CN111021651A - Light high-sound-absorption fiber wallboard and preparation method thereof - Google Patents
Light high-sound-absorption fiber wallboard and preparation method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
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- 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
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- 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
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- 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
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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Abstract
The invention discloses a light high-sound-absorption fiber wallboard and a preparation method thereof, wherein a fiber wallboard structure sequentially comprises wall cloth, a glue film, a fiber felt, a glue film and non-woven fabric from top to bottom, the wallboard is prepared by hot-pressing and compounding, the preparation method comprises the steps of sequentially unreeling the wall cloth, the glue film and the non-woven fabric on a unreeling frame of a compounding machine, heating a glass fiber felt through a tunnel oven, conveying the glass fiber felt to the middle of two layers of glue films and the like, the whole unit area mass of the fiber wallboard is 1180-2190, the weight of the fiber wallboard is about 2-3 kg lighter than that of a bamboo fiber wallboard in the market, the fiber wallboard can be bent and rebounded at a large angle, great convenience is brought to transportation and installation, the interior of the fiber wallboard is of a three-dimensional structure, and the fiber wallboard has.
Description
Technical Field
The invention relates to the technical field of wallboards, in particular to a light high-sound-absorption fiber wallboard and a preparation method thereof.
Background
In recent years, the living standard of people is greatly improved, the requirement of people on the quality of indoor decoration materials is gradually enhanced, the indoor decoration materials are continuously updated, and functionalized wall materials with the functions of heat preservation, flame retardance, sound absorption, 0 formaldehyde, moisture resistance, light weight, convenience in installation and the like are gradually developed. The fiber wallboard is favored by broad owners due to the characteristics of high decoration speed and environmental protection.
The wall board of the current popular door in the market is a bamboo-wood fiber wall board, a wood-plastic base material is formed by extruding and processing raw materials such as PVC, calcium powder, bamboo-wood fiber and the like, and a wall decoration material formed by attaching a PVC film, a PP film or wall cloth to the surface is adhered to the surface. Because the bamboo-wood fiber wallboard is an extruded section, the structural benefit brought by fiber materials is not reflected in the actual base material, the problems of poor sound absorption and noise reduction effects, seasonal moisture regain, wall body mildew caused by air impermeability and the like exist, and the mass per unit area is generally 3-5kg and is relatively heavy.
Disclosure of Invention
In order to solve the problems encountered by the wallboard at the current stage, the invention develops a light and high-sound-absorption fiber wallboard and a preparation method thereof, and the invention is mainly characterized in that 100% of fibers are adopted as a core layer for the first time in the field of wallboards, and a hot melt adhesive film is adopted as a composite wall decoration material of an adhesive layer, and the specific technical scheme of the invention is as follows:
the invention discloses a light high-sound-absorption fiber wallboard, wherein the fiber wallboard structure comprises wall cloth, an adhesive film, a fiber felt, an adhesive film and non-woven fabric from top to bottom, and the wallboard is prepared by hot-pressing and compounding.
As a further improvement, the adhesive film is a thermoplastic hot-melt adhesive film, one or more of PE, PP, EVA, PES and PA are blended, and the mass per unit area is 30-70 g. The hot melt adhesive film is used as the bonding layer, so that the problem of formaldehyde generated by bonding similar glue is avoided, and the adhesive is safe and environment-friendly.
As a further improvement, the hot melt adhesive film type of the invention is one of a perforated film, a silk screen film and a melt blown film. The perforated film, the silk screen film and the melt-blown film can play a role in bonding and ventilation, and the effect of high sound absorption is achieved.
As a further improvement, the flow resistance of the wall cloth and the non-woven fabric is less than 0.03 Pa.s/m3The mass of the wall cloth in unit area is 100-300 g, and the mass of the non-woven fabric in unit area is 20-50 g.
As a further improvement, the melt index of the hot melt adhesive film is 3-40 g/10 min. The excessively low melt index can cause that the hot melt adhesive film cannot be fully infiltrated with the surface of the fiber felt to cause delamination, and the bending strength of the board is reduced; too high a melt index can cause problems with surface wall coating bleeding.
As a further improvement, the fiber felt consists of PP fibers and glass fibers, the proportion of the PP fibers to the glass fibers is 30: 70-70: 30, and the mass per unit area is 1000-1700 g. The fiber felt is composed of 100% of fibers, and can embody the characteristics of air permeability, heat preservation and sound absorption when being used as a core layer of the wallboard.
