CN113150450A - Recyclable nano-cellulose reinforced polypropylene material and preparation method and application thereof - Google Patents
Recyclable nano-cellulose reinforced polypropylene material and preparation method and application thereof Download PDFInfo
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- CN113150450A CN113150450A CN202110428663.3A CN202110428663A CN113150450A CN 113150450 A CN113150450 A CN 113150450A CN 202110428663 A CN202110428663 A CN 202110428663A CN 113150450 A CN113150450 A CN 113150450A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a recyclable nano-cellulose reinforced polypropylene material as well as a preparation method and application thereof, belonging to the technical field of materials. The green low-carbon recyclable injection molding grade nano plant cellulose polypropylene automotive interior material provided by the invention comprises the following raw materials in percentage by mass: 49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 0.5-1.5 parts of processing aid and 1.5-3 parts of polypropylene maleic anhydride graft. The components are matched, the obtained material has higher rigidity and low density performance, can replace the traditional PP + EPDM-TD20 material to be used as an automobile interior material, and has more excellent performance and lower carbon emission value compared with the existing material.
Description
Technical Field
The invention relates to the technical field of materials, in particular to a nano-cellulose reinforced polypropylene material and a preparation method and application thereof.
Background
The PP + EPDM-TD20 material is a thermoplastic high-molecular structure material with high strength, good toughness and easy processing and forming, and is widely applied to the fields of automobiles, electronic appliances and DIY manufacturing. However, the PP + EPDM-TD20 material has a high specific gravity and a high linear expansion coefficient, and particularly when recycled, molecular chains are broken during recycling, so that the properties such as impact resistance and rigidity of the whole material are remarkably reduced after recycling, and the material cannot be recycled.
As a common high polymer material, polypropylene is a semi-crystalline thermoplastic plastic, has high impact resistance, excellent mechanical properties, organic solvent corrosion resistance and acid and alkali resistance, has lower density than PP + EPDM-TD20, but has poor rigidity, cannot meet the requirements of high impact resistance and high rigidity of the material, and can not replace products in the prior art.
Disclosure of Invention
The invention aims to provide a nano-cellulose reinforced polypropylene material, and a preparation method and application thereof, and solves the technical problems that the material in the prior art cannot be recycled, and has insufficient rigidity and overhigh weight.
In order to achieve the above object, an aspect of the embodiments of the present invention provides a nanocellulose reinforced polypropylene material, including the following raw materials in parts by weight: 49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid; the processing aid is at least one of an antioxidant, a lubricating dispersant or a nucleating agent.
Further, the melt index of the co-polypropylene is 90-104g/10min, and the normal-temperature impact strength is more than 4kJ/m2。
Further, the melt index of the ethylene-octene copolymer elastomer is 3-5 g/10 min.
Further, the graft ratio of the polypropylene maleic anhydride graft was 0.1%.
Further, the antioxidant is antioxidant 1010 and/or antioxidant 168; the lubricating dispersant comprises calcium stearate and/or polyethylene wax; nucleating agents include Millad NX 8000K.
Another aspect of the present invention provides a method for preparing a recyclable nanocellulose-reinforced polypropylene material, comprising the steps of:
49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid are mixed, and then melt extrusion and granulation are carried out to obtain the recyclable nano cellulose reinforced polypropylene material.
Further, the mixing is dry mixing, the mixing speed of the dry mixing is 400-600 rpm, and the dry mixing time is 5-10 min.
Further, the melt extrusion process is divided into eleven working temperature zones, specifically: the temperature of the first zone is 100-110 ℃, the temperature of the second zone is 110-120 ℃, the temperature of the third zone is 130-140 ℃, the temperature of the fourth zone is 140-150 ℃, the temperature of the fifth zone is 160-170 ℃, the temperature of the sixth zone is 160-170 ℃, the temperature of the seventh zone is 170-175 ℃, the temperature of the eighth zone is 170-175 ℃, the temperature of the ninth zone is 170-175 ℃, the temperature of the tenth zone is 170-175 ℃, and the temperature of the nose zone is 170-180 ℃; the rotating speed of the screw in the melt extrusion process is 300-450 rpm.
An application of a recyclable nano-cellulose reinforced polypropylene material in preparing an automotive interior material.
