568 results about "Glass fabric" patented technology

The invention relates to the technical field of power cables, in particular to a heat-aging-resistant crosslinked polyethylene insulated power cable and a preparation method thereof. The cable comprises conductor wire cores, an insulating layer, a filling layer, a composite function layer, a steel tape armoring layer and a sheath layer from inside to outside. The insulating layer is composed of semi-conductive crosslinked polyethylene, silicone resin, nano montmorillonite and an HALS light stabilizer; the filling layer is composed of plasticized glass fabric, polyphenylene sulfide and rare earth oxide; the composite functional layer sequentially comprises a heat-conducting inner layer, a flame-retardant middle layer and an anti-UV outer layer from inside to outside; the sheath layer is composed of polyolefin, white carbon black, ceramic silicone rubber, a flame retardant, polyethylene wax and an initiator. According to the cable, cross-linked polyethylene and silicone resin are preferably selected as heat-resistant materials, heat conduction / flame retardance / UV resistance / armored multi-layer synergistic protection is achieved, the mechanical barrier performance is improved, meanwhile, damage of thermal stress to internal materials is reduced, comprehensive improvement of thermal aging resistance is achieved, and the cable is suitable for high-temperature, high-humidity and frequent thermal cycle harsh environments.

The invention relates to the field of copper-clad plates, and discloses a low-dielectric-constant high-performance copper-clad plate and a preparation method thereof.The preparation method comprises the specific steps that epoxy resin, phenolic resin, polyphenyl ether modified resin, modified nano silicon dioxide and the like are taken and mixed to obtain a resin glue solution; impregnating glass fabric in the resin glue solution to obtain a prepreg; laminating prepregs, and covering copper foil for hot pressing; the polyphenyl ether modified resin comprises epoxy resin, diallyl cyanate and fluorine-containing polyphenyl ether resin prepared by reaction of polyphenyl ether, bisphenol AF and benzoyl peroxide; the modified nano silicon dioxide is prepared by reacting allyl glycidyl ether, vinyltriethoxysilane and phenyltris (dimethylsiloxane) silane, then grafting with a phosphorus-containing intermediate to prepare a modified additive, and grafting with nano silicon dioxide, and the phosphorus-containing intermediate is prepared by reacting phenylphosphoryl dichloride and eugenol. The copper-clad plate with high flame retardance, high peel strength, heat resistance and low dielectric constant is prepared.

The invention relates to a high-impact-resistance light-weight high-strength composite board and a preparation method thereof.The preparation method comprises the following steps that S1, a first glass fiber cloth is arranged between two thermoplastic polyurethane films, hot pressing is conducted, and a glass fiber cloth reinforced polyurethane film is obtained; placing the polyamide-polyether block copolymer film between two adjacent layers of glass fabric reinforced polyurethane films, and performing hot pressing to obtain a high-toughness surface layer; s2, adding the modified hollow glass microspheres, bisphenol A epoxy resin, polyurethane modified epoxy resin, dicyandiamide and an accelerant into a solvent to obtain a resin solution; immersing second glass fiber cloth into the resin glue solution, taking out the second glass fiber cloth after the second glass fiber cloth is completely immersed, and baking the second glass fiber cloth to obtain an epoxy glass fiber prepreg; s3, stacking the plurality of epoxy glass fiber prepregs to obtain a low-density core layer; and S4, stacking the low-density core layer between two adjacent high-toughness surface layers, and performing hot pressing to obtain a target product. The high-strength and high-impact-resistance building material has the advantages of light weight, high strength and high impact resistance.

The invention relates to the technical field of copper-clad plates, and particularly discloses a high-speed copper-clad plate prepared from functional plastics, and the high-speed copper-clad plate is formed by hot-pressing and curing a plurality of functional plastic modified epoxy group prepregs; the functional plastic modified epoxy group prepreg is prepared from electronic-grade glass cloth and functional plastic modified epoxy resin; the functional plastic modified epoxy resin comprises 5-20 parts by weight of functional plastic, 100 parts by mass of epoxy resin, 8-25 parts by mass of a curing agent composition, 5-25 parts by mass of a functional filler composition, 60-150 parts by mass of an organic solvent and 1-5 parts by mass of a functional auxiliary agent. The functional plastic is PEEK (Polyether Ether Ketone) micro powder; the ratio of the total mass of the functional plastic and the functional filler composition to the mass of the epoxy resin is (15-25): 100. The high-speed copper-clad plate disclosed by the invention is low in dielectric loss and excellent in heat resistance, and meets the dielectric property requirement of a 5G high-frequency PCB (Printed Circuit Board) substrate.

The invention provides a glass fabric cutting device which comprises a cutting table and a portal frame with a lifting function, and the cutting table is located on the lower portion of a cross beam of the portal frame. A cutting unit is arranged on a cross beam of the portal frame and comprises an exhaust fume collecting hood, a sliding rail, a laser generator, an air compressor, an air inlet pipe, a cyclone barrel, an exhaust pipe, a scrap outlet and a scrap collecting box. The exhaust fume collecting hood is fixed to the bottom of a cross beam of the portal frame. The sliding rail is fixed into the exhaust fume collecting hood. Negative pressure adsorption is formed through the exhaust fume collecting hood and the air compressor, high-temperature smoke dust and glass fiber chippings generated in the cutting process are rapidly sucked in, the cyclone barrel is introduced, the smoke dust and the solid chippings are effectively separated through the cyclone separation technology, it is ensured that the working environment is clean, and the influence on the health of operators is reduced. Meanwhile, the scrap collecting box is combined with the pasting roll and the display board to adhere solid scraps, automatic winding operation of the scraps is achieved through the rotating motor, the cleaning process is simplified, and efficiency is improved.

The invention belongs to the technical field of solar cells, and particularly relates to composite glass cloth for a solar cell and application of the composite glass cloth. The glass cloth comprises glass cloth and reinforced epoxy resin attached to the glass cloth, the reinforced epoxy resin comprises epoxy resin powder, liquid epoxy resin, a curing agent and an initiator, and the curing temperature of the reinforced epoxy resin is 130-150 DEG C. According to the technical scheme provided by the invention, the epoxy resin composite glass cloth is additionally arranged on the two sides of the battery piece, so that the problem that a light solar battery assembly is insufficient in strength and cannot pass a hail-resistant experiment is solved; the initiator and the curing agent with corresponding components are matched, so that the surface of the composite glass cloth is not sticky to hands, production, transportation and on-site packaging are facilitated, cross-linking curing can be further performed at a relatively high temperature when a battery piece is finally laminated, and enough bonding strength with an adjacent layer is generated.

The invention discloses glass cloth, prepreg and a printed circuit board. [Problem] To provide a glass cloth capable of achieving a prepreg and a printed wiring board having excellent dimensional stability and capable of suppressing the occurrence of pinholes in the prepreg. [Solution] The glass cloth contains glass yarns as warp yarns and weft yarns, the weaving density of the warp yarns and the weft yarns is 50-110 / 25 mm, the thickness of the glass cloth is 20 [mu] m or less, and the average gap intervals in the weft yarn direction and the warp yarn direction in which meshes are formed are 162-240 [mu] m and 65-200 [mu] m, respectively.

The purpose of the present disclosure is to provide a glass cloth that is capable of realizing excellent dielectric properties and excellent insulation reliability, and that makes it possible to obtain a resin substrate having a small whitening distance.　The glass cloth according to the present disclosure is obtained by weaving glass thread. This glass cloth is surface-treated by a surface treatment agent. A formula A is obtained from the total carbon content in the glass cloth and the carbonyl group-derived peak height as measured by Fourier transform infrared spectroscopy. Formula A: carbonyl group-derived peak height / total glass-cloth carbon content is 10 or greater; and the number of white spots P is 10 pcs. / m2 or less.

The utility model discloses a glass fabric warp knitting machine flaw detection device which comprises a base and a detection box arranged in the center of the top end of the base, the detection box is provided with supports which are symmetrically arranged, feeding rollers which are symmetrically arranged up and down are arranged in any one set of supports, ports for glass fabric to enter and exit are formed in the two sides of the detection box, and the two ends of the detection box are connected with the feeding rollers. And a control panel is arranged on one end surface of the detection box. The glass fabric defect detection device has the beneficial effects that the glass fabric can be smoothed through the electric push plate, the phenomenon that the glass fabric is wrinkled when entering or leaving the detection box is avoided, meanwhile, a camera module and related parts can move in the horizontal direction through cooperation of a threaded rod and a threaded sleeve, and then the glass fabric defect detection efficiency is improved; meanwhile, through cooperation of the first guide roller, the second guide roller and related parts, overall lifting or partial lifting of the bearing conveying belt can be achieved, and the detection accuracy is improved.

The invention discloses a low-loss resin composition containing active ester, a prepreg and a copper-clad laminate, the resin composition comprises the following main components by weight: 30-70 parts of epoxy resin, 30-70 parts of an epoxy curing agent, 0-3 parts of a curing accelerator, and 20-100 parts of a filler; wherein the epoxy curing agent is tetraphenol fluorenyl active ester; the prepreg is prepared by dipping glass cloth in a glue solution formed by the low-loss resin composition and baking the glass cloth in an oven at 80-200 DEG C for 1-20 minutes after dipping is completed, the copper-clad plate is prepared from the prepreg, fluorine-containing tetrafunctional active ester is synthesized through esterification reaction of tetraphenol fluorene and pentafluorobenzoyl chloride, and the fluorine-containing tetrafunctional active ester is used for preparing the copper-clad plate. A rigid fluorene ring structure is introduced, so that the thermal performance of the cured epoxy composite material is favorably improved; therefore, the invention effectively solves the problems that the existing resin composition for preparing the copper-clad plate is insufficient in heat resistance, and in order to meet the requirement of low polarity, the dosage of the filler is increased, the interfacial compatibility of the resin and the filler becomes poor, and the dielectric loss is further improved.

The present invention relates to the technical field of copper clad laminates, and specifically discloses a high-speed copper clad laminate prepared using functional plastics. The high-speed copper clad laminate is formed by hot pressing and curing several functional plastic-modified epoxy-based prepregs; the functional plastic-modified epoxy-based prepregs are made of electronic-grade glass cloth and functional plastic-modified epoxy resin; the functional plastic-modified epoxy resin includes 5-20 parts by weight of functional plastics, 100 parts by mass of epoxy resin, 8-25 parts by mass of a curing agent composition, 5-25 parts by mass of a functional filler composition, 60-150 parts by mass of an organic solvent, and 1-5 parts by mass of a functional additive; the functional plastic is PEEK micropowder; the mass ratio of the total mass of the functional plastic and the functional filler composition to the mass of the epoxy resin is (15-25):100. The high-speed copper clad laminate in the present invention has low dielectric loss and excellent heat resistance, meeting the dielectric performance requirements of 5G high-frequency PCB substrates.

The invention discloses an ultraviolet-cured glass fabric impregnated reinforced material as well as a preparation method and application thereof. The ultraviolet-cured glass fabric impregnated reinforced material comprises the following components in parts by weight: 50-70 parts of main body UV resin; 10 to 15 parts of tripropylene glycol diacrylate; 10 to 15 parts of N-acryloyl morpholine; 15 to 20 parts of cyclotrimethylolpropane methylal acrylate; and 5-10 parts of a photoinitiator. The prepared ultraviolet-cured glass fabric impregnated reinforced material has good cold and hot temperature difference resistance, high temperature resistance and weather resistance, also has good scratch resistance, can be used for processing glass fabric in a manner of photocuring after dip coating, and has the advantages of simple processing technology, high efficiency, low energy consumption and no pollution to the environment.

The edge glue scraping device comprises a machine frame, a supporting frame is installed on the inner side of the machine frame, and extrusion rollers are symmetrically and rotationally connected to the position, corresponding to the position under the supporting frame, of the machine frame. According to the utility model, glass cloth is wound on the traction roller after passing through the space between the extrusion rollers and the inside of the material passing groove after being impregnated, the glass cloth is driven by the traction roller to move from bottom to top, and glue on the surface of the glass cloth is preliminarily extruded by the extrusion rollers, so that redundant glue is extruded to the edge; meanwhile, a servo motor drives lead screws on the two sides to rotate at the same time through a gear and a toothed belt, the lead screws drive sliding frames on the two sides of the glass cloth to get close to each other at the same time, the sliding frames drive glue scraping plates to move to the glass cloth, and the four glue scraping plates symmetrically arranged on the two sides of a material passing groove and interval adjusting structures of the glue scraping plates can scrape glue on the two sides of the glass cloth at the same time; therefore, edge glue scraping of the glass cloth can be directly completed, and the working efficiency of the edge glue scraping device is improved.

Provided is an article including a substrate surface-treated with an organosilicon compound represented by formula (1). [In the formula, R1 is a hydrogen atom or an alkyl group; R2 is a hydrogen atom, an alkyl group, an aryl group or a group represented by formula (2) (in the formula, R3 is a hydrogen atom, an alkyl group, an aryl group, an alkenyl group, or an alkyl group substituted with an acryloyloxy group or a methacryloyloxy group, but at least one of R3 is an alkenyl group or an alkyl group substituted with an acryloyloxy group or a methacryloyloxy group; and the wavy line represents a bonding site with a nitrogen atom), and at least one R2 is a group represented by formula (2); m is an integer of 1-3; n is an integer of 1-12; and k is 0 or 1.]

Provided is an organosilicon compound represented by formula (1) and an article including a substrate surface-treated with the organosilicon compound. (In the formula, Me represents a methyl group; each R1 independently represents a hydrogen atom or an alkyl group having 1-10 carbon atoms; R2 represents a hydrogen atom, an alkyl group having 1-10 carbon atoms, or an aryl group having 6-20 carbon atoms; R3 represents a hydrogen atom or a methyl group; X represents a p+q+1-valent hydrocarbon group having 3-20 carbon atoms and containing a branched structure or a ring structure; m represents an integer of 1-3; n represents an integer of 1-12; p represents 0 or 1; q represents an integer of 1-3; and p+q represents an integer of 1-4.)

The invention relates to the technical field of drying equipment, and discloses a drying treatment device for glass fiber fabric processing, which comprises a ventilation shell, the top of the ventilation shell is fixedly connected with a plurality of mounting frames, the tops of the mounting frames are fixedly connected with a heating mechanism, a heating object is arranged in the heating mechanism, and a heat source is provided; the top of the heating mechanism is fixedly connected with an air blowing seat, a blowing fan is arranged in the air blowing seat and provides power for air flowing, the top of the air blowing seat is fixedly connected with a communicating pipe, the communicating pipe can be connected with the air blowing seat and the mounting frame to be used for generating circulating air, and the bottom of the communicating pipe is fixedly connected to the outer portion of the mounting frame. According to the glass fabric drying device, air flow obtained after drying is filtered and dried through the filtering mechanism and the drying mechanism, then the fabric can be preheated through air obtained after drying waste heat, therefore, the glass fabric can be prevented from directly entering the drying device, damage or deformation of the glass fabric is avoided, and then economic losses can be avoided.

The utility model relates to a wind power blade tip test section connecting structure which comprises a structural layer and a pouring layer, the structural layer comprises a bolt sleeve, a glass fiber reinforced plastic wedge-shaped strip, a PVC bevel angle, glass fiber cloth and a blade tip shell, and the pouring layer comprises a glue injection pipeline, a glue injection opening and a composite flow guide net. Glass fabric located on the inner side is laid on the outer side of the blade tip shell, and a core material, a bolt sleeve and a glass fiber reinforced plastic wedge-shaped strip are arranged on the outer side of the glass fabric located on the inner side. Vacuum infusion forming is adopted, the resin wettability is good, the cloth layer infusion quality of the connecting position is high, bolt sleeves are evenly arranged, and even stress is guaranteed.

The invention provides a rapidly-packaged piezoelectric circular tube hydrophone and a manufacturing method thereof, the rapidly-packaged piezoelectric circular tube hydrophone comprises a piezoelectric hydrophone and a pre-amplification device, the piezoelectric hydrophone comprises an injection molding type polyurethane coating layer, a piezoelectric ceramic circular tube and a base, and the outer side of the piezoelectric ceramic circular tube is sleeved with a shielding ring; the injection molding type polyurethane coating layer completely coats the hydrophone upper end cover, the piezoelectric ceramic circular tube, the shielding ring, the hydrophone lower end cover and the joint of the hydrophone lower end cover and the base; the front placing device comprises an outer cylinder body and a front placing cylinder body, and heat conduction pouring sealant is arranged between the outer cylinder body and the front placing cylinder body. According to the invention, automatic packaging of the piezoelectric ceramic circular tube hydrophone is realized through an injection molding technology, the problem of foams is solved, the packaging efficiency is improved, and the consistency of the piezoelectric ceramic circular tube hydrophone is improved; the shielding ring is used for replacing an original shielding layer made of glass cloth and conductive adhesive, so that the consistency of materials is improved, and the manufacturing technology of the hydrophone is optimized; by means of the heat conduction pouring sealant, air cavities between the shells are reduced, and the heat conduction efficiency is improved.

One aspect of the present invention relates to a prepreg comprising a thermosetting resin composition or a semi-cured product of the thermosetting resin composition, and a glass cloth, wherein the thermosetting resin composition contains molybdenum compound particles (A) and an epoxy resin (B), and the glass cloth contains, with respect to the total amount of components of the glass cloth, 45-55 mass% of SiO2, 20-30 mass% of Al2O3, 3.0 mass% or less of MgO, and 10-15 mass% of P2O5.

The invention discloses a safe toe cap recycling and separating device, and relates to the field of safe toe cap recycling treatment, the safe toe cap recycling and separating device comprises a rack, a sliding rail is arranged on the upper side of the rack, a mounting plate is arranged on the sliding rail in a sliding manner, and a storage rack for storing waste toe caps is arranged on the mounting plate in a lifting manner; a separation barrel, a cleaning barrel and a drying box are sequentially arranged on the rack in the sliding direction of the mounting plate; a plurality of ultrasonic vibration rods are arranged in the separation barrel, a plurality of vertical spraying pipes are arranged on the peripheral side of the inner wall of the cleaning barrel in an array mode, and a plurality of electric heating pipes are arranged in the drying box. According to the device, the resin and the glass fabric are separated, and subsequent secondary processing and use are facilitated.

The utility model discloses a pneumatic chuck for a glass cloth sending mechanism, which comprises a clamping jaw assembly, the clamping jaw assembly comprises a fixed seat and a plurality of clamping jaws, each clamping jaw comprises a mounting block and a first clamping jaw which are arranged at an included angle, and the connecting position of the first clamping jaw and the mounting block is of an arc-shaped structure, so that the stress area of a stress point is enlarged, the stress is improved, and the service life of the clamping jaw is prolonged. Therefore, the strength of the clamping jaw is enhanced, the situation of jaw breakage is avoided, the number and frequency of replacing the clamping jaw are reduced, and the production efficiency is improved.

Provided is a glass cloth having a single fiber diameter of less than 3.0 [mu] m, a thickness of 15 [mu] m or less, a mass of 10 g / m2 or less, and an excellent dielectric loss tangent. The glass cloth contains 50% by mass or more of SiO2 in the composition, the single fiber diameter of either warp or weft constituting the glass cloth is less than 3.0 [mu] m, the thickness of the glass cloth is 15 [mu] m or less, and the mass of the glass cloth is 10 g / m2 or less.

The invention relates to the technical field of building waterproof materials, in particular to a rubber waterstop for a deformation joint of a combined concrete floor. The rubber waterstop sequentially comprises a composite rubber plate, a self-adhesive rubber sheet and an elastic supporting strip from top to bottom. The composite rubber plate is composed of a modified rubber plate and a glass fabric reinforcing layer arranged on the top of the modified rubber plate. The modified rubber plate is prepared by the following method: putting 90-110 parts by weight of a rubber base material, 4-6 parts by weight of nano zinc oxide, 1-1.5 parts by weight of stearic acid, 2-3 parts by weight of an anti-aging agent, 8-12 parts by weight of a functional aid, 20-30 parts by weight of dioctyl phthalate, 15-30 parts by weight of carbon black, 20-40 parts by weight of kaolin and 1-2 parts by weight of an accelerant into an internal mixer for mixing; performing extrusion molding on the rubber compound by adopting an extruder or a calender, and then performing cutting treatment, thereby obtaining the product. The rubber waterstop provided by the invention not only has excellent waterproof and dynamic sealing effects, but also has excellent mechanical properties and aging resistance; meanwhile, installation is flexible and efficient, and construction and later maintenance cost is reduced.

The utility model discloses a small-breadth gluing mechanism for a laboratory, which comprises a base and further comprises a frame fixedly arranged at the top of the base, a first clamping seat is fixedly arranged at one end of the frame, a second clamping seat is arranged at the other end of the frame in a sliding manner, and clamping parts are arranged in the first clamping seat and the second clamping seat; the top of the frame is provided with a mounting seat in a sliding mode, the two scraper blades are arranged on the mounting seat in a sliding mode, and the mounting seat is provided with an adjusting assembly for adjusting the distance between the two scraper blades. According to the utility model, the clamping plates for clamping the glass fabric are respectively arranged on the first clamping seat and the second clamping seat in a sliding manner, so that the glass fabric can be clamped and fixed, the second clamping seat is driven by the first screw rod to slide, the glass fabric can be tensioned, the tension degree of the glass fabric can be conveniently adjusted, glue is uniformly coated, and the production efficiency is improved. And the gluing quality and the accuracy of experimental data are improved.

The invention discloses a gluing device for epoxy glass cloth laminated board production, and belongs to the technical field of epoxy glass cloth laminated board production, the gluing device comprises a base, a glue dipping box is fixedly mounted on the base, and an adjusting assembly, a glue extruding assembly and an auxiliary assembly are arranged on the glue dipping box. According to the glue dipping device for the epoxy glass cloth, the epoxy glass cloth can be in a continuous Z shape in the glue dipping box, so that the moving path of the epoxy glass cloth in the glue dipping box can be increased, the gluing time of the epoxy glass cloth in the glue dipping box is changed, and the position of an adjusting cylinder can be locked by arranging a limiting unit; according to the epoxy glass cloth gluing device, the locking of the form of epoxy glass cloth in a glue dipping box is achieved, so that the stability of the epoxy glass cloth in the gluing process is improved, and through the arrangement of an auxiliary assembly, solidified glue attached to a glue extruding cylinder and an adjusting cylinder can be scraped and cleaned; therefore, the damage to the epoxy glass cloth caused by excessive glue solidified by the glue extruding cylinder and the adjusting cylinder is prevented.

The present invention provides a glass cloth which is woven with a glass yarn containing a plurality of glass filaments as warp and weft, and is surface-treated with a surface treatment agent, wherein the glass cloth contains a prescribed region, the region has a value of the following formula (1): (E1 / T1) / (W1 / L1)... (1) which is greater than 0 and is 0.14 or less, in the formula, E1 represents a curvature 2.5 cm ‑1 at the time of the second bending, a curvature 0.5 to +1.5 cm ‑1 between each unit length, a second bending stiffness, unit: N·cm 2 / cm, T1 represents a thickness of the region, unit: cm, L1 represents a beat-up interval of the warp, unit: cm, and W1 represents a warp width, unit: cm, in such a manner that a valley bottom line of a valley generated by bending is bent along a weft direction.

The utility model discloses a heavy anti-corrosion lining of a flame-retardant flue gas desulfurization (FGD) system, and particularly relates to the field of anti-corrosion materials. The utility model provides a flame retardant type flue gas desulfurization FGD system heavy anti-corrosion lining, which comprises a bottom coating, an anti-corrosion lining, glass fiber cloth and a flame retardant nano composite layer, the anti-corrosion lining is arranged on the bottom coating, the anti-corrosion lining is composed of a plurality of lining bodies, a splicing device is arranged between every two adjacent lining bodies, the glass fiber cloth is arranged on the bottom coating, and the flame retardant nano composite layer is arranged on the glass fiber cloth. The glass fabric is arranged on the anti-corrosion lining, and the flame-retardant nano composite layer is arranged on the glass fabric.

The utility model relates to the technical field of raw material storage tanks, and discloses a raw material storage tank for producing epoxy phenolic aldehyde laminated glass cloth rods, which comprises a storage tank, a support is fixedly connected to the outer wall of the storage tank, a discharge port is formed in the storage tank, a hot mixing assembly is arranged in the storage tank, and a hot mixing assembly is arranged in the hot mixing assembly. The hot mixing assembly is used for heating and stirring raw materials, the hot mixing assembly comprises a power supply, the power supply is fixedly connected to the outer wall of the storage tank, and a filtering assembly is arranged at the top of the storage tank and used for intercepting impurity particles contained in the raw materials for producing the epoxy phenolic aldehyde laminated glass cloth rods. According to the utility model, the heating pipe emits heat through the power supply output end, and meanwhile, local overheating of raw materials can be avoided through the temperature equalizing plate I and the temperature equalizing plate II, so that the effect of uniformly heating the raw materials is realized, the problems of local overheating and unstable performance of the raw materials caused by non-uniform heat distribution are solved, and the overall efficiency of a raw material heating link is improved.

To provide a storage method of glass cloth and a glass cloth package capable of maintaining dielectric characteristics of a glass cloth which has excellent dielectric characteristics.SOLUTION: A glass cloth is constituted with a glass yarn including a plurality of filaments being a warp and a weft, and the dielectric tangent in the glass cloth in 10GHz is equal to or less than 0.00200. A storage method includes storing the glass cloth under the atmosphere where the average dew point under the atmospheric pressure in a storage environment is equal to or less than 18°Cdp and the average temperature is equal to or less than 100°C. A package includes a packaging material and the glass cloth stored inside the packaging material, and the steam permeability of the packaging material measured under the condition of 40°C90%Rh is equal to or less than 8 g / (m2×24hr).SELECTED DRAWING: Figure 1

The utility model is suitable for the technical field of static electricity removal and dust removal, and provides a polytetrafluoroethylene glass cloth static electricity removal and dust removal device which comprises a workbench, a static electricity removal assembly installed on one side of the workbench, a conveying assembly and a dust removal assembly, and the conveying assembly and the dust removal assembly are installed on the top of the workbench. The device solves the problems that in the static electricity removal and dust removal process of existing glass cloth, a static electricity removal mechanism continuously makes contact with the glass cloth, and after the glass cloth is used for a long time, adsorbed dust can be accumulated on the static electricity removal mechanism, so that the static electricity removal effect of the static electricity removal mechanism is affected. The glass cloth is laid on the surfaces of the static electricity removing ion rods, static electricity removing operation on the bottom face of the glass cloth is achieved along with continuous conveying of the glass cloth, meanwhile, the static electricity removing ion rods for removing static electricity of the glass cloth are continuously switched, and the situation that the same static electricity removing ion rod adsorbs dust after working for a long time and influences cleanliness of the glass cloth is avoided.