CN102423933A - Production method of polyurethane composite board for automobile roof - Google Patents
Production method of polyurethane composite board for automobile roof Download PDFInfo
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- CN102423933A CN102423933A CN2011102713936A CN201110271393A CN102423933A CN 102423933 A CN102423933 A CN 102423933A CN 2011102713936 A CN2011102713936 A CN 2011102713936A CN 201110271393 A CN201110271393 A CN 201110271393A CN 102423933 A CN102423933 A CN 102423933A
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- ethylene
- propylene copolymer
- glued membrane
- rigid foam
- foam polyurethane
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Abstract
A production method of a polyurethane composite board for an automobile roof comprises the following steps of: firstly, flatly laying non-woven fabric on a crawler belt of a compounding machine, placing a first ethylene-propylene copolymer film, hot-melting adhesive powder, glass fibers and a second ethylene-propylene copolymer film on the non-woven fabric in sequence and obtaining a bottom layer of the polyurethane composite board after the first ethylene-propylene copolymer film, the hot melting adhesive powder, the glass fibers and the second ethylene-propylene copolymer film are hot-pressed, compounded, cooled and wound by using the compounding machine; secondly, placing a third ethylene-propylene copolymer film, glass fibers and a fourth ethylene-propylene copolymer film in sequence from bottom to top and obtaining a surface layer of the polyurethane composite board after the third ethylene-propylene copolymer film, the glass fibers and the fourth ethylene-propylene copolymer film are hot-pressed, compounded, cooled and wound by using the compounding machine; and thirdly, placing the surface layer, a PU (polyurethane) board and the bottom layer in sequence from top to bottom, adjusting the interval of pressure rods to H plus or minus 0.3 through taking the thickness H of the compounded surface layer, PU board and bottom layer as a reference, then hot-pressing, compounding and cooling to obtain the polyurethane composite board. The invention has the beneficial effects that the polyurethane composite board prepared by adopting the method has strong rigidity; and the thickness and the weight of the composite board can be changed as required.
Description
Technical field
The present invention relates to a kind of production method of Rigid foam polyurethane, the Rigid foam polyurethane that adopts this method to produce is used for the top of automobile.
Background technology
The production method of present multilayer composite board of polyurethane mainly contains following two kinds:
(1) nonwoven is unreeled lay to the work of composite production line; On nonwoven, sow short glass fiber and solids hot melt adhesive successively; Place the PU plate then in the above; On the PU plate, sow short glass fiber and solids hot melt adhesive more successively, compound through heating plate heating the carrying out rod pressure of compounding machine, cooled composite plate is multilayer composite board of polyurethane.
(2) 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, on nonwoven, place above-mentioned semi-finished product, sow solids hot melt adhesive and glass fibre at the another side of PU plate then,, cooling compound through hot pressing, clipping edge promptly obtain Rigid foam polyurethane.
When adopting above-mentioned two kinds of methods to produce; Rubber powder is penetrated in the PU plate, could harden nonwoven, glass fibre and PU to synthesize an integral body, and the rigidity of sheet material also has only one like this; Support the easy top of collapsing of the Rigid foam polyurethane that adopts this sheet material to produce entirely by PU.And the employing aforementioned production method can not satisfy the requirement of multilayer composite board of polyurethane for thickness and weight.
Summary of the invention
The present invention has overcome deficiency of the prior art, provides a kind of rigidity strong, can change the production method of the automobile calash of weight and thickness with Rigid foam polyurethane.
A kind of automobile calash may further comprise the steps with the production method of Rigid foam polyurethane:
1) nonwoven that on the crawler belt of compounding machine, tiles; Place the first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, the second ethylene-propylene copolymer glued membrane in the above successively; Being heated to 180-200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound; Cooling, rolling obtains the bottom of Rigid foam polyurethane;
2) place the triethylene-propylene copolymer glued membrane, glass fibre, the 4th ethylene-propylene copolymer glued membrane from bottom to top successively, being heated to 180-200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, and rolling obtains the surface layer of Rigid foam polyurethane;
3) surface layer, PU plate, bottom are placed from top to bottom successively, the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H ± 0.3, and is compound 200-220 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
The present invention has replaced the hot-melt adhesive powder bonding with the PU plate with the ethylene-propylene copolymer glued membrane; With independent compound surface layer and the bottom of obtaining of PU plate material at opposite sides; Because surface layer, bottom and PU plate all have rigidity, again with surface layer, bottom and PU plate together compound after, the rigidity of composite plate improves.
