CN101628498A - Method for producing polyurethane plate for automobile ceiling - Google Patents
Method for producing polyurethane plate for automobile ceiling Download PDFInfo
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- CN101628498A CN101628498A CN200910102121A CN200910102121A CN101628498A CN 101628498 A CN101628498 A CN 101628498A CN 200910102121 A CN200910102121 A CN 200910102121A CN 200910102121 A CN200910102121 A CN 200910102121A CN 101628498 A CN101628498 A CN 101628498A
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Abstract
The invention discloses a method for producing a polyurethane plate for an automobile ceiling, which comprises the following steps: flatly laying non-woven fabrics on a caterpillar belt of a compound machine; sequentially scattering short-cutting glass fibre and hot-melting adhesive powder on the non-woven fabrics; then melting and compounding at 160-250 DEG C at the pressure of 0.2-1MPa, cooling and rolling to obtain an adhesive glass fabric; sequentially decoiling, stacking and flatly laying the adhesive glass fabric and a bonding film on a working platform of a compound production line from bottom to top and placing a polyurethane rigid foam plate; sequentially scattering short-cutting glass fiber and hot-melting adhesive powder on the polyurethane rigid foam plate; flatly laying the hot-melting adhesive film and heating to 160-250 DEG C by a heating plate of the compound machine; carrying out hot-press compounding at the pressure of 0.2-1MPa and cooling to obtain a polyurethane multilayer composite plate. The invention has simple production process and stable product quality and solves the problem of easy delamination of the polyurethane plate produced by the prior one-step method.
Description
Technical field
The present invention relates to a kind of production method of polyurethane plate for automobile ceiling, belong to the composite machining technology.
Background technology
Polyurethane plate for automobile ceiling is the roof interior trim composite plate that auto industry is used, and is the main product in present domestic roof market.Orthodox car inner decorative ceiling, its framework material mainly use cardboard and EPS foaming plate, its manufacturing process complexity, and the product of production is yielding, is replaced by multilayer composite board of polyurethane gradually.Compare with traditional material, characteristics such as the multilayer composite board of polyurethane roof has sound-absorbing, heat insulation, in light weight, easy installation, have no irritating odor not only become the standard configuration of car roof, also are applied to pick up, little, heavy field such as card.
The production method about polyurethane plate of current announcement mainly contains following two kinds:
(1) automobile ceiling and the production technology of being mentioned among Chinese patent CN101088742 and the Chinese patent CN101259773A thereof, it is that nonwoven is unreeled lay to the workbench of composite production line that this method is produced multilayer composite board of polyurethane, on nonwoven, sow short glass fiber and solids hot melt adhesive successively, place hard polyurethane foam plate (being called for short the PU plate) then in the above, on the PU plate, sow short glass fiber and solids hot melt adhesive more successively, heating plate through compounding machine is heated to 150～260 ℃, it is compound to carry out roll-in under the pressure of 0.4～0.6MPa, and cooled composite plate is multilayer composite board of polyurethane.Though this production technology is to produce the many composite plates of polyurethane by " one-step method ",, cause the easy delamination of product nonwoven cloth cover owing to the bonding force of hot-melt adhesive powder used in producing and polyurethane is poor.
(2) method for preparing multilayer composite board of polyurethane is: at first the PU plate is placed on the conveyer belt, sows glass fibre, solids hot melt adhesive in the one side of PU plate then,, cooling compound through hot pressing obtains semi-finished product; Secondly, nonwoven is unreeled lay to the workbench of composite production line, place above-mentioned semi-finished product on nonwoven, sow solids hot melt adhesive and glass fibre at the another side of PU plate then,, cooling compound through hot pressing, clipping edge promptly get multilayer composite board of polyurethane.The shortcoming of this method is the production process complexity, need to the PU plate carry out twice compound; Because PU is the non-conductor of heat, must improve temperature and satisfy processing request, twice compound working strength of workers that increased, and cause very big energy loss.
Summary of the invention
At the deficiency of aforementioned production method, it is low to the purpose of this invention is to provide a kind of power consumption, the production method of the polyurethane plate for automobile ceiling that production efficiency is high.
