CN108215443A - A kind of preparation method of ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile - Google Patents
A kind of preparation method of ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile Download PDFInfo
- Publication number
- CN108215443A CN108215443A CN201711451806.2A CN201711451806A CN108215443A CN 108215443 A CN108215443 A CN 108215443A CN 201711451806 A CN201711451806 A CN 201711451806A CN 108215443 A CN108215443 A CN 108215443A
- Authority
- CN
- China
- Prior art keywords
- foaming agent
- fiber
- microballoon foaming
- composite
- thermoplastic synthetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
This hair discloses a kind of preparation method of the ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile, microballoon foaming agent is adhered to thermoplastic synthetic fiber and/or reinforcing fiber surface when thermoplastic synthetic fiber's melt spinning oils process and/or reinforcing fiber addition parent's profit agent process, the thermoplastic synthetic fiber and reinforcing fiber for being stained with microballoon foaming agent pass through nonwovens process, through shredding, mixing, it combs, lapping, needle pierces, the blended composite fibrofelt uniformly divided sprinkled with microballoon foaming agent is made, blended composite fibrofelt is made automobile interior exterior through continuity pressing plate equipment complex and adorns ultralight high-strength GMT composite boards.Microballoon foaming agent is adhered to thermoplastic synthetic fiber when thermoplastic synthetic fiber's melt spinning oils process and/or reinforcing fiber addition parent's profit agent process and/or the step of being more suitable for serialization batch production in a manner that feltwork impregnation technology introduces microballoon foaming agent, reducing feltwork drying is compared on reinforcing fiber surface.
Description
Technical field
The invention belongs to automobile interior exterior decorations thermoplastic composite technical field, specifically, being related to a kind of for vapour
The preparation method of the ultralight high-strength GMT composite boards of interior exterior trimming parts.
Background technology
The one of the important signs that the development level of auto industry is a National modern civilization with scientific and technological level development, nearly 10
Nian Lai, auto industry are always maintained at faster growth trend, but the vapour developed rapidly as the important engine of Chinese national economy
Turner industry also brings the problems such as energy shortage, environmental pollution, healthy and safe to the earth and the mankind.Therefore, how to be promoted
The energy-saving and environmental protection of automobile and automotive material with it is healthy and safe be the key that from now on auto industry can continue develop in a healthy way.Vehicle body
Light-weight design be realize automotive energy-saving emission-reducing most directly and most effective approach.Plastics and its composite material can not only mitigate
The quality of parts about 40% can also make production cost reduce by 40% or so, so some are with the novel of excellent comprehensive performance
Composite material is increasingly paid attention to by automobile main frame maker.One of which it is compound by continuous Glass Fiber Mat and thermoplastic resin and
Into a kind of advanced composite material (ACM), abbreviation GMT (Glass fiberMatreinforcedThermoplastics), because it has
The features such as light-weight environment-friendly, sound-absorption and heat-insulation, high-strength tenacity, excellent resistance to chemical corrosion and environmental suitability, and as current vapour
Exploitation kind the most active in vehicle interior/exterior material, being widely used to all kinds of inner and outer decorative parts of automobile, (automobile bottom shielding is anti-
Protection unit, bearing plate, inside roof lining, door trim, luggage carrier, roof molded item, hood and vehicle trunk lid, tooth
Take turns case lid etc.).However, at present in domestic automobile exterior trim with light GMT sheet material mainly using dry carding technique, be primarily present with
Lower defect：
(1) fiber is caused to damage in carding process, the glass physical length after combing only has 30~50mm；
(2) feature of carding process so that glass orientation therein is apparent, and plank physical mechanical property shows significantly
Anisotropic feature；
(3) (3) meldable fibre and glass fibre are mainly combined in a manner of connection, thus resin usage amount is larger,
The cost is relatively high, and further ultra lightweighting is difficult to realize.
(4) these problems, which will all become, restricts light GMT sheet material development and widely applied bottleneck, is especially applied to new
Energy automobile.The comprehensive performance of light GMT composite board how is further improved, makes product that there is ultra lightweighting (≤0.3g/
cm3) development topic that more agrees with " environmentally friendly, energy saving, lightweight " become the research hotspot of the material.
The country is limited by equipment and technology R ＆ D Level, the main method using improvement prior art, for example is being combed
Cheng Zhong by adjusting process equipment parameter, slightly hits glass, reduces the damage of glass, so as to improve the mechanical property of plank；
In the lay-up process of single fiber net, by way of changing lapping, the orientation of glass is made to change, so as to reduce plank in length and breadth
The difference of mechanical property；Appropriate surface treatment is carried out on base felt surface, so as to change hot property of plank etc..It is but above-mentioned to change
Kind mode does not change the inner constructional form of fibre web fundamentally, is still combined in a manner of connection between glass fibre, felt
Thickness of net direction orientation fiber content is on the low side, layer by layer only by needle thorn consolidation between fibre web, component high bulking during post forming
Region levels fibre web combines deficiency, still needs to ensure plank mechanical property by increasing resin demand, so increase with resin demand, plate
Material is puffing than reducing, and penetrates into air content deficiency, product ultralightization is difficult to realize, and plank design freedom and NVH performances are also tight
It is limited again.
