CN109054417A - A kind of Wood-plastic profiles and preparation method thereof - Google Patents
A kind of Wood-plastic profiles and preparation method thereof Download PDFInfo
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- CN109054417A CN109054417A CN201810488269.7A CN201810488269A CN109054417A CN 109054417 A CN109054417 A CN 109054417A CN 201810488269 A CN201810488269 A CN 201810488269A CN 109054417 A CN109054417 A CN 109054417A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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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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- 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
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
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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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Abstract
The present invention provides a kind of fibre-reinforced co-extrusion Wood-plastic profiles and preparation method thereof, which includes substrate and coextruded layer, and the coextruded layer is evenly coated on the outer surface of substrate by co-extrusion.The substrate is made of the raw material of following mass parts: 100 parts of common wood plastic composites, 10~60 parts of long fiber reinforcement thermoplastic materials；The coextruded layer is made of the raw material of following mass parts: 100 parts of co-extrusion one polymer, 10~50 parts of adhering resins, 10~50 parts of compatilizers, 5~20 parts of fillers, 0.2~2 part of antioxidant, 0.2~2 part of ultraviolet absorbing agent, 0.5~5 part of color masterbatch.The Wood-plastic profiles carry out enhancing modification using long fibre, and make Slow cooling, thus strength and stiffness with higher again after profile sufficient crystallising.In addition, the Wood-plastic profiles do not use reinforcing fiber directly during the preparation process, but use long fiber reinforcement thermoplastic material as the source of fiber, since fiber is covered by thermoplastic, will not drift in process of production.
Description
Technical field
The invention belongs to wood plastic composite manufacturing fields more particularly to a kind of Wood-plastic profiles and preparation method thereof.
Background technique
Wood plastic composite is a kind of novel-section for being combined with high molecular polymer using plant fiber as main component
Material.The profile of wood plastic composite preparation has both the feature performance benefit of plant fiber and high molecular material, is used as wood substitutes
It is widely used in the fields such as building materials, storage, decoration.But the strength and stiffness of Wood-plastic profiles are lower, when stress, is easily deformed,
Significantly limit its application range.
In order to solve this problem, Some Enterprises enhance Wood-plastic profiles using continuous fiber, such as application No. is
The patent of invention of CN201410298367.6 discloses a kind of technique of continuous fiber enhancing wood plastic product, first will be long fine
Dimension enhancing PP sheet material carries out surface flame treatment, then by wood moulding particle and treated sheet material coextrusion mold.But this work
Product made from skill, long fibre exist only in sheet portion, are not distributed to the rest part of wood plastic product, reinforcing effect is very
It is limited.
For another example, application No. is the patents of invention of CN201410519897.9, disclose a kind of high strength glass fiber wood moulding
Profile after handling glass fibre, is directly added into the mixing of mixing pot, is then granulated mixture, squeezes out, obtain finished product.But
It is that there are many defects for this technique, is mixed firstly, glass fibre is directly added into mixing pot, have segment glass fiber and exist
It is drifted in environment in mixing, granulation process, workers ' health is caused to damage；Secondly, this technique is easy to keep segment glass fine
Dimension exposes product surface, forms floating fibre, not only influences product appearance, it is also possible to cause to hurt to human body during installing and using
Evil.
Summary of the invention
In order to overcome the shortcomings of that existing Wood-plastic profiles strength and stiffness are low, the present invention provides a kind of fibre-reinforced co-extrusion wood
Plastic section bar and preparation method thereof, the Wood-plastic profiles can not only possess higher strength and stiffness, Er Qie in use
During making and using harm will not be generated to human body.
The technical solution adopted by the present invention is that:
A kind of Wood-plastic profiles, including substrate and coextruded layer, the coextruded layer are evenly coated at the outer surface of substrate by co-extrusion
On.
The substrate is made of the raw material of following mass parts: 100 parts of common wood plastic composites, 10~60 parts of long fibres increase
Heat-flash plastic material；The coextruded layer is made of the raw material of following mass parts: 100 parts of co-extrusion one polymer, 10~50 parts of bondings
Resin, 10~50 parts of compatilizers, 5~20 parts of fillers, 0.2~2 part of antioxidant, 0.2~2 part of ultraviolet absorbing agent, 0.5~5 part
Color masterbatch.
The long fiber reinforcement thermoplastic material is glass fibre, carbon fiber or the Black Warrior for being greater than 3mm using fibre length
At least one of rock fiber is come the PP or PE that enhance.
The fiber content of the long fiber reinforcement thermoplastic material is greater than 15% mass parts.
The co-extrusion one polymer is at least one of PP, PE, EVOH.
The adhering resin is EMAA, EVA, EAA, EMA, ethylene-methyl methacrylate be in the ionomer of base extremely
Few one kind.
The compatilizer is maleic anhydride graft PP, maleic anhydride is grafted PE, maleic anhydride is grafted POE, maleic anhydride connects
At least one of branch SEBS.
The filler is talcum powder, in calcium carbonate, wollastonite, silica, aluminium oxide, barium sulfate crystal whisker, glass microballoon
At least one.
The antioxidant is at least one of amine antioxidants, Hinered phenols antioxidant, phosphite ester antioxidant.
The ultraviolet absorbing agent is benzophenone ultraviolet absorbent, salicylate ultraviolet absorbent, benzo
At least one of triazole type ultraviolet absorbing agent.
The preparation methods of above-mentioned Wood-plastic profiles comprising steps of
(1) raw substrate is dried to moisture content in 60~110 DEG C of temperature of blast drier less than 1.5% after mixing,
Obtain substrate pellet；
The formula and preparation method of common wood plastic composite and long fiber reinforcement thermoplastic material in raw substrate are existing
Technology, this is not described in detail here；
(2) coextruded layer raw material is obtained into co-extrusion by the parallel double-screw extruder melt pelletization with exhaust system after mixing
Layer pellet, processing temperature are 120~200 DEG C, and exhaust system pressure is less than -0.05Mpa；
(3) conical double screw extruder with exhaust system is added in substrate pellet；Drying system is added in coextruded layer pellet
Single screw extrusion machine, making it, composite co-extruding obtains profile crude green body in molding die after fusion plastification respectively；
Wherein, conical double screw extruder exhaust system pressure is less than -0.08Mpa, processing temperature is 120~190 DEG C, single screw rod
Extruder drying system temperature is 60~90 DEG C, processing temperature is 140~200 DEG C, and mold temperature is 130~160 DEG C；
(4) profile crude green body is placed in 60~90 DEG C of temperature of insulating box 48 hours, keeps the high molecular material for forming profile slow
Crystallization, is subsequently placed at and cools down at room temperature, obtain finished product.
The beneficial effects of the present invention are:
1, long fibre is added in common wood plastic composite and carries out enhancing modification by the present invention, can prepare high-intensitive, high rigidity
Wood-plastic profiles, widen the application range of Wood-plastic profiles.
2, the present invention but makes profile in constant temperature not using traditional stock mould rapid cooling in profile preparation process
Slow cooling again after sufficient crystallising in case, this not only increases the crystallinity of high molecular material in profile, has profile higher
Strength and stiffness, and also eliminate the stress in profile concentration, reduce the issuable cracking of profile and deformation.
3, the present invention does not use reinforcing fiber directly during the preparation process, but is made using long fiber reinforcement thermoplastic material
It will not drift, effectively prevent in process of production since fiber is covered by thermoplastic for the source of fiber
Injury to worker.
4, the present invention is coated with uniform coextruded layer in substrate, the floating fiber covering outside substrate can be built, make to produce
While product beauty, caused harm to the human body prevented also from during installing and using.
5, contain antioxidant and ultraviolet absorbing agent in coextruded layer raw material of the invention, the aging speed of substrate can be slowed down
Degree, avoids the strength and stiffness of profile rapid decay due to aging.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2.
Specific embodiment
Embodiment 1
The coextruded layer 2 that hollow Wood-plastic profiles shown in Fig. 1 include substrate 1 and are evenly coated on the outer surface of substrate by co-extrusion.
The substrate 1 is made of the raw material of following mass parts: 100 parts of common wood plastic composites, 30 parts of long fiber reinforcement thermoplasticity materials
Expect (alkali-free glass fibre of the length 5mm containing 20% mass parts and the HDPE of 80% mass parts and other auxiliary agents).The coextruded layer 2
Be made of the raw material of following mass parts: 100 parts of PE, 25 parts of EMMA, 30 parts of maleic anhydrides grafting PE, 10 parts of SiO 2 powders,
1.2 parts of antioxidant (being compounded by antioxidant 1010 and irgasfos 168 by 1:1), 1.2 parts of ultraviolet absorbent UV-531s, 1.8
Part color masterbatch.
The preparation methods of the present embodiment Wood-plastic profiles comprising steps of
(1) 100 parts of common wood plastic composites, 30 parts of long fiber reinforcement thermoplastic materials are mixed in vertical and high-speed mixing machine
Uniformly, vertical and high-speed mixing machine revolving speed is 950r/min.Uniformly mixed raw material is then put into air blast at a temperature of 90 °C to do
It dries to moisture content in dry machine less than 1.5%, obtains substrate pellet；
The formula and preparation method of common wood plastic composite and long fiber reinforcement thermoplastic material in raw substrate are existing
Technology, this is not described in detail here；
(2) by 100 parts of PE, 25 parts of EMMA, 30 parts of maleic anhydrides grafting PE, 10 parts of SiO 2 powders, 1.2 parts of antioxidant (by
Antioxidant 1010 and irgasfos 168 are compounded by 1:1), 1.2 parts of ultraviolet absorbent UV-531s, 1.8 parts of color masterbatches be placed in it is vertical
It is uniformly mixed in formula high-speed mixer, vertical and high-speed mixing machine revolving speed is 950r/min.Then uniformly mixed raw material is passed through
Parallel double-screw extruder melt pelletization with exhaust system obtains coextruded layer pellet, the processing temperature of parallel double-screw extruder
Are as follows: 150 DEG C of an area and 2nd area, 175 DEG C of remaining heating zone, exhaust system pressure are -0.06Mpa；
(3) conical double screw extruder with exhaust system is added in substrate pellet；Drying system is added in coextruded layer pellet
Single screw extrusion machine, making it, composite co-extruding obtains profile crude green body in molding die after fusion plastification respectively；
Wherein, conical double screw extruder exhaust system pressure is -0.085Mpa, processing temperature are as follows: 170 DEG C of an area and 2nd area,
3rd area and 140 DEG C of 4th area, 136 DEG C of merging core, single screw extrusion machine drying system temperature is 75 DEG C, processing temperature is 180 DEG C, mould
Having temperature is 145 DEG C；
(4) profile crude green body is placed in 80 DEG C of temperature of insulating box 48 hours, crystallizes the high molecular material for forming profile slowly,
It is subsequently placed at and cools down at room temperature, obtain finished product.
Wood-plastic profiles manufactured in the present embodiment are tested, bending strength 48.6Mpa, elasticity of flexure mould according to EN 15534
Amount is 4.1Gpa.
Embodiment 2
Shown in Fig. 2, coextruded layer 4 that solid Wood-plastic profiles include substrate 3 and are evenly coated on the outer surface of substrate by co-extrusion.
The substrate 3 is made of the raw material of following mass parts: 100 parts of common wood plastic composites, 35 parts of long fiber reinforcement thermoplasticity materials
Expect (alkali-free glass fibre of the length 5mm containing 30% mass parts and the HDPE of 70% mass parts and other auxiliary agents).The coextruded layer 4
Be made of the raw material of following mass parts: 100 parts of PE, 30 parts of EMMA, 30 parts of maleic anhydrides grafting PE, 10 parts of SiO 2 powders,
1.2 parts of antioxidant (being compounded by antioxidant 1010 and irgasfos 168 by 1:1), 1.2 parts of ultraviolet absorbent UV-531s, 1.8
Part color masterbatch.
The preparation methods of the present embodiment Wood-plastic profiles comprising steps of
(1) 100 parts of common wood plastic composites, 35 parts of long fiber reinforcement thermoplastic materials are mixed in vertical and high-speed mixing machine
Uniformly, vertical and high-speed mixing machine revolving speed is 950r/min.Uniformly mixed raw material is then put into drum at a temperature of 90 °C
It dries to moisture content in wind drying machine less than 1.5%, obtains substrate pellet；
The formula and preparation method of common wood plastic composite and long fiber reinforcement thermoplastic material in raw substrate are existing
Technology, this is not described in detail here；
(2) by 100 parts of PE, 30 parts of EMMA, 30 parts of maleic anhydrides grafting PE, 10 parts of SiO 2 powders, 1.2 parts of antioxidant (by
Antioxidant 1010 and irgasfos 168 are compounded by 1:1), 1.2 parts of ultraviolet absorbent UV-531s, 1.8 parts of color masterbatches be placed in it is vertical
It is uniformly mixed in formula high-speed mixer, vertical and high-speed mixing machine revolving speed is 950r/min.Then uniformly mixed raw material is passed through
Parallel double-screw extruder melt pelletization with exhaust system obtains coextruded layer pellet, the processing temperature of parallel double-screw extruder
Are as follows: 150 DEG C of an area and 2nd area, 175 DEG C of remaining heating zone, exhaust system pressure are -0.06Mpa；
(3) conical double screw extruder with exhaust system is added in substrate pellet；Drying system is added in coextruded layer pellet
Single screw extrusion machine, making it, composite co-extruding obtains profile crude green body in molding die after fusion plastification respectively；
Wherein, conical double screw extruder exhaust system pressure is -0.085Mpa, processing temperature are as follows: 180 DEG C of an area and 2nd area,
3rd area and 145 DEG C of 4th area, 140 DEG C of merging core, single screw extrusion machine drying system temperature is 75 DEG C, processing temperature is 180 DEG C, mould
Having temperature is 145 DEG C；
(4) profile crude green body is placed in 80 DEG C of temperature of insulating box 48 hours, crystallizes the high molecular material for forming profile slowly,
It is subsequently placed at and cools down at room temperature, obtain finished product.
Wood-plastic profiles manufactured in the present embodiment are tested, bending strength 50.1Mpa, elasticity of flexure mould according to EN 15534
Amount is 4.8Gpa.
Claims (10)
1. a kind of Wood-plastic profiles, it is characterised in that: including substrate and coextruded layer, the coextruded layer is evenly coated at by co-extrusion
On the outer surface of substrate, the substrate is made of the raw material of following mass parts: 100 parts of common wood plastic composites, 10~60 parts
Long fiber reinforcement thermoplastic material；The coextruded layer is made of the raw material of following mass parts: 100 parts of co-extrusion one polymer, 10~
50 parts of adhering resins, 10~50 parts of compatilizers, 5~20 parts of fillers, 0.2~2 part of antioxidant, 0.2~2 part of ultraviolet absorbing agent,
0.5~5 part of color masterbatch.
2. Wood-plastic profiles according to claim 1, it is characterised in that: the long fiber reinforcement thermoplastic material is using fine
The PP or PE that dimension length is greater than at least one of glass fibre, carbon fiber or basalt fibre of 3mm to enhance.
3. Wood-plastic profiles according to claim 1, it is characterised in that: the fiber of the long fiber reinforcement thermoplastic material contains
Amount is greater than 15% mass parts.
4. Wood-plastic profiles according to claim 1, it is characterised in that: the co-extrusion one polymer is in PP, PE, EVOH
It is at least one.
5. Wood-plastic profiles according to claim 1, it is characterised in that: the adhering resin be EMAA, EVA, EAA, EMA,
Ethylene-methyl methacrylate is at least one of the ionomer of base.
6. Wood-plastic profiles according to claim 1, it is characterised in that: the compatilizer is maleic anhydride graft PP, Malaysia
Acid anhydrides is grafted at least one of PE, maleic anhydride grafting POE, maleic anhydride-g-SBS.
7. Wood-plastic profiles according to claim 1, it is characterised in that: the filler be talcum powder, calcium carbonate, wollastonite,
At least one of silica, aluminium oxide, barium sulfate crystal whisker, glass microballoon.
8. Wood-plastic profiles according to claim 1, it is characterised in that: the antioxidant is amine antioxidants, Hinered phenols
At least one of antioxidant, phosphite ester antioxidant.
9. Wood-plastic profiles according to claim 1, it is characterised in that: the ultraviolet absorbing agent is benzophenone type ultraviolet
At least one of light absorbers, salicylate ultraviolet absorbent, Benzotriazole Ultraviolet Stabilizer.
10. the preparation method of Wood-plastic profiles according to any one of claims 1 to 9, it is characterised in that: comprising steps of
(1) raw substrate is dried to moisture content in 60~110 DEG C of temperature of blast drier less than 1.5% after mixing,
Obtain substrate pellet；
(2) coextruded layer raw material is total to by the parallel double-screw extruder melt pelletization with exhaust system after mixing
Layer pellet is squeezed, processing temperature is 120~200 DEG C, and exhaust system pressure is less than -0.05Mpa；
(3) conical double screw extruder with exhaust system is added in substrate pellet；Drying system is added in coextruded layer pellet
Single screw extrusion machine, making it, composite co-extruding obtains profile crude green body in molding die after fusion plastification respectively；
Wherein, conical double screw extruder exhaust system pressure is less than -0.08Mpa, processing temperature is 120~190 DEG C, single screw rod
Extruder drying system temperature is 60~90 DEG C, processing temperature is 140~200 DEG C, and mold temperature is 130~160 DEG C；
(4) profile crude green body is placed in 60~90 DEG C of temperature of insulating box 48 hours, keeps the high molecular material for forming profile slow
Crystallization, is subsequently placed at and cools down at room temperature, obtain finished product.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172257A (en) * | 2019-03-28 | 2019-08-27 | 贵州森塑宇木塑有限公司 | A kind of corrosion resistant fiber plate |
| CN110372939A (en) * | 2019-06-18 | 2019-10-25 | 赣州能之光新材料有限公司 | A kind of cladding fabric and preparation method thereof that wood plastic composite durability can be improved |
| CN111019213A (en) * | 2019-12-11 | 2020-04-17 | 宁波禾隆新材料股份有限公司 | Antistatic surface layer material for wood-plastic board and preparation method and application thereof |
| CN111057385A (en) * | 2019-12-02 | 2020-04-24 | 广州康森新材料科技有限公司 | Super-wear-resistant wood-plastic co-extrusion composite material and preparation method thereof |
| CN111546724A (en) * | 2020-05-25 | 2020-08-18 | 安徽森泰木塑集团股份有限公司 | Container wood-plastic bottom plate and preparation method thereof |
| CN112708257A (en) * | 2020-12-31 | 2021-04-27 | 宁波能之光新材料科技股份有限公司 | High-elasticity wear-resistant outdoor wood-plastic surface layer material and preparation method thereof |
| CN112980207A (en) * | 2021-03-10 | 2021-06-18 | 浙江亚厦装饰股份有限公司 | Wood-plastic composite section and preparation method thereof |
| WO2022233072A1 (en) * | 2021-05-06 | 2022-11-10 | 安徽森泰木塑集团股份有限公司 | Ionic polymer-reinforced wood-plastic coated profile |
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Cited By (11)
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| CN110172257A (en) * | 2019-03-28 | 2019-08-27 | 贵州森塑宇木塑有限公司 | A kind of corrosion resistant fiber plate |
| CN110372939A (en) * | 2019-06-18 | 2019-10-25 | 赣州能之光新材料有限公司 | A kind of cladding fabric and preparation method thereof that wood plastic composite durability can be improved |
| CN110372939B (en) * | 2019-06-18 | 2021-11-02 | 赣州能之光新材料有限公司 | Coating fabric capable of improving durability of wood-plastic composite material and preparation method thereof |
| CN111057385A (en) * | 2019-12-02 | 2020-04-24 | 广州康森新材料科技有限公司 | Super-wear-resistant wood-plastic co-extrusion composite material and preparation method thereof |
| CN111019213A (en) * | 2019-12-11 | 2020-04-17 | 宁波禾隆新材料股份有限公司 | Antistatic surface layer material for wood-plastic board and preparation method and application thereof |
| CN111546724A (en) * | 2020-05-25 | 2020-08-18 | 安徽森泰木塑集团股份有限公司 | Container wood-plastic bottom plate and preparation method thereof |
| CN111546724B (en) * | 2020-05-25 | 2023-03-03 | 安徽森泰木塑集团股份有限公司 | Container wood-plastic bottom plate and preparation method thereof |
| CN112708257A (en) * | 2020-12-31 | 2021-04-27 | 宁波能之光新材料科技股份有限公司 | High-elasticity wear-resistant outdoor wood-plastic surface layer material and preparation method thereof |
| CN112708257B (en) * | 2020-12-31 | 2022-06-17 | 宁波能之光新材料科技股份有限公司 | High-elasticity wear-resistant outdoor wood-plastic surface layer material and preparation method thereof |
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Application publication date: 20181221 |