The production method of polyurethane plate for automobile ceiling of the present invention, step is as follows:
1) nonwoven that tiles on the crawler belt of compounding machine is sowed short glass fiber, hot-melt adhesive powder in the above successively, and then at 160～250 ℃, it is compound to carry out melting under the pressure of 0.2～1MPa, and cooling, rolling obtain the glue glass cloth;
2) on the workbench of composite production line, unreel successively from bottom to top, stack, tile glue glass cloth, bonding film, place the hard polyurethane foam plate then, on the hard polyurethane foam plate, sow short glass fiber, hot-melt adhesive powder more successively, the tiling hot melt adhesive film, heating plate through compounding machine is heated to 160～250 ℃, it is compound to carry out hot pressing under the pressure of 0.2～1MPa, and cooling gets multilayer composite board of polyurethane.
Among the present invention, the glass fibre that said weak point is cut is that length is alkali-free glass fibre or the medium-alkali glass fibre of 10～100mm.
Said nonwoven is that grammes per square metre is 30～60g/m
2Spunlace non-woven cloth or heat prick nonwoven.
Said hot-melt adhesive powder is that melt index is that 18 ± 2g/10min, particle diameter are the high-density polyethylene powder of 30～200 μ m.
Said bonding film is modified poly ethylene, ethylene-vinyl acetate copolymer, ethene improved-acetate ethylene copolymer, ethylene-acrylic acid copolymer, ethene improved-acrylic copolymer, ethylene-methacrylic acid copolymer, ethene improved-methacrylic acid copolymer, nylon or modification of nylon.
Said hot melt adhesive film is one or more the mixture in polyethylene, polypropylene, ethylene-vinyl acetate copolymer, nylon and the ethylene-acrylic acid copolymer.
The inventive method has following beneficial effect: (1) the present invention has created a kind of production technology of glue glass cloth, the application of glue glass cloth has realized the once-combined moulding of polyurethane plate for automobile ceiling, successful solution existing " one-step method " the easy delamination of polyurethane plate of producing; (2) production technology has been simplified in one-step method composite molding, has reduced energy consumption.
The specific embodiment
Below further specify the present invention by example, these examples are further instruction, are not limitation ot it.
Embodiment 1
The production method of polyurethane plate for automobile ceiling, step is as follows:
1) 45g/m that on the crawler belt of compounding machine, tiles
2Spunlace non-woven cloth sows successively in the above that short to cut length be 30mm alkali-free glass fibre 210g/m
2, melt index is that 18 ± 2g/10min, particle diameter are 80～200 purpose high-density polyethylene powder 90g/m
2, then at 170 ℃, it is compound to carry out melting under the pressure of 0.1MPa, and cooling, rolling obtain the glue glass cloth;
2) on the workbench of composite production line, unreel successively from bottom to top, stack, tile above-mentioned glue glass cloth, 30g/m
2The bonding film of modified poly ethylene is placed the thick hard polyurethane foam plate of 6mm then, sows successively on the hard polyurethane foam plate that short to cut length be 30mm alkali-free glass fibre 170g/m again
2, melt index is that 18 ± 2g/10min, particle diameter are 80～200 purpose high-density polyethylene powder 190g/m
2, tiling 50g/m
2The polypropylene hot melt adhesive film, be heated to 190 ℃ through the heating plate of compounding machine, it is compound to carry out hot pressing under the pressure of 0.5MPa, cooling, polyurethane plate for automobile ceiling.
