CN104629157A - Inorganic powder modified plastic preservation bag material and preparation process thereof - Google Patents
Inorganic powder modified plastic preservation bag material and preparation process thereof Download PDFInfo
- Publication number
- CN104629157A CN104629157A CN201510033901.5A CN201510033901A CN104629157A CN 104629157 A CN104629157 A CN 104629157A CN 201510033901 A CN201510033901 A CN 201510033901A CN 104629157 A CN104629157 A CN 104629157A
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- Prior art keywords
- inorganic powder
- protection package
- freshness protection
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- component
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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
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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
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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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
-
- 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
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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
Abstract
The invention discloses an inorganic powder modified plastic preservation bag material. The inorganic powder modified plastic preservation bag material is characterized by containing the ingredients in parts by weight: 450-550 parts of calcium oxide with the particle size of 800-1,100 meshes, 45-55 parts of silicon dioxide with the particle size of 4,500-5,500 meshes, 4-6 parts of a coupling agent, 40-50 parts of polyethylene wax, 45-55 parts of POE (polyolefin elastomer) and 300-400 parts of LLDPE (Linear Low-Density Polyethylene), wherein the sum of parts (by weight) of all the ingredients is 1,000. The inorganic powder modified plastic preservation bag material is air-permeable and water-impermeable and can be used for absorbing ethylene gas released by packaged fruits, thereby playing roles in preserving freshness and holding moisture.
Description
Technical field
The present invention relates to freshness protection package and prepare field of material technology, relate to a kind of plastics modified by inorganic powder freshness protection package material in particular.
Background technology
Freshness protection package, the sack being mainly used in other foods such as preservation veterinary antibiotics, cereal, prepared food of main finger food fresh keeping film production, uses widely in daily life.Freshness protection package is divided into the kinds such as polyethylene (PE), polyvinyl chloride (PVC), polyvinylidene dichloride (PVDC) by making material.PE, PVDC freshness protection package is relatively safe, and PE is mainly used in the packaging of fruit, vegetables etc., and PVDC is mainly used in the packaging of some prepared food, hams etc.And although PVC freshness protection package is widely used in the outer packaging of food, vegetables etc., there is certain potential hazard to human body.Its harm is mainly derived from two aspects: one is vinyl chloride-butyl acrylate compolymer in product (vinylchlorid to the threshold limit values standard of human body for being less than 1mg/kg), and two is contaminations of the processing aid used in the course of processing.Two kinds of carcinogenic possibilities of material tool are had in PVC, one is VCM (vinyl chloride monomer), one is DEHA (softening agent), if the composition of VCM is nontoxic in the scope of 1PPM (1,000,000/), just has carcinogenic possibility if exceeded standard; And softening agent at high temperature can discharge and harmful.Therefore, the most widely used is at present PE, PVDC freshness protection package.But, no matter be freshness protection package prepared by PE or PVDC material, good freshening effect all do not had to fruit, vegetables.For fruit, in application field, the treatment process of the orchard worker of more than 90% to fruit is had to be: soon ripened fruit is taken off, slowly accelerate the ripening, such fruit can be put slightly long-time, if hung over, treetop etc. is ripe to be taken off again, puts less than how long just rotting.And the principle that fruit accelerates the ripening is: utilize ethene to have dematuration to fruit, deposited in by fruit in this gas, this gas of fruit respiratory tract, can accelerate the chemical reaction of self, inner carbohydrate reaction, and sugar accumulation, to certain phase, is exactly ripe; Fruit is once maturation, if continue to be placed in ethene environment, inner biochemical reaction keeps fast, continue carbohydrate reaction, sugar changes into alcohol, sugar reduces, and alcohol (ethanol) how, the further deliquescing of fruit ... our naked eyes are seen, are exactly that fruit " has rotted ".Therefore, if ripened fruit continuation sack encapsulates by we, because sack itself is air-locked, ethylene concentration in sack can rise gradually, when we carry out fresh-keeping with freshness protection package to fruit, not only do not have freshening effect, also can accelerate fruit maturation and rot.For this reason, part freshness protection package is had can be designed specifically to very lacunary structure, to reach ventilated effect; But consequent problem is that sack is permeable, and the moisture in fruit can run off easily, fruit is not put and will be become dry for several days, and fresh-keeping effect is poor.
