CN108715659B - Method for improving strength of transparent plastic woven bag - Google Patents
Method for improving strength of transparent plastic woven bag Download PDFInfo
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- CN108715659B CN108715659B CN201810640422.3A CN201810640422A CN108715659B CN 108715659 B CN108715659 B CN 108715659B CN 201810640422 A CN201810640422 A CN 201810640422A CN 108715659 B CN108715659 B CN 108715659B
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- 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
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Abstract
The invention belongs to the technical field of plastic woven bag processing, and particularly relates to a method for improving the strength of a transparent plastic woven bag, which comprises the following steps of: 70-80 parts of polypropylene particles, 6-10 parts of low-density polyethylene particles, 12-18 parts of gleditsia sinensis modified polyethylene, 4-8 parts of silicone resin containing silicon hydroxyl, 2.2-2.8 parts of plasticizer, 1.6-3.4 parts of ether-based kaolin, 0.8-1.6 parts of sodium methyl silicate, 0.6-1.2 parts of licorice oil, 1-2 parts of coupling agent and 0.2-0.6 part of antioxidant. Compared with the prior art, the invention has the following advantages: according to the invention, the mechanical property of the woven bag can be ensured by reasonably proportioning the raw materials; meanwhile, the anti-yellowing plastic woven bag is reasonably matched with the antioxidant, so that the plastic woven bag can effectively resist yellowing, and the service life of the plastic woven bag is prolonged.
Description
Technical Field
The invention belongs to the technical field of plastic woven bag processing, and particularly relates to a method for improving the strength of a transparent plastic woven bag.
Background
In recent years, the plastic woven bag industry in China is rapidly developed, the requirements on product packages are continuously improved along with the requirements of the market on the new and improved spiritual civilization and green environmental protection of people, the packages are the continuation of the production process of commodities and are indispensable conditions for the commodities to enter the circulation and consumption fields, the packages mainly have the renting of protection commodities, and the packaging industry is used as the matching service industry of national economy and is also continuously improved along with the rapid development of the national economy; the polypropylene molecular chain has good regularity and stronger crystallization capacity, but the crystallization speed is slow, large spherulites are easy to form, particularly, the extrusion amount is small, and the large spherulites are easy to form when the cooling water temperature is high, which is beneficial to the tensile strength of the flat filament; the transparency of the woven bag is better, but the transparency can reach 80% in order to clearly see the condition of the contents in the plastic woven bag, and meanwhile, the yellowing resistance of the plastic woven bag needs to be considered.
Disclosure of Invention
The invention aims to provide a method for improving the strength of a transparent plastic woven bag aiming at the existing problems.
The invention is realized by the following technical scheme: a method for improving the strength of a transparent plastic woven bag comprises the following steps: preparing the following raw materials by weight: 70-80 parts of polypropylene particles, 6-10 parts of low-density polyethylene particles, 12-18 parts of gleditsia sinensis modified polyethylene, 4-8 parts of silicone resin containing silicon hydroxyl, 2.2-2.8 parts of plasticizer, 1.6-3.4 parts of ether-based kaolin, 0.8-1.6 parts of sodium methyl silicate, 0.6-1.2 parts of licorice oil, 1-2 parts of coupling agent and 0.2-0.6 part of antioxidant;
the Gleditsia sinensis modified polyethylene is linear low density polyethylene modified with Gleditsia sinensis extract, and the preparation method comprises cleaning Gleditsia sinensis, drying, pulverizing to 80-100 mesh, and averagely dividing into three powder materials, wherein the first powder material is 8-16kGy60Irradiating with Co-gamma ray for 20-30 s to obtain irradiated material; then, leaching the second part of powder in hot water for 30 minutes in an ultrasonic instrument at the temperature of 88-92 ℃ and the feed liquid weight ratio of 1:8-12, filtering to obtain a first filtrate, adding an irradiation material and a third part of powder into the first filtrate, continuing leaching for 30 minutes, filtering to obtain a mixed filtrate, and performing butterfly centrifugation, ultrafiltration and rotary evaporation on the mixed filtrate to obtain a paste;
mixing the prepared raw materials while stirring according to the principle of equivalent incremental increase, drying for 35-45 minutes at the temperature of 75-85 ℃ after uniformly mixing, mixing the dried materials into a molten state at the temperature of 225-235 ℃, cooling in water at the temperature of 12-16 ℃ after extruding and forming a film to obtain a solid film, cutting the solid film into flat filaments, weaving the flat filaments into plastic woven bags by using a circular weaving machine, receiving the materials by a material receiving machine, feeding the materials into a bag cutting machine, cutting, sewing and packaging to obtain the finished product.
