CN103627031B - A kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method - Google Patents
A kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method Download PDFInfo
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- CN103627031B CN103627031B CN201310546414.XA CN201310546414A CN103627031B CN 103627031 B CN103627031 B CN 103627031B CN 201310546414 A CN201310546414 A CN 201310546414A CN 103627031 B CN103627031 B CN 103627031B
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Abstract
The present invention relates to a kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method, its component and weight part are: starch 100 parts, sea grass polyphenol 10-15 part, glycerine 10-15 part, palygorskite clay 5-8 part. The sea grass polyphenol adding small amount in starch film namely can when reducing glycerine consumption, it is to increase the intensity of plastics film.
Description
Technical field
The present invention relates to a kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method, belong to macromolecular material and manufacture field thereof.
Technical background
Petroleum-based plastics since coming out, with its abundant source, appearance attractive in appearance, health, easy to process, stable in properties and be widely used in a lot of occasion, become the indispensable basic material of human survival, social development and articles for use. But from environmental problem analysis, a large amount of discarded plastics, because of its non-biodegradable, bring the puzzlement of white pollution to the living environment of the mankind. Owing to general plastics generally want the centuries just can degrade, soil is caused long-term hazards, affects crop growth, cause crop production reduction; It is lethal that the plastics being scattered can cause animal to eat by mistake. And the native biopolymer of degradable is inexhaustible renewable resources, various in style, production cost is low, can not produce to pollute to environment. But in prior art, the mechanical property of degradable plastics is poor, it is necessary to improve further.
Summary of the invention
It is an object of the invention to provide a kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method, it is possible to effectively
For realizing above object, a kind of sea grass polyphenol-starch-based degradable laminated film of the present invention, its component and weight part be: starch 100 parts, sea grass polyphenol 10-15 part, glycerine 10-15 part, palygorskite clay 5-8 part.
Preferred component and weight part be: starch 100 parts, sea grass polyphenol 12 parts, glycerine 10 parts, palygorskite clay 6 parts.
The preparation method of a kind of sea grass polyphenol-starch-based degradable laminated film of the present invention is:
(1) being dissolved in acetic acid by sea grass polyphenol, preparation mass concentration is the sea grass polyphenol solution of 2%;
(2) add starch, palygorskite clay, glycerine, water, it is placed in ultrasonic wave separating apparatus and disperses 30min;
(3) at 50 DEG C, gelatinization is carried out, and carry out mechanical stirring, then it is poured in mould, dry 20h at 60 DEG C, take off film, it is balanced 24-48h in the environment of 70% again in relative humidity, carries out sulfuration, film-making with thermocompressor and chilling press, finally with conventional Shooting Technique injection moulding on injection moulding machine.
Further, the power of described ultrasonic wave separating apparatus is 600W.
Further, described gelatinization time is 20-30min.
The useful effect that the present invention produces is that sea grass polyphenol and starch have good intermiscibility, and the sea grass polyphenol adding small amount in starch film namely can when reducing glycerine consumption, it is to increase the intensity of plastics film. To add polygorskite in the film be the water retention property in order to improve matrix material and reduces costs.
Embodiment
Embodiment 1:
A kind of sea grass polyphenol-starch-based degradable laminated film, its component and weight part be: starch 100 parts, sea grass polyphenol 10 parts, glycerine 15 parts, palygorskite clay 5 parts.
The preparation method of a kind of sea grass polyphenol-starch-based degradable laminated film is: sea grass polyphenol is dissolved in acetic acid by (1), and preparation mass concentration is the sea grass polyphenol solution of 2%; (2) add starch, palygorskite clay, glycerine, water, it is placed in the ultrasonic wave separating apparatus that power is 600W and disperses 30min; (3) at 50 DEG C, gelatinization 25min is carried out, and carry out mechanical stirring, then it is poured in mould, dry 20h at 60 DEG C, take off film, it is balanced 36h in the environment of 70% again in relative humidity, carries out sulfuration, film-making with thermocompressor and chilling press, finally with conventional Shooting Technique injection moulding on injection moulding machine.
Sea grass polyphenol-starch-based degradable the laminated film prepared as stated above is measured its mechanical property and is: record tensile strength 17.9MPa, elongation at break 182%.
Embodiment 2:
A kind of sea grass polyphenol-starch-based degradable laminated film, its component and weight part be: starch 100 parts, sea grass polyphenol 12 parts, glycerine 10 parts, palygorskite clay 6 parts.
The preparation method of a kind of sea grass polyphenol-starch-based degradable laminated film is: sea grass polyphenol is dissolved in acetic acid by (1), and preparation mass concentration is the sea grass polyphenol solution of 2%; (2) add starch, palygorskite clay, glycerine, water, it is placed in the ultrasonic wave separating apparatus that power is 600W and disperses 30min; (3) at 50 DEG C, gelatinization 20min is carried out, and carry out mechanical stirring, then it is poured in mould, dry 20h at 60 DEG C, take off film, it is balanced 36h in the environment of 70% again in relative humidity, carries out sulfuration, film-making with thermocompressor and chilling press, finally with conventional Shooting Technique injection moulding on injection moulding machine.
Sea grass polyphenol-starch-based degradable the laminated film prepared as stated above is measured its mechanical property and is: record tensile strength 18.4MPa, elongation at break 195%.
Embodiment 3:
A kind of sea grass polyphenol-starch-based degradable laminated film, its component and weight part be: starch 100 parts, sea grass polyphenol 15 parts, glycerine 13 parts, palygorskite clay 8 parts.
The preparation method of a kind of sea grass polyphenol-starch-based degradable laminated film is: sea grass polyphenol is dissolved in acetic acid by (1), and preparation mass concentration is the sea grass polyphenol solution of 2%; (2) add starch, palygorskite clay, glycerine, water, it is placed in the ultrasonic wave separating apparatus that power is 600W and disperses 30min; (3) at 50 DEG C, gelatinization 30min is carried out, and carry out mechanical stirring, then it is poured in mould, dry 20h at 60 DEG C, take off film, it is balanced 48h in the environment of 70% again in relative humidity, carries out sulfuration, film-making with thermocompressor and chilling press, finally with conventional Shooting Technique injection moulding on injection moulding machine.
Sea grass polyphenol-starch-based degradable the laminated film prepared as stated above is measured its mechanical property and is: record tensile strength 17.6MPa, elongation at break 187%.
Claims (5)
1. sea grass polyphenol-starch-based degradable laminated film, it is characterised in that: its component and weight part be: starch 100 parts, sea grass polyphenol 10-15 part, glycerine 10-15 part, palygorskite clay 5-8 part.
2. a kind of sea grass polyphenol-starch-based degradable laminated film according to claim 1, it is characterised in that: its component and weight part be: starch 100 parts, sea grass polyphenol 12 parts, glycerine 10 parts, palygorskite clay 6 parts.
3. a kind of sea grass polyphenol-starch-based degradable laminated film according to claim 1, it is characterised in that: preparation method is:
(1) being dissolved in acetic acid by sea grass polyphenol, preparation mass concentration is the sea grass polyphenol solution of 2%;
(2) add starch, palygorskite clay, glycerine, water, it is placed in ultrasonic wave separating apparatus and disperses 30min;
(3) at 50 DEG C, gelatinization is carried out, and carry out mechanical stirring, then it is poured in mould, dry 20h at 60 DEG C, take off film, it is balanced 24-48h in the environment of 70% again in relative humidity, carries out sulfuration, film-making with thermocompressor and chilling press, finally with conventional Shooting Technique injection moulding on injection moulding machine.
4. a kind of sea grass polyphenol-starch-based degradable laminated film according to claim 3, it is characterised in that: the power of described ultrasonic wave separating apparatus is 600W.
5. a kind of sea grass polyphenol-starch-based degradable laminated film according to claim 3, it is characterised in that: described gelatinization time is 20-30min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310546414.XA CN103627031B (en) | 2013-11-07 | 2013-11-07 | A kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method |
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| CN201310546414.XA CN103627031B (en) | 2013-11-07 | 2013-11-07 | A kind of sea grass polyphenol-starch-based degradable laminated film and its preparation method |
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| CN103627031A CN103627031A (en) | 2014-03-12 |
| CN103627031B true CN103627031B (en) | 2016-06-01 |
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| JPS619258A (en) * | 1984-06-21 | 1986-01-16 | Asahi Shokuhin Kogyo Kk | Film-shaped food |
| CN102898844A (en) * | 2012-11-07 | 2013-01-30 | 申晓旭 | Edible food packaging film and preparation method thereof |
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Inventor after: Huang Zhenxiong Inventor before: Su Jianli |
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Effective date of registration: 20170622 Address after: 528415, No. 103, No. two, Jiuzhou base, Xiaolan Town, Zhongshan City, Guangdong Province, Jianshe Road Patentee after: Packaging products Co., Ltd. Zhongshan Connaught Connaught Address before: 266061 Shandong, Laoshan, Hongkong East Road, No. Pioneering Park, biological park, room 248, No. 239 Patentee before: Qingdao Wenchuang Science & Technology Co., Ltd. |