CN117645801A - Environment-friendly wood grain shaping process - Google Patents
Environment-friendly wood grain shaping process Download PDFInfo
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- CN117645801A CN117645801A CN202311644906.2A CN202311644906A CN117645801A CN 117645801 A CN117645801 A CN 117645801A CN 202311644906 A CN202311644906 A CN 202311644906A CN 117645801 A CN117645801 A CN 117645801A
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- 238000007493 shaping process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 32
- 238000000465 moulding Methods 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 25
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 18
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- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
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- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 5
- OSNILPMOSNGHLC-UHFFFAOYSA-N 1-[4-methoxy-3-(piperidin-1-ylmethyl)phenyl]ethanone Chemical compound COC1=CC=C(C(C)=O)C=C1CN1CCCCC1 OSNILPMOSNGHLC-UHFFFAOYSA-N 0.000 claims description 4
- CGLVZFOCZLHKOH-UHFFFAOYSA-N 8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo(3,2-b:3',2'-m)triphenodioxazine Chemical compound CCN1C2=CC=CC=C2C2=C1C=C1OC3=C(Cl)C4=NC(C=C5C6=CC=CC=C6N(C5=C5)CC)=C5OC4=C(Cl)C3=NC1=C2 CGLVZFOCZLHKOH-UHFFFAOYSA-N 0.000 claims description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- HBHZKFOUIUMKHV-UHFFFAOYSA-N chembl1982121 Chemical compound OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HBHZKFOUIUMKHV-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
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- 201000009240 nasopharyngitis Diseases 0.000 claims description 3
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 claims description 3
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- 229920003023 plastic Polymers 0.000 abstract description 17
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- 241000209094 Oryza Species 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 4
- 235000013539 calcium stearate Nutrition 0.000 description 4
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- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention relates to the technical field of wood plastic processing, and discloses an environment-friendly wood molding process, which comprises, by mass, 30-60 parts of fibers, 5-10 parts of stearic acid, 10-30 parts of polymers, 5-10 parts of fillers, 2-5 parts of pigments, 1-5 parts of dispersing agents and 1-5 parts of melt strength adjusting additives, wherein the fibers are organic fibers such as poplar, pine, rice hulls and straws, the fineness is about 100 meshes, the fibers can be used singly or in combination of two or more, and the stearic acid is preferably a primary product, and the content is 95% -100%. According to the environment-friendly wood granulation process, the standard mixing process and the addition of the melt dispensing auxiliary agent improve the fluidity of the system, reduce the moisture, reduce dust flying in the granulation process, ensure better compatibility among materials and improve the performance of the product.
Description
Technical Field
The invention relates to the technical field of wood-plastic processing, in particular to an environment-friendly wood molding process.
Background
The environment-friendly wood-plastic pelleting is a material prepared by mixing waste wood and plastic through a special processing technology, has the characteristics of environment friendliness, durability, strong plasticity and the like, is prepared by crushing, mixing and extrusion molding the waste wood and plastic in the preparation process of the environment-friendly wood-plastic pelleting, does not need extra adhesive or harmful substances, has no pollution to the environment, can replace traditional wood products, has better durability, is not easy to rot, deform or damage by insects, has better weather resistance and moisture resistance compared with the traditional wood products, can be used in humid and high-humidity environments, is not easy to expand and deform, can be used in outdoor places such as garden furniture, terrace floors, railings and the like, has the characteristic of strong plasticity, can be prepared into products with various shapes and specifications through different pelleting technologies and formulas, and meets different requirements and design requirements.
The filling content of the fiber in the wood-plastic formula is higher and is generally between 50 and 90 percent, the fiber is a material with stronger water absorption, the water content is generally about 15 percent or even higher, the high filling and high water absorption firstly affect the granulation process, dust flying and polluting the environment, and secondly the defects of affecting the production stability and quality of the wood-plastic product, such as foaming multiplying power, deformation of the product and weather resistance and other physical properties of the product, so that the formula system needs to maintain higher processing fluidity and control of water content, and the high-proportion fiber filling causes the melt strength to be too low, so that when the melt is insufficient to cover bubbles, the gas overflows and merges into large bubbles, the density of the product is increased, the product quality of the wood-plastic product is reduced, and the cost is increased.
Disclosure of Invention
The invention is provided in view of the problems that the existing environment-friendly wood molding process has too low melt strength due to high-proportion fiber filling, and when the melt is insufficient to cover bubbles, gas overflows and merges into large bubbles, so that the density of a product is increased, the quality of the wood-plastic product is reduced, and the cost is increased.
