CN111605268A - Production process of alkali-free glass fiber cloth - Google Patents

Production process of alkali-free glass fiber cloth Download PDF

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Publication number
CN111605268A
CN111605268A CN202010445132.0A CN202010445132A CN111605268A CN 111605268 A CN111605268 A CN 111605268A CN 202010445132 A CN202010445132 A CN 202010445132A CN 111605268 A CN111605268 A CN 111605268A
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China
Prior art keywords
glass fiber
fiber cloth
alkali
drying
free glass
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CN202010445132.0A
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Chinese (zh)
Inventor
缪童宇
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Rudong Tiancheng Glass Fiber Co ltd
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Rudong Tiancheng Glass Fiber Co ltd
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Priority to CN202010445132.0A priority Critical patent/CN111605268A/en
Publication of CN111605268A publication Critical patent/CN111605268A/en
Pending legal-status Critical Current

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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
    • B32B5/024—Woven fabric
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • 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
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B32B2038/166—Removing moisture
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

The invention discloses a production process of alkali-free glass fiber cloth, which comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surface of the fiber, carrying out wire drawing treatment on the fiber by a wire drawing machine, drying the fiber after the wire drawing treatment, generating water vapor, twisting the fiber after the drying, flatly weaving the filaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fiber in slurry to obtain preformed glass fiber cloth, carrying out parallel bundling on the glass fiber filaments to obtain protofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing with water, and drying to obtain the alkali-free glass fiber cloth. The process can effectively improve the surface activity, temperature resistance, acid and alkali resistance and porous structure of the glass fiber cloth.

