CN112646335A - Tough polyester material and preparation method and application thereof - Google Patents
Tough polyester material and preparation method and application thereof Download PDFInfo
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- CN112646335A CN112646335A CN202011404279.1A CN202011404279A CN112646335A CN 112646335 A CN112646335 A CN 112646335A CN 202011404279 A CN202011404279 A CN 202011404279A CN 112646335 A CN112646335 A CN 112646335A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 97
- 239000000463 material Substances 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000007822 coupling agent Substances 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 229920000070 poly-3-hydroxybutyrate Polymers 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000013305 food Nutrition 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 239000011701 zinc Substances 0.000 claims abstract description 6
- 229920003232 aliphatic polyester Polymers 0.000 claims abstract description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- FHUDZSGRYLAEKR-UHFFFAOYSA-N 3-hydroxybutanoic acid;4-hydroxybutanoic acid Chemical compound CC(O)CC(O)=O.OCCCC(O)=O FHUDZSGRYLAEKR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001634 Copolyester Polymers 0.000 claims abstract description 4
- 229920001397 Poly-beta-hydroxybutyrate Polymers 0.000 claims abstract description 4
- 229920000331 Polyhydroxybutyrate Polymers 0.000 claims abstract description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 239000010931 gold Substances 0.000 claims abstract description 4
- 229920000218 poly(hydroxyvalerate) Polymers 0.000 claims abstract description 4
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 3
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 42
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 239000004094 surface-active agent Substances 0.000 claims description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- -1 alkyl glycoside Chemical class 0.000 claims description 6
- 229930182470 glycoside Natural products 0.000 claims description 4
- 125000005498 phthalate group Chemical group 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims 1
- 241000588724 Escherichia coli Species 0.000 abstract description 11
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 9
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 9
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000003385 bacteriostatic effect Effects 0.000 description 17
- 238000001746 injection moulding Methods 0.000 description 9
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 7
- 229920000903 polyhydroxyalkanoate Polymers 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 241000194017 Streptococcus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0831—Gold
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of materials, and discloses a tough polyester material and a preparation method and application thereof. The polyester material comprises the following components: polyester, nano metal and coupling agent. The polyester is a hydroxyl-containing aliphatic polyester, such as at least one of poly-beta-hydroxybutyrate, polyhydroxyvalerate, poly-3-hydroxybutyrate, 3-hydroxybutyrate 4-hydroxybutyrate copolyester, or polycaprolactone; the nano metal is selected from nano silver, nano copper, nano zinc or nano gold. The polyester material has good toughness due to the introduction of the nano metal, the elongation at break of the polyester material can be improved to 100%, and the polyester material also has antibacterial performance, has the antibacterial rate of more than 80% for streptococcus aureus, escherichia coli, mould and the like, and is very favorable for the application of the polyester material in the fields of medical appliances, foods or sanitary products.
Description
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a tough polyester material as well as a preparation method and application thereof.
Background
The crystallinity of P3HB (poly-3-hydroxybutyrate) in polyester materials, such as PHA (polyhydroxyalkanoate), is 55% -80%, the crystallization rate is slow, the spherulite size is large, the crystallinity is high, and the like, so that the polyester materials are more rigid and brittle than polypropylene, and the elongation at break is only about 3%, which is far lower than the elongation at break of 400% of polypropylene. The poor toughness of PHA is not conducive to the use of PHA in the medical device field, food field or sanitary product field.
In addition, PHA has no bacteriostatic properties compared to PLA (polylactic acid), which has significant bacteriostatic properties against streptococcus flavus, escherichia coli, and the like.
Therefore, in order to improve the application of the polyester material in the field of medical instruments, food or sanitary products, it is necessary to provide a polyester material having both good toughness and antibacterial property.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides a tough polyester material, and a preparation method and application thereof, wherein the polyester material has good toughness and antibacterial performance, so that the polyester material is very beneficial to the application in the fields of medical appliances, foods or sanitary products.
The invention conception of the invention is as follows: according to the invention, the polyester material is added with nano metal, such as nano silver, nano copper, nano gold and the like, so that nucleation crystallization sites are provided, the crystallization speed of the polyester material is accelerated, the size of crystal spheres in the polyester material can be reduced, the size of the crystal spheres enables micro stress to be better dispersed, and stress concentration is reduced to a certain extent, so that the toughness of the polyester material is improved, namely the elongation at break of the polyester material is improved. The nanometer metal particle can attract thiol group (-SH) with negative charge in protease, effectively pierce the cell wall and cell membrane surface of bacteria, further make bacteria unable to breathe, metabolize and reproduce due to protein denaturation until death, thereby achieving the effect of sterilization.
A first aspect of the invention provides a polyester material having toughness.
Specifically, the polyester material with toughness comprises the following components: polyester, nano metal and coupling agent.
Preferably, the polyester is a hydroxyl group-containing aliphatic polyester, such as PHA (polyhydroxyalkanoate).
Further preferably, the hydroxyl group-containing aliphatic polyester is selected from at least one of poly-beta-hydroxybutyrate (PHB), Polyhydroxyvalerate (PHV), poly-3-hydroxybutyrate (P3HB), 3-hydroxybutyrate 4-hydroxybutyrate copolyester (P3HB-CO-4HB) or polycaprolactone.
Preferably, the nano metal is at least one selected from nano silver, nano copper, nano zinc or nano gold; further preferably, the nano metal is selected from at least one of nano silver, nano copper or nano zinc; more preferably, the nano metal is nano silver.
Preferably, the diameter of the nano metal is 1-999 nm; further preferably, the diameter of the nano metal is 1 to 500 nm.
Preferably, the length of the nano metal is 1nm-0.1 mm; further preferably, the length of the nano metal is 10nm to 0.1 μm.
Preferably, the coupling agent is a phthalate coupling agent and/or a silicate coupling agent. The coupling agent has the functions of connecting polyester and nano metal and reducing the agglomeration of the nano metal.
Preferably, the polyester material further comprises a surfactant. The surfactant has the effect of increasing the dispersion effect of the nano material.
Further preferably, the surfactant is glycerol and/or an alkyl glycoside.
Preferably, the tough polyester material comprises the following components in parts by weight: 90-99 parts of polyester, 0.01-2 parts of nano metal and 0.1-15 parts of coupling agent.
Further preferably, the tough polyester material comprises the following components in parts by weight: 92-99 parts of polyester, 0.01-1 part of nano metal and 0.1-10 parts of coupling agent.
Preferably, the polyester material further comprises a surfactant; the content of the surfactant is 0.5-5 parts by weight; more preferably, the content of the surfactant is 1 to 3 parts.
Another aspect of the present invention provides a method for preparing the polyester material with toughness.
Specifically, the preparation method of the polyester material with toughness comprises the following steps:
the components are mixed, extruded, granulated and molded to obtain the tough polyester material.
Preferably, an internal mixer is used for mixing in the mixing process.
Preferably, the temperature of the mixing is 150-190 ℃; the mixing time is 2-15 minutes; further preferably, the temperature of the mixing is 155-180 ℃; the mixing time is 3-10 minutes.
Preferably, an extruder is used for extrusion in the extrusion process.
Preferably, the temperature of the extruder is 100-185 ℃; further preferably 160-170 ℃.
Preferably, the rotating speed of the extruder is 10-60 revolutions per minute; further preferably 10 to 50 rpm.
The granulation is a conventional technique.
Preferably, the molding mode is any one selected from electrostatic spinning mode, injection molding, fiber molding, non-woven fabric molding, compression molding or 3D printing molding; more preferably, the molding method is injection molding. The molding method belongs to the conventional technology.
Another aspect of the present invention provides the use of the polyester material with toughness described above.
The polyester material with toughness is applied to the preparation of medical appliances, food packages or sanitary products.
The sanitary article does not comprise a medical device.
Compared with the prior art, the invention has the following beneficial effects:
(1) the tough polyester material has good toughness due to the introduction of the nano metal, the elongation at break of the polyester material can be improved to 100%, and the polyester material also has antibacterial performance, and the antibacterial rate of the polyester material to golden streptococcus, escherichia coli, mould and the like is more than 80%.
(2) The polyester material with toughness disclosed by the invention has good toughness and antibacterial performance, and is very favorable for application of the polyester material in the fields of medical instruments, foods or sanitary products.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.
The starting materials, reagents or apparatuses used in the following examples are conventionally commercially available or can be obtained by conventionally known methods, unless otherwise specified. An electronic universal testing machine is adopted to test mechanical properties such as tensile yield stress, tensile strength, tensile breaking strain and the like, and the test standard is GB/T1040.2-2006; in addition, the antibacterial property is tested according to the standard GB/T31402-2015/ISO 22196:2007 test method for the antibacterial property of the plastic-plastic surface.
