CN107443858A - Polyurethane composite plate for automobile ceiling and preparation method thereof - Google Patents

Polyurethane composite plate for automobile ceiling and preparation method thereof Download PDF

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Publication number
CN107443858A
CN107443858A CN201710806817.1A CN201710806817A CN107443858A CN 107443858 A CN107443858 A CN 107443858A CN 201710806817 A CN201710806817 A CN 201710806817A CN 107443858 A CN107443858 A CN 107443858A
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China
Prior art keywords
layer
thickness
polymeric membrane
composite plate
polyurethane
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Pending
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CN201710806817.1A
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Chinese (zh)
Inventor
吴迪
朱志浩
刘钟
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ZHANGJIAGANG CHANGTAI AUTOMOBILE ACCOUTERMENT MATERIALS CO Ltd
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ZHANGJIAGANG CHANGTAI AUTOMOBILE ACCOUTERMENT MATERIALS CO Ltd
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Priority to CN201710806817.1A priority Critical patent/CN107443858A/en
Publication of CN107443858A publication Critical patent/CN107443858A/en
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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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter

Abstract

The present invention relates to a kind of polyurethane composite plate for automobile ceiling and preparation method thereof, mainly solves the problems, such as that polyurethane plate grammes per square metre is high, peeling force is low, sound-absorbing effect is poor in the prior art.The present invention is by using a kind of polyurethane composite plate for automobile ceiling, including at least one layer of PE films, at least one layer of glass fibre, at least one layer of polyethylene powder, at least one layer of polymeric membrane, at least one layer of polyurethane foam, at least one layer of non-woven fabrics；Polymeric membrane is provided with wherein between glass fibre and PE powder and/or between PE powder and polyurethane foam；The grammes per square metre of polymeric membrane is 15~25g/m2, fusing point is 115 DEG C~130 DEG C and preparation method thereof of technical scheme, preferably solves the problem, in the industrial production available for the polyurethane composite plate of automobile ceiling.

