CN212332061U

CN212332061U - Novel automobile-used carpet of foaming heavy weight puigging structure

Info

Publication number: CN212332061U
Application number: CN202020767872.1U
Authority: CN
Inventors: 赵宗慧; 郑冠崔; 谭曾凯; 王险峰; 张俊
Original assignee: Guangzhou Linjun Co ltd
Current assignee: Guangzhou Linjun Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-12
Anticipated expiration: 2030-05-11

Abstract

The utility model provides a novel automobile-used carpet of heavy puigging structure of foaming, includes from top to bottom composite's epidermal layer, buffering sound absorbing layer, puigging and supporting layer in proper order, and wherein, the epidermal layer is made for the PET material, and buffering sound absorbing layer is made for PET/L-PET material, and the puigging is made for the propenyl elastomer of foaming, and the supporting layer is made for PET or PU expanded material. The utility model discloses there is very big improvement in the aspect of smell, VOC, has the effectual advantage that the lightweight gives sound insulation.

Description

Novel automobile-used carpet of foaming heavy weight puigging structure

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a novel automobile-used carpet of foaming heavy weight puigging structure.

Background

The noise in the automobile is a key performance index of the automobile, and besides the influences of an engine, suspension, airtightness in the automobile, sheet metal thickness and the like, the acoustic characteristic of the material of the interior trim part of the automobile plays a key role. At present, requirements on sound insulation performance of noise outside a vehicle are more emphasized, so that the sound insulation performance effect of a floor carpet in automobile interior decoration is particularly important, the sound insulation performance of the automobile floor carpet is mainly based on a heavy sound insulation layer with a heavy carpet at present, and the traditional heavy sound insulation layer is formed by a plurality of large materials such as elastomers, fillers, polyethylene, additives and the like. However, the conventional carpet improves the sound insulation effect at present, and the sound insulation effect is improved mainly by improving the weight and the thickness of the heavy sound insulation layer, but the weight of the vehicle is increased by the improvement, so that the oil consumption is influenced.

The automobile sound insulation carpet is mainly installed at the lower part of an automobile cab, namely a pedal position of a person, and the product needs to meet the product requirements of sound absorption, sound insulation, appearance commodity and the like. However, as the concern of the country and the public on smell and noise in the vehicle increases, the requirements of the host factory on the vehicle carpet become higher and higher.

The existing carpet structure is: the combination of the skin layer (PET material) with the heavy sound insulation layer (EPDM, EVA material) and the support layer (cotton pad, PU foam, etc.), the disadvantages of this solution are mainly: the whole quality is heavier, the odor and the VOC performance are poor.

The reasons for the above disadvantages are mainly:

1. since the density of the conventional heavy soundproof layer is 1.8g/cm (i.e. the material thickness is 1800g/m at t1 mm), it is necessary to increase the thickness of the heavy soundproof layer of the carpet in order to improve the soundproof performance of the vehicle, but the increase in thickness and the increase in weight are also necessary.

2. The conventional heavy soundproof layer mainly uses an elastomer (ethylene-vinyl acetate) as a material, and the odor property of the conventional heavy soundproof layer is poor because the acetic acid functional group in the ethylene-vinyl acetate copolymer causes odor and VOC.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above problem that prior art exists, provide a novel automobile-used carpet of foaming heavy weight puigging structure.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a novel automobile-used carpet of heavy puigging foam structure of foaming, includes from top to bottom composite's epidermal layer and the heavy puigging of foaming in proper order, the epidermal layer is made for the PET material, and the heavy puigging of foaming is made for the propenyl elastomer of foaming.

Preferably, the bottom of the foamed heavy sound-proof layer is provided with a supporting layer, and the supporting layer is made of PET or PU foaming materials.

Further, a buffering sound absorption layer is arranged between the surface layer and the foamed heavy sound insulation layer, and the buffering sound absorption layer is made of PET/L-PET materials.

Preferably, the carpet for the vehicle with the novel foaming heavy sound-proof layer foaming structure is characterized in that the surface layer, the buffering sound-absorbing layer, the foaming heavy sound-proof layer and the supporting layer are combined in a hot-pressing or integrated foaming forming mode.

Further, the thickness of the skin layer is 1mm-2 mm; the thickness of the buffering sound absorption layer is 0.5mm-3mm, the thickness of the foaming heavy sound insulation layer is 0.7mm-3mm, and the thickness of the supporting layer is 10mm-25 mm.

Preferably, the density of the foamed heavy acoustical layer is from 1.2g/cm to thin gauge.

Compared with the prior art, the utility model discloses mainly there are following several advantages:

1. compared with the traditional heavy sound-proof part, the weight of the sound-proof part is reduced by about 30%, and the lightweight effect of reducing the density of the traditional heavy sound-proof layer from 1.8g/cm to 1.2g/cm in a thin year is realized due to the fact that the foaming agent is added to the heavy sound-proof layer.

2. The thickness of the sound insulation layer is increased by 0.5mm-1mm compared with the traditional heavy sound insulation layer under the same gram weight. Therefore, under the condition that the gram weight of the sound insulation layer is the same, the foamed heavy sound insulation layer can be thicker in thickness, and the sound insulation performance of the product is improved.

