CN107163362A - A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle - Google Patents
A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle Download PDFInfo
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- CN107163362A CN107163362A CN201710365465.0A CN201710365465A CN107163362A CN 107163362 A CN107163362 A CN 107163362A CN 201710365465 A CN201710365465 A CN 201710365465A CN 107163362 A CN107163362 A CN 107163362A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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
- C08L2205/02—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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention provides a kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, first nano-powder, low density polyethylene (LDPE), low density linear polyethylene, dispersant, lubricant and coupling agent are mixed, mixture feeding double screw extruder extrusion, then gained nanometer of master batch, antifoggant master batch, microcrystalline cellulose, PLA, plasticizer and low density linear polyethylene are mixed, it is cast, produces through double-layer coextrusion casting machine.The present invention is using polyethylene as raw material, and four kinds of nano active particles of addition, microcrystalline cellulose and antifoggant master batch prepare novel nano preservative film.Gained preservative film has good gas permeability and anti-fog properties, the more common preservative film decline of rate of perviousness, moisture evaporation can be reduced, beneficial to the fresh-keeping of edible mushroom.
Description
Technical field
The invention belongs to fresh food field of packaging material, and in particular to a kind of edible mushroom of addition nano-particle protects
The preparation method of fresh film.
Background technology
China's domestic fungus resource accounts for more than the 65% of Gross World Product, is domestic fungus resource most abundant country in the world
One, but edible Pseudomonas climacteric type vegetables, still provide for strong physiological metabolism activity after adopting, easy brown stain, parachute-opening and rot, be difficult
Fresh-keeping, storage tolerance and anti-season supply, very big loss is not brought to production and selling.
It is a kind of mode of controlled atmosphere that film packaging is fresh-keeping.Film packaging can reduce the evaporation for eating body moisture, protection production
Product are from mechanical damage, and the change in concentration that this method packs interior oxygen and carbon dioxide in storage is not known, therefore is used for
Short-term storing is i.e. as a kind of provisional storage method of marketing fresh；In addition, packaging material raw material sources are wide, expense is low, hygienic, U.S.
See, therefore film packaging is the good method of marketing fresh packaging storage edible mushroom.
In film packaging bag, the ratio of gas can only lean on the gas permeability of the respiration and film of edible mushroom in itself mutual
Containing automatically achieves a kind of equilibrium concentration.When gas reaches balance, carbon dioxide inside and outside the big output of oxygen partial pressure difference inside and outside bag
Several times of partial pressure difference, so that the level of low oxygen high carbon dioxide in bag is kept, but this equilibrium concentration is unsuitable for many productions
Product, it is therefore necessary to consider to carry out film packaging artificial regulating the qi flowing in the channels or use can adjust gas in bag and reach suitably balance special
Material.
The content of the invention
The technical problem of solution：It is an object of the invention to provide a kind of preparation for the edible fungus fresh-keeping film for adding nano-particle
Method.
Technical scheme：A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, comprises the following steps：
Step 1, in parts by weight, by 8-15 parts of nano-powder, 37-46 parts of low density polyethylene (LDPE), low density linear polyethylene 15-
1-3 parts of 25 parts, 8-12 parts of dispersant, 3-7 parts of lubricant and coupling agent are mixed, mixture feeding double screw extruder extrusion, are obtained
To nanometer of master batch；
Step 2, in parts by weight, by 7-12 parts of step 1 gained nanometer of master batch, 6-12 parts of antifoggant master batch, microcrystalline cellulose 3-9
Part, 1-3 parts of PLA, 0.5-1.2 parts of plasticizer and 80-90 parts of mixing of low density linear polyethylene, through double-layer coextrusion casting machine
Curtain coating, is produced.
The nano-powder be Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio
1：1：0.8：The mixture of 0.3 mixing.
The lubricant is magnesium stearate or zinc stearate.
The coupling agent is titanate coupling agent.
One or more of the titanate coupling agent in TC-114, TC-27, TC-201 or TC-130.
One or several kinds of the described plasticizer in ethylene glycol, propane diols, sorbierite or glycerine.
Beneficial effect：The present invention is using polyethylene as raw material, four kinds of nano active particles of addition, microcrystalline cellulose and antifoggant
Master batch, prepares novel nano preservative film.Gained preservative film has good gas permeability and anti-fog properties, the more common preservative film of rate of perviousness
Decline, moisture evaporation can be reduced, beneficial to the fresh-keeping of edible mushroom.
