CN113445174A - Preparation process of glass fiber cloth for high-end machine-made FRP (fiber reinforced Plastic) large plate - Google Patents
Preparation process of glass fiber cloth for high-end machine-made FRP (fiber reinforced Plastic) large plate Download PDFInfo
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- CN113445174A CN113445174A CN202110676256.4A CN202110676256A CN113445174A CN 113445174 A CN113445174 A CN 113445174A CN 202110676256 A CN202110676256 A CN 202110676256A CN 113445174 A CN113445174 A CN 113445174A
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- cloth
- glass fiber
- fiber cloth
- withdrawing
- compression roller
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/267—Glass
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/60—Construction or operation of slay
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- 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
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- 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
- D06B15/09—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by jets of gases
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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- 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
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Reinforced Plastic Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a preparation process of glass fiber cloth for a high-end machine-made FRP (fiber reinforced plastic) large flat plate, which relates to the technical field of glass fiber cloth. The prepared glass fiber cloth has the advantages of good surface smoothness, quick soaking, difficult unwinding deformation and the like, and the FRP large flat plate obtained by adopting the glass fiber cloth has the advantages of light weight, high strength, corrosion resistance, good weather resistance, excellent impact property, good thermal insulation property, cleaning resistance, rich colors and the like, and is widely applied to special boxes such as motor homes, passenger cars, trucks, cold chain transport vehicles, containers, square cabins and the like.
Description
Technical Field
The invention relates to the technical field of glass fiber cloth, in particular to a preparation process of glass fiber cloth for a high-end machine-made FRP (fiber reinforced plastic) large plate.
Background
The machine-made FRP large plate is characterized in that gel coat resin is uniformly coated on a polyester film, a layer of resin is uniformly coated on the basis, glass fiber cloth and a chopped strand mat are laid on the film containing the resin according to the requirement of thickness design, the glass fiber cloth and the chopped strand mat are subjected to reverse infiltration impregnation by rolling of a compression roller, a layer of polyester film is covered on the glass fiber cloth and the chopped strand mat, and the glass fiber cloth and the chopped strand mat are wound into the FRP flat plate coiled material after being cured by a heating device.
Along with the expansion of the application field and the improvement of the living standard of people, higher requirements are put forward on a large machine-made plate, such as higher soaking rate, so that the production efficiency is improved, the finished product is free from coating, the production cost is reduced, the higher surface flatness and the refractive index are consistent, and the like, and high-end special glass fiber cloth needs to be developed to meet the requirements of market development.
Due to the wire drawing process, glass fiber can only adopt an inner back mode when glass fiber cloth is generally woven by twistless roving, and the inner back can form twisting phenomenon in the weaving process, thereby influencing the flatness of the cloth cover. On the other hand, in the fiber forming process, the width of the fiber cannot be accurately controlled, so that the thickness of the fiber is inconsistent, and the flatness of the cloth cover is directly influenced. The glass fiber cloth produced by the existing process can not meet the production process requirements of high-end FRP large flat plates due to all the factors.
Disclosure of Invention
The invention aims to provide a preparation process of glass fiber cloth for a high-end machine-made FRP (fiber reinforced plastic) large flat plate, aiming at the defects and defects of the prior art, the prepared glass fiber cloth has the advantages of good surface smoothness, quick permeation, difficult deformation in unreeling and the like, and the FRP large flat plate obtained by adopting the glass fiber cloth has the advantages of light weight, high strength, corrosion resistance, good weather resistance, excellent impact property, good thermal insulation property, cleaning resistance, rich colors and the like, and is widely applied to special boxes such as motor homes, passenger cars, trucks, cold chain transport vehicles (refrigerated insulation vehicles), containers, square cabins (communication and medical treatment) and the like.
