CN112876828A - Degradable electronic film and preparation method thereof - Google Patents
Degradable electronic film and preparation method thereof Download PDFInfo
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- CN112876828A CN112876828A CN202110196277.6A CN202110196277A CN112876828A CN 112876828 A CN112876828 A CN 112876828A CN 202110196277 A CN202110196277 A CN 202110196277A CN 112876828 A CN112876828 A CN 112876828A
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- 238000002360 preparation method Methods 0.000 title abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 36
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 27
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 27
- 239000004626 polylactic acid Substances 0.000 claims abstract description 26
- IHLWCCXTLOKDTO-UHFFFAOYSA-N 2,6-dioxabicyclo[3.1.0]hexa-1(5),3-diene Chemical compound C1=COC2=C1O2 IHLWCCXTLOKDTO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007849 furan resin Substances 0.000 claims abstract description 16
- 239000001103 potassium chloride Substances 0.000 claims abstract description 14
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 14
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims abstract description 13
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims abstract description 13
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 9
- 239000004677 Nylon Substances 0.000 claims abstract description 8
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 8
- 229920001778 nylon Polymers 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 25
- 229910002804 graphite Inorganic materials 0.000 claims description 21
- 239000010439 graphite Substances 0.000 claims description 21
- 239000008187 granular material Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 229920002292 Nylon 6 Polymers 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000010096 film blowing Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 8
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 8
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000000071 blow moulding Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- FPXVXEIZGKLUIX-UHFFFAOYSA-M ethanol;hexadecyl(trimethyl)azanium;bromide Chemical compound [Br-].CCO.CCCCCCCCCCCCCCCC[N+](C)(C)C FPXVXEIZGKLUIX-UHFFFAOYSA-M 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims description 4
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical group CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 claims description 4
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 claims description 4
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims description 4
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims description 4
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical group C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 claims description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical group OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- DYUMLJSJISTVPV-UHFFFAOYSA-N phenyl propanoate Chemical compound CCC(=O)OC1=CC=CC=C1 DYUMLJSJISTVPV-UHFFFAOYSA-N 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 229940049964 oleate Drugs 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 239000003017 thermal stabilizer Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
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- 230000005611 electricity Effects 0.000 abstract description 2
- 229920006280 packaging film Polymers 0.000 abstract description 2
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- 239000000243 solution Substances 0.000 description 9
- -1 Lewis acid potassium chloride Chemical class 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
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- AOJJSUZBOXZQNB-VTZDEGQISA-N 4'-epidoxorubicin Chemical group O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-VTZDEGQISA-N 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- CZMRCDWAGMRECN-UHFFFAOYSA-N Rohrzucker Natural products OCC1OC(CO)(OC2OC(CO)C(O)C(O)C2O)C(O)C1O CZMRCDWAGMRECN-UHFFFAOYSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 125000005456 glyceride group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
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- 238000009987 spinning Methods 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/001—Conductive additives
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- C08K2201/011—Nanostructured additives
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
- C08K3/16—Halogen-containing compounds
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- 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
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- C08K5/14—Peroxides
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- C08K5/20—Carboxylic acid amides
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
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Abstract
The invention discloses a degradable electronic film and a preparation method thereof, wherein the degradable electronic film is prepared from the following raw materials: 40-60 parts of polylactic acid, 4-8 parts of epoxy furan resin, 62-3 parts of nylon, 0.06-0.09 part of potassium chloride, 0.3-0.7 part of modified graphite, 0.005-0.008 part of dicumyl peroxide, 0.5-1 part of ethylene bis stearamide, 0.1-0.5 part of erucamide, 4-10 parts of plasticizer, 0.2-0.6 part of heat stabilizer and 0.2-0.6 part of antioxidant. The degradable electronic film can be completely biodegraded, can well replace materials such as PE, PP, PVC and the like, is applied to electronic product packaging, has the antistatic property, can effectively eliminate the damage of electronic equipment caused by static electricity, is simple in use process, low in price, environment-friendly and practical as the electronic product packaging film, and has good economic and social benefits.
