CN108892963A - Plant fiber and polypropylene plastics composite material and preparation method and application - Google Patents
Plant fiber and polypropylene plastics composite material and preparation method and application Download PDFInfo
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- CN108892963A CN108892963A CN201810576776.6A CN201810576776A CN108892963A CN 108892963 A CN108892963 A CN 108892963A CN 201810576776 A CN201810576776 A CN 201810576776A CN 108892963 A CN108892963 A CN 108892963A
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08L23/12—Polypropene
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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
- C08L2201/06—Biodegradable
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- 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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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Abstract
The present invention relates to a kind of plant fiber and polypropylene plastics composite material and preparation method and application, the raw material components of composite material by weight, including：30~40 parts by weight of polypropylene, 40~50 parts by weight of Wormwood fiber, 5~10 parts by weight of glass fibre, 2~4 parts by weight of antioxidant, 5~10 parts by weight of toughener, 1~2 parts by weight of 2~4 parts by weight of lubricant, 2~4 parts by weight of compatilizer and dispersing agent；Preparation method includes step：All raw material components are mixed in proportion, are then granulated using double screw extruder, is injection moulded after dry, obtains composite material.Plant fiber provided by the invention and polypropylene plastics composite material, good mechanical performance, tensile strength and impact strength are high, it is nontoxic, and discarded composite material can be with Partial digestion, to environment without any harm, it can be used for preparing daily necessities, such as comb and mugwort moxacautery device.
Description
Technical field
The present invention relates to field of material technology, and in particular to a kind of plant fiber and polypropylene plastics composite material and its system
Preparation Method and application.
Background technique
Plant fiber is to be widely distributed in one of seed plant sclerenchyma.Its cell is elongated, and both ends are sharp, tool
There is thicker secondary wall, often there is simple pit on wall, the protoplast of typically no work when mature；Plant fiber is main in plant
Play mechanical supporting function.Polypropylene (PP) is a kind of hemicrystalline thermoplastic, impact resistance with higher, mechanicalness
Matter is tough, resists a variety of organic solvents and acid and alkali corrosion.In recent years, exploitation plant fiber is more next as the composite material of reinforcing material
It more attracts much attention, but existing composite material, often in the presence of being harmful to the human body, environmental pollution is bigger, poor mechanical property
The disadvantages of, therefore, it is also desirable to novel plant-fiber product be developed, to meet the market demand.
Summary of the invention
For the defects in the prior art, it is an object of that present invention to provide a kind of plant fibers and polypropylene plastics composite wood
Material and the preparation method and application thereof, environment-friendly composite material is prepared using natural plant fibre, good mechanical performance is stretched
Intensity and impact strength are high, nontoxic, and discarded composite material can to environment without any harm with Partial digestion
To be used to prepare daily necessities etc..
To achieve the above object, technical solution provided by the invention is：
The present invention provides a kind of composite material, the raw material components of composite material by weight, including：Polypropylene 30~
5~10 parts by weight of 40 parts by weight, 40~50 parts by weight of Wormwood fiber and glass fibre.
Preferably, the raw material components of composite material further include：2~4 parts by weight of antioxidant, 5~10 parts by weight of toughener, profit
1~2 parts by weight of 2~4 parts by weight of lubrication prescription, 2~4 parts by weight of compatilizer and dispersing agent.It should be noted that antioxidant is preferably anti-
Oxygen agent 1010.
Preferably, in the raw material components of composite material, Wormwood fiber is surface treated Wormwood fiber, surface treatment
It successively include alkali process and coupling agent treatment.
Preferably, alkali process specifically includes step：Wormwood fiber by grain diameter no more than 0.180mm is immersed in hydrogen-oxygen
Change in sodium solution, rinses after immersion to neutrality, then dry.
Preferably, in alkali process, the mass fraction of sodium hydroxide is 4%~6% in sodium hydroxide solution, the time of immersion
For 42~54h.
Preferably, coupling agent treatment specifically includes step：Coupling agent solution is sprayed into the Wormwood fiber after alkali process,
The Wormwood fiber after alkali process is sufficiently infiltrated to coupling agent solution, is then dried.
