CN115073897B - Degradable plastic packaging material and preparation process thereof - Google Patents

Degradable plastic packaging material and preparation process thereof Download PDF

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CN115073897B
CN115073897B CN202210899712.6A CN202210899712A CN115073897B CN 115073897 B CN115073897 B CN 115073897B CN 202210899712 A CN202210899712 A CN 202210899712A CN 115073897 B CN115073897 B CN 115073897B
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chitosan
coupling agent
plastic packaging
packaging material
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CN115073897A (en
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王晓军
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Suzhou Yuanrui Packaging Co ltd
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Suzhou Yuanrui Packaging Co ltd
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    • 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
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable

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  • 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)
  • Biological Depolymerization Polymers (AREA)

Abstract

The invention relates to the field of C08L, in particular to a degradable plastic packaging material and a preparation process thereof, which adopt 80-120 parts of aliphatic polymer, 10-20 parts of plant starch, 15-25 parts of inorganic powder filler, 1-5 parts of chitosan and derivatives thereof and 1-5 parts of functional auxiliary agents, so that the provided product has excellent antibacterial property, flame retardant property, barrier property and degradability, is effectively applied to packaging of products in the fields of sanitary products, foods, electronic products and the like, and is biodegradable, safe and environment-friendly.

Description

Degradable plastic packaging material and preparation process thereof
Technical Field
The invention relates to the field of C08L, in particular to a degradable plastic packaging material and a preparation process thereof.
Background
Biodegradable plastics, which are a class of plastics whose properties meet the use requirements during storage and which degrade environmentally friendly substances after use under natural environmental conditions, are considered as one of the effective ways to solve the problem of plastic contamination.
However, the existing single degradable material has the problems of low thermal deformation temperature, single mechanical property and low storage stability of the product caused by over-high degradation rate of part of the material, and the large-scale industrial production application of the material is limited. Chinese patent CN 109438937A discloses an antibacterial PLA-based degradable food packaging material and a preparation method thereof, and specifically relates to the food packaging material obtained by mixing activated carbon loaded with nano titanium dioxide, polylactic acid, polyhydroxyalkanoate and plasticizer and tabletting, but the PLA has lower tensile strength, toughness and crystallization performance, and the mechanical property of the product needs to be improved. Chinese patent CN112252072 a discloses a degradable flame-retardant packaging material and a preparation method thereof, which uses resin, glass fiber, starch, cellulose and plasticizer and flame retardant as main raw materials, so that the provided product has certain degradability and flame retardant property, but the air barrier property and antibacterial property of the product are to be improved.
Therefore, the degradable plastic packaging material provided by the invention has excellent antibacterial property, flame retardant property, barrier property and degradability, is effectively applied to packaging of products in the fields of sanitary products, foods, electronic products and the like, and is biodegradable, safe and environment-friendly.
Disclosure of Invention
The invention provides a degradable plastic packaging material, which is prepared from the following raw materials in parts by weight: 80-120 parts of aliphatic polymer, 10-20 parts of plant starch, 15-25 parts of inorganic powder filler, 1-5 parts of chitosan and derivatives thereof, and 1-5 parts of functional auxiliary agent;
as a preferable technical scheme, the aliphatic polymer is at least one of Polyglycolide (PGA), polybutylene succinate (PBS), polylactic acid (PLA), polycaprolactone (PCL) and polypropylene carbonate (PPC); preferably, the aliphatic polymer is a combination of polyglycolide, polybutylene succinate, polypropylene carbonate; preferably, the mass ratio of the polyglycolide, the polybutylene succinate and the polypropylene carbonate is (0.1-1): (4-6): (3-5); the polybutylene succinate and the polypropylene carbonate are derived from Zhejiang Dajin new material science and technology Co. The polypropylene carbonate is derived from the New Material science and technology Co., ltd. The polyglycolide is derived from Shanghai Jizhui Biochemical technology Co.
The inventor finds that, based on the system of the invention, by adopting an aliphatic polymer combination of polyglycolide, polybutylene succinate and polypropylene carbonate, the mass ratio of the polyglycolide, the polybutylene succinate and the polypropylene carbonate is controlled to be (0.1-1): (4-6): (3-5) providing a degradable plastic packaging material having excellent tensile strength and gas barrier properties while allowing the provided product to degrade under natural environmental conditions after use. The inventors analyzed the cause may be: under the mass ratio, the poly (glycolide), the poly (butylene succinate) and the poly (propylene carbonate) realize good compatibility, the poly (glycolide) and the poly (propylene carbonate) cooperate to effectively improve the gas barrier property of the degradable plastic packaging material, and meanwhile, the poly (propylene carbonate) can effectively toughen the poly (glycolide) and the poly (butylene succinate), and under the synergistic effect of nano-scale inorganic powder, the crystallinity of the poly (butylene succinate) in the system is improved, so that the tensile property of the degradable plastic packaging material is effectively improved.
On the other hand, the polypropylene carbonate interacts with plant starch in the system, so that the degradation speed of the degradable plastic packaging material is effectively improved, but the storage stability of the product is reduced. The inventor unexpectedly discovers that 15-25 parts by weight of nano inorganic powder material is introduced into a system in the exploration process, and in the processing process, the blending of nano silicon dioxide, nano titanium dioxide and aliphatic polymers such as polypropylene carbonate, polyglycolide and polybutylene succinate reduces the molecular weight of the aliphatic polymers, balances the degradation speed of the degradable plastic packaging material to a certain extent, and avoids the problem of reduced storage stability of products caused by over-fast product introduction speed.
As a preferable technical scheme, the plant starch is one of corn starch, potato starch, sweet potato starch, sorghum starch, wheat starch and rice starch. The plant starch is corn starch.
As a preferable technical scheme, the inorganic powder filler is at least one of talcum powder, calcium carbonate, bentonite, diatomite, nano zirconium dioxide, nano silicon dioxide, nano titanium dioxide, silicon micropowder and nano zinc oxide; preferably, the inorganic powder material is a combination of calcium carbonate, nano silicon dioxide and nano titanium dioxide; preferably, the mass ratio of the calcium carbonate to the nano silicon dioxide to the nano titanium dioxide is (2-4): (3-5): (1-3); the particle sizes of the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are all 20-50nm, and the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are derived from Shanghai Michelia Biochemical technology Co.
Preferably, the chitosan and the derivatives thereof comprise chitosan and chitosan quaternary ammonium salt; preferably, the mass ratio of the chitosan to the chitosan quaternary ammonium salt is (1-3): (1-2); preferably, the deacetylation degree of the chitosan is more than or equal to 75%; the model of the chitosan is C299272, and is purchased from Shanghai Ala Biochemical technology Co., ltd; the substitution degree of the chitosan quaternary ammonium salt is 92-98%; the model of the chitosan quaternary ammonium salt is 850126, and the chitosan quaternary ammonium salt is derived from Shanghai Michelia Biochemical technology Co.
Based on the system, the high temperature resistance and mechanical property of the degradable plastic packaging material are effectively improved by introducing the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide with the particle size of 20-50nm, and the chitosan quaternary ammonium salt in the synergistic system, so that the product has excellent antibacterial property, can achieve 99.9% of antibacterial effect on escherichia coli and staphylococcus aureus, and has stable long-term antibacterial property.
Preferably, the functional auxiliary agent comprises a coupling agent, a lubricant, a plasticizer and a flame retardant; the mass ratio of the coupling agent, the lubricant, the plasticizer and the flame retardant is (0.1-0.5): (0.5-1): (0.8-1.2): (1-2).
As a preferable technical scheme, the coupling agent is a silane coupling agent or a titanate coupling agent; preferably, the coupling agent is a silane coupling agent. The silane coupling agent is selected from 3-aminopropyl trimethoxy silicon, 3-aminopropyl triethoxy silane and gamma-aminopropyl methyl diethoxy silane;
the lubricant is at least one of paraffin wax, polyethylene wax, oxidized polyethylene wax and ethylene bis-stearamide; preferably, the lubricant is ethylene bis-stearamide, which is sourced from Shanghai Hua Yi chemical auxiliary agent Co., ltd.
The plasticizer is one of epoxidized soybean oil, tributyl citrate, dioctyl sebacate and dibutyl sebacate. Preferably, the plasticizer is tributyl citrate, which is sourced from Shanghai Hua Yi chemical auxiliary agent Co., ltd.
The flame retardant is one or a mixture of more than one of tri (1-chloro-2-propyl) phosphate, trichloroethyl phosphate and methyl dimethyl phosphate in any proportion. Preferably, the flame retardant is dimethyl methylphosphonate.
Based on the system, under the condition of existence of a silane coupling agent, methyl dimethyl phosphate is effectively combined with nano silicon dioxide and aliphatic polymer in the system, and the flame retardant property of the product is synergistically improved.
The invention further provides a preparation process of the degradable plastic packaging material, which comprises the steps of adding the raw materials into a batching container according to parts by weight, uniformly stirring, adding the mixed materials into a single screw extruder, melting, extruding to form a brace, cooling, granulating, and adding the prepared granules into a film blowing machine to blow into a film.
Advantageous effects
1. The invention provides a degradable plastic packaging material which has excellent antibacterial property, flame retardant property, barrier property and degradability, is effectively applied to packaging of products in the fields of sanitary products, foods, electronic products and the like, and is biodegradable, safe and environment-friendly.
2. Based on the system, the high temperature resistance and mechanical property of the degradable plastic packaging material are effectively improved by introducing the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide with the particle size of 20-50nm, and the chitosan quaternary ammonium salt in the synergistic system, so that the product has excellent antibacterial property, can achieve 99.9% of antibacterial effect on escherichia coli and staphylococcus aureus, and has stable long-term antibacterial property.
3. Based on the system, under the condition of existence of a silane coupling agent, methyl dimethyl phosphate is effectively combined with nano silicon dioxide and aliphatic polymer in the system, and the flame retardant property of the product is synergistically improved.
4. In the system of the invention, the mass ratio is (0.1-1): (4-6): the aliphatic polymer combination of the polyglycolide, the polybutylene succinate and the polypropylene carbonate of the (3-5) ensures that the provided degradable plastic packaging material has excellent tensile strength and gas barrier property, and simultaneously the provided product can be degraded under natural environment conditions after being used.
5. Based on the system, 15-25 parts by weight of nano inorganic powder material is introduced, and in the processing process, the molecular weight of the aliphatic polymer is reduced by blending nano silicon dioxide, nano titanium dioxide and the aliphatic polymer such as polypropylene carbonate, polyglycolide and polybutylene succinate, so that the degradation speed of the degradable plastic packaging material is balanced to a certain extent, and the problem of reduced storage stability of the product caused by over-fast introduction speed of the product is avoided.
Detailed Description
Example 1
In one aspect, embodiment 1 of the present invention provides a degradable plastic packaging material, which is prepared from the following raw materials in parts by weight: 100 parts of aliphatic polymer, 15 parts of plant starch, 20 parts of inorganic powder filler, 3 parts of chitosan and derivatives thereof and 3 parts of functional auxiliary agents;
the aliphatic polymer is a combination of polyglycolide, polybutylene succinate and polypropylene carbonate; the mass ratio of the polyglycolide to the polybutylene succinate to the polypropylene carbonate is 0.5:5:4, a step of; the polybutylene succinate and the polypropylene carbonate are derived from Zhejiang Dajin new material science and technology Co. The polypropylene carbonate is derived from the New Material science and technology Co., ltd. The polyglycolide is derived from Shanghai Jizhui Biochemical technology Co.
The plant starch is corn starch.
