CN1173515A - Biological degradable plastic products and its prodn. method - Google Patents
Biological degradable plastic products and its prodn. method Download PDFInfo
- Publication number
- CN1173515A CN1173515A CN 96110904 CN96110904A CN1173515A CN 1173515 A CN1173515 A CN 1173515A CN 96110904 CN96110904 CN 96110904 CN 96110904 A CN96110904 A CN 96110904A CN 1173515 A CN1173515 A CN 1173515A
- Authority
- CN
- China
- Prior art keywords
- plastics
- starch
- grams
- high hydrophobicity
- properties
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A biodegradable plastic product is made up from high-molecular, high-hydrophobicity synthetic starch, ester of fatty acid, modifier and oxidation promoter through mixing them with auxiliary materials, melting, extrusion granulating, blow moulding, calendering and vacuum shaping, and features no environmental pollution of its used product.
Description
The present invention relates to a kind of plastics and manufacture method thereof of many degradation functions.
Existing plastics because economical and practical, be easy to processing, use very extensive.But traditional synthetic prestige material is owing to the character of itself is difficult to be degraded by biological.It is rotten promptly can not go mouldy.Therefore, the pollution problem of plastic garbage is serious day by day, has caused global concern.
Add natural macromolecular material a certain proportion of, that can degrade for biology in the existing synthesized polymer material that can not degrade for biology, as starch, Mierocrystalline cellulose, protein, chitin etc., the product of gained just can be degraded by biology.But this class natural macromolecular material all is a highly-hydrophilic, and synthesized polymer material commonly used all is highly hydrophobic.Consistency extreme difference between the two, physical strength descends greatly after the blend.Once adopted many methods in order to increase consistency various countries scientist: for example make the starch silanization or make it and handle with isocyanic ester; Perhaps graft copolymerization one deck acrylate or vinyl acetate on starch, but that these methods have is quite expensive, and the poor effect that has it seems that the starch hydrophobicity after the modification is still not enough.
We handle starch or the former powder of grain that contains a large amount of starch and obtain high hydrophobicity starchiness material through hydrophobizations.Its hydrophobicity is greatly improved, and is better with the synthetic macromolecule consistency.For photodegradation and the chemical catalysis degradation property that improves it, we have also added fatty acid ester, properties-correcting agent and hydrogenation promotor and some other additives.Its main component is (weight ratio):
Synthesized polymer material 40-88%
High hydrophobicity starchiness material 10-40%
Fatty acid ester 0.5-5%
Properties-correcting agent 0-5
Hydrogenation promotor 0-0.5%
Our used synthesized polymer material has polyethylene (comprising high-density and new LDPE (film grade)), polypropylene, polystyrene and polyvinyl chloride.Our used high hydrophobicity starchiness material is with W-Gum, potato starch, sweet potato starch, wheat starch and Starch rice, and main component is that the former powder of grain of starch such as Semen Maydis powder, rice meal, wheat-flour are handled the good product of hydrophobicity that gets through streamlined.
Our used fatty acid ester is methyl esters, ethyl ester, monoglyceride, triglyceride level, various crude vegetal and hydrogenation products thereof, the Yelkin TTS of the saturated or unsaturated fatty acids of C12-C22 and two or more mixture in them.
Our used properties-correcting agent is the organic peroxy compound.As benzoyl hydroperoxide, the adjacent dioctyl phthalate of two peroxide, dibenzoyl peroxide and hydrogen phosphide cumene etc.
Our used oxidation promotor is stearate, oleate or the naphthenate of manganese, iron, zinc, cobalt.Except above-mentioned major ingredient, also have other auxiliary agents such as lubricant, releasing agent and boron-containing compound commonly used in the composition sometimes.
Also can add filler again in above-mentioned composition as required, increase and hope agent and tinting material, the amount of these compositions does not count in the above-mentioned proportioning.