The present invention is provided with hot-melt adhesive powder between ethylene-propylene copolymer glued membrane and glass fibre; Amount through regulating hot-melt adhesive powder can be produced the Rigid foam polyurethane that obtains required weight; Can obtain the Rigid foam polyurethane of different-thickness through the gap of adjustment pressure bar; Satisfy the requirement of Rigid foam polyurethane to weight and thickness, ethylene-propylene copolymer glued membrane grammes per square metre of the present invention all can be 50g/m
2, also can be 70g/m
2
As required; Can add facial mask at the outer surface of the surface layer of Rigid foam polyurethane, said facial mask is selected from a kind of in polyethylene glued membrane, modified poly ethylene glued membrane, polypropylene glued membrane, modified polypropene glued membrane, ethylene-acrylic acid copolymer glued membrane, the ethene improved-acrylic copolymer glued membrane.
The specific embodiment
Below further specify the present invention through embodiment, these examples are explanation just further, is not limitation ot it.
Embodiment 1
Automobile calash is with the production method of Rigid foam polyurethane, and step is following:
The nonwoven that on the crawler belt of compounding machine, tiles, placing grammes per square metre in the above successively is 50g/m
2The first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, grammes per square metre be 50g/m
2The second ethylene-propylene copolymer glued membrane, being heated to 180 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the bottom of Rigid foam polyurethane; Placing grammes per square metre from bottom to top successively is 50g/m
2The triethylene-propylene copolymer glued membrane, glass fibre, grammes per square metre be 50g/m
2The 4th ethylene-propylene copolymer glued membrane, being heated to 200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the surface layer of Rigid foam polyurethane; Surface layer, PU plate, bottom are placed from top to bottom successively, and the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H, and is compound 215 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
Embodiment 2
Automobile calash is with the production method of Rigid foam polyurethane, and step is following:
The nonwoven that on the crawler belt of compounding machine, tiles, placing grammes per square metre in the above successively is 70g/m
2The first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, grammes per square metre be 70g/m
2The second ethylene-propylene copolymer glued membrane, being heated to 200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the bottom of Rigid foam polyurethane; Placing grammes per square metre from bottom to top successively is 70g/m
2The triethylene-propylene copolymer glued membrane, glass fibre, hot-melt adhesive powder, grammes per square metre be 70g/m
2The 4th ethylene-propylene copolymer glued membrane, being heated to 180 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the surface layer of Rigid foam polyurethane; Surface layer, PU plate, bottom are placed from top to bottom successively, and the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H, and is compound 200 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
Embodiment 3
Automobile calash is with the production method of Rigid foam polyurethane, and step is following:
The nonwoven that on the crawler belt of compounding machine, tiles, placing grammes per square metre in the above successively is 70g/m
2The first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, grammes per square metre be 70g/m
2The second ethylene-propylene copolymer glued membrane, being heated to 190 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the bottom of Rigid foam polyurethane; Placing grammes per square metre from bottom to top successively is 70g/m
2The triethylene-propylene copolymer glued membrane, glass fibre, hot-melt adhesive powder, grammes per square metre be 70g/m
2The 4th ethylene-propylene copolymer glued membrane, polyethylene glued membrane, being heated to 185 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the surface layer of Rigid foam polyurethane; Surface layer, PU plate, bottom are placed from top to bottom successively, and the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H, and is compound 210 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
Embodiment 4
Automobile calash is with the production method of Rigid foam polyurethane, and step is following:
The nonwoven that on the crawler belt of compounding machine, tiles, placing grammes per square metre in the above successively is 50g/m
2The first ethylene-propylene copolymer glued membrane, glass fibre, grammes per square metre be 50g/m
2The second ethylene-propylene copolymer glued membrane, being heated to 185 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the bottom of Rigid foam polyurethane; Placing grammes per square metre from bottom to top successively is 50g/m
2The triethylene-propylene copolymer glued membrane, glass fibre, grammes per square metre be 50g/m
2The 4th ethylene-propylene copolymer glued membrane, modified polypropene glued membrane, being heated to 190 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the surface layer of Rigid foam polyurethane; Surface layer, PU plate, bottom are placed from top to bottom successively, and the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H, and is compound 220 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
Embodiment 5
