CN112575449A - Polypropylene non-woven fabric with antibacterial property and preparation method thereof - Google Patents
Polypropylene non-woven fabric with antibacterial property and preparation method thereof Download PDFInfo
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- CN112575449A CN112575449A CN202011412004.2A CN202011412004A CN112575449A CN 112575449 A CN112575449 A CN 112575449A CN 202011412004 A CN202011412004 A CN 202011412004A CN 112575449 A CN112575449 A CN 112575449A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
Abstract
The application relates to the field of non-woven fabrics, and particularly discloses an antibacterial polypropylene non-woven fabric and a preparation method thereof. The preparation method comprises the following steps: step one, grafting: mixing regenerated polypropylene, acrylonitrile, 3-indolylmaleimide and an antibacterial agent in a ratio of 100: 1.5-2.5: 0.1-0.2: 13-20, and heating to obtain a polypropylene graft copolymer; step two, granulation: extruding the graft copolymer to granulate; step three, spinning: granulating and melting the polypropylene graft copolymer, and drawing and sucking to carry out spinning to obtain polypropylene spinning; step four, forming a net: drawing the polypropylene spinning high-speed air flow into a net to obtain a polypropylene net; step five, forming cloth: and (3) carrying out hot rolling, winding and cloth backing and slitting on the polypropylene net to obtain the antibacterial polypropylene non-woven fabric. The non-woven fabric has the advantages of good antibacterial property and high mechanical strength; in addition, the preparation method has the advantage that the antibacterial property and the mechanical strength of the non-woven fabric are better.
Description
Technical Field
The application relates to the field of non-woven fabrics, in particular to an antibacterial polypropylene non-woven fabric and a preparation method thereof.
Background
The non-woven fabric (non-woven fabric) is a fabric formed without spinning woven fabric, and is formed by only carrying out directional or random arrangement on textile short fibers or filaments to form a fiber web structure and then reinforcing the fiber web structure by adopting methods such as mechanical, thermal bonding or chemical and the like, which is simple: the non-woven fabric is not formed by interweaving and knitting yarns one by one, but is formed by forming a net by high polymer chips, short fibers or filaments through air flow or machinery, then carrying out spunlace, needle punching or hot rolling reinforcement, and finally carrying out after-treatment.
At present, the world textile industry faces two big problems, on one hand, along with the development of world science and technology economy, the application field of fabrics enlarges gradually, and life cycle shortens, and the world population is constantly increasing, and the consumption of everyone's fabrics increases rapidly, leads to textile raw materials to lack, and the price rises by a wide margin, and on the other hand, a large amount of old and useless fabrics are buried and are burnt as rubbish mostly, have not only caused the wasting of resources, have polluted the environment again. Therefore, the recycling and comprehensive utilization of waste textiles are widely regarded, a large amount of resources can be saved, the pollution of the textile industry to the environment can be reduced, and the method is a development direction of regenerated non-woven fabrics.
At the present stage, the regenerated polypropylene non-woven fabric is produced by using the regenerated polypropylene, although the polypropylene has antibacterial property, after the regenerated polypropylene is formed by recycling, the antibacterial property is far lower than that of the polypropylene non-woven fabric, and the mechanical strength of the polypropylene material is general, so that the wide application of the regenerated material is limited, and therefore, the space for improvement is provided.
Disclosure of Invention
In order to obtain a regenerated polypropylene non-woven fabric with good mechanical strength and good antibacterial effect, the application provides a polypropylene non-woven fabric with antibacterial property and a preparation method thereof.