Patent CN201610763845.5 in existing light GMT dry carding by, into road after felt technique, passing through fibrofelt
Impregnation technology introduces microballoon foaming agent in GMT feltworks, by changing the method for supporting and combination that lattice point connects between reinforcing fiber
The expansion characteristics of microballoon foaming agent adjust the puffed degree of plank, gained plank in post forming can bulk extension and make thickness
Reach original 5-10 times, further according to properties of product requirement by adjust it is puffing after compression ratio, on-demand pressing obtains different
The inner and outer decorative parts of automobile product of intensity, rigidity and acoustic resistance characteristic.The further ultra lightweightings of traditional lightweight GMT are efficiently solved to be stranded
Difficulty penetrates into the defects of air capacity is insufficient, and product design freedom and NVH performances far lag behind external imported product.But through dipping
Technique introduces microballoon foaming agent, and rear road feltwork drying is difficult, and energy consumption is big, is unfavorable for continuous production.
Reinforcing fiber, thermoplastic resin powder and microballoon foaming agent are scattered in and are added to table by patent 200680020471.2
In the bubble liquid of face activating agent, mesh (also known as paper process) is made by copy paper method, but this manufacturing method needs complicated knot
The device of structure, operation, technique are also very miscellaneous.Due to the use of interfacial agent make reinforcing fiber, thermoplastic resin powder with it is micro-
The high price foam solution of ball foaming agent modulation, so cost is also relatively high.
Invention content
To solve the above problems, the invention discloses a kind of ultralight high-strength GMT composite boards for automobile interior exterior part
Preparation method.The present invention adds microballoon foaming agent in oil process and/or reinforcing fiber of thermoplastic synthetic fiber's melt spinning
Thermoplastic synthetic fiber and/or reinforcing fiber surface are adhered to during parent's profit agent process, the thermoplasticity for being stained with microballoon foaming agent is closed
Into fiber and reinforcing fiber by nonwovens process, pierced through shredding, mixing, combing, lapping, needle, be made and uniformly divide sprinkled with microballoon
The blended composite fibrofelt of foaming agent, blended composite fibrofelt through continuity pressing plate equipment complex it is preheated, heat bonding, pressurization,
Composite material, to cool down, be cut by reinforcing fiber be reinforcement, and thermoplastic synthetic fiber is bonding matrix, microballoon foaming agent
Automobile interior exterior for filling modifying agent adorns ultralight high-strength GMT composite boards.The composite board is swollen due to microballoon foaming agent
Swollen characteristic helps plank bulk extend to original thickness 5-10 times when reheating is molded, and can be required according to properties of product logical
Overregulate it is puffing after compression ratio and by the extruding impregnation of microballoon foaming agent, on-demand pressing obtains the vapour of high intensity, high rigidity
Interior exterior trimming parts product.In addition to secondary, the introducing of microballoon foaming agent also makes the connection mode between material internal glass fibre feltwork
More diversified, in addition to traditional point connection, the glass fibre on its periphery is strapped in one by microballoon foaming agent as connection bridge
It rises, is connected to each other again between microballoon foaming agent, these diversified connection modes make feltwork structure hair inside GMT composite boards
Radical change has been given birth to, product mechanical performance is obviously improved, so as to make it under the premise of vehicle safety and strength characteristics is ensured,
Own material dosage is reduced, realizes the purpose of ultralightization.
The technical solution adopted by the present invention is illustrated below：
The invention discloses a kind of preparation method of the ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile, microballoons
Foaming agent is adhered to thermoplastic when thermoplastic synthetic fiber's melt spinning oils process and/or reinforcing fiber addition parent's profit agent process
Property synthetic fibers and/or reinforcing fiber surface, the thermoplastic synthetic fiber and/or reinforcing fiber for being stained with microballoon foaming agent pass through
Nonwovens process is pierced through shredding, mixing, combing, lapping, needle, and the blended composite fibre uniformly divided sprinkled with microballoon foaming agent is made
Felt, blended composite fibrofelt is through continuity pressing plate equipment complex is preheated, heat bonding, pressurization, composite material, cooling, cutting are made
Into being reinforcement by reinforcing fiber, thermoplastic synthetic fiber is bonding matrix, and microballoon foaming agent is in the automobile of filling modifying agent
The ultralight high-strength GMT composite boards of exterior trim.
