CN112538244A - Anti-aging imitation leather plastic meal bag and preparation process thereof - Google Patents
Anti-aging imitation leather plastic meal bag and preparation process thereof Download PDFInfo
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- CN112538244A CN112538244A CN202011392437.6A CN202011392437A CN112538244A CN 112538244 A CN112538244 A CN 112538244A CN 202011392437 A CN202011392437 A CN 202011392437A CN 112538244 A CN112538244 A CN 112538244A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 65
- 239000004033 plastic Substances 0.000 title claims abstract description 65
- 235000012054 meals Nutrition 0.000 title claims abstract description 60
- 239000010985 leather Substances 0.000 title claims abstract description 47
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 229920002261 Corn starch Polymers 0.000 claims abstract description 40
- 239000008120 corn starch Substances 0.000 claims abstract description 40
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 239000008187 granular material Substances 0.000 claims abstract description 22
- 239000011265 semifinished product Substances 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 20
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 17
- 239000004626 polylactic acid Substances 0.000 claims abstract description 17
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920006238 degradable plastic Polymers 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- 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
- C08J2367/06—Unsaturated polyesters
-
- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an anti-aging imitation leather plastic meal bag. The invention discloses a preparation process of the anti-aging imitation leather plastic meal bag, which comprises the following steps: mixing corn starch and polylactic acid, heating to 105-120 ℃ under the protection of nitrogen, adding methyltriethoxysilane, and stirring for 5-15min to obtain pretreated corn starch; adding unsaturated polyester resin, pretreated corn starch, calcium carbonate, glass fiber and zinc stearate into a high-shear type stirrer, and uniformly stirring at 60-70 ℃ to obtain a premix; feeding the premix into a double-screw extruder, melting and extruding at the temperature of 120-150 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, curing after filling the mould for 30-120s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag; and spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Description
Technical Field
The invention relates to the technical field of food packages, in particular to an anti-aging imitation leather plastic food package and a preparation process thereof.
Background
The plastic is another excellent resin variety developed after nylon, has excellent comprehensive performance, and the imitation leather meal bag made of the plastic has the characteristics of light weight, bright and quiet surface, good chemical resistance, excellent chemical stability, electrical insulation, no toxicity and the like, gradually replaces iron tableware, becomes common tableware for people, and is widely used due to the convenience in carrying.
Plastics are a general durable material, but the pollution that plastics caused is also very afraid, and white pollution has caused irreversible damage to the environment, therefore present degradable plastics goods have always been the hot spot of research and development at present, and the degradable macromolecular material that present preparation degradable plastics used is polycaprolactone, polylactic acid, olybuthylenesuccinate etc. although degradable, the imitation leather plastics meal package ageing resistance that nevertheless prepares is worsened, and life is short, awaits the opportune moment and waits to solve.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an anti-aging imitation leather plastic meal bag and a preparation process thereof.
The invention provides a preparation process of an anti-aging imitation leather plastic meal bag, which comprises the following steps:
s1, mixing the corn starch and the polylactic acid, heating to 105-120 ℃ under the protection of nitrogen, adding the methyltriethoxysilane, and stirring for 5-15min to obtain the pretreated corn starch;
s2, adding unsaturated polyester resin, pretreated corn starch, calcium carbonate, glass fiber and zinc stearate into a high shear type stirrer, and uniformly stirring at 60-70 ℃ to obtain a premix;
s3, feeding the premix into a double-screw extruder, melting and extruding at the temperature of 120-150 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, curing after filling the mould for 30-120s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Preferably, in S1, the mass ratio of corn starch, polylactic acid and methyl triethoxysilane is 10-30: 5-15: 1-2.
Preferably, in S1, the mass ratio of corn starch, polylactic acid and methyl triethoxysilane is 15-25: 8-12: 1.3-1.7.
Preferably, in S2, the mass ratio of the unsaturated polyester resin, the pretreated corn starch, the calcium carbonate, the glass fiber and the zinc stearate is 100: 10-30: 5-15: 10-40: 1-3.
Preferably, in S2, the mass ratio of the unsaturated polyester resin, the pretreated corn starch, the calcium carbonate, the glass fiber and the zinc stearate is 100: 15-25: 8-12: 20-30: 1.5-2.5.
Preferably, in S3, the melt extrusion temperature is 130-140 ℃.
Preferably, in S3, the granules are fed into a preheated steel grinding tool, and an upper die and a lower die of the die are integrated, wherein the temperature of the upper die is 130-140 ℃ and the temperature of the lower die is 120-125 ℃.
