CN103819833A - Preparation method of antimicrobial packing bag for grains - Google Patents
Preparation method of antimicrobial packing bag for grains Download PDFInfo
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- CN103819833A CN103819833A CN201210465623.7A CN201210465623A CN103819833A CN 103819833 A CN103819833 A CN 103819833A CN 201210465623 A CN201210465623 A CN 201210465623A CN 103819833 A CN103819833 A CN 103819833A
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- calcium carbonate
- nano calcium
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- coupling agent
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Abstract
The invention discloses a preparation method of an antimicrobial packing bag for grains. The preparation method comprises the following steps: 1) preheating and drying inorganic nano calcium carbonate at 120-140 DEG C for 1-2 hours, and removing moisture therein; fully stirring and dispersing the inorganic nano calcium carbonate, a titanate coupling agent and absolute ethyl alcohol according to a mass ratio of 1:3:25 for 35-45 minutes, and then performing vacuum drying to remove the solvent to obtain organic modified nano calcium carbonate; 2) firstly mixing copper sulfate with a silane coupling agent according to the ratio of 1:1, and then drying the mixture at 120-140 DEG C to perform modified treatment; 3) adding polyvinyl chloride resin, polyethylene resin and other additives in the mixture according to certain ratio, using a high-speed mixer to fully mix the materials uniformly, placing the mixture in a twin-screw extruder to be pelletized at 135-145 DEG C, and adopting a single-screw extrusion blow molding machine to blow and mold the pelletized granules at 180-190 DEG C to prepare the antimicrobial packing bag for grains.
Description
Technical field
The present invention relates to field of packaging material, relate in particular to a kind of preparation method of grain sterilizing bag.
Background technology
Freshness protection package is the plastic packing product of the class fresh-keeping foodstuff commonly used of people, has now a lot of families all to be unable to do without them.Food in microwave oven heating can be used, and in refrigerator, storing food can be used equally, and it is mainly in order to prevent the erosion to food of dust and bacterium that people use freshness protection package.
Most freshness protection packages of selling are in the market the same with conventional plastics bag, all take ethene masterbatch as starting material, according to the different sorts of ethene masterbatch, freshness protection package can be divided into three major types: the first is polyethylene, be called for short PE, this material is mainly used in the packing of food, the fruit usually buying, this film that vegetables are used, be included in supermarket purchase the work in-process of returning all use be this material;
The second is polyvinyl chloride, is called for short PVC, and this material also can be for food product pack, but it has a certain impact to the security of human body; The third is polyvinylidene dichloride, is called for short PVDC, is mainly used in the packing of the products such as some prepared food, ham.In these three kinds of freshness protection packages, the freshness protection package of PE and this bi-material of PVDC is safe to human body, can relievedly use, and PVC freshness protection package contains carcinogenic substance, larger to harm.From physical angle, freshness protection package has appropriate oxygen-permeable and Water Vapour Permeability, regulates by fresh-keeping product oxygen recipe ingredient and moisture recipe ingredient around, intercepts koniology, thereby extends the freshness date of food.
In prior art, there is the report of part about fruits and vegetables antimicrobial preservative film, then have not been reported about the antibacterial packing bag of grain, because grain and fruits and vegetables fresh-keeping requires different, can not directly the freshness protection package for fruits and vegetables be used for to the fresh-keeping of grain, it is antibacterial that the while antimicrobial preservative film for fruits and vegetables of the prior art all adopts nanometer silver to carry out, but silver belongs to precious metal, and its cost is higher, for preservative film or freshness protection package, cause great waste.
Summary of the invention
The object of the invention is to propose a kind of preparation method of grain sterilizing bag, the method, by the adjustment to packing bag component, overcomes the defect of prior art, make packing bag there is antibacterial, and do not use nanometer silver, to reduce costs, guarantee the fresh-keeping effect of grain simultaneously.
For reaching this object, the present invention by the following technical solutions:
A kind of preparation method of grain sterilizing bag, this film is made up of following component in weight part: polyvinyl chloride (PVC) RESINS 60-80 part, polyvinyl resin 10-20 part, dioctyl phthalate (DOP) 18-22 part, polypropylene adipate (PPA) 28-32 part, organic modified nano calcium carbonate 2-5 part, modification copper sulfate 2-4 part, octadecyl ammonium chloride 3-5 part, calcium-zinc composite stabilizing agent 4-6 part, stearic acid 2-4 part, whiteruss 1.5-2.5 part; Described preparation method is:
1) first by inorganic nano calcium carbonate at 120-140 ℃ of preheating and drying 1-2 hour, remove moisture; By inorganic nano calcium carbonate, titanate coupling agent, dehydrated alcohol 1: 3: 25 abundant dispersed with stirring in mass ratio, process the 35-45 minute dry solvent of removing of final vacuum and make organic modified nano calcium carbonate;
2) first by copper sulfate and silane coupling agent by 1:1 mix, the 120-140 ℃ dry modification of carrying out;
3) claim according to the above ratio batching, use high-speed mixer that above-mentioned material is fully mixed, granulation on twin screw extruder at 135-145 ℃ of temperature, then adopt single Screw Extrusion blow moulding machine to be blow molded into grain sterilizing bag at 180-190 ℃.
