CN111074425A - Preparation method of high-drainage sound-insulation heat-insulation glass fiber cotton felt and product - Google Patents

Preparation method of high-drainage sound-insulation heat-insulation glass fiber cotton felt and product Download PDF

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Publication number
CN111074425A
CN111074425A CN201911423565.XA CN201911423565A CN111074425A CN 111074425 A CN111074425 A CN 111074425A CN 201911423565 A CN201911423565 A CN 201911423565A CN 111074425 A CN111074425 A CN 111074425A
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glass fiber
spray
cotton
fiber cotton
iii
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曾影
郭茂
胡州
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CHONGQING ZAISHENG TECHNOLOGY CORP Ltd
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CHONGQING ZAISHENG TECHNOLOGY CORP Ltd
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    • 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
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • 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
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/655—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
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Abstract

The invention relates to a preparation method and a product of a high-drainage sound-insulation heat-insulation glass fiber cotton felt, belonging to the technical field of glass fiber materials. The method specifically comprises the following steps: the glass fiber cotton is sprayed out from a cotton spraying opening and then enters a cotton collecting cover, the adhesive containing the waterproof agent is sprayed in the cotton collecting cover and then falls on a forming mesh belt, and the high-drainage sound-insulation heat-insulation glass fiber cotton felt is prepared after rolling and shaping. According to the invention, the cotton collecting cover with a specific structure is used, so that the adhesive containing the waterproof agent can be uniformly sprayed on the glass fiber cotton, the binding force among glass fibers can be enhanced, the waterproof agent can be uniformly distributed, and the mechanical strength and the drainage property of the glass fiber cotton felt can be improved. The method is simple and easy to operate, has low cost and is suitable for industrial production.

Description

Preparation method of high-drainage sound-insulation heat-insulation glass fiber cotton felt and product
Technical Field
The invention belongs to the technical field of glass fiber materials, and particularly relates to a preparation method and a product of a high-drainage sound-insulation heat-insulation glass fiber cotton felt.
Background
There is a jargon in aircraft manufacturing that: "struggle to reduce each gram of weight". Is a gram weight so important for aircraft moving to tons and tens of tons? The answer is affirmative. "first generation materials, first generation aircraft", the importance of materials to aircraft is in this context felt to the utmost. Since the first powered flight in late brother 1993, the improvement of aircraft materials never stopped for centuries. In the first stage, from 1903 to 10 th 20 th century, the organism material adopts wood and cloth; in the second stage, 20 th to 40 th in the 20 th century, the body begins to be made of aluminum and steel; the fifth stage has been entered so far, using composite materials, aluminum, titanium, etc. However, the common characteristics of the fuselage material are steadily advancing toward high strength and light weight. The lighter weight of the airplane can bring lower oil consumption, higher transportation capacity and a series of green economic benefits. The cabin body of the airplane is provided with a sound-insulation and heat-insulation layer which is mainly made of glass fiber, and the cabin body is widely applied to the high-tech fields of aerospace ships and the like due to the characteristics of light weight, high temperature resistance, corrosion resistance, heat insulation and sound insulation and the like. However, because the surface of the glass fiber has excellent hydrophilic performance, if the surface of the glass fiber meets water in a sound-insulation and heat-insulation layer under special conditions, in order to keep the weight of the airplane body stable, quick drainage needs to be realized, which requires higher drainage performance of the glass fiber cotton, while the drainage performance of the traditional glass fiber cotton can be kept at 250g/m2And the above requirements cannot be well satisfied,therefore, a glass fiber felt for sound insulation and heat insulation with high drainage and a preparation method thereof are urgently needed.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method for preparing a high drainage sound insulation and heat insulation glass fiber cotton felt; the second purpose is to provide a high-drainage sound-insulation heat-insulation glass fiber cotton felt.
In order to achieve the purpose, the invention provides the following technical scheme:
1. a preparation method of a high-drainage sound-insulation heat-insulation glass fiber cotton felt comprises the following steps:
the glass fiber cotton is sprayed out from a cotton spraying opening and then enters a cotton collecting cover, the spraying of an adhesive containing a waterproof agent is completed in the cotton collecting cover, then the glass fiber cotton falls on a forming mesh belt, and the high-drainage sound-insulation heat-insulation glass fiber cotton felt is prepared after rolling and shaping;
the cotton cover of collection is the cavity tetrahedron that encloses by a preceding throwing face, a back throwing face and two sides, preceding throwing face is provided with spray mouth I (1) and spray mouth II (2) along glass fiber cotton whereabouts direction order on the corresponding face of back throwing face, 1/3-2/3 high department is provided with spray mouth III (3) on the corresponding face of back throwing face in the face of back throwing face, the line of spray mouth I (1) and spray mouth III (3) and the contained angle number of degrees that the line of spray mouth II (2) and spray mouth III (3) constitutes are 30-55, spray mouth I (1) sprays after water pressure pressurization, spray mouth II (2) and spray mouth III (3) spray after the wind pressure pressurization, the injection direction of spray mouth I (1) and spray mouth II (2) all with the injection direction of spray mouth III (3) is relative, and the opposite surfaces of the two side surfaces are respectively provided with an air port (4), and the air ports (4) and the spraying ports III (3) are positioned on the same horizontal plane.
Preferably, the spraying direction of the spraying opening III (3) forms an angle of 30-60 degrees with the horizontal line.
Preferably, the spraying port III (3), the spraying port II (2) and each tuyere (4) form an isosceles triangle with each tuyere (4) as a vertex.
Preferably, the spraying port I (1) is atomized and sprayed after being pressurized by water pressure, and the spraying port II (2) and the spraying port III (3) are atomized and sprayed after being pressurized by wind pressure.
Preferably, the spraying port I (1), the spraying port II (2) and the spraying port III (3) are arranged in rows.
Preferably, the row-type spray opening is provided with 2-15 spray nozzles.
Preferably, the cotton spraying port and the spraying port I (1) are separated by 1-10m in the horizontal direction.
Preferably, the pressure during rolling is 5-500 Pa; the temperature for setting is 100-360 ℃.
Preferably, the glass fiber wool has a 95% normal distribution of diameters in the range of 1.0 to 3.0 μm.
Preferably, the glass fiber cotton consists of the following components in percentage by weight, SiO2：54-56wt％，Al2O3：5-7wt％，Na2O：9.5-12wt％，K2O：2-3.5wt％，CaO：2-3.5wt％，MgO：0.05-0.2wt％，ZnO：3.5-4.5wt％，BaO：4.5-5.5wt％，B2O3：10-12wt％，Fe2O3：0.05-0.18wt％。
Preferably, the waterproof agent in the adhesive containing the waterproof agent is one or more of a potassium silicate waterproof agent, an organosilicon emulsion type waterproof agent, an oily waterproof agent, a nano-silicon waterproof agent, a nano-carbon waterproof agent or a halogen waterproof agent, and the waterproof agent accounts for 0.01-10% of the total weight of the glass fiber cotton felt; the adhesive in the adhesive containing the waterproof agent is a water-based adhesive, and the adhesive accounts for 0-20% of the total weight of the glass fiber cotton felt.
Preferably, the water-proofing agent is, but not limited to, at least one of fluorocarbon water-proofing agent, methyl silicone oil water-proofing agent, nano-silicon water-proofing agent or polymethyltriethoxysilane water-proofing agent.
Preferably, the aqueous adhesive is, but not limited to, at least one of acrylic emulsion, styrene-acrylic emulsion, phenolic resin or polyvinyl acetate.
2. The high-drainage sound-insulation heat-insulation glass fiber cotton felt prepared by the method.
The invention has the advantages thatIn the following steps: the invention provides a preparation method and a product of a high-drainage sound-insulation heat-insulation glass fiber cotton felt, wherein a cotton collecting cover with a specific structure is used to ensure that an adhesive containing a waterproof agent can be uniformly sprayed on glass fiber cotton, so that the bonding force among glass fibers can be enhanced, the waterproof agent can be uniformly distributed, the mechanical strength and the drainage property of the glass fiber cotton felt can be improved, and the drainage property of the finally prepared glass fiber cotton felt can be kept at 230g/m2The glass fiber cotton felt has a mechanical strength of more than 0.8N/25mm in the length direction, a mechanical strength of more than 0.5N/25mm in the width direction, a thickness of 5-40mm, a quantitative of 100-2The acoustic performance meets the requirements that the sound transmission loss at 1000Hz is more than 3.5dB, the sound transmission loss at 2000Hz is more than 6dB, the sound transmission loss at 4000Hz is more than 8.5dB, the heat conductivity coefficient is less than 0.035W/m.K, the combustible part of the cotton felt is less than 20 percent of the total mass, and the A-grade flame retardant requirement can be met. Wherein, the cotton collecting cover used in the preparation process is designed according to the falling track of the glass fiber cotton after flying out from the cotton spraying port, which can not only reduce the cotton flying phenomenon, but also keep the most complete fiber length of the cotton, the spray port I1 on the front parabolic surface in the cotton collecting cover is pressurized by water pressure and then atomized and sprayed, the spray port II 2 on the front parabolic surface and the spray port III 3 on the rear parabolic surface are pressurized by wind pressure and then atomized and sprayed, the air ports 4 arranged on the two side surfaces further limit the positions of each air port 4, the spray port III 3 and the spray port II 2, wherein, the spraying directions of the spray port I1 and the spray port II 2 are opposite to the spraying direction of the spray port III 3, and further limit the angle between the three, so the setting is that the spray port II 2 and the spray port III 3 pass through the wind force and are matched with the wind force generated by the air ports 4 arranged on the two side surfaces, the glass fibers dispersed in the cotton collecting cover can be relatively concentrated and fall in a rotating mode, multiple glass fiber bundles can be formed according to the number of the spray nozzles on the spray opening, at the moment, the spray opening I, the spray opening II 2 and the spray opening III 3 are sprayed in an atomizing mode at the same time, the fact that adhesives of water-proofing agents are uniformly distributed on the fiber cotton can be guaranteed, glue points can be formed on fiber cross-linking portions, and it is guaranteed that the upper surface layer, the middle layer and the lower surface layer of the finally prepared glass fiber cotton felt are uniformly distributedThe adhesive of the waterproof agent is applied, so that the high strength of the glass fiber cotton felt is ensured, the glass fiber cotton felt is not easy to break in the later processing process, flying cotton is not easy to cause, and the glass fiber cotton felt has excellent drainage performance, and due to the effects of the spraying opening II 2, the spraying opening III 3 and the two air openings 4, the scattered glass fiber cotton forms glass fiber bundles, the friction force among the glass fiber cotton is increased, and the finally prepared glass fiber cotton felt can be ensured to have excellent mechanical performance even under the condition that the content of the adhesive is 0. In addition, the two side surfaces of the cotton collecting cover are provided with the air ports 4, the positions of the air ports 4, the spraying ports III 3 and the spraying ports II 2 are further limited, the fibers in the cotton collecting cover can be ensured to fall on a forming net with the same probability and can be uniformly distributed on the forming net, the sound and heat insulation performance of the glass fiber cotton felt is directly influenced due to the uniformity of the pore structure, and when the glass fibers with the same fiber diameter range form a uniform layered structure, the uniform pore structure can be formed, so that the sound and heat insulation performance of the finally prepared glass fiber cotton felt is improved. The method is simple and easy to operate, has low cost and is suitable for industrial production.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a perspective view of a condenser cover according to the present invention;
FIG. 2 is a schematic top view of a condenser cover according to the present invention;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 1.
Reference numerals: spraying port I1, spraying port II 2, spraying port III 3 and tuyere 4.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The drainage performance in the embodiments 1 to 3 means that the glass fiber cotton felt is put into water with the temperature of 21 +/-5 ℃, kept standing for 5-25min at the position which is 115 mm away from the horizontal plane and 135mm away from the horizontal plane, and then vertically hung for 60 +/-5 s, and the water content of the cotton felt in unit area is calculated to be the drainage index.
Schematic views of the condenser covers used in examples 1 to 3 are shown in fig. 1, 2 and 3.
Example 1
Preparation of high-drainage sound-insulation heat-insulation glass fiber cotton felt
The glass fiber cotton enters the cotton collecting cover after being sprayed out from the cotton spraying port, the cotton spraying port is 10m away from a spraying port I1 arranged in the cotton collecting cover in the horizontal direction, an adhesive containing a waterproof agent is sprayed in the cotton collecting cover according to the weight of the waterproof agent accounting for 10% of the total weight of the glass fiber cotton felt and accounting for 0% of the total weight of the glass fiber cotton felt, the sprayed adhesive falls on a forming mesh belt, and the forming mesh belt is shaped at 280 ℃ after being rolled under 50Pa to prepare the high-drainage sound-insulation heat-insulation glass fiber cotton felt, wherein:
the glass fiber cotton with the diameter of 95 percent normally distributed in the range of 1.0 to 3.0 mu m consists of the following components in percentage by weight, SiO2：55.5wt％，Al2O3：6.7wt％，Na2O：9.57wt％，K2O：3.2wt％，CaO：3.5wt％，MgO：0.05wt％，ZnO：4.5wt％，BaO：4.8wt％，B2O3：12wt％，Fe2O3：0.18wt％；
The adhesive containing the waterproof agent is a fluorocarbon waterproof agent;
the cotton collecting cover is a hollow tetrahedron enclosed by a front polished surface, a rear polished surface and two side surfaces, a spray port I1 and a spray port II 2 are sequentially arranged on the corresponding surface of the front polished surface facing the rear polished surface along the falling direction of the glass fiber cotton, a spray port III 3 is arranged at the 1/2 height position on the corresponding surface of the rear polished surface facing the front polished surface, the included angle formed by the connecting line of the spray port I1 and the spray port III 3 and the connecting line of the spray port II 2 and the spray port III 3 is 45 degrees, the included angle formed by the spray direction of the spray port III 3 and the horizontal line is 30 degrees, the spray port I1 is atomized and sprayed after being pressurized by water pressure, the spray port II 2 and the spray port III 3 are atomized and sprayed after being pressurized by wind pressure, the spray directions of the spray port I1 and the spray port II 2 are both opposite to the spray direction of the spray port III 3, the opposite surfaces of the two side surfaces are respectively provided with a wind port 4, and the wind port 4 and the spray port, and the spray opening III 3, the spray opening II 2 and each air opening 4 form an isosceles triangle with each air opening 4 as a vertex, and the spray opening I1, the spray opening II 2 and the spray opening III 3 are row-type spray openings with 15 nozzles.
The drainage performance of the prepared high-drainage sound-insulation heat-insulation glass fiber cotton felt is 103g/m2The mechanical strength in the longitudinal direction was 6N/25mm, the mechanical strength in the width direction was 2.2N/25mm, the thickness was 15mm, and the basis weight was 150g/m2The acoustic performance satisfies the acoustic transmission loss of 6.3dB at 1000Hz, 9dB at 2000Hz, 13dB at 4000Hz and the heat conductivity of 0.033W/m.K.
Example 2
Preparation of high-drainage sound-insulation heat-insulation glass fiber cotton felt
The glass fiber cotton enters the cotton collecting cover after being sprayed out from the cotton spraying port, the distance between the cotton spraying port and a spraying port I1 arranged in the cotton collecting cover is 8m in the horizontal direction, an adhesive containing a waterproof agent is sprayed in the cotton collecting cover according to the weight of the waterproof agent accounting for 8% of the total weight of the glass fiber cotton felt and accounting for 10% of the total weight of the glass fiber cotton felt, the adhesive falls on a forming mesh belt after being sprayed, and is shaped at 360 ℃ after being rolled under 200Pa to prepare the high-drainage sound-insulation heat-insulation glass fiber cotton felt, wherein:
the glass fiber cotton with the diameter of 95 percent normally distributed in the range of 1.0 to 3.0 mu m consists of the following components in percentage by weight, SiO2：56wt％，Al2O3：5.35wt％，Na2O：12wt％，K2O：3wt％，CaO：3wt％，MgO：0.1wt％，ZnO：4wt％，BaO：5.5wt％，B2O3：11wt％，Fe2O3：0.05wt％；
The waterproofing agent in the adhesive containing the waterproofing agent is methyl silicone oil waterproofing agent, and the adhesive in the adhesive containing the waterproofing agent is acrylic emulsion;
the condenser cover used was the condenser cover of example 1.
The drainage performance of the prepared high-drainage sound-insulation heat-insulation glass fiber cotton felt is 230g/m2A mechanical strength in the longitudinal direction of 9N/25mm, a mechanical strength in the width direction of 3.9N/25mm, a thickness of 26mm, and a basis weight of 210g/m2The acoustic performance satisfies the sound transmission loss of 10dB at 1000Hz, 16.8dB at 2000Hz, 23dB at 4000Hz and 0.032W/m.K.