Preferably, in coupling agent treatment, coupling agent solution is mixed using silane coupling agent and ethyl alcohol, silane coupled
The volume ratio of agent and ethyl alcohol is 1:(4~6)；Silane coupling agent is KH550 silane coupling agent；It is fine to the wormwood after alkali process
It is lasting to stir during spraying coupling agent solution in dimension；Dry temperature is 100~110 DEG C.
The present invention also provides a kind of preparation methods of composite material, including step：All raw material components are mixed in proportion
It closes uniformly, obtains mixed raw material components；Mixed raw material components are granulated using double screw extruder, obtain raw material grain
Son；It will be injection moulded after raw particles drying, obtain composite material.
It preferably, is that mixed raw material components are successively transported to the 5th from the firstth area using double screw extruder granulation
Area obtains raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, 165 DEG C of the secondth area, third area 175
DEG C, 180 DEG C of the 4th area, 190 DEG C of the 5th area.
The present invention also protects composite material preparing the application in daily necessities, including comb and moxibustion device tool (such as mixibustion pot)
Deng.It should be noted that composite material is applied to other technologies field, it also should be within the scope of the present invention.
Technical solution provided by the invention has following beneficial effect：(1) present invention is this using natural plant fibre
The fiber environmental material that the huge reproducibility boiomacromolecule raw material of yield are prepared on the earth, good mechanical performance,
Tensile strength and impact strength are high, nontoxic, and discarded composite material can be with Partial digestion, to environment without any danger
Evil；(2) composite material that the present invention is prepared can be used for preparing daily necessities, including comb and moxibustion device tool (such as mixibustion pot)
Deng composite material provided by the invention is significant in terms of environmental protection and protection of resources；(3) preparation provided by the invention
Method is simple, and production cost is low, has good commercial promise.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the flow diagram of the preparation method of composite material provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.The following examples are only intended to illustrate the technical solution of the present invention more clearly, therefore is intended only as example, without
It can be limited the scope of the invention with this.
Experimental method in following embodiments is unless otherwise specified conventional method.Examination as used in the following examples
Material is tested, is to be commercially available from regular shops unless otherwise specified.Quantitative test in following embodiment, is respectively provided with three
Secondary to repeat to test, data are the average value or mean+SD of three repeated experiments.
The present invention provides a kind of composite material, raw material components by weight, including：30~40 parts by weight of polypropylene, Chinese mugwort
40~50 parts by weight of grass fiber, 5~10 parts by weight of glass fibre, 2~4 parts by weight of antioxidant 1010,5~10 weight of toughener
Part, 1~2 parts by weight of 2~4 parts by weight of lubricant, 2~4 parts by weight of compatilizer and dispersing agent；
In addition, as shown in Figure 1, including the following steps the present invention also provides the preparation method of composite material：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is immersed in the sodium hydroxide solution that mass fraction is 4%~6%, is impregnated
It rinses after 42~54h to neutrality, then dries；Wormwood fiber after drying is put into mixed at high speed blender, stirs one on one side
Side sprays into coupling agent solution, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 100~110 DEG C of dryings；
Wherein, coupling agent solution is to use KH550 silane coupling agent and ethyl alcohol with 1:The volume ratio of (4~6) mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
Technical solution provided by the invention is described further combined with specific embodiments below.