Preferably, in S3, the curing time is 60-90S.
Preferably, in S3, the wall thickness of the semi-finished plastic meal bag is 3-4 mm.
The invention provides an anti-aging imitation leather plastic meal packet which is prepared by adopting the preparation process of the anti-aging imitation leather plastic meal packet.
According to the invention, the corn starch and the polylactic acid are compounded, and then the methyl triethoxysilane is used for bridging, so that the problem of interface compatibility between the corn starch and the polylactic acid is greatly improved, the product has high bonding strength, a macromolecular structure product is formed and is combined with the unsaturated polyester resin, the product has extremely excellent mechanical property and good aging resistance, and meanwhile, the product is nontoxic and odorless and is beneficial to human health.
The anti-aging imitation leather plastic meal bag obtained by the invention has good mechanical properties, wherein the elongation rate reaches 2.8%, the tensile strength reaches more than 260MPa, the bending strength reaches more than 295MPa, the thermal deformation temperature reaches more than 142 ℃, the anti-aging property reaches more than 1000 hours, no abnormity exists, and the notch impact strength reaches 41.5KJ/m2Above, molten refers toThe number reaches 13.5g/10min, the performances are excellent, and the invention has positive significance for treating plastic pollution, protecting environment and the like.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 10kg of corn starch and 15kg of polylactic acid, heating to 105 ℃ under the protection of nitrogen, adding 2kg of methyltriethoxysilane, and stirring for 5min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 30kg of pretreated corn starch, 5kg of calcium carbonate, 40kg of glass fiber and 1kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 70 ℃ and the stirring speed of 1000r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, performing melt extrusion at 150 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 130 ℃, the temperature of the lower die is 125 ℃, curing after filling the die for 30s, demolding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 4 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 2
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 30kg of corn starch and 5kg of polylactic acid, heating to 120 ℃ under the protection of nitrogen, adding 1kg of methyltriethoxysilane, and stirring for 15min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 10kg of pretreated corn starch, 15kg of calcium carbonate, 10kg of glass fiber and 3kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 60 ℃ and the stirring speed of 2000r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, melting and extruding at 120 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 140 ℃, the temperature of the lower die is 120 ℃, curing after filling the die for 120s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 3
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 15kg of corn starch and 12kg of polylactic acid, heating to 110 ℃ under the protection of nitrogen, adding 1.7kg of methyltriethoxysilane, and stirring for 8min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 25kg of pretreated corn starch, 8kg of calcium carbonate, 30kg of glass fiber and 1.5kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 66 ℃ and the stirring speed of 1200r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, melting and extruding at 140 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 133 ℃, the temperature of the lower die is 124 ℃, curing after filling the die for 60s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3.5 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 4
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 25kg of corn starch and 8kg of polylactic acid, heating to 115 ℃ under the protection of nitrogen, adding 1.3kg of methyltriethoxysilane, and stirring for 12min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 15kg of pretreated corn starch, 12kg of calcium carbonate, 20kg of glass fiber and 2.5kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 64 ℃ and the stirring speed of 1800r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, performing melt extrusion at 130 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 137 ℃, the temperature of the lower die is 122 ℃, curing after filling the die for 90s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3.5 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 5
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 18kg of corn starch and 11kg of polylactic acid, heating to 111 ℃ under the protection of nitrogen, adding 1.6kg of methyltriethoxysilane, and stirring for 9min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 22kg of pretreated corn starch, 9kg of calcium carbonate, 28kg of glass fiber and 1.8kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 65.5 ℃ and the stirring speed of 1400r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, performing melt extrusion at 137 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 134 ℃, the temperature of the lower die is 123.5 ℃, curing after filling the die for 70s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3.5 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 6
