CN108749234A - A kind of double-layer composite material and preparation method thereof - Google Patents
A kind of double-layer composite material and preparation method thereof Download PDFInfo
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- CN108749234A CN108749234A CN201810399227.6A CN201810399227A CN108749234A CN 108749234 A CN108749234 A CN 108749234A CN 201810399227 A CN201810399227 A CN 201810399227A CN 108749234 A CN108749234 A CN 108749234A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
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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
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
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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
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—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
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
Double-layer composite material provided by the invention, sandwich layer include：10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；10~50 mass parts of coconut branches and leaves wood powder；1~30 mass parts of stabilizer；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；0.3~1.5 mass parts of dibutyl maleate；0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；The protective layer includes：88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；1~5 mass parts of fluorine silicon；1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；1~2.5 mass parts of lubricant.Composite material provided by the invention has high bond strength, high-peeling strength, high-wearing feature.
Description
Technical field
The present invention relates to field of material technology, more particularly, to a kind of double-layer composite material and preparation method thereof.
Background technology
The common problem and striving direction of China's wood plastic composite are that urgently exploitation has independent intellectual at present
The new technology of property right.Traditional anticorrosive wood will consume a large amount of timber resources in terms of environmental protection, need to pass through waterproof, preservative treatment, largely
Preservative is added, is caused damages to earth ecology and living environment.They belong to plant fiber, and structural instability is expanded with heat and contract with cold,
Yielding, warpage, cracking, is easy to damage by worms, and grows fungi, causes to go mouldy；Intensity is relatively low, and environment, climatic adaptation power are poor.
Water-swellable, deform warpage, Yi Chao, easily it is mould, service life is short.
It it is generation therefore, it is possible to substitute the advanced composite material (ACM) of the traditional materials such as wood, stone, calcium, porcelain preferably to update
The main flow direction of table 21 century building and ornament materials development.
Invention content
In view of this, the technical problem to be solved in the present invention is to provide a kind of double-layer composite material, it is provided by the invention
Double-layer composite material has high bond strength, high-peeling strength, high-wearing feature, while having wood grain color.
The present invention provides a kind of double-layer composite material, including sandwich layer and the protective layer for being coated on the core layer surface,
The sandwich layer includes：
10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；10~50 mass parts of coconut branches and leaves wood powder；Stabilizer 1
~30 mass parts；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；0.3~1.5 mass of dibutyl maleate
Part；0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；
The protective layer includes：
88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；Fluorine silicon 1~5
Mass parts；1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；Lubricant 1~2.5
Mass parts.
Preferably, the grain size of the coconut branches and leaves wood powder is 20~100 mesh.
Preferably, in the sandwich layer：Stabilizer is organic tin stabilizer, and the lubricant is EPS, stearic acid, stearic acid
Zinc or polyethylene wax；The coupling agent is silane coupling agent；The antioxidant is amine type antioxidant；The fire retardant hinders for Halogen
Fire agent.
Preferably, in the protective layer：Pigment powder is organic pigment powder or inorganic pigment powder；The coupling agent is that silane is even
Join agent；The fire retardant is halogen-free flame retardants；The lubricant is EPS, stearic acid, zinc stearate or polyethylene wax.
The present invention provides a kind of preparation methods of double-layer composite material, including：
A) by polyvinyl chloride, calcium powder, coconut branches and leaves wood powder, stabilizer, lubricant, soybean oil, dibutyl maleate, coupling
Agent, antioxidant and fire retardant mixing squeeze out, and obtain sandwich layer fabric；
Sarin resin, dibutyl maleate, pigment powder, fluorine silicon, coupling agent, molybdenum disulfide, fire retardant and lubricant are mixed
It closes and squeezes out, obtain protection shell fabric；
B) by sandwich layer fabric and protection shell fabric co-extrusion modling, double-layer composite material is obtained.
Preferably, step A) extrusion temperature of the sandwich layer fabric is 140~170 DEG C；The draw ratio is more than 38:1.
Preferably, step A) the protection shell fabric extrusion temperature is 150~170 DEG C.
Preferably, step B) extrusion temperature of the co-extrusion modling is 170~190 DEG C.