The invention also discloses a preparation method of the light high-sound-absorption fiber wallboard, which comprises the following specific steps:
a. and sequentially unreeling wall cloth, a glue film and non-woven fabrics on the unreeling frame of the compound machine.
b. The glass fiber felt is heated by a tunnel oven and conveyed to the middle of the two layers of adhesive films.
c. And (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard.
As a further improvement, the heating temperature of the tunnel oven is between 180 ℃ and 210 ℃, the hot rolling compounding temperature is between 130 ℃ and 170 ℃, and the compounding speed is between 3 m/min and 8 m/min. The heating temperature of the tunnel oven is between 180 ℃ and 210 ℃, so that the fiber felt can be baked to a better thermoplastic state; the compounding temperature is 130-170 ℃, and the compounding speed is 3-8 m/min, so that the adhesive film can be fully melted and bonded, and the surface style of the wall cloth can be protected from being influenced by high temperature.
As a further improvement, the hot-pressing gap is between 4.5 and 8mm, and the pressure is between 5 and 50 MPa. Under the temperature and pressure within the range, the prepared plate has good pores, can be breathable, achieves a good sound absorption effect, and has excellent mechanical properties.
The invention adopts 100 percent of fiber as a core layer and a hot melt adhesive film as an adhesive layer for the first time, and prepares the fiber wallboard by hot-pressing compounding, and the invention has the following beneficial effects:
1. the fiber wallboard has the integral unit area mass of 1180-2190, is light in weight of about 2-3 kg compared with bamboo-wood fiber wallboards in the market, can be bent and rebounded at a large angle, and brings great convenience to transportation and installation.
2. The fiber wallboard can be cut by adopting an art designer knife without electric cutting by a special cutting tool.
3. The fiber wallboard has a three-dimensional structure inside, has the functions of ventilation and high sound absorption, can effectively reduce and absorb noise, and has the effects of heat preservation, mildew prevention and moisture prevention.
4. The invention adopts the perforated film, the silk screen film and the melt-blown film to play a role in bonding and ventilation, thereby achieving the effect of high sound absorption.
5. The melt index of the hot melt adhesive film is preferably 3-40 g/10min, and the melt index is too low, so that the hot melt adhesive film cannot be fully infiltrated with the surface of a fiber felt to cause layering, and the bending strength of a plate is reduced; the problem of surface wall cloth glue permeation can be caused by the excessively high melt index, and the bending strength and the appearance evaluation of 3-40 g/10min are optimal.
6. In the preparation method, the heating temperature of the tunnel oven is between 180 ℃ and 210 ℃, so that the fiber felt can be baked to a better thermoplastic state; the compounding temperature is 130-170 ℃, and the compounding speed is 3-8 m/min, so that the adhesive film can be fully melted and bonded, and the surface style of the wall cloth can be protected from being influenced by high temperature.
7. In the preparation method, the hot pressing gap is between 4.5 and 8mm, and the pressure is between 5 and 50 MPa. Under the temperature and pressure within the range, the prepared plate has good pores, can be breathable, achieves a good sound absorption effect, and has excellent mechanical properties.
Drawings
FIG. 1 is a schematic structural view of a fibrous wallboard according to the present invention;
FIG. 2 is a schematic view of the process and apparatus for producing the fibrous wallboard of the present invention.
1. Wall cloth, 2, hot melt adhesive film, 3, fiber felt, 4, non-woven fabric, 5, a compound machine, 6, a unreeling frame, 7 and a tunnel oven.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments, fig. 1 is a schematic structural view of the fiber wall panel of the present invention; FIG. 2 is a schematic view of the process and apparatus for producing the fibrous wallboard of the present invention.
Example 1
Preferably 200g/m2Wall cloth 1, 70g/m2Hot melt adhesive film 2 (adhesive layer, melt index is 5g/10min), 1400g/m2Of (2) a fiber mat 3 (ratio of polypropylene to glass fiber 50:50) of 45g/m2The non-woven fabric 4 is used as a raw and auxiliary material of the wallboard.
Wherein the hot melt adhesive film 2 (bonding layer) respectively selects a common PE adhesive film, a punched PE adhesive film and PE adhesive powder, the fiber felt 3 is baked at 200 ℃, and the specific steps are as follows: a. sequentially unreeling the wall cloth 1, the adhesive film and the non-woven fabric 4 on an unreeling frame 6 of a compound machine 5; b. the fiber felt is heated through a tunnel oven 7 and conveyed to the middle of the two layers of adhesive films; c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard.
