear plane being made up of hexagonal hole lattice and tri-angle-holed lattice, in the bonding structure of tooth shape between described surface material and nonwoven layer, described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1,6-HD esterdiol 10-20 part, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 5-10 part, polyethylene acrylate 5-10 part, tetramethylolmethane 3-7 part, neopentyl glycol 2-6 part, hexadecanoic acid 1-3 part, lauroyl-Pidolidone-��, ��-dibutylamine 0.1-2 part, negative ion powder 0.5-2.5 part, zinc ricinoleate 0.2-1.2 part, 2,5-dimethyl-2,5-pair-(t-butylperoxy) own alkynes 0.5-1 part, hydroxyketone photoinitiator 0.1-1 part, oxidation inhibitor 0.1-1 part, fire retardant 0.1-1 part.
2. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 1, it is characterized in that: described hot melt adhesive film raw material comprises following component by weight: poly-hexanodioic acid neopentyl glycol-1, 6-hexylene glycol esterdiol 15 parts, polyoxyethylene-polystyrene-poly ethylene oxide triblock copolymer 8 parts, polyethylene acrylate 8 parts, tetramethylolmethane 5 parts, neopentyl glycol 4 parts, hexadecanoic acid 2 parts, lauroyl-Pidolidone-��, ��-dibutylamine 1 part, negative ion powder 1.5 parts, zinc ricinoleate 0.8 part, 2, 5-dimethyl-2, 5-pair-0.8 part, (t-butylperoxy) own alkynes, hydroxyketone photoinitiator 0.6 part, 0.6 part, oxidation inhibitor, fire retardant 0.6 part.
3. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 1, it is characterized in that: described hydroxyketone photoinitiator is 2-hydroxyl-1-(4-(4-(2-hydroxy-2-methyl myristoyl) phenmethyl) phenyl)-2-methyl pentadecane-1-ketone, 3,3'-(hexanaphthene-1,4-bis-base) two (2-hydroxyl-1-xenyl-2-methylpropane-1-ketone), 2,9-dihydroxyl-1,10-docosyl phenyl-2, one or more mixtures in 9-dimethyl decane-1,10-diketone.
4. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 3, it is characterized in that: described oxidation inhibitor is 4,6-two (dodecyl thiomethyl)-O-cresols, four [��-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, di-tert-butyl methyl phenol, three [2,4-di-tert-butyl-phenyl] phosphorous acid ester, one or more mixtures in 3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid Octadecane alcohol ester.
5. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 4, it is characterised in that: described fire retardant is one or more mixtures in melamine cyanurate, melamine polyphosphate, ammonium polyphosphate.
6. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 1, it is characterised in that: described hot melt adhesive film gram is heavily 80-200g/m2��
7. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 1, it is characterised in that: described hexagonal hole lattice cross section is positive hexagon, and described tri-angle-holed lattice are cross section is equilateral triangle; Each hexagonal hole lattice are arranged on limit altogether with corresponding six tri-angle-holed lattice respectively.
8. the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 7, it is characterised in that: the hot melt adhesive rete on upper and lower two surface of described paper honeycomb core layer is two layers, is provided with nonwoven layer between described two layers of hot melt adhesive rete.
9. the preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 1, it is characterized in that: be sequentially laminated at temperature is 180��220 DEG C by paper honeycomb core, hot melt adhesive film, nonwoven layer to heat after compound 60��90s with surface material compression moulding in mould, mold temperature 200��250 DEG C, forming pressure 7.5��8.5MPa, molding time 55��90s.
10. the preparation method of the automobile honeycomb composite cardboard of the low VOC of low smell according to claim 9, it is characterised in that: adopt infrared heating, after formed product, carry out surrounding edge sealing process.
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| CN115449341A (en) * | 2022-10-08 | 2022-12-09 | 上海方田粘合剂技术有限公司 | Plasticizer-free hot-melt pressure-sensitive adhesive capable of being coated at low temperature and preparation method thereof |
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