CN102372858A - Preparation method for starch-based biodegradable plastic - Google Patents
Preparation method for starch-based biodegradable plastic Download PDFInfo
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Abstract
The invention discloses a preparation method for a starch-based biodegradable plastic. According to a formula, the starch-based biodegradable plastic comprises, by weight, 50 to 80 of a thermoplastic starch resin, 8 to 28 of fiber, 15 to 50 of a biodegradable material, 0 to 35 of a resin, 2 to 8 of a compatibilizer, 1 to 6 of a lubricant, 5 to 20 of superfine powder of an inorganic material and 1 to 6 of a foaming agent. The preparation method for the starch-based biodegradable plastic is as follows: the resin, the compatibilizer, the lubricant, superfine powder of the inorganic material, the thermoplastic starch resin, the biodegradable material and the foaming agent are respectively put into a temperature-controlled mixer in order and are mixed at a low speed at a temperature of 60 DEG C and then at a high speed at a temperature of 120 DEG C for 10 m, an obtained mixture is discharged for subsequent usage or delivered into a double screw extruder for melting granulation at a temperature of 120 DEG C to 170 DEG C, and a lay-by material of the starch-based biodegradable plastic is obtained. The material is molded with equipment by using the methods of extrusion drawing, hollowing, plastic sucking, injection molding, molding and the like; the material is biodegradable and environment friendly; the disposable products of the material, e.g., disposable tableware, shockproof and pressure reducing packaging, film sheets and the like, have the characteristics of no toxicity, health, environmental protection, low cost, high quality and performance, etc., and can be subjected to secondary processing.
Description
Technical field:
The present invention relates to the plastics field, relate in particular to the preparation method of starch-based degradable plastics.
Background technology:
Along with the propelling of human civilization, people's environmental consciousness is more and more stronger, and is green to clothing, food, lodging and transportion--basic necessities of life, environmental protection requirement is also increasingly high; And the plastics of pressing close to people's life enjoy human consumer's concern especially; Research staff's many nontoxic, harmless, pollution-free, degredation plastic new variety that released one after another are because its machine-shaping is convenient, bright in luster; Cost is low; Quality parameter is high, extensively answers the biological degradation friendly environment, fields such as disposable equipment such as the disposable tableware of use, shockproof decompression packing, thin-film sheet.Utilizing starch, fiber, biodegradable plastic material, inorganic materials ultrafine powder, resin etc. to form biodegradable plastic, is exactly a type in the goods such as nontoxic, health, environmental protection, cost are low, quality parameter height.
Summary of the invention:
The raw material of starch-based degradable plastics of the present invention is thermoplastic starch resin, biodegradable material, resin, expanding material, lubricant, inorganic materials ultrafine powder, fiber and whipping agent.Said thermoplastic starch resin or self-control thermoplastic starch resin; The softening agent of this resin is a polyvalent alcohol; Comprising glycerine, terepthaloyl moietie, glycol ether, sorbyl alcohol, sorbitol anhydride or wherein one or more of season amylalcohol, is 2: 1 like glycerine and terepthaloyl moietie ratio of mixture, and its consumption is with respect to the 20-50% of starch total amount; The thermoplastic starch resin prepares the like product that finished product maybe can be purchased Jiahe, Huaian environment protecting tableware technical division, parts by weight 50-80 earlier with general working method; Described fiber is rhodia, hydroxylated cellulose, methylcellulose gum, TKK 021, the mixture of one or more in the stalk more than modified natural vegetable fibre 100 orders, straw, reed bar, rice husk, wood chip, the pomace, parts by weight 8-28; Described Biodegradable material is POLYACTIC ACID, gather ester OH ether, Z 150PH, gather one or more the mixture in second lactone, the polyesteramide; Be poly (l-lactic acid), gather D-lactic acid, gather D like POLYACTIC ACID; A kind of or its mixture or its multipolymer in the L-lactic acid, parts by weight 15-50; Described resin be ethene-vinyl acetate EVA, chlorinatedpolyethylene CPE, PS PS one or more; Described expanding material is wherein one or more of titanic acid ester, aluminic acid ester, maleic anhydride, its parts by weight 2-8; Described lubricant is wherein one or more such as polyethylene wax, paraffin, amine hydroxybenzene, Zinic stearas, calcium stearate, its parts by weight 1-6; Described inorganic materials ultrafine powder is one or more the mixture in talcum powder, lime carbonate, titanium oxide, polynite, kaolin, the wilkinite, its parts by weight 5-20; Described whipping agent is one or more 1-6 wherein such as Cellmic C 121 AC, diisopropyl azodiformate DIPA, Diisopropyl azodicarboxylate ABN, p-toluene sulfonyl hydrazide TSH, sodium hydrogencarbonate.
