CN103171235B - The production method of the inflatable Light laminated board of a kind of sandwich layer - Google Patents
The production method of the inflatable Light laminated board of a kind of sandwich layer Download PDFInfo
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- CN103171235B CN103171235B CN201310072931.8A CN201310072931A CN103171235B CN 103171235 B CN103171235 B CN 103171235B CN 201310072931 A CN201310072931 A CN 201310072931A CN 103171235 B CN103171235 B CN 103171235B
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Abstract
The invention discloses the production method of the inflatable Light laminated board of a kind of sandwich layer, belong to industrial production thermoplastic composite technical field.This laminate is made up of modified polypropene (PP) sheet material, non-woven fabrics sandwich layer, polyethylene (PE) film and PETG (PET) non-woven fabrics, belongs to typical sandwich structure sheet material; Specifically produce according to following step: non-woven fabrics sandwich layer is laid on PP sheet material, and then spread PE film on non-woven fabrics sandwich layer, finally PET non-woven fabrics is layered on above PE film.Again sandwich structure sheet material is cured plasticizing through 140-220 DEG C, then hot-forming at 160-240 DEG C, finally by pressure roller cooling, prepare Light laminated board.Glass fibre orientation in non-woven fabrics sandwich layer time hot-forming, sandwich layer experience is once expanded and recompression process, and the interior of laminates structure obtained thus is comparatively loose, and thermal conductivity factor is low, thus has better heat-proof quality.
Description
Technical field
The invention belongs to industrial production thermoplastic composite technical field, relate to a kind of production Light laminated board thermoplastic composite technique.
Background technology
Cutting out property of glass fiber reinforced polypropylene complex fiber material fabric is good, available low-pressure molding is shaped to rapidly the structure of homogeneous, thermoplastic fibre distribution is tight and even, glass fiber can very fast proofing and soaking into, shock-resistant and the good corrosion resistance of composite product, and it is rapidly shaping, specific strength is high, easy recovery, 40%-60% can be reached with the product fiber content that it makes, its available low-pressure mould-forming is the structure of homogeneous, makes large area goods, greatly reduces the cost of thermoplastic composite.
Ceiling and rear flank wall interior panel are the important component parts of automotive trim panel, and its effect plays heat insulation, noise reduction, the comfortableness of raising passenger riding and the effect of security decorating interior space while.This series products is generally made up of resin base material, cushion and surface decoration material, and three is by hot pressing compound and be shaped to the inside gadget with certain rigidity.
Summary of the invention
Order of the present invention is to provide the production method of the inflatable Light laminated board of a kind of sandwich layer.
Technical scheme of the present invention is as follows:
The invention discloses a kind of production method of Light laminated board, this laminate is made up of modified polypropene (PP) sheet material, non-woven fabrics sandwich layer, polyethylene (PE) film and PETG (PET) non-woven fabrics, belongs to typical sandwich structure sheet material; Specifically produce according to following step: non-woven fabrics sandwich layer is laid on PP sheet material, and then spread PE film on non-woven fabrics sandwich layer, finally PET non-woven fabrics is layered on above PE film.Again sandwich structure sheet material is cured plasticizing through 140-220 DEG C, then hot-forming at 160-240 DEG C, finally by pressure roller (roller temperature 40-60 DEG C) cooling, prepare Light laminated board.
The preparation method of wherein said non-woven fabrics sandwich layer, carry out according to following step: adopt combined fiberglass and polypropylene fibre blended, obtain through shredding, combing, lapping, acupuncture, shaping acupuncture, obtained nonwoven thickness 2-6mm; Wherein combined fiberglass is made up of the glass fibre of different length, and combined fiberglass length is 10-100mm, the addition of combined fiberglass be polypropylene fibre be 10-60% by quality ratio.
The preparation method of wherein said non-woven fabrics sandwich layer, wherein acupuncture is one or more compositions of general acupuncture, fork-shaped pricker, side jag pricker.
The preparation method of wherein said non-woven fabrics sandwich layer, described glass fibre is made up of one or more of alkali-free glass fibre, high-modulus glass fiber, refractory glass fibre and high-strength glass fibre.
