CN115160706B - Rice hull-based silicon carbon black/polyvinyl chloride composite material - Google Patents
Rice hull-based silicon carbon black/polyvinyl chloride composite material Download PDFInfo
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- CN115160706B CN115160706B CN202210130833.4A CN202210130833A CN115160706B CN 115160706 B CN115160706 B CN 115160706B CN 202210130833 A CN202210130833 A CN 202210130833A CN 115160706 B CN115160706 B CN 115160706B
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 59
- 235000009566 rice Nutrition 0.000 title claims abstract description 59
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 41
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 41
- 239000006229 carbon black Substances 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 58
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000012760 heat stabilizer Substances 0.000 claims description 5
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- -1 liquid paraffin Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- 239000010903 husk Substances 0.000 abstract description 8
- 229920000642 polymer Polymers 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a rice husk-based silicon carbon black/polyvinyl chloride composite material, which is prepared by directionally crushing rice husk carbon through crushing equipment; the carbon content of the rice hull carbon is 45-52%, and the silicon content is 43-50%; classifying the crushed rice hull carbon to obtain rice hull carbon powder with the particle diameter D90 index of 18-25 μm; adding rice hull carbon powder into a treating agent for high-speed uniform mixing to obtain a filler; the temperature is between 70 and 90 ℃ and the rotating speed is 760r/min to 1000r/min; mixing filler and PVC, extruding and granulating to obtain rice hull-based silicon carbon black/polyvinyl chloride material, wherein the mass ratio of the filler to the PVC is (0.1-0.36): 1, the processing temperature is 160-190 ℃, the rotating speed is 15-35rpm, and the carbon black is modified and surface treated by adding the treating agent, so that the carbon black has the relevant properties used in the carbon black field.
Description
Technical Field
The invention belongs to the technical field of biomass and polymer composite materials, and particularly relates to a rice hull-based silicon carbon black/polyvinyl chloride composite material.
Background
Carbon black is produced by incomplete combustion or cracking of hydrocarbon materials. Carbon black has wide application, and can be used for reinforcing rubber products, and other materials, such as paint, oil paint, ink, toner, electronic products, plastics, fibers, batteries and the like, so as to endow the products with the required coloring, ultraviolet aging resistance, static resistance or electric conductivity. As a large agricultural country, a great number of rice hulls are used in industries such as thermal power generation and the like every year, the generated rice hull carbon is discarded or utilized in the heat preservation industry, and the rice hull carbon is extremely easy to generate dust in an exposed environment due to light weight, so that the environment is greatly influenced.
The polyvinyl chloride composite material has excellent comprehensive performance and is widely used in various fields of national production, automobile manufacturing, transportation and daily life. With the improvement of the performance requirements of the polyvinyl chloride material and the further widening of the application range, the higher requirements on the functionality and the cost performance of the polyvinyl chloride composite system are provided. The improvement of the properties of the polyvinyl chloride material is realized by adding filler and polymer to realize the combined action, such as the fineness, shape and surface structure of the filler, the choice of the polymer and the like, thereby influencing the mechanical properties (such as density, tensile yield stress, longitudinal recovery rate, impact strength and the like) and the processing performance of the material, and the melt flow rate of the polymer is reduced along with the increase of the filling amount, so that the processing becomes difficult and the mechanical properties are reduced, which are not neglected.
CN103849018A discloses a preparation method of rice hull ash composite material. The rice hull ash composite material is prepared from 100 parts by weight of polymer resin, 0-1 part by weight of antioxidant, 0-3 parts by weight of light stabilizer, 0-5 parts by weight of lubricant, 5-50 parts by weight of rice hull ash or 10-200 parts by weight of rice hull ash master batch, 0-100 parts by weight of reinforcing fiber and 0-2 parts by weight of compatibilizer, wherein the composite material prepared by adding low-cost renewable functional filler rice hull ash and carrying out surface coupling treatment and melt mixing of polymer in a double-screw extruder shows a glossy uniform black color. In the current research, the application of biomass materials in polymers has been tried in many beneficial ways, providing important reference value for research and development in related aspects. However, many industrial applications of biomass materials and polymer composites are needed, such as the effects of material composition, shape, surface defects, organic modification, etc. on the properties of polymer composites are still in need of intensive research.
Disclosure of Invention
The invention aims to provide a rice hull-based silicon carbon black/polyvinyl chloride composite material, which utilizes the natural carbon silicon content ratio in the rice hull-based carbon material, and modifies and surface-treats the rice hull-based carbon material by adding a treating agent, so that the rice hull-based carbon black/polyvinyl chloride composite material has the relevant performance utilized in the field of carbon black, and the method improves the utilization rate of the rice hull carbon in the chemical industry and reduces the influence of rice hull carbon emission on the environment while obtaining carbon black with better reinforcing performance.
