CN113279144A - Environment-friendly degradable non-woven fabric and preparation method thereof - Google Patents
Environment-friendly degradable non-woven fabric and preparation method thereof Download PDFInfo
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- CN113279144A CN113279144A CN202110561133.6A CN202110561133A CN113279144A CN 113279144 A CN113279144 A CN 113279144A CN 202110561133 A CN202110561133 A CN 202110561133A CN 113279144 A CN113279144 A CN 113279144A
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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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
-
- 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
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses an environment-friendly degradable non-woven fabric and a preparation method thereof, wherein the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight: 50-60 parts of bio-based polyethylene glycol succinate, 35-42 parts of polyethylene glycol modified polylactic acid, 7-9 parts of ethylene terephthalate, 12-16 parts of epoxidized natural rubber, 2-2.6 parts of porous nano hydroxyapatite, 3-3.8 parts of porous nano silica micropowder, 1.4-1.7 parts of sulfadiazine zinc, 1-1.3 parts of flusilazole, 2.4-2.8 parts of nano silver ion antibacterial powder and 3.5-5 parts of epoxy soybean octyl oleate. The environment-friendly degradable non-woven fabric is environment-friendly and degradable; the antibacterial rate is high, the antibacterial performance is excellent, and the antibacterial effect is good; high breaking strength, high elongation at break and good comprehensive mechanical properties.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to an environment-friendly degradable non-woven fabric and a preparation method thereof.
Background
Nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has no warp and weft, is very convenient to cut and sew, is light in weight and easy to shape, and is popular with hand fans. Because it is a fabric formed without spinning a woven fabric, it is formed by orienting or randomly arranging textile staple fibers or filaments to form a web structure and then reinforcing them by mechanical, thermal or chemical means.
The fiber for producing the non-woven fabric is mainly polypropylene (PP) and Polyester (PET). In addition, there are Polyamide (PA), viscose, acrylic, polyethylene (HDPE), polyvinyl chloride (PVC). The non-woven fabric is classified into a disposable type and a durable type according to application requirements.
However, the currently used through-air nonwoven fabric has the following problems:
1. non-degradable, or low degradation;
2. the mechanical properties (breaking strength and breaking elongation) of the degradable material are poor, the comprehensive use performance is poor, and the application is hindered; 3. the antibacterial effect is poor and is not lasting.
Disclosure of Invention
Based on the above situation, the present invention aims to provide an environment-friendly degradable non-woven fabric and a preparation method thereof, which can effectively solve the above problems. The environment-friendly degradable non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, and adopting appropriate proportions of bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, polyethylene glycol terephthalate, epoxidized natural rubber, porous nano-hydroxyapatite, porous nano-silica micro powder, zinc sulfadiazine, flusilazole, nano-silver ion antibacterial powder and epoxy soybean octyl oleate, so that the advantages of the bio-based polyethylene glycol succinate, the polyethylene glycol modified polylactic acid, the polyethylene glycol terephthalate, the epoxidized natural rubber, the porous nano-hydroxyapatite and the porous nano-silica micro powder are fully exerted, the nano-silver ion antibacterial powder and the epoxy soybean octyl oleate are mutually supplemented and promoted, and the prepared environment-friendly degradable non-woven fabric is environment-friendly and degradable; the antibacterial rate is high, the antibacterial performance is excellent, and the antibacterial effect is good; the breaking strength is high, the breaking elongation is high, and the comprehensive mechanical property is good; the comprehensive service performance is good, and the market application prospect is wide.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
50-60 parts of bio-based polyethylene glycol succinate,
35-42 parts of polyethylene glycol modified polylactic acid,
7-9 parts of ethylene terephthalate,
12-16 parts of epoxidized natural rubber,
2-2.6 parts of porous nano-hydroxyapatite,
3-3.8 parts of porous nano-silica micro powder,
1.4 to 1.7 parts of sulfadiazine zinc,
1-1.3 parts of flusilazole,
2.4 to 2.8 portions of nano silver ion antibacterial powder,
3.5-5 parts of epoxy soybean octyl oleate.
The environment-friendly degradable non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, and adopting appropriate proportions of bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, polyethylene glycol terephthalate, epoxidized natural rubber, porous nano-hydroxyapatite, porous nano-silica micro powder, zinc sulfadiazine, flusilazole, nano-silver ion antibacterial powder and epoxy soybean octyl oleate, so that the advantages of the bio-based polyethylene glycol succinate, the polyethylene glycol modified polylactic acid, the polyethylene glycol terephthalate, the epoxidized natural rubber, the porous nano-hydroxyapatite and the porous nano-silica micro powder are fully exerted, the nano-silver ion antibacterial powder and the epoxy soybean octyl oleate are mutually supplemented and promoted, and the prepared environment-friendly degradable non-woven fabric is environment-friendly and degradable; the antibacterial rate is high, the antibacterial performance is excellent, and the antibacterial effect is good; the breaking strength is high, the breaking elongation is high, and the comprehensive mechanical property is good; the comprehensive service performance is good, and the market application prospect is wide.
Preferably, the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
55 parts of bio-based polyethylene glycol succinate,
38.5 portions of polyethylene glycol modified polylactic acid,
8 portions of ethylene terephthalate,
14 parts of epoxidized natural rubber,
2.3 parts of porous nano-hydroxyapatite,
3.4 parts of porous nano silicon dioxide micro powder,
1.55 parts of sulfadiazine zinc,
1.15 parts of flusilazole,
2.6 portions of nano silver ion antibacterial powder,
4.3 parts of epoxy soybean octyl oleate.
Preferably, the bio-based polyethylene glycol succinate is prepared by polymerization reaction of petroleum-based succinic acid and bio-based ethylene glycol.
Preferably, the flusilazole is flusilazole EC.
Preferably, the particle diameter of the porous nano-silica micro powder is 105-115 nm, and the pore diameter is 13-17 nm.
Preferably, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: 2.5-3.5 parts of antioxidant.
Preferably, the antioxidant is antioxidant 1010.
Preferably, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: 3-4 parts of a heat stabilizer.
Preferably, the heat stabilizer is zinc stearate.
Meanwhile, the invention also provides a preparation method of the environment-friendly degradable non-woven fabric, which comprises the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 1-3 dtex;
E. and drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing to obtain the environment-friendly degradable non-woven fabric.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the environment-friendly degradable non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, and adopting appropriate proportions of bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, polyethylene glycol terephthalate, epoxidized natural rubber, porous nano-hydroxyapatite, porous nano-silica micro powder, zinc sulfadiazine, flusilazole, nano-silver ion antibacterial powder and epoxy soybean octyl oleate, so that the advantages of the bio-based polyethylene glycol succinate, the polyethylene glycol modified polylactic acid, the polyethylene glycol terephthalate, the epoxidized natural rubber, the porous nano-hydroxyapatite and the porous nano-silica micro powder are fully exerted, the nano-silver ion antibacterial powder and the epoxy soybean octyl oleate are mutually supplemented and promoted; the antibacterial rate is high, the antibacterial performance is excellent, and the antibacterial effect is good; high breaking strength, high elongation at break and good comprehensive mechanical properties.
The environment-friendly degradable non-woven fabric is added with proper proportion of bio-based polyethylene glycol succinate (degradable and high in mechanical strength), polyethylene glycol modified polylactic acid (degradable and high in mechanical strength), polyethylene glycol terephthalate (high in mechanical property) and epoxidized natural rubber (reinforcing and toughening, particularly greatly improving the elongation at break), so that a good synergistic effect is achieved, good environment-friendly degradability is guaranteed, the breaking strength and the elongation at break of the environment-friendly degradable non-woven fabric are greatly improved, and the comprehensive mechanical property is good.
The environment-friendly degradable non-woven fabric is added with porous nano-hydroxyapatite (hydrophilic skin-friendly, reinforced and used as a carrier) and porous nano-silica micro powder (reinforced and used as a carrier) in a proper proportion, and the zinc sulfadiazine and the flusilazole are added in a proper proportion, wherein the flusilazole is flusilazole EC and nano-silver ion antibacterial powder, and the components are matched with each other to play a good synergistic effect, so that the antibacterial performance of the environment-friendly degradable non-woven fabric is greatly improved, and the durability of the antibacterial performance of the environment-friendly degradable non-woven fabric is greatly improved by matching the porous nano-hydroxyapatite and the porous nano-silica micro powder, and the mechanical performance, the hydrophilic skin-friendly performance and the like of the environment-friendly degradable non-woven fabric are not influenced.
The environment-friendly degradable non-woven fabric is added with epoxy soybean octyl oleate serving as a plasticizer in a proper proportion, the plasticizer is matched with epoxidized natural rubber to play a good synergistic effect, and an epoxy group can be slightly crosslinked with active groups (hydroxyl or carboxyl) in bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate and the like at a high temperature in the spinning process, so that the environment-friendly degradable non-woven fabric is large in breaking strength, high in breaking elongation and good in comprehensive mechanical property.
The preparation method of the environment-friendly degradable non-woven fabric is simple in process and simple and convenient to operate, and can adopt a spunlace process or a needling process commonly used in the field, so that the labor and equipment cost are saved.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
50-60 parts of bio-based polyethylene glycol succinate,
35-42 parts of polyethylene glycol modified polylactic acid,
7-9 parts of ethylene terephthalate,
12-16 parts of epoxidized natural rubber,
2-2.6 parts of porous nano-hydroxyapatite,
3-3.8 parts of porous nano-silica micro powder,
1.4 to 1.7 parts of sulfadiazine zinc,
1-1.3 parts of flusilazole,
2.4 to 2.8 portions of nano silver ion antibacterial powder,
3.5-5 parts of epoxy soybean octyl oleate.
In this embodiment, the environmentally-friendly degradable non-woven fabric is preferably made from the following raw materials in parts by weight:
55 parts of bio-based polyethylene glycol succinate,
38.5 portions of polyethylene glycol modified polylactic acid,
8 portions of ethylene terephthalate,
14 parts of epoxidized natural rubber,
2.3 parts of porous nano-hydroxyapatite,
3.4 parts of porous nano silicon dioxide micro powder,
1.55 parts of sulfadiazine zinc,
1.15 parts of flusilazole,
2.6 portions of nano silver ion antibacterial powder,
4.3 parts of epoxy soybean octyl oleate.
In this embodiment, the bio-based polyethylene glycol succinate is preferably prepared by polymerizing petroleum-based succinic acid and bio-based ethylene glycol.
In the present embodiment, the flusilazole is preferably flusilazole EC.
In the present embodiment, the porous nano-silica fine powder preferably has a particle size of 105 to 115nm and a pore diameter of 13 to 17 nm.
In this embodiment, the environmentally-friendly degradable non-woven fabric preferably further comprises the following raw materials in parts by weight: 2.5-3.5 parts of antioxidant.
In this embodiment, the antioxidant is preferably an antioxidant 1010.
In this embodiment, the environmentally-friendly degradable non-woven fabric preferably further comprises the following raw materials in parts by weight: 3-4 parts of a heat stabilizer.
In this embodiment, the heat stabilizer is preferably zinc stearate.
The embodiment also provides a preparation method of the environment-friendly degradable non-woven fabric, which comprises the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 1-3 dtex;
E. and (3) drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing (such as net fixing through a rolling mill) to obtain the environment-friendly degradable non-woven fabric.
Example 2:
the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
50 parts of bio-based polyethylene glycol succinate,
35 portions of polyethylene glycol modified polylactic acid,
7 parts of ethylene terephthalate,
12 portions of epoxidized natural rubber,
2 portions of porous nano-hydroxyapatite,
3 parts of porous nano silicon dioxide micro powder,
1.4 parts of sulfadiazine zinc,
1 part of flusilazole,
2.4 parts of nano silver ion antibacterial powder,
3.5 parts of epoxy soybean octyl oleate.
In this example, the bio-based polyethylene glycol succinate is prepared by polymerizing petroleum-based succinic acid and bio-based ethylene glycol.
In this embodiment, the flusilazole is flusilazole EC.
In this embodiment, the porous nano-silica fine powder has a particle size of 105 to 115nm and a pore diameter of 13 to 17 nm.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: and 2.5 parts of an antioxidant.
In this example, the antioxidant is antioxidant 1010.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: and 3 parts of a heat stabilizer.
In this example, the thermal stabilizer is zinc stearate.
In this embodiment, the method for preparing the environmentally-friendly degradable non-woven fabric includes the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 2 dtex;
E. and drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing to obtain the environment-friendly degradable non-woven fabric.
Example 3:
the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
60 parts of bio-based polyethylene glycol succinate,
42 parts of polyethylene glycol modified polylactic acid,
9 portions of ethylene terephthalate,
16 portions of epoxidized natural rubber,
2.6 parts of porous nano-hydroxyapatite,
3.8 parts of porous nano silicon dioxide micro powder,
1.7 parts of sulfadiazine zinc,
1.3 parts of flusilazole,
2.8 portions of nano silver ion antibacterial powder,
5 parts of epoxy soybean octyl oleate.
In this example, the bio-based polyethylene glycol succinate is prepared by polymerizing petroleum-based succinic acid and bio-based ethylene glycol.
In this embodiment, the flusilazole is flusilazole EC.
In this embodiment, the porous nano-silica fine powder has a particle size of 105 to 115nm and a pore diameter of 13 to 17 nm.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: and 3.5 parts of an antioxidant.
In this example, the antioxidant is antioxidant 1010.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: 4 parts of a heat stabilizer.
In this example, the thermal stabilizer is zinc stearate.
In this embodiment, the method for preparing the environmentally-friendly degradable non-woven fabric includes the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 2 dtex;
E. and drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing to obtain the environment-friendly degradable non-woven fabric.
Example 4:
the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
55 parts of bio-based polyethylene glycol succinate,
38.5 portions of polyethylene glycol modified polylactic acid,
8 portions of ethylene terephthalate,
14 parts of epoxidized natural rubber,
2.3 parts of porous nano-hydroxyapatite,
3.4 parts of porous nano silicon dioxide micro powder,
1.55 parts of sulfadiazine zinc,
1.15 parts of flusilazole,
2.6 portions of nano silver ion antibacterial powder,
4.3 parts of epoxy soybean octyl oleate.
In this example, the bio-based polyethylene glycol succinate is prepared by polymerizing petroleum-based succinic acid and bio-based ethylene glycol.
In this embodiment, the flusilazole is flusilazole EC.
In this embodiment, the porous nano-silica fine powder has a particle size of 105 to 115nm and a pore diameter of 13 to 17 nm.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: and 3 parts of an antioxidant.
In this example, the antioxidant is antioxidant 1010.
In this embodiment, the environment-friendly degradable non-woven fabric further comprises the following raw materials in parts by weight: 3.5 parts of a heat stabilizer.
In this example, the thermal stabilizer is zinc stearate.
In this embodiment, the method for preparing the environmentally-friendly degradable non-woven fabric includes the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 2 dtex;
E. and drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing to obtain the environment-friendly degradable non-woven fabric.
Comparative example 1:
the difference from example 4 is that the polyethylene glycol-modified polylactic acid is not used, and the other steps are the same as example 4.
Comparative example 2:
the difference from example 4 is that no ethylene terephthalate is present, and the other is the same as example 4.
Comparative example 3:
the difference from example 4 is that no epoxidized natural rubber is present, and the other steps are the same as in example 4.
Comparative example 4:
the difference from the example 4 is that the porous nano hydroxyapatite is not present, and the rest is the same as the example 4.
Comparative example 5:
the difference from example 4 is that no porous fine nano-silica powder is present, and the other steps are the same as example 4.
Comparative example 6:
the difference from example 4 is that there is no zinc sulfadiazine, otherwise the same as example 4.
Comparative example 7:
the difference from example 4 is that flusilazole EC is absent, and the rest is the same as example 4.
Comparative example 8:
the difference from example 4 is that there is no nano silver ion antibacterial powder, and the other is the same as example 4.
Comparative example 9:
the difference from example 4 is that there is no epoxidized octyl soyate, otherwise the same as example 4.
And (3) performance testing: the environmentally friendly degradable nonwoven fabrics (having a grammage of 500g/m2) obtained in examples 2 to 4 of the present invention and comparative examples 1 to 9 were respectively subjected to performance tests, and the test results are shown in table 1.
TABLE 1
As can be seen from the table above, the environment-friendly degradable non-woven fabric has high antibacterial rate, excellent antibacterial performance and good antibacterial effect; high breaking strength, high elongation at break and good comprehensive mechanical properties.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The environment-friendly degradable non-woven fabric is characterized by being prepared from the following raw materials in parts by weight:
50-60 parts of bio-based polyethylene glycol succinate,
35-42 parts of polyethylene glycol modified polylactic acid,
7-9 parts of ethylene terephthalate,
12-16 parts of epoxidized natural rubber,
2-2.6 parts of porous nano-hydroxyapatite,
3-3.8 parts of porous nano-silica micro powder,
1.4 to 1.7 parts of sulfadiazine zinc,
1-1.3 parts of flusilazole,
2.4 to 2.8 portions of nano silver ion antibacterial powder,
3.5-5 parts of epoxy soybean octyl oleate.
2. The environment-friendly degradable non-woven fabric according to claim 1, wherein the environment-friendly degradable non-woven fabric is prepared from the following raw materials in parts by weight:
55 parts of bio-based polyethylene glycol succinate,
38.5 portions of polyethylene glycol modified polylactic acid,
8 portions of ethylene terephthalate,
14 parts of epoxidized natural rubber,
2.3 parts of porous nano-hydroxyapatite,
3.4 parts of porous nano silicon dioxide micro powder,
1.55 parts of sulfadiazine zinc,
1.15 parts of flusilazole,
2.6 portions of nano silver ion antibacterial powder,
4.3 parts of epoxy soybean octyl oleate.
3. The environment-friendly degradable non-woven fabric according to claim 1, wherein the bio-based polyethylene glycol succinate is prepared by polymerization of petroleum-based succinic acid and bio-based ethylene glycol.
4. The environment-friendly degradable non-woven fabric according to claim 1, wherein the flusilazole is flusilazole EC.
5. The environment-friendly degradable non-woven fabric according to claim 1, wherein the porous nano-silica micro powder has a particle size of 105 to 115nm and a pore diameter of 13 to 17 nm.
6. The environment-friendly degradable non-woven fabric according to claim 1, further comprising the following raw materials in parts by weight: 2.5-3.5 parts of antioxidant.
7. The environment-friendly degradable non-woven fabric according to claim 6, wherein the antioxidant is antioxidant 1010.
8. The environment-friendly degradable non-woven fabric according to claim 1, further comprising the following raw materials in parts by weight: 3-4 parts of a heat stabilizer.
9. The environmentally friendly degradable nonwoven fabric of claim 8, wherein the heat stabilizer is zinc stearate.
10. The method for preparing the environment-friendly degradable non-woven fabric according to any one of claims 1 to 9, which comprises the following steps:
A. weighing the following components in parts by weight: bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, porous nano hydroxyapatite, porous nano silica micro powder, sulfadiazine zinc, flusilazole, nano silver ion antibacterial powder and epoxy soybean octyl oleate;
B. uniformly ball-milling and mixing the porous nano-hydroxyapatite, the porous nano-silica micro powder, the sulfadiazine zinc, the flusilazole and the nano-silver ion antibacterial powder by using an ultrafine ball mill to obtain the antibacterial agent;
C. b, feeding bio-based polyethylene glycol succinate, polyethylene glycol modified polylactic acid, ethylene terephthalate, epoxidized natural rubber, epoxy soybean octyl oleate and the antibacterial agent obtained in the step B into a double-screw extruder for melting and extruding into a mixed melt;
D. the mixed melt is metered through a gear pump, the metered mixed melt enters a die head of a spinning machine, and spinning is carried out through a spinneret plate of the spinning machine to form composite fibers; the fineness of the composite fiber is 1-3 dtex;
E. and drafting the composite fibers through air flow, uniformly paving the drafted composite fibers on a net curtain in sequence, and reinforcing to obtain the environment-friendly degradable non-woven fabric.
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