CN1563162A - Starch based biodegradable flexible packing materials, and preparation method - Google Patents
Starch based biodegradable flexible packing materials, and preparation method Download PDFInfo
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- CN1563162A CN1563162A CN 200410017260 CN200410017260A CN1563162A CN 1563162 A CN1563162 A CN 1563162A CN 200410017260 CN200410017260 CN 200410017260 CN 200410017260 A CN200410017260 A CN 200410017260A CN 1563162 A CN1563162 A CN 1563162A
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- starch
- flexible packing
- packing material
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Abstract
A biological degradable soft packing material of starch base is a type of soft film packing material made of starch, plasticizer and filler. The material can be degraded thoroughly under natural condition after it is buried underground for 3-4 monthes.
Description
Technical field
The present invention relates to a kind of Biodegradable material, relate to a kind of starch-based bio degradable flexible packing material and preparation method thereof specifically.
Background technology
Along with the epoch advance, whole world plastics output has exceeded more than 100,000,000 tons/year, wherein 30% is used for packing, brought a large amount of rubbish owing to can not degrade after the short product of this life cycle uses to human habitat, growing plastics " garbage mountain " are more and more regarded threat to the ecosystem as for people, cause environmental pollution for a long time, thereby everybody wishes to have the flexible packing material of degraded fully to replace the Plastic Packaging Materials that can not degrade.
Summary of the invention
The technical issues that need to address of the present invention are to disclose a kind of starch-based bio degradable flexible packing material and preparation method thereof, to overcome the above-mentioned defective that prior art exists, separate and must not cause serious white pollution to environment for human survival by the degradative plastics wrapping material.
Technical scheme of the present invention:
A kind of starch-based bio degradable flexible packing material is a kind of film flexible packing material, and its component and weight percent content comprise:
Starch 50～80%
Softening agent 10～20%
Weighting agent 10～30%.
Said starch comprises a kind of or its mixture in W-Gum, wheat starch, tapioca (flour), sweet potato starch or the other plant starch;
Said softening agent comprises a kind of mixture in a kind of in sorbyl alcohol, polyvinyl alcohol or the direactive glyceride or itself and ethylene acrylic acid co polymer or the ethylene-vinyl acetate copolymer;
Said weighting agent comprises talcum powder or lime carbonate.
The weight percent content of recommending comprises:
Starch 60～70%
Softening agent 12～18%
Weighting agent 15～25%.
Film flexible packing material of the present invention, its thickness are 0.01～0.3mm, can further be processed into shopping bag, refuse bag, canopy film, mulch film and wrapping material of other product as required.
The preparation method of starch-base biodegradation flexible packing material of the present invention comprises the steps:
With the blend in the mixing roll of routine of above-mentioned raw material, extruding pelletization in forcing machine adopts conventional method to carry out blowfilm shaping then; The blending temperature control is 90～120 ℃; Film-forming temperature is 160～200 ℃, and film forming speed is 0.16-0.2M/S;
W-Gum based biodegradable disposable flexible packaging film material of the present invention has following characteristics:
1. outward appearance is light transparent in vain, any surface finish, nontoxic, harmless, free from extraneous odour, owing to use food grade materials, so sanitation and hygiene;
2. main raw material starch is a kind of natural macromolecular material, through with softening agent, compound blend modification by copolymerization after, have enough physical strengths and heat resistance, can satisfy the service requirements of shopping bag, packing bag, refuse bag and other products etc. fully;
3. used flexible packaging film, bag is because its starch content is higher, can degrade under field conditions (factors), biodegradation rate is fast, after testing, soil buries after 20 days and begins biological degradation at normal temperatures, can all degrade in 3～April, under the erosion in natural mould, wherein starch and softening agent become CO in 3-12 month in the use back
2And H
2The compound of O raw material inorganic materials gets back to also that soil receives in the large nature, is the comparatively desirable material of current preventing " white pollution " therefore; Film quality accord with Q B/T2461-1999 requirement.
