CN110092995A - A kind of basalt fibre composite plate and preparation method thereof - Google Patents
A kind of basalt fibre composite plate and preparation method thereof Download PDFInfo
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- CN110092995A CN110092995A CN201910467203.4A CN201910467203A CN110092995A CN 110092995 A CN110092995 A CN 110092995A CN 201910467203 A CN201910467203 A CN 201910467203A CN 110092995 A CN110092995 A CN 110092995A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of 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 a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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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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- 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
- C08K7/10—Silicon-containing compounds
Abstract
The present invention provides a kind of basalt fibre composite boards and preparation method thereof, belong to composite board technical field, it is prepared by the raw material for including following parts by weight: 50 parts of polyvinyl chloride, 65 parts of calcium powder, 10~15 parts of basalt fibre, the length of the basalt fibre be 9~20mm, 0.4~0.6 part of AC foaming agent, 4~5 parts of foaming control agent etc..Polyvinyl chloride of the invention foams under the action of foaming agent and foaming control agent to be formed bubble and provides condition for the uniform incorporation of calcium powder, and the uniform incorporation of calcium powder improves the mechanical property of basalt fibre composite board；Meanwhile the length adjustment of basalt fibre is 9~20mm by the present invention, so that basalt fibre is macroscopically being connected polyvinyl chloride, is improved the bending strength of basalt fibre composite board.Embodiment statistics indicate that: the present invention gained basalt fibre composite board bending strength be 10.2~11.2MPa.
Description
Technical field
The present invention relates to composite plate technical fields more particularly to a kind of basalt fibre composite plate and preparation method thereof.
Background technique
Basalt fibre is basalt building stones after 1450~1500 DEG C of meltings, is drawn by platinum-rhodium alloy bushing high speed
Continuous fiber made of system.Since basalt fibre has excellent heat-resisting quantity, the fire prevention for making it be usually used in composite material adds
Add agent.Since basalt fibre sheet is as filamentous fibrous matter, composite wood can also be improved by being added in composite material
The mechanical property of material.
When preparing composite board material using basalt fibre usually felted object is made in basalt fibre by the prior art
Matter is as one layer in composite plate, or basalt fibre is mixed with resin compound with other stratified materials after reinforcing material
Form basalt fibre reinforcing material.For example, application No. is 201710961489.2 Chinese patents to disclose a kind of basalt
Fibre reinforced phenolic sandwich composite board and its moulding process, including upper layer basalt fibre enhancing phenolic board, PMI cystosepiment with
And the basalt fibre of lower layer enhances phenolic board.Application No. is 201110152574.7 Chinese patent disclose it is a kind of novel profound
Military rock fiber wall insulated board and its manufacturing method impregnate high-temperature-resistant adhesive by basalt fibre Nomex, through high temperature and pressure
Compression plate made of compacting.Application No. is 201711494441.1 Chinese patent, to disclose a kind of basalt fibre for building multiple
Plywood, including construction wall, construction wall include at least three layers, and middle layer is net made of basalt fibre/reinforcing bar composite reinforcing
Network plate structure layer, the second layer are heat preservation rock layer, and outermost layer is finish coat.
Application No. is 201811037019.8 Chinese patents to disclose a kind of modeling wood composite board, by include polyvinyl chloride,
Stabilizer, fire retardant, foaming agent, wood powder, bamboo powder, aluminate coupling agent, terpene resin, ceramic fibre, basalt fibre, diatom
Native, calcium carbonate powder raw material is prepared；Application No. is 201811153485.2 Chinese patents to disclose a kind of high intensity
Flame-retardant wood-plastic material, including following raw material wood dust, resin, treated basalt fiber, magnesium salt whisker, nanometer calcium carbonate, heat are steady
Determine agent, lubricant, solubilizer, nano zine oxide, graphene, antimony oxide and magnesium hydroxide.The above-mentioned prior art or it is
It basalt fibre is used with other fiber composites or is reused basalt fibre is modified, there are basalt fibres
Benefit inconvenient for use, and the intensity of obtained Wood plastic boards needs to be further increased.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of basalt composite board and preparation method thereof, it is of the invention
Basalt fibre composite board directlys adopt basalt fibre, by the effect with other raw materials, so that gained basalt fibre
Composite board has excellent tensile strength.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of basalt fibre composite boards, are prepared by the raw material for including following parts by weight:
50 parts of polyvinyl chloride, 65 parts of calcium powder, 10~15 parts of basalt fibre, 0.4~0.6 part of AC foaming agent, 4~5 parts of foaming control agent,
2.5~3 parts of stabilizer, 2.5~2.8 parts of CPE plasticizer, 0.3~0.7 part of PE wax, 0.3~0.8 part of stearic acid, calcium stearate
0.3~0.5 part, 0.3~0.6 part of zinc stearate；The length of the basalt fibre is 9~20mm.
Preferably, the stabilizer includes calcium zinc stabilizer.
Preferably, the partial size of the calcium powder is 800~1200 mesh.
Preferably, the foaming control agent includes 530 type foaming control agents.
The present invention also provides the preparation method of the basalt fibre composite board described in above-mentioned technical proposal, including it is following
Step:
Raw material is successively subjected to high temperature mixing and low-temperature mixed, obtains mixed material；
The mixed material is squeezed out through eight sections, obtains extruded material；
The extruded material is formed, the basalt fibre composite board is obtained.
Preferably, the temperature of the high temperature mixing is 115~120 DEG C, and the time is 15~20min.
Preferably, the high temperature mixing carries out under stirring conditions, and the revolving speed of the stirring is 1200~1500r/
min。
Preferably, the temperature of the low-temperature mixed is 50~70 DEG C, and the time is 5~10min.
Preferably, described eight sections squeeze out include the area that successively carries out squeezes out, 2nd area squeeze out, 3rd area squeeze out, 4th area squeeze out,
5th area squeeze out, 6th area squeeze out, 7th area squeeze out and 8th area squeeze out；The temperature that one area squeezes out is 140~150 DEG C；2nd area
The temperature of extrusion is 160~165 DEG C；The temperature that 3rd area squeezes out is 170~175 DEG C；The temperature that 4th area squeezes out is 175
~180 DEG C；5th area extrusion temperature is 160~165 DEG C；6th area extrusion temperature is 160~165 DEG C, and 7th area is squeezed
Temperature is 160~165 DEG C out；8th area extrusion temperature is 160~165 DEG C.
Preferably, the temperature of the sizing is 8~13 DEG C.
The present invention provides a kind of basalt fibre composite boards, are prepared by the raw material for including following parts by weight:
50 parts of polyvinyl chloride, 65 parts of calcium powder, 10~15 parts of basalt fibre, 0.4~0.6 part of AC foaming agent, 4~5 parts of foaming control agent,
2.5~3 parts of stabilizer, 2.5~2.8 parts of CPE plasticizer, 0.3~0.7 part of PE wax, 0.3~0.8 part of stearic acid, calcium stearate
0.3~0.5 part, 0.3~0.6 part of zinc stearate；The length of the basalt fibre is 9~20mm.Polyvinyl chloride of the invention
The bubble of formation of foaming under the action of foaming agent and foaming control agent provides condition for the uniform incorporation of calcium powder, and calcium powder is equal
It is even to mix the mechanical property for improving basalt fibre composite plate；Meanwhile the present invention by the length adjustment of basalt fibre be 9~
20mm enables basalt fibre macroscopically connecting polyvinyl chloride；The double action of calcium powder and basalt fibre, mentions
The high bending strength of basalt fibre composite board.Embodiment statistics indicate that: the resulting basalt fibre of the present invention is compound
The bending strength of plate is 10.2~11.2MPa.
Specific embodiment
The present invention provides a kind of basalt fibre composite boards, are prepared by the raw material for including following parts by weight:
50 parts of polyvinyl chloride, 65 parts of calcium powder, 10~15 parts of basalt fibre, 0.4~0.6 part of AC foaming agent, 4~5 parts of foaming control agent,
2.5~3 parts of stabilizer, 2.5~2.8 parts of CPE plasticizer, 0.3~0.7 part of PE wax, 0.3~0.8 part of stearic acid, calcium stearate
0.3~0.5 part, 0.3~0.6 part of zinc stearate；The length of the basalt fibre is 9~20mm.
The raw material of preparation basalt fibre composite board of the present invention includes the polyvinyl chloride that parts by weight are 50 parts.The present invention
Polyvinyl chloride be composite board matrix, ensure that composite board have plastics basic performance.
The raw material of preparation basalt fibre composite board of the present invention includes the calcium powder that parts by weight are 65 parts；The calcium powder
Partial size is preferably 800~1200 mesh.Calcium powder of the invention is reinforcing material, can be improved the mechanical property of composite board；This hair
The bright particle size adjustment by calcium powder is 800~1200 mesh, and calcium powder is enable to mix in the stomata of foamed polyvinyl chloride, poly- by increasing
The internal intensity of vinyl chloride improves the bending strength of final composite board.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The basalt fibre that number is 10~15 parts；Preferably 11~14 parts, further preferably 12~13 parts；The basalt fibre
Length be preferably 9~20mm, further preferably 12~15mm.The present invention by the length adjustment of basalt fibre be 9~
20mm can macroscopically link together polyvinyl chloride, enhance in conjunction with the internal intensity of calcium powder, improve basalt jointly
The bending strength of fiber composite board.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
0.4~0.6 part of number of AC foaming agent, preferably 0.5 part.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The foaming control agent that number is 4~5 parts, preferably 4.5 parts；The foaming control agent preferably includes 530 type foaming control agents.This
The 530 type foaming control agents and AC foaming agent of invention adjust the foaming of polyvinyl chloride jointly, form polyvinyl chloride uniformly tiny
Bubble, be conducive to calcium powder it is uniform incorporation and doping, to improve the mechanical property of composite board.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The stabilizer that number is 2.5~3 parts, preferably 2.6~2.9 parts, further preferably 2.7~2.8 parts；The stabilizer is preferred
Including calcium zinc stabilizer.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The CPE plasticizer that number is 2.5~2.8 parts, preferably 2.6~2.7 parts.CPE plasticizer of the invention can be improved basalt
The plasticity of fiber composite plate.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The PE wax that number is 0.3~0.7 part, preferably 0.4~0.6 part, further preferably 0.5 part.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
Number is 0.3~0.8 part of stearic acid, preferably 0.4~0.7 part, further preferably 0.5~0.6 part.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
Number be 0.3~0.5 part of calcium stearate, preferably 0.4 part.
On the basis of the parts by weight of the calcium powder, the raw material for preparing basalt fibre composite board of the present invention includes weight
The zinc stearate that number is 0.3~0.6 part, preferably 0.4~0.5 part.
Stearic acid, zinc stearate and calcium stearate of the invention as lubricant, can make plastic substrate polyvinyl chloride with
Inorganic material calcium powder and basalt fibre are sufficiently mixed, the common mechanical property for enhancing composite board.
The present invention also provides the preparation method of the basalt fibre composite board described in above-mentioned technical proposal, including it is following
Step:
Raw material is successively subjected to high temperature mixing and low-temperature mixed, obtains mixed material；
The mixed material is squeezed out through eight sections, obtains extruded material；
The extruded material is formed, the basalt fibre composite board is obtained.
Raw material is successively carried out high temperature mixing and low-temperature mixed by the present invention, obtains mixed material.
The addition sequence when present invention mixes raw material is not specifically limited.In the present invention, the temperature of the high temperature mixing
Preferably 115~120 DEG C of degree；The time of the high temperature mixing is preferably 15~20min.In the present invention, the high temperature mixing
It is preferred that carrying out under stirring conditions, the revolving speed of the stirring is preferably 1200~1500r/min.
After the completion of high temperature mixing of the invention, it is preferred to use high temperature mix products are cooled to low-temperature mixed temperature by cold water pipe
Carry out low-temperature mixed.
In the present invention, the temperature of the low-temperature mixed is preferably 50~70 DEG C, further preferably 55~65 DEG C, more excellent
It is selected as 60 DEG C；The time of the low-temperature mixed is preferably 5~10min.
High temperature mixing of the invention is sufficiently mixed raw material, and low-temperature mixed reduces the temperature of raw material to enter next work
The extrusion of sequence.
After obtaining mixed material, the present invention squeezes out the mixed material through eight sections, obtains extruded material.
In the present invention, eight sections of extrusions preferably include the area successively carried out extrusion, 2nd area squeeze out, 3rd area squeeze out,
4th area squeeze out, 5th area squeeze out, 6th area squeeze out, 7th area squeeze out and 8th area squeeze out.In the present invention, the temperature that an area squeezes out is excellent
It is selected as 14~150 DEG C；The temperature that 2nd area squeezes out is preferably 160~165 DEG C；The temperature that 3rd area squeezes out is preferably 170
~175 DEG C；The temperature that 4th area squeezes out is preferably 175~180 DEG C；5th area extrusion temperature is preferably 160~165 DEG C；
6th area extrusion temperature is preferably 160~165 DEG C, and 7th area extrusion temperature is preferably 160~165 DEG C；8th area is squeezed
Temperature is preferably 160~165 DEG C out.
After obtaining extruded material, the extruded material is formed by the present invention, obtains the basalt fibre composite board.?
In the present invention, the temperature of the sizing is preferably 8~13 DEG C.Sizing of the invention carries out preferably in stock mould.
Basalt fibre composite board provided by the invention and preparation method thereof is carried out below with reference to embodiment detailed
Illustrate, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
By polyvinyl chloride 50kg, calcium powder (1200 mesh) 65kg, length is 12mm basalt fibre 15kg, AC foaming agent
0.5kg parts, 530 type foaming control agent 4kg, calcium zinc stabilizer 3kg, CPE plasticizer 2.5kg, PE wax 0.5kg, stearic acid
0.3kg, calcium stearate 0.5kg and zinc stearate 0.4kg are in 120 DEG C of high temperature mixing 20min；Then high temperature is mixed with cold water pipe
Material is cooled to 50 DEG C of progress low-temperature mixed 5min, obtains mixed material；
Mixed material is successively squeezed out into (140 DEG C) through an area, 2nd area squeeze out (160 DEG C), 3rd area squeeze out (170 DEG C), 4th area
It squeezes out (175 DEG C), 5th area extrusion (160 DEG C), 6th area extrusion (160 DEG C), 7th area extrusion (165 DEG C) and 8th area and squeezes out (165 DEG C),
Obtain extruded material；
The extruded material is placed in stock mould and is carried out shaping in 8 DEG C, the basalt fibre composite board is obtained.
Embodiment 2
By polyvinyl chloride 50kg, calcium powder (800 mesh) 65kg, length is 12mm basalt fibre 15kg, AC foaming agent 0.5kg
Part, 530 type foaming control agent 5kg, calcium zinc stabilizer 3kg, CPE plasticizer 2.5kg, PE wax 0.5kg, stearic acid 0.3kg are stearic
Sour calcium 0.5kg and zinc stearate 0.4kg is in 120 DEG C of high temperature mixing 20min；Then hot mixture material is cooled to cold water pipe
70 DEG C of progress low-temperature mixed 10min, obtain mixed material；
Mixed material is successively squeezed out into (140 DEG C) through an area, 2nd area squeeze out (160 DEG C), 3rd area squeeze out (170 DEG C), 4th area
It squeezes out (175 DEG C), 5th area extrusion (160 DEG C), 6th area extrusion (160 DEG C), 7th area extrusion (165 DEG C) and 8th area and squeezes out (165 DEG C),
Obtain extruded material；
The extruded material is placed in stock mould and is carried out shaping in 13 DEG C, the basalt fibre composite board is obtained.
Embodiment 3
By polyvinyl chloride 50kg, calcium powder (1200 mesh) 65kg, length is 12mm basalt fibre 10kg, AC foaming agent
0.5kg parts, 530 type foaming control agent 5kg, calcium zinc stabilizer 2.5kg, CPE plasticizer 2.6kg, PE wax 0.5kg, stearic acid
0.5kg, calcium stearate 0.5kg and 0.5kg parts of zinc stearate are in 115 DEG C of high temperature mixing 20min；Then high temperature is mixed with cold water pipe
It closes material and is cooled to 60 DEG C of progress low-temperature mixed 10min, obtain mixed material；
Mixed material is successively squeezed out into (150 DEG C) through an area, 2nd area squeeze out (165 DEG C), 3rd area squeeze out (170 DEG C), 4th area
It squeezes out (180 DEG C), 5th area extrusion (160 DEG C), 6th area extrusion (160 DEG C), 7th area extrusion (165 DEG C) and 8th area and squeezes out (165 DEG C),
Obtain extruded material；
The extruded material is placed in stock mould and is carried out shaping in 8 DEG C, the basalt fibre composite board is obtained.
Embodiment 4
By polyvinyl chloride 50kg, calcium powder (1200 mesh) 65kg, length is 15mm basalt fibre 10kg, AC foaming agent
0.5kg, 530 type foaming control agent 5kg, calcium zinc stabilizer 2.5kg, CPE plasticizer 2.6kg, PE wax 0.5kg, stearic acid
0.5kg, calcium stearate 0.5kg and zinc stearate 0.5kg are in 115 DEG C of high temperature mixing 20min；Then high temperature is mixed with cold water pipe
Material is cooled to 50 DEG C of progress low-temperature mixed 10min, obtains mixed material；
Mixed material is successively squeezed out into (150 DEG C) through an area, 2nd area squeeze out (165 DEG C), 3rd area squeeze out (170 DEG C), 4th area
It squeezes out (180 DEG C), 5th area extrusion (160 DEG C), 6th area extrusion (160 DEG C), 7th area extrusion (165 DEG C) and 8th area and squeezes out (165 DEG C),
Obtain extruded material；
The extruded material is placed in stock mould and is carried out shaping in 13 DEG C, the basalt fibre composite board is obtained.
Comparative example 1
Same as Example 1, difference is only that the partial size of calcium powder is 400 mesh.
Comparative example 2
Same as Example 3, difference is only that the length of basalt fibre is 6mm.
Comparative example 3
Same as Example 3, difference is only that the length of basalt fibre is 30mm.
According to 1~3 gained basalt fibre composite board of ISO 14704:2000 testing example 1~4 and comparative example
Bending strength is as shown in table 1.
The bending strength test result of 1~3 gained basalt fibre composite board of Examples 1 to 4 and comparative example
Pass through comparative example 1 and comparative example 1, it can be seen that the partial size of calcium powder becomes larger, and leads to basalt fibre composite plate
The mechanical properties decrease of material, this may be because polyvinyl chloride is under the action of foaming agent and foaming control agent, the bubble of formation
It is smaller, but the partial size of calcium powder is excessive, causes calcium powder not enter in the bubble that polyvinyl chloride is formed well, causes calcium powder
It is unevenly distributed in polyvinyl chloride, leads to the mechanical properties decrease of final composite board.Pass through comparative example 3~4 and comparison
Example 2~3 is as can be seen that the growth of basalt fibre length can correspondingly increase the bending strength of composite board, but work as basalt
The length of fiber increases to 30mm, and the bending strength of composite board is but begun to decline, this may be because calcium powder is to pass through increasing
Addition polymerization vinyl chloride internal combustion improves composite board, just such as calcium powder enhancing timber intensity be a little, and basalt fibre is
Enhance the bending strength of composite board by connecting these points, when the length of basalt fibre is too long, causes a little
Transition to line is elongated, and connecting is bad, so as to cause the decline of composite board mechanical property；And basalt fibre length is too
It is short, point to line transition it is short, enhancing degree is restricted, cause add basalt fibre after composite board bending strength it is increased
It is unobvious.By comparing Examples 1 and 2 as can be seen that the collective effect of foaming control agent and foaming agent can enhance polychlorostyrene second
The partial size of the bubble uniformity of alkene, the calcium powder introduced in addition becomes smaller, so that 2 gained gained basalt fibre composite plate of embodiment
The bending strength of material is higher than 1 gained basalt fibre composite board of embodiment.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of basalt fibre composite board, which is characterized in that be prepared by the raw material for including following parts by weight: polychlorostyrene
50 parts of ethylene, 65 parts of calcium powder, 10~15 parts of basalt fibre, 0.4~0.6 part of AC foaming agent, 4~5 parts of foaming control agent, stablize
2.5~3 parts of agent, 2.5~2.8 parts of CPE plasticizer, 0.3~0.7 part of PE wax, 0.3~0.8 part of stearic acid, calcium stearate 0.3~
0.5 part, 0.3~0.6 part of zinc stearate；The length of the basalt fibre is 9~20mm.
2. resulting basalt fibre composite board according to claim 1, which is characterized in that the stabilizer includes that calcium zinc is stablized
Agent.
3. basalt fibre composite board according to claim 1, which is characterized in that the partial size of the calcium powder be 800~
1200 mesh.
4. basalt fibre composite board according to claim 1, which is characterized in that the foaming control agent includes 530
Type foaming control agent.
5. the preparation method of basalt fibre composite board according to any one of claims 1 to 4, comprising the following steps:
Raw material is successively subjected to high temperature mixing and low-temperature mixed, obtains mixed material；
The mixed material is squeezed out through eight sections, obtains extruded material；
The extruded material is formed, the basalt fibre composite board is obtained.
6. preparation method according to claim 5, which is characterized in that the temperature of the high temperature mixing is 115~120 DEG C,
Time is 15~20min.
7. preparation method according to claim 5 or 6, which is characterized in that high temperature mixing under stirring conditions into
Row, the revolving speed of the stirring are 1200~1500r/min.
8. preparation method according to claim 5, which is characterized in that the temperature of the low-temperature mixed is 50~70 DEG C, when
Between be 5~10min.
9. preparation method according to claim 5, which is characterized in that described eight sections squeeze out the area for including successively carry out and squeeze
Out, 2nd area squeeze out, 3rd area squeeze out, 4th area squeeze out, 5th area squeeze out, 6th area squeeze out, 7th area squeeze out and 8th area squeeze out；One area is squeezed
Temperature out is 140~150 DEG C；The temperature that 2nd area squeezes out is 160~165 DEG C；The temperature that 3rd area squeezes out is 170~
175℃；The temperature that 4th area squeezes out is 175~180 DEG C；5th area extrusion temperature is 160~165 DEG C；6th area is squeezed
Temperature is 160~165 DEG C out, and 7th area extrusion temperature is 160~165 DEG C；8th area extrusion temperature is 160~165 DEG C.
10. preparation method according to claim 5, which is characterized in that the temperature of the sizing is 8~13 DEG C.
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| CN113881165A (en) * | 2021-11-03 | 2022-01-04 | 上海模新新材料科技有限公司 | New formula for improving Vicat softening temperature of PVC building template |
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