CN102924882A - Degradable high polymer film and preparation method thereof - Google Patents
Degradable high polymer film and preparation method thereof Download PDFInfo
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- CN102924882A CN102924882A CN2012104158246A CN201210415824A CN102924882A CN 102924882 A CN102924882 A CN 102924882A CN 2012104158246 A CN2012104158246 A CN 2012104158246A CN 201210415824 A CN201210415824 A CN 201210415824A CN 102924882 A CN102924882 A CN 102924882A
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Abstract
The invention discloses a degradable high polymer film and a preparation method thereof. The degradable high polymer film is prepared from the following components in parts by weight: 5-10 parts of aromatic dicarboxylic acid, 5-10 parts of aliphatic dibasic acid, 5-10 parts of aliphatic dibasic alcohol, 0.5-1 part of titanium compound or stannic compound, 5-10 parts of ethanol, 0.2-0.5 part of diisocyanate chain extender, 1-5 parts of calcium chloride, 5-10 parts of organic antioxidant and 5-10 parts of organic lubricant. The degradable high polymer provided by the invention has the advantages of degradability, high heat stability and favorable mechanical properties.
Description
Technical field
The present invention relates to a kind of macromolecular material, particularly, relate to a kind of degradable macromolecule film and preparation method thereof.
Background technology
Photodegradation, light, bio-degradable are arranged at present, contain the manufacturing technology of several degradative plastic films such as oxygen degraded, thermal destruction, biological degradation.But since mulch film need to be in different areas, different weather condition, different edatopes, different works
The function of thing type, different insulation, soil moisture conservation, weed eradication is wanted and can be degraded on time, can not step back degraded, can not degrade in advance.So to degradative plastic film to accomplish " suit measures to local conditions, a district one side, precisely use, degraded fully, the cycle is controlled " technical requirements because difficulty is large, production cost is higher, rarely has so far successful degradative plastic film product on the market.
Biodegradable mulch mainly contains natural polymer subtype, microorganism synthesis type, synthetic type three major types.
The natural polymer subtype according to structure and composition, can be divided into natural protein, polysaccharide and derivative thereof by a class macromole that directly obtains in extraction or the physical environment in the organism, comprises in addition some biosynthesizing polyester.Typical protein, polysaccharose substance and derivative thereof have the natural polymers such as collagen, glue, cyclodextrin, starch, dextran, shell chitose, hyaluronic acid, Mierocrystalline cellulose, Lalgine derivative, chondroitin sulfate and heparin at the occurring in nature aboundresources, but self-sow also, have good biocompatibility and degradability, the product of natural decomposition can be described as totally nontoxic, but because major part contains great amount of hydroxy group and other polar group in these molecules, easily form in the molecule and intermolecular hydrogen bonding, thereby be difficult to dissolving and melt-processed; Also lack good water tolerance and snappiness, film thickness is higher, and mechanical property is relatively poor.The microorganism synthesis type is the macromolecular material that obtains by microbial fermentation, mainly comprises poly-β-butyric ester (PHB), poly-hydroxyl valerate etc., and they belong to PHA (PHA).Wherein, polyhydroxybutyrate is the low toxicity material, has been used at present medicine controlled releasing, suture line and artificial skin etc.But its microorganism growth cycle is long, productive rate is not high; Bacterial classification is to the absorption low conversion rate of carbon source; Polymer molecule mass distribution a wider range, and wayward; Performance is compared with the chemical industry synthetic plastics, and larger gap is still arranged, and is unsuitable for the service requirements of agricultural mulching.The synthetic type is to introduce the aliphatic polyester of ester group and a small amount of aromatic polyester in molecular structure mostly, and its preparation method mainly comprises condensation polymerization and ring-opening polymerization.These kind polyester water tolerance such as the aromatic polyester of having developed at present such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), Poly(Trimethylene Terephthalate) (PTT) are strong, can support the characteristics such as antibacterial erosion, can't carry out biological degradation under the Nature condition.Aliphatic polyester series is such as poly-3-hydroxyalkanoate (PHA), poly butylene succinate (PBS) etc., this class aliphatic polyester series receives publicity day by day with characteristics such as its good biocompatibility, biological degradabilities, use in fields such as biomedical material, injection-molded items, but in practicalization, also there are some shortcomings: too fast, thermally-stabilised bad, the shortcoming such as the relatively relatively poor foreign matter content of mechanical property is higher of, biodegradation rate expensive such as price comparison, thus limited the application of this kind polyester material in some field.As the price comparison of these class copolyesters such as poly terephthalic acid succinic acid-butanediol ester is expensive, molecular weight is lower, the degree of branching is lower, degree of crystallinity is lower, be not easy to the shortcoming such as process for processing, restriction too the application of this class copolyesters in some field.For this reason, rigidity, the fusing point by can improving copolyesters to introducing aromatic components, improve its mechanical property; Can improve molecular weight and the degree of branching of copolyesters to the modification of copolyesters by chainextender, the one class copolyesters of can obtain class moderate cost, excellent performance, be convenient to process for processing, biodegradation rate is controlled, being one of emphasis of polyester macromolecular material development, also is simultaneously to solve residual film to cause one of important method of white pollution.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defective, and a kind of degradable, thermally-stabilised good, degradable macromolecule film that mechanical property is good are provided.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of degradable macromolecule film, finished by the component preparation that following weight is confused:
Aromatic dicarboxylic acid 5-10 part; Aliphatic diprotic acid 5-10 part; Aliphatic dibasic alcohol 5-10 part; Catalyzer 0.5-1 part of titanium compound or tin compound; Ethanol 5-10 part; Chainextender 0.2-0.5 part of diisocyanates; Calcium chloride 1-5 part; Organic antioxidant 5-10 part; Organic lubricant 5-10 part.