Description
Technical Field
The invention belongs to the technical field of high polymer film materials, and particularly relates to a degradable electronic film and a preparation method thereof.
Background
Environmental problems caused by the widespread use of plastic products, particularly plastic film products, and the increasing shortage of petroleum energy have attracted extensive attention worldwide. Therefore, the development and use of biomass resources and completely biodegradable polymer film materials to replace petroleum-based plastics have become a hot spot of current research.
The polylactic acid is a polymer obtained by polymerizing lactic acid serving as a main raw material, the raw material source is sufficient and can be regenerated, the production process of the polylactic acid is pollution-free, and the product can be biodegraded to realize circulation in nature, so that the polylactic acid is an ideal green high polymer material. Polylactic acid has good thermal stability and good solvent resistance, can be processed in various modes, such as extrusion, spinning, biaxial stretching and injection blow molding, and products prepared from the polylactic acid can be biodegraded, have good biocompatibility, glossiness, transparency, hand feeling and heat resistance, and have certain antibacterial property, flame retardance and ultraviolet resistance, so the polylactic acid has wide application. However, the toughness of polylactic acid is poor, which limits the application of polylactic acid, while the traditional modified blending is expected to improve the toughness of materials, the compatibility among materials is difficult, and the simple physical blending modification effect is not obvious.
Meanwhile, in the aspect of electronic film products, in addition to the traditional film strength such as stretching and impact, the antistatic performance is also important, various electronic components are easy to damage or explode due to electrostatic aggregation, and other serious consequences are serious.
Disclosure of Invention
The invention aims to make up the defects of the prior art and provides a degradable electronic film and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
a degradable electronic film is prepared from the following raw materials: 40-60 parts of polylactic acid, 4-8 parts of epoxy furan resin, 62-3 parts of nylon, 0.06-0.09 part of potassium chloride, 0.3-0.7 part of modified graphite, 0.005-0.008 part of dicumyl peroxide, 0.5-1 part of ethylene bis stearamide, 0.1-0.5 part of erucamide, 4-10 parts of plasticizer, 0.2-0.6 part of heat stabilizer and 0.2-0.6 part of antioxidant.
Preferably, the degradable electronic film is prepared from the following raw materials: 50 parts of polylactic acid, 6 parts of epoxy furan resin, 62.5 parts of nylon, 0.07 part of potassium chloride, 0.5 part of modified graphite, 0.006 part of dicumyl peroxide, 0.8 part of ethylene bis stearamide, 0.3 part of erucamide, 7 parts of plasticizer, 0.4 part of heat stabilizer and 0.4 part of antioxidant.
Further, the preparation method of the modified graphite comprises the following steps: taking the expandable graphite, expanding the expandable graphite at 850-950 ℃ for 30-60 seconds, and taking out the expandable graphite, wherein the mass ratio of the obtained expanded graphite to 75% ethanol solution is 1: (50-100), stirring for 4-6 hours at 55-65 ℃, adding a 5% hexadecyl trimethyl ammonium bromide ethanol solution with the mass ratio of 2% in the stirring period, performing suction filtration and cleaning after the stirring is finished, adding a titanate coupling agent with the mass ratio of 1% in the obtained graphite, stirring for 5-10 minutes, and performing vacuum drying after the stirring is finished to obtain the modified graphite.
Further, the plasticizer is selected from any one of acetyl tributyl citrate, diacetyl epoxy glycerol vegetable oleate and glycerol monostearate.
Further, the heat stabilizer is dibutyltin dilaurate.
Further, the antioxidant is pentaerythritol tetrakis (3, 5-di-tert-butyl-4-hydroxy) phenylpropionate.