Preferably, step A) the coconut branches and leaves wood powder is the coconut palm that drying and processing is carried out after being crushed to 20~100 mesh
Sub- branches and leaves wood powder.
Preferably, step A) extrusion way is single screw extrusion machine or double screw extruder；The step B) it is described
Extrusion way is to be squeezed out using mold.
Compared with prior art, the present invention provides a kind of double-layer composite material, including sandwich layer and it is coated on the sandwich layer
The protective layer on surface, the sandwich layer include：10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；Coconut branches and leaves wood powder 10
~50 mass parts；1~30 mass parts of stabilizer；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；Maleic acid
0.3~1.5 mass parts of dibutyl ester；0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；
The protective layer includes：88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；
1~5 mass parts of fluorine silicon；1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；Lubrication
1~2.5 mass parts of agent.The present invention ties up contour filling waste plastic as sandwich layer using polyvinyl chloride, coconut branches and leaves, selects sarin tree
The key component of the coextruded protective layers such as fat, dibutyl maleate, fluorine silicon, while coupling agent and dibutyl maleate are all used to ensure
The binding force of protective layer and core material.It when coupling agent and dibutyl maleate are used in conjunction with, can act synergistically so that protect
The bond strength of sheath and sandwich layer is most strong, finally prepares environmental-friendly, high-performance, more through surface coextrusion technology and processing technology
The double-deck wood plastic composite of function.
Description of the drawings
Fig. 1 is the sectional view of Wood-plastic material provided by the invention.
Specific implementation mode
The present invention provides a kind of double-layer composite material and preparation method thereof, those skilled in the art can use for reference in this paper
Hold, is suitably modified technological parameter realization.In particular, it should be pointed out that all similar substitutions and modifications are to those skilled in the art
For be it will be apparent that they shall fall within the protection scope of the present invention.The method of the present invention and application are by preferably real
It applies example to be described, related personnel can obviously not depart from the content of present invention, in spirit and scope to methods herein and answer
With being modified or suitably changing and combine, to realize and apply the technology of the present invention.
The present invention provides a kind of double-layer composite material, including sandwich layer and the protective layer for being coated on the core layer surface,
The sandwich layer includes：
10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；10~50 mass parts of coconut branches and leaves wood powder；Stabilizer 1
~30 mass parts；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；0.3~1.5 mass of dibutyl maleate
Part；0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；
The protective layer includes：
88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；Fluorine silicon 1~5
Mass parts；1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；Lubricant 1~2.5
Mass parts.
Double-layer composite material provided by the invention, including sandwich layer；The sandwich layer includes the polyvinyl chloride of 10~50 mass parts；
Preferably include the polyvinyl chloride of 12~48 mass parts；More preferably include the polyvinyl chloride of 15~45 mass parts.
The present invention for the polyvinyl chloride source without limit, it is well known to those skilled in the art commercially available.
The sandwich layer of composite material of the present invention includes the calcium powder of 1~5 mass powder；Preferably include the calcium of 2~4 mass powder
Powder；More preferably include the calcium powder of 3~4 mass powder.The present invention for the calcium powder source without limit, people in the art
It is commercially available known to member.
The sandwich layer of composite material of the present invention includes the coconut branches and leaves wood powder of 10~50 mass parts；Preferably include 12~48
The coconut branches and leaves wood powder of mass parts；More preferably include the coconut branches and leaves wood powder of 15~45 mass parts.
The present invention is placed in breaking pulverizer coconut branches and leaves crushes first, it is made to process coconut branches and leaves wood powder；The coconut palm
The grain size of sub- branches and leaves wood powder is preferably 20~100 mesh.On this basis, it is ensured that coconut branches and leaves wood powder and plastics before mixing into
Row drying and processing, it is also possible to which microwave heating is dried or spontaneously dried.Coconut branches and leaves wood powder after drying should be stored in dry ground
Side.Can not the secondary moisture absorption, otherwise can to processing be affected.
The present invention is well known to those skilled in the art for the not conscientious restriction of the concrete mode of the drying；It is described
The actual temp of drying is preferably 150 ± 5 degree.