As a further improvement, the present invention specifically includes following steps：
1), microballoon foaming agent is scattered in the finish that thermoplastic synthetic fiber's melt spinning oils needed for process, fiber
Microballoon foaming agent is adhered to when oiling during melt spinning through oil bath；And/or microballoon foaming agent is scattered in enhancing
In parent's profit agent needed for fiber, microballoon foaming agent is adhered to reinforcing fiber surface when being handled by doing parent's profit to reinforcing fiber,
Based on thermoplastic synthetic fiber and/or reinforcing fiber gross weight, the content of microballoon foaming agent is thermoplastic synthetic fiber and/or enhancing
The 1wt%-10wt% of total fiber mass；
2), will be stained with the thermoplastic synthetic fiber of microballoon foaming agent and/or the reinforcing fiber with microballoon foaming agent by
Ratio is uniformly mixed, and is pierced by nonwovens process through shredding, mixing, combing, lapping, needle, is made uniformly to divide and foam sprinkled with microballoon
The blended composite fibrofelt of agent, the thermoplastic synthetic fiber for being stained with microballoon foaming agent and the enhancing for being stained with microballoon foaming agent are fine
Dimensional ratio is in 30wt%:70wt%-70wt%:It is adjusted between 30wt%；
3), blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding pressurizes, is compound
The ultralight high-strength GMT composite boards, 160-190 DEG C of preheating temperature is made in fabric, cooling and cutting.
As a further improvement, the surface density of the ultralight high-strength GMT composite boards prepared by the present invention is 500-
2000g/m2, volume density 0.05-0.5g/cm3。
As a further improvement, microballoon foaming agent of the present invention is by polymeric shells and the foaming agent structure of its package
Into wherein polymeric shells are the individual layer or double-layer structure that acrylic polymer is formed, and foaming agent is ethane, propane, third
One or more of alkene, iso-butane, butylene, isobutene, pentane, isopentane, petroleum ether, the grain size of microballoon foaming agent are
15-40 μm, maximum foam volume multiplying power is 5-10 times, and size is 75-400 μm after foaming, and foaming initial temperature is 160-210
℃。
As a further improvement, thermoplastic synthetic fiber of the present invention is polypropylene fibre PP, polyethylene fibre
One or more of PE, polyester fiber PET, ES fiber, nylon fiber PA；The reinforcing fiber is glass fibre, carbon is fine
One or more of dimension, basalt fibre, plant fiber.
As a further improvement, in step 3) of the present invention, the composite material step between pressurization and cooling includes
Compound upper epidermis and/or following table shell fabric, the upper epidermis and/or following table shell fabric be selected from polypropylene glued membrane, polyethylene glued membrane,
One or more of EVA adhesive film, EAA glued membranes, polyester film, hot-melt adhesive powder, non-woven fabrics or weather-proof, enhancing composite membrane.
The technique effect and advantage of the present invention is：
(1), the present invention introduces microballoon foaming agent inside existing light GMT composite board feltwork, by microballoon foaming agent
Expansion characteristics help plank bulk extend to original thickness 5-10 times when reheating be molded, can according to properties of product want
Ask by adjust it is puffing after compression ratio and by the extruding impregnation of microballoon foaming agent, on-demand pressing obtains high intensity, high rigidity
Inner and outer decorative parts of automobile product.In addition to secondary, the introducing of microballoon foaming agent also makes the connection between material internal glass fibre feltwork
Mode is more diversified, and in addition to traditional point connection, microballoon foaming agent fetters the glass fibre on its periphery as connection bridge
Together, it is connected to each other again between microballoon foaming agent, these diversified connection modes make feltwork knot inside GMT composite boards
Radical change has occurred in structure, and product mechanical performance is obviously improved, so as to make it before vehicle safety and strength characteristics is ensured
It puts, reduces own material dosage, realize the purpose of ultralightization.
It (2), will be micro- when thermoplastic synthetic fiber's melt spinning oils process and/or reinforcing fiber addition parent's profit agent process
Ball foaming agent is adhered to thermoplastic synthetic fiber and/or reinforcing fiber surface passes through feltwork compared to patent CN201610763845.5
The step of mode that impregnation technology introduces microballoon foaming agent is more suitable for serialization batch production, reduces feltwork drying.Compared to patent
200680020471.2 manufacture cost is reduced, without preparing high price bubble liquid.
Description of the drawings
Fig. 1 is feltwork structure chart inside the ultralight high-strength GMT composite boards prepared using the present invention；
Fig. 2 is the vapour prepared using ultralight high-strength GMT composite boards prepared by the present invention with traditional lightweight GMT composite boards
The inside feltwork Structure Comparison figure of interior exterior trimming parts；
Fig. 3 is that the automobile bottom prepared using ultralight high-strength GMT composite boards prepared by the present invention protects component and traditional lightweight
Automobile bottom shield component testing sound absorption performance comparison diagram prepared by GMT composite boards；
Fig. 4 is the roof of the vehicle component and traditional lightweight prepared using ultralight high-strength GMT composite boards prepared by the present invention
Roof of the vehicle component testing sound absorption performance comparison diagram prepared by GMT composite boards.
In figure, 1 is polypropylene fibre, and 2 be glass fibre, and 3 be microballoon foaming agent.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but following examples and attached drawing be only to
Understand the present invention, and cannot limit the present invention application range, the present invention can be defined by the claims and cover it is a variety of not
Implement with mode.
