CN1193026A - Base material capable of light degeradation and biological degradation - Google Patents
Base material capable of light degeradation and biological degradation Download PDFInfo
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- CN1193026A CN1193026A CN97100607A CN97100607A CN1193026A CN 1193026 A CN1193026 A CN 1193026A CN 97100607 A CN97100607 A CN 97100607A CN 97100607 A CN97100607 A CN 97100607A CN 1193026 A CN1193026 A CN 1193026A
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Abstract
The environmental photobiodegradable mothor material includes polyolefin resin, modified starch, photodegradation agent, oxidation accelerent, autoxidation agent, degradation control agent and calcium carbonate. Its preparation method includes the following steps: placing general starch in high-speed stirring machine, low-speed stirring to above 60 deg.C, adding coupling agent and high-speed mixing to modify the starch, mixing modified starch with polyolefin and assistants to obtain mixed material, then using special twin-screw extruder to make extrusion and granulation to make the mixed material into said invented cylindrical mother material with length of 3-4 mm and diameter of 2 mm. Said mother material can be matched with general polyolefin, and can be made into various photobiodegradable films by using general blow moulding equipment.
Description
The present invention relates to a kind of base material capable of light degeradation and biological degradation.
Plastics are widely used, for the mankind have brought civilization, for society has brought progress with its excellent performance, design in different poses and with different expressions.But it is after reaching application target and going out of use, and decades, goes up a century and all is difficult for degraded and disappearance, causes serious plastic garbage and social effects of pollution problem again, has formed new source of pollution.The environmental pollution that it causes, and to the influence of the biology social concern that become international.At present, the method for elimination plastic garbage mainly contains three kinds of methods: 1. reclaim; 2. heap buries; 3. burn.Recovery is about to waste and old real the collecting of moulding, and through classification, go-on-go, cleaning, granulation again, secondary processing becomes low-grade goods.But require the technology height during owing to recovery, output benefit is low, in fact reclaims very difficult; Heap buries because plastics can not decompose for a long time underground, and floor space is excessive, and influences Soil structure and do not gear to actual circumstances; Burn and then can produce a large amount of obnoxious flavoures, cause secondary pollution.
From the seventies, there are many researchists just to go in for the study to dissolve rapidly or decompose voluntarily or do not produce during burning the plastics-degradative plastics of obnoxious flavour abroad.This is the inexorable trend of plastics industry development, and the masterbatch of degraded by environment is the necessary former masterbatch of degradative plastics goods.
There is patent report in past, with pasted starch and graft blends and photodegradable aid and plastic blend, prepare a kind of degradable plastics, but because starch conversion complex process, the cost of equipment height, investment is big and unsuitable suitability for industrialized production simultaneously because treated starch stability and degraded controllability and degraded thoroughness are poor, is difficult to apply.
The objective of the invention is to provides a kind of base material capable of light degeradation and biological degradation for producing the degradative plastics goods, and it has the thoroughness of stability, the controllability in the degradation process and degraded in the processing, and is lower than common polyolefinic price.
The component of base material capable of light degeradation and biological degradation of the present invention comprises polyolefin resin, treated starch, photodegradable aid, prooxidant, autoxidator, degraded control agent, lime carbonate.
The proportioning of wherein said above-mentioned component is (in a weight part): polyolefin resin 15-40 part: treated starch 50-80 part: photodegradable aid 0.02-0.3 part: prooxidant 0.01-0.1 part: autoxidator 0.1-10 part: degraded control agent 0.02-0.2 part: lime carbonate 10-40 part.
Wherein said polyolefin resin comprises LDPE, LLDPE, HDPE, PP or PS etc.
Wherein said treated starch is common starch to be handled with silicane, metatitanic acid lipid, aluminic acid lipid coupling agent and low molecular hydrocarbon class make, wherein silicane, metatitanic acid lipid, aluminic acid lipid coupling agent and low molecular hydrocarbon class consumption were 0.5-5%, in 70-100 ℃ of following high-speed stirring 3-5 minute.
Wherein said lime carbonate is to make with processing such as fatty acid such as palmitic acid, stearic acid, 20 acid, and wherein the fatty acid consumption was 0.5-5%, in 70-100 ℃ of following high-speed stirring 3-5 minute.
Wherein said autoxidator is a plant oil, as soybean oil, Semen Maydis oil, Oleum Gossypii semen, vegetable seed wet goods.
Wherein said photodegradable aid is the ion salt of iron, as naphthoic acid iron, iron stearate, salicylic acid iron, ironic formiate, ironic acetate etc.
Wherein said prooxidant is fatty salt, as Zinic stearas, calcium stearate.
Wherein said degraded control agent is 2,6-di-t-butyl tetramethyl phenol or 2,4-dimethyl six tert.-butyl phenols.
The preparation method of base material capable of light degeradation and biological degradation provided by the present invention comprises: at first with fineness in the common starch below 10 microns joins the homogenizer that is warming up to the 70-80 degree, stirring at low speed to material starch temperature reaches more than 60 degree, dividing three adding 0.005-0.01% coupling agents to carry out high-speed mixing handled 5-10 minute, make after its modification and photodegradable aid, prooxidant, autoxidator, degraded control agent, the lime carbonate low speed mixing of 10-20% Polyolefin and 5-15% 10-15 minute, height stirs temperature and is controlled in 100 degree, makes compound; Then, compound is carried out extruding pelletization by special-purpose twin screw extruder in 140-200 degree scope, make the garden column type base material capable of light degeradation and biological degradation of the long 3-4mm of diameter 2mm.This masterbatch can cooperate with general purpose polyolefin, and adds other component, adopts common blow moulding equipment, makes the film of various light or organisms degradeds.
Base material capable of light degeradation and biological degradation of the present invention is except general degradable by light or organisms function, especially in masterbatch, added lime carbonate through the different ratios of special processing, make this masterbatch in preparation process, strengthen stability, in degradative plastics product degradation process, improved controllability, thoroughness.
This invention masterbatch is under physical environment, not only have the two degradation functions of general photo bio, and since add lime carbonate can be between 10-50% resize ratio arbitrarily, improved stability and the controllability in degradation process, thoroughness of degradable master batch in preparation process, compared with similar products simultaneously, its cost reduces about 30%, can carry on a shoulder pole high economic benefit greatly.This product applies to blow molding agricultural mulch film, industry, food product pack, refuse bag etc.Also adjustable carrier is widely used in PP and PS packing and disposable tableware goods.
Base material capable of light degeradation and biological degradation of the present invention is because the adding of autoxidator has not only improved biological degradation function in the degradation process, and it still is a kind of good softening agent, has improved the degradative plastics physical properties of articles.
The advantage of base material capable of light degeradation and biological degradation of the present invention is: production technique is simple; employing with starch and coupling agent and low molecular hydrocarbon class mixing in super mixer be hydrophobic starch; the complicated technology of original treated starch (starch-grafted blend) and the shortcoming of high production cost have been overcome; especially the lime carbonate that adds different ratios is in this masterbatch; the stability of its processing and the not property controlled in the degradation process have been strengthened; thoroughness; greatly reduce production cost (about 30%) simultaneously; improved economic benefit; the preparation of masterbatch is by a certain percentage with polyolefin resin; treated starch; photodegradable aid; prooxidant; autoxidator; the degraded control agent; lime carbonate is mixing through super mixer; again through the dual-screw pelletizer extrusion moulding; can obtain the base material capable of light degeradation and biological degradation of different model, be degradable mulch industry; food pack; refuse bag and disposable tableware for food and drink tool prepare necessary high-quality masterbatch.
In conjunction with three embodiment the present invention is described below by the prescription in the table 1, its technical indicator, blown film mechanical property and degradation property are shown in table 2, table 3, table 4, table 5: table 1 (proportioning of component (parts by weight are represented))
Table 2 base material capable of light degeradation and biological degradation technical indicator
Table 3 is blow molded into degraded overlay film mechanical property
Table 4 is blow molded into the aging phosphorus of degradable mulch and separates index
Table 5 is blow molded into the aging cracking index of refuse bag packing film
Sequence number | Project | Unit | Index |
1 | Outward appearance | White, any surface finish | |
2 | Shape | 2×3-4mm | |
3 | Melt index | g/10min | 2-4 |
4 | The granules of pigments degree | pq.cm 2/g | <2 (DF) value |
5 | Thermotolerance | Level | 5(20℃/10min) |
6 | Fusing point | ℃ | 120-130 |
7 | Dispersity | Be uniformly dispersed achromic point | |
8 | Resistance to migration | Level | 5(80℃6h) |
9 | Consumption | % | 15-50 |
The project sample | Tensile strength (Pa) | Elongation at break (%) | Angle tear strength (N/mm) | |||
PE mulch film (international SJ369-84) | Vertical | Horizontal | Vertical | Horizontal | Vertical | Horizontal |
>9.80 | >9.80 | >100 | >100 | >29.4 | >29.4 | |
Embodiment 1 | 19.0 | 15.3 | 190 | 688 | 98.5 | 124 |
Polyethylene film cover (light crop) | Test-fence shines | Simulation climate is aging | ||||
Cover time | Cracking time | Begin to split the time | Cracking time | Hour 20.4 (54 days) | Hour 35.8 (54 days) | Hour 56.8 (78 days) |
On May 4th, 95 | 50 days | On May 4th, 95 | 50 days | Retention rate 91-98% | Embrittlement | Powder |
Polyethylene film cover (light crop) | Simulation climate is aging | ||
Cover time | Cracking time | Hour 23.6 (32 days) | 30 hours (41 days) |
On May 4th, 95 | 34 days | Retention rate 82-88% | Retention rate is lower than 20% embrittlement |
Claims (10)
1, base material capable of light degeradation and biological degradation is comprising polyolefin resin, treated starch, photodegradable aid, prooxidant, autoxidator, degraded control agent, lime carbonate.
2, the described base material capable of light degeradation and biological degradation of claim 1, the proportioning of wherein said above-mentioned component is (in a weight part): polyolefin resin 15-40 part: treated starch 50-80 part: photodegradable aid 0.02-0.3 part: prooxidant 0.01-0.1 part: autoxidator 0.1-10 part: degraded control agent 0.02-0.2 part: lime carbonate 10-40 part.
3, the described base material capable of light degeradation and biological degradation of claim 1, wherein said polyolefin resin comprises LDPE, LLDPE, HDPE, PP or PS.
4, the described base material capable of light degeradation and biological degradation of claim 1, wherein said treated starch is with common starch, comprise W-Gum, sweet potato starch, eight any of several broadleaf plants starch or tapioca (flour)s, make with silicane, metatitanic acid lipid, aluminic acid lipid coupling agent and the processing of low molecular hydrocarbon class, wherein silicane, metatitanic acid lipid, aluminic acid lipid coupling agent and low molecular hydrocarbon class consumption were 0.5-5%, in 70-100 ℃ of following high-speed stirring 3-5 minute.
5, the described base material capable of light degeradation and biological degradation of claim 1, wherein said lime carbonate are to make with processing such as fatty acid such as palmitic acid, stearic acid, 20 acid, and wherein the fatty acid consumption was 0.5-5%, in 70-100 ℃ of following high-speed stirring 3-5 minute.
6, the described base material capable of light degeradation and biological degradation of claim 1, wherein said autoxidator is a plant oil, comprises soybean oil, Semen Maydis oil, Oleum Gossypii semen or rapeseed oil.
7, the described base material capable of light degeradation and biological degradation of claim 1, wherein said photodegradable aid is the ion salt of iron, comprises naphthoic acid iron, iron stearate, salicylic acid iron, ironic formiate or ironic acetate.
8, the described base material capable of light degeradation and biological degradation of claim 1, wherein said prooxidant is fatty salt, comprises Zinic stearas or calcium stearate.
9, the described base material capable of light degeradation and biological degradation of claim 1, wherein said degraded control agent are 2,6-di-t-butyl tetramethyl phenol or 2,4-dimethyl six tert.-butyl phenols.
10, the described base material capable of light degeradation and biological degradation of claim 1, wherein the preparation method comprises: at first with fineness in the common starch below 10 microns joins the homogenizer that is warming up to the 70-80 degree, stirring at low speed to material starch temperature reaches more than 60 degree, dividing three adding 0.005-0.01% coupling agents to carry out high-speed mixing handled 5-10 minute, make after its modification photodegradable aid with 10-20% Polyolefin and 5-15%, prooxidant, autoxidator, the degraded control agent, lime carbonate low speed mixing 10-15 minute, height stirs temperature and is controlled in 100 degree, makes compound; Then, compound is carried out extruding pelletization by special-purpose twin screw extruder in 140-200 degree scope, making diameter is the garden column type base material capable of light degeradation and biological degradation of the long 3-4mm of 2mm.
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CN97100607A CN1193026A (en) | 1997-03-06 | 1997-03-06 | Base material capable of light degeradation and biological degradation |
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CN97100607A CN1193026A (en) | 1997-03-06 | 1997-03-06 | Base material capable of light degeradation and biological degradation |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1074435C (en) * | 1999-06-22 | 2001-11-07 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
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 |
WO2002042378A1 (en) * | 2000-11-23 | 2002-05-30 | Hao Xu | A biodegradable composition for preparing table-ware, mulching film and package and method for preparing the same |
CN102408612A (en) * | 2011-11-23 | 2012-04-11 | 吴江明峰聚氨酯制品有限公司 | Photodegradable and biodegradable polyethylene plastic bag |
CN102796285A (en) * | 2011-05-27 | 2012-11-28 | 上海杰事杰新材料(集团)股份有限公司 | Double-degradation starch masterbatch and preparation method thereof |
US8383702B2 (en) | 2006-12-20 | 2013-02-26 | Saint-Gobain Ceramics & Plastics, Inc. | Composite materials having improved thermal performance |
CN104031302A (en) * | 2013-03-04 | 2014-09-10 | 中国科学院过程工程研究所 | Controllable oxidative-biological degradation plastic master batch and preparation method thereof |
US8846088B2 (en) | 2005-02-03 | 2014-09-30 | Takeda Nycomed As | Melt granulation of a composition containing a calcium-containing compound |
CN104369509A (en) * | 2014-12-11 | 2015-02-25 | 昆山加浦包装材料有限公司 | Degradable foamed and co-extruded PA barrier thin film |
CN104385698A (en) * | 2014-12-11 | 2015-03-04 | 昆山市张浦彩印厂 | Degradable PO foaming co-extruded composite thin film |
CN105219102A (en) * | 2014-06-11 | 2016-01-06 | 怀宁县宝友工贸有限公司 | A kind of production technique of Environment-friendlyplastic plastic bag |
CN106243454A (en) * | 2016-08-04 | 2016-12-21 | 安徽省中日农业环保科技有限公司 | A kind of master batch of biodegradable plastics particle |
CN106947179A (en) * | 2017-02-22 | 2017-07-14 | 阳光盛景(北京)生态科技股份有限公司 | A kind of degradative plastic film for filler of being degraded containing string |
CN107163369A (en) * | 2017-06-29 | 2017-09-15 | 吉林省农业科学院 | Peanut Special-purpose double-action unifies degradative plastic film |
CN107698857A (en) * | 2017-11-23 | 2018-02-16 | 马鞍山松鹤信息科技有限公司 | A kind of agricultural film material and its preparation technology |
CN111269466A (en) * | 2020-04-02 | 2020-06-12 | 李守本 | Plastic master batch, preparation method and plastic |
CN115011044A (en) * | 2022-06-08 | 2022-09-06 | 江苏冠春新材料科技有限公司 | Light/biological dual-degradation PS composite material and preparation method thereof |
-
1997
- 1997-03-06 CN CN97100607A patent/CN1193026A/en active Pending
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CN1074435C (en) * | 1999-06-22 | 2001-11-07 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
WO2002042378A1 (en) * | 2000-11-23 | 2002-05-30 | Hao Xu | A biodegradable composition for preparing table-ware, mulching film and package and method for preparing the same |
US8846088B2 (en) | 2005-02-03 | 2014-09-30 | Takeda Nycomed As | Melt granulation of a composition containing a calcium-containing compound |
US8383702B2 (en) | 2006-12-20 | 2013-02-26 | Saint-Gobain Ceramics & Plastics, Inc. | Composite materials having improved thermal performance |
US8835543B2 (en) | 2006-12-20 | 2014-09-16 | Saint-Gobain Ceramics & Plastics, Inc. | Composite materials having improved thermal performance |
CN102796285B (en) * | 2011-05-27 | 2016-04-06 | 上海杰事杰新材料(集团)股份有限公司 | A kind of two degraded starch master batch and preparation method thereof |
CN102796285A (en) * | 2011-05-27 | 2012-11-28 | 上海杰事杰新材料(集团)股份有限公司 | Double-degradation starch masterbatch and preparation method thereof |
CN102408612A (en) * | 2011-11-23 | 2012-04-11 | 吴江明峰聚氨酯制品有限公司 | Photodegradable and biodegradable polyethylene plastic bag |
CN104031302A (en) * | 2013-03-04 | 2014-09-10 | 中国科学院过程工程研究所 | Controllable oxidative-biological degradation plastic master batch and preparation method thereof |
CN104031302B (en) * | 2013-03-04 | 2016-07-06 | 中国科学院过程工程研究所 | A kind of controllable oxidization biodegradable plastic master batch and preparation method thereof |
CN105219102A (en) * | 2014-06-11 | 2016-01-06 | 怀宁县宝友工贸有限公司 | A kind of production technique of Environment-friendlyplastic plastic bag |
CN104385698A (en) * | 2014-12-11 | 2015-03-04 | 昆山市张浦彩印厂 | Degradable PO foaming co-extruded composite thin film |
CN104369509A (en) * | 2014-12-11 | 2015-02-25 | 昆山加浦包装材料有限公司 | Degradable foamed and co-extruded PA barrier thin film |
CN104369509B (en) * | 2014-12-11 | 2016-09-21 | 昆山加浦包装材料有限公司 | Degradable foaming coextrusion PA barrier film |
CN104385698B (en) * | 2014-12-11 | 2016-09-21 | 昆山市张浦彩印厂 | Degradable PO foams coex composite membranes |
CN106243454A (en) * | 2016-08-04 | 2016-12-21 | 安徽省中日农业环保科技有限公司 | A kind of master batch of biodegradable plastics particle |
CN106947179A (en) * | 2017-02-22 | 2017-07-14 | 阳光盛景(北京)生态科技股份有限公司 | A kind of degradative plastic film for filler of being degraded containing string |
CN107163369A (en) * | 2017-06-29 | 2017-09-15 | 吉林省农业科学院 | Peanut Special-purpose double-action unifies degradative plastic film |
CN107698857A (en) * | 2017-11-23 | 2018-02-16 | 马鞍山松鹤信息科技有限公司 | A kind of agricultural film material and its preparation technology |
CN111269466A (en) * | 2020-04-02 | 2020-06-12 | 李守本 | Plastic master batch, preparation method and plastic |
CN115011044A (en) * | 2022-06-08 | 2022-09-06 | 江苏冠春新材料科技有限公司 | Light/biological dual-degradation PS composite material and preparation method thereof |
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