Embodiment one
The present embodiment provides a kind of composite material, raw material components by weight, including：35 parts by weight of polypropylene, wormwood
45 parts by weight of fiber, 7 parts by weight of glass fibre, 3 parts by weight of antioxidant 1010,7 parts by weight of toughener, 3 parts by weight of lubricant,
1.5 parts by weight of 3 parts by weight of compatilizer and dispersing agent；
Composite material is prepared using preparation method provided by the invention by above-mentioned raw material：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is immersed in the sodium hydroxide solution that mass fraction is 5%, after impregnating 48h
It rinses to neutrality, then dries；Wormwood fiber after drying is put into mixed at high speed blender, coupling is sprayed into while stirring
Agent solution, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 105 DEG C of dryings；Wherein, coupling agent solution
It is to use KH550 silane coupling agent and ethyl alcohol with 1:5 volume ratio mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
Embodiment two
The present embodiment provides a kind of composite material, raw material components by weight, including：30 parts by weight of polypropylene, wormwood
50 parts by weight of fiber, 5 parts by weight of glass fibre, 2 parts by weight of antioxidant 1010,10 parts by weight of toughener, 2 parts by weight of lubricant,
1 parts by weight of 4 parts by weight of compatilizer and dispersing agent；
Composite material is prepared using preparation method provided by the invention by above-mentioned raw material：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is immersed in the sodium hydroxide solution that mass fraction is 4%, after impregnating 42h
It rinses to neutrality, then dries；Wormwood fiber after drying is put into mixed at high speed blender, coupling is sprayed into while stirring
Agent solution, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 100 DEG C of dryings；Wherein, coupling agent solution
It is to use KH550 silane coupling agent and ethyl alcohol with 1:4 volume ratio mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
Embodiment three
The present embodiment provides a kind of composite material, raw material components by weight, including：40 parts by weight of polypropylene, wormwood
40 parts by weight of fiber, 10 parts by weight of glass fibre, 4 parts by weight of antioxidant 1010,5 parts by weight of toughener, 4 parts by weight of lubricant,
2 parts by weight of 2 parts by weight of compatilizer and dispersing agent；
Composite material is prepared using preparation method provided by the invention by above-mentioned raw material：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is immersed in the sodium hydroxide solution that mass fraction is 6%, after impregnating 54h
It rinses to neutrality, then dries；Wormwood fiber after drying is put into mixed at high speed blender, coupling is sprayed into while stirring
Agent solution, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 110 DEG C of dryings；Wherein, coupling agent solution
It is to use KH550 silane coupling agent and ethyl alcohol with 1:6 volume ratio mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
Comparative example one
This comparative example provides a kind of composite material, raw material components by weight, including：35 parts by weight of polypropylene, wormwood
10 parts by weight of fiber, 7 parts by weight of glass fibre, 3 parts by weight of antioxidant 1010,7 parts by weight of toughener, 3 parts by weight of lubricant,
1.5 parts by weight of 3 parts by weight of compatilizer and dispersing agent；
By above-mentioned raw material, composite material is prepared：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is immersed in the sodium hydroxide solution that mass fraction is 5%, after impregnating 48h
It rinses to neutrality, then dries；Wormwood fiber after drying is put into mixed at high speed blender, coupling is sprayed into while stirring
Agent solution, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 105 DEG C of dryings；Wherein, coupling agent solution
It is to use KH550 silane coupling agent and ethyl alcohol with 1:5 volume ratio mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
Comparative example two
This comparative example provides a kind of composite material, raw material components by weight, including：35 parts by weight of polypropylene, wormwood
45 parts by weight of fiber, 7 parts by weight of glass fibre, 3 parts by weight of antioxidant 1010,7 parts by weight of toughener, 3 parts by weight of lubricant,
1.5 parts by weight of 3 parts by weight of compatilizer and dispersing agent；
By above-mentioned raw material, composite material is prepared：
It smashes after Wormwood fiber is dried, is then sieved, obtain the Wormwood fiber that grain diameter is no more than 0.180mm；It will
Wormwood fiber of the grain diameter no more than 0.180mm is put into mixed at high speed blender, and it is molten to spray into coupling agent while stirring
Liquid, until coupling agent solution will take out after the full and uniform infiltration of Wormwood fiber, then 105 DEG C of dryings；Wherein, coupling agent solution is to adopt
With KH550 silane coupling agent and ethyl alcohol with 1:5 volume ratio mixes；
Will treated Wormwood fiber mixed at high speed is uniform in proportion with other raw material components, obtain mixed raw material group
Point；
By mixed raw material components using double screw extruder be granulated, i.e., by mixed raw material components from the firstth area according to
It is secondary to be transported to the 5th area, obtain raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, the second area 165
DEG C, 175 DEG C of third area, 180 DEG C of the 4th area, 190 DEG C of the 5th area；
It will be injection moulded after raw particles drying, obtain composite material.
The composite material that the embodiment of the present invention one to embodiment three, comparative example one and comparative example two are prepared carries out
The result of the measurement of tensile strength, impact strength and elongation at break, measurement is as shown in table 1 below, wherein embodiment two is implemented
The test result of example three, comparative example one and comparative example two is using the result that embodiment one measures as reference.