Beneficial effect of the present invention is:
Organic modified nano calcium carbonate of the present invention and modification copper sulfate are combined as antibacterial bacteriostatic composition, do not use nano silver material, reduce costs, and guarantee to have excellent antibacterial bacteriostatic effect simultaneously.
Embodiment
Embodiment mono-
A kind of preparation method of grain sterilizing bag, this film is made up of following component in weight part: 60 parts of polyvinyl chloride (PVC) RESINS, 20 parts of polyvinyl resins, 18 parts of dioctyl phthalate (DOP)s, 32 parts of polypropylene adipate (PPA)s, 2 parts, organic modified nano calcium carbonate, 4 parts, modification copper sulfate, 3 parts of octadecyl ammonium chloride, 6 parts of calcium-zinc composite stabilizing agents, 2 parts of stearic acid, 2.5 parts of whiterusss; Described preparation method is:
1) first by inorganic nano calcium carbonate 120 ℃ of preheating and dryings 2 hours, remove moisture; By inorganic nano calcium carbonate, titanate coupling agent, dehydrated alcohol 1: 3: 25 abundant dispersed with stirring in mass ratio, process 35 minutes dry solvents of removing of final vacuum and make organic modified nano calcium carbonate;
2) first by copper sulfate and silane coupling agent by 1:1 mix, 120 ℃ of dry modifications of carrying out;
3) claim according to the above ratio batching, use high-speed mixer that above-mentioned material is fully mixed, granulation on twin screw extruder at 135 ℃ of temperature, then adopt single Screw Extrusion blow moulding machine to be blow molded into grain sterilizing bag at 190 ℃.
Embodiment bis-
A kind of preparation method of grain sterilizing bag, this film is made up of following component in weight part: 80 parts of polyvinyl chloride (PVC) RESINS, 10 parts of polyvinyl resins, 22 parts of dioctyl phthalate (DOP)s, 28 parts of polypropylene adipate (PPA)s, 5 parts, organic modified nano calcium carbonate, 2 parts, modification copper sulfate, 5 parts of octadecyl ammonium chloride, 4 parts of calcium-zinc composite stabilizing agents, 4 parts of stearic acid, 1.5 parts of whiterusss; Described preparation method is:
1) first by inorganic nano calcium carbonate 140 ℃ of preheating and dryings 1 hour, remove moisture; By inorganic nano calcium carbonate, titanate coupling agent, dehydrated alcohol 1: 3: 25 abundant dispersed with stirring in mass ratio, process 45 minutes dry solvents of removing of final vacuum and make organic modified nano calcium carbonate;
2) first by copper sulfate and silane coupling agent by 1:1 mix, 140 ℃ of dry modifications of carrying out;
3) claim according to the above ratio batching, use high-speed mixer that above-mentioned material is fully mixed, granulation on twin screw extruder at 145 ℃ of temperature, then adopt single Screw Extrusion blow moulding machine to be blow molded into grain sterilizing bag at 180 ℃.
Embodiment tri-
A kind of preparation method of grain sterilizing bag, this film is made up of following component in weight part: 70 parts of polyvinyl chloride (PVC) RESINS, 15 parts of polyvinyl resins, 20 parts of dioctyl phthalate (DOP)s, 30 parts of polypropylene adipate (PPA)s, 4 parts, organic modified nano calcium carbonate, 3 parts, modification copper sulfate, 4 parts of octadecyl ammonium chloride, 5 parts of calcium-zinc composite stabilizing agents, 3 parts of stearic acid, 2 parts of whiterusss; Described preparation method is:
1) first by inorganic nano calcium carbonate 130 ℃ of preheating and dryings 1.5 hours, remove moisture; By inorganic nano calcium carbonate, titanate coupling agent, dehydrated alcohol 1: 3: 25 abundant dispersed with stirring in mass ratio, process 40 minutes dry solvents of removing of final vacuum and make organic modified nano calcium carbonate;
2) first by copper sulfate and silane coupling agent by 1:1 mix, 130 ℃ of dry modifications of carrying out;
3) claim according to the above ratio batching, use high-speed mixer that above-mentioned material is fully mixed, granulation on twin screw extruder at 140 ℃ of temperature, then adopt single Screw Extrusion blow moulding machine to be blow molded into grain sterilizing bag at 185 ℃.
