CN109401246A - A kind of environment-protective food package bag material - Google Patents
A kind of environment-protective food package bag material Download PDFInfo
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- CN109401246A CN109401246A CN201811286333.XA CN201811286333A CN109401246A CN 109401246 A CN109401246 A CN 109401246A CN 201811286333 A CN201811286333 A CN 201811286333A CN 109401246 A CN109401246 A CN 109401246A
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- package bag
- coir fibre
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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
- C08L67/04—Polyesters derived from hydroxycarboxylic 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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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)
- Packages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
The invention discloses a kind of environment-protective food package bag material, raw material includes: 100 parts of base-material, 10-15 parts of compounded mix, 0.4-0.6 parts of antioxidant, 3-5 parts of tributyl citrate, 2-4 parts of compatilizer, 2-3 parts of paraffin by weight；Wherein, base-material is polylactic acid and polypropylene, and compounded mix is modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide.Good toughness of the present invention, and antibiotic ultraviolet-resistant performance is good.
Description
Technical field
The present invention relates to plastics arts more particularly to a kind of environment-protective food package bag materials.
Background technique
Currently, plastics have been widely used in packaging material for food, the materials such as Chang Xuanyong polyethylene, polypropylene are as packet
Package material, but polyethylene, polypropylene be not degradable, can cause environmental pollution.
Polylactic acid is a kind of nontoxic, biodegradable material, has good biocompatibility, the transparency, easy processing
Property；Polylactic acid is suitable for the various processing methods such as blow molding, thermoplastic, and easy to process, application is very extensive.It may be utilized in fabricating food packet
Package material, still, polylactic acid quality is more crisp, and toughness is lower, it is hindered to develop and apply.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of environment-protective food package bag material, the present invention
Good toughness, and antibiotic ultraviolet-resistant performance is good.
A kind of environment-protective food package bag material proposed by the present invention, raw material includes: 100 parts of base-material by weight, compound
10-15 parts of filler, 0.4-0.6 parts of antioxidant, 3-5 parts of tributyl citrate, 2-4 parts of compatilizer, 2-3 parts of paraffin；Wherein, base-material
For polylactic acid and polypropylene, compounded mix is modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide.
Preferably, in the preparation process of modified coir fibre, taking coir fibre to shear to length is 1-3cm, in hydrogen-oxygen
Change after impregnating 10-12h in sodium water solution, filters to take filter cake, be washed to neutrality, be subsequently added into gamma-aminopropyl-triethoxy-silane
In solution, it is warming up to 70-80 DEG C, insulated and stirred 3-5h filters to take filter cake, washing, and vacuum drying obtains modified coir fibre.
Preferably, in the preparation process of modified coir fibre, the mass fraction of sodium hydrate aqueous solution is 9-11wt%.
Preferably, in the preparation process of modified coir fibre, the mass fraction of gamma-aminopropyl-triethoxy-silane solution
For 3-5wt%, solvent is ethanol water, wherein the volume ratio of second alcohol and water is 8.5-9:1-1.5.
Preferably, in the preparation process of modified coir fibre, the weight of coir fibre, gamma-aminopropyl-triethoxy-silane
Amount is than being 10:1-2.
In the preparation process of above-mentioned modified coir fibre, the dosage of sodium hydrate aqueous solution is not provided, can impregnate coconut husk fibre
Dimension.
Preferably, modified nano-titanium dioxide is gamma-aminopropyl-triethoxy-silane modified nano-titanium dioxide.
Preferably, polylactic acid and polyacrylic weight ratio are 6.5-7:3-3.5.
Preferably, modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide weight ratio be 8-10:0.5-1:
2-4。
Preferably, compatilizer is maleic anhydride inoculated polypropylene and cellulose butyrate.
Preferably, antioxidant is antioxidant 1010, ultraviolet absorbing agent UVP-327.
Preferably, the weight ratio of maleic anhydride inoculated polypropylene and cellulose butyrate is 1-2:0.5.
Preferably, antioxidant 1010, ultraviolet absorbing agent UVP-327 weight ratio be 1:2-3.
Above-mentioned environment-protective food package bag material the preparation method comprises the following steps: base-material and compounded mix, compatilizer are mediated mixing, so
It is kneaded afterwards with antioxidant, tributyl citrate, paraffin, squeezes out particle through double screw extruder and obtain environment-protective food package bag material
Material.
The present invention selects polylactic acid and polypropylene to cooperate, and improves the brittleness of polylactic acid, the two is mutual with suitable proportion
Cooperation can further improve brittleness and toughness of the invention, and polylactic acid can be biodegradable, reduces the pollution to environment；
Coir fibre is plant fiber, can be degraded, and can also be regenerated, and increases the feature of environmental protection of the invention, and raw material is cheap, reduce at
This, the coir fibre time suitable through the sodium hydrate aqueous solution processing of suitable concentration, can remove other except cellulose
Substance, and make cellulose surface coarse, it can increase its linking power with base-material, and expose more active group,
Then it is grafted upper gamma-aminopropyl-triethoxy-silane, improves the hygroscopic problem of cellulose, and increases cellulose and base-material
Compatibility, and amino has been grafted on cellulose, it can be with hydroxyl, the carboxylic-bond in polylactic acid, to further increase coconut husk fibre
The connectivity of dimension and base-material, to greatly increase toughness of the invention；Nano-titanium dioxide is through gamma-aminopropyl-triethoxy-silane
It is modified, improve its dispersibility, keeps it evenly dispersed with base-material, increase shock resistance of the invention, and improve the present invention
Anti-ultraviolet property and antibiotic property；And modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide are with proper ratio phase
Mutually cooperation, can further increase toughness of the invention；Maleic anhydride inoculated polypropylene and cellulose butyrate, paraffin phase interworking
It closes, filler can be promoted evenly dispersed with base-material, increase mechanical performance of the invention；Antioxidant 1010, ultraviolet absorbing agent
UVP-327 and modified nano-titanium dioxide cooperate, and increase anti-aging property of the invention；Tributyl citrate is adjustable
Toughness and intensity of the invention；The present invention is cooperated by above-mentioned each substance with proper ratio, so that of the invention having is good
Good toughness, antibiotic property and uviolresistance.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of environment-protective food package bag material, raw material include: 100 parts of base-material by weight, 12.5 parts of compounded mix, are resisted
0.5 part of oxygen agent, 4 parts of tributyl citrate, 3 parts of compatilizer, 2.5 parts of paraffin；Wherein, base-material be polylactic acid and polypropylene, it is compound
Filler is modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide.
Embodiment 2
A kind of environment-protective food package bag material, raw material include: 100 parts of base-material by weight, and 10 parts of compounded mix, antioxygen
0.6 part of agent, 3 parts of tributyl citrate, 4 parts of compatilizer, 2 parts of paraffin；Wherein, base-material is polylactic acid and polypropylene, compounded mix
For modified coir fibre, microcrystalline cellulose, gamma-aminopropyl-triethoxy-silane modified nano-titanium dioxide；
In the preparation process of modified coir fibre, taking coir fibre to shear to length is 1-3cm, is in mass fraction
After impregnating 12h in 9wt% sodium hydrate aqueous solution, filter cake is filtered to take, neutrality is washed to, being subsequently added into mass fraction is 3wt%
Gamma-aminopropyl-triethoxy-silane solution in, be warming up to 80 DEG C, insulated and stirred 3h filters to take filter cake, wash, vacuum drying
Obtain modified coir fibre, wherein the solvent of gamma-aminopropyl-triethoxy-silane solution is ethanol water, wherein ethyl alcohol and
The volume ratio of water be 9:1, coir fibre, gamma-aminopropyl-triethoxy-silane weight ratio be 5:1.
Embodiment 3
A kind of environment-protective food package bag material, raw material include: 100 parts of base-material by weight, and 15 parts of compounded mix, antioxygen
0.4 part of agent, 5 parts of tributyl citrate, 2 parts of compatilizer, 3 parts of paraffin；Wherein, base-material is polylactic acid and polypropylene, wherein poly- cream
Sour and polyacrylic weight ratio is 6.5:3.5, and compounded mix is modified coir fibre, microcrystalline cellulose, three ethoxy of γ-aminopropyl
Base silane modified nano-titanium dioxide, wherein the weight ratio of modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide
For 8:1:2；
In the preparation process of modified coir fibre, taking coir fibre to shear to length is 1-3cm, is in mass fraction
After impregnating 10h in 11wt% sodium hydrate aqueous solution, filter cake is filtered to take, neutrality is washed to, being subsequently added into mass fraction is 5wt%
Gamma-aminopropyl-triethoxy-silane solution in, be warming up to 70 DEG C, insulated and stirred 5h filters to take filter cake, wash, vacuum drying
Obtain modified coir fibre, wherein the solvent of gamma-aminopropyl-triethoxy-silane solution is ethanol water, wherein ethyl alcohol and
The volume ratio of water be 8.5:1.5, coir fibre, gamma-aminopropyl-triethoxy-silane weight ratio be 10:1；
Compatilizer is maleic anhydride inoculated polypropylene and cellulose butyrate, wherein maleic anhydride inoculated polypropylene and butyric acid
The weight ratio of cellulose is 2:0.5；
Antioxidant is antioxidant 1010, ultraviolet absorbing agent UVP-327, wherein antioxidant 1010, ultraviolet absorbing agent
The weight ratio of UVP-327 is 1:2.