The preparation method of wherein said non-woven fabrics sandwich layer, described combined fiberglass, is made up of the glass fibre of different length, and combined fiberglass length is 30-60mm.
The preparation method of wherein said non-woven fabrics sandwich layer, described combined fiberglass addition is preferably the 20-40%. of polypropylene fibre quality
Wherein said MODIFIED PP sheet material comprises copolymerization PP and homopolymerization PP by PP() to add polypropylene grafted maleic anhydride (PP-g-MAH) blended obtained, and its surface density is 100-500 gram/m;
The surface density of above-mentioned PE film is 30-60 gram/m;
The surface density of above-mentioned PET non-woven fabrics is 100-300 gram/m;
Above-mentioned sandwich structure sheet material cures plasticizing, and described stoving temperature 140-220 DEG C, preferable temperature is 160-200 DEG C.
Above-mentioned hot-forming, described hot-forming temperature 160-240 DEG C, preferred 180-220 DEG C.
In the sandwich layer of light weight board prepared by the present invention, glass fibre is by acrylic resin adhesion and remain compression rolled state, and during hot briquetting, along with the melting of acrylic resin, glass fibre overcomes melt bonds power and stretched, and shows as sheet material and expands.Expansion rate can reach 180%-300% after tested.
Glass fibre orientation in non-woven fabrics sandwich layer when hot-forming, sandwich layer experience is once expanded and recompression process, and the interior of laminates structure obtained thus is comparatively loose, and thermal conductivity factor is low, thus has better heat-proof quality.The nondirectional glass fibre in intermediate layer makes material have the feature of high rigidity and low weight per unit area with the orientation glass fibre (corresponding pulling force and pressure direction) that has of superficial layer simultaneously.The instructions for use of the top load such as automobile, steamer protecting component can be met, there is wide application prospect.
detailed description of the invention:
Below in conjunction with embodiment, the present invention is further illustrated, but does not limit the present invention.Except as otherwise noted, all numbers and percentage is all in mass in an embodiment.
Embodiment 1
Prepare non-woven fabrics sandwich layer.Get the length glass fibre of 100 parts of polypropylene fibres and 20 parts of certain proportionings.Fully shredding is mixed through thick opener, then blending box is delivered to by cotton transport wind, evenly prolong silk floss, refined opener is delivered to again by blower fan, after essence shredding, carding machine is delivered to by blower fan, the fiber of shredding process is carded to equally distributed fleece by carding machine, be delivered on lapping machine through air blowing cotton transport, fleece good for combing is carried out lapping and is paved into multi-layered web by lapping machine, then by feeding machine, fleece is delivered to pre-needling machine, pre-pricking machine stings through row in advance to fleece, fleece after pre-thorn carries out sizing acupuncture through main-needling machine, then by rolling bead cutter non-woven fabrics deburring rolling process good for main acupuncture, obtained non-woven fabrics.
Prepare battenboard.According to sandwich product structure, non-woven fabrics sandwich layer is laid on PP sheet material, and then spreads PE film on non-woven fabrics sandwich layer, finally PET non-woven fabrics is layered on above PE film.The above-mentioned sheet material sandwich layer with sandwich structure laid is sent in baking oven and cures plasticizing, melt impregnation at 220 DEG C, then by continuous print hot pressing compound, through sufficient cooling and shaping, obtain finished product by size deburring.
Embodiment 2
Prepare non-woven fabrics sandwich layer.Get the glass fibre of 100 parts of polypropylene fibres and 40 parts of different lengths.Fully shredding is mixed through thick opener, then blending box is delivered to by cotton transport wind, evenly prolong silk floss, refined opener is delivered to again by blower fan, after essence shredding, carding machine is delivered to by blower fan, the fiber of shredding process is carded to equally distributed fleece by carding machine, be delivered on lapping machine through air blowing cotton transport, fleece good for combing is carried out lapping and is paved into multi-layered web by lapping machine, then by feeding machine, fleece is delivered to pre-needling machine, pre-pricking machine stings through row in advance to fleece, fleece after pre-thorn carries out sizing acupuncture through main-needling machine, then by rolling bead cutter non-woven fabrics deburring rolling process good for main acupuncture, obtained non-woven fabrics.
