CN110978308A - Production method of degradable wood-plastic mixture particles - Google Patents
Production method of degradable wood-plastic mixture particles Download PDFInfo
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- CN110978308A CN110978308A CN201910635625.8A CN201910635625A CN110978308A CN 110978308 A CN110978308 A CN 110978308A CN 201910635625 A CN201910635625 A CN 201910635625A CN 110978308 A CN110978308 A CN 110978308A
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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
- B29B7/005—Methods for mixing in batches
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Abstract
The invention discloses a production method of degradable wood-plastic mixture particles, which comprises the following steps: weighing PP, PE, TPE or ABS raw materials according to a certain proportion; step two, weighing the wood-plastic raw materials according to a certain mixing proportion requirement, drying according to the process requirement, and then storing in a sealed manner; step three, weighing the toner or the color master batch according to the proportion; step four, mixing PP, PE, TPE or ABS raw materials, wood-plastic raw materials and toner or color master batch according to a certain proportion, and then putting the mixture into a stirrer; step five, stirring for a certain time by using a stirrer; step six, after stirring and mixing, closing a stirrer for standby production, and step seven, after high-temperature dewatering, placing the mixed raw materials into a double-screw mixing extruder, and extruding and granulating the raw materials under a certain temperature condition, wherein compared with the prior art, the invention has the beneficial effects that: by mixing the plastic raw materials such as PP, PE or TPE and the like with the wood-plastic raw materials in a certain proportion, the toughness, strength and tensile strength of the finished product can be greatly improved.
Description
Technical Field
The invention relates to the field of production methods of degradable materials, in particular to a production method of degradable wood-plastic mixture particles.
Background
With the enhancement of environmental awareness, a large amount of wood-plastic materials emerge in domestic and international markets at present to replace the existing traditional plastics, but the following main defects exist in daily production practice based on the limitation of the production process and raw material composition of novel wood-plastic raw materials:
1. the injection molding processing and the die manufacturing have higher requirements, the injection molding process is directly related to the melt temperature, and the injection molding process needs to be controlled by accurately adjusting the rotating speed, the back pressure and the processing temperature of a balance screw, so that the rejection rate of finished products in production is higher;
2. because the novel wood-plastic raw materials have limitations in composition, the appearance and physical properties of the final finished product are not enough: the surface is easy to form injection flow marks, has insufficient toughness and is easy to break;
3. the surface coloring effect is poor, and the color fastness of the printed pattern is insufficient.
Disclosure of Invention
The invention aims to provide a production method of degradable wood-plastic mixture particles, which can utilize plastic raw materials such as ABS, PP, PE or TPE and the like in a certain proportion, greatly improve the toughness, tensile strength, rigidity and flexural modulus of finished products, simultaneously improve the dimensional precision of the finished products, improve the surface coloring effect and the color fastness of printed patterns of the finished products and reduce the production defective rate.
In order to achieve the purpose, the invention provides the following technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing PP, PE, TPE or ABS raw materials according to a certain proportion.
And step two, weighing the wood-plastic raw materials according to a certain mixing proportion requirement, drying according to the process requirement, and then storing in a sealed manner.
And step three, weighing the toner or the color master batch according to the mixture ratio.
And step four, mixing PP, PE, TPE or ABS raw materials, wood-plastic raw materials and toner or color master batch according to a certain proportion, and then putting the mixture into a stirrer.
And step five, stirring for a certain time by using a stirrer.
And step six, turning off the stirrer for standby production after stirring and mixing are finished.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at a certain temperature.
Further, in the first step, the proportion of the PP, PE or TPE plastic raw materials is 10% -50%.
Further, in the first step, the proportion of the ABS raw material is 10% -50%.
Further, in the second step, the proportion of the wood-plastic raw material is 45% -85%.
Further, in the third step, the proportion of the toner or the color master batch is 1-5%.
Further, in the fifth step, the stirring time of the stirrer is 15-30 minutes.
Further, in the seventh step, the granulation temperature is 155-170 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. by mixing a certain proportion of PP, PE or TPE plastic raw materials with wood-plastic raw materials, the toughness and tensile strength of a finished product can be greatly improved, and the finished product is not easy to break;
2. by mixing the ABS raw material and the wood-plastic raw material in a certain proportion, the rigidity and the flexural modulus of a finished product can be greatly improved, and the dimensional accuracy of the finished product can be greatly improved;
3. the surface coloring effect and the color fastness of the printed pattern of the finished product are obviously improved.