Description

Production process of alkali-free glass fiber cloth
Technical Field
The invention relates to a production process of alkali-free glass fiber cloth.
Background
The glass fiber cloth has the advantages of high temperature resistance, ablation resistance, heat insulation, fire prevention and the like, and has stable thermal performance and dielectric performance at higher temperature.
The glass fiber product is as same as glass, and is brittle and easy to break; moreover, the wear resistance is poor, and the wear is easily damaged after long-term use, and once a sharp object scratches the surface of the object, irreparable wear is caused. The adhesion of the photocatalyst on the surface of the glass fiber cloth is usually improved by means of an auxiliary adhesive, so that the activity of the photocatalyst is reduced, and the photocatalytic effect is influenced.
Therefore, the production process of the alkali-free glass cloth needs to be improved to manufacture the glass fiber cloth with higher hardness and excellent waterproof performance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a production process of alkali-free glass fiber cloth, and the alkali-free glass fiber cloth with higher hardness and excellent waterproof performance is manufactured.
The invention provides the following technical scheme:
the invention relates to a production process of alkali-free glass fiber cloth, which comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surfaces of fibers, carrying out wire drawing treatment on the fibers by a wire drawing machine, drying the fibers after the wire drawing treatment, generating water vapor, twisting the fibers after the drying, packaging the fibers after the twisting to form alkali-free glass fiber yarn finished products, flatly weaving monofilaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fibers in slurry to obtain preformed glass fiber cloth, obtaining protofilaments by parallelly bundling the glass fiber monofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing the base material, and drying to obtain the alkali-free glass fiber cloth.
The first heat treatment process: the glass fiber cloth is subjected to heat preservation for 40-60 min at the temperature of 460-500 ℃;
and (3) acid treatment in the second step: soaking the glass fiber cloth in a mixed solution of hydrochloric acid and nitric acid at the temperature of 92-100 ℃ for 1-2 hours;
thirdly, washing and drying: and (3) carrying out primary heating of the washed glass fiber cloth at 100-120 ℃ and secondary heating at 120-140 ℃ by virtue of a drying and sintering integrated furnace, removing water, and sintering and shaping to obtain the alkali-free glass cloth.
Further, the slurry contains a synthetic resin emulsion and hollow glass beads.
Compared with the prior art, the invention has the beneficial effects that: the pretreated glass fiber cloth prepared by the glass fiber pretreatment process of the invention comprises the following steps: 1) the original smooth fiber is changed into porous structure fiber with the aperture of 10-20 mu m; 2) the specific surface area of the fiber is 10-20 of the original2The/g is increased to 70m2More than g, thereby greatly improving the surface activity of the fiber; 3) greatly improves the temperature resistance (temperature resistance over 1000 ℃) and chemical stability of the glass fiber cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention relates to a production process of alkali-free glass fiber cloth, which comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surfaces of fibers, carrying out wire drawing treatment on the fibers by a wire drawing machine, drying the fibers after the wire drawing treatment, generating water vapor, twisting the fibers after the drying, packaging the fibers after the twisting to form alkali-free glass fiber yarn finished products, flatly weaving monofilaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fibers in slurry to obtain preformed glass fiber cloth, obtaining protofilaments by parallelly bundling the glass fiber monofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing the base material, and drying to obtain the alkali-free glass fiber cloth.
The first heat treatment process: keeping the temperature of the glass fiber cloth at 460 ℃ for 40 min;
and (3) acid treatment in the second step: soaking the glass fiber cloth in a mixed solution of hydrochloric acid and nitric acid at the temperature of 92 ℃ for 1 hour;
thirdly, washing and drying: and (3) carrying out primary heating of the washed glass fiber cloth by a drying and sintering integrated furnace at 100 ℃ and secondary heating at 120 ℃, removing water, and sintering and shaping to obtain the alkali-free glass cloth.
Product performance analysis results: the average pore diameter of the porous structure is 14.5 mu m; specific surface area 101m2(ii)/g; can resist the temperature of more than 1000 ℃.
Example 2
The invention relates to a production process of alkali-free glass fiber cloth, which comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surfaces of fibers, carrying out wire drawing treatment on the fibers by a wire drawing machine, drying the fibers after the wire drawing treatment, generating water vapor, twisting the fibers after the drying, packaging the fibers after the twisting to form alkali-free glass fiber yarn finished products, flatly weaving monofilaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fibers in slurry to obtain preformed glass fiber cloth, obtaining protofilaments by parallelly bundling the glass fiber monofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing the base material, and drying to obtain the alkali-free glass fiber cloth.
The first heat treatment process: keeping the temperature of the glass fiber cloth at 480 ℃ for 50 min;
and (3) acid treatment in the second step: soaking the glass fiber cloth in a mixed solution of hydrochloric acid and nitric acid at the temperature of 97 ℃ for 1.5 hours;
thirdly, washing and drying: and (3) carrying out primary heating up to 110 ℃ and secondary heating up to 130 ℃ by using the washed glass fiber cloth through a drying and sintering integrated furnace, removing water, and sintering and shaping to obtain the alkali-free glass cloth.