Product of the present invention can be colourless or near colourless translucent, also can add filler as required and tinting material changes its color and transparency.It can be soft and the film of favorable elasticity is arranged along with the change of composition, also can make section bars such as vessel with solid shape or pipe, rod, plate.
Product of the present invention is dry and do not have and can use repeatedly under the sunlight point-blank condition and intensity is constant substantially.Contact with damp soil in case abandon will go mouldy earlier, broken then, decompose fully finally and disappear, and do not generate any objectionable constituent.If do not contact damp soil but under daylight, tan by the sun yet and can degrade at leisure.Therefore, on the ground or underground it can not pollute.
It is nontoxic that product of the present invention also has an advantage, so its goods can be used for food product pack.
Below in conjunction with embodiment technology of the present invention is further described, but of the present inventionly is not limited only to the following example and should be as the criterion with claims.Example 1:
11 kilograms of poly-new LDPE (film grade)s, 11 kilograms of high hydrophobicity W-Gums, Oleum Gossypii semen 500 grams, Yelkin TTS 100 grams, Zinic stearas 100 grams, 1 kilogram of paraffin wax, glycerine 400 grams, stearic acid 100 grams, borax 10 grams mix.Earlier with homogenizer stirring at normal temperature 15 minutes.Change this compound in twin screw extruder granulation: screw rod long (L) is (D) ratio directly: i.e. L/D=25/1～30/1: screw speed: 200～250rpm: 130～180 ℃ of temperature: pressure 30-70kg/cm
2: extrude under these conditions, fervent, the air-cooled pellet that promptly gets 2.5 millimeters sizes, be masterbatch.
Get this masterbatch and add 2 kilograms of new LDPE (film grade)s for 1 kilogram.Be injection molded into cup with the twin screw injection moulding machine.Die head temperature is 130 ℃.This hopes the material cup contain high hydrophobicity starch 15.2%.This glass is embedded in the moist soil behind the fortnight, and the major part on its surface has been grown mildew.Example 2:
Get 2 kilograms of the masterbatch of example 1, add 1 kilogram of new LDPE (film grade).Be injection molded into cup with the twin screw injection moulding machine.130 ℃ of die head temperatures.This cup contains high hydrophobic W-Gum 30.3%.Be embedded in the damp soil after two weeks, almost all surfaces covers with mildew.Example 3:
Get 6 kilograms of polypropylene, 1.5 kilograms of high hydrophobicity potato starches, winterized stearin 200 grams, manganese stearate 10 grams, paraffin wax 200 grams, stearic acid 50 grams, 1.5 kilograms of borax 30 grams and talcum powder, put into homogenizer height under 130 ℃ of conditions and stirred 20-30 minutes, cold slightly by aforementioned condition, make particulate material-masterbatch of 2.5 millimeters with twin screw extruder.Make lunch box with this particle with single screw injection molding machine.This product contains high hydrophobicity starch material 15.8%, has stronger hardness.Be embedded in the damp soil behind the fortnight, the major part on surface has been grown mould class.Example 4:
Get 2 kilograms of polystyrene, high hydrophobicity rice meal 800 grams, refining soya-bean oil 100 grams, Yelkin TTS 20 grams, peroxybenzoic acid 50 grams, and iron naphthenate 5 grams stirred 30 minutes in homogenizer, when temperature reaches 130 ℃, coldly slightly make about 2.5 millimeters particulate material-masterbatch with twin screw extruder by preceding method.
Make plate with this particle with injection moulding machine.This dish is embedded in the wetting soil fortnight rear surface major part has grown mildew.Broken after eight months, fragment becomes black.It is also broken after eight months to be placed on outdoor plate in addition, and the fragment grey is broken at a touch, no longer includes physical strength.Example 5:
Get 8.6 kilograms of high density polyethylene(HDPE)s, 1.2 kilograms of high hydrophobicity wheat starches, rapeseed oil 50 grams, stearic acid 10 grams, manganese naphthenate 10 grams stirred 30 minutes in 130-140 ℃ in homogenizer.Selling cold changes in the forcing machine in 170 ℃ of extruding pelletizations.Air-cooled earnestly about 2 millimeters particulate material.Is 25 microns film with this particulate material at the common thickness that is blow molded into.Its longitudinal tensile strength is 15MPa after tested, and the longitudinal fracture elongation is 130%; Transverse tensile strength is 11MPa, and the transverse breakage elongation is 520%.Be embedded in the damp soil behind the fortnight, the mildew area accounts for 48% of the total area.After six months, only can find some small leftovers.Example 6:
Get 8.13 kilograms of new LDPE (film grade)s, 1.6 kilograms of high hydrophobicity W-Gums, methyl stearate 100 grams, Yelkin TTS 20 grams, cobalt naphthenate 20 grams, paraffin wax 80 grams, stearic acid 20 grams, borax 10 grams.Temperature reaches 130 ℃ in homogenizer, and is cold slightly, changes in the forcing machine, makes about 2 millimeter-sized particles material-masterbatch by above-mentioned extrusion condition.On common blown film, be blow molded into thick 25 microns film with this particulate material.Recording its longitudinal tensile strength is 12MPa, and the longitudinal fracture elongation is 110%, and transverse tensile strength is 10MPa, and the transverse breakage elongation is 370%.Be embedded in the damp soil behind the fortnight, the mildew area accounts for completely dissolve behind 68%, six month of total surface area.
Advantage of the present invention is:
1. the product that makes of the present invention can degrade by biological, and chemistry is degraded, also can be under high light branch slowly Separate. Solved the problem of environmental pollution of existing plastics.
2. function admirable, ability boiling water, anti-low temperature, again nontoxic, use very extensive.
3. the starting material source is abundant, and cheap, manufacturing process is simple, and very high economic benefit and social benefit are arranged.
Claims (8)
1, a kind of plastics of being degraded by microorganism, UV-light, chemical catalyst is characterized in that its main component is: synthesized polymer material, high hydrophobicity starchiness material, fatty acid ester, properties-correcting agent and oxidation promotor.Their weight percent is:
Synthesized polymer material 40-88%
High hydrophobicity starchiness material 10-40%
Aliphatic polyester 0.5-5%
Properties-correcting agent 0.0-5%
Oxidation promotor 0.0-0.5%
2, a kind of plastics as claimed in claim 1 is characterized in that being degraded by Institute of Micro-biology in wetting soil: go mouldy earlier, broken then, final completely dissolve is in environment.Also can shine down simultaneously and slowly decompose at high light.So environmentally safe.
3, a kind of plastics as claimed in claim 1 is characterized in that used synthesized polymer material is polyethylene, polypropylene, polystyrene or polyvinyl chloride etc.
4, a kind of plastics as claimed in claim 1 is characterized in that used high hydrophobicity starchiness material, are the former powder of grain of main component for the starch of various different sourcess or with starch, the product that gets through the hydrophobization processing.
5, a kind of plastics as claimed in claim 1, it is characterized in that used aliphatic ester is methyl esters, ethyl ester, monoglyceride, the triglyceride level of the saturated or unsaturated fatty acids of C12-C22, crude vegetal or its hydrogenation products, lecithin and two or more mixture in them.
6, a kind of plastics as claimed in claim 1 is characterized in that its properties-correcting agent is the organic peroxy compound, as benzoyl hydroperoxide, two peroxide phthalic acid, dibenzoyl peroxide, isopropyl benzene hydroperoxide and composition thereof.
7, a kind of plastics as claimed in claim 1 is characterized in that oxidation promotor wherein is stearate, oleate or the naphthenate of iron, manganese, zinc, cobalt.
8, a kind of plastics as claimed in claim 1 is characterized in that earlier constitutive material being mixed in proportion, and make masterbatch with twin screw extruder, granulation then.Again with masterbatch with after a certain proportion of synthetic macromolecule mixes, with blowing, injection moulding, extrude, method such as calendering, press mold, vacuum forming is processed into the plastics of desired shape, or has the film product of various purposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96110904 CN1173515A (en) | 1996-08-13 | 1996-08-13 | Biological degradable plastic products and its prodn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96110904 CN1173515A (en) | 1996-08-13 | 1996-08-13 | Biological degradable plastic products and its prodn. method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1173515A true CN1173515A (en) | 1998-02-18 |
Family
ID=5120959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96110904 Pending CN1173515A (en) | 1996-08-13 | 1996-08-13 | Biological degradable plastic products and its prodn. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1173515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129638C (en) * | 1999-03-19 | 2003-12-03 | 北京清大亚太科技研究中心 | Degradeable resin composition and its preparation and application |
| CN1308394C (en) * | 2002-04-22 | 2007-04-04 | 诺瓦蒙特股份公司 | Biodegradable polyesters obtained by reactive extrusion |
-
1996
- 1996-08-13 CN CN 96110904 patent/CN1173515A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129638C (en) * | 1999-03-19 | 2003-12-03 | 北京清大亚太科技研究中心 | Degradeable resin composition and its preparation and application |
| CN1308394C (en) * | 2002-04-22 | 2007-04-04 | 诺瓦蒙特股份公司 | Biodegradable polyesters obtained by reactive extrusion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9765205B2 (en) | Macrophyte-based bioplastic | |
| KR101436916B1 (en) | Eco-friendly Injection molded article by using plant biomass powder and method of the same | |
| RU2352597C1 (en) | Biodegradable granular polyolefin blend and method of production | |
| CN103547628A (en) | Molded articles of starch-polymer-wax-oil compositions | |
| CA2722866A1 (en) | Polymeric compositions and articles comprising polylactic acid and polyolefin | |
| KR101214983B1 (en) | Bio Plastics and Method for Producing Thereof | |
| US20140296390A1 (en) | Starch-Polymer-Oil Compositions, Methods Of Making And Using The Same | |
| US20030092793A1 (en) | Process for the preparation of biodegradable resin | |
| KR102129008B1 (en) | Plastic composition using oyster chells and manufacturing method of artificial shell for oyster farming comprising the plastic composition | |
| CN112778723A (en) | Starch-based degradable desorption tube material and preparation method thereof | |
| CN1114653C (en) | Biologically degradable resin composition and its preparation and application | |
| KR20150073593A (en) | High strength carbon neutral bio-plastics film using wheat bran and preparing method thereof | |
| CN106916372A (en) | A kind of starch-based degradable biological plastics and preparation method thereof | |
| CN1173515A (en) | Biological degradable plastic products and its prodn. method | |
| KR20160147394A (en) | Pellet available to complex degrade and rapidly become low-molecular substance for containing double bond and its preparing method | |
| KR101191850B1 (en) | Method on Manufacturing Bio-degradable Chaff Pellet and Chaff Pellet itself | |
| KR20130051840A (en) | Eco-friendly bio based pellet with plant biomass and method of the same | |
| CN116891623A (en) | Biological full-degradable material and preparation method thereof | |
| KR102377749B1 (en) | A biodegradable polymer complex using wood flour and a method for manufacturing the same | |
| CN102153785A (en) | Starch-based biodegradable environment-friendly plastic | |
| KR101327480B1 (en) | Bio based Garbage Bag and Method for Producing Thereof | |
| KR102204708B1 (en) | Multi-degradable polyolefin-based resin composition and manufacturing method of the composition | |
| KR100493647B1 (en) | Biodegradable Film | |
| KR20150111822A (en) | An eco-friendly living vessel using biomass and a mehtod for producing the same | |
| KR101636053B1 (en) | Resin Composition Comprising Egg-shell Powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1043895 Country of ref document: HK |