The aim of the invention is realized by the following technical scheme:
a rice hull-based silicon carbon black/polyvinyl chloride composite material is prepared by the following steps:
firstly, directionally crushing rice hull carbon through crushing equipment; the carbon content of the rice hull carbon is 45-52%, and the silicon content is 43-50%;
step two, classifying the crushed rice hull carbon to obtain rice hull carbon powder with the particle size D90 index of 18-25 mu m;
step three, adding rice hull carbon powder into a treating agent for high-speed uniform mixing to obtain a filler; the temperature is between 70 and 90 ℃ and the rotating speed is 760r/min to 1000r/min;
step four, mixing the filler and PVC, extruding and granulating to obtain the rice hull-based silicon carbon black/PVC material, wherein the mass ratio of the filler to the PVC is (0.1-0.36): 1, wherein the processing temperature is 160-190 ℃ and the rotating speed is 15-35rpm.
As a better technical scheme of the invention: the treating agent in the third step is one or more of maleic anhydride grafting compatilizer, ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA) and styrene-butadiene-styrene block copolymer (SBS).
As a better technical scheme of the invention: the mass ratio of the treating agent to the rice hull carbon powder in the third step is (0.09-0.27): 1.
as a better technical scheme of the invention: the treating agent in the third step is a mixture of three components of ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA) and styrene-butadiene-styrene block copolymer (SBS), wherein the mass ratio is 1:3:3.
as a better technical scheme of the invention: and in the third step, one or a mixture of two or more of a heat stabilizer, a lubricant, an antioxidant and a sedimentation agent is added.
As a better technical scheme of the invention: the lubricant is one or a mixture of two or more of stearic acid, butyl stearate, liquid paraffin, solid paraffin and polyethylene wax.
As a better technical scheme of the invention: the antioxidant is antioxidant 1010, antioxidant 168 or a mixture of antioxidant 1010 and antioxidant 168.
As a better technical scheme of the invention: the heat stabilizer comprises any one of a calcium-zinc stabilizer, a metal soap stabilizer and a lead salt stabilizer.
As a better technical scheme of the invention: one or more of the sedimentation agent AQ-633E, RHEOLATE299 and VEsmody U505.
The beneficial effects are as follows:
in order to improve the filling performance and the reinforcing effect of the rice hull-based silicon carbon black in polyvinyl chloride, the invention utilizes the natural nano structure and the uniform distribution characteristic of silicon dioxide in rice hulls, adopts a directional crushing method to prepare the rice hull carbon powder material, and then carries out modification through a treating agent to endow the powder with the function when the powder is applied in polyvinyl chloride.
According to the polyvinyl chloride modified silicon carbon black disclosed by the invention, because the rice hull carbon is adopted, no additional silicon substances are required to be added, and the natural carbon and silicon dioxide in the rice hull carbon are utilized, so that the effect and effect of the silicon dioxide in the carbon black are achieved.
Compared with the traditional rice hull carbon black modification treatment method, the polyvinyl chloride modified silicon carbon black disclosed by the invention is beneficial to realizing actual production and simplifying the preparation process.
The polyvinyl chloride modified silicon carbon black disclosed by the invention can improve the cold resistance and impact resistance of polyvinyl chloride, reduce the longitudinal recovery rate of the polyvinyl chloride and improve the heat stability and shaping capability.
The actual density of the silicon carbon black added into PVC is between 1.25 and 1.28g/cm3, while the traditional filler is mostly calcium carbonate (density is 2.4 to 2.8g/cm 3), talcum powder (density is 2.7 to 2.8g/cm 3) and the like, and the silicon carbon black is added into polyvinyl chloride materials for application, the performance index requires that the mass ratio of the silicon carbon black added by the invention is reduced, thereby reducing the specific gravity of products,
Detailed Description
The present invention will be described in detail with reference to specific examples.
For more detailed explanation of the present invention, the following preparation examples are given, but the scope of the present invention is not limited thereto. The raw materials used in the examples are commercially available products unless otherwise specified.
1. Preparing a filling material:
the invention provides a method for producing rice husk-based silicon carbon black/polyvinyl chloride composite material, which comprises the steps of crushing rice husk carbon through a crusher, classifying, screening out powder with qualified particle size, adding a treating agent, and treating, wherein the method comprises the following steps: and (3) carrying out directional crushing on the rice husk carbon impurities by crushing equipment. The rice hull carbon can be self-made or purchased and does not contain impurities, wherein the content of the fixed carbon is 45-52%, and the content of the silicon is 43-50%. The crushed rice husk carbon is subjected to granularity level control by a grading device, and rice husk carbon powder with the grain diameter of 15-25 μm is obtained. Conveying rice husk carbon powder with qualified grain size into a high-stirring pot, setting the pot temperature between 70 and 90 ℃, and adding a treating agent into the pot with the addition mass ratio of (0.09-0.27): 1, the rotating speed is 760-1000 r/min after high-speed mixing. And uniformly mixing the rice hull carbon powder and the treating agent for 15-30 min and discharging. Packaging the mixed powder.
Examples 1-14 are shown in Table 1 below.
TABLE 1
2. The filler obtained in the above examples 1 to 14 was mixed with PVC to be applied to the production of a pipe made of polyvinyl chloride material, and the mass ratio of the filler to PVC was (0.1 to 0.36): 1, wherein the processing temperature is 160-190 ℃ and the rotating speed is 15-35rpm.
TABLE 2
Other embodiments incorporate other additives, such as one, two or more mixtures of heat stabilizers, lubricants, antioxidants, and settling agents, with altered properties, but without unexpected technical effects.
3. The results of the performance test of the products of the pipes obtained in Table 2 are shown in Table 3.
Drop hammer impact test: the PVC test piece is placed on a cantilever type fixing instrument clamp and is kept at a constant temperature in a low-temperature mechanism with accurate temperature control, after the temperature reaches a certain temperature, a specified punch and a specified impact test piece are used for bending the test piece into 90 degrees along the arc of a furniture lower jaw with a specified radius, and the damage percentage of the test piece is observed and recorded.
Cold-resistant falling test (GB/T8801-2007): experimental sample piece: three groups of 0.1, 0.3 and 0.36 PVC pipes of different contents were prepared and added with the formulation of the example, each 5 pipes having a nominal diameter of 110mm. The experimental steps are as follows: the three groups of sample pieces are placed into low-temperature equipment for cooling, when the temperature reaches-50 ℃, the temperature is kept constant for 240min, the three groups of sample pieces are respectively placed at a height of 1 meter from the ground within 10 seconds after being taken out, the three groups of sample pieces freely fall, the damage condition is observed, and the 5 samples of the same component are noticed to be grounded at different positions.
TABLE 3 Table 3
Claims (6)
1. The rice hull-based silicon carbon black/polyvinyl chloride composite material is characterized by comprising the following preparation method:
firstly, directionally crushing rice hull carbon through crushing equipment; the carbon content of the rice hull carbon is 45% -52%, and the silicon content is 43% -50%;
classifying the crushed rice hull carbon to obtain rice hull carbon powder with a particle size D90 index of 18-25 mu m;
step three, adding rice hull carbon powder into a treating agent for high-speed uniform mixing to obtain a filler; the temperature is 70-90 ℃, and the rotating speed is 760 r/min-1000 r/min;
the treating agent in the third step is a mixture of three components of ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA) and styrene-butadiene-styrene block copolymer (SBS), wherein the mass ratio is 1:3:3, a step of;
the mass ratio of the treating agent to the rice hull carbon powder in the third step is (0.09-0.27): 1, a step of;
step four, mixing the filler and PVC, extruding and granulating to obtain the rice hull-based silicon carbon black/PVC material, wherein the mass ratio of the filler to the PVC is (0.1-0.36): 1, wherein the processing temperature is 160-190 ℃ and the rotating speed is 15-35rpm.
2. A rice hull based silica carbon black/polyvinyl chloride composite according to claim 1 wherein: and in the third step, one or a mixture of two or more of a heat stabilizer, a lubricant, an antioxidant and a sedimentation agent is added.
3. A rice hull based silica carbon black/polyvinyl chloride composite according to claim 2 wherein: the lubricant is one or a mixture of two or more of stearic acid, butyl stearate, liquid paraffin, solid paraffin and polyethylene wax.
4. A rice hull based silica carbon black/polyvinyl chloride composite according to claim 2 wherein: the antioxidant is antioxidant 1010, antioxidant 168 or a mixture of antioxidant 1010 and antioxidant 168.
5. A rice hull based silica carbon black/polyvinyl chloride composite according to claim 2 wherein: the heat stabilizer comprises any one of a calcium-zinc stabilizer, a metal soap stabilizer and a lead salt stabilizer.
6. A rice hull based silica carbon black/polyvinyl chloride composite according to claim 2 wherein: one or more of the sedimentation agent AQ-633E, RHEOLATE299 and VEsmody U505.
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| CN202210130833.4A CN115160706B (en) | 2022-02-12 | 2022-02-12 | Rice hull-based silicon carbon black/polyvinyl chloride composite material |
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| Application Number | Priority Date | Filing Date | Title |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000191814A (en) * | 1998-12-24 | 2000-07-11 | Sanwa Kako Co Ltd | Charcoal-powder containing polyethylene based foam and its production |
| CN106220996A (en) * | 2016-07-28 | 2016-12-14 | 吉林大学 | The preparation method of silicon white carbon black/composite polyolefine material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10414880B2 (en) * | 2014-03-14 | 2019-09-17 | University Of Guelph | Renewable replacements for carbon black in composites and methods of making and using thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000191814A (en) * | 1998-12-24 | 2000-07-11 | Sanwa Kako Co Ltd | Charcoal-powder containing polyethylene based foam and its production |
| CN106220996A (en) * | 2016-07-28 | 2016-12-14 | 吉林大学 | The preparation method of silicon white carbon black/composite polyolefine material |
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