Example 1: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 97 parts of poly-3-hydroxybutyrate, 0.1 part of nano silver (the diameter is 100nm, the length is 0.1 mu m), 2 parts of phthalate coupling agent and 1 part of glycerol.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 160 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 170 ℃, the rotating speed of the extruder is 50 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 1 is 100% (the elongation at break of poly-3-hydroxybutyrate alone is 5%), the tensile strength is 38MPa, the bacteriostatic rate for streptococcus aureus is 91%, and the bacteriostatic rate for escherichia coli and mold is 85-86%.
Example 2: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 97 parts of poly-3-hydroxybutyrate, 0.1 part of nano copper (the diameter is 500nm, the length is 0.3 mu m), 2 parts of phthalate coupling agent and 1 part of glycerol.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 160 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 170 ℃, the rotating speed of the extruder is 50 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 2 is 50% (elongation at break of poly-3-hydroxybutyrate alone is 5%), the tensile strength is 39MPa, the bacteriostatic rate for streptococcus aureus is 81%, and the bacteriostatic rate for escherichia coli and mold is 81-82%.
Example 3: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 95 parts of poly-beta-hydroxybutyric acid, 0.2 part of nano zinc (the diameter is 200nm, and the length is 0.2 mu m), 5 parts of silicate coupling agent and 2 parts of glycerol.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 165 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 165 ℃, the rotating speed of the extruder is 40 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in the embodiment 3 is 55%, the tensile strength is 39MPa, the bacteriostatic rate on streptococcus aureus is 89%, and the bacteriostatic rate on escherichia coli and mould is 83-84%.
Example 4: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 98 parts of 3-hydroxybutyric acid 4-hydroxybutyric acid copolyester, 0.5 part of nanogold (with the diameter of 600nm and the length of 0.5 mu m), 8 parts of silicate coupling agent and 5 parts of glycerol.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 165 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 165 ℃, the rotating speed of the extruder is 40 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 4 is 75%, the tensile strength is 39MPa, the bacteriostatic rate for streptococcus aureus is 90%, and the bacteriostatic rate for escherichia coli and mold is 83-84%.
Example 5: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 98 parts of poly-beta-hydroxybutyric acid, 0.5 part of nanogold (the diameter is 300nm, and the length is 0.5 mu m), 6 parts of silicate coupling agent and 3 parts of alkyl glycoside.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 165 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 165 ℃, the rotating speed of the extruder is 40 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 5 is 85%, the tensile strength is 39MPa, the bacteriostatic rate for streptococcus aureus is 90%, and the bacteriostatic rate for escherichia coli and mold is 83-84%.
Example 6: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 98 parts of poly-beta-hydroxybutyric acid, 0.5 part of nano silver (the diameter is 150nm, and the length is 0.1 mu m), and 6 parts of silicate coupling agent.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 165 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 165 ℃, the rotating speed of the extruder is 40 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 6 is 90%, the tensile strength is 39MPa, the bacteriostatic rate for streptococcus aureus is 90%, and the bacteriostatic rate for escherichia coli and mold is 84-85%.
Example 7: preparation of polyester materials
The tough polyester material comprises the following components in parts by weight: 92 parts of poly-beta-hydroxybutyric acid, 0.8 part of nano zinc (the diameter is 350nm, and the length is 0.1 mu m), 6 parts of silicate coupling agent and 3 parts of alkyl glycoside.
The preparation method of the polyester material with toughness comprises the following steps:
mixing the components, wherein an internal mixer is used for mixing in the mixing process, and the mixing temperature is 160 ℃; and (3) mixing for 5 minutes, extruding by using an extruder, wherein the temperature of the extruder is 170 ℃, the rotating speed of the extruder is 50 revolutions per minute, granulating, and performing injection molding to obtain the tough polyester material.
The elongation at break of the polyester material prepared in this example 7 is 85%, the tensile strength is 38MPa, the bacteriostatic rate against streptococcus aureus is 85%, and the bacteriostatic rate against escherichia coli and mold is 81-82%.
Comparative example 1
Compared with example 1, in comparative example 1, nano silver was not added, and the remaining components and the preparation method were the same as example 1.
The elongation at break of the polyester material prepared in the comparative example 1 is 5%, the tensile strength is 40MPa, and the polyester material has no bacteriostatic effect on streptococcus aureus, escherichia coli and mould.
Comparative example 2
In comparison with example 1, comparative example 2 does not add a phthalate coupling agent, and the remaining components and preparation method are the same as example 1.
The elongation at break of the polyester material obtained in comparative example 2 was 15% and the tensile strength was 40 MPa.
Claims (10)
1. A polyester material, comprising the following components: polyester, nano metal and coupling agent.
2. The polyester material according to claim 1, wherein the polyester is a hydroxyl group-containing aliphatic polyester.
3. The polyester material according to claim 2, wherein the aliphatic polyester containing hydroxyl groups is selected from at least one of poly- β -hydroxybutyrate, polyhydroxyvalerate, poly-3-hydroxybutyrate, 3-hydroxybutyrate 4-hydroxybutyrate copolyester or polycaprolactone.
4. The polyester material according to claim 1, wherein the nano metal is at least one selected from nano silver, nano copper, nano zinc or nano gold.
5. The polyester material according to claim 1, wherein the diameter of the nanometal is 1-999 nm; the length of the nano metal is 1nm-0.1 mm.
6. The polyester material according to claim 1, wherein the coupling agent is a phthalate coupling agent and/or a silicate coupling agent.
7. The polyester material according to claim 1, further comprising a surfactant; the surfactant is glycerol and/or alkyl glycoside.
8. The polyester material according to claim 1, comprising the following components in parts by weight: 90-99 parts of polyester, 0.01-2 parts of nano metal and 0.1-15 parts of coupling agent.
9. The process for the preparation of the polyester material according to any of claims 1 to 8, characterized in that it comprises the following steps:
the polyester material is prepared by mixing, extruding, granulating and molding the components.
10. Use of the polyester material according to any one of claims 1 to 8 for the preparation of medical devices, food packaging or sanitary articles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404279.1A CN112646335A (en) | 2020-12-04 | 2020-12-04 | Tough polyester material and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404279.1A CN112646335A (en) | 2020-12-04 | 2020-12-04 | Tough polyester material and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN112646335A true CN112646335A (en) | 2021-04-13 |
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| CN202011404279.1A Pending CN112646335A (en) | 2020-12-04 | 2020-12-04 | Tough polyester material and preparation method and application thereof |
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| CN (1) | CN112646335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959933A (en) * | 2022-07-08 | 2022-08-30 | 北京大学口腔医学院 | Electroactive antibacterial dental floss and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779981A (en) * | 2016-08-31 | 2018-03-09 | 董波 | A kind of cross abnormal shape copper anti-bacterial fibre |
| CN108410151A (en) * | 2018-04-17 | 2018-08-17 | 合肥金同维低温科技有限公司 | A kind of degradable packaging film and preparation method thereof with antibacterial functions |
| CN109797450A (en) * | 2019-01-25 | 2019-05-24 | 浙江理工大学 | A kind of catalysis composite antibacterial fibre and its preparation method and application |
| CN110527119A (en) * | 2019-09-06 | 2019-12-03 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of biodegradable plastic/nanometer silver composite film and the preparation method and application thereof |
-
2020
- 2020-12-04 CN CN202011404279.1A patent/CN112646335A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779981A (en) * | 2016-08-31 | 2018-03-09 | 董波 | A kind of cross abnormal shape copper anti-bacterial fibre |
| CN108410151A (en) * | 2018-04-17 | 2018-08-17 | 合肥金同维低温科技有限公司 | A kind of degradable packaging film and preparation method thereof with antibacterial functions |
| CN109797450A (en) * | 2019-01-25 | 2019-05-24 | 浙江理工大学 | A kind of catalysis composite antibacterial fibre and its preparation method and application |
| CN110527119A (en) * | 2019-09-06 | 2019-12-03 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of biodegradable plastic/nanometer silver composite film and the preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 汪传生等主编: "《工程材料及应用》", 西安电子科技大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959933A (en) * | 2022-07-08 | 2022-08-30 | 北京大学口腔医学院 | Electroactive antibacterial dental floss and preparation method thereof |
| CN114959933B (en) * | 2022-07-08 | 2023-08-15 | 北京大学口腔医学院 | Electroactive antibacterial dental floss and preparation method thereof |
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Application publication date: 20210413 |