4. The requirement of the injection molding process on technological parameters is reduced, and the defective rate of production is effectively reduced.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing PP, PE, TPE or ABS raw materials according to a certain proportion.
And step two, weighing the wood-plastic raw materials according to a certain mixing proportion requirement, drying according to the process requirement, and then storing in a sealed manner.
And step three, weighing the toner or the color master batch according to the mixture ratio.
And step four, mixing PP, PE, TPE or ABS raw materials, wood-plastic raw materials and toner or color master batch according to a certain proportion, and then putting the mixture into a stirrer.
And step five, stirring for a certain time by using a stirrer.
And step six, turning off the stirrer for standby production after stirring and mixing are finished.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at a certain temperature.
The first embodiment,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing PP, PE or TPE raw materials in a proportion of 10%.
And step two, weighing the wood-plastic raw material with the proportion of 85%.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 5% of toner or color master batch.
And step four, mixing PP, PE or TPE raw materials with a proportion of 10%, wood-plastic raw materials with a proportion of 85% and toner or color master batch with a proportion of 5%, and then putting the mixture into a stirrer.
And step five, stirring for 15 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at the temperature of 155 ℃.
Wherein: the toughness and tensile strength of the finished product can be greatly improved by adding PP, PE or TPE raw materials, and the surface coloring effect is improved.
Example II,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing 50% of PP, PE or TPE raw materials.
And step two, weighing the wood-plastic raw materials in a proportion of 45%.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 5% of toner or color master batch.
And step four, mixing PP, PE or TPE raw materials with a proportion of 50%, wood-plastic raw materials with a proportion of 45% and toner or color master batch with a proportion of 5%, and then putting the mixture into a stirrer.
And step five, stirring for 30 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at the temperature of 170 ℃.
Wherein: the toughness and tensile strength of the finished product can be greatly improved by adding PP, PE or TPE raw materials, and the surface coloring effect is improved.
Example III,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing PP, PE or TPE raw materials with a proportion of 35%.
Step two, weighing the 62% of wood-plastic raw material.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 3% of toner or color master batch.
And step four, mixing the PP, PE or TPE raw material with the proportion of 35%, the wood-plastic raw material with the proportion of 62% and the toner or color master batch with the proportion of 3%, and then putting the mixture into a stirrer.
And step five, stirring for 20 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at 160 ℃.
Wherein: the toughness and tensile strength of the finished product can be greatly improved by adding PP, PE or TPE raw materials, and the surface coloring effect is improved.
Example four,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing 10% of ABS raw material.
And step two, weighing the wood-plastic raw material with the proportion of 85%.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 5% of toner or color master batch.
And step four, mixing 10% of ABS raw material, 85% of wood-plastic raw material and 5% of toner or color master batch, and then putting the mixture into a stirrer.
And step five, stirring for 15 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at the temperature of 155 ℃.
Wherein: the rigidity and the flexural modulus of the finished product can be greatly improved by adding the ABS raw material, and the color fastness of the surface printing pattern can be greatly improved.
Example V,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing 50% of ABS raw material.
And step two, weighing the wood-plastic raw materials in a proportion of 45%.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 5% of toner or color master batch.
And step four, mixing 50% of ABS raw material, 45% of wood-plastic raw material and 5% of toner or color master batch, and then putting the mixture into a stirrer.
And step five, stirring for 30 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at the temperature of 170 ℃.
Wherein: the rigidity and the flexural modulus of the finished product can be greatly improved by adding the ABS raw material, and the color fastness of the surface printing pattern can be greatly improved.
Example six,
The embodiment provides a technical scheme: a production method of degradable wood-plastic mixture particles comprises the following steps:
step one, weighing 35% of ABS raw material.
Step two, weighing the 62% of wood-plastic raw material.
And further drying the weighed wood-plastic raw materials according to the process requirements, and further hermetically storing.
And step three, weighing 3% of toner or color master batch.
And step four, mixing 35% of ABS raw material, 62% of wood-plastic raw material and 3% of toner or color master batch, and then putting the mixture into a stirrer.
And step five, stirring for 20 minutes by using a stirrer.
And step six, stirring and mixing to finish the standby production of turning off the stirrer.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at 160 ℃.
Wherein: the rigidity and the flexural modulus of the finished product can be greatly improved by adding the ABS raw material, and the color fastness of the surface printing pattern can be greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The production method of the degradable wood-plastic mixture particles is characterized by comprising the following steps:
step one, weighing PP, PE, TPE or ABS raw materials according to a certain proportion.
And step two, weighing the wood-plastic raw materials according to a certain mixing proportion requirement, drying according to the process requirement, and then storing in a sealed manner.
And step three, weighing the toner or the color master batch according to the mixture ratio.
And step four, mixing PP, PE, TPE or ABS raw materials, wood-plastic raw materials and toner or color master batch according to a certain proportion, and then putting the mixture into a stirrer.
And step five, stirring for a certain time by using a stirrer.
And step six, turning off the stirrer for standby production after stirring and mixing are finished.
And seventhly, placing the mixed raw materials into a double-screw mixing extruder after high-temperature dewatering, and extruding and granulating at a certain temperature.
2. The method for producing degradable wood-plastic composite particles according to claim 1, wherein the method comprises the following steps: in the first step, the proportion of PP, PE or TPE and other plastic raw materials is 10% -50%.
3. The method for producing degradable wood-plastic composite particles according to claim 1, wherein the method comprises the following steps: in the first step, the proportion of the ABS raw material is 10-50%.
4. The method for producing degradable wood-plastic composite particles according to claim 1, wherein the method comprises the following steps: and in the second step, the proportion of the wood-plastic raw material is 45-85%.
5. The method for producing degradable wood-plastic composite particles according to claim 4, wherein the method comprises the following steps: the proportion of the toner or the color master batch in the third step is 1 to 5 percent.
6. The method for producing degradable wood-plastic composite particles according to claim 1, wherein the method comprises the following steps: and in the fifth step, the stirring time of the stirrer is 15-30 minutes.
7. The method for producing degradable wood-plastic composite particles according to claim 1, wherein the method comprises the following steps: the granulation temperature in the seventh step is 155-170 ℃.
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| CN201910635625.8A CN110978308A (en) | 2019-07-15 | 2019-07-15 | Production method of degradable wood-plastic mixture particles |
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| CN201910635625.8A CN110978308A (en) | 2019-07-15 | 2019-07-15 | Production method of degradable wood-plastic mixture particles |
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Citations (5)
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| CN1445285A (en) * | 2002-03-14 | 2003-10-01 | 北新建材(集团)有限公司 | Modified composite material of woods and plastics as well as its usage and manufacturing method |
| DE10304095A1 (en) * | 2003-01-31 | 2004-08-12 | Vgt-Polycom Gmbh | Production of wood fiber-reinforced plastics agglomerate, for extrusion or injection molding e.g. to structural or molded component, from fibers, additives and plastics powder or granulate uses hot mixer then larger cool mixer |
| CN101289560A (en) * | 2008-06-06 | 2008-10-22 | 韩进军 | Wood plastic boards and method for making same |
| CN102977622A (en) * | 2012-11-13 | 2013-03-20 | 无锡顺铉新材料有限公司 | Elastomer toughening wood-plastic composite material and preparation method thereof |
| CN108795081A (en) * | 2017-05-01 | 2018-11-13 | 张家界恒林生态木有限公司 | A kind of environment-friendlywood-plastic wood-plastic composite material and preparation method thereof |
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2019
- 2019-07-15 CN CN201910635625.8A patent/CN110978308A/en active Pending
Patent Citations (5)
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| CN1445285A (en) * | 2002-03-14 | 2003-10-01 | 北新建材(集团)有限公司 | Modified composite material of woods and plastics as well as its usage and manufacturing method |
| DE10304095A1 (en) * | 2003-01-31 | 2004-08-12 | Vgt-Polycom Gmbh | Production of wood fiber-reinforced plastics agglomerate, for extrusion or injection molding e.g. to structural or molded component, from fibers, additives and plastics powder or granulate uses hot mixer then larger cool mixer |
| CN101289560A (en) * | 2008-06-06 | 2008-10-22 | 韩进军 | Wood plastic boards and method for making same |
| CN102977622A (en) * | 2012-11-13 | 2013-03-20 | 无锡顺铉新材料有限公司 | Elastomer toughening wood-plastic composite material and preparation method thereof |
| CN108795081A (en) * | 2017-05-01 | 2018-11-13 | 张家界恒林生态木有限公司 | A kind of environment-friendlywood-plastic wood-plastic composite material and preparation method thereof |
Non-Patent Citations (2)
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| 应礼文: "《走向高分子时代》", 31 October 1991, 南宁：广西教育出版社 * |
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