The polypropylene non-woven fabric with antibacterial property and the preparation method thereof adopt the following technical scheme:
in a first aspect, the present application provides a method for preparing an antibacterial polypropylene nonwoven fabric, comprising the following steps:
step one, grafting: mixing the regenerated polypropylene, acrylonitrile and the antibacterial agent in a ratio of 100: (1.5-2.5): (0.1-0.2): (13-20), and reacting for 5-8 hours at the temperature of 160-170 ℃ and the pressure of 4-6 MPa to obtain a polypropylene graft copolymer;
step two, granulation: extruding the polypropylene graft copolymer at a rotating speed of 300-400 r/min and a temperature of 140-160 ℃ to obtain polypropylene graft copolymer master batches;
step three, spinning: melting the polypropylene graft copolymer master batch, drawing and sucking at the rotating speed of 20-30 r/min and the temperature of 160-180 ℃ for spinning to obtain polypropylene spinning;
step four, forming a net: performing air drafting web forming on the polypropylene spun yarn under the conditions that the air temperature is 10-20 ℃ and the air pressure is 1.0-2.0 KPa to obtain a polypropylene web;
step five, forming cloth: firstly, hot rolling the polypropylene net at the temperature of 60-80 ℃, then winding, finally, inverting and cutting the cloth to obtain the antibacterial polypropylene non-woven fabric.
Preferably, the ratio of the recycled polypropylene, the acrylonitrile and the 3-indolylmaleimide in the first step is 100: (1.8-2.2): (0.16-0.18).
Preferably, the antibacterial agent is a compound of potassium dodecyl phosphate and hexabromocyclododecane.
Preferably, the mass ratio of the regenerated polypropylene to the potassium dodecyl phosphate to the hexabromocyclododecane is 100: (6.5-6.8): (10-11).
By adopting the technical scheme, the polypropylene, the acrylonitrile and the 3-indolylmaleimide are adopted, and the 3-indolylmaleimide is used as the initiator, so that the acrylonitrile is grafted on the polypropylene to form a graft copolymer, small molecular free radicals on the polypropylene are changed into macromolecular free radicals, and the polypropylene, the acrylonitrile and the 3-indolylmaleimide react in a specific ratio, so that the collision probability among the free radicals is increased, the grafting rate is increased, more grafts are grafted on the polypropylene, and the prepared polypropylene non-woven fabric has better mechanical strength and is not easy to break.
The polypropylene, the potassium dodecyl phosphate and the hexabromocyclododecane are matched in a specific proportion to destroy the cell wall of bacteria, so that cell membranes are broken, cytoplasm is leaked outside, the metabolic process of microorganisms is stopped, the bacteria, fungi and molds on the polypropylene non-woven fabric are removed, the microorganisms cannot grow and reproduce, the non-woven fabric is kept clean, the bacteria can be prevented from regenerating and reproducing, and the potassium dodecyl phosphate and the hexabromocyclododecane are fixed in the polypropylene to be protected in the melting process, so that the polypropylene non-woven fabric has washability and a reliable broad-spectrum antibacterial effect.
Preferably, in the step one, the regenerated polypropylene, the acrylonitrile, the 3-indolylmaleimide and the antibacterial agent are added, mixed, vacuumized and protected by nitrogen.
By adopting the technical scheme, the components are added in the step one, then the components are vacuumized and protected by nitrogen, the participation of oxygen in the reaction process is reduced, the grafting reaction process is stable, new compounds are not easy to generate, micromolecular free radicals on the polypropylene are changed into macromolecular free radicals more stably, the collision probability between the free radicals is larger, the grafting rate is further increased, more grafts are carried out on the polypropylene, and the prepared polypropylene non-woven fabric has better mechanical strength and is not easy to break.
Preferably, the molecular weight of the regenerated polypropylene is 200000-400000.
By adopting the technical scheme, the prepared polypropylene non-woven fabric is more easily degraded under the premise of better mechanical strength due to the adoption of the regenerated polypropylene with the molecular weight of 200000-400000, so that the pollution to the environment is reduced.
Preferably, in the second step, the rotating speed is 350-370 r/min, and the temperature is 150-155 ℃.
Through adopting above-mentioned technical scheme for obtain more even master batch in the granulation process, be difficult for because of the too high antibiotic effect that can not reach of making the auxiliary agent volatilize of temperature, make the antibiotic effect of polypropylene non-woven fabrics better.
Preferably, the rotating speed of the third step is 24-26 r/min, and the temperature is 168-174 ℃.
By adopting the technical scheme, the spinning length is not easy to be reduced due to the over-small rotating speed of the polypropylene granulation by adopting 24-26 r/min, the spinning strength is not easy to be reduced due to the over-large rotating speed, the temperature is 168-174 ℃, the filament bundles are not easy to cool and break in the spinning process, the spinning quality is improved, and the polypropylene non-woven fabric with better mechanical strength is prepared.