Example 3
Preparation of high-drainage sound-insulation heat-insulation glass fiber cotton felt
The glass fiber cotton enters the cotton collecting cover after being sprayed out from the cotton spraying port, the distance between the cotton spraying port and a spraying port I1 arranged in the cotton collecting cover is 6m in the horizontal direction, an adhesive containing a waterproof agent is sprayed in the cotton collecting cover according to the weight of the waterproof agent accounting for 2% of the total weight of the glass fiber cotton felt and the weight of the adhesive accounting for 18% of the total weight of the glass fiber cotton felt, the sprayed adhesive falls on a forming mesh belt, and the forming mesh belt is shaped at 300 ℃ after being rolled under 400Pa to prepare the high-drainage sound-insulation heat-insulation glass fiber cotton felt, wherein:
the glass fiber cotton with the diameter of 95 percent normally distributed in the range of 1.0 to 3.0 mu m consists of the following components in percentage by weight, SiO2：55.2wt％，Al2O3：7wt％，Na2O：12wt％，K2O：3.5wt％，CaO：2.5wt％，MgO：0.2wt％，ZnO：3.5wt％，BaO：5wt％，B2O3：11wt％，Fe2O3：0.1wt％；
The adhesive containing the waterproof agent comprises a nano silicon waterproof agent and a fluorocarbon waterproof agent, and the adhesive containing the waterproof agent comprises phenolic resin and polyvinyl acetate;
the condenser cover used was the condenser cover of example 1.
The drainage performance of the prepared high-drainage sound-insulation heat-insulation glass fiber cotton felt is 60g/m2The mechanical strength in the longitudinal direction was 10N/25mm, the mechanical strength in the width direction was 5.5N/25mm, the thickness was 32mm, and the basis weight was 280g/m2The acoustic performance satisfies the acoustic transmission loss of 13dB at 1000Hz, 17.5dB at 2000Hz, 26.8dB at 4000Hz and the heat conductivity of 0.032W/m.K.
In the invention, the spray opening III 3 is positioned at any position of the height of the rear paraboloid 1/3-2/3, the included angle formed by the connecting line of the spray opening I1 and the spray opening III 3 and the connecting line of the spray opening II 2 and the spray opening III 3 is any angle within the range of 30-55 degrees, the spray direction of the spray opening III 3 and the horizontal line is any angle within the range of 30-60 degrees, the number of nozzles on the row-type spray opening is any integer from 2-15, and the cotton collecting cover formed by combining all factors can realize the function of the invention.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. A preparation method of a high-drainage sound-insulation heat-insulation glass fiber cotton felt is characterized by comprising the following steps:
the glass fiber cotton is sprayed out from a cotton spraying opening and then enters a cotton collecting cover, the spraying of an adhesive containing a waterproof agent is completed in the cotton collecting cover, then the glass fiber cotton falls on a forming mesh belt, and the high-drainage sound-insulation heat-insulation glass fiber cotton felt is prepared after rolling and shaping;
the cotton cover of collection is the cavity tetrahedron that encloses by a preceding throwing face, a back throwing face and two sides, preceding throwing face is provided with spray mouth I (1) and spray mouth II (2) along glass fiber cotton whereabouts direction order on the corresponding face of back throwing face, 1/3-2/3 high department is provided with spray mouth III (3) on the corresponding face of back throwing face in the face of back throwing face, the line of spray mouth I (1) and spray mouth III (3) and the contained angle number of degrees that the line of spray mouth II (2) and spray mouth III (3) constitutes are 30-55, spray mouth I (1) sprays after water pressure pressurization, spray mouth II (2) and spray mouth III (3) spray after the wind pressure pressurization, the injection direction of spray mouth I (1) and spray mouth II (2) all with the injection direction of spray mouth III (3) is relative, and the opposite surfaces of the two side surfaces are respectively provided with an air port (4), and the air ports (4) and the spraying ports III (3) are positioned on the same horizontal plane.
2. The method according to claim 1, characterized in that the spraying direction of the spray openings iii (3) is at an angle of 30-60 ° to the horizontal.