Therefore, the invention aims to provide an environment-friendly wood shaping process, which aims to: improves the fluidity of the system, reduces the water content, and reduces dust flying in the granulating process.
In order to solve the technical problems, the invention provides the following technical scheme: the environment-friendly wood molding process comprises, by mass, 30-60 parts of fibers, 5-10 parts of stearic acid, 10-30 parts of polymers, 5-10 parts of fillers, 2-5 parts of pigments, 1-5 parts of dispersing agents and 1-5 parts of melt strength adjusting additives.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the fibers are organic fibers such as poplar, pine, rice hulls and straws, the fineness of the fibers is about 100 meshes, and the fibers can be used singly or in combination of two or more.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the stearic acid is preferably a primary product, and the content of the stearic acid is 95-100%.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the polymer is polypropylene, TPE, TPU or polystyrene, and the polymer is used in combination of two or more.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the filler is talcum powder, light calcium, heavy calcium, aluminum silicate, aluminum hydroxide or kaolin, and the above fillers can be used singly or in combination of two or more.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the pigment is carbon black, sun-proof yellow, permanent yellow, iron oxide yellow, benzidine yellow G, tartrazine yellow, permanent orange, iron oxide red, permanent red, lithopone, brown soil, loess, permanent violet, ultramarine, diamond blue, phthalocyanine green, titanium dioxide and brocade white, and the pigment can be singly used or can be used in combination of two or more.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: the dispersing agent is ethylene bis-stearamide, zinc stearate and EVA3 wax, and the pigment dispersing agent can be used singly or in combination of two or more.
As a preferable scheme of the environment-friendly wood molding process, the invention comprises the following steps: 1-5 parts of melt strength regulating auxiliary agent is one or more of ABS, chlorinated polyethylene, polymethyl methacrylate and the like.
The invention also provides a preparation method of the environment-friendly wood molding process, which aims at: the compatibility between materials is better, and the performance of the product is improved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation method of the environment-friendly wood molding process comprises the following steps:
firstly, adding wood flour fibers and filler into a high-speed mixer, mixing at 600rpm to 100 ℃, adding a proper amount of coupling agent, continuously mixing to 110-115 ℃, turning off a frequency converter, and turning on the mixer for about 2-3 minutes;
adding resin PP, stabilizing agent and other processing aid, mixing to 100 deg.C, adding dispersant, mixing to 120-125 deg.C, unloading powder, and mixing with the next hand;
finally, the powder can be granulated and added into a double screw for production after being cooled to 40 ℃ in a cooling barrel, the powder is added into a conical double screw through a spiral feeder, granulation is carried out at about 180 ℃, the materials are ready for use, the observation temperature and time must be paid attention to during mixing, the temperature and time are about 20-25 minutes as those of a common cold pot for mixing the first hand material, and the temperature of a hot pot is about 12-15 minutes (the temperature is about 125 ℃).
The invention has the beneficial effects that: through the standard mixing process and the addition of melt dispensing auxiliary agent, the fluidity of the system is improved, the moisture is reduced, dust flying is less in the granulating process, the compatibility among materials is better, and the performance of the product is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic diagram of the process flow of the environment-friendly wood-molding process of the invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
The environment-friendly wood molding process comprises, by mass, 30-60 parts of fibers, 5-10 parts of stearic acid, 10-30 parts of polymers, 5-10 parts of fillers, 2-5 parts of pigments, 1-5 parts of dispersing agents and 1-5 parts of melt strength adjusting additives.
The fibers are organic fibers such as poplar, pine, rice husk and straw, the fineness is about 100 meshes, the fibers can be used singly or in combination, stearic acid is a primary product, the content of the stearic acid is preferably 95-100%, the polymers are polypropylene, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane) and polystyrene, the polymers are used in combination, the fillers are talcum powder, light calcium, heavy calcium, aluminum silicate, aluminum hydroxide or kaolin, and the fillers can be used singly or in combination;
the pigment is carbon black, sun-proof yellow, permanent yellow, iron oxide yellow, benzidine yellow G, tartrazine yellow, permanent orange, iron oxide red, permanent red, lithopone, brown soil, loess, permanent violet, ultramarine, diamond blue, phthalocyanine green, titanium dioxide and brocade white, and the pigment can be singly used or can be used in combination of two or more;
the dispersing agent is ethylene bis-stearamide, zinc stearate and EVA3 wax, the pigment dispersing agent can be singly used or two or more of the pigment dispersing agents can be combined for use, and 1-5 parts of the melt strength adjusting auxiliary agent is one or more of ABS, chlorinated polyethylene, polymethyl methacrylate and the like.
The preparation method of the environment-friendly wood molding process comprises the following steps,
s1, firstly, adding wood flour fibers and fillers into a high-speed mixer, mixing at the rotating speed of 600rpm to 100 ℃, adding a proper amount of coupling agent, continuously mixing to 110-115 ℃, turning off a frequency converter, and turning on the mixer for about 2-3 minutes;
s2, adding resin PP, a stabilizer and other processing aids, mixing to 100 ℃ and continuously adding a dispersing agent, continuously mixing a melt strength regulator to 120-125 ℃ and discharging powder, and mixing the next hand material after the powder is discharged;
s3, finally, the powder can be granulated and added into a double screw for production after being cooled to 40 ℃ in a cooling barrel, the powder is added into a conical double screw through a spiral feeder, granulation is carried out at about 180 ℃, the materials are ready for use, the observation temperature and time must be paid attention to during mixing, the temperature and time are about 20-25 minutes as those of a common cold pot for mixing the first hand of materials, and the temperature of a hot pot is about 12-15 minutes (the temperature is about 125 ℃).
Example 1
Referring to fig. 1, for the first embodiment of the present invention, an environment-friendly wood molding process is provided, which comprises, by mass, 50 parts of poplar wood powder, 8 parts of stearic acid, 5 parts of polypropylene, 20 parts of talcum powder, 5 parts of permanent yellow, 5 parts of zinc stearate and 3 parts of melt strength regulator ABS, mixing by the above-mentioned mixing process, discharging the powder to a cooling barrel for cooling, and finally adding into a conical twin screw for granulating, cooling and molding to obtain an environment-friendly wood-plastic material.
Example 2
Referring to fig. 1, a second embodiment of the present invention is shown, which is different from the first embodiment in that: the melt strength modifier comprises, by mass, 40 parts of poplar wood powder, 7 parts of stearic acid, 10 parts of polypropylene, 20 parts of light calcium, 2 parts of phthalocyanine blue, 2 parts of ethylene bis stearamide and 1 part of melt strength modifier ABS. Mixing materials through the mixing process, discharging powder to a cooling barrel for cooling, and finally adding the cooled powder into a conical double screw for granulating, cooling and forming to obtain the environment-friendly wood-plastic material.
Example 3
Referring to fig. 1, a third embodiment of the present invention is shown, which differs from the second embodiment in that: according to the mass portion, 40 portions of pine wood powder, 7 portions of stearic acid, 10 portions of TPE, 20 portions of heavy calcium, 1 portion of phthalocyanine blue, 2 portions of EVA3 wax and 3 portions of melt strength regulator chlorinated polyethylene are mixed by the mixing process, then the powder is discharged to a cooling barrel for cooling, and finally the mixture is added into a conical double screw for granulating, cooling and molding to obtain the environment-friendly wood plastic material.
Example 4
Referring to fig. 1, a fourth embodiment of the present invention is shown, which differs from the third embodiment in that:
according to the mass parts, 45 parts of pine wood powder, 7 parts of stearic acid, 10 parts of TPU, 30 parts of aluminum silicate, 4 parts of benzidine yellow G, 2 parts of calcium stearate and 5 parts of melt strength regulator chlorinated polyethylene are mixed by the mixing process, then the powder is discharged to a cooling barrel for cooling, and finally the mixture is added into a conical double screw for granulating, cooling and molding to obtain the environment-friendly wood plastic material.
Example 5
Referring to fig. 1, a fifth embodiment of the present invention is shown, which differs from the fourth embodiment in that:
55 parts of rice hull powder, 7 parts of stearic acid, 8 parts of TPU (thermoplastic polyurethane), 25 parts of kaolin, 3 parts of titanium dioxide, 2 parts of calcium stearate and 2 parts of chlorinated polyethylene as a melt strength regulator are mixed according to the mass parts, the mixture is discharged to a cooling barrel for cooling, and finally the mixture is added into a conical double screw for granulating, cooling and molding, so that the environment-friendly wood-plastic material is prepared.
Example 6
Referring to fig. 1, a sixth embodiment of the present invention is shown, which differs from the fifth embodiment in that:
60 parts of rice hull powder, 7 parts of stearic acid, 10 parts of TPU (thermoplastic polyurethane), 10 parts of kaolin, 2 parts of permanent violet, 2 parts of calcium stearate and 5 parts of melt strength regulator polymethyl methacrylate are mixed according to the mass parts, the mixture is discharged into a cooling barrel for cooling, and finally the mixture is added into a conical double screw for granulating, cooling and molding to obtain the environment-friendly wood-plastic material.
Example 7
Referring to fig. 1, a seventh embodiment of the present invention is a seventh embodiment, which is different from the sixth embodiment in that:
55 parts of rice hull powder, 7 parts of stearic acid, 15 parts of TPU, 20 parts of aluminum hydroxide, 2 parts of phthalocyanine blue, 2 parts of calcium stearate and 3 parts of melt strength regulator polymethyl methacrylate are mixed according to the mass parts, the mixture is discharged to a cooling barrel for cooling, and finally the mixture is added into a conical double screw for granulating, cooling and molding to obtain the environment-friendly wood-plastic material.
Through the experiment, the standard mixing process and the addition of the melt dispensing auxiliary agent can be obtained, the fluidity of the system is improved, the moisture is reduced, dust flying is less in the granulating process, the compatibility among materials is better, and the performance of the product is improved.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (9)
1. The environment-friendly wood molding process is characterized in that: the environment-friendly wood molding particle comprises, by mass, 30-60 parts of fibers, 5-10 parts of stearic acid, 10-30 parts of polymers, 5-10 parts of fillers, 2-5 parts of pigments, 1-5 parts of dispersing agents and 1-5 parts of melt strength adjusting additives.
2. The process for shaping and granulating environment-friendly wood according to claim 1, wherein: the fibers are organic fibers such as poplar, pine, rice hulls and straws, the fineness of the fibers is about 100 meshes, and the fibers can be used singly or in combination of two or more.
3. The process for shaping and granulating environment-friendly wood according to claim 2, wherein: the stearic acid is preferably a primary product, and the content of the stearic acid is 95-100%.
4. The process for shaping and granulating environment-friendly wood according to claim 3, wherein: the polymer is polypropylene, TPE, TPU or polystyrene, and the polymer is used in combination of two or more.
5. The process for shaping and granulating environment-friendly wood according to claim 4, wherein the process comprises the following steps: the filler is talcum powder, light calcium, heavy calcium, aluminum silicate, aluminum hydroxide or kaolin, and the above fillers can be used singly or in combination of two or more.
6. The process for shaping and granulating environment-friendly wood according to claim 5, wherein the process comprises the following steps: the pigment is carbon black, sun-proof yellow, permanent yellow, iron oxide yellow, benzidine yellow G, tartrazine yellow, permanent orange, iron oxide red, permanent red, lithopone, brown soil, loess, permanent violet, ultramarine, diamond blue, phthalocyanine green, titanium dioxide and brocade white, and the pigment can be singly used or can be used in combination of two or more.
7. The process for shaping and granulating environment-friendly wood according to claim 6, wherein the process comprises the following steps: the dispersing agent is ethylene bis-stearamide, zinc stearate and EVA3 wax, and the pigment dispersing agent can be used singly or in combination of two or more.
8. The process for shaping and granulating environment-friendly wood according to claim 7, wherein: 1-5 parts of melt strength regulating auxiliary agent is one or more of ABS, chlorinated polyethylene, polymethyl methacrylate and the like.
9. The method for preparing the environment-friendly wood molding process according to claim 8, wherein the method comprises the following steps:
firstly, adding wood flour fibers and filler into a high-speed mixer, mixing at 600rpm to 100 ℃, adding a proper amount of coupling agent, continuously mixing to 110-115 ℃, turning off a frequency converter, and turning on the mixer for about 2-3 minutes;
adding resin PP, stabilizing agent and other processing aid, mixing to 100 deg.C, adding dispersant, mixing to 120-125 deg.C, unloading powder, and mixing with the next hand;
finally, the powder can be granulated and added into a double screw for production after being cooled to 40 ℃ in a cooling barrel, the powder is added into a conical double screw through a spiral feeder, granulation is carried out at about 180 ℃, the materials are ready for use, the observation temperature and time must be paid attention to during mixing, the temperature and time are about 20-25 minutes as those of a common cold pot for mixing the first hand material, and the temperature of a hot pot is about 12-15 minutes (the temperature is about 125 ℃).
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| Application Number | Priority Date | Filing Date | Title |
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