The inorganic powder material is a combination of calcium carbonate, nano silicon dioxide and nano titanium dioxide; the mass ratio of the calcium carbonate to the nano silicon dioxide to the nano titanium dioxide is 3:4:2; the particle sizes of the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are respectively 50nm, 50nm and 15nm; the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are derived from Shanghai Michlin Biochemical technology Co.
The chitosan and the derivatives thereof comprise chitosan and chitosan quaternary ammonium salt; the mass ratio of the chitosan to the chitosan quaternary ammonium salt is 2:1.5; the model of the chitosan is C299272, and is purchased from Shanghai Ala Biochemical technology Co., ltd; the substitution degree of the chitosan quaternary ammonium salt is 98%; the model of the chitosan quaternary ammonium salt is 850126, and the chitosan quaternary ammonium salt is derived from Shanghai Michelia Biochemical technology Co.
The functional auxiliary agent comprises a coupling agent, a lubricant, a plasticizer and a flame retardant; the mass ratio of the coupling agent to the lubricant to the plasticizer to the flame retardant is 0.3:0.8:1:1.5.
the coupling agent is a silane coupling agent. The silane coupling agent is 3-aminopropyl triethoxysilane;
the lubricant is ethylene bis-stearamide and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The plasticizer is tributyl citrate, and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The flame retardant is methyl dimethyl phosphate.
The embodiment 1 of the invention provides a preparation process of degradable plastic packaging materials, which comprises the steps of adding all raw materials into a batching container according to parts by weight, uniformly stirring, adding the mixed materials into a single screw extruder, melting, extruding a bracing piece, cooling, granulating, and adding prepared granules into a film blowing machine to blow into a film.
Example 2
In one aspect, embodiment 2 of the present invention provides a degradable plastic packaging material, which is prepared from the following raw materials in parts by weight: 100 parts of aliphatic polymer, 20 parts of plant starch, 15 parts of inorganic powder filler, 3 parts of chitosan and derivatives thereof and 3 parts of functional auxiliary agents;
the aliphatic polymer is a combination of polyglycolide, polybutylene succinate and polypropylene carbonate; the mass ratio of the polyglycolide to the polybutylene succinate to the polypropylene carbonate is 1:6:5, a step of; the polybutylene succinate and the polypropylene carbonate are derived from Zhejiang Dajin new material science and technology Co. The polypropylene carbonate is derived from the New Material science and technology Co., ltd. The polyglycolide is derived from Shanghai Jizhui Biochemical technology Co.
The plant starch is corn starch.
The inorganic powder material is a combination of calcium carbonate, nano silicon dioxide and nano titanium dioxide; the mass ratio of the calcium carbonate to the nano silicon dioxide to the nano titanium dioxide is 3:4:2; the particle sizes of the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are respectively 50nm, 50nm and 15nm; the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are derived from Shanghai Michlin Biochemical technology Co.
The chitosan and the derivatives thereof comprise chitosan and chitosan quaternary ammonium salt; the mass ratio of the chitosan to the chitosan quaternary ammonium salt is 2:1.5; the model of the chitosan is C299272, and is purchased from Shanghai Ala Biochemical technology Co., ltd; the substitution degree of the chitosan quaternary ammonium salt is 98%; the model of the chitosan quaternary ammonium salt is 850126, and the chitosan quaternary ammonium salt is derived from Shanghai Michelia Biochemical technology Co.
The functional auxiliary agent comprises a coupling agent, a lubricant, a plasticizer and a flame retardant; the mass ratio of the coupling agent to the lubricant to the plasticizer to the flame retardant is 0.3:0.8:1:1.5.
the coupling agent is a silane coupling agent. The silane coupling agent is 3-aminopropyl triethoxysilane;
the lubricant is ethylene bis-stearamide and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The plasticizer is tributyl citrate, and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The flame retardant is methyl dimethyl phosphate.
The embodiment 2 of the invention provides a preparation process of a degradable plastic packaging material, which comprises the steps of adding all raw materials into a batching container according to parts by weight, uniformly stirring, adding the mixed materials into a single screw extruder, melting, extruding a bracing piece, cooling, granulating, and adding the prepared granules into a film blowing machine to blow into a film.