1 test result of table
| Group | Tensile strength | Impact strength | Elongation at break |
| Embodiment one | - | - | - |
| Embodiment two | 98.9% | 99.2% | 99.5% |
| Embodiment three | 99.4% | 99.8% | 100.2% |
| Comparative example one | 84.3% | 72.5% | 85.6% |
| Comparative example two | 72.3% | 95.2% | 71.9% |
Applicant is dedicated to the key technology of biomass new material and the engineering chemistry database of common technology, with biomaterial
Composite modification technology, using agriculture regenerated resources as primary raw material, with cellulose, starch, stalk, the natural polymers material such as lignin
Material produces biodegradable plastic, by constantly innovating test, completes grinding for natural plant fibre environment-friendly materials technology finally
Hair.The present invention is prepared using the huge reproducibility boiomacromolecule raw material of yield on this earth of natural plant fibre
Fiber environmental material, can be used for preparing daily necessities, including comb and moxibustion device tool (such as mixibustion pot), it is provided by the invention
Composite material is significant in terms of environmental protection and protection of resources.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.Unless specifically stated otherwise, it otherwise illustrates in these embodiments
Component and opposite step, numerical expression and the numerical value of step are not limit the scope of the invention.It is illustrated and described herein
In all examples, unless otherwise prescribed, any occurrence should be construed as merely illustratively, not as limitation, because
This, other examples of exemplary embodiment can have different values.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in protection scope of the present invention.
Claims (10)
1. a kind of composite material, which is characterized in that the raw material components of the composite material by weight, including：
5~10 parts by weight of 30~40 parts by weight of polypropylene, 40~50 parts by weight of Wormwood fiber and glass fibre.
2. composite material according to claim 1, which is characterized in that the raw material components of the composite material further include：
2~4 parts by weight of antioxidant, 5~10 parts by weight of toughener, 2~4 parts by weight of lubricant, 2~4 parts by weight of compatilizer and point
1~2 parts by weight of powder.
3. composite material according to claim 1, it is characterised in that：
The Wormwood fiber is surface treated Wormwood fiber, and the surface treatment successively includes at alkali process and coupling agent
Reason.
4. composite material according to claim 3, which is characterized in that
The alkali process specifically includes step：It is molten that the Wormwood fiber that grain diameter is no more than 0.180mm is immersed in sodium hydroxide
In liquid, rinse after immersion to neutrality, then dry.
5. composite material according to claim 4, it is characterised in that：
The mass fraction of sodium hydroxide is 4%~6% in the sodium hydroxide solution, and the time of the immersion is 42~54h.
6. composite material according to claim 3, which is characterized in that
The coupling agent treatment specifically includes step：Coupling agent solution is sprayed into the Wormwood fiber after alkali process, until coupling
Agent solution sufficiently infiltrates the Wormwood fiber after alkali process, then dries.
7. composite material according to claim 6, it is characterised in that：
The coupling agent solution is mixed using silane coupling agent and ethyl alcohol, the body of the silane coupling agent and the ethyl alcohol
Product is than being 1:(4~6)；The silane coupling agent is KH550 silane coupling agent；
It is lasting to stir during spraying coupling agent solution into the Wormwood fiber after alkali process；
The temperature of the drying is 100~110 DEG C.
8. the preparation method of the described in any item composite materials of claim 1-7, which is characterized in that including step：
All raw material components are mixed in proportion, mixed raw material components are obtained；
The mixed raw material components are granulated using double screw extruder, obtain raw particles；
It will be injection moulded after raw particles drying, obtain the composite material.
9. the preparation method of composite material according to claim 8, it is characterised in that：
Described be granulated using double screw extruder is that the mixed raw material components are successively transported to the 5th area from the firstth area,
Obtain the raw particles；The temperature in the firstth area to the 5th area is respectively：First 155 DEG C of area, 165 DEG C of the secondth area, third
175 DEG C of area, 180 DEG C of the 4th area, 190 DEG C of the 5th area.
10. the described in any item composite materials of claim 1-7 are preparing the application in daily necessities.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040376A (en) * | 2019-12-31 | 2020-04-21 | 蕲春时珍艾草科技有限公司 | Method for preparing moxa powder product |
| CN113480783A (en) * | 2021-06-30 | 2021-10-08 | 湖北蕲艾堂科技有限公司 | Moxa fiber and method for manufacturing moxa powder product by using same |
| CN114230925A (en) * | 2021-12-29 | 2022-03-25 | 重庆普利特新材料有限公司 | Environment-friendly polypropylene composite material with natural antibacterial function for automotive interior and preparation method thereof |
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