The sandwich layer of composite material of the present invention includes the stabilizer of 1~30 mass parts, preferably includes 2~28 mass parts
Stabilizer more preferably includes the stabilizer of 5~25 mass parts, most preferably includes the stabilizer of 7~23 mass parts.
Stabilizer of the present invention is preferably organic tin stabilizer；Organic tin stabilizer is one kind in heat stabilizer.It is main special
Point is efficient, has high transparency, excellent heat resistance, and resistance to sulfide staining.There are commonly lauric acid esters, maleic acid esters and
Thio-alcohol.The present invention to its source without limit, it is commercially available.
The sandwich layer of composite material of the present invention includes the lubricant of 0.1~0.5 mass parts, preferably includes 0.1~0.4 matter
The lubricant for measuring part, more preferably includes the lubricant of 0.2~0.4 mass parts.
Lubricant of the present invention is preferably EPS, stearic acid, zinc stearate or polyethylene wax；More preferably EPS.
The present invention to the sources of said components without limiting, it is commercially available.
The sandwich layer of composite material of the present invention includes the soybean oil of 0.1~0.5 parts by weight；Preferably include 0.1~0.4 weight
Measure the soybean oil of part；More preferably include the soybean oil of 0.2~0.4 parts by weight.
The sandwich layer of composite material of the present invention includes the dibutyl maleate of 0.3~1.5 mass parts；Preferably include 0.5
The dibutyl maleate of~1.3 mass parts；More preferably include the dibutyl maleate of 0.7~1.1 mass parts；Most preferably 0.8
The dibutyl maleate of~1.0 mass parts.
The sandwich layer of composite material of the present invention includes the coupling agent of 0.1~1 mass parts；Preferably include 0.1~0.9 mass
The coupling agent of part；More preferably include the coupling agent of 0.2~0.8 mass parts.
Coupling agent of the present invention is preferably silane coupling agent；The present invention to its source without limit, it is commercially available.
Silane coupling agent be it is a kind of in the molecule simultaneously containing there are two types of different chemical property groups organo-silicon compound,
Classical product can be indicated with general formula YSiX3.In formula, Y is non-hydrolytic group, including alkenyl (predominantly vinyl), Yi Jimo
Alkyl of the end with functional groups such as Cl, NH2, SH, epoxy, N3, (methyl) acryloxy, isocyanate group, i.e. carbon functional group；
X is hydrolyzable groups, including Cl, OMe, OEt, OC2H4OCH3, OSiMe3 and OAc etc..Due to this special construction, in its point
In son simultaneously have can and the chemically combined reactive group of inanimate matter material (such as glass, silica sand, metal) and with organic material
Expect (synthetic resin etc.) chemically combined reactive group, can be used for being surface-treated.
Its concrete model can be：kn550.
The sandwich layer of composite material of the present invention includes the antioxidant of 1~2 mass parts；Preferably include 1.1~1.9 mass parts
Antioxidant；More preferably include the antioxidant of 1.2~1.8 mass parts.
The antioxidant is amine type antioxidant；The present invention to its source without limit, it is commercially available.Its concrete model can
Think:1010.
The sandwich layer of composite material of the present invention includes the fire retardant of 0.1~1 mass parts；Preferably include 0.1~0.9 mass
The fire retardant of part；More preferably include the fire retardant of 0.2~0.8 mass parts.
Fire retardant of the present invention is preferably halogen-free flame retardants.The present invention to its source without limit, it is commercially available.Its
Concrete model can be:LH-880.
The present invention provides a kind of double-layer composite materials, including are coated on the protective layer of the core layer surface, the protection
Layer includes the sarin resin of 88~92 mass parts；Preferably include the sarin resin of 89~91 mass parts.
Sarin resin is that Du Pont is polymerized using unique production technology, is ethylene-(methyl) acrylic acid zinc salt, sodium
Salt, lithium salts plasma key condensate, Du Pont are a unique ionic polymerization resin producers in the world.The present invention is to its source
It is commercially available without limiting.
The protective layer of composite material provided by the invention includes the dibutyl maleate of 1~5 mass parts；Preferably include 2~5
The dibutyl maleate of mass parts；More preferably include the dibutyl maleate of 2~4 mass parts.