As a further improvement to the scheme, the hydroxyl groups on the silicon hydroxyl groups of the silicone resin containing the silicon hydroxyl groups account for 0.8 to 2.4 percent of the total amount of the silicone resin.
As a further improvement to the scheme, the organic silicon resin is one of methyl silicon resin, phenyl silicon resin, methyl phenyl silicon resin, hydrogen-containing silicon resin, methyl vinyl silicon resin or silicon resin with a linear carbon chain length of C2-C8.
As a further improvement to the above scheme, the plasticizer is any one of tributyl citrate, trioctyl citrate or acetyl trioctyl citrate.
As a further improvement on the above scheme, the preparation method of the Gleditsia sinensis modified polyethylene comprises the following steps: mixing linear low-density polyethylene, the gleditsia sinensis extract, maleic anhydride and an initiator according to the weight ratio of 75-85:2-3:1-2:0.3-0.5, carrying out melt extrusion in a double-screw extruder, wherein the temperature of the double-screw extruder and a screw is 160-190 ℃, the rotating speed of the screw is 160-200 r/min, and the retention time in the double screw is controlled to be 60-80 seconds.
As a further improvement of the above scheme, the initiator is one of azobisisobutyronitrile, azobisisovaleronitrile, azobisisoheptonitrile and azobiscyclohexylcarbonitrile.
As a further improvement to the above scheme, the preparation method of the licorice oil comprises the following steps: drying collected liquorice to the water content of less than 3%, then crushing the liquorice to 200 meshes by using an ultrafine crusher to obtain liquorice ultrafine powder, immersing the liquorice ultrafine powder in wild tea oil with the weight 1.5 times of that of the liquorice ultrafine powder, soaking the liquorice ultrafine powder for 8 to 10 hours in a dark condition, heating the liquorice ultrafine powder to 80 to 90 ℃, extracting the liquorice ultrafine powder for 20 minutes, cooling the liquorice, standing and percolating the liquorice for 12 hours to fully filter the liquorice, and obtaining filtrate, namely the liquorice oil.
As a further improvement to the above scheme, the plasticizer is any one of epoxy acetyl methyl linoleate, epoxy butyl furoate, epoxy butyl pupa oleate, epoxy octyl soybean oleate and epoxy octyl 9, 10-epoxy stearate; the coupling agent is one of a mercapto trimethoxy silane coupling agent and a mercapto triethoxy silane coupling agent; the antioxidant is 2, 2' -methylene di (4-methyl-6-tert-butylphenol).
As a further improvement to the above, the above-mentioned means60The irradiation distance is 12-18cm when the Co-gamma ray irradiates the first powder.
Compared with the prior art, the invention has the following advantages: according to the invention, through reasonable proportioning of the raw materials, the crystallization speed of polypropylene is increased, the solid film is prepared by cooling in water at the temperature of 12-16 ℃, the transparency of the woven bag can be improved to a greater extent, meanwhile, the use of calcium-containing additives is reduced, the increase of opacity can be avoided, the reasonable use of the gleditsia sinensis modified polyethylene and the organic silicon resin containing silicon hydroxyl can ensure the mechanical property of the woven bag; meanwhile, the anti-yellowing plastic woven bag is reasonably matched with the antioxidant, so that the plastic woven bag can effectively resist yellowing, and the service life of the plastic woven bag is prolonged.