Compared with the prior art, the invention has the beneficial effects that: the fluidity, namely the melt index, of the product is improved by the co-polypropylene, the bending strength and the bending modulus of the product are improved by the nano plant cellulose, the processing temperature of the product is lower by the synergistic effect of the co-polypropylene and the nano plant cellulose, the internal structure of the product is formed into a honeycomb shape, and the problem that the performance of the material is reduced because molecular chains are easy to break when the material in the prior art is recycled is effectively avoided; the material has more stable integral structure, smaller density, better heat resistance, smaller high linear expansion coefficient and better material dispersibility, can obviously improve the rigidity and toughness of other materials in the prior art by combining with other materials, can realize recycling and reduce the carbon emission of the material while replacing the traditional PP + EPDM-TD20 material.
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 some, but not all, embodiments of the present invention. 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.
The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first parameter set and the second parameter set, etc. are used to distinguish different parameter sets, rather than to describe a particular order of parameter sets.
In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of elements refers to two elements or more.
The term "and/or" herein is an association relationship describing an associated object, and means that there may be three relationships, for example, a display panel and/or a backlight, which may mean: there are three cases of a display panel alone, a display panel and a backlight at the same time, and a backlight alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, input/output denotes input or output.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The invention provides a nano-cellulose reinforced polypropylene material which comprises the following raw materials in parts by weight: 49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid; the processing aid is at least one of an antioxidant, a lubricating dispersant or a nucleating agent. The fluidity, namely the melt index, of the product is improved by the polypropylene copolymer, the bending strength and the bending modulus of the product are improved by the nano plant cellulose, and the dispersibility of the product is further improved by the polypropylene maleic anhydride graft. Therefore, the technical problems that the material in the prior art cannot meet the requirement of high bending strength under the condition of high impact strength, molecular chains are easy to break and cannot be recycled when the material is recycled, and the material cannot be applied to the field with high requirements on rigidity and impact resistance are effectively solved.
The fluidity, namely the melt index, of the product is improved by the polypropylene copolymer, and simultaneously, the bending strength and the bending modulus of the product are improved by the use of the nano plant cellulose and the synergistic effect of the nano plant cellulose and the polypropylene maleic anhydride graft, so that the processing temperature and the melting point of the product are lower, the internal structure of the product is formed into a honeycomb shape, and the problem that the material performance is reduced because molecular chains are easy to break when the material in the prior art is recycled is effectively avoided; the material has more stable integral structure, lower density, better heat resistance, smaller high linear expansion coefficient and better material dispersibility, can obviously improve the rigidity and toughness of other materials in the prior art by combining with other materials, and can realize recycling while replacing the traditional PP + EPDM-TD20 material.
In the present invention, the melt index is measured under the test condition of 230 ℃/2.16 kg.
In the present invention, the copolymerized polypropylene is preferably copolymerized polypropylene; the melt index of the copolymerized polypropylene is preferably 90-104g/10min, and more preferably 102g/10 min; the impact strength at normal temperature is preferably 4kJ/m2Above, more preferably 4.8kJ/m2Above (Zhonghai shell brand EP 640V). In the present invention, the copolymerized polypropylene may improve the melt index of the product.
In the invention, the nano plant cellulose is used for improving the bending strength and the bending modulus of a product, and simultaneously, the dimensional stability of the product can be improved, namely, the high linear expansion coefficient of the polypropylene material is reduced, the material density is reduced, the product has excellent heat resistance, the product has good dispersibility in a high polymer material, and the product can be mixed with other components to increase the rigidity of the material.
In the present invention, the ethylene-octene copolymer elastomer preferably has a melt index of 3 to 5g/10min, more preferably 4g/10min (LG LC 565). In the present invention, the ethylene-propylene copolymer elastomer can improve the impact strength of the polypropylene material.
In the invention, the polypropylene maleic anhydride graft is preferably Nicotiana tabacum 200A, the polypropylene maleic anhydride graft can better improve the dispersing ability of the polypropylene material and the plant cellulose, and the components are matched with each other.
In the present invention, the processing aid includes at least one of an antioxidant, a lubricating dispersant and a nucleating agent; the antioxidant comprises an antioxidant 1010 and/or an antioxidant 168, the lubricating dispersant comprises calcium stearate and/or polyethylene wax, the nucleating agent comprises Millad NX8000K, and the nucleating agent preferably comprises a transparent nucleating agent, and particularly preferably a Milliken nucleating agent NX 8000. In the invention, the nucleating agent can change the crystallization behavior of the resin, accelerate the crystallization rate, increase the crystallization density and promote the grain size to be micronized, thereby achieving the purposes of shortening the molding period and improving the physical and mechanical properties of the material, such as transparency, surface gloss, tensile strength, rigidity, heat distortion temperature, impact resistance, creep resistance, flexural modulus and the like.