The compounding temperature is 150 ℃, the compounding speed is 5m/min, the compounding gap is 6mm, the pressure is 20MPa, and the gram weight is 1785g/m by hot-pressing compounding2Fiber wallThe panels were tested for sound absorption and surface peel strength according to GB/T18696.2-2004, respectively, as shown in Table 1.
TABLE 1 comparison of Sound absorption and surface Peel Strength of different types of adhesive films (bonding layers) on fibrous wallboards
As can be seen from Table 1, different types of adhesive films (bonding layers) have great influence on the surface peel strength, the common PE adhesive film and the punched PE adhesive film have good peel strength of the wallboard, and the adhesive powder can penetrate into the fiber felt 3 due to the powder, so that the adhesive amount bonded with the surface is reduced, and the surface bonding force is reduced. In addition, different types of adhesive films (bonding layers) have great influence on the sound absorption performance of the fiber wallboard, and a continuous film is formed in the fiber wallboard by the common PE adhesive film, so that the air permeability is poor, when sound waves are transmitted to the surface of the wallboard, a large amount of sound waves are reflected, and the absorbed sound energy is greatly reduced, so that the sound absorption performance is reduced; the perforated PE adhesive film or the glue powder forms a plane containing holes in the fiber wallboard, so that more sound energy can be absorbed, and the sound absorption and noise absorption of the wallboard are improved. It is appropriate to select a perforated membrane for comprehensive analysis.
Example 2
Preferably 180g/m2Wall cloth 1, 60g/m21500g/m PP silk screen glue film250g/m (ratio of polypropylene to glass fiber 40:60)2The non-woven fabric 4 is used as a raw and auxiliary material of the wallboard.
Wherein the PP silk screen film respectively selects the melt index of 1g/10min, 3g/10min, 20g/10min, 40g/10min and 45g/10min, the fibrofelt 3 is baked at 190 ℃, and the specific steps are as follows: a. sequentially unreeling the wall cloth 1, the adhesive film and the non-woven fabric 4 on an unreeling frame 6 of a compound machine 5; b. the fiber felt is heated through a tunnel oven 7 and conveyed to the middle of the two layers of adhesive films; c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard. The compounding temperature is 155 ℃, the compounding speed is 5.5m/min, the compounding gap is 5.5mm, the pressure is 22MPa, and the gram weight is 1850g/m after hot-pressing compounding2The fiber wallboard of (1), test wallboard flexural strength and appearance evaluation, as shown in table 2.
TABLE 2 comparison of peel strength of different melt index films to fiber wallboard surface and wallboard appearance
It can be seen from table 2 that the greater the glued membrane melt index, the more the glued volume that the glued membrane permeates 3 insides, can make the whole bending strength of wallboard promote after the hot pressing, but glued membrane melt index is too big, can influence wall cloth 1 surface and close the outsidely, the problem such as oozing glue appears, seriously influences the appearance. Comprehensive analysis shows that the melt index of the selected adhesive film is more suitable to be 3-40 g/10 min.
Example 3
Preferably 150g/m2Wall cloth 1, 65g/m2EVA melt-blown film (melt index is 30g/10min), 1600g/m2Of 3, 50g/m2The non-woven fabric 4 is used as a raw and auxiliary material of the wallboard.
Wherein the proportion of the polypropylene fiber to the glass fiber of the fiber felt 3 is 25:75, 30:70, 50:50, 70:30 and 75:25 respectively, the fiber felt 3 is baked at 195 ℃, and the concrete steps are as follows: a. sequentially unreeling the wall cloth 1, the adhesive film and the non-woven fabric 4 on an unreeling frame 6 of a compound machine 5; b. the fiber felt is heated through a tunnel oven 7 and conveyed to the middle of the two layers of adhesive films; c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard. The compounding temperature is 160 ℃, the compounding speed is 4.5m/min, the compounding gap is 6.2mm, the gram weight is 1930g/m after hot-pressing compounding under the pressure of 25MPa2The fiber wallboard of (1) was tested for flexural strength and sound absorption properties as shown in table 3.