Embodiment
Embodiment 1
A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, comprises the following steps：
Step 1, in parts by weight, by 11 parts of nano-powder, 40 parts of low density polyethylene (LDPE), low density linear polyethylene 18 part, point
9 parts of powder, the 1.6 parts of mixing of 5 parts of lubricant and coupling agent, mixture feeding double screw extruder extrusion obtain nanometer of master batch；
Step 2, in parts by weight, by 9 parts of step 1 gained nanometer of master batch, 7 parts of antifoggant master batch, 5 parts of microcrystalline cellulose, poly- breast
1.5 parts of acid, the 83 parts of mixing of 0.8 part of plasticizer and low density linear polyethylene, are cast through double-layer coextrusion casting machine, produce.
The nano-powder be Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio
1：1：0.8：The mixture of 0.3 mixing.
The lubricant is zinc stearate.
The coupling agent is titanate coupling agent TC-27.
Described plasticizer is propane diols.
The transverse tensile strength of gained preservative film is 28.72, and horizontal angle tear strength is 1275, and transverse breakage nominally should
It is changed into 781, light transmittance is 94.1%, oxygen transmission rate is 8235cm3/(m224hatm), saturating carbon dioxide rate is 35650 cm3/
(m2·24h·atm)。
Embodiment 2
A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, comprises the following steps：
Step 1, in parts by weight, by 8 parts of nano-powder, 37 parts of low density polyethylene (LDPE), 15 parts of low density linear polyethylene, scattered
8 parts of agent, the 1 part of mixing of 3 parts of lubricant and coupling agent, mixture feeding double screw extruder extrusion obtain nanometer of master batch；
Step 2, in parts by weight, by 7 parts of step 1 gained nanometer of master batch, 6 parts of antifoggant master batch, 3 parts of microcrystalline cellulose, poly- breast
1 part of acid, the 80 parts of mixing of 0.5 part of plasticizer and low density linear polyethylene, are cast through double-layer coextrusion casting machine, produce.
The nano-powder be Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio
1：1：0.8：The mixture of 0.3 mixing.
The lubricant is magnesium stearate.
The coupling agent is titanate coupling agent TC-114.
Described plasticizer is ethylene glycol.
The transverse tensile strength of gained preservative film is 29.54, and horizontal angle tear strength is 1324, and transverse breakage nominally should
It is changed into 776, light transmittance is 93.2%, oxygen transmission rate is 8175cm3/(m224hatm), saturating carbon dioxide rate is 34780cm3/
(m2·24h·atm)。
Embodiment 3
A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, comprises the following steps：
Step 1, in parts by weight, by 13 parts of nano-powder, 43 parts of low density polyethylene (LDPE), low density linear polyethylene 19 part, point
11 parts of powder, the 2.2 parts of mixing of 5 parts of lubricant and coupling agent, mixture feeding double screw extruder extrusion obtain nanometer of master batch；
Step 2, in parts by weight, by 10 parts of step 1 gained nanometer of master batch, 10 parts of antifoggant master batch, 7 parts of microcrystalline cellulose, poly-
2 parts of lactic acid, the 88 parts of mixing of 0.9 part of plasticizer and low density linear polyethylene, are cast through double-layer coextrusion casting machine, produce.
The nano-powder be Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio
1：1：0.8：The mixture of 0.3 mixing.
The lubricant is magnesium stearate.
The coupling agent is titanate coupling agent TC-130.
Described plasticizer is sorb.
The transverse tensile strength of gained preservative film is 29.53, and horizontal angle tear strength is 1318, and transverse breakage nominally should
It is changed into 794, light transmittance is 94.2%, oxygen transmission rate is 8345cm3/(m224hatm), saturating carbon dioxide rate is 35780cm3/
(m2·24h·atm)。
Embodiment 4
A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, comprises the following steps：
Step 1, in parts by weight, by 15 parts of nano-powder, 46 parts of low density polyethylene (LDPE), low density linear polyethylene 25 part, point
12 parts of powder, the 3 parts of mixing of 7 parts of lubricant and coupling agent, mixture feeding double screw extruder extrusion obtain nanometer of master batch；
Step 2, in parts by weight, by 12 parts of step 1 gained nanometer of master batch, 12 parts of antifoggant master batch, 9 parts of microcrystalline cellulose, poly-
3 parts of lactic acid, the 90 parts of mixing of 1.2 parts of plasticizer and low density linear polyethylene, are cast through double-layer coextrusion casting machine, produce.
The nano-powder be Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio
1：1：0.8：The mixture of 0.3 mixing.
The lubricant is magnesium stearate.
The coupling agent is titanate coupling agent TC-114.
Described plasticizer is ethylene glycol.
