CN107163449A - High-intensity wood moulding material and preparation method thereof - Google Patents

High-intensity wood moulding material and preparation method thereof Download PDF

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Publication number
CN107163449A
CN107163449A CN201710577864.3A CN201710577864A CN107163449A CN 107163449 A CN107163449 A CN 107163449A CN 201710577864 A CN201710577864 A CN 201710577864A CN 107163449 A CN107163449 A CN 107163449A
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parts
weight
amount
mixture
wood
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CN201710577864.3A
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Chinese (zh)
Inventor
卢国孝
张精忠
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Wuhu Kai Kai Mstar Technology Ltd
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Wuhu Kai Kai Mstar Technology Ltd
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Priority to CN201710577864.3A priority Critical patent/CN107163449A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions 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
    • C08L27/02Compositions 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
    • C08L27/04Compositions 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
    • C08L27/06Homopolymers or copolymers of vinyl chloride
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00Compositions of lignin-containing materials
    • C08L97/02Lignocellulosic material, e.g. wood, straw or bagasse
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of high-intensity wood moulding material and preparation method thereof, preparation method includes:Wood powder, calcium carbonate, nano silicon and silane coupler are mixed, mixture M 1 is made;Polyvinyl chloride resin, PP resins, stearic acid, epoxidized soybean oil and mixture M 1 are mixed, mixture M 2 is made;By mixture M 2 through die head extrusion molding, high-intensity wood moulding material is made;Wherein, relative to the polyvinyl chloride resin of 100 parts by weight, the consumption of the PP resins is 30 70 parts by weight, the stearic consumption is 0.1 3 parts by weight, the consumption of the epoxidized soybean oil is 5 10 parts by weight, and the consumption of the wood powder is 60 100 parts by weight, and the consumption of the calcium carbonate is 20 30 parts by weight, the consumption of the nano silicon is 3 10 parts by weight, and the consumption of the silane coupler is 15 parts by weight.Realize with high intensity, can effectively expand its effect for using scope.

Description

High-strength wood-plastic material and preparation method thereof
Technical Field
The invention relates to the field of production and preparation of wood-plastic materials, in particular to a high-strength wood-plastic material and a preparation method thereof.
Background
The wood plastic material has better service performance and lower use cost, so that the wood plastic material is more and more widely applied to daily life and production. With the increase of the application range, the requirements on the application performance are higher and higher, for example, the conventional strength of the common wood plastic material is more and more difficult to meet the requirements used in the prior art in some aspects.
Therefore, the invention provides a high-strength wood-plastic material which has high strength and can effectively expand the application range thereof and a preparation method thereof, and aims to solve the problems in urgent need.
Disclosure of Invention
In view of the prior art, the invention aims to overcome the problem that the conventional strength of a common wood-plastic material in the prior art is more and more difficult to meet the requirements of the prior art in some aspects, so as to provide a high-strength wood-plastic material which has high strength and can effectively expand the application range thereof, and a preparation method thereof.
In order to achieve the above object, the present invention provides a method for preparing a high-strength wood plastic material, wherein the method comprises:
1) mixing wood powder, calcium carbonate, nano silicon dioxide and a silane coupling agent to prepare a mixture M1;
2) mixing PVC resin, PP resin, stearic acid, epoxidized soybean oil and the mixture M1 to obtain a mixture M2;
3) extruding and molding the mixture M2 through a die head to obtain a high-strength wood-plastic material; wherein,
the PVC resin comprises, by weight, 100 parts of PVC resin, 30-70 parts of PP resin, 0.1-3 parts of stearic acid, 5-10 parts of epoxidized soybean oil, 60-100 parts of wood flour, 20-30 parts of calcium carbonate, 3-10 parts of nano-silica and 1-5 parts of silane coupling agent.
The invention also provides the high-strength wood-plastic material prepared by the preparation method.
According to the technical scheme, wood powder, calcium carbonate, nano-silica and a silane coupling agent are mixed and modified to enable the wood powder material to be modified to a certain degree, then the mixture M1 is mixed with PVC resin, PP resin, stearic acid and epoxidized soybean oil to obtain a mixture M2, and then the mixture M2 is extruded and molded, so that the wood-plastic material prepared from the wood-plastic material has higher strength, and the use performance and the use range of the wood-plastic material are improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The invention provides a preparation method of a high-strength wood-plastic material, wherein the preparation method comprises the following steps:
1) mixing wood powder, calcium carbonate, nano silicon dioxide and a silane coupling agent to prepare a mixture M1;
2) mixing PVC resin, PP resin, stearic acid, epoxidized soybean oil and the mixture M1 to obtain a mixture M2;
3) extruding and molding the mixture M2 through a die head to obtain a high-strength wood-plastic material; wherein,
the PVC resin comprises, by weight, 100 parts of PVC resin, 30-70 parts of PP resin, 0.1-3 parts of stearic acid, 5-10 parts of epoxidized soybean oil, 60-100 parts of wood flour, 20-30 parts of calcium carbonate, 3-10 parts of nano-silica and 1-5 parts of silane coupling agent.
According to the design, wood powder, calcium carbonate, nano-silica and a silane coupling agent are mixed and modified firstly, so that the wood powder material is modified to a certain extent, then the mixture M1 is mixed with PVC resin, PP resin, stearic acid and epoxidized soybean oil to prepare a mixture M2, and then the mixture M2 is extruded and molded, so that the wood-plastic material prepared from the material has higher strength, and the use performance and the use range of the wood-plastic material are improved.
In a preferred embodiment of the present invention, in order to further improve the strength property of the obtained wood plastic material, the amount of the PP resin is 40 to 60 parts by weight, the amount of the stearic acid is 1 to 2 parts by weight, the amount of the epoxidized soybean oil is 6 to 8 parts by weight, the amount of the wood flour is 70 to 90 parts by weight, the amount of the calcium carbonate is 22 to 28 parts by weight, the amount of the nano silica is 5 to 8 parts by weight, and the amount of the silane coupling agent is 2 to 4 parts by weight, relative to 100 parts by weight of the PVC resin.
In a further preferred embodiment, step 2) may further comprise adding a processing aid for mixing.
The processing aids herein may be selected in a manner conventional in the art, for example, in a more preferred embodiment of the present invention, the processing aids may be further selected from one or more of stabilizers, blowing agents and foam regulators.
In a more preferred embodiment, the silane coupling agent may be selected from KH550 silane coupling agents and/or KH570 silane coupling agents.
In order to improve the modification effect in step 1), in a preferred embodiment of the present invention, the mixing in step 1) is stirring and mixing at a temperature of 60-80 ℃, and the stirring rate is 300-500r/min, and the mixing time is 3-5 h.
In a further preferred embodiment, the mixing in step 2) is carried out at a temperature of 140 ℃ and 180 ℃.
In a more preferred embodiment of the present invention, the temperature of the die extrusion port in step 3) is 140-160 ℃.
The invention also provides the high-strength wood-plastic material prepared by the preparation method.
The present invention will be described in detail below by way of examples.
Example 1
1) Stirring and mixing 70 parts by weight of wood powder, 22 parts by weight of calcium carbonate, 5 parts by weight of nano-silica and 2 parts by weight of KH550 silane coupling agent for 3 hours at the temperature of 60 ℃ at the stirring speed of 300r/min to obtain a mixture M1;
2) mixing 100 parts by weight of PVC resin, 40 parts by weight of PP resin, 1 part by weight of stearic acid, 6 parts by weight of epoxidized soybean oil and a mixture M1 at a temperature of 140 ℃ to prepare a mixture M2;
3) and extruding and molding the mixture M2 through a die head with an extrusion opening at the temperature of 140 ℃ to obtain the high-strength wood-plastic material A1.
Example 2
1) Stirring and mixing 90 parts by weight of wood powder, 28 parts by weight of calcium carbonate, 8 parts by weight of nano-silica and 4 parts by weight of KH550 silane coupling agent for 5 hours at a temperature of 80 ℃ at a stirring speed of 500r/min to obtain a mixture M1;
2) mixing 100 parts by weight of PVC resin, 60 parts by weight of PP resin, 2 parts by weight of stearic acid, 8 parts by weight of epoxidized soybean oil and a mixture M1 at a temperature of 180 ℃ to prepare a mixture M2;
3) and extruding and molding the mixture M2 through a die head with an extrusion opening temperature of 160 ℃ to obtain the high-strength wood-plastic material A2.
Example 3
1) Stirring and mixing 80 parts by weight of wood powder, 25 parts by weight of calcium carbonate, 6 parts by weight of nano-silica and 3 parts by weight of KH550 silane coupling agent for 4 hours at the temperature of 70 ℃ at the stirring speed of 400r/min to obtain a mixture M1;
2) mixing 100 parts by weight of PVC resin, 50 parts by weight of PP resin, 2 parts by weight of stearic acid, 7 parts by weight of epoxidized soybean oil and a mixture M1 at a temperature of 160 ℃ to prepare a mixture M2;
3) and extruding and molding the mixture M2 through a die head with an extrusion opening at the temperature of 150 ℃ to obtain the high-strength wood-plastic material A3.
Example 4
The preparation was carried out according to the preparation method of example 1, except that the PP resin was used in an amount of 30 parts by weight, the stearic acid was used in an amount of 0.1 part by weight, the epoxidized soybean oil was used in an amount of 5 parts by weight, the wood flour was used in an amount of 60 parts by weight, the calcium carbonate was used in an amount of 20 parts by weight, the nano-silica was used in an amount of 3 parts by weight, and the KH550 silane coupling agent was used in an amount of 1 part by weight, to obtain a high-strength wood plastic material a 4.
Example 5
The preparation was carried out according to the preparation method of example 2, except that the PP resin was used in an amount of 70 parts by weight, the stearic acid was used in an amount of 3 parts by weight, the epoxidized soybean oil was used in an amount of 10 parts by weight, the wood flour was used in an amount of 100 parts by weight, the calcium carbonate was used in an amount of 30 parts by weight, the nano-silica was used in an amount of 10 parts by weight, and the KH550 silane coupling agent was used in an amount of 5 parts by weight, to obtain a high-strength wood plastic material a 5.
Comparative example 1
The preparation was carried out according to the preparation method of example 3, except that the PP resin was used in an amount of 10 parts by weight, the epoxidized soybean oil was used in an amount of 2 parts by weight, the wood flour was used in an amount of 30 parts by weight, the calcium carbonate was used in an amount of 10 parts by weight, the nano-silica was used in an amount of 1 part by weight, and the KH550 silane coupling agent was used in an amount of 0.5 part by weight, to obtain a wood-plastic material D1.
Comparative example 2
The preparation was carried out according to the preparation method of example 3, except that the PP resin was used in an amount of 100 parts by weight, the stearic acid was used in an amount of 5 parts by weight, the epoxidized soybean oil was used in an amount of 15 parts by weight, the wood flour was used in an amount of 150 parts by weight, the calcium carbonate was used in an amount of 50 parts by weight, the nano-silica was used in an amount of 20 parts by weight, and the KH550 silane coupling agent was used in an amount of 10 parts by weight, to obtain a wood plastic material D2.
Comparative example 3
The preparation was carried out according to the preparation method of example 3, except that no nano-silica was added, and a wood plastic material D3 was prepared.
Comparative example 4
The preparation was carried out according to the preparation method of example 3, except that no silane coupling agent was added, to obtain a wood plastic material D4.
Test example
The bending strength and tensile stress of the above-prepared A1-A5 and D1-D4 were measured in accordance with GB/T1449 and GB/T1447, respectively, and the results are shown in Table 1.
TABLE 1
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (9)

1. A preparation method of a high-strength wood-plastic material is characterized by comprising the following steps:
1) mixing wood powder, calcium carbonate, nano silicon dioxide and a silane coupling agent to prepare a mixture M1;
2) mixing PVC resin, PP resin, stearic acid, epoxidized soybean oil and the mixture M1 to obtain a mixture M2;
3) extruding and molding the mixture M2 through a die head to obtain a high-strength wood-plastic material; wherein,
the PVC resin comprises, by weight, 100 parts of PVC resin, 30-70 parts of PP resin, 0.1-3 parts of stearic acid, 5-10 parts of epoxidized soybean oil, 60-100 parts of wood flour, 20-30 parts of calcium carbonate, 3-10 parts of nano-silica and 1-5 parts of silane coupling agent.
2. The preparation method of claim 1, wherein the PP resin is used in an amount of 40 to 60 parts by weight, the stearic acid is used in an amount of 1 to 2 parts by weight, the epoxidized soybean oil is used in an amount of 6 to 8 parts by weight, the wood flour is used in an amount of 70 to 90 parts by weight, the calcium carbonate is used in an amount of 22 to 28 parts by weight, the nano silica is used in an amount of 5 to 8 parts by weight, and the silane coupling agent is used in an amount of 2 to 4 parts by weight, relative to 100 parts by weight of the PVC resin.
3. The method according to claim 1 or 2, wherein the step 2) further comprises adding a processing aid for mixing.
4. The production method according to claim 3, wherein the processing aid is selected from one or more of a stabilizer, a foaming agent and a foaming regulator.
5. The production method according to claim 1 or 2, wherein the silane coupling agent is selected from a KH550 silane coupling agent and/or a KH570 silane coupling agent.
6. The preparation method as claimed in claim 1 or 2, wherein the mixing in step 1) is stirring mixing at a temperature of 60-80 ℃, and the stirring rate is 300-500r/min, and the mixing time is 3-5 h.
7. The method according to claim 1 or 2, wherein the mixing in step 2) is carried out at a temperature of 140-180 ℃.
8. The production method as claimed in claim 1 or 2, wherein the temperature of the die extrusion port in the step 3) is 140-160 ℃.
9. A high-strength wood plastic material manufactured according to the manufacturing method of any one of claims 1 to 8.
CN201710577864.3A 2017-07-15 2017-07-15 High-intensity wood moulding material and preparation method thereof Pending CN107163449A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108327371A (en) * 2018-03-16 2018-07-27 佛山市利丰日用品有限公司 A kind of composite PVC table top and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497727A (en) * 2009-03-04 2009-08-05 南亚塑胶工业股份有限公司 PVC resin composition and product thereof
CN103113677A (en) * 2013-03-18 2013-05-22 安徽国风木塑科技有限公司 Halogen-free flame-retardant anti-mildew composite and preparation method thereof
CN104403236A (en) * 2014-12-22 2015-03-11 孙宝林 PVC-PP (polyvinyl chloride-polypropylene) foamed composite floor material
CN105924999A (en) * 2016-07-07 2016-09-07 安徽国风木塑科技有限公司 Toughening type modified wood-plastic composite material and preparation method thereof
CN106479210A (en) * 2016-11-08 2017-03-08 佛山市炬业科技有限公司 For making plastic-wood material of shock resistance door-plate and preparation method thereof
CN106496866A (en) * 2016-11-08 2017-03-15 佛山市炬业科技有限公司 A kind of plastic-wood material for making fire-retardant door pocket and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497727A (en) * 2009-03-04 2009-08-05 南亚塑胶工业股份有限公司 PVC resin composition and product thereof
CN103113677A (en) * 2013-03-18 2013-05-22 安徽国风木塑科技有限公司 Halogen-free flame-retardant anti-mildew composite and preparation method thereof
CN104403236A (en) * 2014-12-22 2015-03-11 孙宝林 PVC-PP (polyvinyl chloride-polypropylene) foamed composite floor material
CN105924999A (en) * 2016-07-07 2016-09-07 安徽国风木塑科技有限公司 Toughening type modified wood-plastic composite material and preparation method thereof
CN106479210A (en) * 2016-11-08 2017-03-08 佛山市炬业科技有限公司 For making plastic-wood material of shock resistance door-plate and preparation method thereof
CN106496866A (en) * 2016-11-08 2017-03-15 佛山市炬业科技有限公司 A kind of plastic-wood material for making fire-retardant door pocket and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108327371A (en) * 2018-03-16 2018-07-27 佛山市利丰日用品有限公司 A kind of composite PVC table top and preparation method thereof

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