CN202805845U - Light PU (polyurethane) composite board - Google Patents
Light PU (polyurethane) composite board Download PDFInfo
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- CN202805845U CN202805845U CN 201220374251 CN201220374251U CN202805845U CN 202805845 U CN202805845 U CN 202805845U CN 201220374251 CN201220374251 CN 201220374251 CN 201220374251 U CN201220374251 U CN 201220374251U CN 202805845 U CN202805845 U CN 202805845U
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Abstract
The utility model discloses a light PU (polyurethane) composite board which is of an integrally adhered composite layer structure. The composite layer structure sequentially comprises a non-woven fabric layer, a PU foaming layer and a first hot-rolled non-woven fabric layer, wherein the non-woven fabric layer is used for enhancing the tensile strength of products; and the non-woven fabric layer for enhancing the tensile strength of products and the PU foaming layer as well as the PU foaming layer and the first hot-rolled non-woven fabric layer are adhered by using an adhesive. According to the light PU composite board disclosed by the utility model, because phenolic resin is replaced with a PE (polyethylene) adhesive and cotton and hemp substances in semi-solidified felt materials are replaced with a PU foaming material, the light PU composite board has the characteristics of strong heat-insulating capability, small unit area, light weight, easiness for forming, high forming speed, health and environmental protection, and complies with the lightweight development trend of vehicles.
Description
Technical field
The utility model relates to a kind of PU composite, relates in particular to a kind of or lightweight PU composite plate that hood heat insulation heat insulation for enging cabin.
Background technology
Automobile engine nacelle thermal insulation board, hood thermal insulation board all are arranged in the automobile engine nacelle, are used for playing heat insulation noise elimination effect, so generally need to use material heat insulation and that sound-absorbing effect is good to make.Common thermal insulation board material is mainly semi-solid preparation felt material, mineral wool material on the market, in order to make it good fixed effect is arranged, and can add therein a certain amount of phenolic resins.But existing above-mentioned thermal insulation board material is deposited following deficiency:
(1) doping linen-cotton class material in the semi-solid preparation felt material, for a long time deposit the risk of existence being grown mould at wet environment, and the affiliation that adds of phenolic resins causes the semi-solid preparation felt material to produce under damp and hot weather or mix when inhomogeneous, and normal situation with top layer fabric strike-through affects product quality;
(2) contain asbestos component in the mineral wool material, and asbestos have been put into harmful substance, have banned use of;
(3) all can distribute in process of production a large amount of harmfulness volatile substances, the infringement operating personnel's is healthy;
(4) the product layers of material can't one-shot forming, layers of material need to be superposeed successively when mold pressing, has restricted the speed of production of product;
(5) weight per unit area is large after the formed product, and its grammes per square metre is 1000-1200g/ ㎡ (material thickness 20mm), does not meet the trend of automotive light weight technology development;
(6) owing to the adding of phenolic resins, material can distribute with pernicious gases such as formaldehyde when heating, and skin and mucosa is had spread effect, can cause the symptoms such as having a headache, dizzy, weak appears in human body.
Therefore, along with the domestic consumer environment inside car is required and the international market to the restriction of automobile product rules, semi-solid preparation felt material, mineral wool material are to be abandoned by automotive upholstery manufacturer gradually.
The utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of lightweight PU composite plate, it has, and heat-insulating capability is strong, unit are is little, quality is light, be convenient to moulding, shaping speed is fast, the characteristics of health environment-friendly, meets the trend of vehicle lightweight development.
For achieving the above object, the technical scheme that adopts of the utility model is as follows:
A kind of lightweight PU composite plate, for being bonded in the lamination layer structure of one, this lamination layer structure comprises successively for the nonwoven layer, PU foaming layer and the first fabric hot rolled nonwoven fabrics layer that strengthen the product hot strength; Between the described nonwoven layer and PU foaming layer for strengthening the product hot strength, between PU foaming layer and the first fabric hot rolled nonwoven fabrics layer all through polymer adhesive in one.
As to a kind of mode of the present utility model, described nonwoven layer for strengthening the product hot strength is the acupuncture nonwoven layer of cloth.
As to another kind of mode of the present utility model, described nonwoven layer for strengthening the product hot strength is the second fabric hot rolled nonwoven fabrics layer; Described lamination layer structure also is included in the outer aluminum foil web scrim layer that covers that spreads of the second fabric hot rolled nonwoven fabrics layer, between the second fabric hot rolled nonwoven fabrics layer and aluminum foil web scrim layer through polymer adhesive in one.
As restriction of the present utility model, described adhesive is PE glue, and corresponding two-layer carrying out is the PE adhesive film after bonding.
Owing to adopted technique scheme, the utility model compared with prior art, obtained technological progress is: 1. the quality of PU foaming layer is light, it contains the expanded material of porous, pore is many and density is little, and sound and heat are had very strong absorbability;
2. fabric hot rolled nonwoven fabrics layer and acupuncture nonwoven layer of cloth play the decorative appearance effect, and have strengthened to a certain extent the hot strength of product;
3. the aluminum foil web scrim layer plays the energy reflection, intercepts the effect of sound and heat conduction, and includes the effect that glass fibre plays the enhancing product strength;
4. substitute phenolic resins with PE glue, with the linen-cotton class material in the PU expanded material replacement semi-solid preparation felt material, not only eliminated the drawback of top layer fabric strike-through, and eliminated distributing of poisonous and harmful material in the production process, protection operating personnel and driver and crew's is healthy;
Need not each stacked adding when 5. composite plate is made, directly straight forming on mould has reduced productive temp.
