CN109762267B - Papermaking waste/PVC composite material - Google Patents
Papermaking waste/PVC composite material Download PDFInfo
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- CN109762267B CN109762267B CN201811565421.3A CN201811565421A CN109762267B CN 109762267 B CN109762267 B CN 109762267B CN 201811565421 A CN201811565421 A CN 201811565421A CN 109762267 B CN109762267 B CN 109762267B
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Abstract
The invention belongs to the technical field of polymer composite materials, and particularly relates to a papermaking waste/PVC composite material. The papermaking waste/PVC composite material comprises the following components in parts by weight: 50-120 parts of PVC resin, 50-120 parts of inorganic mineral substances, 5-40 parts of plant fibers, 5-40 parts of papermaking waste, 1-15 parts of processing aid, 0.5-5 parts of coupling agent, 1-8 parts of heat stabilizer and 0.1-3 parts of external lubricant. The papermaking waste/PVC composite material has good compatibility among all components, and the excellent dispersibility and fluidity of the components enable the finished product of the papermaking waste/PVC composite material to have excellent processing performance. In addition, due to the reasonable addition of the papermaking waste, the production cost of the papermaking waste/PVC composite material is reduced, and the prepared papermaking waste/PVC composite material has smooth surface and high strength, so that the papermaking waste/PVC composite material has good market prospect.
Description
Technical Field
The invention belongs to the technical field of polymer composite materials, and particularly relates to a papermaking waste/PVC composite material.
Background
The PVC (polyvinyl chloride) based composite material is a high molecular composite material formed by adding various fillers and functional additives into PVC resin, adding the mixture into a high-speed mixer for mixing, and then performing melt extrusion molding. At present, the PVC-based composite section is mainly applied to the field of indoor building materials, such as indoor doors and windows, wallboards, floors and the like.
However, in the practical application process, the existing PVC composite material often shows the defects of shrinkage deformation, low strength, poor thermal stability, and the like.
According to statistics, more than 95 percent of the papermaking waste is still used as industrial pulping waste, and is combusted after being concentrated or directly discharged into rivers along with waste water. Therefore, the discharge of the pulping waste water not only wastes resources, but also seriously pollutes the environment. Therefore, how to realize the high-efficiency resource utilization of the papermaking waste has important significance on the development of social economy and environmental protection.
In the prior art, the addition of plant fibers into PVC composite materials can improve melt viscosity and product rigidity, but also improve the processing difficulty of the PVC composite materials. In addition, PVC belongs to a hard and brittle material, has low impact strength and is easy to crack when being impacted by external force. In order to expand the application range, the elastomer is commonly used for toughening and modifying the rigid PVC, however, the rigidity of the material is inevitably reduced after the modification. In addition, how to improve the compatibility between the filler and the polymer is one of the current research hotspots of developers in the field.
Disclosure of Invention
The invention aims to provide a brand-new PVC (polyvinyl chloride) based composite material which is mainly compounded by papermaking waste and PVC resin, thereby realizing the effective recycling of the papermaking waste. Meanwhile, the mechanical property of the PVC-based composite material provided by the invention is obviously superior to that of the existing PVC-based composite material sold in the market.
Specifically, the invention provides a papermaking waste/PVC composite material, which comprises the following components in parts by weight:
the papermaking waste/PVC composite material prepared by adopting the formula has a smooth surface and shows excellent mechanical properties.
Preferably, in the above paper mill waste/PVC composite, the inorganic mineral is selected from any one or more of: calcium carbonate, calcium sulfate, talcum powder, calcium silicate and montmorillonite.
Preferably, in the papermaking waste/PVC composite material, the particle size of the plant fiber is 50-200 meshes.
Further preferably, in the above paper mill waste/PVC composite, the plant fiber is selected from any one or more of the following: wood flour, bamboo powder, rice hulls and crop straws.
Preferably, in the papermaking waste/PVC composite material, the particle size of the papermaking waste is 50-2000 meshes.
Further preferably, in the above paper making waste/PVC composite, the paper making waste is selected from any one or more of the following: the wood pulp contains the following components of rotten pulp, pulp residue, wood bark, pulping waste liquor extract and siliceous white mud.
Preferably, in the above papermaking waste/PVC composite, the processing aid is selected from any one or more of: chlorinated Polyethylene (CPE), acrylate rubber (ACM), ethylene-vinyl acetate copolymer (EVA), methyl methacrylate-butadiene-styrene copolymer (MBS), styrene-butadiene-styrene triblock copolymer (SBS).
Preferably, in the above papermaking waste/PVC composite, the coupling agent is selected from any one or more of: silane coupling agent, titanate coupling agent and aluminum zirconium coupling agent.
Preferably, in the above papermaking waste/PVC composite, the heat stabilizer is selected from any one or more of the following: calcium-zinc composite stabilizer, lead composite stabilizer, organic tin stabilizer and barium-zinc composite stabilizer.
Preferably, in the above papermaking waste/PVC composite, the external lubricant is stearic acid.