Embodiment one
A kind of ultralight high-strength GMT composite boards for being used to prepare automobile bottom backplate, it is fine by the polypropylene as bonding matrix
Dimension 1, it is puffing than effect as the glass fibre 2 of reinforcement and with lattice point connection mode adjustment plank between glass fibre is changed
Microballoon foaming agent 3 forms, as shown in Figure 1.
Its specific preparation method, includes the following steps：
(1) starting blowing temperature is scattered in 1 melt spinning of polypropylene fibre for 180-210 DEG C of microballoon foaming agent to oil work
In finish needed for sequence, polypropylene fibre 1 adheres to microballoon foaming agent 3 when oiling during melt spinning through oil bath, micro-
The adhesive capacity of ball foaming agent 3 is the 5wt% of 1 mass of polypropylene fibre；
(2) blowing temperature will be originated to be scattered in parent's profit agent needed for glass fibre 2 for 180-210 DEG C of microballoon foaming agent 3,
Microballoon foaming agent 3 is adhered to 2 surface of glass fibre, the adherency of microballoon foaming agent 3 during by doing parent's profit processing to glass fibre 2
Measure the 5wt% for 2 mass of glass fibre；
(3) by be stained with microballoon foaming agent 3 polypropylene fibre 1 and glass fibre 2 by 60wt%:40wt% ratios mix
Uniformly, it is pierced by nonwovens process through shredding, mixing, combing, lapping, needle, is made and uniformly divides sprinkled with the blended of microballoon foaming agent 3
Composite fibrofelt；
(4) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, following table
Layer compound weather-proof enhancing composite membrane, upper surface composite hydrophobic refuse oily non-woven fabrics, cooling and cutting and automobile bottom backplate are made with ultralight
High-strength GMT composite boards, preheating temperature are 160-180 DEG C, and the surface density of composite board is 1000g/m2。
The ultralight high-strength GMT composite boards of gained are prepared into automobile bottom backplate by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, make plank in 2 internal stress of glass fibre and microballoon
Under the double action of foaming agent 3, thickness is bulk to extend to original 5 times；
(2) according to bottom sheeting product performance requirement, the compression ratio after adjusting is puffing is molded as anti-impact area thickness as 3.5mm
Volume density is 0.29g/cm3, it is 0.11g/cm that sound-absorbing area thickness, which is 9mm volume densitys,3Automobile bottom sheeting product.
Comparative example 1
A kind of traditional lightweight GMT composite boards for being used to prepare automobile bottom backplate, it is fine by the polypropylene as bonding matrix
Dimension 1 and the glass fibre 2 as reinforcement form.
Its specific preparation method, includes the following steps：
(1) polypropylene fibre 1 and glass fibre 2 are pressed into 60wt%:40wt% ratios are uniformly mixed, and pass through nonwovens process
Through shredding, mixing, combing, lapping, needle thorn, blended composite fibrofelt is made；
(2) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, following table
The compound weather-proof enhancing composite membrane of layer, upper surface composite hydrophobic refuse oily non-woven fabrics, cooling and cutting and automobile bottom backplate tradition are made
Light GMT composite board, preheating temperature are 160-180 DEG C, and the surface density of composite board is 1000g/m2。
Gained traditional lightweight GMT composite boards are prepared into automobile bottom backplate by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, plank is only in the effect of 2 internal stress of glass fibre
Under, thickness bulk can only extend to original 2 times；
(2) according to bottom sheeting product performance requirement, the compression ratio after adjusting is puffing is molded as anti-impact area thickness as 3.5mm
Volume density is 0.29g/cm3, it is 0.13g/cm that sound-absorbing area thickness, which is 8mm volume densitys,3Automobile bottom sheeting product.
Comparative example 2
A kind of traditional lightweight GMT composite boards for being used to prepare automobile bottom backplate, it is fine by the polypropylene as bonding matrix
Dimension 1 and the glass fibre 2 as reinforcement form.
Its specific preparation method, includes the following steps：
(1) polypropylene fibre 1 and glass fibre 2 are pressed into 60wt%:40wt% ratios are uniformly mixed, and pass through nonwovens process
Through shredding, mixing, combing, lapping, needle thorn, blended composite fibrofelt is made；
(2) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, following table
The compound weather-proof enhancing composite membrane of layer, upper surface composite hydrophobic refuse oily non-woven fabrics, cooling and cutting and automobile bottom backplate tradition are made
Light GMT composite board, preheating temperature are 160-180 DEG C, and the surface density of composite board is 1400g/m2。
Gained traditional lightweight GMT composite boards are prepared into automobile bottom backplate by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, plank is only in the effect of glass fibre internal stress
Under, thickness bulk can only extend to original 2.5 times；
(2) according to bottom sheeting product performance requirement, the compression ratio after adjusting is puffing is molded as anti-impact area thickness as 3.5mm
Volume density is 0.40g/cm3, it is 0.16g/cm that sound-absorbing area thickness, which is 9mm volume densitys,3Automobile bottom sheeting product.