The present invention to its source without limit, it is commercially available.
The protective layer of composite material provided by the invention includes the pigment powder of 1~5 mass parts；Preferably include 2~5 mass parts
Pigment powder；More preferably include the pigment powder of 2~4 mass parts.
Pigment powder of the present invention is organic pigment powder or inorganic pigment powder；Including but not limited to nano zine oxide.This hair
It is bright to its source without limit, it is commercially available.
The protective layer of composite material provided by the invention includes the fluorine silicon of 1~5 mass parts；Preferably include 2~5 mass parts
Fluorine silicon；More preferably include the fluorine silicon of 2~4 mass parts.The present invention to its source without limit, it is commercially available.
The protective layer of composite material provided by the invention includes the coupling agent of 1~2.5 mass parts；Preferably include 1.2~2.3
The coupling agent of mass parts；More preferably include the coupling agent of 1.5~2.1 mass parts.
Coupling agent of the present invention is preferably silane coupling agent；The present invention to its source without limit, it is commercially available.
The protective layer of composite material provided by the invention includes the molybdenum disulfide of 1~5 mass parts；Preferably include 2~5 mass
The molybdenum disulfide of part；More preferably include the molybdenum disulfide of 2~4 mass parts.The present invention to its source without limit, it is commercially available i.e.
It can.
The protective layer of composite material provided by the invention includes the fire retardant of 1~2.5 mass parts；Preferably include 1.2~2.3
The fire retardant of mass parts；More preferably include the fire retardant of 1.5~2.1 mass parts.
Fire retardant of the present invention is preferably halogen-free flame retardants.The present invention to its source without limit, it is commercially available.Its
Concrete model can be：LH-880.
The protective layer of composite material provided by the invention includes the lubricant of 1~2.5 mass parts；Preferably include 1.2~2.3
The lubricant of mass parts；More preferably include the lubricant of 1.5~2.1 mass parts.
Lubricant of the present invention is preferably EPS, stearic acid, zinc stearate or polyethylene wax.More preferably EPS.This hair
The bright source to said components is commercially available without limiting.
The present invention provides a kind of double-layer composite material, including sandwich layer and the protective layer for being coated on the core layer surface, institutes
Stating sandwich layer includes：10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；10~50 mass parts of coconut branches and leaves wood powder；Stablize
1~30 mass parts of agent；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；Dibutyl maleate 0.3~1.5
Mass parts；0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；The protective layer includes：
88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；1~5 mass parts of fluorine silicon；
1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；1~2.5 mass parts of lubricant.
The present invention ties up contour filling waste plastic as sandwich layer using polyvinyl chloride, coconut branches and leaves, selection sarin resin, dibutyl maleate,
The key component of the coextruded protective layers such as fluorine silicon, while coupling agent and dibutyl maleate all are used to ensure the knot of protective layer and core material
With joint efforts.It when coupling agent and dibutyl maleate are used in conjunction with, can act synergistically so that the combination of protective layer and sandwich layer
Intensity is most strong, and it is multiple finally to prepare environmental-friendly, high-performance, the multi-functional double-deck wood moulding through surface coextrusion technology and processing technology
Condensation material.
The present invention provides a kind of preparation methods of double-layer composite material, including：
A) by polyvinyl chloride, calcium powder, coconut branches and leaves wood powder, stabilizer, lubricant, soybean oil, dibutyl maleate, coupling
Agent, antioxidant and fire retardant mixing squeeze out, and obtain sandwich layer fabric；
Sarin resin, dibutyl maleate, pigment powder, fluorine silicon, coupling agent, molybdenum disulfide, fire retardant and lubricant are mixed
It closes and squeezes out, obtain protection shell fabric；
B) by sandwich layer fabric and protection shell fabric co-extrusion modling, double-layer composite material is obtained.
The above-mentioned concrete component of the present invention has been clearly described, and details are not described herein.
The preparation method of double-layer composite material provided by the invention prepares sandwich layer fabric and protection shell fabric respectively first；Tool
Body is：
By polyvinyl chloride, calcium powder, coconut branches and leaves wood powder, stabilizer, lubricant, soybean oil, dibutyl maleate, coupling
Agent, antioxidant and fire retardant mixing squeeze out, and obtain sandwich layer fabric；
The present invention is placed in breaking pulverizer coconut branches and leaves crushes first, it is made to process coconut branches and leaves wood powder；The coconut palm
The grain size of sub- branches and leaves wood powder is preferably 20~100 mesh.On this basis, it is ensured that coconut branches and leaves wood powder and plastics before mixing into
Row drying and processing, it is also possible to which microwave heating is dried or spontaneously dried.Coconut branches and leaves wood powder after drying should be stored in dry ground
Side.Can not the secondary moisture absorption, otherwise can to processing be affected.
The present invention for above-mentioned mixing without limit, it is well known to those skilled in the art.It is preferred that through mixer, double
Screw extruder extruding pelletization, the draw ratio are preferably greater than 38:1, the processing temperature is preferably 140~170 DEG C；The present invention
The whole temperature of the extrusion is specially：One area：140~150 DEG C；Two 150~160 DEG C of areas；Three 160~170 DEG C of areas.
The present invention is by sarin resin, dibutyl maleate, pigment powder, fluorine silicon, coupling agent, molybdenum disulfide, fire retardant and profit
Lubrication prescription mixing squeezes out, and obtains protection shell fabric；
The present invention for above-mentioned mixing without limit, it is well known to those skilled in the art.It is preferred that being squeezed through twin-screw
Go out machine extruding pelletization, the processing temperature is preferably 150~170 DEG C；The whole temperature of extrusion of the present invention is specially：One area：
150~155 DEG C；Two 155~160 DEG C of areas；Three 160~170 DEG C of areas.
After squeezing out respectively, by sandwich layer fabric and protection shell fabric co-extrusion modling, double-layer composite material is obtained.
Specially：Core layer material is expressed into head through conical double-screw, is squeezed with an other single screw extrusion machine or twin-screw
Go out machine extrusion cladding fabric converged through bilayer mold be extruded into different section structural shape,
The extrusion temperature of co-extrusion modling of the present invention is preferably 170~190 DEG C.The whole temperature of extrusion of the present invention
Specially：One area：170~175 DEG C；Two 175~180 DEG C of areas；Three 180~190 DEG C of areas.
Fig. 1 is the sectional view of Wood-plastic material provided by the invention, wherein 1 is protective layer, and 2 be sandwich layer.
The present invention using waste wood fiber height fill waste plastic as sandwich layer, select with good adhesion, anti-flammability and
The modified PE of wearability is surface functional layer, and environmental-friendly, high-performance, more is prepared through surface coextrusion technology and processing technology
The double-deck wood plastic composite of function.Experimental result：It is more than 1.8mpa that EN319-1993 methods, which test peel strength, and no stripping is de-
It falls, it is above without stripping to test 20 cycles by ASTMD7032 methods；Sarin resin, molybdenum disulfide, not Gui is for improving protective layer
Hardness, wearability.Therefore, coupling agent, sarin resin, dibutyl maleate lubricant EPS is used in mixed way makes protective layer material
It is fine and close not hydrophilic, there is higher durability against pollution than common Wood-plastic profiles.
In order to further illustrate the present invention, with reference to embodiments to a kind of double-layer composite material provided by the invention and its
Preparation method is described in detail.
Embodiment 1
Core layer raw material：15 mass parts of polyvinyl chloride；4 mass powder of calcium powder；20 mass parts of coconut branches and leaves wood powder；25 matter of stabilizer
Measure part；0.2 mass parts of lubricant；0.3 parts by weight of soybean oil；0.6 mass parts of dibutyl maleate；0.2 mass parts of coupling agent；It is anti-
1.5 mass parts of oxygen agent；0.2 mass parts of fire retardant；
Protective layer raw material：
89 mass parts of sarin resin；2 mass parts of dibutyl maleate；2 mass parts of pigment powder；4 mass parts of fluorine silicon；Coupling agent
1.3 mass parts；2 mass parts of molybdenum disulfide；1.5 mass parts of fire retardant；1.5 mass parts of lubricant.