The transverse tensile strength of gained preservative film is 27.52, and horizontal angle tear strength is 1168, and transverse breakage nominally should
It is changed into 773, light transmittance is 92.7%, oxygen transmission rate is 8125cm3/(m224hatm), saturating carbon dioxide rate is 34650cm3/
(m2·24h·atm)。
Claims (6)
1. a kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle, it is characterised in that：Comprise the following steps：
Step 1, in parts by weight, by 8-15 parts of nano-powder, 37-46 parts of low density polyethylene (LDPE), low density linear polyethylene 15-
1-3 parts of 25 parts, 8-12 parts of dispersant, 3-7 parts of lubricant and coupling agent are mixed, mixture feeding double screw extruder extrusion, are obtained
To nanometer of master batch；
Step 2, in parts by weight, by 7-12 parts of step 1 gained nanometer of master batch, 6-12 parts of antifoggant master batch, microcrystalline cellulose 3-9
Part, 1-3 parts of PLA, 0.5-1.2 parts of plasticizer and 80-90 parts of mixing of low density linear polyethylene, through double-layer coextrusion casting machine
Curtain coating, is produced.
2. the preparation method of the edible fungus fresh-keeping film of nano-particle is added according to claim 1, it is characterised in that：It is described to receive
Ground rice body is Nano Silver, nano titanium oxide, nano-attapulgite and nano silicon in mass ratio 1：1：0.8：0.3 mixing
Mixture.
3. the preparation method of the edible fungus fresh-keeping film of nano-particle is added according to claim 1, it is characterised in that：The profit
Lubrication prescription is magnesium stearate or zinc stearate.
4. the preparation method of the edible fungus fresh-keeping film of nano-particle is added according to claim 1, it is characterised in that：The idol
Connection agent is titanate coupling agent.
5. the preparation method of the edible fungus fresh-keeping film of nano-particle is added according to claim 1, it is characterised in that：The titanium
One or more of the acid esters coupling agent in TC-114, TC-27, TC-201 or TC-130.
6. the preparation method of the edible fungus fresh-keeping film of nano-particle is added according to claim 1, it is characterised in that：Described
One or several kinds of the plasticizer in ethylene glycol, propane diols, sorbierite or glycerine.
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| CN201710365465.0A CN107163362A (en) | 2017-05-22 | 2017-05-22 | A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle |
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| CN201710365465.0A CN107163362A (en) | 2017-05-22 | 2017-05-22 | A kind of preparation method for the edible fungus fresh-keeping film for adding nano-particle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513205A (en) * | 2017-09-30 | 2017-12-26 | 桐城市中汇塑业有限公司 | A kind of fruit packaging nano preservative film |
| CN107857919A (en) * | 2017-10-11 | 2018-03-30 | 南京财经大学 | A kind of food antibacterial fresh-keeping packaging material with sustained release performance and preparation method thereof |
| CN108047541A (en) * | 2018-01-23 | 2018-05-18 | 北京启航包装制品有限公司 | A kind of plastic tableware and its processing method |
| CN110066451A (en) * | 2019-04-20 | 2019-07-30 | 青岛科技大学 | A kind of plastic film anti-droplet master batch and preparation method thereof |
| CN111267441A (en) * | 2018-12-04 | 2020-06-12 | 南亚塑胶工业股份有限公司 | Vegetable and fruit preservative film and preparation method thereof |
| WO2021077466A1 (en) * | 2019-10-23 | 2021-04-29 | 江阴市德惠热收缩包装材料有限公司 | Membrane and preparation method thereof |
| CN113024926A (en) * | 2021-03-18 | 2021-06-25 | 日丰企业集团有限公司 | Color master batch and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513205A (en) * | 2017-09-30 | 2017-12-26 | 桐城市中汇塑业有限公司 | A kind of fruit packaging nano preservative film |
| CN107857919A (en) * | 2017-10-11 | 2018-03-30 | 南京财经大学 | A kind of food antibacterial fresh-keeping packaging material with sustained release performance and preparation method thereof |
| CN108047541A (en) * | 2018-01-23 | 2018-05-18 | 北京启航包装制品有限公司 | A kind of plastic tableware and its processing method |
| CN111267441A (en) * | 2018-12-04 | 2020-06-12 | 南亚塑胶工业股份有限公司 | Vegetable and fruit preservative film and preparation method thereof |
| CN110066451A (en) * | 2019-04-20 | 2019-07-30 | 青岛科技大学 | A kind of plastic film anti-droplet master batch and preparation method thereof |
| WO2021077466A1 (en) * | 2019-10-23 | 2021-04-29 | 江阴市德惠热收缩包装材料有限公司 | Membrane and preparation method thereof |
| CN113024926A (en) * | 2021-03-18 | 2021-06-25 | 日丰企业集团有限公司 | Color master batch and preparation method and application thereof |
| CN113024926B (en) * | 2021-03-18 | 2023-03-10 | 日丰企业集团有限公司 | Color master batch and preparation method and application thereof |
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Application publication date: 20170915 |