Comparative example 3
Referenced patent CN201610763845.5, by, into road after felt technique, passing through fibre in existing light GMT dry carding
The similar this patent similar product that dimension felt impregnation technology introduces the preparation of microballoon foaming agent 3 in GMT feltworks is used to prepare automobile bottom
The ultralight high-strength GMT composite boards of backplate.
It shows in the following table 1 and is answered using the present invention and referenced patent the CN201610763845.5 ultralight high-strength GMT prepared
The performance comparison of plywood and the bottom backplate of traditional lightweight GMT composite plates molding.
Table 1
Embodiment 1 introduces microballoon foaming agent 3, the introducing of microballoon foaming agent 3 inside existing light GMT composite board feltwork
Make the connection mode between glass fibre 2 more diversified, in addition to traditional point connection, microballoon foaming agent 3 will as connection bridge
The glass fibre 2 on its periphery is bound together, and is connected to each other again between microballoon foaming agent 3, as shown in Fig. 2, these are diversified
Connection mode make feltwork structure inside composite board that radical change have occurred, thus product is protected in same isodensity in prepared bottom
It is obviously improved compared to 1 mechanical performance of comparative example down, it is suitable with conventional high-density GMT composite plates 2 mechanical performances of comparative example, so as to make
It reduces own material dosage under the premise of vehicle safety and strength characteristics is ensured, realizes the purpose of ultralightization.In addition institute
The ultralight high-strength GMT planks prepared are protected at post forming bottom in product process, in 2 internal stress of glass fibre and microballoon foaming agent 3
Double action under, thickness is bulk to extend to original 5 times, and 2.5 times are improved compared to comparative example 1, with this composite board mould
Though bottom shield product compared to comparative example 2 in mechanical performance quite, plank porosity is high in products obtained therefrom, has in product
It is a large amount of to penetrate into air, the viscosity resistance of acoustic propagation is improved, thus product NVH performances are obviously improved, as shown in Figure 3.Comparative example 3
In by, into road after felt technique, microballoon being introduced in GMT feltworks by fibrofelt impregnation technology in existing light GMT dry carding
Similar this patent similar product prepared by foaming agent 3 is used to prepare the ultralight high-strength GMT composite boards of automobile bottom backplate.In process
In compared to this patent increase dipping, baking operation, mass energy is wasted in the moisture drying brought by impregnation technology, thus raw
It is low to produce rate；Meanwhile the gravity of moisture drives microballoon foaming agent to flow to feltwork bottom surface, leads to microballoon foaming agent in material
It is unevenly distributed, reunites in unilateral side, enhancing effect cannot fully demonstrate.
Embodiment two
A kind of ultralight high-strength GMT composite boards for being used to prepare roof of the vehicle, by the ES fibers as bonding matrix, as
The flaxen fiber of reinforcement and with change reinforcing fiber between lattice point connection mode adjustment the puffing microballoon foaming agent than effect of plank
Composition.
Its specific preparation method, includes the following steps：
(1) starting blowing temperature is scattered in ES fibers melt spin finishing processes institute for 190-210 DEG C of microballoon foaming agent
In the finish needed, ES fibers adhere to microballoon foaming agent when oiling during melt spinning through oil bath, microballoon foaming agent
Adhesive capacity is the 10wt% of ES fiber qualities；
(2) by be stained with microballoon foaming agent ES fibers and flaxen fiber by 45wt%:55wt% ratios are uniformly mixed, and are passed through
Nonwovens process is pierced through shredding, mixing, combing, lapping, needle, and the blended composite fibre uniformly divided sprinkled with microballoon foaming agent is made
Felt；
(5) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, upper table
It is compound with ultralight high-strength GMT that roof of the vehicle is made in layer bonding PE hot melt adhesive films, the compound fabric hot rolled nonwoven fabrics in lower surface, cooling and cutting
Plank, preheating temperature are 160-170 DEG C, and the surface density of composite board is 600g/m2。
The ultralight high-strength GMT composite boards of gained are prepared into roof of the vehicle component by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, plank is made to be sent out in flaxen fiber internal stress and microballoon
Under the double action of infusion, thickness is bulk to extend to original 8 times；
(2) surface overlays ceiling modification foam fabric on it；
(3) required according to ceiling properties of product, by adjust it is puffing after compression ratio, be molded as big face thickness as 5mm bodies
Density is 0.12g/cm3Roof of the vehicle product.
Comparative example 4
A kind of traditional lightweight GMT composite boards for being used to prepare roof of the vehicle, by the ES fibers as bonding matrix, as
The flaxen fiber composition of reinforcement.
Its specific preparation method, includes the following steps：
(1) ES fibers and flaxen fiber are pressed into 45wt%:55wt% ratios are uniformly mixed, by nonwovens process through shredding,
Mixing, combing, lapping, needle thorn, are made blended composite fibrofelt；
(2) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, upper table
It is compound with traditional lightweight GMT that roof of the vehicle is made in layer bonding PE hot melt adhesive films, the compound fabric hot rolled nonwoven fabrics in lower surface, cooling and cutting
Plank, preheating temperature are 160-170 DEG C, and the surface density of composite board is 600g/m2.