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 22kg of corn starch and 9kg of polylactic acid, heating to 113 ℃ under the protection of nitrogen, adding 1.4kg of methyltriethoxysilane, and stirring for 11min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 18kg of pretreated corn starch, 11kg of calcium carbonate, 22kg of glass fiber and 2.2kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 64.5 ℃ and 1600r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, performing melt extrusion at 133 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 136 ℃, the temperature of the lower die is 122.5 ℃, curing after filling the die for 80s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3.5 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
Example 7
A preparation process of an anti-aging imitation leather plastic meal bag comprises the following steps:
s1, mixing 20kg of corn starch and 10kg of polylactic acid, heating to 112 ℃ under the protection of nitrogen, adding 1.5kg of methyltriethoxysilane, and stirring for 10min to obtain pretreated corn starch;
s2, adding 100kg of unsaturated polyester resin, 20kg of pretreated corn starch, 10kg of calcium carbonate, 25kg of glass fiber and 2kg of zinc stearate into a high shear type stirrer, and uniformly stirring at 65 ℃ and the stirring speed of 1500r/min to obtain a premix;
s3, feeding the premix into a double-screw extruder, performing melt extrusion at 135 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, combining an upper die and a lower die of the die into a whole, wherein the temperature of the upper die is 135 ℃, the temperature of the lower die is 123 ℃, curing after filling the die for 75s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag with the wall thickness of 3.5 mm;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A preparation process of an anti-aging imitation leather plastic meal bag is characterized by comprising the following steps:
s1, mixing the corn starch and the polylactic acid, heating to 105-120 ℃ under the protection of nitrogen, adding the methyltriethoxysilane, and stirring for 5-15min to obtain the pretreated corn starch;
s2, adding unsaturated polyester resin, pretreated corn starch, calcium carbonate, glass fiber and zinc stearate into a high shear type stirrer, and uniformly stirring at 60-70 ℃ to obtain a premix;
s3, feeding the premix into a double-screw extruder, melting and extruding at the temperature of 120-150 ℃, drying, and crushing to obtain granules; feeding the granules into a preheated steel grinding tool, curing after filling the mould for 30-120s, demoulding, and sterilizing by adopting ultraviolet rays to obtain a semi-finished product of the plastic meal bag;
s4, spraying the imitation leather powder coating on the outer surface of the semi-finished product of the plastic meal packet, curing and drying to obtain the anti-aging imitation leather plastic meal packet.
2. The preparation process of the anti-aging skin-imitated plastic meal bag according to claim 1, wherein in S1, the mass ratio of corn starch, polylactic acid and methyl triethoxysilane is 10-30: 5-15: 1-2.
3. The preparation process of the anti-aging skin-imitated plastic meal bag according to claim 1, wherein in S1, the mass ratio of corn starch, polylactic acid and methyl triethoxysilane is 15-25: 8-12: 1.3-1.7.
4. The preparation process of the anti-aging imitation leather plastic meal package according to claim 1, wherein in S2, the mass ratio of the unsaturated polyester resin, the pretreated corn starch, the calcium carbonate, the glass fiber and the zinc stearate is 100: 10-30: 5-15: 10-40: 1-3.
5. The preparation process of the anti-aging imitation leather plastic meal package according to claim 1, wherein in S2, the mass ratio of the unsaturated polyester resin, the pretreated corn starch, the calcium carbonate, the glass fiber and the zinc stearate is 100: 15-25: 8-12: 20-30: 1.5-2.5.
6. The process for preparing the aging-resistant imitation leather plastic meal package as claimed in claim 1, wherein in S3, the melt extrusion temperature is 130-140 ℃.
7. The process of claim 1, wherein in step S3, the granules are fed into a preheated steel grinding tool, and the upper mold and the lower mold of the mold are combined into a whole, wherein the temperature of the upper mold is 130-.
8. The process for preparing the aging-resistant imitation leather plastic meal package according to claim 1, wherein in S3, the curing time is 60-90S.
9. The process for preparing the aging-resistant imitation leather plastic meal bag according to claim 1, wherein in S3, the wall thickness of the semi-finished product of the plastic meal bag is 3-4 mm.
10. An anti-aging imitation leather plastic meal bag, which is characterized by being prepared by the preparation process of the anti-aging imitation leather plastic meal bag according to any one of claims 1 to 9.
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| CN202011392437.6A CN112538244A (en) | 2020-12-02 | 2020-12-02 | Anti-aging imitation leather plastic meal bag and preparation process thereof |
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2020
- 2020-12-02 CN CN202011392437.6A patent/CN112538244A/en active Pending
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| CN101519524A (en) * | 2009-03-23 | 2009-09-02 | 深圳市未名北科环保材料有限公司 | Material capable of completely biodegrading and preparation method thereof |
| CN104355567A (en) * | 2014-09-26 | 2015-02-18 | 金华万得福日用品有限公司 | Preparation methods for high-strength ceramic-like material and tableware made of high-strength ceramic-like material |
| CN107974039A (en) * | 2017-12-14 | 2018-05-01 | 滁州德铭塑胶有限公司 | A kind of smooth melamine resin plastic tableware preparation method in surface |
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