4. production process is not used steam and organic solvent, and water coolant adopts recycle, does not produce waste water,waste gas and industrial residue; 5, production process can realize that mechanize, automatization, mass-producing, production cost are relatively low, is easier to marketing, the huge market demand.
Embodiment
Embodiment 1
Get 60 kilograms of W-Gums, 20 kilograms of polyvinyl alcohol, 20 kilograms of talcum powder, at mixing roll high speed batch mixing, the blending temperature control is 90 ℃, extruding pelletization, 160 ℃ of blowfilm shapings, film forming speed is 0.16M/S, making thickness is the W-Gum base biodegradation flexible packing material of 0.05mm.
Adopt the ASTMD5338-92 standard that the material that is obtained is detected, the result is as follows:
Soil buries after 20 days and begins biological degradation at normal temperatures, all degradeds in 3 months.
Adopt the QB/T2461-1999 standard to detect, the result is as follows:
Biological degradation rate is 26.0%.
Embodiment 2
Get 60 kilograms of W-Gums, 10 kilograms of sorbyl alcohols, 10 kilograms of 10 kilograms of ethylene acrylic acid co polymers, 10 kilograms of talcum powder, at mixing roll high speed batch mixing, the blending temperature control is 120 ℃, extruding pelletization, 200 ℃ of blowfilm shapings, film forming speed is 0.2M/S, making thickness is the W-Gum base biodegradation flexible packing material of 0.02mm.
Adopt the ASTMD5338-92 standard that the material that is obtained is detected, the result is as follows: soil buries after 20 days and begins biological degradation at normal temperatures, all degradeds in 3 months.
Adopt the QB/T2461-1999 standard to detect, the result is as follows:
Biological degradation rate is 26.0%.
Embodiment 3
Get 80 kilograms of wheat starches, 4 kilograms of polyvinyl alcohol, 3 kilograms of sorbyl alcohols, 3 kilograms of ethylene acrylic acid co polymers, 10 kilograms of lime carbonate are at mixing roll high speed batch mixing, the blending temperature control is 120 ℃, extruding pelletization, 200 ℃ of blowfilm shapings, film forming speed are that 0.18M/S makes the W-Gum base biodegradation flexible packing material that thickness is 0.03mm.
Adopt the ASTMD5338-92 standard that the material that is obtained is detected, the result is as follows: soil buries after 20 days and begins biological degradation at normal temperatures, all degradeds in 3 months.
Adopt the QB/T2461-1999 standard to detect, the result is as follows:
Biological degradation rate is 26.0%.
Claims (7)
1. starch-based bio degradable flexible packing material is characterized in that its component and weight percent content comprise:
Starch 50～80%
Softening agent 10～20%
Weighting agent 10～30%;
Said softening agent comprises a kind of mixture in a kind of in sorbyl alcohol, polyvinyl alcohol or the direactive glyceride or itself and ethylene acrylic acid co polymer or the ethylene-vinyl acetate copolymer;
Said talcum powder or lime carbonate.
2. starch-based bio degradable flexible packing material according to claim 1 is characterized in that, said starch comprises a kind of or its mixture in W-Gum, wheat starch, tapioca (flour), sweet potato starch or the other plant starch.
3. starch-based bio degradable flexible packing material according to claim 1 is characterized in that weight percent content comprises:
Starch 60～70%
Softening agent 12～18%
Weighting agent 15～25%.
4. according to claim 1,2 or 3 described starch-based bio degradable flexible packing materials, it is characterized in that, be a kind of film flexible packing material.
5. starch-based bio degradable flexible packing material according to claim 4 is characterized in that film flexible packing material thickness is 0.01～0.3mm.
6. according to the preparation method of each described starch-base biodegradation flexible packing material of claim 1～5, it is characterized in that comprising the steps:
With the blend in mixing roll of above-mentioned raw material, extruding pelletization in forcing machine adopts conventional method to carry out blowfilm shaping then.
7. method according to claim 6 is characterized in that, the blending temperature control is 90～120 ℃; Film-forming temperature is 160～200 ℃, and film forming speed is 0.16-0.2M/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017260 CN1563162A (en) | 2004-03-29 | 2004-03-29 | Starch based biodegradable flexible packing materials, and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017260 CN1563162A (en) | 2004-03-29 | 2004-03-29 | Starch based biodegradable flexible packing materials, and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1563162A true CN1563162A (en) | 2005-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200410017260 Pending CN1563162A (en) | 2004-03-29 | 2004-03-29 | Starch based biodegradable flexible packing materials, and preparation method |
Country Status (1)
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| CN (1) | CN1563162A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007134492A1 (en) * | 2006-05-16 | 2007-11-29 | Guangdong Shangjiu Biodegradble Plastics Co., Ltd | Fully biodegradable plastic resin, film article made therefrom and method for preparing the same |
| CN101649072B (en) * | 2009-09-22 | 2011-03-16 | 任伟 | Full-degradable biological material and film product thereof |
| CN104194064A (en) * | 2014-09-09 | 2014-12-10 | 青岛农业大学 | Corn starch composite membrane as well as preparation method and applications thereof |
| CN104211978A (en) * | 2014-09-09 | 2014-12-17 | 青岛农业大学 | Nanocrystalline composite membrane of pea starch and waxy corn starch and preparation method of nanocrystalline composite membrane |
| CN104814527A (en) * | 2009-08-14 | 2015-08-05 | 伊诺维亚薄膜有限公司 | Cigarette filter |
| CN107304258A (en) * | 2016-04-19 | 2017-10-31 | 河南工业大学 | A kind of preparation method of starch plastic |
| CN108034083A (en) * | 2017-12-26 | 2018-05-15 | 重庆嘉德塑料制品有限公司 | A kind of plastic film |
| CN109776880A (en) * | 2019-02-20 | 2019-05-21 | 山东师范大学 | A kind of production method of biodegradable starch base master batch |
| CN109867820A (en) * | 2019-02-20 | 2019-06-11 | 山东师范大学 | The production method of biodegradable starch base master batch |
| CN110862583A (en) * | 2019-11-29 | 2020-03-06 | 湖南工业大学 | Thermoplastic starch and preparation method thereof |
-
2004
- 2004-03-29 CN CN 200410017260 patent/CN1563162A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007134492A1 (en) * | 2006-05-16 | 2007-11-29 | Guangdong Shangjiu Biodegradble Plastics Co., Ltd | Fully biodegradable plastic resin, film article made therefrom and method for preparing the same |
| CN104814527A (en) * | 2009-08-14 | 2015-08-05 | 伊诺维亚薄膜有限公司 | Cigarette filter |
| CN104814527B (en) * | 2009-08-14 | 2020-08-21 | 福塔穆拉化工英国有限公司 | Cigarette filter |
| CN101649072B (en) * | 2009-09-22 | 2011-03-16 | 任伟 | Full-degradable biological material and film product thereof |
| CN104194064A (en) * | 2014-09-09 | 2014-12-10 | 青岛农业大学 | Corn starch composite membrane as well as preparation method and applications thereof |
| CN104211978A (en) * | 2014-09-09 | 2014-12-17 | 青岛农业大学 | Nanocrystalline composite membrane of pea starch and waxy corn starch and preparation method of nanocrystalline composite membrane |
| CN104211978B (en) * | 2014-09-09 | 2017-07-04 | 青岛农业大学 | Pea starch and waxy corn starch nanocomposite film and preparation method thereof |
| CN107304258A (en) * | 2016-04-19 | 2017-10-31 | 河南工业大学 | A kind of preparation method of starch plastic |
| CN108034083A (en) * | 2017-12-26 | 2018-05-15 | 重庆嘉德塑料制品有限公司 | A kind of plastic film |
| CN109776880A (en) * | 2019-02-20 | 2019-05-21 | 山东师范大学 | A kind of production method of biodegradable starch base master batch |
| CN109867820A (en) * | 2019-02-20 | 2019-06-11 | 山东师范大学 | The production method of biodegradable starch base master batch |
| CN110862583A (en) * | 2019-11-29 | 2020-03-06 | 湖南工业大学 | Thermoplastic starch and preparation method thereof |
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