CN1500827A - High performance degradation promoter and biodegradable amylum plastic products suitable for the same - Google Patents
High performance degradation promoter and biodegradable amylum plastic products suitable for the same Download PDFInfo
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- CN1500827A CN1500827A CNA021395179A CN02139517A CN1500827A CN 1500827 A CN1500827 A CN 1500827A CN A021395179 A CNA021395179 A CN A021395179A CN 02139517 A CN02139517 A CN 02139517A CN 1500827 A CN1500827 A CN 1500827A
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Abstract
The present invention is efficient degradation promoter for biodegradable starch-plastic product and the biodegradable starch-plastic product. The efficient degradation promoter consists of animal grease and oil containing certain amount of enzyme gene and has the advantages of small use amount and high degradation promoting effect. The biodegradable starch-plastic products include two series of degradable resins and plastic products and specifically include packing film, mulching resin and other products, hard tableware resin and other products, hard foamed tableware, soft foamed packing resin and products, etc.
Description
Content of the present invention belongs to the preparing technical field of chemical industry articles for use, relate to a kind of preparation of environmental type heavy chemicals, particularly a kind of efficient degradation accelerating agent of biodegradable starch plastic goods and Biodegradable starch plastic product thereof, comprise two series of degradative resin and its plastics, specifically operation is packing film, farmland film resin and its various products, hard sheet food and drink tool resin and its various products, hard foamed food or beverage container, soft blister pack product resin and its various products etc.
The disposable plastic goods that provide in the market, all belong to the product that is difficult to degrade as farmland film, seedling-raising cup, amortizing packaging material, beverage cup, utensils for snack, shopping bag, refuse bag etc., because the usage quantity of these products increases gradually in recent years, to such an extent as to form " white " public hazards, cause secular environmental pollution, influence the eubiosis.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 exist 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 degradative plastics is the mode that advocate the most this area.Existing degradative plastics technology mainly contains photodegradation, biological degradation and optically and biologically degrading three classes.Degradation speed, the degree of depth and the homogeneity of photodegradation, optically and biologically degrading plastics that adds photosensitizers is all poor, the also non-practicality of environmental organism degraded of products waste.Biodegradable starch plastic is divided into and directly adds starch-type and treated starch type, and degraded inductive phase of treated starch type degradative plastics is long and effect is relatively poor; The degradation property of degradative plastics that directly adds high-content starch is good, the usefulness height of its minimizing, innoxious, resource utilization, and the environmental organism degraded of products waste is practical, thereby is also praised highly most.
In being 93109978.1 Chinese patent file, the patent No. disclosed " a kind of biodegradable amyloid polymeric composition and preparation method thereof ", the easy degraded blend that its combination ingredient comprises the macromolecular material that is made of polyethylene (PE), polypropylene (PP), polystyrene (PS), Vinyl Acetate Copolymer petrochemical industry synthetic resins such as (PVAC), is made of natural polymer starch, increasing component that constitutes by ethylene-acrylic acid copolymer (EAA) and the auxilliary thing of joining of starch that constitutes by polyvalent alcohol, plant wet goods.In this kind of degradable starch composition, petrochemical industry synthetic resins is to be difficult for the degraded component, but it is the main body of plastics, bears the physical and mechanical properties of goods and promptly uses performance; Starch is the component of easily degrading, and can bring out the degraded of synthetic resins, and the content high degradability can be got well but obviously reduced use properties; The auxilliary thing of joining of starch is than also easily degraded of starch, not only had plasticising, dispersion, interface active function but also a tool to promote Degradation, but its higher content limited the end-use performance of goods to a great extent.