In sum, the utlity model has that heat-insulating capability is strong, unit are is little, quality is light, be convenient to moulding, shaping speed is fast, the characteristics of health environment-friendly, meets vehicle lightweight development trend.
It is heat insulation or Engine Casing is heat insulation that the utility model is applicable to automotive engine compartment.
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is done further to describe in detail.
Fig. 1 is the utility model embodiment 1 cross-sectional view;
Fig. 2 is the utility model embodiment 2 cross-sectional view.
Among the figure: 1, acupuncture nonwoven layer of cloth; 2, PE adhesive film; 3, PU foaming layer; 4, the first fabric hot rolled nonwoven fabrics layer; 5, aluminum foil web scrim layer; 6, the second fabric hot rolled nonwoven fabrics layer.
The specific embodiment
Embodiment 1
A kind of lightweight PU composite plate, it is heat insulation to be applicable to the automobile engine hood, and for being bonded in the lamination layer structure of one, as shown in Figure 1, this lamination layer structure is followed successively by from outside to inside: acupuncture nonwoven layer of cloth 1, PU foaming layer 3 and the first fabric hot rolled nonwoven fabrics layer 4.
Between acupuncture nonwoven layer of cloth 1 and the PU foaming layer 3, connect by PE is gluing between PU foaming layer 3 and the first fabric hot rolled nonwoven fabrics layer 4.
PE glue is with the corresponding two-layer bonding rear formation PE adhesive film 2 that carries out.
PE glue in the present embodiment also can be replaced by EVA glue.
In acupuncture nonwoven layer of cloth 1 in the present embodiment, the first fabric hot rolled nonwoven fabrics layer 4 one of at least, can substitute with the spunlace non-woven cloth layer.
Embodiment 2
A kind of lightweight PU composite plate, it is heat insulation to be applicable to automotive engine compartment, for being bonded in the lamination layer structure of one, as shown in Figure 2, this lamination layer structure is followed successively by from outside to inside: aluminum foil web scrim layer 5, the second fabric hot rolled nonwoven fabrics layer 6, PU foaming layer 3 and the first fabric hot rolled nonwoven fabrics layer 4.
Between aluminum foil web scrim layer 5 and the second fabric hot rolled nonwoven fabrics layer 6, between the second fabric hot rolled nonwoven fabrics layer 6 and the PU foaming layer 3, connect by PE is gluing between PU foaming layer 3 and the first fabric hot rolled nonwoven fabrics layer 4.
PE glue is with the corresponding two-layer bonding rear formation PE adhesive film 2 that carries out.
PE glue in the present embodiment also can be replaced by EVA glue.
In the second fabric hot rolled nonwoven fabrics layer 6 of present embodiment, the first fabric hot rolled nonwoven fabrics layer 4 one of at least, can substitute with the spunlace non-woven cloth layer.
Claims (4)
1. a lightweight PU composite plate for being bonded in the lamination layer structure of one, is characterized in that this lamination layer structure comprises successively: be used for strengthening nonwoven layer, the PU foaming layer (3) and the first fabric hot rolled nonwoven fabrics layer (4) of product hot strength; Between the described nonwoven layer and PU foaming layer (3) for strengthening the product hot strength, between PU foaming layer (3) and the first fabric hot rolled nonwoven fabrics layer (4) all through polymer adhesive in one.
2. lightweight PU composite plate according to claim 1 is characterized in that: described nonwoven layer for strengthening the product hot strength is acupuncture nonwoven layer of cloth (1).
3. lightweight PU composite plate according to claim 1 is characterized in that: described nonwoven layer for strengthening the product hot strength is the second fabric hot rolled nonwoven fabrics layer (6);
Described lamination layer structure also is included in the outer aluminum foil web scrim layer (5) that covers that spreads of the second fabric hot rolled nonwoven fabrics layer (6), between the second fabric hot rolled nonwoven fabrics layer (6) and aluminum foil web scrim layer (5) through polymer adhesive in one.
4. each described lightweight PU composite plate according to claim 1-3, it is characterized in that: described adhesive is PE glue, is PE adhesive film (2) in corresponding two interlayers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374251 CN202805845U (en) | 2012-07-31 | 2012-07-31 | Light PU (polyurethane) composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374251 CN202805845U (en) | 2012-07-31 | 2012-07-31 | Light PU (polyurethane) composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202805845U true CN202805845U (en) | 2013-03-20 |
Family
ID=47864783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374251 Expired - Lifetime CN202805845U (en) | 2012-07-31 | 2012-07-31 | Light PU (polyurethane) composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202805845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318546A (en) * | 2018-09-19 | 2019-02-12 | 张家港市圣达汽车内饰材料有限公司 | A kind of numb felt filled board in automobile top surface |
-
2012
- 2012-07-31 CN CN 201220374251 patent/CN202805845U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318546A (en) * | 2018-09-19 | 2019-02-12 | 张家港市圣达汽车内饰材料有限公司 | A kind of numb felt filled board in automobile top surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |