CN114103156A - Production system and method for high-elasticity-modulus high-strength glass fiber laminated board - Google Patents
Production system and method for high-elasticity-modulus high-strength glass fiber laminated board Download PDFInfo
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- CN114103156A CN114103156A CN202111139905.3A CN202111139905A CN114103156A CN 114103156 A CN114103156 A CN 114103156A CN 202111139905 A CN202111139905 A CN 202111139905A CN 114103156 A CN114103156 A CN 114103156A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Abstract
The invention discloses a system and a method for producing a high-elasticity modulus and high-strength glass fiber laminated board, and belongs to the technical field of laminated board preparation. The production system of the high-elasticity modulus and high-strength glass fiber laminated board comprises: the device comprises a mixing device, a heating device, a tank furnace wire drawing device, an infiltration wire collecting device, a warp machine and a laminated board forming device; the mixing device is used for weighing raw materials of the glass fibers, conveying the raw materials to the tank furnace wire drawing device, carrying out vitrification and melting treatment on the raw materials through a heating device, and then carrying out spinning forming; then coating the impregnating compound by a monofilament oiling device, winding the filaments by a filament collector to obtain direct roving, and manufacturing the glass fiber cloth by a warp machine; and then obtaining the laminated board by using a laminated board forming device. The laminated board has simple production equipment, the prepared glass fiber cloth has good compatibility with resin, and the prepared laminated board has higher elastic modulus and mechanical strength.
Description
Technical Field
The invention relates to the technical field of laminated board preparation, in particular to a system and a method for producing a high-elasticity modulus and high-strength glass fiber laminated board.
Background
In recent years, with the increasing market scale of household and industrial laminates, there is an increasing market demand for phenolic resin laminates using paper as a reinforcing material, and cotton cloth and glass fiber cloth as reinforcing materials.
The phenolic resin is a synthetic resin which is discovered firstly and produced industrially firstly, and has the advantages of wide raw material source, low price, high mechanical strength and the like. However, the toughness of the material cured by the phenolic resin is poor, so that the impact resistance of the laminated board is poor. The glass fiber reinforced material has better strength and toughness, and the glass fiber phenolic resin laminated plate produced by using the glass fiber reinforced material can improve the mechanical property and mechanical property of the phenolic resin laminated plate to a certain extent.
On one hand, however, the composition and preparation process of the conventional glass fiber raw material are quite mature, the change is difficult, and the equipment is complex; on the other hand, the compatibility between the glass fiber and the phenolic resin is poor, and if the phenolic resin is directly coated on the surface of the glass fiber, the performance of the prepared material is far lower than the expected value. However, in the prior art, the elastic modulus and strength of the laminated board in individual fields have higher requirements, and the conventional method cannot achieve the expected effect.
In the prior art, the surface of the glass fiber can be modified by using the impregnating compound, so that the compatibility between the glass fiber and a matrix is improved. The performance of the impregnating compound determines the quality of the glass fiber to a great extent, and the impregnating compound can enhance the adhesion, the raising resistance and the coating property of the fiber bundle, so that the surface of the fiber is smooth, the wear resistance and the flexibility are improved, the winding is easy, and the damage is reduced during winding; and the compatibility of the glass fiber and the phenolic resin matrix can be improved, so that the mechanical property of the prepared composite material is improved. However, the existing impregnating compound has slow permeation on the surface of the glass fiber and poor film forming property, so that the prepared composite material has poor mechanical property and is inconvenient to apply.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a system and a method for producing a high-elasticity modulus and high-strength glass fiber laminated board; the raw materials are mixed and conveyed pneumatically, the production equipment is simple, the prepared glass fiber cloth has good compatibility with phenolic resin, and the laminated board prepared by using the impregnating compound has good mechanical property and mechanical property.
In order to solve the technical problems, the invention provides the following technical scheme:
on the one hand, the invention provides a high-elasticity modulus high-strength glass fiber laminated board production system which comprises a material mixing device, a heating device, a tank furnace wire drawing device, an infiltration wire collecting device, a warp machine and a laminated board forming device;
the mixing device comprises a raw material tank, a stock bin, a weighing device and a mixing and conveying tank, wherein raw materials in the raw material tank are conveyed to the stock bin through pneumatic conveying, the raw materials in the stock bin are weighed by the weighing device and then conveyed to the mixing and conveying tank through a pipeline, the raw materials are uniformly mixed through pneumatic conveying, and then the raw materials are conveyed to the tank furnace wire drawing device through pulse pneumatic conveying;
the tank furnace wire drawing device comprises a unit furnace and an H-shaped passage arranged at the tail end of the unit furnace, wherein the raw materials are melted into molten glass in the unit furnace, then flow to the H-shaped passage, flow out from a platinum bushing in the H-shaped passage, and are drawn by a wire drawing machine to form fiber monofilaments;
the fiber single wires are collected, drawn and wound into direct roving through a drawing machine, and then made into glass fiber cloth through a warp machine;
the laminated board forming device comprises a glue solution mixing tank, a glue dipping tank, an oven, a stacking table and a hot press; the glue solution mixing tank is used for mixing glue solution, the mixed glue solution is conveyed to a glue dipping tank, the surface of the glass fiber cloth is coated with glue through the glue dipping tank, then the glass fiber cloth is conveyed to an oven to be dried, then the obtained prepreg is conveyed to a stacking table, and after the preset number of layers is reached, the prepreg is conveyed to the hot press to be subjected to hot press molding, so that the laminated board is obtained.
Further, the mixing device also comprises a pulse pneumatic supply device, and the pulse pneumatic supply device is communicated with the raw material tank and the mixing and conveying tank through a pipeline.
Further, the heating device comprises a boiler using natural gas as fuel and a heat exchanger positioned between the boiler and the tank furnace wire drawing device, and is used for supplying heat to the tank furnace wire drawing device to melt the raw materials.
Furthermore, the production system also comprises a waste silk recovery device, the waste silk recovery device comprises a waste silk mixing tank which enables waste silk to be uniformly mixed, and the waste silk mixing tank is communicated to the unit kiln through a pipeline to perform melting treatment on the waste silk.
Furthermore, the pulse pneumatic supply device is also communicated with a waste silk mixing tank, and waste silk is mixed and conveyed into the unit kiln through pneumatic force.
On the other hand, the invention also provides a production method of the high-elasticity modulus high-strength glass fiber laminated board, and the production system comprises the following steps: weighing raw materials of glass fibers by using the mixing device, conveying the raw materials into the tank furnace wire drawing device, carrying out vitrification and melting treatment on the raw materials by using a heating device, and then carrying out spinning forming; then coating the impregnating compound by a monofilament oiling device, winding the filaments by a filament collector to obtain direct roving, and manufacturing the glass fiber cloth by a warp machine; and then obtaining the laminated board by using a laminated board forming device.
Further, the laminated board is prepared by coating mixed glue solution on glass fiber cloth and then laminating and thermally curing, wherein the mixed glue solution comprises the following components in parts by weight:
the glass fiber cloth is a fabric of direct roving, the direct roving is formed by coating an impregnating compound on the surface of glass fiber, and the impregnating compound comprises the following components in parts by weight:
the silane coupling agent is 3-mercaptopropyltrimethoxysilane, divinyltriaminopropyltriethoxysilane and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane in a mass ratio of 1:0.4-0.6: 1-1.2;
the surfactant is a mixture of fatty alcohol-polyoxyethylene ether, disodium lauryl sulfosuccinate and dodecyl dimethyl amine oxide in a mass ratio of 1:1: 0.5-1.
Preferably, the high-elasticity modulus and high-strength glass fiber laminated board comprises the following components in parts by weight:
preferably, the molecular weight of the epoxy resin emulsion is 600-2000; the molecular weight of the aqueous polyurethane emulsion is 1000-3000.
Preferably, the pH adjusting agent is citric acid.
Preferably, the curing agent is dicyandiamide and/or diaminodiphenylamine; the accelerant is tetramethyl imidazole; the solvent is N-methyl pyrrolidone;
preferably, the glass fiber cloth is 2116 or 7628 in model.
Further, the preparation method of the direct twistless roving comprises the following steps:
step 1: dissolving a surfactant in a part of deionized water, and then adding a silane coupling agent and uniformly mixing;
step 2: respectively diluting the epoxy resin emulsion and the waterborne polyurethane emulsion with the rest deionized water, adding the diluted epoxy resin emulsion and the rest deionized water into the mixed solution obtained in the step (1), and uniformly mixing;
and step 3: adding a pH regulator into the solution obtained in the step (2), and uniformly mixing to obtain a sizing agent;
and 4, step 4: diluting the impregnating compound to form 5-10 wt% of aqueous solution, coating the glass fiber, and drying;
and 5: then the direct roving is wound by a direct roving drawing machine to form direct roving and dried.
The invention also provides a preparation method of the high-elasticity modulus high-strength glass fiber laminated board, which comprises the following steps: firstly, dissolving a curing agent and an accelerator in a solvent, adding phenolic resin, and uniformly mixing to obtain a mixed glue solution; then uniformly coating the mixed glue solution on glass fiber cloth, and drying at the temperature of 150-; and then overlapping the prepregs, and carrying out hot-pressing treatment to obtain the glass fiber laminated board.
Furthermore, the dosage of the mixed glue solution is 0.08-0.11g/cm compared with the glass fiber cloth2。
Further, the hot pressing treatment specifically comprises: overlapping more than 2 prepregs on a smooth stainless steel plate coated with a release agent on two sides, sending the smooth stainless steel plate into a common hot press or a vacuum hot press, controlling the temperature at 130-180 ℃ and the pressure at 15-20MPa for hot press molding, and obtaining the glass fiber laminated plate, wherein the hot press molding time is within the range of 0.5-24 h.
Compared with the prior art, the invention has the following beneficial effects:
the production system of the present invention comprises: the device comprises a mixing device, a heating device, a tank furnace wire drawing device and an infiltration wire collecting device; uniformly mixing glass fiber raw materials by using a mixing device, conveying the glass fiber raw materials to a tank furnace wire drawing device by using air, heating the tank furnace wire drawing device by using a heating device to melt the raw materials, performing wire drawing molding to obtain glass fiber precursor, coating an impregnating compound on the surface of the glass fiber precursor, collecting the glass fiber precursor to obtain direct roving, and preparing the glass fiber cloth by using a warp machine; and then obtaining the laminated board by using a laminated board forming device. The production equipment is simple, the prepared glass fiber has good compatibility with resin, and the glass fiber cloth laminated board prepared by the impregnating compound has good mechanical property and mechanical property.
In the sizing agent, the silane coupling agents are 3-mercaptopropyltrimethoxysilane, divinyltriaminopropyltriethoxysilane and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane in a specific ratio, a reaction group generated after hydrolysis can react with silicon dioxide in the glass fiber, and a group at the other end can be combined with a phenolic resin matrix, so that the glass fiber cloth and the phenolic resin matrix have good compatibility.
Meanwhile, the silane coupling agent and the resin emulsion can be well dispersed through the surfactant, the resin emulsion can be quickly soaked when contacting with the glass fiber, a uniform resin emulsion film is formed on the surface of the glass fiber, the compatibility of the glass fiber and a phenolic resin matrix is improved, and the prepared laminated board has good mechanical property and mechanical property.
Drawings
FIG. 1 is a schematic structural view of a high elastic modulus and high strength glass fiber cloth production system in example 1 of the present invention;
fig. 2 is a schematic structural diagram of a device for forming a high elastic modulus and high strength glass fiber laminated board in embodiment 1 of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is given with reference to specific embodiments.
In the present invention, the materials and reagents used are not specifically described, and are commercially available.
The invention provides a system and a method for producing a high-elasticity modulus and high-strength glass fiber laminated board, and the specific embodiment is as follows.
Example 1
A high elastic modulus high strength fiberglass laminate manufacturing system, see fig. 1-2, comprising: the device comprises a mixing device, a heating device, a tank furnace wire drawing device, an infiltration wire collecting device, a warp machine and a laminated board forming device;
the mixing device comprises a raw material tank 1, a stock bin 2, a weigher 3 and a mixing and conveying tank 4, wherein raw materials in the raw material tank 1 are conveyed to the stock bin 2 through pneumatic conveying, the raw materials in the stock bin 2 are weighed by the weigher 3 and then conveyed to the mixing and conveying tank 4 through a pipeline, the raw materials are uniformly mixed through pneumatic conveying, and then the mixture is conveyed to the tank furnace wire drawing device through pulse pneumatic conveying;
the tank furnace wire drawing device comprises a unit kiln 5 and an H-shaped passage 6 arranged at the tail end of the unit kiln 5, wherein raw materials are melted into molten glass in the unit kiln 5, then flow to the H-shaped passage 6, flow out from a platinum bushing in the H-shaped passage 6, and are drawn by a wire drawing machine to form fiber monofilaments;
the infiltration silk collecting device comprises a monofilament oiling device 7 for coating impregnating agent on fiber monofilaments and a silk collecting device 8 for combining the fiber monofilaments, the fiber monofilaments are collected and drawn and wound into direct roving through a drawing machine 9, and then the roving is made into glass fiber cloth through a warp machine;
the laminated board forming device comprises a glue solution mixing tank 15, a glue dipping tank 16, an oven 17, a stacking platform 18 and a hot press 19; the glue solution mixing tank 15 is used for mixing glue solutions, the mixed glue solutions are conveyed to a glue dipping tank 16, glass fiber cloth is subjected to surface glue coating through the glue dipping tank 16, then conveyed to an oven 17 to be dried, then the obtained prepreg is conveyed to a stacking table 18, and after the prepreg reaches a preset number of layers, the prepreg is conveyed to a hot press 19 to be subjected to hot press molding, and the laminated board is obtained.
Further, the mixing device also comprises a pulse pneumatic supply device 10, and the pulse pneumatic supply device 10 is communicated with the raw material tank 1 and the mixing and conveying tank 4 through pipelines.
The impulse air force providing device 10 is a commercially available device such as an air compressor.
The production system of the present invention comprises: the device comprises a mixing device, a heating device, a tank furnace wire drawing device, an infiltration wire collecting device, a warp machine and a laminated board forming device; uniformly mixing glass fiber raw materials by using a mixing device, conveying the glass fiber raw materials to a tank furnace wire drawing device by using air, heating the tank furnace wire drawing device by using a heating device to melt the raw materials, performing wire drawing molding to obtain glass fiber precursor, coating an impregnating compound on the surface of the glass fiber precursor, collecting the glass fiber precursor to obtain direct roving, and preparing the glass fiber cloth by using a warp machine; and then obtaining the laminated board by using a laminated board forming device. The production equipment is simple, the prepared glass fiber cloth has good compatibility with phenolic resin, and the glass fiber laminated board prepared by the impregnating compound has good mechanical property and mechanical property.
Further, the heating device may comprise a boiler 11 using natural gas as fuel and a heat exchanger 12 between the boiler 11 and the tank furnace drawing device for supplying heat to the tank furnace drawing device to melt the raw material. The boiler 11 may also be connected to an exhaust gas treatment device 14 to prevent pollution. Further, the production system can also include a waste silk recovery device, the waste silk recovery device includes a waste silk blending tank 13 which enables waste silk to be uniformly mixed, and the waste silk blending tank 13 is communicated to the unit kiln 5 through a pipeline to perform melting treatment on the waste silk.
Furthermore, the pulse pneumatic supply device 10 is also communicated with a waste silk mixing tank 13, waste silk is mixed and conveyed to the unit kiln 5 through pneumatic force, the waste silk is recycled, and the cost is saved.
A production method of a high-elasticity modulus and high-strength glass fiber laminated board utilizes the production system and comprises the following steps: weighing raw materials of glass fibers by using the mixing device, conveying the raw materials into the tank furnace wire drawing device, carrying out vitrification and melting treatment on the raw materials by using a heating device, and then carrying out spinning forming; then coating impregnating compound by a monofilament oiling device, wherein the mixture ratio of various substances of the impregnating compound is shown in table 1, example 1 (the unit of each substance in table 1 is part), then, collecting and winding the filaments by a filament collector to obtain direct roving, and preparing the glass fiber cloth by a warp machine; and then obtaining the laminated board by using a laminated board forming device.
The preparation method of the direct twistless roving comprises the following steps:
step 1: dissolving a surfactant in 1/2 deionized water, and then adding a silane coupling agent and uniformly mixing;
step 2: respectively diluting the epoxy resin emulsion and the waterborne polyurethane emulsion with the rest deionized water, adding the diluted epoxy resin emulsion and the rest deionized water into the mixed solution obtained in the step (1), and uniformly mixing;
and step 3: adding a pH regulator into the solution obtained in the step (2), and uniformly mixing to obtain a sizing agent;
and 4, step 4: diluting the impregnating compound to form 8 wt% of aqueous solution, coating the glass fiber, and drying;
and 5: then the direct roving is wound by a direct roving drawing machine to form direct roving and dried.
The high elastic dieThe raw materials and the using amount of the high-strength glass fiber laminated board are shown in Table 2, example 1 (the unit of each substance in Table 2 is part), and the specific process parameters are shown in Table 3, example 1. Weighing phenolic resin, a curing agent, an accelerator and a solvent according to the proportion of the substances in the embodiment in the table 2 for later use, firstly dissolving the curing agent and the accelerator in the solvent, adding the phenolic resin, and uniformly mixing to obtain a mixed glue solution; then uniformly coating the mixed glue solution on glass fiber cloth, and drying at the temperature of 150-; then overlapping the prepregs with more than 2 sheets on a smooth stainless steel plate with two surfaces coated with release agents, sending the smooth stainless steel plate into a common hot press or a vacuum hot press, controlling the temperature at 130-180 ℃, the pressure at 15-20MPa, and carrying out hot press molding for 0.5-24 h to obtain the glass fiber laminated plate. The dosage of the mixed glue solution is 0.08-0.11g/cm compared with the glass fiber cloth2. The glass fiber cloth is a fabric of direct twistless roving, and the type of the glass fiber cloth is 2116 or 7628.
Examples 2 to 6
The contents of the respective substances and the process parameters are shown in tables 1 to 3 as data in examples 2 to 6, respectively, and the other conditions are the same as in example 1.
To further illustrate the beneficial effects of the present application, a comparative example was constructed as follows, using example 5 as an example only, for reasons of space.
Comparative example 1
The conditions were the same as in example 5 except that 3-mercaptopropyltrimethoxysilane was replaced with the same amount of divinyltriaminopropyltriethoxysilane, and the specific ingredients are shown in Table 4 (the unit of each substance in Table 4 is part).
Comparative example 2
The same conditions as in example 5 were followed except that divinyltriaminopropyltriethoxysilane was replaced with the same amount of beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, and the details are shown in Table 4.
Comparative example 3
The same conditions as in example 5 were followed except that β - (3, 4-epoxycyclohexyl) ethyltrimethoxysilane was replaced with the same amount of 3-mercaptopropyltrimethoxysilane, and the specific components are shown in Table 4.
Comparative example 4
The same conditions as in example 5 were followed except that divinyltriaminopropyltriethoxysilane was replaced with the same amount of vinyltriethoxysilane, and the details are shown in Table 4.
Comparative example 5
The conditions were the same as in example 5 except that β - (3, 4-epoxycyclohexyl) ethyltrimethoxysilane was replaced with the same amount of γ -glycidoxypropyltrimethoxysilane, and the specific components are shown in Table 4.
Comparative example 6
The dodecyl dimethyl amine oxide was replaced with the same amount of fatty alcohol-polyoxyethylene ether, and the remaining conditions were the same as in example 5, and the specific components are shown in Table 4.
Comparative example 7
The lauryl disodium sulfosuccinate monoester was replaced with the same amount of fatty alcohol-polyoxyethylene ether, and the remaining conditions were the same as in example 5, and the specific components are shown in table 4.
Comparative example 8
The fatty alcohol-polyoxyethylene ether was replaced with equivalent disodium lauryl sulfosuccinate, and the remaining conditions were the same as in example 5, and the specific components are shown in table 4.
Comparative example 9
The mass ratio of 3-mercaptopropyltrimethoxysilane, divinyltriaminopropyltriethoxysilane, and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane was adjusted to 0.6:1:1, and the remaining conditions were the same as in example 5, and the specific components are shown in Table 4.
Comparative example 10
The mass ratio of fatty alcohol-polyoxyethylene ether, disodium lauryl sulfosuccinate and dodecyl dimethyl amine oxide was adjusted to 0.5:0.5:1, and the remaining conditions were the same as in example 5, and the specific components are shown in table 4.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
Direct roving is prepared by respectively utilizing the impregnating compounds of examples 1-6 and comparative examples 1-10 of the invention, the impregnating compounds are diluted into 8 wt% aqueous solution, the wiredrawing process is 5000 holes drawing 2000tex protofilament, baking at 130 ℃ for 14h, microwave full opening and the like, then a direct roving yarn group is formed through a direct roving wiredrawing machine, the prepared direct roving yarn group is made into glass fiber cloth through a warp machine, then a laminated board is prepared according to relevant process parameters, and the performance test is carried out on the prepared laminated board, and the result is shown in tables 5-6.
TABLE 5
As can be seen from the above table, the disadvantageous fiber cloth prepared by using the sizing agent of the present invention can obtain a laminated board with high elastic modulus and good mechanical properties.
TABLE 6
As can be seen from tables 3 to 4, compared with comparative examples 1 to 5 and 9, by changing the type and proportion relationship of the silane coupling agent of the present invention, the performance of the prepared laminate is reduced in all aspects, which is probably because the functional group in the silane coupling agent with the specific proportion of the present invention enables the prepared glass fiber cloth and the phenolic resin matrix to have better compatibility, and the mechanical and mechanical properties of the laminate are improved.
By changing the kind and ratio of the surfactant in the present invention, the laminate sheets prepared were also reduced in all properties as compared with comparative examples 6 to 8 and comparative example 10. The specific groups in the surfactant can enable the silane coupling agent and the resin emulsion to be well dispersed, enable the resin emulsion to be quickly soaked when contacting with the glass fiber, form a uniform resin emulsion film on the surface of the glass fiber, improve the compatibility of the glass fiber cloth and a phenolic resin matrix, and enable the prepared reinforced material to have good mechanical property and mechanical property.
In conclusion, the 3-mercaptopropyltrimethoxysilane, the divinyltriaminopropyltriethoxysilane, the beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, the fatty alcohol-polyoxyethylene ether, the disodium lauryl sulfosuccinate monoester and the dodecyl dimethyl amine oxide which are in specific proportions in the invention act together with the resin emulsion, so that the glass fiber cloth and the phenolic resin matrix have better compatibility, and the prepared laminated board has better elastic modulus and strength.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and are intended to be within the scope of the invention.
Claims (10)
1. A production system of a high-elasticity modulus and high-strength glass fiber laminated board is characterized by comprising a mixing device, a heating device, a tank furnace wire drawing device, an infiltration wire collecting device, a warp machine and a laminated board forming device;
the mixing device comprises a raw material tank, a stock bin, a weighing device and a mixing and conveying tank, wherein raw materials in the raw material tank are conveyed to the stock bin through pneumatic conveying, the raw materials in the stock bin are weighed by the weighing device and then conveyed to the mixing and conveying tank through a pipeline, the raw materials are uniformly mixed through pneumatic conveying, and then the raw materials are conveyed to the tank furnace wire drawing device through pulse pneumatic conveying;
the tank furnace wire drawing device comprises a unit furnace and an H-shaped passage arranged at the tail end of the unit furnace, wherein the raw materials are melted into molten glass in the unit furnace, then flow to the H-shaped passage, flow out from a platinum bushing in the H-shaped passage, and are drawn by a wire drawing machine to form fiber monofilaments;
the fiber single wires are collected, drawn and wound into direct roving through a drawing machine, and then made into glass fiber cloth through a warp machine;
the laminated board forming device comprises a glue solution mixing tank, a glue dipping tank, an oven, a stacking table and a hot press; the glue solution mixing tank is used for mixing glue solution, the mixed glue solution is conveyed to a glue dipping tank, the surface of the glass fiber cloth is coated with glue through the glue dipping tank, then the glass fiber cloth is conveyed to an oven to be dried, then the obtained prepreg is conveyed to a stacking table, and after the preset number of layers is reached, the prepreg is conveyed to the hot press to be subjected to hot press molding, so that the laminated board is obtained.
2. The system for producing a high elastic modulus high strength glass fiber laminate according to claim 1, wherein the mixing device further comprises an impulse air supply device communicating the raw material tank and the mixing and conveying tank through a pipe.
3. The system for producing a high elastic modulus high strength fiberglass laminate according to claim 2, wherein said heating means comprises a natural gas fueled boiler and a heat exchanger between said boiler and the tank furnace drawing means for supplying heat to said tank furnace drawing means to melt the feedstock.
4. The system for producing a high elastic modulus high strength glass fiber laminate according to claim 3, further comprising a waste recycling device, wherein the waste recycling device comprises a waste mixing tank for mixing waste uniformly, and the waste mixing tank is communicated to the unit kiln through a pipeline for melting waste.
5. The system for producing a high elastic modulus high strength glass fiber laminate according to claim 4, wherein the pulsed air supply means is further connected to a waste wire mixing tank for pneumatically mixing and transporting waste wires into the unit kiln.
6. A method for producing a high elastic modulus high strength glass fiber laminated board, characterized in that the production system of the high elastic modulus high strength glass fiber laminated board according to any one of claims 1 to 5 is used, and comprises: weighing raw materials of glass fibers by using the mixing device, conveying the raw materials into the tank furnace wire drawing device, carrying out vitrification and melting treatment on the raw materials by using a heating device, and then carrying out spinning forming; then coating the impregnating compound by a monofilament oiling device, winding the filaments by a filament collector to obtain direct roving, and manufacturing the glass fiber cloth by a warp machine; and then obtaining the laminated board by using a laminated board forming device.
7. The production method of the high elastic modulus high strength glass fiber laminated board according to claim 6, wherein the high elastic modulus high strength glass fiber laminated board is prepared by coating a glass fiber cloth with a mixed glue solution and then laminating and thermally curing, wherein the mixed glue solution comprises the following components in parts by weight:
the glass fiber cloth is a fabric of direct roving, the direct roving is formed by coating an impregnating compound on the surface of glass fiber, and the impregnating compound comprises the following components in parts by weight:
the silane coupling agent is 3-mercaptopropyltrimethoxysilane, divinyltriaminopropyltriethoxysilane and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane in a mass ratio of 1:0.4-0.6: 1-1.2;
the surfactant is a mixture of fatty alcohol-polyoxyethylene ether, disodium lauryl sulfosuccinate and dodecyl dimethyl amine oxide in a mass ratio of 1:1: 0.5-1.
8. The method for producing the high elastic modulus high strength glass fiber laminate as claimed in claim 7, wherein the sizing agent comprises the following components in parts by weight:
9. the method for producing the high elastic modulus high strength glass fiber laminate as claimed in claim 7 or 8, wherein the epoxy resin emulsion has a molecular weight of 600-; the molecular weight of the aqueous polyurethane emulsion is 1000-3000; the pH regulator is citric acid;
the curing agent is dicyandiamide and/or diaminodiphenylamine; the accelerant is tetramethyl imidazole; the solvent is N-methyl pyrrolidone; the type of the glass fiber cloth is 2116 or 7628.
10. The method for producing the high elastic modulus high strength glass fiber laminate of claim 9, wherein the direct twistless roving is prepared by:
step 1: dissolving a surfactant in a part of deionized water, and then adding a silane coupling agent and uniformly mixing;
step 2: respectively diluting the epoxy resin emulsion and the waterborne polyurethane emulsion with the rest deionized water, adding the diluted epoxy resin emulsion and the rest deionized water into the mixed solution obtained in the step (1), and uniformly mixing;
and step 3: adding a pH regulator into the solution obtained in the step (2), and uniformly mixing to obtain a sizing agent;
and 4, step 4: diluting the impregnating compound to form 5-10 wt% of aqueous solution, coating the glass fiber, and drying;
and 5: then the direct roving is wound by a direct roving drawing machine to form direct roving and dried.
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| CN1054026A (en) * | 1990-06-16 | 1991-08-28 | 刘卞善 | Chemical fibre plate and manufacture method thereof and equipment |
| JPH05163672A (en) * | 1991-12-13 | 1993-06-29 | Shimadzu Corp | Oxynitride glass fiber for composite material and fiber-reinforced plastic |
| JP2010248030A (en) * | 2009-04-16 | 2010-11-04 | Nippon Electric Glass Co Ltd | Glass roving, method for manufacturing glass roving and glass fiber-reinforced composite resin material |
| CN106587658A (en) * | 2016-10-28 | 2017-04-26 | 巨石集团有限公司 | Glass fiber sizing agent and application thereof |
| CN113121106A (en) * | 2021-05-11 | 2021-07-16 | 山东玻纤集团股份有限公司 | Glass fiber production system and method |
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2021
- 2021-09-28 CN CN202111139905.3A patent/CN114103156A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054026A (en) * | 1990-06-16 | 1991-08-28 | 刘卞善 | Chemical fibre plate and manufacture method thereof and equipment |
| JPH05163672A (en) * | 1991-12-13 | 1993-06-29 | Shimadzu Corp | Oxynitride glass fiber for composite material and fiber-reinforced plastic |
| JP2010248030A (en) * | 2009-04-16 | 2010-11-04 | Nippon Electric Glass Co Ltd | Glass roving, method for manufacturing glass roving and glass fiber-reinforced composite resin material |
| CN106587658A (en) * | 2016-10-28 | 2017-04-26 | 巨石集团有限公司 | Glass fiber sizing agent and application thereof |
| CN113121106A (en) * | 2021-05-11 | 2021-07-16 | 山东玻纤集团股份有限公司 | Glass fiber production system and method |
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