Gained Traditional GM T composite boards are prepared into roof of the vehicle component by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, make plank under the action of flaxen fiber internal stress,
Thickness is bulk to extend to original 3 times；
(2) surface overlays ceiling modification foam fabric on it；
(3) required according to ceiling properties of product, by adjust it is puffing after compression ratio, be molded as big face thickness as 5mm bodies
Density is 0.12g/cm3Roof of the vehicle product.
Comparative example 5
A kind of traditional lightweight GMT composite boards for being used to prepare roof of the vehicle, by the ES fibers as bonding matrix, as
The flaxen fiber composition of reinforcement.
Its specific preparation method, includes the following steps：
(1) ES fibers and flaxen fiber are pressed into 45wt%:55wt% ratios are uniformly mixed, by nonwovens process through shredding,
Mixing, combing, lapping, needle thorn, are made blended composite fibrofelt；
(2) blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, upper table
It is compound with traditional lightweight GMT that roof of the vehicle is made in layer bonding PE hot melt adhesive films, the compound fabric hot rolled nonwoven fabrics in lower surface, cooling and cutting
Plank, preheating temperature are 160-170 DEG C, and the surface density of composite board is 800g/m2。
Gained Traditional GM T composite boards are prepared into roof of the vehicle component by following technique：
(1) composite board is put into baking oven, is heated to 180-210 DEG C, make plank under the action of flaxen fiber internal stress,
Thickness is bulk to extend to original 3.5 times；
(2) surface overlays ceiling modification foam fabric on it；
(3) required according to ceiling properties of product, by adjust it is puffing after compression ratio, be molded as big face thickness as 5mm bodies
Density is 0.16g/cm3Roof of the vehicle product.
Show that the ultralight high-strength GMT composite plates prepared using the present invention and traditional lightweight GMT composite plates are moulded in the following table 2
Roof of the vehicle component performance comparison.
Table 2
Embodiment 2 introduces microballoon foaming agent inside existing light GMT composite board feltwork, and the introducing of microballoon foaming agent makes
Connection mode between flaxen fiber is more diversified, and in addition to traditional point connection, microballoon foaming agent is used as connection bridge by its periphery
Flaxen fiber be bound together, between microballoon foaming agent again be connected to each other, these diversified connection modes make composite board
Radical change has occurred in internal feltwork structure, thus prepared ceiling product is in 4 mechanicalness of comparative example compared under isodensity
It can be obviously improved, it is suitable with conventional high-density GMT composite plates 5 mechanical performances of comparative example, so as to which it be made to ensure vehicle safety
Under the premise of strength characteristics, own material dosage is reduced, realizes the purpose of ultralightization.In addition prepared ultralight high-strength GMT
Plank is in post forming ceiling product process, and under the double action of flaxen fiber internal stress and microballoon foaming agent, thickness is bulk
Original 8 times are extended to, nearly 4 times are improved compared to comparative example 3, comparative example 5 is compared with the ceiling product of this composite board molding
Though in mechanical performance quite, plank porosity is high in products obtained therefrom, there is a large amount of infiltration air in product, improves sound
The viscosity resistance of propagation, thus product NVH performances are obviously improved, as shown in Figure 4.
Listed above is only some specific embodiments of the present invention, it is clear that the present invention is not limited to above example, may be used also
With there are many all changes that deformation, those of ordinary skill in the art directly can be exported or be associated from present disclosure
Shape is considered as protection scope of the present invention.
Claims (6)
1. the preparation method of a kind of ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile, which is characterized in that microballoon foams
Agent is adhered to thermoplasticity when thermoplastic synthetic fiber's melt spinning oils process and/or reinforcing fiber addition parent's profit agent process and closes
Into fiber and/or reinforcing fiber surface, the thermoplastic synthetic fiber and/or reinforcing fiber for being stained with microballoon foaming agent are knitted by non-
Technique is made, is pierced through shredding, mixing, combing, lapping, needle, the blended composite fibrofelt uniformly divided sprinkled with microballoon foaming agent is made, mixes
Spin composite fibrofelt through continuity pressing plate equipment complex it is preheated, heat bonding, pressurization, composite material, cool down, be cut by increasing
Strong fiber is reinforcement, and thermoplastic synthetic fiber is bonding matrix, and microballoon foaming agent is used for the automobile interior exterior decorations of filling modifying agent
Ultralight high-strength GMT composite boards.