For this reason, orchard worker, taking after fruit accelerates the ripening, also can spray one deck fresh-keeping liquid at fruit surface, form thin film at fruit surface, suppress the breathing of fruit, control the speed of fruit decay, keep relative humidity, avoid internal moisture to evaporate.But this mode is also not suitable for all fruit, some fruit also can change color after using preservation agent, and even produce peculiar smell, effect can be run counter to desire; Exceed standard as fresh-keeping agent of fruits or illegally add, very large to harm, genetic damage, hepatic and renal function may be caused to damage, also can cause chronic poisoning etc.Therefore, along with the raising gradually of people's healthcare knowledge level, also more and more resistance is represented to the attitude of the fresh-keeping mode using the fresh-keeping vegetables and fruits of preservation agent.Therefore, current, the fresh keeping method not adding any chemical preservative be only people be worth advocating.
Summary of the invention
Object of the present invention is exactly deficiency in order to solve prior art and the one not only permeable watertight provided, and the ethylene gas that the fruit that can absorb packaging discharges, and has the plastics modified by inorganic powder freshness protection package material of fresh-keeping water retaining function.
Another object of the present invention is to provide a kind of preparation technology of plastics modified by inorganic powder freshness protection package material.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of plastics modified by inorganic powder freshness protection package material, and it is characterized in that, its component comprises by weight:
Further illustrating as such scheme: preferably, the component of plastics modified by inorganic powder freshness protection package material comprises by weight:
A preparation technology for plastics modified by inorganic powder freshness protection package material, it is characterized in that, it comprises the steps:
A, adopt described in formula, weigh in the ratio of each component;
B, first by the material of each component at horizontal high-speed mixing machine high-speed mixing 10-20 minute;
C, by the mass transport that mixes to the granulation of parallel equidirectional two-screw forcing machine, produce pellet.
In the high-speed mixing process of described processing step b, high-speed mixing 15 minutes.
After described processing step c, coating materials coiled material produced by pellet on plastic film blowing machine, and coiled material makes plastic packaging bag on plastic bag making machine.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, the present invention selects the good calcium oxide inorganic powder of the water absorbing properties of certain particle size, calcium oxide inorganic powder can form Minute pores in plastic membrane blowing process, the ethylene gas reaching ventilative, waterproof and have the fruit absorbing packaging to discharge, reaches the effect of fresh-keeping water conservation.
2, the present invention adopt the silicon-dioxide of certain particle size and calcium oxide inorganic powder used in combination, further increase the ability of the ethylene gas that its fruit absorbing packaging discharges, reach the effect of good fresh-keeping water conservation.
3, the present invention adopts titanate coupling agent to be used for coated process starch and silicon-dioxide powdery, make powder better compatible with LLDPE polyethylene, add polyethylene wax and play dissemination in the course of processing, calcium oxide inorganic powder is better dispersed in plastics, plays the function of calcium oxide inorganic powder and silicon-dioxide to greatest extent.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is explained in detail.
Embodiment 1
A kind of plastics modified by inorganic powder freshness protection package of the present invention material, its component comprises by weight:
Be below the preparation technology of plastics modified by inorganic powder freshness protection package material, it comprises the steps:
A, according to described formula, to weigh in the ratio of each component;
B, first by the material of each component horizontal high-speed mixing machine high-speed mixing 15 minutes;
C, by the mass transport that mixes to the granulation of parallel equidirectional two-screw forcing machine, produce pellet.
After described processing step c, coating materials coiled material produced by pellet on plastic film blowing machine, and coiled material makes plastic packaging bag on plastic bag making machine.
Embodiment 2
In the present embodiment, plastics modified by inorganic powder freshness protection package material, its component comprises by weight:
Be below the preparation technology of plastics modified by inorganic powder freshness protection package material, it comprises the steps:
A, according to described formula, to weigh in the ratio of each component;
B, first by the material of each component horizontal high-speed mixing machine high-speed mixing 18 minutes;
C, by the mass transport that mixes to the granulation of parallel equidirectional two-screw forcing machine, produce pellet.
After described processing step c, coating materials coiled material produced by pellet on plastic film blowing machine, and coiled material makes plastic packaging bag on plastic bag making machine.
Embodiment 3
In the present embodiment, plastics modified by inorganic powder freshness protection package material, its component comprises by weight:
Be below the preparation technology of plastics modified by inorganic powder freshness protection package material, it comprises the steps:
A, according to described formula, to weigh in the ratio of each component;
B, first by the material of each component horizontal high-speed mixing machine high-speed mixing 20 minutes;
C, by the mass transport that mixes to the granulation of parallel equidirectional two-screw forcing machine, produce pellet.