Embodiment 4
A kind of environment-protective food package bag material, raw material include: 100 parts of base-material by weight, and 12 parts of compounded mix, antioxygen
0.55 part of agent, 3.5 parts of tributyl citrate, 3.5 parts of compatilizer, 2.2 parts of paraffin；Wherein, base-material be polylactic acid and polypropylene,
In, polylactic acid and polyacrylic weight ratio are 7:3, and compounded mix is modified coir fibre, microcrystalline cellulose, γ-aminopropyl three
Ethoxysilane modified nano-titanium dioxide, wherein be modified the weight of coir fibre, microcrystalline cellulose, modified nano-titanium dioxide
Amount is than being 10:0.5:4；
In the preparation process of modified coir fibre, taking coir fibre to shear to length is 1-3cm, is in mass fraction
After impregnating 11.5h in 9.5wt% sodium hydrate aqueous solution, filter cake is filtered to take, neutrality is washed to, being subsequently added into mass fraction is
In the gamma-aminopropyl-triethoxy-silane solution of 3.5wt%, 78 DEG C are warming up to, insulated and stirred 3.5h filters to take filter cake, washing,
Vacuum drying obtains modified coir fibre, wherein and the solvent of gamma-aminopropyl-triethoxy-silane solution is ethanol water,
In, the volume ratio of second alcohol and water is 8.8:1.2, coir fibre, gamma-aminopropyl-triethoxy-silane weight ratio be 10:1.7；
Compatilizer is maleic anhydride inoculated polypropylene and cellulose butyrate, wherein maleic anhydride inoculated polypropylene and butyric acid
The weight ratio of cellulose is 1:0.5；
Antioxidant is antioxidant 1010, ultraviolet absorbing agent UVP-327, wherein antioxidant 1010, ultraviolet absorbing agent
The weight ratio of UVP-327 is 1:3.
Embodiment 5
A kind of environment-protective food package bag material, raw material include: 100 parts of base-material by weight, and 13 parts of compounded mix, antioxygen
0.45 part of agent, 4.5 parts of tributyl citrate, 2.5 parts of compatilizer, 2.8 parts of paraffin；Wherein, base-material be polylactic acid and polypropylene,
In, polylactic acid and polyacrylic weight ratio are 6.7:3.2, and compounded mix is modified coir fibre, microcrystalline cellulose, γ-ammonia third
Ethyl triethoxy silicane alkane modified nano-titanium dioxide, wherein modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide
Weight ratio be 9:0.7:3；
In the preparation process of modified coir fibre, taking coir fibre to shear to length is 1-3cm, is in mass fraction
After impregnating 10.5h in 10.5wt% sodium hydrate aqueous solution, filter cake is filtered to take, neutrality is washed to, being subsequently added into mass fraction is
In the gamma-aminopropyl-triethoxy-silane solution of 4.5wt%, 72 DEG C are warming up to, insulated and stirred 4.5h filters to take filter cake, washing,
Vacuum drying obtains modified coir fibre, wherein and the solvent of gamma-aminopropyl-triethoxy-silane solution is ethanol water,
In, the volume ratio of second alcohol and water is 8.6:1.4, coir fibre, gamma-aminopropyl-triethoxy-silane weight ratio be 10:1.3；
Compatilizer is maleic anhydride inoculated polypropylene and cellulose butyrate, wherein maleic anhydride inoculated polypropylene and butyric acid
The weight ratio of cellulose is 1.5:0.5；
Antioxidant is antioxidant 1010, ultraviolet absorbing agent UVP-327, wherein antioxidant 1010, ultraviolet absorbing agent
The weight ratio of UVP-327 is 1:2.5.
Reference examples: being not added polypropylene, compounded mix, other are the same as embodiment 5.
The mechanical performance and antibiotic property of embodiment 5 and reference examples are detected, as a result as follows:
| Project | Reference examples | Embodiment 5 |
| Inhibition zone | Without inhibition zone | 8.3cm |
| Tensile strength MPa | 45 | 73 |
| Bending modulus MPa | 113 | 175 |
| Impact strength J/m | 162 | 264 |
As can be seen from the above table, the present invention has good antibiotic property and toughness.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of environment-protective food package bag material, which is characterized in that its raw material includes: 100 parts of base-material by weight, compounded mix
10-15 parts, 0.4-0.6 parts of antioxidant, 3-5 parts of tributyl citrate, 2-4 parts of compatilizer, 2-3 parts of paraffin；Wherein, base-material is poly-
Lactic acid and polypropylene, compounded mix are modified coir fibre, microcrystalline cellulose, modified nano-titanium dioxide.
2. environment-protective food package bag material according to claim 1, which is characterized in that in the preparation process of modified coir fibre
In, taking coir fibre to shear to length is that 1-3cm filters to take filter cake after impregnating 10-12h in sodium hydrate aqueous solution, is washed
It to neutrality, is subsequently added into gamma-aminopropyl-triethoxy-silane solution, is warming up to 70-80 DEG C, insulated and stirred 3-5h is filtered to take
Filter cake, washing, vacuum drying obtain modified coir fibre.
