CN101200558A - Bodegradable manihot starch based material and product thereof - Google Patents
Bodegradable manihot starch based material and product thereof Download PDFInfo
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- CN101200558A CN101200558A CNA2006101051858A CN200610105185A CN101200558A CN 101200558 A CN101200558 A CN 101200558A CN A2006101051858 A CNA2006101051858 A CN A2006101051858A CN 200610105185 A CN200610105185 A CN 200610105185A CN 101200558 A CN101200558 A CN 101200558A
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- tapioca
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Abstract
The present invention relates to a preparation of bio-degradative cassava starch group material for producing disposal plastic products, comprising cassava starch, polypropylene or polythylene, low-density high-pressure polythylene, linear low-density high-pressure polythylene, thylene-vinyl acetate copolymer, titanium white powder, etc. The present invention has the advantages of low cost of raw materials, good degradation effect, simple production process and easy promotion and application. The products made of the cassava starch group material include disposal catering container and utensil, packaging container, packaging membrane, medical equipment, agricultural membrane, etc.
Description
Affiliated technical field
Content of the present invention belongs to the preparing technical field of chemical materials, relates to a kind of preparation and goods thereof of environmental type biological-degradable starch powder material.
Background technology
In recent years, along with people life style is changed to " consumption-orientation " by " thrifty type ", the usage quantity of disposable plastic commodity increases considerably.The application of a large amount of plastics brings huge benefit and convenient on the one hand industrial and agricultural production and people's lives, also brings serious pollution to ecotope on the other hand, forms " white " public hazards.Solve white pollution, can take the different measure operation according to national conditions, method one commonly used at present is to recycle, the 2nd, and burning disposal, the 3rd, adopt degradative resin/plastics, but they all have some problems and limitation in actually operating.Disposable plastic refuse reclamation difficulty, the limitation of Li Yonging is very big again, can not form to reclaim and the balance of utilizing, and the poor quality of regenerate can occur.The plastic garbage Pintsch process is made gasoline, kerosene etc., and clean and material classification are difficult, and energy expenditure is big, and it is few and the valency height is difficult to generally apply in a short time to obtain output.The burning of plastic garbage had both consumed the oxygen in the atmosphere, can produce a large amount of pollution substances again, as malicious person's Dioxins in oxynitride, oxycarbide and the poison etc.Comprehensive, the technology of biodegradable plastic is the mode that advocate the most this area.In China, the research and development of Biodegradable starch sill start from the beginning of the eighties in last century, in recent years along with " white pollution " is on the rise.Country is strengthening quickening to the attention and the development speed of this problem.But, still be in experimental summary and improve the stage because the starch amount of filling is low.The subject matter one of its existence is the manufacturing cost height, and the degraded goods exceed more than 15% than non-degraded goods cost; The 2nd, there are problems such as sewage discharge in the modification of manufacturing process complexity and starch; The 3rd, the degraded goods are generally dosed photosensitizers and starch in plastics, adopt the dual degradation method of light or organisms, but just technical so far also unresolved starch amount of filling surpasses 60% this difficult problem, and these have all restricted applying of degraded goods to a great extent.In addition, though the disposable paper products tableware of Shi Yonging has substituted a part of plastics disposable making on the articles for use in the market, but it also exists five following aspect problems that restriction is promoted: the one, and the raw material of paper product mainly is a timber, need to consume a large amount of china natural resources timber in short supply, cause waste; The 2nd, papermaking will produce waste water and topsoil, and in this respect improvement work does not at present catch up with, and causes very big loss; The 3rd, the manufacturing cost height, the manufacturing cost of a general dixie cup is more than 2.5 times of same volume plastic cup; The 4th, though Hard copy body degradable is in purposes such as grease-proof and waterproof, most tablewares surface all scribbles plastics or grease-proof and waterproof agent etc., and these materials are nondegradable; The 5th, this based article generally all is not suitable for heating in microwave oven.
Summary of the invention
The objective of the invention is to the problem that prior art exists is solved, so provide that a kind of raw materials cost is low, good degrading effect, production technique is simple and Bodegradable manihot starch based material that is easy to apply and the corresponding articles of making according to this material.
Starch-based material of the present invention be a kind of be main ingredient with tapioca (flour) (tapioca starch), with degradable auxiliary agent (comprising phase solvent that is made of low-density high-pressure polyethylene and linea low density high-pressure polyethylene and the coupling molecule that is made of ethylene-vinyl acetate copolymer), filler (titanium dioxide), toughener polyolefine (polyethylene or polypropylene) is auxiliary material, the new degradable material system that forms through the processing of modern technologies science.Cassava is cash crop, in many areas, China south and countries in Southeast Asia such as Thailand, Malaysia plantation is arranged more, have the output height, of good quality, plantation is easy to characteristics, main application is edible and is used for processing wine and citric acid etc. at present.Be subjected to the narrow influence of weather and range of application, China's cassava plantation amount is less relatively, but the tapioca (flour) price of returning from external import also hangs down much more always than the domestic W-Gum price of continuing to use for a long time now, with the tapioca (flour) is raw material production Biodegradable material and goods, will use the new approach of developing for it undoubtedly.