As degradative plastics, except guaranteeing degradation property, also must guarantee use properties, manufacturing process feasibility and the cost-price feasibility of its goods.Starch content is 30%～80% in the different varieties plastics of above-mentioned 93109978.1 patented technology manufacturings, though degradation property is good but use properties is not all right, only be adjusted at 20%～40% o'clock and just can satisfy service requirements substantially, nonetheless also to occur starch content every now and then higher and use properties is poor, on the low side and use properties is raised the undesirable problem of back degradation property, obviously produced the biased phenomenon that starch content just causes degradation property and use properties.In addition, the auxilliary short usefulness of falling of thing of joining of starch with degraded fall out effect is low, and its consumption criticizes with starch content and join, i.e. also being raise by low by low its consumption that raises along with amount of starch, urging to fall usefulness is consistent with goods starch content-degradation property, unconditionally regulates operation separately.Because the degradation accelerating agent of degraded should be the same with the catalyzer of chemical reaction, content is low and short to fall the usefulness height, so the auxilliary thing of joining of starch is not to be authentic degradation accelerating agent, only is to bring out speed faster than the starch role because of its degraded.
The objective of the invention is to overcome the particularly existing technology shortcoming of 93109978.1 patented technologies of prior art, provide a kind of and have low short efficient degradation accelerating agent and the assembly thing thereof that falls the high characteristics of usefulness of consumption, thereby reach the requirement that strengthens degraded starch plastics practicality.
Characteristics of the present invention be by select efficient degradation accelerating agent and make its with starch etc. easily degradation material combine the biased of the degradation property that exists with the adjusting prior art and use properties, selection operation is handled by engineering experiment according to biological degradation mechanism and at different plastic prods.The Biodegradable starch plastic product comprises starch-resin and two series of its plastics, and starch-resin is the tailored version thermoplastic resin, comprises that packing film is resin dedicated, farmland film resin dedicated, hard sheet food and drink tool and foamed food or beverage container are resin dedicated etc.; The degradative plastics goods mainly are the disposable plastic articles for use, comprise all kinds of packing bags, farmland film, mess-tin, bowl, dish, beverage cup and filling, liner, protective packaging articles for use etc.The technology of the present invention promptly is to select out in the character of aspects such as further investigation degradative plastics product material, assembly and physical configuration, this degradation accelerating agent contains some amount by material and sends out the tallow oil of enzyme gene and constitute, comprise seven kinds of tallow oil, suet oil, cattle and sheep fatty oil, swine fat oil, bone fat oil, fish tallow oil and oxypolymerization fish tallow wet goods, in the enforcement according to different degradative plastics products from wherein selecting for use a kind of or two kinds of compositions.Because above-mentioned tallow oil material all is not only easily to have degraded but also tool is suitably sent out the natural resource product of enzyme function, it has the enzyme bacterium effect that self produces, thereby they can bring out and promote starch effectively, assist the degraded of joining thing and synthetic resins.In general, different varieties gene content difference, it promotes that the usefulness of degraded is also different.
Technology of the present invention preparation is the manufacturing that efficient degradation accelerating agent is used for the Biodegradable starch plastic product, adopts directly to add and two kinds of technical matters modes of master batch material adding, can operate at actual product batch and kind different amts in the enforcement.
1, direct adding mode of the present invention is suitable for the manufacturing of the big and single relatively product of kind of product lot quantity, comprises the prescription of the Biodegradable starch resin that is used to prepare packing film, farmland film etc. and the operation of its goods.
1.1 the component of resin and the weight percentage of each component:
Polyvinyl resin 59.0～75.0
W-Gum 15.0～25.0
Increasing component EAA 3.7～6.6
The auxilliary thing 5.3～8.8 of joining of starch
Efficient degradation accelerating agent 0.6～1.0.
1.2 resin manufacture: with general mixing machine polyvinyl resin, increasing component EAA being mixed evenly is pellet, and auxilliary to join that thing and efficient degradation accelerating agent be mixed evenly be powder with W-Gum, starch with high-speed stirring mixer; The twin screw extruder that just adopts different usefulness at starch content with pellet and powder in proportion feeding carry out the heat fusing blend and process-extrude-stretch-cut into granular resin.
1.3 the film product are made: adopt extrusion blow molding machine to blow manufactured and cook a meal and mould film with flat squeezing into, thickness and width carry out type according to the articles for use demand to be selected and regulates operation, carries out bag and printing etc. then.
2, master batch material adding mode of the present invention is suitable for the manufacturing of many products relatively of the little and kind of product lot quantity, comprises the prescription of the Biodegradable starch resin that is used to prepare packing film, farmland film etc. and the operation of its goods.
2.1 the component of degradation accelerating agent master batch material and the weight percentage of each component:
Polyethylene pellet 40～60
Polyethylene or polypropylene powder 20～40
Efficient degradation accelerating agent 18～23.
2.2 the preparation of degradation accelerating agent master batch material: with high-speed stirring mixer with polyethylene or polypropylene powder and degradation accelerating agent is mixed evenly and suitably plasticizing serve as the strong mixed thing of grain; Adopt twin screw extruder with polyethylene pellet in proportion feeding carry out the heat fusing blend and process-extrude-stretch-cut into the degradation accelerating agent master batch material.
2.3 the degradation accelerating agent master batch material is used for thin film fabrication: select starch content Biodegradable starch resin on the low side for use, select the consumption of joining the degradation accelerating agent master batch material according to this resin assembly and film articles for use thickness etc.; Starch-resin and degradation accelerating agent master batch material added in proportion be mixed in the mixing machine evenly, adopt extrusion blow molding machine to blow manufactured and cook a meal and mould film, produce difform film (bag) by the articles for use demand with flat squeezing into.
Compared with prior art, the advantage that the technology of the present invention had is both suitably to reduce starch content and has improved use properties, safeguards the good degradation property of former higher starch content again.The Biodegradable starch plastic goods that adopt this efficient degradation accelerating agent to make comprise degradative plastics goods such as starch film resin, the hard sheet resin of starch and starch foaming resin, and the weight percentage of efficient degradation accelerating agent is selected between 0.6%～2.2% in its material.Followingly be illustrated respectively according to the actual product type.
1, Degradable Starch Resin film article,, eakiness thin according to physical configuration and be beneficial to degradation treatment causes starch content lower, but the mediation of starch content still be obvious to the influence of its use properties, should take an amount of degradation accelerating agent to regulate.The goods that add efficient degradation accelerating agent, starch content reduces 〉=5%, and use properties significantly improves, and degradation property does not descend.According to making the different of thin-film technique and its goods thickness, the weight content per-cent number of degradation accelerating agent is 0.6%～1.4% promptly feasible.
2, the hard sheet articles of starch-resin, thick, closely knit and be unfavorable for degradation treatment according to physical configuration, cause starch content higher, its influence to use properties is bigger, should take an amount of degradation accelerating agent to regulate.The goods that add efficient degradation accelerating agent, starch content reduce number greater than 6%, and the mechanical property of goods improves, and strong property improves, and is especially better for the bigger hard sheet cutlery box effect of volume, and degradation property does not descend yet.According to making the different of hard blade technolgy and its goods thickness, the weight content per-cent number of degradation accelerating agent is 0.8%～2.2% promptly feasible.
3, starch-resin foaming product according to physical configuration porous, bulk and be beneficial to degradation treatment, cause starch content low slightly, but the mediation of starch content is more outstanding to the influence of its use properties, should take an amount of degradation accelerating agent to regulate.The goods that add efficient degradation accelerating agent, starch content reduces 〉=5%, and use properties significantly improves, and degradation property does not descend.According to soft foaming, the different of product type and foaming operation technology, goods foam expansion of foaming firmly, the weight content per-cent number of degradation accelerating agent is 0.6%～1.8% promptly feasible.
Biodegradable starch plastic goods of the present invention are taked to concentrate one's efforts and are regulated the degradation accelerating agent of operation, and the low and short performance height that falls of consumption has solved the biased or contradiction of degradation property and use properties well.The raising of plastics use properties is that the reduction of starch content also can alleviate the technology burden of resin manufacture because the suitable reduction of starch content forms.But the amount of downgrading of starch must be suitably, and starch content must not be lower than 13% in the goods in general.Because degradation accelerating agent is not only easily degraded but also has the natural product of suitably sending out the enzyme function, its consumption in plastics also must be regulated suitably, otherwise will produce bad phenomenon and form non-practicability.To this, can suitably increase the active high or active low composition of degradation accelerating agent and regulate.
Claims (7)
1, a kind of efficient degradation accelerating agent that is used for the Biodegradable starch plastic goods is characterized in that this degradation accelerating agent is made of 1～2 kind of following tallow oil: tallow oil, suet oil, cattle and sheep fatty oil, swine fat oil, bone fat oil, fish tallow oil, oxypolymerization fish tallow oil.
2, the Biodegradable starch resin of making according to the described efficient degradation accelerating agent of claim 1 is characterized in that it is made up of the material of following weight percent:
Polyvinyl resin 59.0～75.0
W-Gum 15.0～25.0
Increasing component EAA 3.7～6.6
The auxilliary thing 5.3～8.8 of joining of starch
Efficient degradation accelerating agent 0.6～1.0.
3, the degradation accelerating agent master batch material of making according to the described efficient degradation accelerating agent of claim 1 is characterized in that it is made up of the material of following weight percent
Polyethylene pellet 40～60
Polyethylene or polypropylene powder 20～40
Efficient degradation accelerating agent 18～23.
4, the Biodegradable starch plastic product material of making according to the described efficient degradation accelerating agent of claim is characterized in that containing in the product material weight percent number and is 0.6～2.2 efficient degradation accelerating agent.
5, Biodegradable starch plastic product material as claimed in claim 4 is characterized in that said material is the biodegradable starch-plastics thin-film material, contains the weight percent number in this material and be 0.6～1.4 efficient degradation accelerating agent.
6, Biodegradable starch plastic product material as claimed in claim 4 is characterized in that said material is the hard sheet articles material of starch-resin, contains percentage composition in this material and be 0.8～2.2 efficient degradation accelerating agent.
7, Biodegradable starch plastic product material as claimed in claim 4 is characterized in that said material is a starch-resin foaming product material, contains percentage composition in this material and be 0.6～1.8 efficient degradation accelerating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139517 CN1239594C (en) | 2002-11-13 | 2002-11-13 | High performance degradation promoter and biodegradable amylum plastic products suitable for the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139517 CN1239594C (en) | 2002-11-13 | 2002-11-13 | High performance degradation promoter and biodegradable amylum plastic products suitable for the same |
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| Publication Number | Publication Date |
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| CN1500827A true CN1500827A (en) | 2004-06-02 |
| CN1239594C CN1239594C (en) | 2006-02-01 |
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| CN 02139517 Expired - Fee Related CN1239594C (en) | 2002-11-13 | 2002-11-13 | High performance degradation promoter and biodegradable amylum plastic products suitable for the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750714A (en) * | 2015-11-20 | 2017-05-31 | Pep许可有限公司 | Prepare it is biodegradable/biodegradable/can bio-digestion plastics method |
| CN107434868A (en) * | 2016-05-25 | 2017-12-05 | 鸿明环保科技股份有限公司 | Biodegradable foamed material and its product |
| CN107778892A (en) * | 2016-08-25 | 2018-03-09 | 纳米科学有限公司 | Preparing can bio-regeneration, degraded, the method for decomposition and digestion peptide polyolefin plastics |
-
2002
- 2002-11-13 CN CN 02139517 patent/CN1239594C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750714A (en) * | 2015-11-20 | 2017-05-31 | Pep许可有限公司 | Prepare it is biodegradable/biodegradable/can bio-digestion plastics method |
| CN107434868A (en) * | 2016-05-25 | 2017-12-05 | 鸿明环保科技股份有限公司 | Biodegradable foamed material and its product |
| CN107778892A (en) * | 2016-08-25 | 2018-03-09 | 纳米科学有限公司 | Preparing can bio-regeneration, degraded, the method for decomposition and digestion peptide polyolefin plastics |
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| Publication number | Publication date |
|---|---|
| CN1239594C (en) | 2006-02-01 |
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