TABLE 3 comparison of different polypropylene fiber to glass fiber ratios for bending strength and sound absorption performance of fiber wall board
As can be seen from table 3, the ratio of polypropylene to glass fiber increases with increasing values, and the flexural strength of the wallboard increases and then decreases. When the ratio of the polypropylene fibers to the glass fibers is small, the baking and melting amount of the polypropylene fibers and the soaking amount of the glass fibers are relatively reduced, the binding force between the polypropylene fibers and the glass fibers is greatly reduced, and the final mechanical property of the wallboard is reduced; when the ratio of polypropylene to glass fiber is large, although polypropylene is baked and melted to be fully infiltrated with glass fiber, glass fiber is used as a main material for reinforcing the material, and the content of glass fiber is too low, so that the bending strength of the wallboard is reduced. The ratio of polypropylene to glass fiber increases with increasing value, which gradually reduces the sound absorption performance of the wallboard. Inside the fibrofelt 3, the main part that plays the three-dimensional structure effect is glass fiber, and polypropylene fibre plays the effect that bonds between the glass fiber, and along with the increase of the fine proportion of polypropylene fibre and glass, the final fibreboard is inside the space of three-dimensional structure less, influences the sound wave and absorbs. Comprehensive analysis shows that the ratio of polypropylene fibers to glass fibers is 30: 70-70: 30, so that the strength of the wallboard can be guaranteed, and the excellent sound absorption performance of the wallboard can be reflected.
Example 4
Preferably 140g/m2Wall cloth 1, 70g/m2PA Silk screen film (melt index 20g/10min), 1470g/m2Of (3) (the ratio of polypropylene to glass fiber is 50:50), 50g/m2The non-woven fabric 4 is used as a raw and auxiliary material of the wallboard. The fiber felt 3 is baked at 205 ℃, and the specific steps are as follows: a. sequentially unreeling the wall cloth 1, the adhesive film and the non-woven fabric 4 on an unreeling frame 6 of a compound machine 5; b. the fiber felt is heated through a tunnel oven 7 and conveyed to the middle of the two layers of adhesive films; c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard. . The compounding temperature is 150 ℃, the compounding speed is 5m/min, the compounding gap is 6.0mm, the pressure is 25MPa, and the gram weight is 1800g/m after hot-pressing compounding2And 6.0mm thick fiber wall board.
Comparative example 1
Selecting a bamboo-wood fiber wallboard with the thickness of 6.0mm, a solid wood wallboard with the thickness of 6.0mm and a PET sound absorption wallboard with the thickness of 6.0mm on the market, and respectively testing and comparing the quality, the sound absorption and the bending angle.
TABLE 4 comparison of different types of wallboard Properties
As can be seen from table 4, the wallboard of the present invention has significant advantages in terms of quality, sound absorption, bending resistance, and bending strength comparable to that of bamboo-wood fiber board and solid wood wallboard; in addition, the wallboard has better toughness, can be bent at a certain angle without breaking, and is convenient to carry, such as places like elevators, stairs and the like. . Compared with a PET sound-absorbing board, the PET sound-absorbing board has obvious mechanical advantages and equivalent sound-absorbing performance; the PET sound-absorbing wallboard has poor bending performance, can be spliced and decorated only in a small area, and has a small application range. Comprehensive analysis shows that the fiber wallboard has the advantages of light weight and sound absorption in the field of wallboards, can reduce and absorb more than 50% of noise compared with the wallboard on the market at present, and has light weight and strong competitiveness.
Example 5
Preferably 200g/m2Wall cloth 1, 50g/m2PE silk screen film (melt index is 30g/10min), 1300g/m250g/m (ratio of polypropylene to glass fiber 40:60)2The non-woven fabric 4 is used as a raw and auxiliary material of the wallboard. The fiber felt 3 is baked at 205 ℃, and the specific steps are as follows: a. sequentially unreeling the wall cloth 1, the adhesive film and the non-woven fabric 4 on an unreeling frame 6 of a compound machine 5; b. the fiber felt is heated through a tunnel oven 7 and conveyed to the middle of the two layers of adhesive films; c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard. The compounding temperature is 150 ℃, the compounding speed is 5m/min, and the gram weight is 1650g/m after hot-pressing compounding under the pressure of 30MPa in a certain compounding clearance2。
The composite gaps were set to 4.0, 4.5, 6.0, 8.0, 8.5mm, respectively, to obtain fiber wallboards of corresponding thickness, respectively, and the flexural strength and sound absorption coefficient were tested, as shown in table 5.