3. The foaming structure of the foaming heavy sound-proof layer is mainly prepared by taking an allyl elastomer as a main material and simultaneously adding a foaming agent, calcium carbonate and other related auxiliary agents through a heating extrusion foaming process. Since the propylene-based elastomer itself does not contain materials with a large odor such as ethylene-vinyl acetate, the pungent odor is reduced compared to the conventional heavy-weight soundproof because the materials are greatly improved in odor and VOC.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of embodiment 2 of the present invention;

fig. 3 is a schematic structural view of embodiment 3 of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Embodiment 1

Referring to the attached drawing 1, a novel vehicle carpet with a foaming structure of a foaming heavy sound-proof layer comprises a surface layer 1 and a foaming heavy sound-proof layer 2 which are sequentially compounded from top to bottom, wherein the surface layer 1 is made of a PET material, the foaming heavy sound-proof layer 2 is made of an E-PBE (foaming sound-proof layer) material, deformation of the vehicle carpet and reduction of the service life are avoided, and the surface layer and the foaming heavy sound-proof layer are combined in a hot-press forming mode.

Example 2

Referring to the attached drawing 2, a novel automobile carpet of foaming heavy weight puigging foam structure, including epidermal layer 1, foaming heavy weight puigging 2 and supporting layer 3 that from top to bottom are compound in proper order, wherein, epidermal layer 1 makes for the PET material, foaming heavy weight puigging 2 makes for E-PBE (foaming puigging) material, supporting layer 3 mainly plays the supporting role, avoid automobile carpet's deformation and life's reduction, can adopt PET or PU foaming material to make, also can adopt materials such as ordinary cotton pad to make, wherein, epidermal layer, foaming heavy weight puigging and supporting layer combine through hot pressing or integrated into one piece foaming's mode.

Example 3

Referring to the attached drawing 3, a novel vehicle carpet with a foaming structure of a foaming heavy sound-proof layer comprises a surface layer 1, a buffering sound-absorbing layer 2, a foaming heavy sound-proof layer 3 and a supporting layer 4 which are sequentially compounded from top to bottom, wherein the surface layer 1 is made of a PET material, the buffering sound-absorbing layer 2 is made of a PET/L-PET material, the foaming heavy sound-proof layer 3 is made of an E-PBE (foaming sound-proof layer) material, the supporting layer 4 mainly plays a supporting role, deformation of the vehicle carpet and reduction of service life are avoided, the vehicle carpet can be made of a PET or PU foaming material, and can also be made of materials such as a common cotton pad, wherein the surface layer, the buffering sound-absorbing layer, the foaming heavy sound-proof layer and the supporting layer are combined in a hot pressing or integrated foaming molding.

The thickness of the surface layer 1 is 1mm-2 mm; the thickness of the buffering sound absorption layer 2 is 0.5mm-3mm, the thickness of the foaming heavy sound insulation layer 3 is 0.7mm-3mm, and the thickness of the supporting layer 4 is 10mm-25 mm.

The foaming structure of the foaming heavy sound insulation layer 4 mainly uses a propylene-based elastomer as a main material, and the propylene-based elastomer material does not contain ethylene-vinyl acetate, so that the odor and VOC are greatly improved, meanwhile, a physical foaming agent, calcium carbonate, a coupling agent and other related auxiliary agents are added into the formula, and the foaming agent begins to expand and generate a large amount of dense air holes when reaching the activation temperature in the high-temperature extrusion process, so that a large amount of uniform air bubbles exist in the sound insulation part, the gram weight of the material is reduced, and the thickness of the material is increased. Because the addition of foamer can effectually descend the density of traditional heavy matter puigging to 1.2g/cm to lightweight effect from 1.8g/cm to 1.2g/cm, and thickness ratio tradition heavy matter puigging has improved 0.5mm-1mm under the same grammes per square metre, the effectual acoustic performance that improves the product, in specific production process, the utility model discloses a mixture of ingredients, puigging foaming, extrude, cooling, surface fabric and foaming type heavy matter sound insulation material are compound, decide to scale, heating shaping or integrative foaming shaping, blanking can.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a novel automobile-used carpet of heavy puigging structure of foaming which characterized in that, includes from top to bottom composite's epidermal layer and the heavy puigging of foaming in proper order, the epidermal layer is made for the PET material, and the heavy puigging of foaming is made for the propenyl elastomer of foaming.

2. The carpet for vehicle of claim 1, wherein the bottom of the foamed heavy sound-proof layer is provided with a support layer made of PET or PU foam.

3. The carpet for vehicle of claim 2, wherein a buffering sound absorption layer is disposed between the surface layer and the foamed heavy sound insulation layer, and the buffering sound absorption layer is made of PET/L-PET material.

4. The carpet for vehicle of claim 3, wherein the skin layer, the buffering sound absorption layer, the foamed heavy sound insulation layer and the supporting layer are combined by hot pressing or integral foaming.

5. The carpet for vehicle of new foamed heavy sound-proof layer structure as claimed in claim 4, wherein the thickness of the skin layer is 1mm-2 mm; the thickness of the buffering sound absorption layer is 0.5mm-3mm, the thickness of the foaming heavy sound insulation layer is 0.7mm-3mm, and the thickness of the supporting layer is 10mm-25 mm.

6. The carpet for vehicles of claim 1, wherein the density of the foamed heavy sound insulation layer is 1.2g/cm in thin-wall and thin-wall.