It is characterized in that selecting earlier to be used to meet the raw-material weight umber that product performance require, thermoplastic starch resin or self-control thermoplastic starch resin and the vegetable fibre modification is subsequent use with expanding material; And then will: resin, expanding material, lubricant, inorganic materials ultrafine powder, fiber; Thermoplastic starch resin, biodegradable material, whipping agent drop into respectively in the temperature control mixing machine successively, and low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 120 ℃ to 170 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.This material available devices is extruded method moulding such as pulling-on piece, hollow, plastic uptake, injection moulding, moulding; This material ability biological degradation friendly environment; Disposable equipment such as its product disposable tableware, shockproof decompression packing, thin-film sheet; Have characteristics such as nontoxic, health, environmental protection, cost are low, quality parameter height, but secondary processing.
Embodiment:
Embodiment 1: rhodia 20, vegetable fibre 8, talcum powder 10, titanium oxide 5, titanic acid ester 3, ethene-vinyl acetate 30, polyethylene wax 2, Zinic stearas 1, thermoplastic starch resin 80, POLYACTIC ACID 30, Cellmic C 121 2, sodium hydrogencarbonate 4; Drop into it in temperature control mixing machine respectively successively; Low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 120 ℃ to 160 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.
Embodiment 2: vegetable fibre 8, and titanium oxide 4, lime carbonate 6, hydroxylated cellulose 10, maleic anhydride 5, PS 20 gathers second lactone 15, amine hydroxybenzene 1, calcium stearate 1, thermoplastic starch resin 70, Cellmic C 121 5; Drop into it in temperature control mixing machine respectively successively; Low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 140 ℃ to 170 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.
Embodiment 3: methylcellulose gum 8, vegetable fibre 20, kaolin 5, aluminic acid ester 2, paraffin 2, Zinic stearas 2, thermoplastic starch resin 50, Cellmic C 121 3; Drop into it in temperature control mixing machine respectively successively; Low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 140 ℃ to 170 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.
Embodiment 4: vegetable fibre 8, talcum powder 10, lime carbonate 7, titanium oxide 3, titanic acid ester 2, Z 150PH 15, polyethylene wax 2, calcium stearate 2, thermoplastic starch resin 70, Cellmic C 121 1; Drop into it in temperature control mixing machine respectively successively; Low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 140 ℃ to 170 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.
This material technology Recipe wide application of the present invention; Can require to carry out the best adjustment according to product performance; General-purpose equipment is extruded method moulding such as pulling-on piece, hollow, plastic uptake, injection moulding, moulding, this material ability biological degradation friendly environment, disposable equipment such as its product disposable tableware, shockproof decompression packing, thin-film sheet; Have characteristics such as nontoxic, health, environmental protection, cost are low, quality parameter height, but secondary processing.
Claims (7)
1. the preparation method of a starch-based degradable plastics, it is a main raw material by the thermoplastic starch resin, is that auxiliary material is formed with fiber, Biodegradable material, auxiliary agent etc.But the high-quality product of production biological degradation environmentally-friendly plastic, biological degradation rate is up to more than nine layers.
2. thermoplastic starch weight resin umber 50-80 according to claim 1; The softening agent of this resin is a polyvalent alcohol, comprises glycerine, terepthaloyl moietie, glycol ether, sorbyl alcohol, sorbitol anhydride or wherein one or more of season amylalcohol.