3. The method according to claim 1, wherein the spray port iii (3), the spray port ii (2) and each tuyere (4) form an isosceles triangle having each tuyere (4) as an apex.
4. The method as claimed in claim 1, wherein the spray port i (1) is pressurized by water pressure and then atomized and sprayed, and the spray port ii (2) and the spray port iii (3) are pressurized by wind pressure and then atomized and sprayed.
5. The method of claim 1, wherein the spray port i (1), spray port ii (2), and spray port iii (3) are row-wise spray ports.
6. The method as claimed in any of claims 1 to 5, characterized in that the cotton-spraying opening is horizontally spaced from the spraying opening I (1) by 1 to 10 m.
7. The method according to any one of claims 1 to 5, wherein the pressure at the rolling is 5 to 500 Pa; the temperature for setting is 100-360 ℃.
8. The method of any one of claims 1-5, wherein the glass fiber wool has a 95% normal distribution of diameters in the range of 1.0 μm to 3.0 μm.
9. The method as claimed in any one of claims 1 to 5, wherein the water-proofing agent in the adhesive containing the water-proofing agent is one or more of a potassium silicate water-proofing agent, an organosilicon emulsion water-proofing agent, an oily water-proofing agent, a nano-silicon water-proofing agent, a nano-carbon water-proofing agent or a halogen water-proofing agent, and the water-proofing agent accounts for 0.01 to 10 percent of the total weight of the glass fiber cotton felt; the adhesive in the adhesive containing the waterproof agent is a water-based adhesive, and the adhesive accounts for 0-20% of the total weight of the glass fiber cotton felt.
10. A high drainage acoustic and thermal insulating glass fiber batt prepared by the method of any of claims 1-9.
CN201911423565.XA 2019-12-31 2019-12-31 Preparation method of high-drainage sound-insulation heat-insulation glass fiber cotton felt and product Withdrawn CN111074425A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001444A1 (en) * 1991-07-02 1993-01-21 Aktiebolaget Electrolux A method and a device for applying of an insulating layer on a surface of an object
CN104220661A (en) * 2011-12-30 2014-12-17 3M创新有限公司 Apparatus and methods for producing nonwoven fibrous webs
CN104746235A (en) * 2015-03-24 2015-07-01 南京航空航天大学 Low-density sound and heat insulation glass filter cotton felt and manufacturing method thereof
CN204849269U (en) * 2015-07-24 2015-12-09 北京东华绿源建筑装饰工程技术有限公司 Rock wool production is with cotton felt mechanism of spreading of collection
CN204959115U (en) * 2015-07-21 2016-01-13 江苏宏泰纤维科技有限公司 Polyester fiber production preshrunk gathers and sprays condensation ware
CN109956708A (en) * 2019-04-15 2019-07-02 宣汉正原微玻纤有限公司 A kind of dedicated sound insulation of aviation, heat-protecting glass fibrous composite and preparation method thereof
CN209236599U (en) * 2018-06-13 2019-08-13 江苏金卫机械设备有限公司 A kind of assembly drum of fast changeable module

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001444A1 (en) * 1991-07-02 1993-01-21 Aktiebolaget Electrolux A method and a device for applying of an insulating layer on a surface of an object
CN104220661A (en) * 2011-12-30 2014-12-17 3M创新有限公司 Apparatus and methods for producing nonwoven fibrous webs
CN104746235A (en) * 2015-03-24 2015-07-01 南京航空航天大学 Low-density sound and heat insulation glass filter cotton felt and manufacturing method thereof
CN204959115U (en) * 2015-07-21 2016-01-13 江苏宏泰纤维科技有限公司 Polyester fiber production preshrunk gathers and sprays condensation ware
CN204849269U (en) * 2015-07-24 2015-12-09 北京东华绿源建筑装饰工程技术有限公司 Rock wool production is with cotton felt mechanism of spreading of collection
CN209236599U (en) * 2018-06-13 2019-08-13 江苏金卫机械设备有限公司 A kind of assembly drum of fast changeable module
CN109956708A (en) * 2019-04-15 2019-07-02 宣汉正原微玻纤有限公司 A kind of dedicated sound insulation of aviation, heat-protecting glass fibrous composite and preparation method thereof

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Application publication date: 20200428