Description

Polyurethane composite plate for automobile ceiling and preparation method thereof
Technical field
The present invention relates to a kind of polyurethane composite plate and preparation method thereof, more particularly to a kind of gathering for automobile ceiling Urethane is compound
Sheet material and preparation method thereof.
Background technology
There is polyurethane composite plate sound-absorbing, heat-insulated, in light weight, easy to install, the characteristics of having no irritating odor to turn into current The staple product of domestic motor market.Multilayer composite board of polyurethane is to lay nonwoven fabric roll to the work of recombination line in the prior art Make on platform, spread short glass fiber and solids hot melt adhesive successively on non-woven fabrics, then put to polyurethane foam, in poly- ammonia Short glass fiber and solids hot melt adhesive are spread on ester plate successively, heating roll-in is compound, and multilayer composite board is obtained after cooling, The grammes per square metre of polyurethane composite plate is 1000g/m in the prior art2To 1100g/m2。
Chinese patent CN101628498A discloses a kind of production method of polyurethane plate for automobile ceiling and is included in again Tile non-woven fabrics on the crawler belt of conjunction machine, spreads short glass fiber, hot-melt adhesive powder successively in the above under certain temperature and pressure Carry out compound.
Chinese patent CN103538329B on the conveyer belt of composite production line from it is lower and under be sequentially arranged non-woven fabrics, nonwoven Cloth perforating heat meltable glued membrane, glass fabric or short glass fiber, PU punching hot melt adhesive films, then place polyurethane foam again It is sequentially arranged polyurethane perforating heat meltable glued membrane, glass-fiber-fabric or chopped glass fibre, PE from bottom to top in polyurethane foam Film preheat compound.
Polyurethane composite plate of the prior art uses two-layer nonwoven or double-deck PE films, with car roof lightweight It is required that raising, current inventor provides a kind of polyurethane composite plate for automobile ceiling and preparation method thereof.
The content of the invention
One of technical problems to be solved by the invention be polyurethane plate gram quantity height of the prior art, bad adhesion, A kind of the problem of sound-absorbing effect difference, there is provided new polyurethane composite plate for automobile ceiling.The composite board has grammes per square metre Low, the advantages of caking property is good, sound-absorbing effect is good.The two of the technical problems to be solved by the invention are to provide a kind of and solution technology The preparation method of the corresponding polyurethane composite plate for automobile ceiling of one of problem.
To solve one of above-mentioned technical problem, the technical solution adopted by the present invention is as follows：A kind of gathering for automobile ceiling Urethane composite board, including at least one layer of PE films, at least one layer of glass fibre, at least one layer of polyethylene powder, at least one layer of high score Sub- film, at least one layer of polyurethane foam, at least one layer of non-woven fabrics；Wherein between glass fibre and PE powder and/or PE powder is with gathering Polymeric membrane is provided between urethane foam；The grammes per square metre of polymeric membrane is 15~25g/m2, fusing point is 115 DEG C~130 DEG C.
In above-mentioned technical proposal, it is preferable that at least two layers of glass fibre, at least two layers of polyethylene powder, polymeric membrane is at least Two layers.
In above-mentioned technical proposal, it is preferable that include successively from top to bottom：First layer PE films, first layer glass fibre, first Floor height molecular film, first layer polyethylene powder, second layer polymeric membrane, polyurethane plate, third layer polymeric membrane, the second strata second Alkene powder, the 4th floor height molecular film, second layer glass fibre and non-woven fabrics.
In above-mentioned technical proposal, it is preferable that polymeric membrane is selected from vinyl polymer film, polypropylene polymeric membrane or polyamides At least one of amine polymeric membrane, thickness are 50~100um.
In above-mentioned technical proposal, it is preferable that the filament diameter of glass fibre is 3~12um, and thickness is 250~800um；It is poly- The thickness of urethane foam is 5~15mm, and the grammes per square metre of PE films is 35~50g/m2, fusing point be 100 DEG C~110 DEG C, thickness be 20~ 60um。
In above-mentioned technical proposal, it is preferable that polyethylene powder is selected from LLDPE, low density polyethylene (LDPE), superelevation At least one of molecular weight polyethylene or linear polyethylene, thickness are 20~80um；Non-woven fabrics is selected from spunlace non-woven cloth, heat seal At least one of non-woven fabrics, spun-bonded non-woven fabrics or melt spraying non-woven fabrics, thickness are 0.1~0.5mm.
To solve the two of above-mentioned technical problem, technical scheme provided by the invention is as follows：Polyurethane for automobile ceiling The preparation method of composite board, comprises the following steps：
(1) layer macromolecule membranous layer is added
Add layer at least one layer macromolecule membranous layer in polyurethane foam；
(2) strata ethene bisque is added
After layer macromolecule membranous layer is added, add layer at least one layer polyethylene bisque；
(3) sandwiching glass fibrous layer
After strata ethene bisque is added, add layer at least one layer glass layer；
(4) layer PE film layers are added
After sandwiching glass fibrous layer, add layer at least one layer PE film layers；
(5) layer nonwoven layer is added
After layer PE film layers are added, add layer at least one layer nonwoven layer
(6) toast compressing
The polyurethane composite plate of automobile ceiling is prepared using the compressing technique of baking oven baking.
In above-mentioned technical proposal, it is preferable that use baking oven to toast compressing technological temperature as 130 DEG C~180 DEG C, wherein At least two layers of sandwiching glass fiber, adds layer polyethylene powder at least two layers, adds floor height molecular film at least two layers.
In above-mentioned technical proposal, it is preferable that add layer successively from top to bottom：First layer PE films, first layer glass fibre, first Floor height molecular film, first layer polyethylene powder, second layer polymeric membrane, polyurethane plate, third layer polymeric membrane, the second strata second Alkene powder, the 4th floor height molecular film, second layer glass fibre and non-woven fabrics.
In above-mentioned technical proposal, it is preferable that polymeric membrane is selected from vinyl polymer film, polypropylene polymeric membrane or polyamides At least one of amine polymeric membrane, the grammes per square metre of polymeric membrane is 15~25g/m2, fusing point is 115 DEG C~130 DEG C, thickness 50 ~100um；The filament diameter of glass fibre is 3~12um, and thickness is 250~800um；The thickness of polyurethane foam (5) be 5~ The grammes per square metre of 15mm, PE film is 35~50g/m2, fusing point is 100 DEG C~110 DEG C, thickness 20-60um；Polyethylene powder is selected from linear At least one of low density polyethylene (LDPE), low density polyethylene (LDPE), ultra-high molecular weight polyethylene or linear polyethylene, thickness be 20~ 80um；Non-woven fabrics is selected from least one of spunlace non-woven cloth, heat seal non-woven fabrics, spun-bonded non-woven fabrics or melt spraying non-woven fabrics, thickness For 0.1~0.5mm.
In the present invention, by using at least one layer of polymeric membrane, its grammes per square metre is 15~25g/m2, and fusing point is 115 DEG C~130 DEG C, because the polymeric membrane grammes per square metre is light, peeling force is high, so that toasting the poly- ammonia of compressing formation using the polymeric membrane Ester composite board has the advantages of grammes per square metre is low, and caking property is good；Due to using the polymeric membrane, present inventors have surprisingly found that this is poly- The sound-absorption coefficient enhancing of urethane composite board, sound-absorbing effect is good, so that polyurethane composite plate grammes per square metre is reduced to 800g/m2, Cohesive force increases to 13N, and in the case where sound frequency is 1000f/Hz, sound-absorption coefficient increases to 0.70, so as to achieve preferable technology Effect.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
Embodiment 1
A kind of polyurethane composite plate for automobile ceiling, first layer PE films (grammes per square metre 50g/ is followed successively by from top to bottom m2, fusing point is 100 DEG C, thickness 20um), first layer glass fibre (filament diameter 12um, thickness 800um), first layer Polyethylene film (grammes per square metre 15g/m2, fusing point is 115 DEG C), thickness 50um, first layer LLDPE powder, thickness is 80um, second layer polyethylene film (grammes per square metre 15g/m2, fusing point is 115 DEG C) and thickness is 50um, (thickness is polyurethane plate 5mm), third layer polyethylene film (grammes per square metre 15g/m2, fusing point is 115 DEG C) and thickness is 50um, second layer linear low density polyethylene Alkene powder, thickness 80um, the 4th strata vinyl film (grammes per square metre 15g/m2, fusing point is 115 DEG C) and thickness is 50um, second layer glass Fiber (filament diameter 12um, thickness 800um), spunlace non-woven cloth (thickness 0.1mm)；Baking oven toasts compressing temperature For 180 DEG C, obtained product quality indicator is shown in Table 1.
Embodiment 2
A kind of polyurethane composite plate for automobile ceiling, first layer PE films (grammes per square metre 35g/ is followed successively by from top to bottom m2, fusing point is 110 DEG C, thickness 60um), first layer glass fibre (filament diameter 3um, thickness 250um), the first strata Propylene polymeric membrane (grammes per square metre 25g/m2, fusing point be 130 DEG C), thickness 100um, first layer ultra-high molecular weight polyethylene powder, Thickness is 20um, the second layer polypropylene polymeric membrane (grammes per square metre 25g/m2, fusing point be 130 DEG C), thickness 100um, polyurethane Sheet material (thickness 15mm), second layer PE films (grammes per square metre 35g/m2, fusing point is 110 DEG C, thickness 60um), second layer superelevation point Sub- weight northylen powder, thickness 20um, third layer polypropylene polymeric membrane (grammes per square metre 25g/m2, fusing point be 130 DEG C), thickness be 100um, second layer glass fibre (filament diameter 3um, thickness 250um), heat seal non-woven fabrics (thickness 0.5mm)；Baking oven Compressing temperature is toasted as 130 DEG C, obtained product quality indicator is shown in Table 1.
Embodiment 3
A kind of polyurethane composite plate for automobile ceiling, first layer spun-bonded non-woven fabrics (thickness is followed successively by from top to bottom For 0.3mm), first layer PE films (grammes per square metre 40g/m2, fusing point is 105 DEG C, thickness 40um), first layer glass fibre (monofilament A diameter of 5um, thickness 600um), first layer polyamide polymeric membrane (grammes per square metre 20g/m2, fusing point be 120 DEG C), thickness be 80um, first layer linear polyethylene powder, thickness 40um, second layer polyamide polymeric membrane (grammes per square metre 20g/m2, fusing point is 120 DEG C), thickness 80um, polyurethane plate (thickness 10mm), second layer PE films (grammes per square metre 40g/m2, fusing point be 105 DEG C, Thickness is 40um), second layer linear polyethylene powder, thickness 40um, second layer spun-bonded non-woven fabrics (thickness 0.3mm)；Baking oven Compressing temperature is toasted as 150 DEG C, obtained product quality indicator is shown in Table 1.
Embodiment 4
A kind of polyurethane composite plate for automobile ceiling, first layer PE films (grammes per square metre 40g/ is followed successively by from top to bottom m2, fusing point is 105 DEG C, thickness 40um), first layer glass fibre (filament diameter 5um, thickness 600um), the first strata Acid amides polymeric membrane (grammes per square metre 20g/m2, fusing point is 120 DEG C), thickness 80um, first layer linear polyethylene powder, thickness is 40um, second layer polyamide polymeric membrane (grammes per square metre 20g/m2, fusing point be 120 DEG C), thickness 80um, polyurethane plate (thickness Spend for 10mm), second layer PE films (grammes per square metre 40g/m2, fusing point is 105 DEG C, thickness 40um), third layer polyamide macromolecule Film (grammes per square metre 20g/m2, fusing point be 120 DEG C), thickness 80um, melt spraying non-woven fabrics (thickness 0.4mm)；Baking oven baking compacting Forming temperature is 140 DEG C, and obtained product quality indicator is shown in Table 1.
Embodiment 5
A kind of polyurethane composite plate for automobile ceiling, first layer PE films (grammes per square metre 40g/ is followed successively by from top to bottom m2, fusing point is 105 DEG C, thickness 40um), first layer glass fibre (filament diameter 5um, thickness 600um), the first strata Acid amides polymeric membrane (grammes per square metre 20g/m2, fusing point is 120 DEG C), thickness 80um, first layer linear polyethylene powder, thickness is 40um, second layer PE films (grammes per square metre 40g/m2, fusing point is 105 DEG C, thickness 40um), polyurethane plate (thickness 10mm), Second layer polyamide polymeric membrane (grammes per square metre 20g/m2, fusing point be 120 DEG C), second layer glass fibre (filament diameter 5um, Thickness is 600um), melt spraying non-woven fabrics (thickness 0.4mm)；It is 160 DEG C that baking oven, which toasts compressing temperature, and product quality is made Index is shown in Table 1.
Comparative example 1
A kind of polyurethane composite plate for automobile ceiling, first layer PE films (grammes per square metre 40g/ is followed successively by from top to bottom m2, fusing point is 105 DEG C, thickness 40um), first layer glass fibre (filament diameter 5um, thickness 600um), the first layer line Property polyethylene powder, thickness 40um, second layer PE films (grammes per square metre 40g/m2, fusing point is 105 DEG C, thickness 40um), polyurethane Sheet material (thickness 10mm), third layer PE films (grammes per square metre 40g/m2, fusing point is 105 DEG C, thickness 40um), second layer glass fibers Tie up (filament diameter 5um, thickness 600um), melt spraying non-woven fabrics (thickness 0.4mm)；Baking oven toasts compressing temperature 150 DEG C, obtained product quality indicator is shown in Table 1.
The embodiment 1-5 of table 1 automotive trim ceiling material product quality testing data
As shown in Table 1, reduced by using at least one layer of polymeric membrane, the grammes per square metre of polyurethane composite plate, cohesive force increases Add, in the case where sound frequency is 1000f/Hz, sound-absorption coefficient strengthens.