The performance indications of the polyurethane plate that this example makes are as follows:
| Project | Unit | Test value |
| Compressive strength | ??Kpa | ??160 |
| Bending strength | ??MPa | ??1.4 |
| Bending modulus | ??KPa | ??150 |
| Peeling force (vertical, horizontal) | ??N/30mm | ??4 |
| Plastics combustibility (horizontal firing method) | ??mm/min | ??≤100 |
| Thermal conductivity factor | ??W/m.K | ??0.036～0.040 |
| Size changing rate (laterally, vertically, 95 ℃/24h) | ??％ | ??≤0.5 |
Embodiment 2
The production method of polyurethane plate for automobile ceiling, step is as follows:
1) 60g/m that on the crawler belt of compounding machine, tiles
2Heat is pricked nonwoven, sows successively in the above that short to cut length be 20mm medium-alkali glass fibre 160g/m
2, melt index is that 18 ± 2g/10min, particle diameter are 80～200 purpose high-density polyethylene powder 90g/m
2, then at 180 ℃, it is compound to carry out melting under the pressure of 0.1MPa, and cooling, rolling obtain the glue glass cloth;
2) on the workbench of composite production line, unreel successively from bottom to top, stack, tile above-mentioned glue glass cloth, 30g/m
2The bonding film of modified poly ethylene is placed the thick hard polyurethane foam plate of 7mm then, sows successively on the hard polyurethane foam plate that short to cut length be 20mm medium-alkali glass fibre 150g/m again
2, melt index is that 18 ± 2g/10min particle diameter is 80～200 purpose high-density polyethylene powder 160g/m
2, tiling 50g/m
2The modified poly ethylene hot melt adhesive film, be heated to 190 ℃ through the heating plate of compounding machine, it is compound to carry out hot pressing under the pressure of 0.7MPa, cooling, polyurethane plate for automobile ceiling.
The polyurethane plate performance indications that this example makes are as follows:
| Project | Unit | Test value |
| Compressive strength | ??Kpa | ??155 |
| Bending strength | ??MPa | ??1.6 |
| Bending modulus | ??KPa | ??170 |
| Peeling force (vertical, horizontal) | ??N/30mm | ??4.2 |
| Plastics combustibility (horizontal firing method) | ??mm/min | ??≤100 |
| Thermal conductivity factor | ??W/m.K | ??0.036～0.040 |
| Size changing rate (laterally, vertically, 95 ℃/24h) | ??％ | ??≤0.5 |
Claims (6)
1. the production method of a polyurethane plate for automobile ceiling is characterized in that step is as follows:
1) nonwoven that tiles on the crawler belt of compounding machine is sowed short glass fiber, hot-melt adhesive powder in the above successively, and then at 160～250 ℃, it is compound to carry out melting under the pressure of 0.2～1MPa, and cooling, rolling obtain the glue glass cloth;
2) on the workbench of composite production line, unreel successively from bottom to top, stack, tile glue glass cloth, bonding film, place the hard polyurethane foam plate then, on the hard polyurethane foam plate, sow short glass fiber, hot-melt adhesive powder more successively, the tiling hot melt adhesive film, heating plate through compounding machine is heated to 160～250 ℃, it is compound to carry out hot pressing under the pressure of 0.2～1MPa, and cooling gets multilayer composite board of polyurethane.
2. the production method of polyurethane plate for automobile ceiling according to claim 1 is characterized in that the glass fibre that said weak point is cut is that length is alkali-free glass fibre or the medium-alkali glass fibre of 10～100mm.
3. the production method of polyurethane plate for automobile ceiling according to claim 1 is characterized in that said nonwoven is that grammes per square metre is 30～60g/m
2Spunlace non-woven cloth or heat prick nonwoven.
4. the production method of polyurethane plate for automobile ceiling according to claim 1 is characterized in that said hot-melt adhesive powder is that melt index is that 18 ± 2g/10min, particle diameter are the high-density polyethylene powder of 30～200 μ m.
5. the production method of polyurethane plate for automobile ceiling according to claim 1 is characterized in that said bonding film is modified poly ethylene, ethylene-vinyl acetate copolymer, ethene improved-acetate ethylene copolymer, ethylene-acrylic acid copolymer, ethene improved-acrylic copolymer, ethylene-methacrylic acid copolymer, ethene improved-methacrylic acid copolymer, nylon or modification of nylon.