Detailed Description
Example 1
A method for improving the strength of a transparent plastic woven bag comprises the following steps: preparing the following raw materials by weight: 75 parts of polypropylene particles, 8 parts of low-density polyethylene particles, 15 parts of gleditsia sinensis modified polyethylene, 6 parts of organic silicon resin containing silicon hydroxyl, 2.5 parts of plasticizer, 2.6 parts of ether-group kaolin, 1.2 parts of sodium methyl silicate, 0.8 part of licorice oil, 1.5 parts of coupling agent and 0.4 part of antioxidant;
the Gleditsia sinensis modified polyethylene is linear low density polyethylene modified with Gleditsia sinensis extract, and the preparation method comprises cleaning Gleditsia sinensis, drying, pulverizing to 80-100 mesh, and averagely dividing into three powder materials, wherein the first powder material is obtained by subjecting Gleditsia sinensis to 12kGy60Co-gamma ray irradiation is carried out for 25 seconds, and an irradiation material is obtained for standby after the Co-gamma ray irradiation is finished; then, leaching the second part of powder in hot water for 30 minutes in an ultrasonic instrument at the temperature of 90 ℃ under the condition that the weight ratio of the material to the liquid is 1:10, filtering to obtain a first filtrate, adding an irradiation material and the third part of powder into the first filtrate, continuing to leach for 30 minutes, filtering to obtain a mixed filtrate, and performing butterfly centrifugation, ultrafiltration and rotary evaporation on the mixed filtrate to obtain a paste;
mixing prepared raw materials while stirring according to the principle of equivalent incremental increase, drying for 40 minutes at the temperature of 80 ℃ after uniform mixing, mixing the dried materials into a molten state at the temperature of 230 ℃, cooling in water at the temperature of 14 ℃ after extrusion film forming to obtain a solid film, cutting into flat filaments, weaving into a plastic woven bag by using a circular weaving machine, receiving the material by a material receiving machine, feeding the plastic woven bag into a bag cutting machine, cutting, sewing and packaging to obtain a finished product.
Wherein, the hydroxyl on the silicon hydroxyl of the silicone resin containing the silicon hydroxyl accounts for 1.6 percent of the total amount of the silicone resin; the organic silicon resin is methyl silicon resin; the plasticizer is tributyl citrate;
the preparation method of the gleditsia sinensis modified polyethylene comprises the following steps: mixing linear low-density polyethylene, gleditsia sinensis extract, maleic anhydride and an initiator according to a weight ratio of 80:2.5:1.5:0.4, carrying out melt extrusion in a double-screw extruder, wherein the temperature of the double-screw extruder and a screw is 175 ℃, the rotating speed of the screw is 180 revolutions per minute, and the retention time in the double screw is controlled to be 70 seconds; the initiator is azobisisobutyronitrile;
the preparation method of the licorice oil comprises the following steps: drying collected liquorice until the water content is lower than 3%, then crushing the liquorice into 200 meshes by using an ultrafine crusher to obtain liquorice ultrafine powder, immersing the liquorice ultrafine powder in wild tea oil with the weight 1.5 times that of the liquorice ultrafine powder, soaking the liquorice ultrafine powder for 9 hours in a dark condition, heating the liquorice ultrafine powder to 85 ℃ for extraction for 20 minutes, cooling the liquorice ultrafine powder, standing and percolating the liquorice for 12 hours to fully filter the liquorice oil to obtain filtrate, namely the liquorice oil;
the plasticizer is epoxy acetyl linoleic acid methyl ester; the coupling agent is a mercapto trimethoxy silane coupling agent; the antioxidant is 2, 2' -methylene di (4-methyl-6-tert-butylphenol).
Wherein, the60The irradiation distance is 12-18cm when the Co-gamma ray irradiates the first powder.
The yellowness of the plastic woven bag prepared by the invention is 0.1, the light transmittance reaches more than 82 percent, and the multidirectional tensile load is 734.9N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 83.2 percent, and the yellowness is 0.4.
Example 2
A method for improving the strength of a transparent plastic woven bag comprises the following steps: preparing the following raw materials by weight: 70 parts of polypropylene particles, 10 parts of low-density polyethylene particles, 18 parts of gleditsia sinensis modified polyethylene, 4 parts of organic silicon resin containing silicon hydroxyl, 2.2 parts of plasticizer, 3.4 parts of ether-group kaolin, 0.8 part of sodium methyl silicate, 1.2 parts of licorice oil, 2 parts of coupling agent and 0.2 part of antioxidant;
the Gleditsia sinensis modified polyethylene is linear low density polyethylene modified with Gleditsia sinensis extract, and the preparation method comprises cleaning Gleditsia sinensis, drying, pulverizing to 80-100 mesh, and averagely dividing into three powder materials, wherein the first powder material is prepared by 16kGy60Irradiating for 30 seconds by Co-gamma rays to obtain an irradiated material for later use; then, leaching the second part of powder in hot water for 30 minutes in an ultrasonic instrument at the temperature of 92 ℃ under the condition that the weight ratio of the material to the liquid is 1:12, filtering to obtain a first filtrate, adding an irradiation material and the third part of powder into the first filtrate, continuing to leach for 30 minutes, filtering to obtain a mixed filtrate, and performing butterfly centrifugation, ultrafiltration and rotary evaporation on the mixed filtrate to obtain a paste;
mixing prepared raw materials while stirring according to the principle of equivalent incremental increase, drying for 45 minutes at the temperature of 85 ℃ after uniform mixing, mixing the dried materials into a molten state at the temperature of 235 ℃, cooling in water at the temperature of 16 ℃ after extrusion film forming to obtain a solid film, cutting into flat filaments, weaving into a plastic woven bag by using a circular weaving machine, receiving the material by a material receiving machine, feeding the plastic woven bag into a bag cutting machine, cutting, sewing and packaging to obtain a finished product.
