CN108714954A - Carbon-fibre reinforced epoxy resin stalk composite board and preparation method thereof - Google Patents
Carbon-fibre reinforced epoxy resin stalk composite board and preparation method thereof Download PDFInfo
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- CN108714954A CN108714954A CN201810409058.XA CN201810409058A CN108714954A CN 108714954 A CN108714954 A CN 108714954A CN 201810409058 A CN201810409058 A CN 201810409058A CN 108714954 A CN108714954 A CN 108714954A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
- C09J129/02—Homopolymers or copolymers of unsaturated alcohols
- C09J129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/166—Magnesium halide, e.g. magnesium chloride
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3063—Magnesium sulfate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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Abstract
The present invention provides a kind of preparation method of carbon-fibre reinforced epoxy resin stalk composite board, this method includes first mixing stalk particle with carbon-fibre reinforced epoxy resin pour mass, then cold pressing treatment of mating formation is carried out after being mixed with diaminodiphenylsulfone curing agent, finally use water-soluble fire-resisting adhesive that the polylith obtained blank plate of cold pressing of mating formation is carried out adhering and pressing processing, to obtain carbon-fibre reinforced epoxy resin stalk composite board.The carbon-fibre reinforced epoxy resin stalk composite board has higher internal bond strength, higher bending strength and preferable flame retardant property.
Description
Technical field
The present invention relates to a kind of wood-based plate and preparation method thereof, especially a kind of carbon-fibre reinforced epoxy resin stalk is compound
Plate and preparation method thereof.
Background technology
Artificial straw composite plate is because with investment of production is few, low energy consumption, cost is few, to the not high spy of quality requirements of raw materials
Point becomes the important component of wood-based plate.Wherein, what China produced every year can be used as what wood-based plate raw material used
Agricultural crop straw yield is about 600,000,000 tons or more, but due to technology restriction, straw circulating reuse ratio is not high always.Existing skill
In art, starts to be applied to the fields such as furniture, packaging using agricultural crop straw as the wood-based plate that part raw material manufacture, therefore, expand
Grande culture object stalk is one of the effective way realized stalk resource and recycled using scale as wood-based plate raw material.But
It is that the structural strength and fire protecting performance of existing artificial board of straw be not high, causes artificial board of straw service life shorter and fire-retardant
Performance is insufficient.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of carbon-fibre reinforced epoxy resin stalk composite boards
And preparation method thereof.
To achieve the goals above, the technical solution adopted in the present invention is：A kind of carbon-fibre reinforced epoxy resin stalk
The preparation method of composite plate, includes the following steps：
It mixes according to the mass ratio of stalk particle and carbon-fibre reinforced epoxy resin pour mass and is（5~9）：（0.4~0.7）'s
Ratio is added the carbon-fibre reinforced epoxy resin pour mass into the stalk particle and is mixed, and premix is formed；
Cold pressing addition into the premix of mating formation accounts for the carbon-fibre reinforced epoxy resin cast weight 3%~5.3%
Diaminodiphenylsulfone curing agent is warming up to 50 DEG C~95 DEG C stirrings and obtains mixture in 0.5 hour~1.5 hours, by the mixing
Material is mated formation on forming belt, and slab woollen is formed；Cold pressing treatment is carried out to the slab woollen and obtains blank plate；
Blank plate described in polylith is stacked bonding by adhering and pressing using water-soluble fire-resisting adhesive, at cold moudling, drying
Carbon-fibre reinforced epoxy resin stalk composite board is made after reason.
Based on above-mentioned, the carbon-fibre reinforced epoxy resin pour mass is through the following steps that obtained：
It weighs 300g~500g acyl chlorides carbon nano tubes to be placed in vacuum drying oven, 30 DEG C~50 DEG C drying 2h~4h are subsequently placed in
In reaction kettle, and 8L~10L thionyl chlorides and the N of 300mL~500mL is added, N '-dimethyl formamide forms mixed liquor；It will
Mixed liquor is heated to 50 DEG C~70 DEG C heat preservation 18h~for 24 hours, is evaporated under reduced pressure, the thionyl chloride is steamed, temperature after reaction
It is cooled to room temperature and 8L~10L anhydrous tetrahydro furans stirring 0.5h~2h is added into the reaction kettle, through filtering, grinding, vacuum
It is dried to obtain acyl chlorides carbon nano tube；
It weighs acyl chlorides carbon nano tube described in 300g~500g and is placed in addition 8L~10L ethylenediamines in reaction kettle, lead to nitrogen and carry out
Stirring at normal temperature 1.5h~2h is then heated to 80 DEG C~110 DEG C heat preservation 55h~72h, and temperature, which is cooled to room temperature, is added 8L~10L
Anhydrous tetrahydro furan stirs 1h~2h, and product obtains aminated carbon nano tube through filtering, grinding, vacuum drying；
It is carried out at vacuum drying after the aminated carbon nano tube is mixed 50 DEG C~60 DEG C stirring 10h~12h with epoxy resin
Reason, obtains the carbon-fibre reinforced epoxy resin pour mass.
Based on above-mentioned, the water-soluble fire-resisting adhesive is through the following steps that obtained：
According to mass parts, weigh first 1~2 part of magnesium sulfate, 0.2~1 part of magnesium chloride, 2~8 parts of water, 0.5~1 part of polyvinyl alcohol,
0.1~0.5 part of boron phenol mixture, 0.5~1.5 part of magnesia, 0.05~0.2 part of phosphate, 0.05~0.2 part of ammonium polyphosphate, first
0.5~2.0 part of sour calcium；Then it carries out the magnesium chloride, the polyethylene alcohol and water to be mixed to prepare base soln, by the base
Plinth solution and the magnesium sulfate, the boron phenol mixture, the magnesia, the phosphate, the ammonium polyphosphate and the formic acid
Calcium is mixed, and the water-soluble fire-resisting adhesive is made.
Based on above-mentioned, the phosphate be diammonium hydrogen phosphate, ammonium dihydrogen phosphate, calcium monohydrogen phosphate, one kind in calcium phosphate or
Several combinations.
Based on above-mentioned, a diameter of 0.5mm~50mm of the stalk particle, the stalk particle be by crush straw,
Wheat straw or corn stalk are simultaneously sieved.
The present invention also provides a kind of preparation methods of carbon-fibre reinforced epoxy resin stalk composite board, it is by above-mentioned preparation
Made from method.
It is measured according to method as defined in GB/T 17657-2013：The carbon-fibre reinforced epoxy resin straw prepared by this method
The density of stalk composite board is 400~1000 Kg/m3；Static bending strength in normal state >=18 megapascal/millimeter；The elasticity of flexure
Modulus >=2200 megapascal/millimeter；Internal bond strength average value >=0.95 megapascal/millimeter；Surface bonding strength average value >=1.3
Megapascal/millimeter.It is strong with higher bending strength and interior combination to be indicated above the carbon-fibre reinforced epoxy resin stalk composite board
Degree.
Burning examination is carried out to the carbon-fibre reinforced epoxy resin stalk composite board according to method as defined in GB 8624-2012
It tests, can reach B1 grades, therefore the carbon-fibre reinforced epoxy resin stalk composite board has preferable flame retardant property.
The carbon-fibre reinforced epoxy resin stalk composite board is according to GB 18580-2001《Indoor decorating and refurnishing materials people
Form aldehyde release in plate and its product is made to limit the quantity》The condensed steam water and climate box method of defined measure, can reach E1 grades and its with
Upper standard, therefore the carbon-fibre reinforced epoxy resin answers stalk plywood with good environmental-protecting performance.
Compared with prior art, carbon-fibre reinforced epoxy resin stalk made from preparation method provided by the present invention is compound
Plate has the following advantages：Raw material of the carbon-fibre reinforced epoxy resin stalk composite board using agricultural crop straw as artificial composite plank
Source further solves the not high problem of China's agricultural crop straw recovery utilization rate while instead of primary timber.Into
One step, stalk particle is wrapped up by using carbon-fibre reinforced epoxy resin pour mass, utilizes amine functional groups and epoxy group
The ring-opening reaction of generation simultaneously participates in the interface enhancing between the cross-linked network structure and carbon fiber and resin matrix of resin matrix,
The caking property between stalk particle, carbon fiber and resin matrix is improved, multiple dimensioned collaboration enhancing, toughening are realized, to carry
The high interlayer shear and shock resistance of stalk composite board.
Further, each raw material magnesia in the water-soluble fire-resisting adhesive, magnesium chloride, tertiary sodium phosphate, poly- second
Enol and ammonium polyphosphate etc. have fire retardation, and the carbon-fibre reinforced epoxy resin stalk composite board knot is made after repressed molding
Structure is stablized, and has flame retardant property, can substitute existing wooden flake board, can be directly used for hotel, market,
The building fields such as school, family.
Specific implementation mode
Below with specific embodiment, it is multiple to further explain carbon-fibre reinforced epoxy resin stalk provided by the invention
The preparation method of plywood.
Embodiment 1
The present embodiment provides a kind of preparation methods of carbon-fibre reinforced epoxy resin stalk composite board, include the following steps：
Mixing is 5 according to the mass ratio of stalk particle and carbon-fibre reinforced epoxy resin pour mass：0.4 ratio is to the straw
The carbon-fibre reinforced epoxy resin pour mass is added in stalk particle to be mixed, and premix is formed；
Cold pressing addition into the premix of mating formation accounts for the diamino of the carbon-fibre reinforced epoxy resin cast weight 3%
Diphenyl sulfone curing agent is warming up to 50 DEG C of stirrings and obtains mixture in 1.5 hours, the mixture is mated formation on forming belt, is formed
Slab woollen；Cold pressing treatment is carried out to the slab woollen, obtains blank plate；
Blank plate described in polylith is stacked bonding by adhering and pressing using water-soluble fire-resisting adhesive, at cold moudling, drying
Carbon-fibre reinforced epoxy resin stalk composite board is made after reason.
Wherein, the carbon-fibre reinforced epoxy resin pour mass is through the following steps that obtained：
It weighs 500g acyl chlorides carbon nano tubes to be placed in vacuum drying oven, 50 DEG C of drying 4h are subsequently placed in reaction kettle, and be added
The N of 10L thionyl chlorides and 500mL, N '-dimethyl formamide form mixed liquor；Mixed liquor is heated to 50 DEG C of heat preservation 18h, instead
Vacuum distillation steams thionyl chloride after answering, and is cooled to room temperature and 10L anhydrous tetrahydro furans stirring 2h is added into reaction kettle,
Acyl chlorides carbon nano tube is obtained through filtering, grinding, vacuum drying；
It weighs acyl chlorides carbon nano tube described in 500g and is placed in addition 10L ethylenediamines in reaction kettle, lead to nitrogen and carry out stirring at normal temperature 2h,
Be then heated to 80 DEG C heat preservation 55h, be cooled to room temperature be added 10L anhydrous tetrahydro furans stirring 1h, product through filtering, grinding, very
Sky is dried to obtain aminated carbon nano tube；
Progress vacuum drying treatment obtains the carbon after the aminated carbon nano tube is mixed 60 DEG C of stirring 12h with epoxy resin
Fiber reinforced epoxy resin pour mass.
The water-soluble fire-resisting adhesive is through the following steps that obtained：
According to mass parts, 1 part of magnesium sulfate, 0.2 part of magnesium chloride, 2 parts of water, 0.5 part of polyvinyl alcohol, boron phenol mixture 0.1 are weighed first
Part, 0.5 part of magnesia, 0.05 part of diammonium hydrogen phosphate, 0.2 part of ammonium polyphosphate, 0.5 part of calcium formate；Then by the magnesium chloride, institute
It states polyethylene alcohol and water to carry out being mixed to prepare base soln, by the base soln and the magnesium sulfate, the boron phenol mixture, institute
It states magnesia, the phosphate, the ammonium polyphosphate and the calcium formate to be mixed, the water-soluble fire-resisting is made and coheres
Agent.
Below to the carbon-fibre reinforced epoxy resin stalk composite board finished product made from preparation method provided in this embodiment
It makes a service test.
It burns to the carbon-fibre reinforced epoxy resin stalk composite board according to method as defined in GB 8624-2012
Experiment, result are：The W/s of fire growth rate index≤25；The MJ of total heat release in 600s≤3.5；Flame is laterally spread
Length<Sample edge；The mm of flame cusp height≤50；Flue gas generating rate index≤1m2/s2；Total smoke-producing amount≤50 in 600 s
m 2；Density flaming droplet/particle：Without density flaming droplet/particle in 600 s；Whether filter paper is ignited：Filter paper is not ignited；
Produce smoke toxicity：Reach ZA2Grade, meets B-s1 as defined in GB 8624-2012, d0, t1 grade standard.
In addition, the density of carbon-fibre reinforced epoxy resin stalk composite board obtained by this method is 650 Kg/m3；It is described
Static bending strength >=18 megapascal/the millimeter of carbon-fibre reinforced epoxy resin stalk composite board in normal state；The modulus of elasticity in static bending
>=2200 megapascal/millimeter；Internal bond strength average value >=0.95 megapascal/millimeter；Surface bonding strength average value >=1.3 million
Pa/millimeter.
Embodiment 2
The present embodiment provides it is a kind of prepare carbon-fibre reinforced epoxy resin stalk composite board and method, it is different from embodiment 1
It is：This approach includes the following steps：
Mixing is 9 according to the weight ratio of stalk particle and carbon-fibre reinforced epoxy resin pour mass：0.7 ratio is to the straw
The carbon-fibre reinforced epoxy resin pour mass is added in stalk particle to be mixed, and premix is formed；
Cold pressing addition into the premix of mating formation accounts for the diamino of the carbon-fibre reinforced epoxy resin cast weight 4%
Diphenyl sulfone curing agent is warming up to 95 DEG C of stirrings and obtains mixture in 0.5 hour, the mixture is mated formation on forming belt, is formed
Slab woollen；Cold pressing treatment is carried out to the slab woollen, obtains blank plate；
Blank plate described in polylith is stacked bonding by adhering and pressing using water-soluble fire-resisting adhesive, at cold moudling, drying
The carbon-fibre reinforced epoxy resin stalk composite board is made after reason.
Below to the carbon-fibre reinforced epoxy resin stalk composite board finished product made from preparation method provided in this embodiment
It makes a service test.
It burns to the carbon-fibre reinforced epoxy resin stalk composite board according to method as defined in GB 8624-2012
Experiment, result are：The W/s of fire growth rate index≤25；The MJ of total heat release in 600s≤3.5；Flame is laterally spread
Length<Sample edge；The mm of flame cusp height≤50；Flue gas generating rate index≤1m2/s2；Total smoke-producing amount≤50 in 600 s
m2；Density flaming droplet/particle：Without density flaming droplet/particle in 600 s；Whether filter paper is ignited：Filter paper is not ignited；
Produce smoke toxicity：Reach ZA2Grade, meets B-s1 as defined in GB 8624-2012, d0, t1 grade standard.
In addition, the density of the carbon-fibre reinforced epoxy resin stalk composite board is 680 Kg/m3；The fibre reinforced
Static bending strength >=18.3 megapascal/the millimeter of epoxy resin stalk composite board in normal state；The modulus of elasticity in static bending >=2,180,000,000
Pa/millimeter；Internal bond strength average value >=1.2 megapascal/millimeter；Surface bonding strength average value >=1.2 megapascal/millimeter.
Embodiment 3
The present embodiment provides a kind of methods preparing carbon-fibre reinforced epoxy resin stalk composite board, as different from Example 1：
Carbon-fibre reinforced epoxy resin pour mass is through the following steps that obtained described in the embodiment：
It weighs 300g acyl chlorides carbon nano tubes to be placed in vacuum drying oven, 30 DEG C of drying 2h are subsequently placed in reaction kettle, and 8L is added
The N of thionyl chloride and 300mL, N '-dimethyl formamide form mixed liquor；Mixed liquor is heated to 70 DEG C of heat preservation 18h, reaction knot
Vacuum distillation steams thionyl chloride after beam, is cooled to room temperature and 8L anhydrous tetrahydro furans stirring 2h is added into reaction kettle, pass through
Filter, grinding, vacuum drying obtain acyl chlorides carbon nano tube；
It weighs acyl chlorides carbon nano tube described in 500g and is placed in addition 8L ethylenediamines in reaction kettle, lead to nitrogen and carry out stirring at normal temperature
1.5h is then heated to 80 DEG C of heat preservation 55h, is cooled to room temperature and 8L anhydrous tetrahydro furans stirring 2h is added, product is through filtering, grinding
Mill, vacuum drying obtain aminated carbon nano tube；
Progress vacuum drying treatment obtains the carbon after the aminated carbon nano tube is mixed 50 DEG C of stirring 12h with epoxy resin
Fiber reinforced epoxy resin pour mass.
Below to the carbon-fibre reinforced epoxy resin stalk composite board finished product made from preparation method provided in this embodiment
It makes a service test.
It burns to the carbon-fibre reinforced epoxy resin stalk composite board according to method as defined in GB 8624-2012
Experiment, result are：The W/s of fire growth rate index≤25；The MJ of total heat release in 600s≤3.5；Flame is laterally spread
Length<Sample edge；The mm of flame cusp height≤50；Flue gas generating rate index≤1m2/s2；Total smoke-producing amount≤50 in 600 s
m2；Density flaming droplet/particle：Without density flaming droplet/particle in 600 s；Whether filter paper is ignited：Filter paper is not ignited；
Produce smoke toxicity：Reach ZA2Grade, meets B-s1 as defined in GB 8624-2012, d0, t1 grade standard.
In addition, the density of the carbon-fibre reinforced epoxy resin stalk composite board is 700Kg/m3；The fibre reinforced
Static bending strength >=18.1 megapascal/the millimeter of epoxy resin stalk composite board in normal state；The modulus of elasticity in static bending >=2,230,000,000
Pa/millimeter；Internal bond strength average value >=1.5 megapascal/millimeter；Surface bonding strength average value >=1.3 megapascal/millimeter.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
Invention is explained in detail with reference to preferred embodiment for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific implementation mode of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (6)
1. a kind of preparation method of carbon-fibre reinforced epoxy resin stalk composite board, includes the following steps：
It mixes according to the mass ratio of stalk particle and carbon-fibre reinforced epoxy resin pour mass and is（5~9）：（0.4~0.7）'s
Ratio is added the carbon-fibre reinforced epoxy resin pour mass into the stalk particle and is mixed, and premix is formed；
Cold pressing addition into the premix of mating formation accounts for the carbon-fibre reinforced epoxy resin cast weight 3%~5.3%
Diaminodiphenylsulfone curing agent is warming up to 50 DEG C~95 DEG C stirrings and obtains mixture in 0.5 hour~1.5 hours, by the mixing
Material is mated formation on forming belt, and slab woollen is formed；Cold pressing treatment is carried out to the slab woollen and obtains blank plate；
Blank plate described in polylith is stacked bonding by adhering and pressing using water-soluble fire-resisting adhesive, at cold moudling, drying
Carbon-fibre reinforced epoxy resin stalk composite board is made after reason.
2. preparation method according to claim 1, which is characterized in that the carbon-fibre reinforced epoxy resin pour mass is logical
It crosses made from following steps：
It weighs 300g~500g acyl chlorides carbon nano tubes to be placed in vacuum drying oven, 30 DEG C~50 DEG C drying 2h~4h are subsequently placed in
In reaction kettle, and 8L~10L thionyl chlorides and the N of 300mL~500mL is added, N '-dimethyl formamide forms mixed liquor；It will
Mixed liquor is heated to 50 DEG C~70 DEG C heat preservation 18h~for 24 hours, is evaporated under reduced pressure, the thionyl chloride is steamed, temperature after reaction
It is cooled to room temperature and 8L~10L anhydrous tetrahydro furans stirring 0.5h~2h is added into the reaction kettle, through filtering, grinding, vacuum
It is dried to obtain acyl chlorides carbon nano tube；
It weighs acyl chlorides carbon nano tube described in 300g~500g and is placed in addition 8L~10L ethylenediamines in reaction kettle, lead to nitrogen and carry out
Stirring at normal temperature 1.5h~2h is then heated to 80 DEG C~110 DEG C heat preservation 55h~72h, and temperature, which is cooled to room temperature, is added 8L~10L
Anhydrous tetrahydro furan stirs 1h~2h, and product obtains aminated carbon nano tube through filtering, grinding, vacuum drying；
It is carried out at vacuum drying after the aminated carbon nano tube is mixed 50 DEG C~60 DEG C stirring 10h~12h with epoxy resin
Reason, obtains the carbon-fibre reinforced epoxy resin pour mass.
3. preparation method according to claim 1 or 2, which is characterized in that the water-soluble fire-resisting adhesive be by with
Made from lower step：
According to mass parts, weigh first 1~2 part of magnesium sulfate, 0.2~1 part of magnesium chloride, 2~8 parts of water, 0.5~1 part of polyvinyl alcohol,
0.1~0.5 part of boron phenol mixture, 0.5~1.5 part of magnesia, 0.05~0.2 part of phosphate, 0.05~0.2 part of ammonium polyphosphate, first
0.5~2.0 part of sour calcium；Then it carries out the magnesium chloride, the polyethylene alcohol and water to be mixed to prepare base soln, by the base
Plinth solution and the magnesium sulfate, the boron phenol mixture, the magnesia, the phosphate, the ammonium polyphosphate and the formic acid
Calcium is mixed, and the water-soluble fire-resisting adhesive is made.
4. preparation method according to claim 3, which is characterized in that the phosphate is diammonium hydrogen phosphate, biphosphate
The combination of one or more of ammonium, calcium monohydrogen phosphate, calcium phosphate.
5. preparation method according to claim 4, which is characterized in that a diameter of 0.5mm~50mm of the stalk particle,
The stalk particle is by crushing straw, wheat straw or corn stalk and being sieved to obtain.
6. a kind of carbon-fibre reinforced epoxy resin stalk composite board, which is characterized in that it is by any one of Claims 1 to 5 institute
Made from the preparation method stated.
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Cited By (1)
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| CN109837041A (en) * | 2019-02-22 | 2019-06-04 | 东莞市宏晟木业有限公司 | A kind of manufacturing process of fire retarding wood protection glue and fire-proof plate |
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Application publication date: 20181030 |