TABLE 5 impact of different thickness fiber wallboard on bending strength and sound absorption
From table 5, the influence of the fiber wall boards with different thicknesses on the bending strength and sound absorption is seen, the thinner the thickness is pressed, the better the bending strength of the wall board is, and the sound absorption performance is reduced; the larger the thickness, the poorer the bending strength, and the better the sound absorption performance. Comprehensive analysis shows that the composite gap is between 4.5 and 8.0.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the core technical features of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a high sound fibre wallboard that inhales of light, its characterized in that, fibre wallboard be from the top down be wall cloth (1), glued membrane, fibrofelt (3), glued membrane, non-woven fabrics (4) structure in proper order.
2. The lightweight high sound absorption fiber wallboard according to claim 1, characterized in that the adhesive film is a thermoplastic hot melt adhesive film (2) which is one or more of PE, PP, EVA, PES, and PA blended, and the mass per unit area is 30-70 g.
3. The wallboard of claim 2, wherein the hot melt adhesive film (2) is one of perforated film, silk screen film, melt blown film; the melt index is 3-40 g/10 min.
4. The wallboard of claim 1, wherein the fiber mat (3) is composed of PP fiber and glass fiber in a ratio of 30: 70-70: 30, and has a mass per unit area of 1000-1700 g.
5. The wallboard of claim 1, 2, 3 or 4, wherein the flow resistance of the wall cloth (1) and the non-woven fabric (4) is less than 0.03 Pa-s/m 3, the mass of the wall cloth (1) per unit area is 100-300 g, and the mass of the non-woven fabric (4) per unit area is 20-50 g.
6. A method for preparing the lightweight high-sound-absorption fiber wallboard as claimed in claim 1, 2, 3 or 4, is characterized by comprising the following steps:
a. sequentially unreeling the wall cloth (1), the adhesive film and the non-woven fabric (4) on an unreeling frame (6) of a compound machine (5);
b. the fiber felt (3) is heated through a tunnel oven (7) and conveyed to the middle of the two layers of adhesive films;
c. and (3) performing hot rolling compounding at certain temperature, clearance and pressure to obtain the wallboard.
7. The method for preparing the lightweight high acoustical fiber wallboard as claimed in claim 6, wherein the hot rolling temperature is between 130 ℃ and 170 ℃.
8. The method for preparing the light high sound absorption fiber wallboard as claimed in claim 6, wherein the heating temperature of the tunnel oven (7) is between 180 ℃ and 210 ℃, and the compounding speed is between 3 m/min and 8 m/min.
9. The method for preparing the lightweight high sound absorption fiber wallboard according to claim 6, wherein the hot pressing gap is between 4.5 mm and 8mm, and the pressure is between 5MPa and 50 MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793286A (en) * | 2020-12-31 | 2021-05-14 | 浙江晶通塑胶有限公司 | Production method of flame-retardant PE wallboard |
| CN113969112A (en) * | 2021-10-14 | 2022-01-25 | 绍兴众心智能家居有限公司 | Seamless wall cloth and preparation process and construction process thereof |
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| CN109823012A (en) * | 2018-12-29 | 2019-05-31 | 浙江华江科技股份有限公司 | Ultralight high sound-absorbing GMT enhancing PU Thermoplastic Automotive interior decorative composite board of one kind and preparation method thereof |
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| KR20100003862A (en) * | 2008-07-02 | 2010-01-12 | 장관영 | Outerior panel for the building wall having insulating function |
| CN103928022A (en) * | 2013-01-10 | 2014-07-16 | 滁州格美特科技有限公司 | Thermoplastic sound absorption board and manufacturing method thereof |
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| CN109457883A (en) * | 2018-11-07 | 2019-03-12 | 上海圣峰建材科技股份有限公司 | Lightweight wall plate and preparation method thereof |
| CN109823012A (en) * | 2018-12-29 | 2019-05-31 | 浙江华江科技股份有限公司 | Ultralight high sound-absorbing GMT enhancing PU Thermoplastic Automotive interior decorative composite board of one kind and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793286A (en) * | 2020-12-31 | 2021-05-14 | 浙江晶通塑胶有限公司 | Production method of flame-retardant PE wallboard |
| CN112793286B (en) * | 2020-12-31 | 2023-11-07 | 浙江晶通新材料集团有限公司 | Production method of flame-retardant PE wallboard |
| CN113969112A (en) * | 2021-10-14 | 2022-01-25 | 绍兴众心智能家居有限公司 | Seamless wall cloth and preparation process and construction process thereof |
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Application publication date: 20200417 |