CN110845858A - Nano negative ion wood plastic and manufacturing method thereof - Google Patents
Nano negative ion wood plastic and manufacturing method thereof Download PDFInfo
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- CN110845858A CN110845858A CN201911266822.3A CN201911266822A CN110845858A CN 110845858 A CN110845858 A CN 110845858A CN 201911266822 A CN201911266822 A CN 201911266822A CN 110845858 A CN110845858 A CN 110845858A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2427/06—Homopolymers or copolymers of vinyl chloride
Abstract
The invention discloses a nanometer anion wood plastic, which comprises, by weight, 30-65 parts of waste plant fibers, 5-15 parts of nanometer anion powder, 15-35 parts of thermoplastic resin, 0.5-1 part of traditional Chinese medicine powder, 2-3 parts of a flame retardant, 5-10 parts of a surface modifier, 3-5 parts of a stabilizer, 1-3 parts of a foaming agent, 0.5-1.5 parts of a coupling agent and 2-3 parts of a plasticizer, and has the following beneficial effects: the preparation method has simple and feasible flow, convenient operation and control and easy realization of batch production, the nanometer negative ion powder achieves the purposes of purifying air and eliminating indoor peculiar smell and various harmful gases, the traditional Chinese medicine powder improves the sterilization and antibacterial performance of the wood plastic, simultaneously changes the smell of the wood plastic, and the waste plant fiber realizes the utilization of wastes such as crop straws and the like, reduces the energy consumption and the cost of materials for manufacturing the wood plastic, the waste plant fiber coarse material and the waste plant fiber fine material are distributed in the wood plastic in a staggered way, so that the tensile strength of the wood plastic is increased, and the wood plastic has the advantages of good tensile resistance, good antibacterial and bactericidal performance and good purification performance.
Description
The technical field is as follows:
the invention belongs to the technical field of wood plastic, and particularly relates to a nanometer negative ion wood plastic and a manufacturing method thereof.
Background art:
wood-plastic, i.e. wood-plastic composite material, is a new type of composite material which is briskly developed in recent years at home and abroad, and means a plate or a section which is produced by mixing polyethylene, polypropylene, polyvinyl chloride and the like instead of common resin adhesives with more than 35-70% of waste plant fibers such as wood flour, rice husks, straws and the like to form a new wood material, and then carrying out plastic processing technologies such as extrusion, mould pressing, injection molding and the like. The method is mainly used in industries such as building materials, furniture, logistics packaging and the like. The board is made by mixing plastic and wood powder according to a certain proportion and then performing hot extrusion molding, and is called as an extruded wood-plastic composite board.
At present, the wood plastic does not have the performances of antibiosis, sterilization and air purification, the aim of increasing the wood plastic performance is achieved by adding an antibacterial layer, a sterilization layer, a formaldehyde adsorption layer and the like on the surface of the wood plastic, the working procedures, energy consumption and cost of the wood plastic manufacturing are increased, the performance is reduced along with the increase of the use time of the wood plastic, and the practicability is poor, so the nanometer anion wood plastic and the manufacturing method thereof are provided for solving the problems.
The invention content is as follows:
the invention aims to solve the problems, provides a nano negative ion wood plastic and a manufacturing method thereof, and solves the problems that the existing wood plastic does not have the performances of antibiosis, sterilization and air purification, the aim of increasing the wood plastic performance is achieved by adding an antibacterial layer, a sterilization layer, a formaldehyde adsorption layer and the like on the surface of the wood plastic, the working procedures, the energy consumption and the cost of the wood plastic manufacturing are increased, and the performance is reduced along with the increase of the use time of the wood plastic.
In order to solve the above problems, the present invention provides a technical solution:
the nanometer negative ion wood plastic comprises, by weight, 30-65 parts of waste plant fibers, 5-15 parts of nanometer negative ion powder, 15-35 parts of thermoplastic resin, 0.5-1 part of traditional Chinese medicine powder, 2-3 parts of a flame retardant, 5-10 parts of a surface modifier, 3-5 parts of a stabilizer, 1-3 parts of a foaming agent, 0.5-1.5 parts of a coupling agent and 2-3 parts of a plasticizer.
Preferably, the waste plant fiber is one or more of wood powder, rice hull and crop straw, and is mixed into a new wood material.
Preferably, the waste plant fiber comprises waste plant fiber coarse material and waste plant fiber fine material, the length of the waste plant fiber coarse material is 3-5mm, the length of the waste plant fiber fine material is 1-3mm, and the components of the waste plant fiber coarse material and the waste plant fiber fine material in the waste plant fiber are 1-1.5:1 in parts by weight.
Preferably, the mesh number of the nanometer anion powder is larger than 550 meshes.
Preferably, the traditional Chinese medicine powder is one or a mixture of antibacterial traditional Chinese medicine powder, aroma-enhancing traditional Chinese medicine powder and insect-proof traditional Chinese medicine powder.
Preferably, the thermoplastic resin is one or more of polyethylene, polypropylene and polyvinyl chloride.
A nanometer negative ion wood plastic and a manufacturing method thereof comprise the following steps:
step one, raw material treatment: crushing, screening and drying the used waste plant fiber raw material to ensure the drying and particle size of the raw material for later use;
step two, weighing: weighing the raw materials for manufacturing the wood plastic by using a weighing device according to parts by weight for later use;
step three, mixing materials:
s1, primary mixing: stirring and mixing the waste plant fiber coarse material, the waste plant fiber fine material and the coupling agent for wood-plastic manufacturing weighed according to the parts by weight by using a stirrer to form a modified plant fiber mixture for later use;
s2, secondary mixing: adding nano anion powder, thermoplastic resin, traditional Chinese medicine powder, a flame retardant, a surface modifier, a stabilizer, a foaming agent and a plasticizer which are weighed according to the parts by weight into the modified plant fiber mixture, and stirring and mixing to form a wood-plastic base material;
step four, dehumidification and cooling: drying the formed wood-plastic base material, and cooling after drying;
fifthly, extrusion molding: and (3) placing the dehumidified and cooled wood-plastic base material in a screw extruder for extrusion molding.
Preferably, the heating temperature of the primary mixed material in the third step is 110-120 ℃, the stirring speed is 120r/min, and the stirring time is 10-15 minutes.
Preferably, the heating temperature of the second mixed material in the third step is 110-120 ℃, the stirring speed is 125r/min, and the stirring time is 20-25 minutes.
Preferably, the dehumidifying and drying temperature in the fourth step is 120 ℃, and the moisture content of the dehumidified and dried wood-plastic base material is lower than 1-2%.
The invention has the beneficial effects that:
compared with the traditional wood plastic and the manufacturing method thereof, the nano negative ion wood plastic and the manufacturing method thereof have the advantages that the flow of the manufacturing method is simple and easy to implement, the operation and the control are convenient, the batch production is easy to realize, the wood plastic prepared by the method has better tensile strength, purification performance and sterilization performance, the nano negative ion powder can continuously generate negative ions to remove formaldehyde, PM2.5 and other harmful substances, redundant negative ions are volatilized into the air to purify the air, the purposes of purifying the air and eliminating indoor peculiar smell and various harmful gases are achieved, the sterilization and antibacterial performance of the wood plastic is improved by the traditional Chinese medicine powder in the wood plastic component, the wood plastic smell is changed by the traditional Chinese medicine powder, the waste such as crop straws and the like are utilized by waste plant fibers in the wood plastic raw material, the problems of waste treatment and resource reutilization are solved, and the energy consumption and the cost of the wood plastic manufacturing material are reduced, the waste plant fiber uses waste plant fiber coarse material and waste plant fiber fine material which are mixed and distributed in the wood plastic in a mutually staggered way, so that the tensile strength of the manufactured wood plastic is increased, and the wood plastic manufactured by the method has the advantages of good tensile resistance, good antibacterial and bactericidal properties and good purification performance.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1, the following technical solutions are adopted in the present embodiment:
the first embodiment is as follows:
the nanometer negative ion wood plastic comprises, by weight, 62 parts of waste plant fibers, 8 parts of nanometer negative ion powder, 26 parts of thermoplastic resin, 0.6 part of traditional Chinese medicine powder, 2 parts of a flame retardant, 6 parts of a surface modifier, 3 parts of a stabilizer, 1 part of a foaming agent, 0.8 part of a coupling agent and 2 parts of a plasticizer.
Furthermore, the waste plant fiber is one or more of wood powder, rice hull and crop straw, and is mixed into a new wood material.
Further, the waste plant fiber comprises waste plant fiber coarse materials and waste plant fiber fine materials, the length of the waste plant fiber coarse materials is 3-5mm, the length of the waste plant fiber fine materials is 1-3mm, and the components of the waste plant fiber coarse materials and the waste plant fiber fine materials in the waste plant fiber are 1-1.5:1 in parts by weight.
Furthermore, the mesh number of the nanometer negative ion powder is larger than 550 meshes.
Further, the traditional Chinese medicine powder is one or a mixture of antibacterial traditional Chinese medicine powder, aroma-enhancing traditional Chinese medicine powder and insect-proof traditional Chinese medicine powder.
Further, the thermoplastic resin is one or a mixture of polyethylene, polypropylene and polyvinyl chloride.
A nanometer negative ion wood plastic and a manufacturing method thereof comprise the following steps:
step one, raw material treatment: crushing, screening and drying the used waste plant fiber raw material to ensure the drying and particle size of the raw material for later use;
step two, weighing: weighing the raw materials for manufacturing the wood plastic by using a weighing device according to parts by weight for later use;
step three, mixing materials:
s1, primary mixing: stirring and mixing the waste plant fiber coarse material, the waste plant fiber fine material and the coupling agent for wood-plastic manufacturing weighed according to the parts by weight by using a stirrer to form a modified plant fiber mixture for later use;
s2, secondary mixing: adding nano anion powder, thermoplastic resin, traditional Chinese medicine powder, a flame retardant, a surface modifier, a stabilizer, a foaming agent and a plasticizer which are weighed according to the parts by weight into the modified plant fiber mixture, and stirring and mixing to form a wood-plastic base material;
step four, dehumidification and cooling: drying the formed wood-plastic base material, and cooling after drying;
fifthly, extrusion molding: and (3) placing the dehumidified and cooled wood-plastic base material in a screw extruder for extrusion molding.
Further, the heating temperature of the primary mixed material in the third step is 110-.
Further, the heating temperature of the secondary mixing material in the third step is 110-.
Further, the dehumidifying and drying temperature in the fourth step is 120 ℃, and the moisture content of the dehumidified and dried wood-plastic base material is lower than 1-2%.
Example two:
the nanometer negative ion wood plastic comprises, by weight, 55 parts of waste plant fibers, 10 parts of nanometer negative ion powder, 20 parts of thermoplastic resin, 0.8 part of traditional Chinese medicine powder, 3 parts of a flame retardant, 8 parts of a surface modifier, 4 parts of a stabilizer, 2 parts of a foaming agent, 1 part of a coupling agent and 3 parts of a plasticizer.
Furthermore, the waste plant fiber is one or more of wood powder, rice hull and crop straw, and is mixed into a new wood material.
Further, the waste plant fiber comprises waste plant fiber coarse materials and waste plant fiber fine materials, the length of the waste plant fiber coarse materials is 3-5mm, the length of the waste plant fiber fine materials is 1-3mm, and the components of the waste plant fiber coarse materials and the waste plant fiber fine materials in the waste plant fiber are 1-1.5:1 in parts by weight.
Furthermore, the mesh number of the nanometer negative ion powder is larger than 550 meshes.
Further, the traditional Chinese medicine powder is one or a mixture of antibacterial traditional Chinese medicine powder, aroma-enhancing traditional Chinese medicine powder and insect-proof traditional Chinese medicine powder.
Further, the thermoplastic resin is one or a mixture of polyethylene, polypropylene and polyvinyl chloride.
A nanometer negative ion wood plastic and a manufacturing method thereof comprise the following steps:
step one, raw material treatment: crushing, screening and drying the used waste plant fiber raw material to ensure the drying and particle size of the raw material for later use;
step two, weighing: weighing the raw materials for manufacturing the wood plastic by using a weighing device according to parts by weight for later use;
step three, mixing materials:
s1, primary mixing: stirring and mixing the waste plant fiber coarse material, the waste plant fiber fine material and the coupling agent for wood-plastic manufacturing weighed according to the parts by weight by using a stirrer to form a modified plant fiber mixture for later use;
s2, secondary mixing: adding nano anion powder, thermoplastic resin, traditional Chinese medicine powder, a flame retardant, a surface modifier, a stabilizer, a foaming agent and a plasticizer which are weighed according to the parts by weight into the modified plant fiber mixture, and stirring and mixing to form a wood-plastic base material;
step four, dehumidification and cooling: drying the formed wood-plastic base material, and cooling after drying;
fifthly, extrusion molding: and (3) placing the dehumidified and cooled wood-plastic base material in a screw extruder for extrusion molding.
Further, the heating temperature of the primary mixed material in the third step is 110-.
Further, the heating temperature of the secondary mixing material in the third step is 110-.
Further, the dehumidifying and drying temperature in the fourth step is 120 ℃, and the moisture content of the dehumidified and dried wood-plastic base material is lower than 1-2%.
Example three:
the nanometer negative ion wood plastic comprises, by weight, 40 parts of waste plant fibers, 14 parts of nanometer negative ion powder, 16 parts of thermoplastic resin, 0.9 part of traditional Chinese medicine powder, 9 parts of a flame retardant, 9 parts of a surface modifier, 5 parts of a stabilizer, 3 parts of a foaming agent, 1.2 parts of a coupling agent and 3 parts of a plasticizer.
Furthermore, the waste plant fiber is one or more of wood powder, rice hull and crop straw, and is mixed into a new wood material.
Further, the waste plant fiber comprises waste plant fiber coarse materials and waste plant fiber fine materials, the length of the waste plant fiber coarse materials is 3-5mm, the length of the waste plant fiber fine materials is 1-3mm, and the components of the waste plant fiber coarse materials and the waste plant fiber fine materials in the waste plant fiber are 1-1.5:1 in parts by weight.
Furthermore, the mesh number of the nanometer negative ion powder is larger than 550 meshes.
Further, the traditional Chinese medicine powder is one or a mixture of antibacterial traditional Chinese medicine powder, aroma-enhancing traditional Chinese medicine powder and insect-proof traditional Chinese medicine powder.
Further, the thermoplastic resin is one or a mixture of polyethylene, polypropylene and polyvinyl chloride.
A nanometer negative ion wood plastic and a manufacturing method thereof comprise the following steps:
step one, raw material treatment: crushing, screening and drying the used waste plant fiber raw material to ensure the drying and particle size of the raw material for later use;
step two, weighing: weighing the raw materials for manufacturing the wood plastic by using a weighing device according to parts by weight for later use;
step three, mixing materials:
s1, primary mixing: stirring and mixing the waste plant fiber coarse material, the waste plant fiber fine material and the coupling agent for wood-plastic manufacturing weighed according to the parts by weight by using a stirrer to form a modified plant fiber mixture for later use;
s2, secondary mixing: adding nano anion powder, thermoplastic resin, traditional Chinese medicine powder, a flame retardant, a surface modifier, a stabilizer, a foaming agent and a plasticizer which are weighed according to the parts by weight into the modified plant fiber mixture, and stirring and mixing to form a wood-plastic base material;
step four, dehumidification and cooling: drying the formed wood-plastic base material, and cooling after drying;
fifthly, extrusion molding: and (3) placing the dehumidified and cooled wood-plastic base material in a screw extruder for extrusion molding.
Further, the heating temperature of the primary mixed material in the third step is 110-.
Further, the heating temperature of the secondary mixing material in the third step is 110-.
Further, the dehumidifying and drying temperature in the fourth step is 120 ℃, and the moisture content of the dehumidified and dried wood-plastic base material is lower than 1-2%.
Comparative example one:
the wood-plastic floor comprises the following components in parts by weight: 80-100 parts of polyvinyl chloride powder, 30-45 parts of bamboo powder, 15-25 parts of bamboo charcoal fiber, 25-40 parts of polycarbonate, 5-10 parts of titanium dioxide, 15-20 parts of vinyl silicone resin, 5-6 parts of hydrogen-containing silicone resin, 0.05-0.5 part of platinum catalyst, 1-3 parts of calcium stearate and 1-3 parts of antioxidant.
Comparative example two:
the wood-plastic carbon fiber board comprises the following raw materials in parts by weight: 33-58 parts of resin powder, 20-35 parts of wood powder, 15-25 parts of activated carbon powder, 3-15 parts of nano anion powder, 0.5-2 parts of foaming agent, 0.5-1 part of coupling agent and 10-20 parts of activated light calcium carbonate.
The results of the cleaning, sterilizing and tensile strength tests are shown in the following table:
| item | Concentration of negative ions | Formaldehyde removal rate/%) | Sterilizing rate/%) | Tensile Strength (MPa) |
| Example 1 | 815 | 89 | 91 | 133 |
| Example 2 | 850 | 94 | 95 | 138 |
| Example 3 | 889 | 98.7 | 97 | 141 |
| Comparative example 1 | 0 | 23 | 15 | 119 |
| Comparative example 2 | 658 | 62 | 45 | 114 |
In conclusion, the tensile strength, the purification performance and the sterilization performance of the wood plastic manufactured by the invention are better than those of the first comparative example and the second comparative example, wherein the tensile strength, the purification performance and the sterilization performance of the third example are the best.
Specifically, the method comprises the following steps: a nanometer negative ion wood plastic and its manufacturing method, when using, carry on the crushing, screening, drying process to the used waste plant fiber raw materials at first, guarantee drying and particle diameter of raw materials, then use the weighing apparatus to weigh the raw materials for making wood plastic according to the part by weight, use the agitator to stir and mix waste plant fiber coarse fodder, waste plant fiber fine fodder and coupling agent for wood plastic manufacture according to the part by weight, form the modified plant fiber mixture, add nanometer negative ion powder, thermoplastic resin, Chinese medicinal powder, fire retardant, surface modifier, stabilizer, foaming agent and plasticizer for wood plastic manufacture according to the part by weight in the modified plant fiber mixture to stir and mix, form the wood plastic base material, dry the formed wood plastic base material, cool after drying, finally place the wood plastic base material after dehumidifying and cooling in the screw extruder to extrude and shape, compared with the traditional wood plastic and the manufacturing method thereof, the manufacturing method has simple and easy flow, convenient operation and control and easy realization of batch production, the wood plastic prepared by the method has better tensile strength, purification performance and sterilization performance, the nanometer negative ion powder can continuously generate negative ions to remove formaldehyde, PM2.5 and other harmful substances, the redundant negative ions are volatilized into the air to purify the air and achieve the purposes of purifying the air and eliminating indoor peculiar smell and various harmful gases, the traditional Chinese medicine powder in the wood plastic component improves the sterilization and antibacterial performance of the wood plastic, simultaneously, the traditional Chinese medicine powder changes the smell of the wood plastic and the waste plant fiber in the wood plastic raw material to realize the utilization of wastes such as crop straws and the like, thereby not only solving the problems of waste treatment and resource reutilization, but also reducing the energy consumption and the cost of the material for manufacturing the wood plastic, and the waste plant fiber is mixed by the waste plant fiber coarse material and the waste plant fiber fine material, the waste plant fiber coarse material and the waste plant fiber fine material are mixed and are distributed in the wood plastic in a mutually staggered mode, so that the tensile strength of the manufactured wood plastic is increased, and the wood plastic manufactured by the method has the advantages of good tensile resistance, good antibacterial and bactericidal performance and good purification performance.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A nanometer anion wood-plastic is characterized in that: the wood-plastic composite comprises, by weight, 30-65 parts of waste plant fibers, 5-15 parts of nano anion powder, 15-35 parts of thermoplastic resin, 0.5-1 part of traditional Chinese medicine powder, 2-3 parts of a flame retardant, 5-10 parts of a surface modifier, 3-5 parts of a stabilizer, 1-3 parts of a foaming agent, 0.5-1.5 parts of a coupling agent and 2-3 parts of a plasticizer.
2. The nano-anion wood plastic according to claim 1, characterized in that: the waste plant fiber is a new wood material mixed by one or more waste plant fibers of wood powder, rice hull and crop straw.
3. The nano-anion wood plastic according to claim 2, characterized in that: the waste plant fiber comprises waste plant fiber coarse materials and waste plant fiber fine materials, wherein the length of the waste plant fiber coarse materials is 3-5mm, the length of the waste plant fiber fine materials is 1-3mm, and the waste plant fiber coarse materials and the waste plant fiber fine materials in the waste plant fiber are 1-1.5:1 in parts by weight.
4. The nano-anion wood plastic according to claim 1, characterized in that: the mesh number of the nanometer anion powder is larger than 550 meshes.
5. The nano-anion wood plastic according to claim 1, characterized in that: the traditional Chinese medicine powder is one or a mixture of antibacterial traditional Chinese medicine powder, aroma-enhancing traditional Chinese medicine powder and insect-proof traditional Chinese medicine powder.
6. The nano-anion wood plastic according to claim 1, characterized in that: the thermoplastic resin is one or a mixture of polyethylene, polypropylene and polyvinyl chloride.
7. The manufacturing method of nanometer negative ion wood plastic as claimed in claim 1, characterized in that: the method comprises the following steps:
step one, raw material treatment: crushing, screening and drying the used waste plant fiber raw material to ensure the drying and particle size of the raw material for later use;
step two, weighing: weighing the raw materials for manufacturing the wood plastic by using a weighing device according to parts by weight for later use;
step three, mixing materials:
s1, primary mixing: stirring and mixing the waste plant fiber coarse material, the waste plant fiber fine material and the coupling agent for wood-plastic manufacturing weighed according to the parts by weight by using a stirrer to form a modified plant fiber mixture for later use;
s2, secondary mixing: adding nano anion powder, thermoplastic resin, traditional Chinese medicine powder, a flame retardant, a surface modifier, a stabilizer, a foaming agent and a plasticizer which are weighed according to the parts by weight into the modified plant fiber mixture, and stirring and mixing to form a wood-plastic base material;
step four, dehumidification and cooling: drying the formed wood-plastic base material, and cooling after drying;
fifthly, extrusion molding: and (3) placing the dehumidified and cooled wood-plastic base material in a screw extruder for extrusion molding.
8. The manufacturing method of nanometer negative ion wood plastic as claimed in claim 7, characterized in that: the heating temperature of the primary mixed material in the third step is 110-120 ℃, the stirring speed is 120r/min, and the stirring time is 10-15 minutes.
9. The manufacturing method of nanometer negative ion wood plastic as claimed in claim 7, characterized in that: the heating temperature of the secondary mixing material in the third step is 110-120 ℃, the stirring speed is 125r/min, and the stirring time is 20-25 minutes.
10. The manufacturing method of nanometer negative ion wood plastic as claimed in claim 7, characterized in that: and in the fourth step, the dehumidifying and drying temperature is 120 ℃, and the moisture content of the dehumidified and dried wood-plastic base material is lower than 1-2%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911266822.3A CN110845858A (en) | 2019-12-11 | 2019-12-11 | Nano negative ion wood plastic and manufacturing method thereof |
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| CN201911266822.3A CN110845858A (en) | 2019-12-11 | 2019-12-11 | Nano negative ion wood plastic and manufacturing method thereof |
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| CN110845858A true CN110845858A (en) | 2020-02-28 |
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| CN201911266822.3A Pending CN110845858A (en) | 2019-12-11 | 2019-12-11 | Nano negative ion wood plastic and manufacturing method thereof |
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