Wherein, the hydroxyl on the silicon hydroxyl of the silicone resin containing the silicon hydroxyl accounts for 0.8 percent of the total amount of the silicone resin; the organic silicon resin is phenyl silicon resin; the plasticizer is trioctyl citrate;
the preparation method of the gleditsia sinensis modified polyethylene comprises the following steps: mixing linear low-density polyethylene, gleditsia sinensis extract, maleic anhydride and an initiator according to a weight ratio of 85:2:1:0.5, carrying out melt extrusion in a double-screw extruder, wherein the temperature of the double-screw extruder and a screw is 160 ℃, the rotating speed of the screw is 200 revolutions per minute, and the residence time in the double screw is controlled to be 80 seconds; the initiator is azobisisoheptonitrile;
the preparation method of the licorice oil comprises the following steps: drying collected liquorice until the water content is lower than 3%, then crushing the liquorice into 200 meshes by using an ultrafine crusher to obtain liquorice ultrafine powder, immersing the liquorice ultrafine powder in wild tea oil with the weight 1.5 times that of the liquorice ultrafine powder in the wild tea oil, soaking the liquorice ultrafine powder for 8 hours in a dark condition, heating the liquorice ultrafine powder to 90 ℃, extracting the liquorice powder for 20 minutes, cooling the liquorice powder, standing and percolating the liquorice powder for 12 hours to fully filter the liquorice powder, and obtaining filtrate, namely the liquorice oil;
the plasticizer is epoxy silkworm chrysalis butyl oleate; the coupling agent is a mercaptotriethoxysilane coupling agent; the antioxidant is 2, 2' -methylene di (4-methyl-6-tert-butylphenol).
Wherein, the60The irradiation distance when the first powder is irradiated by Co-gamma rays is 18 cm.
The yellowness of the plastic woven bag prepared by the invention is 0.1, the light transmittance reaches above 84%, and the multidirectional tensile load is 736.8N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 85.4 percent, and the yellowness is 0.3.
Example 3
A method for improving the strength of a transparent plastic woven bag comprises the following steps: preparing the following raw materials by weight: 80 parts of polypropylene particles, 6 parts of low-density polyethylene particles, 12 parts of gleditsia sinensis modified polyethylene, 8 parts of organic silicon resin containing silicon hydroxyl, 2.8 parts of plasticizer, 1.6 parts of ether-group kaolin, 1.6 parts of sodium methyl silicate, 0.6 part of licorice oil, 1 part of coupling agent and 0.6 part of antioxidant;
the Gleditsia sinensis modified polyethylene is linear low density polyethylene modified with Gleditsia sinensis extract, and the preparation method comprises cleaning Gleditsia sinensis, drying, pulverizing to 80-100 mesh, and averagely dividing into three powder materials, wherein the first powder material is obtained by subjecting Gleditsia sinensis to 8kGy60Irradiating for 20 seconds by Co-gamma rays to obtain an irradiated material for later use; then, leaching the second part of powder in hot water for 30 minutes in an ultrasonic instrument at the temperature of 88 ℃ under the condition that the weight ratio of the material to the liquid is 1:8, filtering to obtain a first filtrate, adding an irradiation material and the third part of powder into the first filtrate, continuing to leach for 30 minutes, filtering to obtain a mixed filtrate, and performing butterfly centrifugation, ultrafiltration and rotary evaporation on the mixed filtrate to obtain a paste;
mixing prepared raw materials while stirring according to the principle of equivalent incremental increase, drying for 35 minutes at the temperature of 75 ℃ after uniformly mixing, mixing the dried materials into a molten state at the temperature of 225 ℃, cooling in water at the temperature of 12 ℃ after extruding and forming a film to obtain a solid film, cutting the solid film into flat filaments, weaving into a plastic woven bag by using a circular weaving machine, receiving the material by using a material receiving machine, sending the plastic woven bag into a bag cutting machine, cutting, sewing and packaging to obtain a finished product.