Prepare battenboard.According to sandwich product structure, non-woven fabrics sandwich layer is laid on PP sheet material, and then spreads PE film on non-woven fabrics sandwich layer, finally PET non-woven fabrics is layered on above PE film.The above-mentioned sheet material with sandwich structure laid is sent in baking oven and cures plasticizing, melt impregnation at 140 DEG C, then by continuous print hot pressing compound (roller temperature 180 DEG C), through sufficient cooling and shaping (roller temperature 50 DEG C), obtain finished product by size deburring.
Embodiment 3
Prepare non-woven fabrics sandwich layer.Get the glass fibre of 100 parts of polypropylene fibres and 30 parts of different lengths.Fully shredding is mixed through thick opener, then blending box is delivered to by cotton transport wind, evenly prolong silk floss, refined opener is delivered to again by blower fan, after essence shredding, carding machine is delivered to by blower fan, the fiber of shredding process is carded to equally distributed fleece by carding machine, be delivered on lapping machine through air blowing cotton transport, fleece good for combing is carried out lapping and is paved into multi-layered web by lapping machine, then by feeding machine, fleece is delivered to pre-needling machine, pre-pricking machine stings through row in advance to fleece, fleece after pre-thorn carries out sizing acupuncture through main-needling machine, then by rolling bead cutter non-woven fabrics deburring rolling process good for main acupuncture, obtained non-woven fabrics.
Prepare battenboard.According to sandwich product structure, non-woven fabrics sandwich layer is laid on PP sheet material, and then spreads PE film on non-woven fabrics sandwich layer, finally PET non-woven fabrics is layered on above PE film.The above-mentioned sheet material sandwich layer with sandwich structure laid is sent in baking oven and cures plasticizing, melt impregnation at 200 DEG C, then by continuous print hot pressing compound (roller temperature 180 DEG C), through sufficient cooling and shaping (roller temperature 50 DEG C), obtain finished product by size deburring.
The laminate of preparation, test performance is as following table:
| Performance | Testing standard | Numerical value |
| Surface density (g*m -2） | -- | 700-2100 |
| Hot strength (MPa) | GB/T1004.4-2006 | 40-135 |
| Bending strength (/MPa) | GB/T9431-2000 | 60-145 |
| Impact strength (KJ*m -2） | GB/T1843-1996 | 20-100 |
| Thermal conductivity factor (W/m*K) | GB/T 8722-2008 | 0.027-0.048 |
| Heat distortion temperature (DEG C) | GB/T 1634.2 | 123-146 |
As can be seen from form above, the laminate that the present invention obtains, owing to producing a lot of fine cell in sandwich layer expansion recompression process, thus thermal conductivity factor is low, and foam structure also makes it have good sound absorption properties simultaneously.The nondirectional glass fibre in intermediate layer makes material have the feature of high rigidity and low weight per unit area with the orientation glass fibre (corresponding pulling force and pressure direction) that has of superficial layer simultaneously, thus surface density is lower and impact strength is very high, has good resistance to impact.The instructions for use of the top load such as automobile, steamer protecting component can be met, there is wide application prospect.
Claims (1)
1. a production method for Light laminated board, is characterized in that this laminate is made up of modified polypropene sheet material, non-woven fabrics sandwich layer, polyethylene film and PETG non-woven fabrics; Specifically produce according to following step: non-woven fabrics sandwich layer is laid on modified polypropene sheet material, and then spread polyethylene film on non-woven fabrics sandwich layer, finally PETG non-woven fabrics is layered on above polyethylene film; Again structural panel is cured plasticizing through 140-220 DEG C, then hot-forming at 160-240 DEG C, finally by the pressure roller cooling of roller temperature 40-60 DEG C, prepare Light laminated board;
The preparation method of wherein said non-woven fabrics sandwich layer, carry out according to following step: adopt combined fiberglass and polypropylene fibre blended, obtain through shredding, combing, lapping, acupuncture, shaping acupuncture, obtained non-woven fabrics core layer thickness 2-6mm; Wherein combined fiberglass is made up of the glass fibre of different length, and combined fiberglass length is 10-100mm, and addition is the 10-60wt% of polypropylene fibre, better can play 3D skeleton effect in non-woven fabrics sandwich layer;
The preparation method of wherein said non-woven fabrics sandwich layer, wherein acupuncture is one or more compositions of general acupuncture, fork-shaped pricker, side jag pricker;
The preparation method of described non-woven fabrics sandwich layer, described glass fibre is made up of one or more of alkali-free glass fibre, high-modulus glass fiber, refractory glass fibre and high-strength glass fibre;
Wherein said modified polypropene sheet material, be blended obtained by adding polypropylene grafted maleic anhydride in one or both blends in COPP and HOPP, its surface density is 100-500 gram/m;
The surface density of wherein said polyethylene film is 30-60 gram/m;
The surface density of described PETG non-woven fabrics is 100-300 gram/m.