In order to achieve the purpose, the invention adopts the following technical scheme: the preparation method comprises the following steps:
step 1, preparing glass fiber twistless roving:
when drawing glass fiber twistless roving, determining a proper drawing process according to the required fiber number, and adopting a hard paper cylinder to replace an original soft cylinder for coiling so as to conveniently adopt an external unwinding mode for unwinding during weaving and avoid twisting phenomenon generated in the weaving process; meanwhile, a plasticizer with the mass fraction of 0.1 percent is added into the formula of the original glass fiber impregnating compound, so that the untwisted roving has plasticity;
step 2, weaving process:
and 2.1, replacing the original internal withdrawing creel with an external withdrawing creel, wherein the internal withdrawing creel is used for passively withdrawing yarns, and the width of the yarns is influenced due to the twisting phenomenon in the withdrawing process. The outward withdrawing creel realizes synchronous radial withdrawing in the weaving process by adding a withdrawing device with damping, the tension is adjustable, the twisting phenomenon does not exist, and the width consistency of yarns can be ensured;
2.2, in the weaving process, the reed dent with the width of 0.8mm is adjusted to be a thin reed dent with the width of 0.5mm, so that the width of a yarn passage is increased, and the deformation of the yarn in the weaving process is reduced;
2.3, after the cloth is woven, the cloth cover passes through a stepping platform, a microwave spraying device is additionally arranged between a walkway and a winding, and the water solution containing the plasticizer is uniformly sprayed on the cloth cover, wherein the spraying amount is generally 0.2-0.3% of the weight of the cloth;
step 2.4, adding a hot air drying device behind the microwave spraying, controlling the temperature at 150 +/-5 ℃, drying the moisture on the cloth surface, and enabling the cloth surface to have a certain temperature, which is preferably 60 ℃ generally;
step 2.5, adding a pair of compression rollers which are arranged up and down after the drying process, wherein the diameter of the compression roller is preferably 500mm, the compression roller at the lower part adopts a stainless steel roller, the compression roller at the upper part adopts a polytetrafluoroethylene coating and air cylinder pressurizing devices are arranged at two ends, the cloth with a certain temperature directly enters the upper compression roller and the lower compression roller to be rolled, and different pressures are selected according to the difference of the single weight of the cloth to shape the cloth;
and 2.6, cooling and then rolling by using a rolling device.
Preferably, the plasticizer is water-soluble polyurethane, and the water-soluble polyurethane contains 1.0 wt% of polyurethane.
Preferably, the amount of the aqueous solution containing the plasticizer sprayed is 0.2 to 0.3% (dry weight) per unit weight of the cloth.
Preferably, the diameter of the press roll is 500 mm.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a preparation process of glass fiber cloth for a high-end machine-made FRP (fiber reinforced plastic) large plate, the prepared glass fiber cloth has the advantages of good surface smoothness, quick soaking, difficult unwinding deformation and the like, the FRP large plate obtained by adopting the glass fiber cloth has the advantages of light weight, high strength, corrosion resistance, good weather resistance, excellent impact property, good thermal insulation property, cleaning resistance, rich colors and the like, and is widely applied to special boxes such as motor homes, passenger cars, trucks, cold chain transport vehicles (refrigerated and insulated vehicles), containers, square cabins (communication and medical treatment) and the like.
Description of the drawings:
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a table of fiber number data for glass roving drawn according to the present invention.
FIG. 3 is a table of thickness uniformity performance testing data for the embodiments and comparative examples.
FIG. 4 is a table of saturation rate test data for the specific embodiment and comparative example.
Fig. 5 is a table of cloth stiffness test data of the embodiment and the comparative example.
Description of reference numerals:
the device comprises an outward withdrawing creel 1, a microwave spraying device 2, a hot air drying device 3, a compression roller 4, a cloth cover 5, a winding device 6 and a stepping platform 7.
The specific implementation mode is as follows:
the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the preferred embodiments in the description are only examples, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.
As shown in fig. 1, the following technical solutions are adopted in the present embodiment: the preparation method comprises the following steps:
step 1, preparing glass fiber twistless roving:
when drawing glass fiber twistless roving, determining a proper drawing process according to the required fiber number, and adopting a hard paper cylinder to replace an original soft cylinder for coiling so as to conveniently adopt an external unwinding mode for unwinding during weaving and avoid twisting phenomenon generated in the weaving process; meanwhile, a plasticizer with the mass fraction of 0.1 percent is added into the formula of the original glass fiber impregnating compound, so that the untwisted roving has plasticity;
step 2, weaving process:
step 2.1, replacing the original internal withdrawing creel (warp and weft) with the external withdrawing creel 1, wherein the internal withdrawing creel is used for passively withdrawing yarns, and twisting phenomenon exists in the withdrawing process and can influence the width of the yarns; the outward withdrawing creel 1 realizes synchronous radial withdrawing in the weaving process by adding a withdrawing device with damping, has adjustable tension, does not have twisting phenomenon, and can ensure the width consistency of yarns;
2.2, in the weaving process, the reed dent with the width of 0.8mm is adjusted to be a thin reed dent with the width of 0.5mm, so that the width of a yarn passage is increased, and the deformation of the yarn in the weaving process is reduced;
step 2.3, after the cloth is woven, the cloth surface 5 passes through a stepping platform 7, a microwave spraying device 2 is additionally arranged between a passage and a winding, the microwave spraying device 2 uniformly sprays water solution containing a plasticizer (generally 1.0 percent of water-soluble polyurethane) on the cloth surface 5, and the spraying amount is generally 0.2 to 0.3 percent (dry weight) of the weight of the cloth sheet;
step 2.4, adding a hot air drying device 3 behind the microwave spraying, controlling the temperature at 150 +/-5 ℃, drying the moisture on the cloth surface 5, and enabling the cloth surface to have a certain temperature, which is preferably 60 ℃ generally;
step 2.5, adding a pair of compression rollers 4 which are arranged up and down after the drying process, wherein the diameter of each compression roller 4 is preferably 500mm, the compression roller 4 below adopts a stainless steel roller, the compression roller 4 above adopts a polytetrafluoroethylene coating and air cylinder pressurizing devices are arranged at two ends, cloth with a certain temperature directly enters the upper compression roller and the lower compression roller to be rolled, and different pressures are selected according to different single weights of the cloth to shape the cloth;
and 2.6, cooling and then rolling by using a rolling device 6.
The working principle of the specific embodiment is as follows: (evidence is provided to demonstrate that all the technical parameters of the invention are not adjustable by a person skilled in the art on the basis of the prior art and with the aid of his general knowledge in the field, by means of limited experimentation).
The specific implementation mode has the following technical effects: the existing glass fiber cloth is made of untwisted roving and woven by a weaving machine according to a certain process, the inner-retreating type yarn leading is adopted, the natural twist can be increased in the production process, and therefore the flatness of the cloth cover is affected.
1. The glass fiber untwisted roving produced by the method has the advantages that the flatness of the cloth surface is obviously improved, and the permeability is also improved.
2. Through the effect of the plasticizer, the stiffness of the cloth surface can be improved, and the risk of poor products caused by wrinkling of the cloth surface due to insufficient stiffness of the cloth surface in the process of manufacturing the large flat plate is reduced.
And (3) testing and comparing:
the glass fiber cloth (EWR 300 cloth is taken as an example) prepared by the specific embodiment is compared with the glass fiber cloth (a comparison example) in the prior art in the tests of thickness uniformity, permeation rate (the test method refers to GB/T17470) and cloth cover stiffness (the test method refers to GB/T7690.4), the obtained test data are shown in detail in figures 2-4, and the test data show that the cloth cover thickness uniformity of the glass fiber cloth prepared by the processing technology of the invention is obviously improved, the permeation rate is also rapidly improved, meanwhile, the stiffness of glass fiber yarns is obviously improved, the improvement of the fitness during unreeling is facilitated, the deformation of the cloth in the later use process is reduced, and the appearance quality level of a large flat plate is improved.
It will be appreciated by those skilled in the art that modifications and equivalents may be made to the embodiments described above, and that various modifications, equivalents, improvements and the like may be made without departing from the spirit and scope of the invention.
Claims (4)
1. A preparation process of glass fiber cloth for a high-end machine-made FRP large plate is characterized by comprising the following steps: the preparation method comprises the following steps:
step (1), preparing glass fiber twistless roving:
when drawing glass fiber twistless roving, determining a proper drawing process according to the required fiber number, and adopting a hard paper cylinder to replace an original soft cylinder for coiling; meanwhile, a plasticizer with the mass fraction of 0.1 percent is added into the formula of the original glass fiber impregnating compound, so that the untwisted roving has plasticity;
step (2), weaving process:
step (2.1), replacing the original internal withdrawing creel with an external withdrawing creel, wherein the external withdrawing creel realizes synchronous radial withdrawing in the weaving process by adding a withdrawing device with damping, the tension is adjustable, the twisting phenomenon does not exist, and the width consistency of yarns is ensured;
step (2.2), in the weaving process, the reed dent with the width of 0.8mm is adjusted to be a thin reed dent with the width of 0.5mm, the width of a yarn passage is increased, and the deformation of the yarn in the weaving process is reduced;
step (2.3), after the cloth is woven, the cloth cover passes through a stepping platform, a microwave spraying device is additionally arranged between a walkway and a winding, and the water solution containing the plasticizer is uniformly sprayed on the cloth cover, wherein the spraying amount is generally 0.2-0.3% of the weight of the cloth;
step (2.4), adding a hot air drying device behind the microwave spraying, controlling the temperature at 150 +/-5 ℃, drying the moisture on the cloth surface, and enabling the cloth surface to have a certain temperature, which is preferably 60 ℃;
step (2.5), after the drying procedure, adding a pair of compression rollers which are arranged up and down, wherein the diameter of the compression roller is preferably 500mm, the compression roller at the lower part adopts a stainless steel roller, the compression roller at the upper part adopts a polytetrafluoroethylene coating and air cylinder pressurizing devices are arranged at two ends, the cloth with certain temperature directly enters the upper compression roller and the lower compression roller to be rolled, and different pressures are selected according to the difference of the single weight of the cloth to shape the cloth;
and (2.6) cooling and then rolling by using a rolling device.
2. The process of claim 1, wherein the glass fiber cloth is selected from the group consisting of: the plasticizer is water-soluble polyurethane, and the water-soluble polyurethane contains 1.0 wt% of polyurethane.
3. The process of claim 1, wherein the glass fiber cloth is selected from the group consisting of: the spraying amount of the aqueous solution containing the plasticizer is 0.2-0.3% of the weight of the cloth.
4. The process of claim 1, wherein the glass fiber cloth is selected from the group consisting of: the diameter of the press roll is 500 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676256.4A CN113445174B (en) | 2021-06-18 | 2021-06-18 | Preparation process of glass fiber cloth for high-end machine-made FRP (fiber reinforced Plastic) large plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676256.4A CN113445174B (en) | 2021-06-18 | 2021-06-18 | Preparation process of glass fiber cloth for high-end machine-made FRP (fiber reinforced Plastic) large plate |
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| CN113445174A true CN113445174A (en) | 2021-09-28 |
| CN113445174B CN113445174B (en) | 2022-09-13 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850622A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Manufacturing process of composite sleeper |
| CN102152582A (en) * | 2010-12-01 | 2011-08-17 | 东南大学 | Polyester basalt fiber cloth and preparation method thereof |
| CN102634913A (en) * | 2012-04-06 | 2012-08-15 | 经纬纺织机械股份有限公司 | Weft storage device without twist change |
| CN102672950A (en) * | 2012-05-22 | 2012-09-19 | 北京盘天新技术有限公司 | Continuous production method and equipment for composite type sleeper |
| CN104495513A (en) * | 2014-12-16 | 2015-04-08 | 中材科技股份有限公司 | Glass fiber winding creel for tangential protofilament unwinding |
| CN104528462A (en) * | 2014-12-16 | 2015-04-22 | 中材科技股份有限公司 | Glass fiber zero-twist rough yarn winding method |
| CN109576892A (en) * | 2019-01-16 | 2019-04-05 | 河南光远新材料股份有限公司 | A kind of high-strength high-impact glass fabric and preparation method thereof |
| CN111941871A (en) * | 2020-07-15 | 2020-11-17 | 常州天马集团有限公司（原建材二五三厂） | Production process of glass fiber cloth special for thermoplastic glass fiber reinforced PP composite material |
-
2021
- 2021-06-18 CN CN202110676256.4A patent/CN113445174B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850622A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Manufacturing process of composite sleeper |
| CN102152582A (en) * | 2010-12-01 | 2011-08-17 | 东南大学 | Polyester basalt fiber cloth and preparation method thereof |
| CN102634913A (en) * | 2012-04-06 | 2012-08-15 | 经纬纺织机械股份有限公司 | Weft storage device without twist change |
| CN102672950A (en) * | 2012-05-22 | 2012-09-19 | 北京盘天新技术有限公司 | Continuous production method and equipment for composite type sleeper |
| CN104495513A (en) * | 2014-12-16 | 2015-04-08 | 中材科技股份有限公司 | Glass fiber winding creel for tangential protofilament unwinding |
| CN104528462A (en) * | 2014-12-16 | 2015-04-22 | 中材科技股份有限公司 | Glass fiber zero-twist rough yarn winding method |
| CN109576892A (en) * | 2019-01-16 | 2019-04-05 | 河南光远新材料股份有限公司 | A kind of high-strength high-impact glass fabric and preparation method thereof |
| CN111941871A (en) * | 2020-07-15 | 2020-11-17 | 常州天马集团有限公司（原建材二五三厂） | Production process of glass fiber cloth special for thermoplastic glass fiber reinforced PP composite material |
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