Wherein, the hydroxyl on the silicon hydroxyl of the silicone resin containing the silicon hydroxyl accounts for 2.4 percent of the total amount of the silicone resin; the organic silicon resin is methyl vinyl silicon resin; the plasticizer is acetyl trioctyl citrate;
the preparation method of the gleditsia sinensis modified polyethylene comprises the following steps: mixing linear low-density polyethylene, a gleditsia sinensis extract, maleic anhydride and an initiator according to a weight ratio of 75:3:2:0.3, carrying out melt extrusion in a double-screw extruder, wherein the temperature of the double-screw extruder and a screw is 190 ℃, the rotating speed of the screw is 160 revolutions per minute, and the retention time in the double screw is controlled to be 60 seconds; the initiator is azobisisoheptonitrile;
the preparation method of the licorice oil comprises the following steps: drying collected liquorice until the water content is lower than 3%, then crushing the liquorice into 200 meshes by using an ultrafine crusher to obtain liquorice ultrafine powder, immersing the liquorice ultrafine powder in wild tea oil with the weight 1.5 times that of the liquorice ultrafine powder in the wild tea oil, soaking the liquorice ultrafine powder for 10 hours in a dark condition, heating the liquorice ultrafine powder to 80 ℃, extracting the liquorice powder for 20 minutes, cooling the liquorice powder, standing and percolating the liquorice powder for 12 hours to fully filter the liquorice powder, and obtaining filtrate, namely the liquorice oil;
the plasticizer is epoxy butyl furoate; the coupling agent is a mercaptotriethoxysilane coupling agent; the antioxidant is 2, 2' -methylene di (4-methyl-6-tert-butylphenol).
Wherein, the60The irradiation distance when the first powder is irradiated by Co-gamma rays is 12 cm.
The yellowness of the plastic woven bag prepared by the invention is 0.1, the light transmittance reaches more than 80 percent, and the multidirectional tensile load is 735.4N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 86.9 percent, and the yellowness is 0.4.
Setting a control group 1, removing the gleditsia sinensis modified polyethylene in the example 1, and keeping the rest content unchanged; the yellowness of the plastic woven bag prepared by the invention is 0.3, the light transmittance reaches more than 80 percent, and the multidirectional tensile load is 715.2N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 76.5%, and the yellowness is 0.6.
Setting a comparison group 2, removing the silicone resin containing the silicon hydroxyl in the example 1, and keeping the rest content unchanged; the yellowness of the plastic woven bag prepared by the invention is 0.1, the light transmittance reaches more than 82 percent, and the multidirectional tensile load is 702.4N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 75.8%, and the yellowness is 2.8.
Setting a comparison group 3, removing the ether-group kaolin in the example 1, and keeping the rest content unchanged; the yellowness of the plastic woven bag prepared by the invention is 0.3, the light transmittance reaches over 78 percent, and the multidirectional tensile load is 728.5N/50 mm; after 144 hours of alternating experiments of 8 hours of irradiation exposure at 60 ℃, 0.63W/m and 4 hours of non-radiative condensation exposure at 50 ℃, the multidirectional tensile composite retention rate is 73.5%, and the yellowness is 1.4.
Claims (9)
1. A method for improving the strength of a transparent plastic woven bag is characterized by comprising the following steps: preparing the following raw materials by weight: 70-80 parts of polypropylene particles, 6-10 parts of low-density polyethylene particles, 12-18 parts of gleditsia sinensis modified polyethylene, 4-8 parts of silicone resin containing silicon hydroxyl, 2.2-2.8 parts of plasticizer, 1.6-3.4 parts of ether-based kaolin, 0.8-1.6 parts of sodium methyl silicate, 0.6-1.2 parts of licorice oil, 1-2 parts of coupling agent and 0.2-0.6 part of antioxidant;
the Gleditsia sinensis modified polyethylene is linear low density polyethylene modified by Gleditsia sinensis extract, and the preparation method of the Gleditsia sinensis extract comprises cleaning Gleditsia sinensis, drying, pulverizing to 80-100 mesh, and averagely dividing into three powder materials, wherein the first powder material is irradiated by 60 Co-gamma ray with dosage of 8-16kGy for 20-30 s, and the irradiated material is obtained for standby application; then, leaching the second part of powder in hot water for 30 minutes in an ultrasonic instrument at the temperature of 88-92 ℃ and the feed liquid weight ratio of 1:8-12, filtering to obtain a first filtrate, adding an irradiation material and a third part of powder into the first filtrate, continuing leaching for 30 minutes, filtering to obtain a mixed filtrate, and performing butterfly centrifugation, ultrafiltration and rotary evaporation on the mixed filtrate to obtain a paste;
mixing the prepared raw materials while stirring according to the principle of equivalent incremental increase, drying for 35-45 minutes at the temperature of 75-85 ℃ after uniformly mixing, mixing the dried materials into a molten state at the temperature of 225-235 ℃, cooling in water at the temperature of 12-16 ℃ after extruding and forming a film to obtain a solid film, cutting the solid film into flat filaments, weaving the flat filaments into plastic woven bags by using a circular weaving machine, receiving the materials by a material receiving machine, feeding the materials into a bag cutting machine, cutting, sewing and packaging to obtain the finished product.
2. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the hydroxyl groups on the silicon hydroxyl groups of the silicone resin containing silicon hydroxyl groups account for 0.8 to 2.4 percent of the total amount of the silicone resin.
3. The method for improving the strength of the transparent plastic woven bag according to claim 2, wherein the silicone resin is one of methyl silicone resin, phenyl silicone resin, methyl phenyl silicone resin, hydrogen-containing silicone resin, methyl vinyl silicone resin or silicone resin with linear carbon chain length of C2-C8.
4. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the plasticizer is any one of tributyl citrate, trioctyl citrate or acetyl trioctyl citrate.
5. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the preparation method of the gleditsia sinensis modified polyethylene comprises the following steps: mixing linear low-density polyethylene, the gleditsia sinensis extract, maleic anhydride and an initiator according to the weight ratio of 75-85:2-3:1-2:0.3-0.5, carrying out melt extrusion in a double-screw extruder, wherein the temperature of the double-screw extruder and a screw is 160-190 ℃, the rotating speed of the screw is 160-200 r/min, and the retention time in the double screw is controlled to be 60-80 seconds.
6. The method as claimed in claim 5, wherein the initiator is one of azobisisobutyronitrile, azobisisovaleronitrile, azobisisoheptonitrile and azobiscyclohexyl carbonitrile.
7. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the licorice oil is prepared by the following steps: drying collected liquorice to the water content of less than 3%, then crushing the liquorice to 200 meshes by using an ultrafine crusher to obtain liquorice ultrafine powder, immersing the liquorice ultrafine powder in wild tea oil with the weight 1.5 times of that of the liquorice ultrafine powder, soaking the liquorice ultrafine powder for 8 to 10 hours in a dark condition, heating the liquorice ultrafine powder to 80 to 90 ℃, extracting the liquorice ultrafine powder for 20 minutes, cooling the liquorice, standing and percolating the liquorice for 12 hours to fully filter the liquorice, and obtaining filtrate, namely the liquorice oil.
8. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the plasticizer is any one of epoxy acetyl linseed methyl ester, epoxy bran oil acid butyl ester, epoxy silkworm pupa oil acid butyl ester, epoxy soybean oil acid octyl ester, 9, 10-epoxy stearic acid octyl ester; the coupling agent is one of a mercapto trimethoxy silane coupling agent and a mercapto triethoxy silane coupling agent; the antioxidant is 2, 2' -methylene di (4-methyl-6-tert-butylphenol).
9. The method for improving the strength of the transparent plastic woven bag according to claim 1, wherein the irradiation distance when the first powder is irradiated by the 60 Co-gamma ray is 12-18 cm.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4912148A (en) * | 1988-06-21 | 1990-03-27 | Tong Yang Nylon Co., Ltd. | Thermoplastic elastomeric resin compositions and process for preparing the same |
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| CN106883517B (en) * | 2017-04-21 | 2019-03-19 | 浙江海威包装有限公司 | A kind of reinforced plastics woven bag material |
| CN107663337A (en) * | 2017-11-13 | 2018-02-06 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of stretch-proof compound braided bag and preparation method thereof |
| CN107805345A (en) * | 2017-11-13 | 2018-03-16 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of anti-skidding high-temperature resistance plastice woven bag composition of raw materials |
-
2018
- 2018-06-21 CN CN201810640422.3A patent/CN108715659B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912148A (en) * | 1988-06-21 | 1990-03-27 | Tong Yang Nylon Co., Ltd. | Thermoplastic elastomeric resin compositions and process for preparing the same |
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