Meanwhile, the invention also provides a preparation method of the papermaking waste/PVC composite material, which comprises the following steps:
(1) weighing various raw materials according to a ratio, firstly, adding plant fibers, papermaking waste, inorganic mineral substances, processing aids and coupling agents into a high-speed stirrer, heating to 110 ℃, adding a heat stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed materials into a cold mixing pot, cooling to 30-50 ℃, and obtaining a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine for later use to measure the mechanical property.
The papermaking waste/PVC composite material provided by the invention has the following beneficial effects:
the papermaking waste/PVC composite material has good compatibility among all components, and the excellent dispersibility and fluidity of the components enable the finished product of the papermaking waste/PVC composite material to have excellent processing performance. In addition, due to the reasonable addition of the papermaking waste, the production cost of the papermaking waste/PVC composite material is reduced, and the prepared papermaking waste/PVC composite material has smooth surface and high strength, so that the papermaking waste/PVC composite material has good market prospect.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the present invention is not limited to the following embodiments.
Example 1
The papermaking waste/PVC composite material comprises the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 5 parts of papermaking waste, 10 parts of CPE, 2 parts of KH550 (silane coupling agent), 5 parts of rare earth calcium zinc stabilizer (calcium zinc composite stabilizer) and 1 part of stearic acid.
The papermaking waste/PVC composite is prepared according to the above formulation and following steps:
(1) weighing various raw materials according to a ratio, firstly, adding wood powder, papermaking waste, calcium carbonate, CPE and KH550 into a high-speed stirrer, heating to 110 ℃, adding a rare earth calcium zinc stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed materials into a cold mixing pot, cooling to 30-50 ℃, and obtaining a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and finally measuring the mechanical properties of the sample, wherein the detection results are shown in table 1.
Example 2
The papermaking waste/PVC composite material comprises the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 10 parts of papermaking waste, 10 parts of CPE (chlorinated polyethylene), 2 parts of KH550 (silane coupling agent), 5 parts of rare earth calcium zinc stabilizer (calcium zinc composite stabilizer) and 1 part of stearic acid.
The papermaking waste/PVC composite is prepared according to the above formulation and following steps:
(1) weighing various raw materials according to a ratio, firstly, adding wood powder, papermaking waste, calcium carbonate, CPE and KH550 into a high-speed stirrer, heating to 110 ℃, adding a rare earth calcium zinc stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed materials into a cold mixing pot, cooling to 30-50 ℃, and obtaining a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and finally measuring the mechanical properties of the sample, wherein the detection results are shown in table 1.
Example 3
The papermaking waste/PVC composite material comprises the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 15 parts of papermaking waste, 10 parts of CPE (chlorinated polyethylene), 2 parts of KH550 (silane coupling agent), 5 parts of rare earth calcium zinc stabilizer (calcium zinc composite stabilizer) and 1 part of stearic acid.
The papermaking waste/PVC composite is prepared according to the above formulation and following steps:
(1) weighing various raw materials according to a ratio, firstly, adding wood powder, papermaking waste, calcium carbonate, CPE and KH550 into a high-speed stirrer, heating to 110 ℃, adding a rare earth calcium zinc stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed materials into a cold mixing pot, cooling to 30-50 ℃, and obtaining a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and finally measuring the mechanical properties of the sample, wherein the detection results are shown in table 1.
Example 4
The papermaking waste/PVC composite material comprises the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 20 parts of papermaking waste, 10 parts of CPE, 2 parts of KH550 (silane coupling agent), 5 parts of rare earth calcium zinc stabilizer (calcium zinc composite stabilizer) and 1 part of stearic acid.
The papermaking waste/PVC composite is prepared according to the above formulation and following steps:
(1) weighing various raw materials according to a ratio, firstly, adding wood powder, papermaking waste, calcium carbonate, CPE and KH550 into a high-speed stirrer, heating to 110 ℃, adding a rare earth calcium zinc stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed materials into a cold mixing pot, cooling to 30-50 ℃, and obtaining a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and finally measuring the mechanical properties of the sample, wherein the detection results are shown in table 1.
Comparative example
The papermaking waste/PVC composite material comprises the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 10 parts of CPE, 2 parts of KH550 (silane coupling agent), 5 parts of rare earth calcium zinc stabilizer (calcium zinc composite stabilizer) and 1 part of stearic acid.
The papermaking waste/PVC composite is prepared according to the above formulation and following steps:
(1) weighing various raw materials according to a ratio, firstly adding wood powder, calcium carbonate, CPE and KH550 into a high-speed stirrer, heating to 110 ℃, adding a rare earth calcium zinc stabilizer, PVC resin and an external lubricant, fully stirring, heating to 130 ℃, putting the mixed material into a cold mixing pot for cooling, and cooling to 30-50 ℃ to obtain a primary mixed material;
(2) and adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain the sheet of the papermaking waste/PVC composite material.
(3) And (3) performing multilayer folding on the sheet, then putting the sheet into a press vulcanizer die to be pressed and molded while the sheet is hot, performing hot pressing at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and molding.
(4) And milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and finally measuring the mechanical properties of the sample, wherein the detection results are shown in table 1.
TABLE 1 test results of the main indices of the samples
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example | |
| Tensile Strength (MPa) | 33.1 | 34.6 | 36.4 | 32.2 | 30.6 |
| Impact Strength (KJ/m)2) | 16.3 | 17.2 | 17.5 | 16.6 | 14.3 |
| Density g/m3 | 0.94 | 0.93 | 0.93 | 0.92 | 0.94 |
Data analysis shows that the tensile strength and the impact strength of the papermaking waste/PVC composite material provided by the invention are obviously greater than those of a comparative sample; therefore, the finished product of the papermaking waste/PVC composite material has excellent processing performance, thereby having good market prospect.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (1)
1. The papermaking waste/PVC composite material is characterized by comprising the following components in parts by weight: 100 parts of PVC resin, 100 parts of calcium carbonate, 20 parts of wood powder, 15 parts of papermaking waste, 10 parts of chlorinated polyethylene, KH 5502 parts of silane coupling agent, 5 parts of rare earth calcium zinc stabilizer and 1 part of stearic acid;
wherein the particle size of the plant fiber is 50-200 meshes; the particle size of the papermaking waste is 50-2000 meshes; the papermaking waste is selected from any one or more of the following: the slurry is prepared from the following raw materials of rotten slurry, slurry slag, wood veneer and siliceous white mud;
the preparation method of the papermaking waste/PVC composite material comprises the following steps:
s1, weighing various raw material components according to a ratio, adding calcium carbonate, wood powder, papermaking waste, chlorinated polyethylene and a silane coupling agent KH550 into a high-speed stirrer, and heating to 110 ℃; adding PVC resin, rare earth calcium zinc stabilizer and stearic acid, fully stirring, and heating to 130 ℃; putting the mixed materials into a cold mixing pot for cooling, and cooling to 30-50 ℃ to obtain primary mixed materials;
s2, adding the primary mixed material into an open mill, heating and blending, and processing and forming at 140-190 ℃ to obtain a sheet of the papermaking waste/PVC composite material;
s3, performing multi-layer folding on the sheet, putting the sheet into a press vulcanizer mold while the sheet is hot, performing press forming at the temperature of 140-190 ℃ under the pressure of 8-20 MPa for 5-20 min, and performing cold pressing and shaping;
s4, milling dumbbell-shaped and rectangular sample bars on the cold-pressed and shaped sheet by using a universal sampling machine, and measuring the mechanical properties of the sample: the tensile strength is 36.4MPa, and the impact strength is 17.5KJ/m2Density of 0.93g/cm3。
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| CN111269501B (en) * | 2020-02-12 | 2022-05-24 | 上海昶法新材料有限公司 | PVC micro-foaming section bar, raw material, preparation method and application thereof |
| CN112961436B (en) * | 2021-03-03 | 2023-04-07 | 海南蓝岛环保产业股份有限公司 | Plastic product and preparation method thereof |
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| CN102492305A (en) * | 2011-12-02 | 2012-06-13 | 山东理工大学 | Formulation for preparing wood-plastic composite material from papermaking solid wastes and method thereof |
| CN104479223A (en) * | 2014-12-18 | 2015-04-01 | 广西大学 | Wood-plastic composite prepared by use of short fiber and preparation method thereof |
| CN108384139A (en) * | 2018-02-13 | 2018-08-10 | 南京工业大学 | A kind of PVC- lignin-sulfate wood plastic composite and preparation method thereof |
| CN108948761A (en) * | 2017-05-18 | 2018-12-07 | 济宁明升新材料有限公司 | A kind of lignin/PVC fretting map composite material and preparation method thereof |
| CN108948561A (en) * | 2017-05-18 | 2018-12-07 | 济宁明升新材料有限公司 | A kind of lignin starch/PVC fretting map composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105064658B (en) * | 2014-03-21 | 2017-08-25 | 浙江天振竹木开发有限公司 | A kind of mute floor board |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492305A (en) * | 2011-12-02 | 2012-06-13 | 山东理工大学 | Formulation for preparing wood-plastic composite material from papermaking solid wastes and method thereof |
| CN104479223A (en) * | 2014-12-18 | 2015-04-01 | 广西大学 | Wood-plastic composite prepared by use of short fiber and preparation method thereof |
| CN108948761A (en) * | 2017-05-18 | 2018-12-07 | 济宁明升新材料有限公司 | A kind of lignin/PVC fretting map composite material and preparation method thereof |
| CN108948561A (en) * | 2017-05-18 | 2018-12-07 | 济宁明升新材料有限公司 | A kind of lignin starch/PVC fretting map composite material and preparation method thereof |
| CN108384139A (en) * | 2018-02-13 | 2018-08-10 | 南京工业大学 | A kind of PVC- lignin-sulfate wood plastic composite and preparation method thereof |
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