A preparation method of the degradable electronic film comprises the following steps:
(1) feeding polylactic acid, epoxy furan resin and an antioxidant into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material onto a granulator for granulation to obtain granules 1;
(2) feeding nylon 6 and potassium chloride into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material on a granulator for granulation to obtain granules 2;
(3) mechanically blending the granules 1, the granules 2, the modified graphite, the dicumyl peroxide, the ethylene bis-stearic acid amide, the erucamide, the plasticizer and the heat stabilizer, and performing melt extrusion on the obtained mixture by a double-screw extruder to obtain a resin material;
(4) and (3) carrying out blow molding on the obtained resin material by a film blowing machine to form a film, thus obtaining the resin.
Further, the set temperature of the twin-screw extruder in the step 3 is as follows: a first area: 130 ℃ and 140 ℃, and the second zone: 150 ℃ and 160 ℃, and a three-zone: 160 ℃ and 170 ℃, four zones: 165-175 ℃, five zones: 165-175 ℃ and six zones: 165-175 ℃, seven zones: 170 ℃ and 180 ℃, eight zones: 170 ℃ and 180 ℃, screw rotation speed: 150 and 300 rpm.
Further, the set temperature of the film blowing machine in the step 4 is as follows: a first area: 145-150 ℃, two zones: 150 ℃ and 160 ℃, and a three-zone: 155 ℃ and 165 ℃, four zones: 160-165 ℃, five zones: 165 ℃ and 170 ℃, the traction speed is 3-7m/min, and the blow-up ratio is 2-6.
Use of a degradable electronic film as described above for electronic product packaging.
The invention has the advantages that:
the polylactic acid is used as a main raw material, is produced by renewable resources such as corn, beet and cane sugar, has good biodegradability and has no pollution to the environment.
The low-melting-point nylon 6 is formed by adding nylon 6 and Lewis acid potassium chloride and performing melt extrusion, and the toughness of the polylactic acid is reinforced by utilizing the toughness, wear resistance, impact resistance and heat resistance of the low-melting-point nylon 6.
In order to improve the compatibility of the polylactic acid and the nylon 6, the epoxy furan resin is also used, and through an epoxy structure and a furan rigid ring structure contained in the epoxy furan resin, the epoxy furan resin can perform a grafting reaction with a terminal carboxyl group in a polylactic acid molecular chain and a terminal amino group in a nylon 6 molecular chain in a melt extrusion process to enhance the interaction force between the two phases, so that the compatibility between the polylactic acid molecular chain and the nylon 6 molecular chain is improved, and the tensile strength and the impact strength of the whole system are further improved.
The modified graphite component is added into the raw materials, and the polylactic acid polymer material has excellent conductivity and nano effect, can realize low filling and high conductivity, and has ideal antistatic performance.
The degradable electronic film can be completely biodegraded, can well replace materials such as PE, PP, PVC and the like, is applied to electronic product packaging, has the antistatic property, can effectively eliminate the damage of electronic equipment caused by static electricity, is simple in use process, low in price, environment-friendly and practical as the electronic product packaging film, and has good economic and social benefits.
Detailed Description
The technical scheme of the invention is further explained by combining the specific examples as follows:
example 1
A degradable electronic film is prepared from the following raw materials: 50 parts of polylactic acid, 6 parts of epoxy furan resin, 62.5 parts of nylon, 0.07 part of potassium chloride, 0.5 part of modified graphite, 0.006 part of dicumyl peroxide, 0.8 part of ethylene bis stearamide, 0.3 part of erucamide, 7 parts of acetyl tributyl citrate, 0.4 part of dibutyltin dilaurate and 0.4 part of tetra (3, 5-di-tert-butyl-4-hydroxy) phenylpropionic acid pentaerythritol ester.
The preparation method of the modified graphite comprises the following steps: taking expandable graphite, expanding for 45 seconds at 900 ℃, taking out, and mixing the obtained expandable graphite with a 75% ethanol solution according to a mass ratio of 1: 80 and stirring for 5 hours at 60 ℃, adding a 5% hexadecyl trimethyl ammonium bromide ethanol solution with the mass ratio of 2% in the stirring period, performing suction filtration and cleaning after the stirring is finished, adding a titanate coupling agent with the mass ratio of 1% in the obtained graphite, stirring for 8 minutes, and performing vacuum drying after the stirring is finished to obtain the modified graphite.
A preparation method of the degradable electronic film comprises the following steps:
(1) feeding polylactic acid, epoxy furan resin and tetra (3, 5-di-tert-butyl-4-hydroxy) phenylpropionic acid pentaerythritol ester into a high-speed mixer for uniform mixing, extruding the mixed material on a double-screw extruder, and drawing the material to a granulator for granulation to obtain granules 1;
(2) feeding nylon 6 and potassium chloride into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material on a granulator for granulation to obtain granules 2;
(3) mechanically blending the granular material 1, the granular material 2, the modified graphite, dicumyl peroxide, ethylene bis-stearamide, erucamide, acetyl tributyl citrate and dibutyltin dilaurate, and performing melt extrusion on the obtained mixture by using a double-screw extruder to obtain a resin material, wherein the set temperature of the double-screw extruder is as follows: a first area: 135 ℃, zone two: 155 ℃, three zones: 165 ℃, four zones: 170 ℃, five zones: 170 ℃, six zones: 170 ℃, seven zones: 175 ℃, eight zones: 175 ℃, screw speed: 240 rpm;
(4) and (3) carrying out blow molding on the obtained resin material through a film blowing machine to form a film, wherein the set temperature of the film blowing machine is as follows: a first area: 147 ℃, zone two: 155 ℃, three zones: 160 ℃, four zones: 163 ℃, five zones: the drawing speed is 5m/min at 167 ℃, and the blowing ratio is 4.
Example 2
A degradable electronic film is prepared from the following raw materials: 40 parts of polylactic acid, 4 parts of epoxy furan resin, 62 parts of nylon, 0.06 part of potassium chloride, 0.3 part of modified graphite, 0.005 part of dicumyl peroxide, 0.5 part of ethylene bis stearamide, 0.1 part of erucamide, 4 parts of diacetyl epoxy vegetable olein, 0.2 part of dibutyltin dilaurate and 0.2 part of tetra (3, 5-di-tert-butyl-4-hydroxy) phenylpropionic acid pentaerythritol ester.
The preparation method of the modified graphite comprises the following steps: taking expandable graphite, expanding for 60 seconds at 850 ℃, taking out, and mixing the obtained expanded graphite with a 75% ethanol solution according to a mass ratio of 1: and (3) stirring for 6 hours at 55 ℃ after 50 mixing, adding a 5% hexadecyl trimethyl ammonium bromide ethanol solution with the mass ratio of 2% in the stirring period, performing suction filtration and cleaning after the stirring is finished, adding a titanate coupling agent with the mass ratio of 1% in the obtained graphite, stirring for 5 minutes, and performing vacuum drying after the stirring is finished to obtain the modified graphite.
A preparation method of the degradable electronic film comprises the following steps:
(1) feeding polylactic acid, epoxy furan resin and tetra (3, 5-di-tert-butyl-4-hydroxy) phenylpropionic acid pentaerythritol ester into a high-speed mixer for uniform mixing, extruding the mixed material on a double-screw extruder, and drawing the material to a granulator for granulation to obtain granules 1;
(2) feeding nylon 6 and potassium chloride into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material on a granulator for granulation to obtain granules 2;
(3) mechanically blending the granular material 1, the granular material 2, the modified graphite, dicumyl peroxide, ethylene bis-stearic acid amide, erucamide, diacetyl epoxy vegetable oil acid glyceride and dibutyltin dilaurate, and performing melt extrusion on the obtained mixture by using a double-screw extruder to obtain a resin material, wherein the set temperature of the double-screw extruder is as follows: a first area: 130 ℃, two zones: 150 ℃, three zones: 160 ℃, four zones: 165 ℃, five zones: 165 ℃, six zones: 165 ℃, seven zones: 170 ℃, eight zones: 170 ℃, screw speed: 150 rpm;
(4) and (3) carrying out blow molding on the obtained resin material through a film blowing machine to form a film, wherein the set temperature of the film blowing machine is as follows: a first area: 145 ℃, zone two: 150 ℃, three zones: 155 ℃, four zones: 160 ℃, five zones: 165 ℃, the traction speed is 3m/min, and the blow-up ratio is 2.