Product performance analysis results: the average pore diameter of the porous structure is 17.2 mu m; specific surface area 102m2(ii)/g; can resist the temperature of more than 1000 ℃.
Example 3
The invention relates to a production process of alkali-free glass fiber cloth, which comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surfaces of fibers, carrying out wire drawing treatment on the fibers by a wire drawing machine, drying the fibers after the wire drawing treatment, generating water vapor, twisting the fibers after the drying, packaging the fibers after the twisting to form alkali-free glass fiber yarn finished products, flatly weaving monofilaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fibers in slurry to obtain preformed glass fiber cloth, obtaining protofilaments by parallelly bundling the glass fiber monofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing the base material, and drying to obtain the alkali-free glass fiber cloth.
The first heat treatment process: keeping the temperature of the glass fiber cloth at 500 ℃ for 60 min;
and (3) acid treatment in the second step: soaking the glass fiber cloth in a mixed solution of hydrochloric acid and nitric acid at 100 ℃ for 2 hours;
thirdly, washing and drying: and (3) carrying out primary heating up to 120 ℃ and secondary heating up to 140 ℃ by the dried and sintered integrated furnace on the washed glass fiber cloth, removing water, and sintering and shaping to obtain the alkali-free glass cloth.
The slurry contains synthetic resin emulsion and hollow glass beads.
Product performance analysis results: the average pore diameter of the porous structure is 19.3 mu m; specific surface area 97.5m2(ii)/g; can resist the temperature of more than 1000 ℃.
The hollow glass beads are added in the slurry formula, so that the surface of the prepared glass fiber cloth product is uniformly coated with a layer of coating containing the hollow glass beads, and the waterproof performance of the product is enhanced.
The original one-time heating is changed into two-time heating step by step, so that the treatment is more perfect, and the treated product has the advantages of smooth appearance, uniform color and smooth and soft surface.
The pretreated glass fiber cloth prepared by the glass fiber pretreatment process of the invention comprises the following steps: 1) The original smooth fiber is changed into porous structure fiber with the aperture of 10-20 mu m; 2) the specific surface area of the fiber is 10-20 of the original2The/g is increased to 70m2More than g, thereby greatly improving the surface activity of the fiber; 3) greatly improves the temperature resistance (temperature resistance over 1000 ℃) and chemical stability of the glass fiber cloth.
The process can effectively improve the surface activity, temperature resistance, acid and alkali resistance and porous structure of the glass fiber cloth.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A production process of alkali-free glass fiber cloth is characterized by comprising the following steps: the method comprises the following steps: adding alkali-free glass balls into a melting furnace through a ball adding machine for melting, adding a lubricant and water, coating an impregnating compound on the surface of the fiber, carrying out wire drawing treatment on the fiber by a wire drawing machine, drying the fiber after the wire drawing treatment, generating water vapor, twisting the fiber after the drying, flatly weaving the filaments after the twisting to obtain basic glass fiber cloth, arranging the basic glass fiber in slurry to obtain preformed glass fiber cloth, carrying out parallel bundling on the glass fiber filaments to obtain protofilaments, cutting the protofilaments, randomly and uniformly laying the protofilaments on the preformed glass fiber cloth, coating a binder, heating and curing to obtain a base material, carrying out heat treatment and acid treatment on the base material, washing with water, and drying to obtain the alkali-free glass fiber cloth.
2. The alkali-free glass fiber cloth production process according to claim 1, characterized in that:
the first heat treatment process: the glass fiber cloth is subjected to heat preservation for 40-60 min at the temperature of 460-500 ℃;
and (3) acid treatment in the second step: soaking the glass fiber cloth in a mixed solution of hydrochloric acid and nitric acid at the temperature of 92-100 ℃ for 1-2 hours;
thirdly, washing and drying: and (3) carrying out primary heating of the washed glass fiber cloth at 100-120 ℃ and secondary heating at 120-140 ℃ by virtue of a drying and sintering integrated furnace, removing water, and sintering and shaping to obtain the alkali-free glass cloth.
3. The alkali-free glass fiber cloth production process according to claim 1, characterized in that: the slurry contains synthetic resin emulsion and hollow glass beads.
CN202010445132.0A 2020-05-23 2020-05-23 Production process of alkali-free glass fiber cloth Pending CN111605268A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112551895A (en) * 2020-12-11 2021-03-26 九江鑫星玻纤材料有限公司 Alkali-free glass fiber cloth for cable
CN112708983A (en) * 2021-01-13 2021-04-27 单县鑫誉玻璃纤维复合材料有限公司 Production method of glass fiber mesh cloth
CN112796116A (en) * 2020-12-21 2021-05-14 扬州润艳轩科技有限责任公司 Production process of food-grade silica gel glass fiber reinforced baking pad
CN114835410A (en) * 2022-05-31 2022-08-02 西安交通大学 Method for screening and drying process through dye visualization glass fiber impregnating agent migration degree

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Publication number Priority date Publication date Assignee Title
CN112551895A (en) * 2020-12-11 2021-03-26 九江鑫星玻纤材料有限公司 Alkali-free glass fiber cloth for cable
CN112796116A (en) * 2020-12-21 2021-05-14 扬州润艳轩科技有限责任公司 Production process of food-grade silica gel glass fiber reinforced baking pad
CN112708983A (en) * 2021-01-13 2021-04-27 单县鑫誉玻璃纤维复合材料有限公司 Production method of glass fiber mesh cloth
CN114835410A (en) * 2022-05-31 2022-08-02 西安交通大学 Method for screening and drying process through dye visualization glass fiber impregnating agent migration degree
CN114835410B (en) * 2022-05-31 2023-02-28 西安交通大学 Method for screening and drying process through dye visualization glass fiber impregnating agent migration degree

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