After described processing step c, coating materials coiled material produced by pellet on plastic film blowing machine, and coiled material makes plastic packaging bag on plastic bag making machine.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. a plastics modified by inorganic powder freshness protection package material, is characterized in that, its component comprises by weight:
800-1100 object calcium oxide 450-550 part,
4500-5500 object silicon-dioxide 45-55 part,
Coupling agent 4-6 part,
Polyethylene wax 40-50 part,
POE elastomerics 45-55 part,
LLDPE polyethylene 300-400 part,
The weight part sum of each component is 1000 parts.
2. a kind of plastics modified by inorganic powder freshness protection package material according to claim 1, it is characterized in that, the component of plastics modified by inorganic powder freshness protection package material comprises by weight:
950-1050 object calcium oxide 480-520 part,
4800-5200 object silicon-dioxide 48-52 part,
Titanate coupling agent 5-6 part,
WAX polyethylene wax 43-48 part,
POE elastomerics 48-52 part,
LLDPE polyethylene 320-360 part,
The weight part sum of each component is 1000 parts.
3. a preparation technology for corresponding to the plastics modified by inorganic powder freshness protection package material described in claim 1 or 2 plastics modified by inorganic powder freshness protection package material, it is characterized in that, it comprises the steps:
A, adopt described in formula, weigh in the ratio of each component;
B, first by the material of each component at horizontal high-speed mixing machine high-speed mixing 10-20 minute;
C, by the mass transport that mixes to the granulation of parallel equidirectional two-screw forcing machine, produce pellet.
4. the preparation technology of plastics modified by inorganic powder freshness protection package material according to claim 3, is characterized in that, in the high-speed mixing process of described processing step b, and high-speed mixing 15 minutes.
5. the preparation technology of plastics modified by inorganic powder freshness protection package material according to claim 3, is characterized in that, after described processing step c, coating materials coiled material produced by pellet on plastic film blowing machine, and coiled material makes plastic packaging bag on plastic bag making machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033901.5A CN104629157A (en) | 2015-01-22 | 2015-01-22 | Inorganic powder modified plastic preservation bag material and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033901.5A CN104629157A (en) | 2015-01-22 | 2015-01-22 | Inorganic powder modified plastic preservation bag material and preparation process thereof |
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| Publication Number | Publication Date |
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| CN104629157A true CN104629157A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510033901.5A Pending CN104629157A (en) | 2015-01-22 | 2015-01-22 | Inorganic powder modified plastic preservation bag material and preparation process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057210A (en) * | 2017-05-23 | 2017-08-18 | 苏州轩朗塑料制品有限公司 | The preparation method and application of plastics modified by inorganic powder material |
| CN107177089A (en) * | 2017-05-22 | 2017-09-19 | 句容市兴武包装有限公司 | A kind of micropore preservative film for garden stuff and preparation method thereof |
| CN111941886A (en) * | 2020-07-20 | 2020-11-17 | 西安海宏保鲜科技有限责任公司 | Preparation process of antibacterial freshness protection package |
| CN111944220A (en) * | 2020-07-20 | 2020-11-17 | 西安海宏保鲜科技有限责任公司 | Breathable waterproof plastic film and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467245A (en) * | 2002-07-08 | 2004-01-14 | 北京崇高纳米科技有限公司 | Fruit and vegetable fresh-keeping plastic film and method for making the same |
-
2015
- 2015-01-22 CN CN201510033901.5A patent/CN104629157A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467245A (en) * | 2002-07-08 | 2004-01-14 | 北京崇高纳米科技有限公司 | Fruit and vegetable fresh-keeping plastic film and method for making the same |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业出版社组织编写: "《精细化工产品大全 下卷》", 31 January 2005 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177089A (en) * | 2017-05-22 | 2017-09-19 | 句容市兴武包装有限公司 | A kind of micropore preservative film for garden stuff and preparation method thereof |
| CN107057210A (en) * | 2017-05-23 | 2017-08-18 | 苏州轩朗塑料制品有限公司 | The preparation method and application of plastics modified by inorganic powder material |
| CN111941886A (en) * | 2020-07-20 | 2020-11-17 | 西安海宏保鲜科技有限责任公司 | Preparation process of antibacterial freshness protection package |
| CN111944220A (en) * | 2020-07-20 | 2020-11-17 | 西安海宏保鲜科技有限责任公司 | Breathable waterproof plastic film and application thereof |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150520 |