In another aspect of the embodiments of the present invention, a method for preparing a recyclable nanocellulose-reinforced polypropylene material is provided, which includes the following steps:
49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid are mixed, and then melt extrusion and granulation are carried out to obtain the recyclable nano cellulose reinforced polypropylene material.
The preparation method provided by the invention is simple in process and suitable for industrial application.
In the invention, the mixing is preferably dry mixing, the mixing speed of the dry mixing is preferably 400-600 rpm, and the time for the dry mixing is preferably 5-10 min. In the present embodiment, the mixing is preferably carried out in a high speed mixer, preferably a vertical agitation type mixer.
In the present invention, the melt extrusion process is preferably divided into eleven working temperature zones, specifically: the temperature of the first zone is 100-110 ℃, the temperature of the second zone is 110-120 ℃, the temperature of the third zone is 130-140 ℃, the temperature of the fourth zone is 140-150 ℃, the temperature of the fifth zone is 160-170 ℃, the temperature of the sixth zone is 160-170 ℃, the temperature of the seventh zone is 170-175 ℃, the temperature of the eighth zone is 170-175 ℃, the temperature of the ninth zone is 170-175 ℃, the temperature of the tenth zone is 170-175 ℃, and the temperature of the nose zone is 170-180 ℃; the rotating speed of a screw in the melt extrusion process is 300-450 rpm, and the yield of the melt extrusion is preferably 20-200 kg/h.
In the present invention, the melt extrusion is preferably carried out on a twin-screw melt extruder.
After granulation, the present invention preferably further comprises drying. In the invention, the drying temperature is preferably 80-90 ℃, and the drying time is preferably 2-3 h.
An application of a recyclable nano-cellulose reinforced polypropylene material in preparing an automotive interior material.
The recyclable nanocellulose-reinforced polypropylene material provided by the present invention, the preparation method and the application thereof are described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
In exemplary embodiments, the raw materials are:
copolymerized polypropylene: the test condition is 230 ℃/2.16kg, the melt flow rate of the polypropylene copolymer is 102g/10min, and the normal-temperature impact strength is 4.8kJ/m2；
Ethylene-propylene copolymer elastomer (LC 565): the melt index is 4g/10 min;
nano plant cellulose;
polypropylene maleic anhydride graft (200A);
antioxidant 1010, antioxidant 168, nucleating agent (i.e., NX 8000);
example 1, the nanocellulose-reinforced polypropylene material comprises the following raw materials by weight: 49.5kg of copolymerized polypropylene, 15kg of nano plant cellulose, 10kg of ethylene-octene copolymer elastomer, 1.5kg of polypropylene maleic anhydride graft, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent.
Stirring the weighed raw materials in a vertical stirring high-speed mixer at the rotating speed of 600rpm for 10min, and then conveying the raw materials to a double-screw extruder for melt extrusion, granulation and drying to obtain green low-carbon recyclable injection molding grade nano plant cellulose reinforced polypropylene; the temperature of each temperature zone of the extruder is as follows: the first zone is 100 ℃, the second zone is 110 ℃, the third zone is 130 ℃, the fourth zone is 140 ℃, the fifth zone is 160 ℃, the sixth zone is 165 ℃, the seventh zone is 170 ℃, the eighth zone is 170 ℃, the ninth zone is 175 ℃, the tenth zone is 170 ℃ and the head zone is 180 ℃; the screw speed during melt extrusion was 450rpm, and the melt extrusion throughput was 25 kg/h.
Example 2, which is a preferred example of the present invention, the nanocellulose-reinforced polypropylene material comprises the following raw materials by weight: 51.5kg of copolymerized polypropylene, 30kg of nano plant cellulose, 15kg of ethylene-propylene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent.
The green low-carbon recyclable injection molding grade nano plant cellulose reinforced polypropylene automotive interior material is prepared according to the method of the embodiment 1.
Example 3, the raw materials used in example 1 were weighed as follows: 53.5kg of copolymerized polypropylene, 15kg of nano plant cellulose, 10kg of ethylene-octene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 10100.2 kg of antioxidant, 1680.5 kg of antioxidant and 0.5kg of nucleating agent;
the green low-carbon recyclable injection molding grade nano plant cellulose reinforced polypropylene automotive interior material is prepared according to the method of the embodiment 1.
Example 4
The raw materials in example 1 are adopted and weighed according to the following mass percentages: 54.2kg of copolymerized polypropylene, 35kg of nano plant cellulose, 12kg of ethylene-octene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 10100.5 kg of antioxidant, 1680.5 kg of antioxidant and 0.5kg of nucleating agent.
Example 5
The raw materials in example 1 are adopted and weighed according to the following mass percentages: 73.5kg of copolymerized polypropylene, 35kg of nano plant cellulose, 15kg of ethylene-octene copolymer elastomer, 3kg of polypropylene maleic anhydride graft and 1.5kg of nucleating agent.
The recyclable nanocellulose-reinforced polypropylene material was applied to the preparation of automotive interior materials according to the method of example 1.
Comparative example 1, no ethylene-octene copolymer elastomer was added.
The raw materials in example 1 are adopted and weighed according to the following mass percentages: 66.1kg of polypropylene copolymer, 33.3kg of nano plant cellulose, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent.
Comparative example 2, automotive interior material of the prior art.
The raw materials in the embodiment 1 are adopted to prepare the green low-carbon recyclable injection molding grade nano plant cellulose reinforced polypropylene automotive interior material according to the method in the embodiment 1, and the raw materials are weighed according to the following mass percentage: 65.5kg of polypropylene copolymer, 22kg of 3000-mesh talcum powder, 12kg of ethylene-octene copolymer elastomer, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent.
The green low-carbon recyclable injection molding grade nano plant cellulose reinforced polypropylene automotive interior material is prepared according to the method of the embodiment 1.
Comparative example 3
Modified PP + EPDM-TD20 material from a company.
Comparative example 4
Weighing the following raw materials in percentage by mass: 51.5kg of polypropylene copolymer, 30kg of glass fiber, 15kg of ethylene-octene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent;
comparative example 5
Weighing the following raw materials in percentage by mass: 50.5kg of polypropylene copolymer, 30kg of nano plant cellulose, 16kg of ethylene-octene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 10100.2 kg of antioxidant, 1680.1 kg of antioxidant and 0.2kg of nucleating agent.
The test results are shown in table 1:
TABLE 1 Performance test results of the products obtained in examples 1 to 5 and comparative examples 1 to 5
As can be seen from the descriptions in table 1, the nanocellulose-reinforced polypropylene materials provided in examples 1 to 5 have the minimum flexural strength of 36.2, the minimum melt index of 21, the maximum density of 0.990, and the minimum flexural modulus of 1680, and have significant unexpected technical effects compared with comparative examples 1 to 5 in terms of overall performance, and the flexural strength is ensured while the high index requirements of the impact strength and the melt index are ensured; although comparative example 1 has higher and better bending strength, the impact strength is poorer, and the requirement cannot be met; comparative example 2 has a better melt index and impact strength, but a poorer flexural strength; comparative example 4 using glass fiber, while the flexural strength obtained a greater test result, and the flexural modulus was also greater, the impact strength and melt index were inferior and not satisfactory for the application; in addition, after test detection, the performance of the whole material is optimal when the weight percentage of the ethylene-octene copolymer elastomer added in the whole material reaches 15%, when the weight percentage exceeds 15%, although the impact strength is improved, the flexural modulus is instantly reduced, so that the material cannot meet the application, and when the addition proportion is lower than 10%, the impact strength is lower, and the application requirement cannot be met; the comparative example 3 is the existing modified PP + EPDM-TD20 material, although the material has better melt index, and also has excellent impact strength and bending strength, the density is relatively larger, compared with the material of the technical scheme of the application, the material has smaller density, higher melt index, and more excellent indexes of impact strength, bending strength and bending modulus. In addition, through repeated cycle tests, the materials in the embodiments 1 to 5 can be recycled, the performance reduction after each recycling is less than 3 percent, and the equivalent materials in the prior art are basically more than 3 percent.
Meanwhile, in addition to lower density and excellent impact strength and bending strength, the material also has excellent performance of low carbon emission, as shown in table 2;
carbon emission data for fillers of nanocellulose-reinforced PP and glass fiber-reinforced PP (values based on industry data)
| Fraction of filler | 0 | 10 | 20 | 30 | 40 | 50 |
| SPP emission [ kg CO2-eq/t] | 1981 | 1832 | 1683 | 1534 | 1385 | 1236 |
| PPGF discharge amount (kg CO 2-eq/t)] | 1981 | 2045 | 2109 | 2173 | 2237 | 2301 |
As can be seen from Table 2, the nano plant cellulose filling adopted in the application has obviously lower carbon emission compared with the glass cellulose filling, and simultaneously, the performances of all aspects are more excellent, so that the carbon emission of the nano cellulose reinforced polypropylene material is lower.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A recyclable nanocellulose-reinforced polypropylene material is characterized in that: the feed comprises the following raw materials in parts by weight: 49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid; the processing aid is at least one of an antioxidant, a lubricating dispersant or a nucleating agent.
2. The recyclable nanocellulose-reinforced polypropylene material of claim 1, wherein: the melt index of the polypropylene copolymer is 90-104g/10min, and the impact strength at normal temperature is more than 4kJ/m2。
3. The recyclable nanocellulose-reinforced polypropylene material of claim 2, wherein: the melt index of the ethylene-octene copolymer elastomer is 3-5 g/10 min.
4. The recyclable nanocellulose-reinforced polypropylene material of claim 3, wherein: the grafting ratio of the polypropylene maleic anhydride graft was 0.1%.
5. The recyclable nanocellulose-reinforced polypropylene material of claim 1, wherein: the antioxidant is antioxidant 1010 and/or antioxidant 168; the lubricating dispersant comprises calcium stearate and/or polyethylene wax; nucleating agents include Millad NX 8000K.
6. A method for preparing the recyclable nanocellulose-reinforced polypropylene material as described in any one of claims 1 to 5, comprising the steps of:
49.5-73.5 parts of co-polypropylene, 15-35 parts of nano plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid are mixed, and then melt extrusion and granulation are carried out to obtain the recyclable nano cellulose reinforced polypropylene material.
7. The method of claim 6, wherein: the mixing is dry mixing, the mixing speed of the dry mixing is 400-600 rpm, and the dry mixing time is 5-10 min.
8. The method according to claim 7, wherein the melt extrusion process is divided into eleven working temperature zones, in particular: the temperature of the first zone is 100-110 ℃, the temperature of the second zone is 110-120 ℃, the temperature of the third zone is 130-140 ℃, the temperature of the fourth zone is 140-150 ℃, the temperature of the fifth zone is 160-170 ℃, the temperature of the sixth zone is 160-170 ℃, the temperature of the seventh zone is 170-175 ℃, the temperature of the eighth zone is 170-175 ℃, the temperature of the ninth zone is 170-175 ℃, the temperature of the tenth zone is 170-175 ℃, and the temperature of the nose zone is 170-180 ℃; the rotating speed of the screw in the melt extrusion process is 300-450 rpm.
9. Use of the recyclable nanocellulose-reinforced polypropylene material as described in any one of claims 1 to 5 or the recyclable nanocellulose-reinforced polypropylene material obtained by the method for producing a recyclable nanocellulose-reinforced polypropylene material as described in any one of claims 6 to 8 for producing an interior material of an automobile.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114736455A (en) * | 2022-03-24 | 2022-07-12 | 金发科技股份有限公司 | Nano-cellulose reinforced PP composite material and preparation method and application thereof |
| CN115418055A (en) * | 2022-10-17 | 2022-12-02 | 北京天罡助剂有限责任公司 | High-fluidity polypropylene plastic and preparation method thereof |
| CN115716961A (en) * | 2022-11-30 | 2023-02-28 | 金发科技股份有限公司 | Polypropylene composition and preparation method thereof |
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| CN112457585A (en) * | 2020-12-09 | 2021-03-09 | 金发科技股份有限公司 | Polypropylene composition and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114736455A (en) * | 2022-03-24 | 2022-07-12 | 金发科技股份有限公司 | Nano-cellulose reinforced PP composite material and preparation method and application thereof |
| CN115418055A (en) * | 2022-10-17 | 2022-12-02 | 北京天罡助剂有限责任公司 | High-fluidity polypropylene plastic and preparation method thereof |
| CN115716961A (en) * | 2022-11-30 | 2023-02-28 | 金发科技股份有限公司 | Polypropylene composition and preparation method thereof |
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