Preferably, finished by the confused component preparation of following weight:
Aromatic dicarboxylic acid 6-8 part; Aliphatic diprotic acid 6-8 part; Aliphatic dibasic alcohol 6-8 part; Catalyzer 0.5-0.8 part of titanium compound or tin compound; Ethanol 6-8 part; 0.3 part of the chainextender of diisocyanates; Calcium chloride 2-4 part; Organic antioxidant 6-8 part; Organic lubricant 6-8 part.
Preferably, finished by the confused component preparation of following weight:
7 parts of aromatic dicarboxylic acids; 7 parts of aliphatic diprotic acid; 7 parts of aliphatic dibasic alcohol; 0.7 part of the catalyzer of titanium compound or tin compound; 7 parts of ethanol; 0.3 part of the chainextender of diisocyanates; 3 parts in calcium chloride; 7 parts of organic antioxidants; 7 parts of organic lubricants.
Degradable macromolecule thin film technology method of the present invention may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
The present invention has following beneficial effect:
1. the prepared degradable macromolecule film of the present invention can adapt to various places Different climate condition and edatope, satisfy insulation, the soil moisture conservation of Different Crop, the function of weed eradication, within the life-span of design, begin degraded, do not affect the normal plantation of next farm crop in season, reach " suit measures to local conditions, a district one side, precisely use, degraded fully, the cycle is controlled " technical requirements;
The prepared degradable macromolecule film degradation of the present invention evenly and thoroughly, noresidue, non-secondary pollution, the Integrated using cost is lower;
3. the prepared degradable macromolecule film of the present invention has solved the problem of water tolerance and hydrophilic balance;
4. the prepared degradable macromolecule thin film mechanical performance excellence of the present invention meets mechanical property requirements;
5. the prepared degradable macromolecule film of the present invention has good biodegradability.
Embodiment
Embodiment 1
A kind of degradable macromolecule film, finished by the component preparation that following weight is confused:
5 parts of aromatic dicarboxylic acids; 10 parts of aliphatic diprotic acid; 5 parts of aliphatic dibasic alcohol; 0.5 part of titanium compound catalyst; 5 parts of ethanol; 0.5 part of the chainextender of diisocyanates; 1 part in calcium chloride; 10 parts of organic antioxidants; 10 parts of organic lubricants.
Degradable macromolecule thin film technology method may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
Embodiment 2
A kind of degradable macromolecule film, finished by the component preparation that following weight is confused:
8 parts of aromatic dicarboxylic acids; 8 parts of aliphatic diprotic acid; 8 parts of aliphatic dibasic alcohol; 0.8 part of the catalyzer of tin compound; 8 parts of ethanol; 0.3 part of the chainextender of diisocyanates; 4 parts in calcium chloride; 8 parts of organic antioxidants; 8 parts of organic lubricants.
Degradable macromolecule thin film technology method may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
Embodiment 3
A kind of degradable macromolecule film, finished by the component preparation that following weight is confused:
7 parts of aromatic dicarboxylic acids; 7 parts of aliphatic diprotic acid; 7 parts of aliphatic dibasic alcohol; 0.7 part of titanium compound catalyst; 7 parts of ethanol; 0.3 part of the chainextender of diisocyanates; 3 parts in calcium chloride; 7 parts of organic antioxidants; 7 parts of organic lubricants.
Degradable macromolecule thin film technology method may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
Embodiment 4
A kind of degradable macromolecule film, finished by the component preparation that following weight is confused:
10 parts of aromatic dicarboxylic acids; 10 parts of aliphatic diprotic acid; 10 parts of aliphatic dibasic alcohol; Titanium compound catalyst 0.5-1 part; 10 parts of ethanol; 0.5 part of the chainextender of diisocyanates; 5 parts in calcium chloride; 10 parts of organic antioxidants; 10 parts of organic lubricants.
Degradable macromolecule thin film technology method of the present invention may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a degradable macromolecule film is characterized in that, is finished by the component preparation that following weight is confused:
Aromatic dicarboxylic acid 5-10 part; Aliphatic diprotic acid 5-10 part; Aliphatic dibasic alcohol 5-10 part; Catalyzer 0.5-1 part of titanium compound or tin compound; Ethanol 5-10 part; Chainextender 0.2-0.5 part of diisocyanates; Calcium chloride 1-5 part; Organic antioxidant 5-10 part; Organic lubricant 5-10 part.
2. a kind of degradable macromolecule film according to claim 1 is characterized in that, is finished by the component preparation that following weight is confused:
Aromatic dicarboxylic acid 6-8 part; Aliphatic diprotic acid 6-8 part; Aliphatic dibasic alcohol 6-8 part; Catalyzer 0.5-0.8 part of titanium compound or tin compound; Ethanol 6-8 part; 0.3 part of the chainextender of diisocyanates; Calcium chloride 2-4 part; Organic antioxidant 6-8 part; Organic lubricant 6-8 part.
3. a kind of degradable macromolecule film according to claim 1 is characterized in that, is finished by the component preparation that following weight is confused:
7 parts of aromatic dicarboxylic acids; 7 parts of aliphatic diprotic acid; 7 parts of aliphatic dibasic alcohol; 0.7 part of the catalyzer of titanium compound or tin compound; 7 parts of ethanol; 0.3 part of the chainextender of diisocyanates; 3 parts in calcium chloride; 7 parts of organic antioxidants; 7 parts of organic lubricants.
4. each described degradable macromolecule thin film technology method of claim 1-3 may further comprise the steps:
(1) each component is proportionally mixed, react the preparation oligopolymer;
(2) oligopolymer is obtained the copolyesters master batch by the twin screw extruder granulation;
(3) polyester master particle organic antioxidant and organic lubricant are stirred through high mixer after, blow by inflation film manufacturing machine, obtain the degradable macromolecule film.
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| CN2012104158246A CN102924882A (en) | 2012-10-26 | 2012-10-26 | Degradable high polymer film and preparation method thereof |
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| CN2012104158246A CN102924882A (en) | 2012-10-26 | 2012-10-26 | Degradable high polymer film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702694A (en) * | 2012-06-14 | 2012-10-03 | 新疆康润洁环保科技有限公司 | Polyester biodegradation agricultural mulching film as well as preparation and application of polyester biodegradation agricultural mulching film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976970A (en) * | 2004-03-19 | 2007-06-06 | 伊斯曼化学公司 | Anaerobically biodegradable polyesters |
| CN102030893A (en) * | 2009-09-29 | 2011-04-27 | 东丽纤维研究所（中国）有限公司 | Copolyester as well as preparation method and application thereof |
| CN102702694A (en) * | 2012-06-14 | 2012-10-03 | 新疆康润洁环保科技有限公司 | Polyester biodegradation agricultural mulching film as well as preparation and application of polyester biodegradation agricultural mulching film |
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- 2012-10-26 CN CN2012104158246A patent/CN102924882A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976970A (en) * | 2004-03-19 | 2007-06-06 | 伊斯曼化学公司 | Anaerobically biodegradable polyesters |
| CN102030893A (en) * | 2009-09-29 | 2011-04-27 | 东丽纤维研究所（中国）有限公司 | Copolyester as well as preparation method and application thereof |
| CN102702694A (en) * | 2012-06-14 | 2012-10-03 | 新疆康润洁环保科技有限公司 | Polyester biodegradation agricultural mulching film as well as preparation and application of polyester biodegradation agricultural mulching film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702694A (en) * | 2012-06-14 | 2012-10-03 | 新疆康润洁环保科技有限公司 | Polyester biodegradation agricultural mulching film as well as preparation and application of polyester biodegradation agricultural mulching film |
| CN102702694B (en) * | 2012-06-14 | 2014-03-19 | 新疆康润洁环保科技有限公司 | Polyester biodegradation agricultural mulching film as well as preparation and application of polyester biodegradation agricultural mulching film |
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Application publication date: 20130213 |