Example 3
A degradable electronic film is prepared from the following raw materials: 60 parts of polylactic acid, 8 parts of epoxy furan resin, 63 parts of nylon, 0.09 part of potassium chloride, 0.7 part of modified graphite, 0.008 part of dicumyl peroxide, 1 part of ethylene bis stearamide, 0.5 part of erucamide, 10 parts of glycerol monostearate, 0.6 part of dibutyltin dilaurate and 0.6 part of pentaerythritol tetrakis (3, 5-di-tert-butyl-4-hydroxy) phenylpropionate.
The preparation method of the modified graphite comprises the following steps: taking expandable graphite, expanding the expandable graphite at 950 ℃ for 30 seconds, taking out the expandable graphite, and mixing the obtained expanded graphite with a 75% ethanol solution according to a mass ratio of 1: 100, stirring for 4 hours at 65 ℃, adding a 5% hexadecyl trimethyl ammonium bromide ethanol solution with the mass ratio of 2% in the stirring period, performing suction filtration and cleaning after the stirring is finished, adding a titanate coupling agent with the mass ratio of 1% in the obtained graphite, stirring for 10 minutes, and performing vacuum drying after the stirring is finished to obtain the modified graphite.
A preparation method of the degradable electronic film comprises the following steps:
(1) feeding polylactic acid, epoxy furan resin and tetra (3, 5-di-tert-butyl-4-hydroxy) phenylpropionic acid pentaerythritol ester into a high-speed mixer for uniform mixing, extruding the mixed material on a double-screw extruder, and drawing the material to a granulator for granulation to obtain granules 1;
(2) feeding nylon 6 and potassium chloride into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material on a granulator for granulation to obtain granules 2;
(3) mechanically blending the granular material 1, the granular material 2, the modified graphite, the dicumyl peroxide, the ethylene bis-stearic acid amide, the erucamide, the glycerol monostearate and the dibutyltin dilaurate, and performing melt extrusion on the obtained mixture by using a double-screw extruder to obtain a resin material, wherein the set temperature of the double-screw extruder is as follows: a first area: 140 ℃, zone two: 160 ℃, three zones: 170 ℃, four zones: 175 ℃, five zones: 175 ℃, six zones: 175 ℃, seven zones: 180 ℃, eight zones: 180 ℃, screw speed: 300 rpm;
(4) and (3) carrying out blow molding on the obtained resin material through a film blowing machine to form a film, wherein the set temperature of the film blowing machine is as follows: a first area: 150 ℃, zone two: 160 ℃, three zones: 165 ℃, four zones: 165 ℃, five zones: the drawing speed is 7m/min and the blowing ratio is 6 at 170 ℃.
The film products obtained in examples 1, 2 and 3 were tested to have a tensile strength of 42MPa or more, an elongation at break of 360% or more, and a surface resistivity of 3.0X 10 or less7Omega cm, and has good antistatic performance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A degradable electronic film is characterized by being prepared from the following raw materials: 40-60 parts of polylactic acid, 4-8 parts of epoxy furan resin, 62-3 parts of nylon, 0.06-0.09 part of potassium chloride, 0.3-0.7 part of modified graphite, 0.005-0.008 part of dicumyl peroxide, 0.5-1 part of ethylene bis stearamide, 0.1-0.5 part of erucamide, 4-10 parts of plasticizer, 0.2-0.6 part of heat stabilizer and 0.2-0.6 part of antioxidant.