Example 3
In one aspect, embodiment 3 of the present invention provides a degradable plastic packaging material, which is prepared from the following raw materials in parts by weight: 100 parts of aliphatic polymer, 10 parts of plant starch, 25 parts of inorganic powder filler, 3 parts of chitosan and derivatives thereof and 3 parts of functional auxiliary agents;
the aliphatic polymer is a combination of polyglycolide, polybutylene succinate and polypropylene carbonate; the mass ratio of the polyglycolide to the polybutylene succinate to the polypropylene carbonate is 0.1:4:3, a step of; the polybutylene succinate and the polypropylene carbonate are derived from Zhejiang Dajin new material science and technology Co. The polypropylene carbonate is derived from the New Material science and technology Co., ltd. The polyglycolide is derived from Shanghai Jizhui Biochemical technology Co.
The plant starch is corn starch.
The inorganic powder material is a combination of calcium carbonate, nano silicon dioxide and nano titanium dioxide; the mass ratio of the calcium carbonate to the nano silicon dioxide to the nano titanium dioxide is 3:4:2; the particle sizes of the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are respectively 50nm, 50nm and 15nm; the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are derived from Shanghai Michlin Biochemical technology Co.
The chitosan and the derivatives thereof comprise chitosan and chitosan quaternary ammonium salt; the mass ratio of the chitosan to the chitosan quaternary ammonium salt is 2:1.5; the model of the chitosan is C299272, and is purchased from Shanghai Ala Biochemical technology Co., ltd; the substitution degree of the chitosan quaternary ammonium salt is 98%; the model of the chitosan quaternary ammonium salt is 850126, and the chitosan quaternary ammonium salt is derived from Shanghai Michelia Biochemical technology Co.
The functional auxiliary agent comprises a coupling agent, a lubricant, a plasticizer and a flame retardant; the mass ratio of the coupling agent to the lubricant to the plasticizer to the flame retardant is 0.3:0.8:1:1.5.
the coupling agent is a silane coupling agent. The silane coupling agent is 3-aminopropyl triethoxysilane;
the lubricant is ethylene bis-stearamide and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The plasticizer is tributyl citrate, and is derived from Shanghai Hua Yi chemical auxiliary agent Co.
The flame retardant is methyl dimethyl phosphate.
The embodiment 3 of the invention provides a preparation process of a degradable plastic packaging material, which comprises the steps of adding all raw materials into a batching container according to parts by weight, uniformly stirring, adding the mixed materials into a single screw extruder, melting, extruding a bracing piece, cooling, granulating, and adding the prepared granules into a film blowing machine to blow into a film.
Comparative example 1
Comparative example 1 of the present invention provides a degradable plastic packaging material, which is different from example 1 in that the polypropylene carbonate is replaced with polylactic acid, which is derived from the mountain technology company of the marchantia.
Comparative example 2
Comparative example 2 of the present invention provides a degradable plastic packaging material, which is different from example 1 in that the inorganic powder material is calcium carbonate.
Comparative example 3
Comparative example 3 of the present invention provides a degradable plastic packaging material, the specific embodiment of which is the same as example 1, wherein the mass ratio of the polyglycolide, the polybutylene succinate and the polypropylene carbonate is 0.1:6:1.
performance test method
(1) Tensile strength: the tensile strength of the degradable plastic packaging materials prepared in examples and comparative examples was measured with reference to the national standard GB/T1040, and the performance test results are shown in Table 1.
(2) Antibacterial properties: the antibacterial efficiency against Escherichia coli and Staphylococcus aureus of the degradable plastic packaging materials prepared in examples and comparative examples was measured with reference to JIS Z2801, and the results of the performance test are shown in Table 1.