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| CN201310072931.8A CN103171235B (en) | 2013-03-07 | 2013-03-07 | The production method of the inflatable Light laminated board of a kind of sandwich layer |
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| CN201310072931.8A CN103171235B (en) | 2013-03-07 | 2013-03-07 | The production method of the inflatable Light laminated board of a kind of sandwich layer |
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| CN103171235B true CN103171235B (en) | 2016-01-27 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104553157B (en) * | 2013-10-16 | 2018-06-15 | 辽宁辽杰科技有限公司 | A kind of composite laminate and preparation method thereof |
| CN103738046A (en) * | 2013-12-02 | 2014-04-23 | 合肥杰迈特汽车新材料有限公司 | Processing method for light GMT sheet material |
| CN108162546A (en) * | 2017-12-11 | 2018-06-15 | 浙江华江科技股份有限公司 | A kind of automobile-used light-high-strength glass fiber reinforced polypropylene composite board |
| CN109823012A (en) * | 2018-12-29 | 2019-05-31 | 浙江华江科技股份有限公司 | Ultralight high sound-absorbing GMT enhancing PU Thermoplastic Automotive interior decorative composite board of one kind and preparation method thereof |
| CN110154936A (en) * | 2019-06-25 | 2019-08-23 | 常熟市协诚无纺制品有限公司 | A kind of manufacture craft of automobile-used bottom backplate |
| CN111300584A (en) * | 2019-11-29 | 2020-06-19 | 刘贤军 | Preparation method of plant fiber board |
| CN113306241B (en) * | 2021-06-11 | 2023-04-07 | 福建凯基高分子材料股份有限公司 | Preparation method of non-woven fabric for laminating |
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|---|---|---|---|---|
| WO2001016214A2 (en) * | 1999-09-01 | 2001-03-08 | Harodite Industries, Inc. | Chopped fiberglass laminate for automotive headliners and method of fabrication |
| US6649547B1 (en) * | 2000-08-31 | 2003-11-18 | Kimberly-Clark Worldwide, Inc. | Integrated nonwoven laminate material |
| CN102303430A (en) * | 2011-06-14 | 2012-01-04 | 宁波市阳光汽车配件有限公司 | Method for preparing glass fiber and reinforced polypropylene fiber composite material |
| CN102504426A (en) * | 2011-10-26 | 2012-06-20 | 重庆巨翁塑料制造有限公司 | Foamed polypropylene composite board and preparation method thereof |
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2013
- 2013-03-07 CN CN201310072931.8A patent/CN103171235B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016214A2 (en) * | 1999-09-01 | 2001-03-08 | Harodite Industries, Inc. | Chopped fiberglass laminate for automotive headliners and method of fabrication |
| US6649547B1 (en) * | 2000-08-31 | 2003-11-18 | Kimberly-Clark Worldwide, Inc. | Integrated nonwoven laminate material |
| CN102303430A (en) * | 2011-06-14 | 2012-01-04 | 宁波市阳光汽车配件有限公司 | Method for preparing glass fiber and reinforced polypropylene fiber composite material |
| CN102504426A (en) * | 2011-10-26 | 2012-06-20 | 重庆巨翁塑料制造有限公司 | Foamed polypropylene composite board and preparation method thereof |
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