Automobile calash is with the production method of Rigid foam polyurethane, and step is following:
The nonwoven that on the crawler belt of compounding machine, tiles, placing grammes per square metre in the above successively is 50g/m
2The first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, grammes per square metre be 50g/m
2The second ethylene-propylene copolymer glued membrane, being heated to 180 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the bottom of Rigid foam polyurethane; Placing grammes per square metre from bottom to top successively is 50g/m
2The triethylene-propylene copolymer glued membrane, glass fibre, grammes per square metre be 50g/m
2The 4th ethylene-propylene copolymer glued membrane, ethylene-acrylic acid copolymer glued membrane, being heated to 200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, rolling obtains the surface layer of Rigid foam polyurethane; Surface layer, PU plate, bottom are placed from top to bottom successively, and the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H, and is compound 215 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
Claims (5)
1. automobile calash is characterized in that comprising the steps: with the production method of Rigid foam polyurethane
1) nonwoven that on the crawler belt of compounding machine, tiles; Place the first ethylene-propylene copolymer glued membrane, hot-melt adhesive powder, glass fibre, the second ethylene-propylene copolymer glued membrane in the above successively; Being heated to 180-200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound; Cooling, rolling obtains the bottom of Rigid foam polyurethane;
2) place the triethylene-propylene copolymer glued membrane, glass fibre, the 4th ethylene-propylene copolymer glued membrane from bottom to top successively, being heated to 180-200 ℃ through the heating plate of compounding machine, to carry out hot pressing compound, cooling, and rolling obtains the surface layer of Rigid foam polyurethane;
3) surface layer, PU plate, bottom are placed from top to bottom successively, the thickness H with surface layer, PU plate, bottom after compound is a benchmark, and the gap of adjustment pressure bar is to H ± 0.3, and is compound 200-220 ℃ of following hot pressing, and cooling obtains Rigid foam polyurethane.
2. automobile calash according to claim 1 is with the production method of Rigid foam polyurethane, it is characterized in that being provided with the PUR bisque between glass fibre and the 4th ethylene-propylene copolymer glued membrane of said Rigid foam polyurethane surface layer.
3. automobile calash according to claim 1 and 2 is characterized in that with the production method of Rigid foam polyurethane the grammes per square metre of the first ethylene-propylene copolymer glued membrane, the second ethylene-propylene copolymer glued membrane, the triethylene-propylene copolymer glued membrane and the 4th ethylene-propylene copolymer glued membrane is 50g/m
2Or 70g/m
2
4. automobile calash according to claim 1 and 2 is characterized in that with the production method of Rigid foam polyurethane the outer surface of the 4th ethylene-propylene copolymer glued membrane of said surface layer is provided with facial mask.
5. automobile calash according to claim 4 is with the production method of Rigid foam polyurethane, it is characterized in that described facial mask is selected from a kind of in polyethylene glued membrane, modified poly ethylene glued membrane, polypropylene glued membrane, modified polypropene glued membrane, ethylene-acrylic acid copolymer glued membrane, the ethene improved-acrylic copolymer glued membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102713936A CN102423933A (en) | 2011-09-14 | 2011-09-14 | Production method of polyurethane composite board for automobile roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102713936A CN102423933A (en) | 2011-09-14 | 2011-09-14 | Production method of polyurethane composite board for automobile roof |
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| Publication Number | Publication Date |
|---|---|
| CN102423933A true CN102423933A (en) | 2012-04-25 |
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|---|---|---|---|
| CN2011102713936A Pending CN102423933A (en) | 2011-09-14 | 2011-09-14 | Production method of polyurethane composite board for automobile roof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619997A (en) * | 2015-12-30 | 2016-06-01 | 重庆市皓邦工业有限公司 | Little-odor and few-VOCs (volatile organic compounds) automotive paper honeycomb composite board and dry-method forming process thereof |
-
2011
- 2011-09-14 CN CN2011102713936A patent/CN102423933A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619997A (en) * | 2015-12-30 | 2016-06-01 | 重庆市皓邦工业有限公司 | Little-odor and few-VOCs (volatile organic compounds) automotive paper honeycomb composite board and dry-method forming process thereof |
| CN105619997B (en) * | 2015-12-30 | 2018-02-09 | 重庆市皓邦工业有限公司 | The low VOC of low smell automobile using honeycomb composite cardboard and its dry process for forming |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120425 Assignee: LIYANG CITY SHANHU INDUSTRY CO., LTD. Assignor: Automobile Decoration Material Branch, Liyang Shanhu Industrial Co., Ltd. Contract record no.: 2013320000020 Denomination of invention: Production method of polyurethane composite board for automobile roof License type: Exclusive License Record date: 20130122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |