CN106750758A - A kind of hybrid structure composite board and preparation method thereof - Google Patents
A kind of hybrid structure composite board and preparation method thereof Download PDFInfo
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- CN106750758A CN106750758A CN201611093191.6A CN201611093191A CN106750758A CN 106750758 A CN106750758 A CN 106750758A CN 201611093191 A CN201611093191 A CN 201611093191A CN 106750758 A CN106750758 A CN 106750758A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- B29C70/345—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 using matched moulds
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
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- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention relates to a kind of hybrid structure composite board and preparation method thereof, there is muscle in column arranged in parallel in the middle of the sheet material, muscle is formed by being extruded after high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag and glass microballoon melt blending in column, muscle is up and down structure sheaf in column, structure sheaf is formed by the mixing calendering of low density polyethylene (LDPE), DOP, glass powder and Chinese medicine slag, and muscle and its up-down structure layer turn into an overall sheet material through molding in column.Hybrid structure composite board is applied to building products such as the building materials articles such as the storage product such as the packing articles such as making pallet, packing case, bed board, goods shelf plate, bicycle shed, roof, building template, floor, guardrail etc..
Description
Technical field
The present invention relates to a kind of composite, more particularly to a kind of hybrid structure composite board and its preparation side
Method.Suitable for making the storage product such as the packing articles such as pallet, packing case, bed board, goods shelf plate, bicycle shed, roof, building template etc.
Building products such as building materials article, floor, guardrail etc..
Background technology
In recent years, with waste or used plastics, wood powder etc. as primary raw material, then it is aided with other a small amount of auxiliary agents, the work such as extruded, molding
A kind of widely used advanced composite material (ACM)-Wood plastic composite that skill is manufactured increasingly is closed by the height of people
Note, it has, and raw material sources are extensive, environment-friendly, renewable, the characteristics of can be recycled.Wood plastic composite has same timber
Similar processing characteristics, can saw, can follow closely, can dig, and water-fast, antiseptic property is excellent, not bacterial growth, be difficult to be damaged by worms, not long
Fungi, can also flexibly be changed by adding the characteristics such as different auxiliary agents, the density of plastic-wood material, may also reach up it is anti-aging,
The particular/special requirement such as antistatic, fire-retardant.Meanwhile, Wood plastic composite has the outward appearance of timber, hardness, the material higher than plastic products
Homogeneous, size compared with timber stabilization, be not likely to produce crackle and the features such as without timber knot, twill；It has adding for thermoplastic
Work, and equipment attrition is small；It is not required to be processed using toxic chemical substance, without formaldehyde；Recyclable recycling after discarded, has
Many advantages, such as beneficial to environmental protection.But some obvious deficiencies, such as low strength are there is also, bearing capacity is poor, and fragility is larger, bent
When easily snap off, so as to have impact on its using effect, shorten its service life, define that it uses scope.So, to passing
System Wood plastic composite is modified, and develops a kind of novel hybrid structure composite with the performance such as higher toughness and higher-strength
Material sheet material is very necessary.
The content of the invention
The purpose of the present invention is directed to above-mentioned weak point and provides a kind of hybrid structure composite board and its preparation side
Method, the sheet material easy-formation is processed, comprehensive mechanical property is excellent, product cost is low, applicable surface is wide.
A kind of hybrid structure composite board takes following scheme to realize：
There is muscle in column arranged in parallel in the middle of a kind of hybrid structure composite board, muscle is by high-density polyethylene in column
Extruded after alkene, PLA, maleic anhydride, Chinese medicine slag and glass microballoon melt blending and formed, muscle is up and down structure sheaf, knot in column
Structure layer is formed by the mixing calendering of low density polyethylene (LDPE), DOP, glass powder and Chinese medicine slag, and muscle and its up-down structure layer are through mould in column
Press to an overall sheet material.
Described Chinese medicine slag, average grain diameter is 40-120 mesh.
Described glass microballoon, average grain diameter is 10-50 microns, average wall thickness 1-1.6 microns.
Described glass powder, average length is 80-110 microns.
A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag and glass microballoon according to mass ratio 20: 30-50:
After 1-2: 15-25: 4-8 is well mixed, using extruder for shaping wire rod, extruder screw I areas, II areas, III areas and head
Temperature is respectively 150-156 DEG C, 160-170 DEG C, 168-178 DEG C and 150-156 DEG C；Cut into column after wire rod cooling and shaping
Muscle；
(2) low density polyethylene (LDPE), glass powder, DOP and Chinese medicine slag are mixed equal according to mass ratio 70: 1-5: 5-15: 25-35
It is even, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will form hybrid structure composite panel
The structure sheaf of material, mixing and rolling temperature are 175-185 DEG C, mixing time 15-25min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded at 180-190 DEG C
10-20min, molding pressure 8-10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
A kind of hybrid structure composite board of the present invention, reasonable in design, simple structure, moulding is unique, manufacturing side
Just, traditional plastic processing can be used for its production and processing without improving, and mechanization degree is higher in production process, institute
Need labour less, low production cost.The hybrid structure composite board prepared using the present invention and common plastic wood sheet phase
Than interior hard outer tough, warping resistance ability is stronger, and breakage phenomenon is not susceptible in use, is more suitable for irregular at some
The occasion of shape is used；Hybrid structure composite board of the present invention is compared with timber board, and cost is lower, has been used recyclable
The compositions such as the plastics and Chinese medicine slag of regeneration, realize that the regenerationization of waste resource is utilized, thus more environmentally-friendly.A kind of hybrid structure is answered
Condensation material sheet material can be widely applied to the numerous areas such as traffic, storage, fitting-up, municipal gardens.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described.
Fig. 1 is a kind of hybrid structure composite board structural representation.
Muscle in 1- columns, 2- high density polyethylene (HDPE)s, 3- PLAs, 4- maleic anhydrides, 5- Chinese medicine slags, 6- glass microballoons, 7-
Structure sheaf, 8- low density polyethylene (LDPE)s, 9- glass powder, 10-DOP.
Specific embodiment
Referring to the drawings 1, there are muscle 1 in column arranged in parallel, muscle 1 in column in the middle of a kind of hybrid structure composite board
Formed by being extruded after high density polyethylene (HDPE) 2, PLA 3, maleic anhydride 4, Chinese medicine slag 5 and the melt blending of glass microballoon 6, in column
Muscle is structure sheaf 7 about 1, and structure sheaf 7 kneads calendering and forms by low density polyethylene (LDPE) 8, glass powder 9, DOP10 and Chinese medicine slag 5, post
Muscle 1 and its up-down structure layer 7 turn into an overall sheet material through molding in shape.
Described Chinese medicine slag 5, average grain diameter is 40-120 mesh.
Described glass microballoon 6, average grain diameter is 10-50 microns, average wall thickness 1-1.6 microns.
Described glass powder 9, average length is 80-110 microns.
Embodiment 1：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (80 mesh) and glass microballoon, (average grain diameter is 30
Micron, 1.3 microns of average wall thickness) according to mass ratio 20: 40: 1.5: 20: 6 it is well mixed after, using extruder for shaping line
Material, extruder screw I areas, II areas, III areas and head temperature are respectively 153 DEG C, 165 DEG C, 173 DEG C and 153 DEG C；Wire rod is cooled down
Muscle in column is cut into after sizing；
(2) by low density polyethylene (LDPE), glass powder (average length is 95 microns), DOP and Chinese medicine slag (80 mesh) according to quality
It is more well mixed than 70: 3: 10: 30, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will be formed
The structure sheaf of hybrid structure composite board, mixing and rolling temperature are 180 DEG C, mixing time 20min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 15min at 185 DEG C,
Molding pressure 9MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：26.32MPa, the modulus of elasticity in static bending：2103MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.12%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 2：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (40 mesh) and glass microballoon, (average grain diameter is 10
Micron, 1 micron of average wall thickness) according to mass ratio 20: 30: 1: 15: 4 it is well mixed after, using extruder for shaping wire rod, squeeze
Go out machine screw rod I areas, II areas, III areas and head temperature and be respectively 150 DEG C, 160 DEG C, 168 DEG C and 150 DEG C；After wire rod cooling and shaping
Cut into muscle in column；
(2) by low density polyethylene (LDPE), glass powder (average length is 80 microns), DOP and Chinese medicine slag (40 mesh) according to quality
It is more well mixed than 70: 1: 5: 25, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will form mixed
The structure sheaf of miscellaneous structural composite material sheet material, mixing and rolling temperature are 175 DEG C, mixing time 15min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 10min at 180 DEG C,
Molding pressure 8MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：27.44MPa, the modulus of elasticity in static bending：1998MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.11%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 3：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (120 mesh) and glass microballoon, (average grain diameter is
50 microns, 1.6 microns of average wall thickness) according to mass ratio 20: 50: 2: 25: 8 it is well mixed after, using extruder for shaping line
Material, extruder screw I areas, II areas, III areas and head temperature are respectively 156 DEG C, 170 DEG C, 178 DEG C and 156 DEG C；Wire rod is cooled down
Muscle in column is cut into after sizing；
(2) by low density polyethylene (LDPE), glass powder (average length is 110 microns), DOP and Chinese medicine slag (120 mesh) according to matter
Amount compares 70: 5: 15: 35 and is well mixed, and then kneads compound using twin-screw extruder and is rolled into sheet material, and the sheet material is by shape
Into the structure sheaf of hybrid structure composite board, mixing and rolling temperature are 185 DEG C, mixing time 25min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 20min at 190 DEG C,
Molding pressure 10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：30.10MPa, the modulus of elasticity in static bending：2332MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.14%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 4：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (40 mesh) and glass microballoon, (average grain diameter is 30
Micron, 1.6 microns of average wall thickness) according to mass ratio 20: 30: 1.5: 25: 4 it is well mixed after, using extruder for shaping line
Material, extruder screw I areas, II areas, III areas and head temperature are respectively 153 DEG C, 170 DEG C, 168 DEG C and 153 DEG C；Wire rod is cooled down
Muscle in column is cut into after sizing；
(2) by low density polyethylene (LDPE), glass powder (average length is 110 microns), DOP and Chinese medicine slag (40 mesh) according to quality
It is more well mixed than 70: 3: 15: 25, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will be formed
The structure sheaf of hybrid structure composite board, mixing and rolling temperature are 180 DEG C, mixing time 25min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 15min at 180 DEG C,
Molding pressure 10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：27.11MPa, the modulus of elasticity in static bending：2013MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.09%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 5：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (80 mesh) and glass microballoon, (average grain diameter is 50
Micron, 1 micron of average wall thickness) according to mass ratio 20: 40: 2: 15: 6 it is well mixed after, using extruder for shaping wire rod, squeeze
Go out machine screw rod I areas, II areas, III areas and head temperature and be respectively 156 DEG C, 160 DEG C, 173 DEG C and 156 DEG C；After wire rod cooling and shaping
Cut into muscle in column；
(2) by low density polyethylene (LDPE), glass powder (average length is 80 microns), DOP and Chinese medicine slag (80 mesh) according to quality
It is more well mixed than 70: 5: 5: 30, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will form mixed
The structure sheaf of miscellaneous structural composite material sheet material, mixing and rolling temperature are 185 DEG C, mixing time 15min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 20min at 185 DEG C,
Molding pressure 8MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：24.98MPa, the modulus of elasticity in static bending：2087MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.12%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 6：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (120 mesh) and glass microballoon, (average grain diameter is
10 microns, 1.3 microns of average wall thickness) according to mass ratio 20: 50: 1: 20: 8 it is well mixed after, using extruder for shaping line
Material, extruder screw I areas, II areas, III areas and head temperature are respectively 150 DEG C, 165 DEG C, 178 DEG C and 150 DEG C；Wire rod is cooled down
Muscle in column is cut into after sizing；
(2) by low density polyethylene (LDPE), glass powder (average length is 95 microns), DOP and Chinese medicine slag (120 mesh) according to quality
It is more well mixed than 70: 1: 10: 35, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will be formed
The structure sheaf of hybrid structure composite board, mixing and rolling temperature are 175 DEG C, mixing time 20min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 10min at 190 DEG C,
Molding pressure 9MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：31.31MPa, the modulus of elasticity in static bending：2312MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.11%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 7：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (40 mesh) and glass microballoon, (average grain diameter is 10
Micron, 1.6 microns of average wall thickness) according to mass ratio 20: 40: 2: 25: 4 it is well mixed after, using extruder for shaping wire rod,
Extruder screw I areas, II areas, III areas and head temperature are respectively 150 DEG C, 165 DEG C, 173 DEG C and 156 DEG C；Wire rod cooling and shaping
After cut into muscle in column；
(2) by low density polyethylene (LDPE), glass powder (average length is 110 microns), DOP and Chinese medicine slag (40 mesh) according to quality
It is more well mixed than 70: 1: 10: 30, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will be formed
The structure sheaf of hybrid structure composite board, mixing and rolling temperature are 185 DEG C, mixing time 25min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 10min at 180 DEG C,
Molding pressure 9MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：27.32MPa, the modulus of elasticity in static bending：1985MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.1%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 8：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (80 mesh) and glass microballoon, (average grain diameter is 30
Micron, 1.6 microns of average wall thickness) according to mass ratio 20: 50: 1: 15: 6 it is well mixed after, using extruder for shaping wire rod,
Extruder screw I areas, II areas, III areas and head temperature are respectively 153 DEG C, 170 DEG C, 178 DEG C and 150 DEG C；Wire rod cooling and shaping
After cut into muscle in column；
(2) by low density polyethylene (LDPE), glass powder (average length is 80 microns), DOP and Chinese medicine slag (80 mesh) according to quality
It is more well mixed than 70: 3: 15: 35, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will be formed
The structure sheaf of hybrid structure composite board, mixing and rolling temperature are 175 DEG C, mixing time 15min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 15min at 185 DEG C,
Molding pressure 10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：28.88MPa, the modulus of elasticity in static bending：2094MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.08%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 9：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (40 mesh) and glass microballoon, (average grain diameter is 30
Micron, 1 micron of average wall thickness) according to mass ratio 20: 40: 2: 15: 8 it is well mixed after, using extruder for shaping wire rod, squeeze
Go out machine screw rod I areas, II areas, III areas and head temperature and be respectively 150 DEG C, 165 DEG C, 168 DEG C and 153 DEG C；After wire rod cooling and shaping
Cut into muscle in column；
(2) by low density polyethylene (LDPE), glass powder (average length is 110 microns), DOP and Chinese medicine slag (80 mesh) according to quality
It is more well mixed than 70: 5: 5: 35, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will form mixed
The structure sheaf of miscellaneous structural composite material sheet material, mixing and rolling temperature are 175 DEG C, mixing time 20min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 15min at 180 DEG C,
Molding pressure 10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：35.62MPa, the modulus of elasticity in static bending：2421MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.16%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Embodiment 10：A kind of preparation method of hybrid structure composite board, its preparation process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag (60 mesh) and glass microballoon, (average grain diameter is 20
Micron, 1.2 microns of average wall thickness) according to mass ratio 20: 35: 1.2: 22: 7 it is well mixed after, using extruder for shaping line
Material, extruder screw I areas, II areas, III areas and head temperature are respectively 152 DEG C, 162 DEG C, 170 DEG C and 152 DEG C；Wire rod is cooled down
Muscle in column is cut into after sizing；
(2) by low density polyethylene (LDPE), glass powder (average length is 90 microns), DOP and Chinese medicine slag (70 mesh) according to quality
It is more well mixed than 70: 2: 6: 32, compound is kneaded using twin-screw extruder then and sheet material is rolled into, the sheet material will form mixed
The structure sheaf of miscellaneous structural composite material sheet material, mixing and rolling temperature are 178 DEG C, mixing time 18min；
(3) sheet material that lay is kneaded and is rolled into the die cavity of molding die, then thereon in laid parallel column
Muscle, then the sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 18min at 188 DEG C,
Molding pressure 8.5MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
After testing, sheet material MOR：33.54MPa, the modulus of elasticity in static bending：2226MPa, falling ball impact test at low temperature crack-free,
High/low temperature size changing rate：0.14%, all indexs are significantly better than that People's Republic of China (PRC) forestry industry standard LY/T1613-
2004《Extruding wood-plastic composite panel》Regulation.
Claims (5)
1. a kind of hybrid structure composite board, it is characterised in that there is muscle in column arranged in parallel centre, in column muscle by
Extruded after high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag and glass microballoon melt blending and formed, muscle is upper and lower in column
It is structure sheaf, structure sheaf is formed by the mixing calendering of low density polyethylene (LDPE), DOP, glass powder and Chinese medicine slag, muscle and its up and down in column
Structure sheaf turns into an overall sheet material through molding.
2. a kind of hybrid structure composite board according to claim 1, it is characterised in that described Chinese medicine slag, averagely
Particle diameter is 40-120 mesh.
3. a kind of hybrid structure composite board according to claim 1, it is characterised in that described glass microballoon, puts down
Equal particle diameter is 10-50 microns, average wall thickness 1-1.6 microns.
4. a kind of hybrid structure composite board according to claim 1,2, it is characterised in that described glass powder, puts down
Equal length is 80-110 microns.
5. a kind of preparation method of hybrid structure composite board according to claim 1, it is characterised in that its preparation
Process is：
(1) by high density polyethylene (HDPE), PLA, maleic anhydride, Chinese medicine slag and glass microballoon according to mass ratio 20: 30-50: 1-2:
After 15-25: 4-8 is well mixed, using extruder for shaping wire rod, extruder screw I areas, II areas, III areas and head temperature
Respectively 150-156 DEG C, 160-170 DEG C, 168-178 DEG C and 150-156 DEG C；Muscle in column is cut into after wire rod cooling and shaping；
It is (2) low density polyethylene (LDPE), glass powder, DOP and Chinese medicine slag is well mixed according to mass ratio 70: 1-5: 5-15: 25-35,
Then compound is kneaded using twin-screw extruder and is rolled into sheet material, the sheet material will be formed hybrid structure composite board it
Structure sheaf, mixing and rolling temperature are 175-185 DEG C, mixing time 15-25min；
(3) the lay sheet material that kneads and be rolled into the die cavity of molding die, then muscle in laid parallel column thereon, then
The sheet material that lay is kneaded and is rolled on muscle in column, after the completion of, Guan Bi mould is molded 10- at 180-190 DEG C
20min, molding pressure 8-10MPa；
(4) demoulding, takes out moulding plate, as a kind of hybrid structure composite board.
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| CN107955248A (en) * | 2017-11-21 | 2018-04-24 | 南京林业大学 | A kind of interior enhancing composite board made using Chinese medicine dreg and preparation method thereof |
| CN108344329A (en) * | 2018-02-01 | 2018-07-31 | 山东山大天维新材料有限公司 | The preparation method of interlayer reinforced composite material bulletproof halmet |
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