Claims (10)

1. a kind of polyurethane composite plate for automobile ceiling, including at least one layer of PE films, at least one layer of glass fibre, at least Layer of polyethylene powder, at least one layer of polymeric membrane, at least one layer of polyurethane foam, at least one layer of non-woven fabrics；Wherein in glass fibers Polymeric membrane is provided between dimension and PE powder and/or between PE powder and polyurethane foam；The grammes per square metre of polymeric membrane is 15~25g/ m2, fusing point is 115 DEG C~130 DEG C.
2. the polyurethane composite plate according to claim 1 for automobile ceiling, it is characterised in that glass fibre is at least Two layers, at least two layers of polyethylene powder, at least two layers of polymeric membrane.
3. the polyurethane composite plate according to claim 2 for automobile ceiling, it is characterised in that from top to bottom successively Including：First layer PE films, first layer glass fibre, first layer polymeric membrane, first layer polyethylene powder, second layer polymeric membrane, Polyurethane plate, third layer polymeric membrane, second layer polyethylene powder, the 4th floor height molecular film, second layer glass fibre and nonwoven Cloth.
4. the polyurethane composite plate according to claim 1 for automobile ceiling, it is characterised in that polymeric membrane is selected from At least one of vinyl polymer film, polypropylene polymeric membrane or polyamide polymeric membrane, thickness are 50~100um.
5. the polyurethane composite plate according to claim 1 for automobile ceiling, it is characterised in that the list of glass fibre A diameter of 3~the 12um of silk, thickness is 250~800um；The thickness of polyurethane foam is 5~15mm, the grammes per square metres of PE films for 35~ 50g/m2, fusing point is 100 DEG C~110 DEG C, and thickness is 20~60um.
6. the polyurethane composite plate according to claim 1 for automobile ceiling, it is characterised in that polyethylene powder is selected from At least one of LLDPE, low density polyethylene (LDPE), ultra-high molecular weight polyethylene or linear polyethylene, thickness are 20~80um；Non-woven fabrics is selected from least one of spunlace non-woven cloth, heat seal non-woven fabrics, spun-bonded non-woven fabrics or melt spraying non-woven fabrics, Thickness is 0.1~0.5mm.
7. the preparation method of the polyurethane composite plate for automobile ceiling described in claim 1, comprises the following steps：
(1) layer macromolecule membranous layer is added
Add layer at least one layer macromolecule membranous layer in polyurethane foam；
(2) strata ethene bisque is added
After layer macromolecule membranous layer is added, add layer at least one layer polyethylene bisque；
(3) sandwiching glass fibrous layer
After strata ethene bisque is added, add layer at least one layer glass layer；
(4) layer PE film layers are added
After sandwiching glass fibrous layer, add layer at least one layer PE film layers；
(5) layer nonwoven layer is added
After layer PE film layers are added, add layer at least one layer nonwoven layer
(6) toast compressing
The polyurethane composite plate of automobile ceiling is prepared using the compressing technique of baking oven baking.
8. the preparation method of the polyurethane composite plate according to claim 7 for automobile ceiling, it is characterised in that adopt It is 130 DEG C~180 DEG C, wherein at least two layers of sandwiching glass fiber to toast compressing technological temperature with baking oven, adds strata ethene At least two layers of powder, adds floor height molecular film at least two layers.
9. the preparation method of the polyurethane composite plate according to claim 8 for automobile ceiling, it is characterised in that from Add layer under above successively：First layer PE films, first layer glass fibre, first layer polymeric membrane, first layer polyethylene powder, the second layer Polymeric membrane, polyurethane plate, third layer polymeric membrane, second layer polyethylene powder, the 4th floor height molecular film, second layer glass fibers Peacekeeping non-woven fabrics.
10. the preparation method of the polyurethane composite plate according to claim 7 for automobile ceiling, it is characterised in that Polymeric membrane is selected from least one of vinyl polymer film, polypropylene polymeric membrane, polyamide polymeric membrane, polymeric membrane Grammes per square metre be 15~25g/m2, fusing point is 115 DEG C~130 DEG C, and thickness is 50~100um；The filament diameter of glass fibre be 3~ 12um, thickness are 250~800um；The thickness of polyurethane foam is 5~15mm, and the grammes per square metre of PE films is 35~50g/m2, fusing point is 100 DEG C~110 DEG C, thickness 20-60um；Polyethylene powder is selected from LLDPE, low density polyethylene (LDPE), supra polymer One kind in weight northylen or linear polyethylene, thickness are 20~80um；Non-woven fabrics be selected from spunlace non-woven cloth, heat seal non-woven fabrics, At least one of spun-bonded non-woven fabrics or melt spraying non-woven fabrics, thickness are 0.1~0.5mm.
CN201710806817.1A 2017-09-08 2017-09-08 Polyurethane composite plate for automobile ceiling and preparation method thereof Pending CN107443858A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110948951A (en) * 2019-11-22 2020-04-03 张家港长泰汽车饰件材料有限公司 High-strength low-gram-weight polyurethane composite board and preparation method and application thereof
WO2023045817A1 (en) * 2021-09-24 2023-03-30 无锡吉兴汽车声学部件科技有限公司 Canopy, preparation method therefor and use thereof

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Application publication date: 20171208