Preferably, the wind pressure in the fourth step is 1.8 KPa.
Through adopting above-mentioned technical scheme, owing to adopt 1.8 KPa's wind pressure for net formation process wind pressure can not lead to the polypropylene spinning too strongly by the overstretching and mechanical properties is relatively poor, also difficult wind pressure undersize leads to the utilization ratio of polypropylene spinning to diminish and increase the cost of production, reduces manufacturing cost when making the mechanical strength of polypropylene non-woven fabrics better, makes the difficult tear of bacterinertness polypropylene non-woven fabrics and durable.
In a second aspect, the present application provides an antibacterial polypropylene nonwoven fabric, which adopts the following technical scheme:
an antibacterial polypropylene non-woven fabric is prepared by the method.
By adopting the technical scheme, the polypropylene non-woven fabric prepared by the preparation method has excellent antibacterial property, biodegradability and mechanical strength.
In summary, the present application has the following beneficial effects:
1. this application is owing to adopt polypropylene, acrylonitrile and 3-indolylmaleimide to 3-indolylmaleimide is the initiator, makes the acrylonitrile graft and forms graft copolymer on polypropylene, makes the micromolecular free radical on the polypropylene become the macromolecule free radical, thereby makes the mechanical strength of the polypropylene non-woven fabrics of making better and difficult fracture.
2. The polypropylene, the potassium dodecyl phosphate and the hexabromocyclododecane are matched in a specific proportion, so that microorganisms cannot grow and reproduce to keep the cleanness of the non-woven fabric, and the potassium dodecyl phosphate and the hexabromocyclododecane are fixed in the polypropylene to be protected in the melting process, so that the polypropylene non-woven fabric has washability and a reliable broad-spectrum antibacterial effect.
3. The polypropylene non-woven fabric prepared by the preparation method has the effects of excellent antibacterial property, biodegradability and excellent mechanical strength.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
The recycled polypropylene is recycled scrap polypropylene sold by plastic hardware Limited of Audita, Queku, City.
Example 1
The embodiment discloses an antibacterial polypropylene non-woven fabric, which is prepared by the following steps:
step one, graft copolymerization: mixing recycled polypropylene, acrylonitrile, 3-indolylmaleimide, potassium dodecyl phosphate and hexabromocyclododecane in a ratio of 100: 1.5: 0.1: 5: 8, adding the mixture into a reaction kettle, and reacting for 5 hours at the melting temperature of 160 ℃ and the pressure of 4MPa to obtain the polypropylene graft copolymer.
Step two, granulation: and (3) feeding the polypropylene graft copolymer into a metering pump through a conveying pipeline, and extruding the polypropylene graft copolymer at the rotating speed of 300 revolutions per minute and the temperature of 140 ℃ to obtain polypropylene graft copolymer master batches.
Step three, spinning: and (3) drawing and sucking the polypropylene graft copolymer master batch melt spinning machine at the rotating speed of 20 r/min and the spinning temperature of 160 ℃ for spinning to obtain polypropylene spinning.
Step four, forming a net: and (3) forming the polypropylene into a net under the action of high-speed airflow drafting of a net forming machine at the air temperature of 10 ℃ and the air pressure of 1.0KPa to obtain the polypropylene net.
Step five, forming cloth: and (3) hot rolling the polypropylene net at the temperature of 60 ℃ in a hot rolling mill, winding on a winding machine, and finally, reversing and cutting to obtain the antibacterial polypropylene non-woven fabric.
Example 2
The embodiment discloses an antibacterial polypropylene non-woven fabric, which is prepared by the following steps:
step one, graft copolymerization: mixing recycled polypropylene, acrylonitrile, 3-indolylmaleimide, potassium dodecyl phosphate and hexabromocyclododecane in a ratio of 100: 1.8: 0.16: 6.5: 10, adding the mixture into a reaction kettle, vacuumizing the reaction kettle, then protecting the reaction kettle with nitrogen, and reacting for 6 hours at the melting temperature of 165 ℃ and the pressure of 5MPa to obtain the polypropylene graft copolymer.
Step two, granulation: and (3) feeding the polypropylene graft copolymer into a metering pump through a conveying pipeline, and extruding the polypropylene graft copolymer at the rotating speed of 350 revolutions per minute and the temperature of 150 ℃ to obtain polypropylene graft copolymer master batches. .
Step three, spinning: and (3) drawing and sucking the polypropylene graft copolymer master batch melt spinning machine at the rotating speed of 24 r/min and the spinning temperature of 168 ℃ for spinning to obtain polypropylene spinning.
Step four, forming a net: and (3) forming the polypropylene into a net under the action of high-speed airflow drafting of a net forming machine with the air temperature of 15 ℃ and the air pressure of 1.2KPa, thus obtaining the polypropylene net.
Step five, forming cloth: and (3) hot rolling the polypropylene net at the temperature of 70 ℃ in a hot rolling mill, winding on a winding machine, and finally, reversing and cutting to obtain the antibacterial polypropylene non-woven fabric.
Example 3
The embodiment discloses an antibacterial polypropylene non-woven fabric, which is prepared by the following steps:
step one, graft copolymerization: mixing recycled polypropylene, acrylonitrile, 3-indolylmaleimide, potassium dodecyl phosphate and hexabromocyclododecane in a ratio of 100: 2: 0.17: 6.7: 10.5, adding the mixture into a reaction kettle, vacuumizing the reaction kettle, then protecting the reaction kettle with nitrogen, and reacting for 8 hours at the melting temperature of 165 ℃ and the pressure of 5MPa to obtain the polypropylene graft copolymer.
Step two, granulation: and (3) feeding the polypropylene graft copolymer into a metering pump through a conveying pipeline, and extruding the polypropylene graft copolymer at the rotating speed of 365 revolutions per minute and the temperature of 153 ℃ to obtain polypropylene graft copolymer master batches. .
Step three, spinning: and (3) drawing and sucking the polypropylene graft copolymer master batch melt spinning machine at the rotating speed of 20 r/min and the spinning temperature of 170 ℃ for spinning to obtain polypropylene spinning.
Step four, forming a net: and (3) forming the polypropylene spinning into a net under the action of high-speed airflow drafting of a net forming machine with the air temperature of 20 ℃ and the air pressure of 1.3KPa, thus obtaining the polypropylene net.
Step five, forming cloth: and (3) hot rolling the polypropylene net at the temperature of 70 ℃ in a hot rolling mill, winding on a winding machine, and finally, reversing and cutting to obtain the antibacterial polypropylene non-woven fabric.
Example 4
Step one, graft copolymerization: mixing recycled polypropylene, acrylonitrile, 3-indolylmaleimide, potassium dodecyl phosphate and hexabromocyclododecane in a ratio of 100: 2.2: 0.18: 6.8: 11, adding the mixture into a reaction kettle, firstly vacuumizing, then protecting with nitrogen, and reacting for 7 hours at the melting temperature of 170 ℃ and the pressure of 6MPa to obtain the polypropylene graft copolymer.
Step two, granulation: and (3) feeding the polypropylene graft copolymer into a metering pump through a conveying pipeline, and extruding the polypropylene graft copolymer at the rotating speed of 370 r/min and the temperature of 155 ℃ to obtain polypropylene graft copolymer master batches. .
Step three, spinning: and (3) drawing and sucking the polypropylene graft copolymer master batch melt spinning machine at the rotating speed of 30 r/min and the spinning temperature of 174 ℃ for spinning to obtain polypropylene spinning.
Step four, forming a net: and (3) forming the polypropylene into a net under the action of high-speed airflow drafting of a net forming machine with the air temperature of 20 ℃ and the air pressure of 2.0KPa, thus obtaining the polypropylene net.
Step five, forming cloth: and (3) hot rolling the polypropylene net at the temperature of 80 ℃ of a hot rolling mill, winding on a winding machine, and finally, reversing and cutting to obtain the antibacterial polypropylene non-woven fabric.
Example 5
Step one, graft copolymerization: mixing recycled polypropylene, acrylonitrile, 3-indolylmaleimide, potassium dodecyl phosphate and hexabromocyclododecane in a ratio of 100: 2.5: 0.2: 8: 12, adding the mixture into a reaction kettle, vacuumizing the reaction kettle, then protecting the reaction kettle with nitrogen, and reacting for 8 hours at the melting temperature of 170 ℃ and the pressure of 4MPa to obtain the polypropylene graft copolymer.
Step two, granulation: and (3) feeding the polypropylene graft copolymer into a metering pump through a conveying pipeline, and extruding the polypropylene graft copolymer at the rotating speed of 400 rpm and the temperature of 160 ℃ to obtain polypropylene graft copolymer master batches. .
Step three, spinning: melting the polypropylene graft copolymer master batch, drawing and sucking at the spinning machine rotating speed of 25 r/min and the spinning temperature of 180 ℃ for spinning to obtain polypropylene spinning.
Step four, forming a net: and (3) forming the polypropylene into a net under the action of high-speed airflow drafting of a net forming machine with the air temperature of 15 ℃ and the air pressure of 1.5KPa, thus obtaining the polypropylene net.
Step five, forming cloth: and (3) hot rolling the polypropylene net at the temperature of 80 ℃ of a hot rolling mill, winding on a winding machine, and finally, reversing and cutting to obtain the antibacterial polypropylene non-woven fabric.
Example 6
Compared with example 3, the difference is that:
the wind pressure in the fourth step is 1.8 KPa.
Comparative example 1
In the first step, the equivalent amount of silver ion antibacterial agent is adopted to replace the dodecyl potassium phosphate and the hexabromocyclododecane.
Comparative example 2
Compared with example 3, the difference is only that:
in step one, no 3-indolylmaleimide is added.
Comparative example 3
Compared with example 3, the difference is only that:
and (3) eliminating the first step and the second step, and replacing polypropylene graft copolymer with polypropylene in equal amount in the third step for granulation.
Experiment 1
Detection of antibacterial Properties
The polypropylene nonwoven fabrics in the examples and comparative examples were tested for antibacterial performance according to G hexabromocyclododecane/T20944.3-2008 "antibacterial performance test" and standard water washing 50 times, and the detailed data are shown in Table 1.
TABLE 1
| Antibacterial rate/% of the final product | Percent of antibacterial ratio after 50 times of washing | |
| Example 1 | 98.7 | 93.4 |
| Example 2 | 99.1 | 93.7 |
| Example 3 | 99.6 | 94.1 |
| Example 4 | 99.7 | 94.2 |
| Example 5 | 99.8 | 94.3 |
| Example 6 | 99.5 | 94.0 |
| Comparative example 1 | 99.3 | 87.3 |
According to the data of example 3 in table 1 compared with the data of comparative example 1, the antibacterial rate becomes higher after 50 times of standard water washing, which shows that the antibacterial ability of the polypropylene nonwoven fabric made of the regenerated polypropylene after multiple water washing is greater than that of the existing nonwoven fabric made of the silver ion antibacterial agent by adding potassium dodecyl phosphate and hexabromocyclododecane to the polypropylene in a specific ratio.
Experiment 2
Detecting mechanical strength
The polypropylene nonwoven fabrics in the examples and comparative examples were measured for breaking strength and breaking elongation according to G hexabromocyclododecane/T24218.3-2010 "test method for textile nonwovens", and the detailed data are shown in Table 2.
TABLE 2
| Breaking Strength/cN & drex-1 | |
| Example 1 | 1.21 |
| Example 2 | 1.23 |
| Example 3 | 1.27 |
| Example 4 | 1.26 |
| Example 5 | 1.25 |
| Example 6 | 1.31 |
| Comparative example 2 | 0.97 |
| Comparative example 3 | 1.28 |
According to the comparison of the data of the example 6 and the example 3 in the table 2, the breaking strength is improved, which indicates that the wind pressure is 1.8KPa, so that the polypropylene non-woven fabric has better mechanical strength, and the antibacterial polypropylene non-woven fabric is not easy to tear and is durable.