Claims (1)
1. the preparation method of a grain sterilizing bag, it is characterized in that, this film is made up of following component in weight part: polyvinyl chloride (PVC) RESINS 60-80 part, polyvinyl resin 10-20 part, dioctyl phthalate (DOP) 18-22 part, polypropylene adipate (PPA) 28-32 part, organic modified nano calcium carbonate 2-5 part, modification copper sulfate 2-4 part, octadecyl ammonium chloride 3-5 part, calcium-zinc composite stabilizing agent 4-6 part, stearic acid 2-4 part, whiteruss 1.5-2.5 part; Described preparation method is:
1) first by inorganic nano calcium carbonate at 120-140 ℃ of preheating and drying 1-2 hour, remove moisture; By inorganic nano calcium carbonate, titanate coupling agent, dehydrated alcohol 1: 3: 25 abundant dispersed with stirring in mass ratio, process the 35-45 minute dry solvent of removing of final vacuum and make organic modified nano calcium carbonate;
2) first by copper sulfate and silane coupling agent by 1:1 mix, the 120-140 ℃ dry modification of carrying out;
3) claim according to the above ratio batching, use high-speed mixer that above-mentioned material is fully mixed, granulation on twin screw extruder at 135-145 ℃ of temperature, then adopt single Screw Extrusion blow moulding machine to be blow molded into grain sterilizing bag at 180-190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465623.7A CN103819833A (en) | 2012-11-16 | 2012-11-16 | Preparation method of antimicrobial packing bag for grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465623.7A CN103819833A (en) | 2012-11-16 | 2012-11-16 | Preparation method of antimicrobial packing bag for grains |
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| Publication Number | Publication Date |
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| CN103819833A true CN103819833A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210465623.7A Pending CN103819833A (en) | 2012-11-16 | 2012-11-16 | Preparation method of antimicrobial packing bag for grains |
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| CN (1) | CN103819833A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820445A (en) * | 2016-05-31 | 2016-08-03 | 漳州仂元工业有限公司 | Fungi-proofing pipe and manufacturing method thereof |
| CN106117904A (en) * | 2016-07-28 | 2016-11-16 | 陈林美 | A kind of high intensity antibacterial polyvinyl chloride film formulation |
| CN106349607A (en) * | 2016-09-29 | 2017-01-25 | 合肥远隆包装制品有限公司 | Packaging bag and production technology thereof |
| CN106565987A (en) * | 2016-11-22 | 2017-04-19 | 苏州宇希新材料科技有限公司 | Preparation method of activated calcium carbonate for SBS asphalt stabilizing agent |
| CN107532011A (en) * | 2015-04-27 | 2018-01-02 | Omya国际股份公司 | Modified mineral-based filler comprising mantoquita |
| CN107619556A (en) * | 2017-10-20 | 2018-01-23 | 天津市宝德包装有限公司 | A kind of high-strength and ageing resistance plastic sheeting formula |
| CN107722532A (en) * | 2017-11-17 | 2018-02-23 | 芜湖蓝天工程塑胶有限公司 | Ventilative acrylonitrile ethylene styrene copolymer film and preparation method thereof |
-
2012
- 2012-11-16 CN CN201210465623.7A patent/CN103819833A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532011A (en) * | 2015-04-27 | 2018-01-02 | Omya国际股份公司 | Modified mineral-based filler comprising mantoquita |
| CN105820445A (en) * | 2016-05-31 | 2016-08-03 | 漳州仂元工业有限公司 | Fungi-proofing pipe and manufacturing method thereof |
| CN106117904A (en) * | 2016-07-28 | 2016-11-16 | 陈林美 | A kind of high intensity antibacterial polyvinyl chloride film formulation |
| CN106349607A (en) * | 2016-09-29 | 2017-01-25 | 合肥远隆包装制品有限公司 | Packaging bag and production technology thereof |
| CN106565987A (en) * | 2016-11-22 | 2017-04-19 | 苏州宇希新材料科技有限公司 | Preparation method of activated calcium carbonate for SBS asphalt stabilizing agent |
| CN107619556A (en) * | 2017-10-20 | 2018-01-23 | 天津市宝德包装有限公司 | A kind of high-strength and ageing resistance plastic sheeting formula |
| CN107722532A (en) * | 2017-11-17 | 2018-02-23 | 芜湖蓝天工程塑胶有限公司 | Ventilative acrylonitrile ethylene styrene copolymer film and preparation method thereof |
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Application publication date: 20140528 |