Bodegradable manihot starch based material of the present invention is mainly by comprising tapioca (flour) (tapiocastarch), polypropylene or polyethylene (polgropylene or polyethylene), low-density high-pressure polyethylene (low density polgropylene LDPE), linea low density high-pressure polyethylene (linear lowdensity polgropylene LLDPE), and ethylene-vinyl acetate copolymer (ethylene vinylacetate copolymer EVA) titanium dioxide (titanium pigment) forms at interior six kinds of materials, and each material composition shared weight percent in product is:
Tapioca (flour) 70%～85%,
Polypropylene (PP) or polyethylene (PE) 5%～15%,
Low-density high-pressure polyethylene (LDPE) 4%～8%,
Linea low density high-pressure polyethylene (LLDPE) 1%～2%,
Ethylene-vinyl acetate copolymer (EVA) 3%～8%,
Titanium dioxide 1%～2%.
In technical scheme of the present invention, owing on prescription and component, make the content of tapioca (flour) material reach 70%～85%, thereby realized a kind of technical breakthrough, can make starch-based material and goods have better biological degradability.This is that the degradation speed of material will improve greatly because in a single day starch content is higher than 60%.Starch is that glucose unit passes through the natural polymer that α-1.4 or α-1.6 glycosidic link form, under the normal temperature after burying soil, under the effect of microbe endo-amylase, be hydrolyzed into glucose, circulation further is oxidized to carbonic acid gas and water through TCA.Because the degraded of starch molecule, a spot of polyethylene or polypropylene molecular chain also can rupture thereupon, form tiny particle or powder.Academic research document announcement according to Japan and Sweden: in starch/polyolefin blend system, not only exist two kinds of effects of biological degradation and non-biodegradation, also have the effect of " synergy mutually " simultaneously, thereby can reach all purposes of degraded of material.Bury native experimental result through normal temperature and show, the goods made from Bodegradable manihot starch based material of the present invention begin to become fragile 20, degrade in 30 days and can all degrade in 60%, 8～12 months.Class material products such as the paper mould that generally uses with present this area, stalk, W-Gum are compared, and not only cost is low, appearance color is pure white, smell is fragrant, and every performance all wants excellent.
The actual fabrication technology of goods of the present invention is: after described each component materials mixing and stirring; put into the high speed mixing roll mixing powdering material of heating; the powder-material of mixing one-tenth sent into carry out stretching and granulation in the double-screw extruding pelletizing unit; with injection moulding machine pellet is carried out injection moulding or by the compressing tablet unit sheet material made in the pellet calendering; pass through high-energy-rate forming machine then successively; foaming machine and film balance carry out plastic uptake with injection molding material or sheet stock; foaming; after membrane is handled; the final goods that form; its production technique is terse; refine; easily large-scale production; do not need to carry out pre-gelatinization or chemical modification; do not need with an organic solvent yet; water; steam etc.; thereby can not produce any waste water in process of production; waste gas; waste residues etc. " three wastes " do not produce pollution to environment.Formed goods comprise disposable tableware container and vessel (fast food lunch-box, dish, cup, cutter, fork, spoon, chopsticks ...), packaging vessel (household electrical appliance packaging foam material, fruit wrapping material, food bag, refuse bag), packing film, medical devices and plastic film for agricultural use etc.Heat resisting temperatures such as its degraded cutlery box, dish are 130 ℃, and optimum places heated food, beverage etc. in the microwave oven, has excellent oil resistant and water resistance; Its cold-resistant temperature is-20 ℃, can be in refrigerator fast, the beverage of frozen product, ice etc.In addition, the recovery goods of this material can be used for cultivated mushroom, grow flower or pass through the application of foaming as wrapping material after crushed.
Embodiment
Below with reference to embodiment content of the present invention is described further, but the present invention is not limited in following embodiment
Embodiment: a kind of actual contents weight percent prescription of Bodegradable manihot starch based material of the present invention is:
Tapioca (flour) 80%,
Polypropylene (powder) 8%,
Low-density high-pressure polyethylene 5%,
Linea low density high-pressure polyethylene 1.5%,
The ethylene-vinyl acetate copolymer 4% that contains 30%～35%VA,
Titanium dioxide 1.5%.
The preparation process of this embodiment material is: after above six kinds of component materials mixing and stirring; put into the SRL-Z type high speed mixing roll mixing powdering material of heating; again the powder-material of mixing one-tenth is sent in the TE-75 type double-screw extruding pelletizing machine and carry out with dicing machine strip being cut into pellet behind the tie rod; by injection moulding machine pellet is carried out injection moulding or by the compressing tablet unit sheet material made in the pellet calendering; then successively by high-energy-rate forming machine (can select SG-650 type high-energy-rate forming machine for use); foaming machine and film balance carry out plastic uptake with injection molding material or sheet stock; foaming; membrane finally forms goods after handling.
Claims (3)
1. Bodegradable manihot starch based material is characterized in that it is made up of the material of following weight per-cent:
Tapioca (flour) 70%～85%,
Polypropylene or polyethylene 5%～15%,
Low-density high-pressure polyethylene 4%～8%,
Linea low density high-pressure polyethylene 1%～2%,
Ethylene-vinyl acetate copolymer 3%～8%,
Titanium dioxide 1%～2%.
2. according to the described Bodegradable manihot starch based material of claim 1, it is characterized in that it is made up of the material of following weight per-cent:
Tapioca (flour) 80%,
Polypropylene 8%,
Low-density high-pressure polyethylene 5%,
Linea low density high-pressure polyethylene 1.5%,
The ethylene-vinyl acetate copolymer 4% that contains 30%～35%VA,
Titanium dioxide 1.5%.
3. the disposable biodegradable tapioca (flour) product of making according to the described tapioca (flour) sill of claim 1 is characterized in that said product comprises disposable tableware container and vessel, packaging vessel, packing film, medical devices and plastic film for agricultural use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2006101051858A CN101200558B (en) | 2006-12-15 | 2006-12-15 | Bodegradable manihot starch based material and product thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101051858A CN101200558B (en) | 2006-12-15 | 2006-12-15 | Bodegradable manihot starch based material and product thereof |
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| CN101200558A true CN101200558A (en) | 2008-06-18 |
| CN101200558B CN101200558B (en) | 2010-12-15 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798401A (en) * | 2010-03-30 | 2010-08-11 | 陈俊 | Canna edulis ker plastic and production method thereof |
| CN102408585A (en) * | 2011-08-10 | 2012-04-11 | 安徽天瑞生态科技有限公司 | Injection molding starch base degradable product formula and production technology thereof |
| CN102942770A (en) * | 2012-12-10 | 2013-02-27 | 中国热带农业科学院湛江实验站 | Completely-biodegradable agricultural mulching film |
| CN103700804A (en) * | 2013-10-15 | 2014-04-02 | 双登集团股份有限公司 | Automatic water supplementing method for valve control lead acid battery |
| CN106220899A (en) * | 2016-07-23 | 2016-12-14 | 东莞市方中运动制品有限公司 | A kind of anti-deep-sea fouling organism degradable culturing net and preparation technology thereof |
| CN110013093A (en) * | 2018-01-08 | 2019-07-16 | 上海上福塑料制品有限公司 | A kind of durable round lunch box product of multi-purpose environmental protection and its formula and production technology |
| CN112480533A (en) * | 2020-11-25 | 2021-03-12 | 浙江绿汐环保科技有限公司 | Starch-based biodegradable material and preparation method and application thereof |
| CN113388163A (en) * | 2021-06-16 | 2021-09-14 | 贵州海跃食品包装有限责任公司 | Starch-based degradable lunch box and forming method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081203C (en) * | 1999-02-11 | 2002-03-20 | 天津丹海股份有限公司 | Preparation of mother material for biodegradable plastics |
| CN1127538C (en) * | 2000-07-13 | 2003-11-12 | 天津丹海股份有限公司 | Biologically degradable fibre level resin composition and its producing method |
| CN1532217A (en) * | 2003-03-25 | 2004-09-29 | 姜省民 | Biologically degradable manioc base material and product |
-
2006
- 2006-12-15 CN CN2006101051858A patent/CN101200558B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798401A (en) * | 2010-03-30 | 2010-08-11 | 陈俊 | Canna edulis ker plastic and production method thereof |
| CN101798401B (en) * | 2010-03-30 | 2012-03-21 | 陈俊 | Canna edulis ker plastic and production method thereof |
| CN102408585A (en) * | 2011-08-10 | 2012-04-11 | 安徽天瑞生态科技有限公司 | Injection molding starch base degradable product formula and production technology thereof |
| CN102942770A (en) * | 2012-12-10 | 2013-02-27 | 中国热带农业科学院湛江实验站 | Completely-biodegradable agricultural mulching film |
| CN103700804A (en) * | 2013-10-15 | 2014-04-02 | 双登集团股份有限公司 | Automatic water supplementing method for valve control lead acid battery |
| CN106220899A (en) * | 2016-07-23 | 2016-12-14 | 东莞市方中运动制品有限公司 | A kind of anti-deep-sea fouling organism degradable culturing net and preparation technology thereof |
| CN106220899B (en) * | 2016-07-23 | 2019-02-12 | 东莞市方中运动制品有限公司 | A kind of degradable culturing net of anti-deep-sea fouling organism and its preparation process |
| CN110013093A (en) * | 2018-01-08 | 2019-07-16 | 上海上福塑料制品有限公司 | A kind of durable round lunch box product of multi-purpose environmental protection and its formula and production technology |
| CN112480533A (en) * | 2020-11-25 | 2021-03-12 | 浙江绿汐环保科技有限公司 | Starch-based biodegradable material and preparation method and application thereof |
| CN113388163A (en) * | 2021-06-16 | 2021-09-14 | 贵州海跃食品包装有限责任公司 | Starch-based degradable lunch box and forming method thereof |
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| Publication number | Publication date |
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| CN101200558B (en) | 2010-12-15 |
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