According to the table 2, compared with the comparative example 2, the fracture strength of the example 3 is greatly improved, and the 3-indolylmaleimide and the regenerated polypropylene are matched with graft copolymerization according to a specific proportion, so that the polypropylene non-woven fabric has better mechanical strength, and the antibacterial polypropylene non-woven fabric is not easy to tear and is durable.
According to the fact that the fracture strength of the example 3 in the table 2 is basically the same as that of the comparative example 3, it is shown that the mechanical strength of the regenerated polypropylene non-woven fabric can reach the mechanical strength level of the polypropylene non-woven fabric through the 3-indolylmaleimide and the regenerated polypropylene in a specific proportion by matching with graft copolymerization, so that the application limit of the regenerated polypropylene non-woven fabric is weakened, and the regenerated material is widely applied.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A preparation method of polypropylene non-woven fabric with antibacterial property is characterized by comprising the following steps: the method comprises the following steps:
step one, grafting: mixing regenerated polypropylene, acrylonitrile, 3-indolylmaleimide and an antibacterial agent in a ratio of 100: (1.5-2.5): (0.1-0.2): (13-20), and reacting for 5-8 hours at the temperature of 160-170 ℃ and the pressure of 4-6 MPa to obtain a polypropylene graft copolymer;
step two, granulation: extruding the polypropylene graft copolymer at a rotating speed of 300-400 r/min and a temperature of 140-160 ℃ to obtain polypropylene graft copolymer master batches;
step three, spinning: melting the polypropylene graft copolymer master batch, drawing and sucking at the rotating speed of 20-30 r/min and the temperature of 160-180 ℃ for spinning to obtain polypropylene spinning;
step four, forming a net: performing air drafting web forming on the polypropylene spun yarn under the conditions that the air temperature is 10-20 ℃ and the air pressure is 1.0-2.0 KPa to obtain a polypropylene web;
step five, forming cloth: firstly, hot rolling the polypropylene net at the temperature of 60-80 ℃, then winding, finally, inverting and cutting the cloth to obtain the antibacterial polypropylene non-woven fabric.
2. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: in the first step, the ratio of the regenerated polypropylene to the acrylonitrile to the 3-indolylmaleimide is 100: (5-8): (8-12).
3. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: the antibacterial agent is a compound of dodecyl potassium phosphate and hexabromocyclododecane.
4. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 3, wherein: the mass ratio of the regenerated polypropylene to the potassium dodecyl phosphate to the hexabromocyclododecane is 100: (6.5-6.8): (10-11).
5. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: in the first step, the regenerated polypropylene, the acrylonitrile, the 3-indolylmaleimide and the antibacterial agent are added, and then the mixture is vacuumized and protected by nitrogen.
6. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: the molecular weight of the regenerated polypropylene is 200000-400000.
7. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: in the second step, the rotating speed is 350-370 r/min, and the temperature is 150-155 ℃.
8. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: and in the third step, the rotating speed is 24-26 r/min, and the temperature is 168-174 ℃.
9. The method for preparing an antibacterial polypropylene nonwoven fabric according to claim 1, wherein: the wind pressure in the fourth step is 1.8 KPa.
10. A polypropylene non-woven fabric with antibacterial property is characterized in that: prepared by the preparation method of any one of the claim 1 to the claim 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627554A (en) * | 2022-09-28 | 2023-01-20 | 清华大学 | Method for preparing fiber of imide copolymer and fiber prepared by the same |
| CN115652474A (en) * | 2022-09-28 | 2023-01-31 | 清华大学 | Method for preparing fiber of imide copolymer from amic acid copolymer and fiber prepared thereby |
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| CN115627554A (en) * | 2022-09-28 | 2023-01-20 | 清华大学 | Method for preparing fiber of imide copolymer and fiber prepared by the same |
| CN115652474A (en) * | 2022-09-28 | 2023-01-31 | 清华大学 | Method for preparing fiber of imide copolymer from amic acid copolymer and fiber prepared thereby |
| WO2024067259A1 (en) * | 2022-09-28 | 2024-04-04 | 清华大学 | Method for preparing fiber of imide copolymer and fiber prepared thereby |
| CN115627554B (en) * | 2022-09-28 | 2024-04-05 | 清华大学 | Method for preparing imide copolymer fiber and fiber prepared by same |
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