3. environment-protective food package bag material according to claim 2, which is characterized in that in the preparation process of modified coir fibre
In, the mass fraction of sodium hydrate aqueous solution is 9-11wt%；Preferably, in the preparation process of modified coir fibre, γ-ammonia
The mass fraction of propyl-triethoxysilicane solution is 3-5wt%, and solvent is ethanol water, wherein the body of second alcohol and water
Product is than being 8.5-9:1-1.5；Preferably, in the preparation process of modified coir fibre, coir fibre, three ethoxy of γ-aminopropyl
The weight ratio of base silane is 10:1-2.
4. any one of -3 environment-protective food package bag material according to claim 1, which is characterized in that modified nano-titanium dioxide
For gamma-aminopropyl-triethoxy-silane modified nano-titanium dioxide.
5. any one of -4 environment-protective food package bag material according to claim 1, which is characterized in that polylactic acid and polyacrylic
Weight ratio is 6.5-7:3-3.5.
6. any one of -5 environment-protective food package bag material according to claim 1, which is characterized in that modified coir fibre, micro-
Crystalline cellulose, the weight ratio of modified nano-titanium dioxide are 8-10:0.5-1:2-4.
7. any one of -6 environment-protective food package bag material according to claim 1, which is characterized in that compatilizer is maleic anhydride
Graft polypropylene and cellulose butyrate.
8. any one of -7 environment-protective food package bag material according to claim 1, which is characterized in that antioxidant is antioxidant
1010, ultraviolet absorbing agent UVP-327.
9. environment-protective food package bag material according to claim 7, which is characterized in that maleic anhydride inoculated polypropylene and butyric acid
The weight ratio of cellulose is 1-2:0.5.
10. environment-protective food package bag material according to claim 8, which is characterized in that antioxidant 1010, ultraviolet absorbing agent
The weight ratio of UVP-327 is 1:2-3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811286333.XA CN109401246A (en) | 2018-10-31 | 2018-10-31 | A kind of environment-protective food package bag material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811286333.XA CN109401246A (en) | 2018-10-31 | 2018-10-31 | A kind of environment-protective food package bag material |
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| CN109401246A true CN109401246A (en) | 2019-03-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375293A (en) * | 2020-11-12 | 2021-02-19 | 韩先锋 | PBT (polybutylene terephthalate) environment-friendly packaging bag and production process thereof |
| CN112442262A (en) * | 2019-09-04 | 2021-03-05 | 罗惠民 | Titanium dioxide modified biodegradable composite material and preparation method and application thereof |
| CN112812363A (en) * | 2021-02-07 | 2021-05-18 | 沈建生 | Plasticizer for plastic processing and preparation method thereof |
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| US20080153940A1 (en) * | 2006-02-28 | 2008-06-26 | Cereplast, Inc. | Biodegradable compositions and biodegradable articles made thereof |
| CN101538401A (en) * | 2009-03-13 | 2009-09-23 | 上海大学 | High temperature resistance binary fiber/polylactic acid based composite material and preparation method thereof |
| CN106519607A (en) * | 2015-09-09 | 2017-03-22 | 李博琪 | Polylactic acid/random copolymerization polypropylene alloy biodegradable material and preparation method thereof |
| CN107778798A (en) * | 2016-08-29 | 2018-03-09 | 合肥杰事杰新材料股份有限公司 | A kind of PLA resin is material modified and preparation method thereof |
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2018
- 2018-10-31 CN CN201811286333.XA patent/CN109401246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080153940A1 (en) * | 2006-02-28 | 2008-06-26 | Cereplast, Inc. | Biodegradable compositions and biodegradable articles made thereof |
| CN101538401A (en) * | 2009-03-13 | 2009-09-23 | 上海大学 | High temperature resistance binary fiber/polylactic acid based composite material and preparation method thereof |
| CN106519607A (en) * | 2015-09-09 | 2017-03-22 | 李博琪 | Polylactic acid/random copolymerization polypropylene alloy biodegradable material and preparation method thereof |
| CN107778798A (en) * | 2016-08-29 | 2018-03-09 | 合肥杰事杰新材料股份有限公司 | A kind of PLA resin is material modified and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442262A (en) * | 2019-09-04 | 2021-03-05 | 罗惠民 | Titanium dioxide modified biodegradable composite material and preparation method and application thereof |
| CN112375293A (en) * | 2020-11-12 | 2021-02-19 | 韩先锋 | PBT (polybutylene terephthalate) environment-friendly packaging bag and production process thereof |
| CN112812363A (en) * | 2021-02-07 | 2021-05-18 | 沈建生 | Plasticizer for plastic processing and preparation method thereof |
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