The preparation method of cladding fabric as protective layer is：Silane coupling agent, sarin resin, inorganic pigment powder, Malaysia
Dibutyl phthalate, lubricant EPS, molybdenum disulfide, fluorine silicon, amine fire retardant after mixing, through double screw extruder extruding pelletization,
Draw ratio is more than 38:1, processing temperature is 170 ± 5 degree；
The preparation method of core layer material as core material is：Polyvinyl chloride (pvc), natural plant fibre coconut branches and leaves wood powder,
Calcium powder, amine type antioxidant, organic tin stabilizer, EPS lubricants, soybean oil, inorganic toner, halogen-free flame retardants, silane coupling agent
It after mixing, is granulated and is produced using equipment such as mixer, parallel dual-screw extruding machines, processing temperature is 170 ± 5 degree.
Core layer material is expressed into head through conical double-screw, is squeezed out with an other single screw extrusion machine or double screw extruder
Cladding fabric converged and be extruded into different section structural composite material, 180 ± 5 degree of extrusion temperature through double-deck mold.
Performance measurement is carried out to the composite material being prepared, the results are shown in Table 1.
Embodiment 2
Core layer raw material：30 mass parts of polyvinyl chloride；3 mass powder of calcium powder；30 mass parts of coconut branches and leaves wood powder；15 matter of stabilizer
Measure part；0.3 mass parts of lubricant；0.4 parts by weight of soybean oil；1.0 mass parts of dibutyl maleate；0.5 mass parts of coupling agent；It is anti-
1.5 mass parts of oxygen agent；0.5 mass parts of fire retardant；
Protective layer raw material：
90 mass parts of sarin resin；3 mass parts of dibutyl maleate；3 mass parts of pigment powder；3 mass parts of fluorine silicon；Coupling agent
1.5 mass parts；3 mass parts of molybdenum disulfide；2.0 mass parts of fire retardant；2.0 mass parts of lubricant.
The preparation method of cladding fabric as protective layer is：Silane coupling agent, sarin resin, inorganic pigment powder, Malaysia
Dibutyl phthalate, lubricant EPS, molybdenum disulfide, fluorine silicon, amine fire retardant after mixing, through double screw extruder extruding pelletization,
Draw ratio is more than 38:1, processing temperature is 160 ± 5 degree, as 155 DEG C~165 DEG C.
The preparation method of core layer material as core material is：Polyvinyl chloride (pvc), natural plant fibre coconut branches and leaves wood powder,
Calcium powder, amine type antioxidant, organic tin stabilizer, EPS lubricants, soybean oil, inorganic toner, halogen-free flame retardants, silane coupling agent
It after mixing, is granulated and is produced using equipment such as mixer, parallel dual-screw extruding machines, processing temperature is 170 ± 5 degree.
Core layer material is expressed into head through conical double-screw, is squeezed out with an other single screw extrusion machine or double screw extruder
Cladding fabric converged and be extruded into different section structural composite material, 190 ± 5 degree of extrusion temperature through double-deck mold.
Performance measurement is carried out to the composite material being prepared, the results are shown in Table 1.
Embodiment 3
Core layer raw material：45 mass parts of polyvinyl chloride；2 mass powder of calcium powder；40 mass parts of coconut branches and leaves wood powder；10 matter of stabilizer
Measure part；0.4 mass parts of lubricant；0.2 parts by weight of soybean oil；1.3 mass parts of dibutyl maleate；0.8 mass parts of coupling agent；It is anti-
1.8 mass parts of oxygen agent；0.8 mass parts of fire retardant；
Protective layer raw material：
91 mass parts of sarin resin；4 mass parts of dibutyl maleate；4 mass parts of pigment powder；2 mass parts of fluorine silicon；Coupling agent
2.3 mass parts；4 mass parts of molybdenum disulfide；2.3 mass parts of fire retardant；2.3 mass parts of lubricant.
The preparation method of cladding fabric as protective layer is：Silane coupling agent, sarin resin, inorganic pigment powder, Malaysia
Dibutyl phthalate, lubricant EPS, molybdenum disulfide, fluorine silicon, amine fire retardant after mixing, through double screw extruder extruding pelletization,
Draw ratio is more than 38:1, processing temperature is 150 ± 5 degree；
The preparation method of core layer material as core material is：Polyvinyl chloride (pvc), natural plant fibre coconut branches and leaves wood powder,
Calcium powder, amine type antioxidant, organic tin stabilizer, EPS lubricants, soybean oil, inorganic toner, halogen-free flame retardants, silane coupling agent
It after mixing, is granulated and is produced using equipment such as mixer, parallel dual-screw extruding machines, processing temperature is 170 ± 5 degree.
Core layer material is expressed into head through conical double-screw, is squeezed out with an other single screw extrusion machine or double screw extruder
Cladding fabric converged and be extruded into different section structural composite material, 190 ± 5 degree of extrusion temperature through double-deck mold.
Performance measurement is carried out to the composite material being prepared, the results are shown in Table 1.
Table 1
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 double-layer composite material, including sandwich layer and the protective layer for being coated on the core layer surface,
The sandwich layer includes：
10~50 mass parts of polyvinyl chloride；1~5 mass powder of calcium powder；10~50 mass parts of coconut branches and leaves wood powder；Stabilizer 1~30
Mass parts；0.1~0.5 mass parts of lubricant；0.1~0.5 parts by weight of soybean oil；0.3~1.5 mass parts of dibutyl maleate；
0.1~1 mass parts of coupling agent；1~2 mass parts of antioxidant；0.1~1 mass parts of fire retardant；
The protective layer includes：
88~92 mass parts of sarin resin；1~5 mass parts of dibutyl maleate；1~5 mass parts of pigment powder；1~5 mass of fluorine silicon
Part；1~2.5 mass parts of coupling agent；1~5 mass parts of molybdenum disulfide；1~2.5 mass parts of fire retardant；1~2.5 mass of lubricant
Part.
2. composite material according to claim 1, which is characterized in that the grain size of the coconut branches and leaves wood powder is 20~100
Mesh.
3. composite material according to claim 1, which is characterized in that in the sandwich layer：Stabilizer is organic tin stabilizer,
The lubricant is EPS, stearic acid, zinc stearate or polyethylene wax；The coupling agent is silane coupling agent；The antioxidant is
Amine type antioxidant；The fire retardant is halogen-free flame retardants.
4. composite material according to claim 1, which is characterized in that in the protective layer：Pigment powder is organic pigment powder
Or inorganic pigment powder；The coupling agent is silane coupling agent；The fire retardant is halogen-free flame retardants；The lubricant is EPS, firmly
Resin acid, zinc stearate or polyethylene wax.
5. a kind of preparation method of double-layer composite material, including：
A) by polyvinyl chloride, calcium powder, coconut branches and leaves wood powder, stabilizer, lubricant, soybean oil, dibutyl maleate, coupling agent,
Antioxidant and fire retardant mixing squeeze out, and obtain sandwich layer fabric；
Sarin resin, dibutyl maleate, pigment powder, fluorine silicon, coupling agent, molybdenum disulfide, fire retardant and mix lubricant are squeezed
Go out, obtains protection shell fabric；
B) by sandwich layer fabric and protection shell fabric co-extrusion modling, double-layer composite material is obtained.
6. preparation method according to claim 5, which is characterized in that step A) extrusion temperature of the sandwich layer fabric is
140~170 DEG C；The draw ratio is more than 38:1.
7. preparation method according to claim 5, which is characterized in that step A) the protection shell fabric extrusion temperature is
150~170 DEG C.
8. preparation method according to claim 5, which is characterized in that step B) extrusion temperature of the co-extrusion modling is
170~190 DEG C.
9. preparation method according to claim 5, which is characterized in that step A) the coconut branches and leaves wood powder is by crushing
The coconut branches and leaves wood powder of drying and processing is carried out after to 20~100 mesh.
10. preparation method according to claim 5, which is characterized in that step A) extrusion way is Single screw extrusion
Machine or double screw extruder；The step B) extrusion way is to be squeezed out using mold.
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| CN113059718A (en) * | 2021-03-18 | 2021-07-02 | 南通瑞智新材料科技有限公司 | Preparation process of self-coated isolated plastic particles |
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