3. fiber according to claim 1 is rhodia, hydroxylated cellulose, methylcellulose gum, TKK 021; The mixture of one or more in modified natural vegetable fibre stalk, straw, reed bar, rice husk, wood chip, the pomace, parts by weight 8-28.
4. Biodegradable material according to claim 1 is POLYACTIC ACID, gather ester OH ether, Z 150PH, gather one or more the mixture in second lactone, the polyesteramide.
5. auxiliary agent according to claim 1 is compositions such as resin, expanding material, lubricant, inorganic materials ultrafine powder, whipping agent.
6. auxiliary agent according to claim 5 is resin, expanding material, lubricant, inorganic materials ultrafine powder, whipping agent, is respectively: resin is one or more its parts by weight of mixture 0-35 of ethene-vinyl acetate EVA, chlorinatedpolyethylene CPE, PS PS; Expanding material is wherein one or more of titanic acid ester, aluminic acid ester, maleic anhydride, its parts by weight 2-8; Lubricant is wherein one or more such as polyethylene wax, paraffin, amine hydroxybenzene, Zinic stearas, calcium stearate, its parts by weight 1-6; The inorganic materials ultrafine powder is one or more the mixture in talcum powder, lime carbonate, titanium oxide, polynite, kaolin, the wilkinite, its parts by weight 5-20; Whipping agent is one or more 1-6 wherein such as Cellmic C 121 AC, diisopropyl azodiformate DIPA, Diisopropyl azodicarboxylate ABN, p-toluene sulfonyl hydrazide TSH, sodium hydrogencarbonate.
7. the preparation method of the said starch-based degradable plastics of claim 1 is characterized in that selecting earlier to be used to meet the starting material that product performance require, thermoplastic starch resin or self-control thermoplastic starch resin and the vegetable fibre modification is subsequent use with expanding material; And then will: resin, expanding material, lubricant, inorganic materials ultrafine powder, fiber; Thermoplastic starch resin, biodegradable material, whipping agent drop into respectively in the temperature control mixing machine successively, and low speed mixing material temperature is mixed into 120 ℃ of material temperature extremely at a high speed for 60 ℃; Mixing time 10 minutes; Subsequent use or the material of the 40 ℃ of blowings of lowering the temperature is sent in the twin screw extruder, 120 ℃ to 170 ℃ following melt pelletization, promptly becomes the starch-based degradable plastics lay-by material.This material available devices is extruded method moulding such as pulling-on piece, hollow, plastic uptake, injection moulding, moulding; This material ability biological degradation friendly environment; Disposable equipment such as its product disposable tableware, shockproof decompression packing, thin-film sheet; Have characteristics such as nontoxic, health, environmental protection, cost are low, quality parameter height, but secondary processing.
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| CN103159984A (en) * | 2013-04-08 | 2013-06-19 | 华东理工大学 | All-degradable thermoplastic starch/polylactic acid blend material and preparation method thereof |
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| CN103421214A (en) * | 2013-07-04 | 2013-12-04 | 南京林业大学 | Method for preparing crop straw reinforced starch plastics through C6 oxidation |
| CN103923354A (en) * | 2014-05-08 | 2014-07-16 | 山东大学 | Full-degradation cushion packaging material and preparing method thereof |
| CN103937185A (en) * | 2014-05-13 | 2014-07-23 | 湖北省冠成生物降解塑料制品有限公司 | Full-biodegradable composite film and preparation method thereof |
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| CN104231330A (en) * | 2014-09-12 | 2014-12-24 | 华南理工大学 | Completely-degradable composite material based on solid-phase grafting of bagasse and method for preparing completely-degradable composite material based on solid-phase grafting of bagasse |
| CN104356664B (en) * | 2014-09-24 | 2017-04-12 | 江西禾尔斯环保科技有限公司 | Micro-foaming hollow structural plate and processing technique thereof |
| CN104312182A (en) * | 2014-09-24 | 2015-01-28 | 江西禾尔斯环保科技有限公司 | Degradable foam packaging material and its preparation method |
| CN104356664A (en) * | 2014-09-24 | 2015-02-18 | 江西禾尔斯环保科技有限公司 | Micro-foaming hollow structural plate and processing technique thereof |
| CN104312182B (en) * | 2014-09-24 | 2017-11-10 | 江西禾尔斯环保科技有限公司 | Degradable foaming packaging material and preparation method thereof |
| CN104448489A (en) * | 2014-12-02 | 2015-03-25 | 国家电网公司 | Preparation process of degradable packaging plastic used for electric system |
| CN105885444A (en) * | 2015-04-09 | 2016-08-24 | 湖南工业大学 | Corn starch and straw fiber composite foam material and preparation method thereof |
| CN104817760A (en) * | 2015-04-17 | 2015-08-05 | 柳州蔚园塑料彩印包装有限责任公司 | Plastic packaging bag preparation method |
| CN104817709A (en) * | 2015-04-29 | 2015-08-05 | 桐城市福润包装材料有限公司 | Starch packaging film preparation process |
| CN104788737A (en) * | 2015-05-11 | 2015-07-22 | 湖州福泽鞋业有限公司 | Biodegradable shoe sole material and preparation method thereof |
| CN104892998A (en) * | 2015-05-22 | 2015-09-09 | 铜陵方正塑业科技有限公司 | Impact-resistant full-degradable plastic film and preparation method thereof |
| CN104892999A (en) * | 2015-05-22 | 2015-09-09 | 铜陵方正塑业科技有限公司 | High-water-resistance full-degradable plastic film and preparation method thereof |
| CN104893220A (en) * | 2015-05-22 | 2015-09-09 | 铜陵方正塑业科技有限公司 | Hydroxyapatite-modified full-degradable plastic film and preparation method thereof |
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| CN104910440A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Antibacterial starch-blended full-degradable plastic film and preparation method thereof |
| CN104927095A (en) * | 2015-05-27 | 2015-09-23 | 铜陵方正塑业科技有限公司 | Blended degradable thin film with high gas barrier property and preparation method for blended degradable thin film |
| CN104910436A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Flame-retardant plastic film capable of being completely degraded, and preparation method thereof |
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| CN104910434A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | High-efficiency oxygen-insulation water-insulation blended full-degradable plastic film and preparation method thereof |
| CN104910441A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Agriculture plastic film capable of increasing soil activity directly after degradation and preparation method thereof |
| CN104910427A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Double-degradable plastic film with high tensile strength, and preparation method thereof |
| CN104910430A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Full-degradable plastic film used for far-infrared food fresh-keeping and preparation method thereof |
| CN104910429A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Thermoplastic full-degradable plastic film with excellent processability and preparation method thereof |
| CN104910428A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Full-degradable plastic film with fluorescent effects, and preparation method thereof |
| CN104910435A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Photodegradable-biodegradable environmental-friendly plastic film and preparation method thereof |
| CN104927092A (en) * | 2015-05-27 | 2015-09-23 | 铜陵方正塑业科技有限公司 | Starch blended degradable plastic film with antistatic effect and preparation method for starch blended degradable plastic film |
| CN104927093A (en) * | 2015-05-27 | 2015-09-23 | 铜陵方正塑业科技有限公司 | Novel starch-polyvinyl alcohol blend fully-degradable plastic film and preparation method thereof |
| CN104910433A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | High temperature-resistant full-degradable plastic film and preparation method thereof |
| CN104927094A (en) * | 2015-05-27 | 2015-09-23 | 铜陵方正塑业科技有限公司 | High-starch-content polyvinyl alcohol-blended full-degradable plastic film and preparation method thereof |
| CN104893004A (en) * | 2015-05-27 | 2015-09-09 | 铜陵方正塑业科技有限公司 | Ramie stick reinforced starch-based fully-degradable plastic film and preparation method thereof |
| CN105001459A (en) * | 2015-05-27 | 2015-10-28 | 铜陵方正塑业科技有限公司 | Water-blocking and oil-blocking fully degradable plastic film used for food packaging and preparation method thereof |
| CN104910426A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Full-degradable plastic film taking surface hydrophobically modified starch as base material and preparation method thereof |
| CN104910432A (en) * | 2015-05-27 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Glass-fiber tension-resistant reinforced starch-polyvinyl alcohol blended full-degradable plastic film and preparation method thereof |
| CN104962094A (en) * | 2015-06-12 | 2015-10-07 | 庄展鹏 | Rice husk fiber and polylactic acid synthesized resin particle and production method thereof |
| CN105461967B (en) * | 2015-06-23 | 2017-12-08 | 湖南工业大学 | A kind of lightweight starch base high tenacity composite foam material |
| CN105461967A (en) * | 2015-06-23 | 2016-04-06 | 湖南工业大学 | Light starch-based high toughness composite foamed material |
| CN105086082A (en) * | 2015-08-31 | 2015-11-25 | 苏州新区佳合塑胶有限公司 | Biodegradable plastics |
| CN105400225A (en) * | 2015-11-25 | 2016-03-16 | 全椒祥瑞塑胶有限公司 | Degradable dishware |
| CN105440715A (en) * | 2015-11-25 | 2016-03-30 | 全椒祥瑞塑胶有限公司 | Manufacturing method of degradable tableware |
| CN105860563A (en) * | 2016-05-04 | 2016-08-17 | 太仓市源创包装材料厂 | Environment-friendly food packaging material capable of achieving high yield and preparation method thereof |
| CN105860147A (en) * | 2016-05-20 | 2016-08-17 | 苏州倍力特物流设备有限公司 | Enhanced starch based packaging composite material and preparation method thereof |
| CN106336676A (en) * | 2016-08-24 | 2017-01-18 | 安徽顺彤包装材料有限公司 | Degradable breakfast cake packaging material and preparation method thereof |
| CN106336530A (en) * | 2016-08-24 | 2017-01-18 | 安徽顺彤包装材料有限公司 | Antibacterial food packaging material and preparation method thereof |
| CN106397841A (en) * | 2016-08-31 | 2017-02-15 | 朱春英 | High-barrier biomaterial and preparation method thereof |
| CN106380632A (en) * | 2016-08-31 | 2017-02-08 | 朱春英 | Starch flow promoter and preparation method thereof |
| CN106366356A (en) * | 2016-08-31 | 2017-02-01 | 朱春英 | Tapioca starch resin and preparation method thereof |
| CN106366355A (en) * | 2016-08-31 | 2017-02-01 | 朱春英 | Starch composite material applicable to melt plasticizing extrusion and preparation method thereof |
| CN106633708A (en) * | 2016-08-31 | 2017-05-10 | 北海威德电子科技有限公司 | Plastic material used for laptop casing and processing method thereof |
| CN106366357A (en) * | 2016-08-31 | 2017-02-01 | 朱春英 | Starch biology base composite material and preparation method thereof |
| CN106349668A (en) * | 2016-08-31 | 2017-01-25 | 北海威德电子科技有限公司 | Plastic material for main machine shell and preparation method of plastic material |
| CN106589469A (en) * | 2016-11-09 | 2017-04-26 | 广西师范学院 | Naturally degradable fruit nursery stock pot for gardens and preparation method of pot |
| CN106633457A (en) * | 2016-12-22 | 2017-05-10 | 安徽乐金环境科技有限公司 | Degradable kaolin modified home appliance packaging material and preparation method thereof |
| CN106854298A (en) * | 2016-12-30 | 2017-06-16 | 东莞铭丰包装股份有限公司 | A kind of degradable biological matter fibrous composite and preparation method thereof and packing articles |
| CN107083075A (en) * | 2017-04-25 | 2017-08-22 | 贵州省玉态康环保餐具有限公司 | A kind of biodegradable stalk disposable product and preparation method thereof |
| CN107082945A (en) * | 2017-06-12 | 2017-08-22 | 太仓雅奥塑业有限公司 | A kind of environmentally-friendly plastic film |
| CN107556511A (en) * | 2017-09-21 | 2018-01-09 | 河南工业大学 | A kind of two one step preparation methods of starch foam plastics |
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| CN107602938A (en) * | 2017-09-21 | 2018-01-19 | 河南工业大学 | A kind of preparation method of starch/EVA syntactic foam |
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Application publication date: 20120314 |