6. the production method of polyurethane plate for automobile ceiling according to claim 1 is characterized in that said hot melt adhesive film is one or more the mixture in polyethylene, polypropylene, ethylene-vinyl acetate copolymer, nylon and the ethylene-acrylic acid copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102121A CN101628498A (en) | 2009-08-13 | 2009-08-13 | Method for producing polyurethane plate for automobile ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102121A CN101628498A (en) | 2009-08-13 | 2009-08-13 | Method for producing polyurethane plate for automobile ceiling |
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| Publication Number | Publication Date |
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| CN101628498A true CN101628498A (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910102121A Pending CN101628498A (en) | 2009-08-13 | 2009-08-13 | Method for producing polyurethane plate for automobile ceiling |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019741A (en) * | 2010-08-09 | 2011-04-20 | 无锡吉兴汽车声学部件科技有限公司 | Method for carrying out scale production on canopy of upscale sedan |
| CN102501553A (en) * | 2011-09-29 | 2012-06-20 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | Method for producing polyurethane composite board for automobile ceiling |
| CN102514307A (en) * | 2011-12-05 | 2012-06-27 | 烟台正海汽车内饰件有限公司 | Sandwich base material for vehicle ceiling and production method for sandwich base material |
| CN102742966A (en) * | 2012-07-04 | 2012-10-24 | 茂泰(福建)鞋材有限公司 | Novel sole |
| CN102991026A (en) * | 2012-09-30 | 2013-03-27 | 浙江联洋复合材料有限公司 | Adhesive non-woven fabric for car roof and production method thereof |
| CN103434253A (en) * | 2013-08-22 | 2013-12-11 | 烟台正海汽车内饰件有限公司 | Production method of low-gram-weight high-intensity automobile inner trim ceiling |
| CN105291543A (en) * | 2015-12-01 | 2016-02-03 | 重庆三易塑胶制品有限公司 | Processing method of composite foamed plastic and hot melting compound equipment thereof |
| CN106042529A (en) * | 2016-06-14 | 2016-10-26 | 芜湖正海汽车内饰件有限公司 | Method of processing polyurethane composite plate |
| CN109517366A (en) * | 2018-10-27 | 2019-03-26 | 天津华翔汽车顶棚系统有限公司 | Roof of the vehicle and its manufacturing method |
-
2009
- 2009-08-13 CN CN200910102121A patent/CN101628498A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019741B (en) * | 2010-08-09 | 2013-01-16 | 无锡吉兴汽车声学部件科技有限公司 | Method for carrying out scale production on canopy of upscale sedan |
| CN102019741A (en) * | 2010-08-09 | 2011-04-20 | 无锡吉兴汽车声学部件科技有限公司 | Method for carrying out scale production on canopy of upscale sedan |
| CN102501553A (en) * | 2011-09-29 | 2012-06-20 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | Method for producing polyurethane composite board for automobile ceiling |
| CN102501553B (en) * | 2011-09-29 | 2016-04-20 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | For the production method of the Rigid foam polyurethane of automobile ceiling |
| CN102514307A (en) * | 2011-12-05 | 2012-06-27 | 烟台正海汽车内饰件有限公司 | Sandwich base material for vehicle ceiling and production method for sandwich base material |
| CN102742966B (en) * | 2012-07-04 | 2015-05-20 | 茂泰(福建)鞋材有限公司 | Novel sole |
| CN102742966A (en) * | 2012-07-04 | 2012-10-24 | 茂泰(福建)鞋材有限公司 | Novel sole |
| CN102991026A (en) * | 2012-09-30 | 2013-03-27 | 浙江联洋复合材料有限公司 | Adhesive non-woven fabric for car roof and production method thereof |
| CN103434253A (en) * | 2013-08-22 | 2013-12-11 | 烟台正海汽车内饰件有限公司 | Production method of low-gram-weight high-intensity automobile inner trim ceiling |
| CN103434253B (en) * | 2013-08-22 | 2015-04-08 | 烟台正海汽车内饰件有限公司 | Production method of low-gram-weight high-intensity automobile inner trim ceiling |
| CN105291543A (en) * | 2015-12-01 | 2016-02-03 | 重庆三易塑胶制品有限公司 | Processing method of composite foamed plastic and hot melting compound equipment thereof |
| CN106042529A (en) * | 2016-06-14 | 2016-10-26 | 芜湖正海汽车内饰件有限公司 | Method of processing polyurethane composite plate |
| CN109517366A (en) * | 2018-10-27 | 2019-03-26 | 天津华翔汽车顶棚系统有限公司 | Roof of the vehicle and its manufacturing method |
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Open date: 20100120 |