(3) Oxygen transmission rate: the oxygen transmission rate of the degradable plastic packaging materials prepared in examples and comparative examples was measured at 23-0% RH using a MOCON OX-TRAN2/21 type oxygen transmission rate tester, and the results of the performance test are shown in Table 1.
(4) Degradable performance: the biodegradable plastic packaging materials prepared in examples and comparative examples were measured with reference to the national standard GB/T19277.1, and the results of the performance test are shown in Table 1.
(5) Limiting oxygen index: the limiting oxygen index of the degradable plastic packaging materials prepared in examples and comparative examples was measured with reference to national standard GB/T2406-1993, and the performance test results are shown in Table 1.

Claims (1)

1. The degradable plastic packaging material is characterized by comprising the following preparation raw materials in parts by weight: 100 parts of aliphatic polymer, 15 parts of plant starch, 20 parts of inorganic powder filler, 3 parts of chitosan and derivatives thereof and 3 parts of functional auxiliary agents;
the aliphatic polymer is a combination of polyglycolide, polybutylene succinate and polypropylene carbonate; the mass ratio of the polyglycolide to the polybutylene succinate to the polypropylene carbonate is 0.5:5:4, a step of; the plant starch is corn starch;
the inorganic powder material is a combination of calcium carbonate, nano silicon dioxide and nano titanium dioxide; the mass ratio of the calcium carbonate to the nano silicon dioxide to the nano titanium dioxide is 3:4:2; the particle sizes of the calcium carbonate, the nano silicon dioxide and the nano titanium dioxide are respectively 50nm, 50nm and 15nm;
the chitosan and the derivatives thereof comprise chitosan and chitosan quaternary ammonium salt; the mass ratio of the chitosan to the chitosan quaternary ammonium salt is 2:1.5; the model of the chitosan is C299272; the substitution degree of the chitosan quaternary ammonium salt is 98%, and the model of the chitosan quaternary ammonium salt is 850126;
the functional auxiliary agent comprises a coupling agent, a lubricant, a plasticizer and a flame retardant; the mass ratio of the coupling agent to the lubricant to the plasticizer to the flame retardant is 0.3:0.8:1:1.5;
the coupling agent is a silane coupling agent; the silane coupling agent is 3-aminopropyl triethoxysilane;
the lubricant is ethylene bis-stearamide;
the plasticizer is tributyl citrate;
the flame retardant is methyl dimethyl phosphate;
the preparation process of the degradable plastic packaging material comprises the steps of adding the raw materials into a batching container according to parts by weight, stirring uniformly, adding the mixed materials into a single screw extruder, melting, extruding out a bracing piece, cooling, granulating, and then adding the prepared granules into a film blowing machine to blow into a film, thus obtaining the degradable plastic packaging material.
CN202210899712.6A 2022-07-28 2022-07-28 Degradable plastic packaging material and preparation process thereof Active CN115073897B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103965603A (en) * 2014-05-06 2014-08-06 宁波家塑生物材料科技有限公司 Polypropylene carbonate/butylene succinate/starch full-biodegrade composite material and preparation method thereof
CN108570224A (en) * 2018-05-24 2018-09-25 天津科技大学 A kind of antibacterial high barrier degradation plastic and its preparation
CN114149620A (en) * 2021-07-30 2022-03-08 宁夏禾易源生物科技有限公司 Starch-based alloy environment-friendly material and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200914524A (en) * 2007-09-18 2009-04-01 Grace Biotech Corp Totally biodegradable starch resin, manufacturing method thereof, film product made the same and resin composition used for preparing the starch resin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103965603A (en) * 2014-05-06 2014-08-06 宁波家塑生物材料科技有限公司 Polypropylene carbonate/butylene succinate/starch full-biodegrade composite material and preparation method thereof
CN108570224A (en) * 2018-05-24 2018-09-25 天津科技大学 A kind of antibacterial high barrier degradation plastic and its preparation
CN114149620A (en) * 2021-07-30 2022-03-08 宁夏禾易源生物科技有限公司 Starch-based alloy environment-friendly material and preparation method thereof

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