2. The degradable electronic film of claim 1, made from raw materials comprising: 50 parts of polylactic acid, 6 parts of epoxy furan resin, 62.5 parts of nylon, 0.07 part of potassium chloride, 0.5 part of modified graphite, 0.006 part of dicumyl peroxide, 0.8 part of ethylene bis stearamide, 0.3 part of erucamide, 7 parts of plasticizer, 0.4 part of heat stabilizer and 0.4 part of antioxidant.
3. The degradable electronic film of claim 1, wherein the modified graphite is prepared by the following steps: taking the expandable graphite, expanding the expandable graphite at 850-950 ℃ for 30-60 seconds, and taking out the expandable graphite, wherein the mass ratio of the obtained expanded graphite to 75% ethanol solution is 1: (50-100), stirring for 4-6 hours at 55-65 ℃, adding a 5% hexadecyl trimethyl ammonium bromide ethanol solution with the mass ratio of 2% in the stirring period, performing suction filtration and cleaning after the stirring is finished, adding a titanate coupling agent with the mass ratio of 1% in the obtained graphite, stirring for 5-10 minutes, and performing vacuum drying after the stirring is finished to obtain the modified graphite.
4. The degradable electronic film of claim 1, wherein the plasticizer is selected from any one of acetyl tributyl citrate, diacetyl epoxy glycerol vegetable oleate, and glycerol monostearate.
5. The degradable electronic film of claim 1, wherein the thermal stabilizer is dibutyltin dilaurate.
6. The degradable electronic film of claim 1, wherein the antioxidant is pentaerythritol tetrakis (3, 5-di-tert-butyl-4-hydroxy) phenylpropionate.
7. A method of preparing a degradable electronic film according to any one of claims 1 to 5, comprising the steps of:
(1) feeding polylactic acid, epoxy furan resin and an antioxidant into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material onto a granulator for granulation to obtain granules 1;
(2) feeding nylon 6 and potassium chloride into a high-speed mixer, uniformly mixing, extruding the mixed material on a double-screw extruder, and drawing the extruded material on a granulator for granulation to obtain granules 2;
(3) mechanically blending the granules 1, the granules 2, the modified graphite, the dicumyl peroxide, the ethylene bis-stearic acid amide, the erucamide, the plasticizer and the heat stabilizer, and performing melt extrusion on the obtained mixture by a double-screw extruder to obtain a resin material;
(4) and (3) carrying out blow molding on the obtained resin material by a film blowing machine to form a film, thus obtaining the resin.
8. The method for preparing the degradable electronic film according to claim 7, wherein the set temperature of the twin-screw extruder in the step 3 is as follows: a first area: 130 ℃ and 140 ℃, and the second zone: 150 ℃ and 160 ℃, and a three-zone: 160 ℃ and 170 ℃, four zones: 165-175 ℃, five zones: 165-175 ℃ and six zones: 165-175 ℃, seven zones: 170 ℃ and 180 ℃, eight zones: 170 ℃ and 180 ℃, screw rotation speed: 150 and 300 rpm.
9. The method for preparing the degradable electronic film according to claim 7, wherein the set temperature of the film blowing machine in the step 4 is as follows: a first area: 145-150 ℃, two zones: 150 ℃ and 160 ℃, and a three-zone: 155 ℃ and 165 ℃, four zones: 160-165 ℃, five zones: 165 ℃ and 170 ℃, the traction speed is 3-7m/min, and the blow-up ratio is 2-6.
10. Use of the degradable electronic film of claim 1 for packaging electronic products.
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CN101875763A (en) * | 2010-06-22 | 2010-11-03 | 中国科学院长春应用化学研究所 | High-toughness polylactic acid resin and preparation method thereof |
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CN101875763A (en) * | 2010-06-22 | 2010-11-03 | 中国科学院长春应用化学研究所 | High-toughness polylactic acid resin and preparation method thereof |
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CN115403909B (en) * | 2022-10-17 | 2023-11-03 | 安徽双津实业有限公司 | Biodegradable film and preparation method thereof |
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