2. the preparation method of the ultralight high-strength GMT composite boards according to claim 1 for inner and outer decorative parts of automobile, special
Sign is, specifically includes following steps：
1), microballoon foaming agent is scattered in the finish that thermoplastic synthetic fiber's melt spinning oils needed for process, fiber is molten
Melt and microballoon foaming agent is adhered to when oiling in spinning process through oil bath；And/or microballoon foaming agent is scattered in reinforcing fiber
In required parent's profit agent, microballoon foaming agent is adhered to reinforcing fiber surface when being handled by doing parent's profit to reinforcing fiber, is based on
Thermoplastic synthetic fiber and/or reinforcing fiber gross weight, the content of microballoon foaming agent is thermoplastic synthetic fiber and/or reinforcing fiber
The 1wt%-10wt% of gross mass；
2), the thermoplastic synthetic fiber of microballoon foaming agent will be stained with and/or reinforcing fiber with microballoon foaming agent in proportion
It is uniformly mixed, is pierced by nonwovens process through shredding, mixing, combing, lapping, needle, be made and uniformly divide sprinkled with microballoon foaming agent
Blended composite fibrofelt, the thermoplastic synthetic fiber for being stained with microballoon foaming agent and the reinforcing fiber ratio for being stained with microballoon foaming agent
Example is in 30wt%:70wt%-70wt%:It is adjusted between 30wt%；
3), blended composite fibrofelt is supplied in continuous type composite pressure plate equipment, preheated, heat bonding, pressurization, composite surface
The ultralight high-strength GMT composite boards, 160-190 DEG C of preheating temperature is made in material, cooling and cutting.
3. the preparation method of the ultralight high-strength GMT composite boards according to claim 1 or 2 for inner and outer decorative parts of automobile,
It is characterized in that, the surface density of prepared ultralight high-strength GMT composite boards is 500-2000g/m2, volume density 0.05-
0.5g/cm3。
4. the preparation method of the ultralight high-strength GMT composite boards according to claim 1 or 2 for inner and outer decorative parts of automobile,
It is characterized in that, the microballoon foaming agent is made of the foaming agent of polymeric shells and its package, wherein polymeric shells are
The individual layer or double-layer structure that acrylic polymer is formed, foaming agent is ethane, propane, propylene, iso-butane, butylene, isobutyl
One or more of alkene, pentane, isopentane, petroleum ether, the grain size of microballoon foaming agent is 15-40 μm, maximum foam volume
Multiplying power is 5-10 times, and size is 75-400 μm after foaming, and foaming initial temperature is 160-210 DEG C.
5. the preparation method of the ultralight high-strength GMT composite boards according to claim 1 or 2 for inner and outer decorative parts of automobile,
It is characterized in that the thermoplastic synthetic fiber for polypropylene fibre PP, polyethylene fibre PE, polyester fiber PET, ES fiber,
One or more of nylon fiber PA；The reinforcing fiber is glass fibre, carbon fiber, basalt fibre, plant fiber
One or more of.
6. according to claim, the preparation method of the ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile described in 2,
It is characterized in that, in the step 3), the composite material step between pressurization and cooling includes compound upper epidermis and/or following table level
Material, the upper epidermis and/or following table shell fabric are selected from polypropylene glued membrane, polyethylene glued membrane, EVA adhesive film, EAA glued membranes, polyester
One or more of film, hot-melt adhesive powder, non-woven fabrics or weather-proof, enhancing composite membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451806.2A CN108215443B (en) | 2017-12-28 | 2017-12-28 | Preparation method of ultra-light high-strength GMT composite board for automobile interior and exterior trimming parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451806.2A CN108215443B (en) | 2017-12-28 | 2017-12-28 | Preparation method of ultra-light high-strength GMT composite board for automobile interior and exterior trimming parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108215443A true CN108215443A (en) | 2018-06-29 |
| CN108215443B CN108215443B (en) | 2020-07-17 |
Family
ID=62649271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711451806.2A Active CN108215443B (en) | 2017-12-28 | 2017-12-28 | Preparation method of ultra-light high-strength GMT composite board for automobile interior and exterior trimming parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108215443B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038042A (en) * | 2019-12-31 | 2020-04-21 | 浙江华江科技股份有限公司 | Ultra-light high-strength high-sound-absorption fiber reinforced thermoplastic foaming composite board and preparation method thereof |
| CN111376489A (en) * | 2018-12-29 | 2020-07-07 | 浙江华江科技股份有限公司 | Preparation process of light fiber reinforced thermoplastic sheet for covering curtain |
| CN112060265A (en) * | 2019-12-06 | 2020-12-11 | 扬州超峰汽车内饰件有限公司 | Decorative board and preparation method thereof |
| CN112848367A (en) * | 2020-12-31 | 2021-05-28 | 浙江华江科技股份有限公司 | Preparation method of novel vehicle ultra-light high-strength GMT composite board |
| TWI820405B (en) * | 2020-08-28 | 2023-11-01 | 日商大賽璐股份有限公司 | Methods of manufacturing fiber articles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104324A (en) * | 2006-07-11 | 2008-01-16 | 丰田纺织株式会社 | Thermally expandable sheet, molded product for vehicle using the thermally expandable sheet, and method for manufacturing the sheet and product |
| CN102517912A (en) * | 2011-12-09 | 2012-06-27 | 东华大学 | Preparation method of nano-grade silver antibiotic fabric |
| CN104248273A (en) * | 2014-09-09 | 2014-12-31 | 江苏蓝品纤维科技发展有限公司 | Production technique of multifunctional polyester fiber quilt mat |
| CN105133350A (en) * | 2015-09-29 | 2015-12-09 | 北京宇田相变储能科技有限公司 | Heat and humidity intelligent adjusting fabric and preparing method thereof |
| CN106427163A (en) * | 2016-08-30 | 2017-02-22 | 浙江华江科技股份有限公司 | Preparation method of high-sound-absorption ultralight high-strength GMT composite board |
-
2017
- 2017-12-28 CN CN201711451806.2A patent/CN108215443B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104324A (en) * | 2006-07-11 | 2008-01-16 | 丰田纺织株式会社 | Thermally expandable sheet, molded product for vehicle using the thermally expandable sheet, and method for manufacturing the sheet and product |
| CN102517912A (en) * | 2011-12-09 | 2012-06-27 | 东华大学 | Preparation method of nano-grade silver antibiotic fabric |
| CN104248273A (en) * | 2014-09-09 | 2014-12-31 | 江苏蓝品纤维科技发展有限公司 | Production technique of multifunctional polyester fiber quilt mat |
| CN105133350A (en) * | 2015-09-29 | 2015-12-09 | 北京宇田相变储能科技有限公司 | Heat and humidity intelligent adjusting fabric and preparing method thereof |
| CN106427163A (en) * | 2016-08-30 | 2017-02-22 | 浙江华江科技股份有限公司 | Preparation method of high-sound-absorption ultralight high-strength GMT composite board |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376489A (en) * | 2018-12-29 | 2020-07-07 | 浙江华江科技股份有限公司 | Preparation process of light fiber reinforced thermoplastic sheet for covering curtain |
| CN112060265A (en) * | 2019-12-06 | 2020-12-11 | 扬州超峰汽车内饰件有限公司 | Decorative board and preparation method thereof |
| CN111038042A (en) * | 2019-12-31 | 2020-04-21 | 浙江华江科技股份有限公司 | Ultra-light high-strength high-sound-absorption fiber reinforced thermoplastic foaming composite board and preparation method thereof |
| TWI820405B (en) * | 2020-08-28 | 2023-11-01 | 日商大賽璐股份有限公司 | Methods of manufacturing fiber articles |
| CN112848367A (en) * | 2020-12-31 | 2021-05-28 | 浙江华江科技股份有限公司 | Preparation method of novel vehicle ultra-light high-strength GMT composite board |
| CN112848367B (en) * | 2020-12-31 | 2022-05-03 | 浙江华江科技股份有限公司 | Preparation method of ultra-light high-strength GMT composite board for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108215443B (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106427163B (en) | A kind of preparation method of the ultralight high-strength GMT composite boards of high sound absorption-type | |
| CN106393908B (en) | A kind of ultralight high-strength GMT composite boards of high sound absorption-type | |
| CN108215443A (en) | A kind of preparation method of ultralight high-strength GMT composite boards for inner and outer decorative parts of automobile | |
| CN108068424A (en) | A kind of preparation method of ultralight high-strength GMT composite boards | |
| CN104691070B (en) | Light-duty MULTILAYER COMPOSITE base material and preparation method thereof | |
| CN102173141B (en) | Nonwoven composite material for automobile interior trim and preparation method thereof | |
| CN102896843B (en) | For making bamboo fiber composite base material and the inside gadget manufacture method of automotive upholstery | |
| CN109618554A (en) | Molding and the method for manufacturing the molding | |
| CN101549671B (en) | method of manufacturing of fibrilia automobile inner decoration member | |
| CN101096134A (en) | Sandwich structural fiber board | |
| US20170022642A1 (en) | Low-voc natural fiber composite material, preparation method therefor and application thereof | |
| CN101574938B (en) | Composite sound-proof formed foaming automobile carpet and preparation method thereof | |
| CN105313430B (en) | Method for manufacturing baffle component and the baffle component being produced from it | |
| CN102963079B (en) | Automotive trim fiber composite felt, composite fiber plate, and preparation method thereof | |
| AU2013356368B2 (en) | Articles including untwisted fibers and methods of using them | |
| CN104626690A (en) | Natural fiber composite sheet material and preparation method thereof | |
| CN103088551A (en) | Light bastose and flame-retardant polypropylene fiber composite board and method for manufacturing same | |
| CN103317801A (en) | Blend fiber plate and preparation method thereof | |
| CN109823012A (en) | Ultralight high sound-absorbing GMT enhancing PU Thermoplastic Automotive interior decorative composite board of one kind and preparation method thereof | |
| CN107313180A (en) | Multi-functional polypropylene fibre and flaxen fiber needle-punched composite and preparation method thereof | |
| CN107326531A (en) | Multi-functional polypropylene fibre and glass fibre needle-punched composite and preparation method thereof | |
| CN102443969A (en) | Method for preparing differential-linear density self-adhesive flame retardant composite fiber web | |
| US20170144388A1 (en) | Moulded Product for Automotive Panels | |
| CN111038042A (en) | Ultra-light high-strength high-sound-absorption fiber reinforced thermoplastic foaming composite board and preparation method thereof | |
| CN109440298A (en) | A kind of automobile-used bamboo fibre composite felt and its preparation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |