CN104893199A - Full-degradable plastic film with wide using temperature range and strong toughness and manufacturing method thereof - Google Patents
Full-degradable plastic film with wide using temperature range and strong toughness and manufacturing method thereof Download PDFInfo
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- CN104893199A CN104893199A CN201510292917.8A CN201510292917A CN104893199A CN 104893199 A CN104893199 A CN 104893199A CN 201510292917 A CN201510292917 A CN 201510292917A CN 104893199 A CN104893199 A CN 104893199A
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Abstract
The invention discloses a full-degradable plastic film with wide using temperature range and strong toughness. Polyving akohol and acorn starch are used as main film-forming materials for manufacturing the full-degradable plastic film. Compared with a traditional technology, a manufacturing method of the full-degradable plastic film has the advantages that nanosilicon dioxide and the acorn starch are modified by a physical chemistry method and mutually matched with other effective constituents at the same time so that the acorn starch and hydroxide radicals in polyving akohol molecules are preferentially combined with surface hydroxyl groups of a defined amount of nanosilicon dioxide to form hydrogen bonds, thus increasing the compatibility of the acorn starch and the polyving akohol and improving the water tolerance of the film. The manufactured full-degradable plastic film has excellent biodegradability, good toughness, relatively high tear resistance and wide using temperature range, can meet the performance requirements of plastic products producing relatively serious white pollution such as disposable packages, tableware and plastic shopping bags on the market and is wide in application prospect.
Description
Technical field
The present invention relates to natural macromolecular material technical field, be specifically related to strong Based Full-degradable Plastics Film of a kind of use temperature wide ranges toughness and preparation method thereof.
Background technology
Synthesized polymer material also causes serious pollution to environment while bringing great convenience to the life of people, in addition the continuous minimizing of the prospective oil of conventional plastic is manufactured, thus reproducible eco-friendly natural macromolecular material becomes the focus of research, Mierocrystalline cellulose, starch, protein etc. are current practical study and apply more natural polymer, so natural polymer subtype Wholly-degradable material becomes one of study hotspot of novel environmental friendly material.
Natural polymer because its raw material sources are wide, biodegradability is strong and film forming properties excellence is subject to extensive concern in food product pack and mulch film Application Areas.But, the feature due to natural polymer itself: its range of application of the drawbacks limit such as poor processability, fragility are very much not water-fast.Often adopt plasticising for addressing this problem, acid adjusted, crosslinked, fill or the single method of modifying such as blended, but this single method of modifying is limited, the Based Full-degradable Plastics Film function singleness prepared and cost is high cannot realize its suitability for industrialized production.Nanometer silicon dioxide material has the special functional effect of nanoparticle, improve separately natural macromolecule membrane and PVA (PVOH) FILM mechanical property and water resistance aspect with it and all have obvious effect, and few with the research report of nano-silicon dioxide modified natural polymer and polyvinyl alcohol compound film.
Summary of the invention
Object of the present invention is just to provide strong Based Full-degradable Plastics Film of a kind of use temperature wide ranges toughness and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
The Based Full-degradable Plastics Film that a kind of use temperature wide ranges toughness is strong, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 95-103, acorn starch 55-65, cavings 15-25, nano silicon 0.8-1.9, diethyl phthalate 3.1-4.8, isopropyl titanate 5-9, aluminum chloride 0.1-0.3, wheat stalk fiber 4-7, suitable quantity of water.
The preparation method of the Based Full-degradable Plastics Film that described a kind of use temperature wide ranges toughness is strong, is characterized in that comprising the following steps:
(1) acorn starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add aluminum chloride, diethyl phthalate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification acorn starch naturally;
(2) by wheat stalk fiber vacuum-drying 2-4 hour at 105 DEG C, add isopropyl titanate, nano silicon agitation grinding 2-3 hour, dry;
(3) polyvinyl alcohol is put into 80-90 DEG C of water-bath and be incubated 30-40 minute, add step (1), (2) material in 55-65 DEG C of water-bath 40-50 minute, then add other remaining components stirring 1-2 hour, put into twin screw extruder granulation;
(4) particle obtained for step (3) is poured in inflation film manufacturing machine at 140-170 DEG C, carry out blown film.
The present invention has following beneficial effect: the present invention adopts polyvinyl alcohol and acorn starch to be main film forming substance, compare the present invention to carry out modification by physico-chemical process to nano silicon and acorn starch coordinate other effective constituents to cooperatively interact simultaneously with traditional technology, hydroxyl in acorn starch and polyvinyl alcohol molecule is made to understand preferential and proper amount of nano silica sphere hydroxy combining formation hydrogen bond, increase the compatibility of acorn starch and polyvinyl alcohol, improve film water tolerance, obtained Based Full-degradable Plastics Film not only has excellent biodegradability, and this film has good toughness, higher tearing toughness, use temperature wide ranges, disposable packaging on market can be met, tableware, plastic shopping bags etc. produce the performance requriements of the more serious plastics of white pollution, application prospect is wide.
Embodiment
The Based Full-degradable Plastics Film that described a kind of use temperature wide ranges toughness is strong, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 98, acorn starch 65, cavings 23, nano silicon 1.9, diethyl phthalate 3.7, isopropyl titanate 7, aluminum chloride 0.2, wheat stalk fiber 5, suitable quantity of water.
Making method comprises the following steps:
(1) acorn starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add aluminum chloride, diethyl phthalate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification acorn starch naturally;
(2) by wheat stalk fiber vacuum-drying 2-4 hour at 105 DEG C, add isopropyl titanate, nano silicon agitation grinding 2-3 hour, dry;
(3) polyvinyl alcohol is put into 80-90 DEG C of water-bath and be incubated 30-40 minute, add step (1), (2) material in 55-65 DEG C of water-bath 40-50 minute, then add other remaining components stirring 1-2 hour, put into twin screw extruder granulation;
(4) particle obtained for step (3) is poured in inflation film manufacturing machine at 140-170 DEG C, carry out blown film.
The technical parameter index of the Based Full-degradable Plastics Film using the present invention to produce is as follows: tensile strength is 9.85MPa, and elongation at break is 89.94%, and transmittance is 26.36%.
Claims (2)
1. the Based Full-degradable Plastics Film that a use temperature wide ranges toughness is strong, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 95-103, acorn starch 55-65, cavings 15-25, nano silicon 0.8-1.9, diethyl phthalate 3.1-4.8, isopropyl titanate 5-9, aluminum chloride 0.1-0.3, wheat stalk fiber 4-7, suitable quantity of water.
2. the making method of the Based Full-degradable Plastics Film that a kind of use temperature wide ranges toughness according to claim 1 is strong, is characterized in that comprising the following steps:
(1) acorn starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add aluminum chloride, diethyl phthalate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification acorn starch naturally;
(2) by wheat stalk fiber vacuum-drying 2-4 hour at 105 DEG C, add isopropyl titanate, nano silicon agitation grinding 2-3 hour, dry;
(3) polyvinyl alcohol is put into 80-90 DEG C of water-bath and be incubated 30-40 minute, add step (1), (2) material in 55-65 DEG C of water-bath 40-50 minute, then add other remaining components stirring 1-2 hour, put into twin screw extruder granulation;
(4) particle obtained for step (3) is poured in inflation film manufacturing machine at 140-170 DEG C, carry out blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292917.8A CN104893199A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with wide using temperature range and strong toughness and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510292917.8A CN104893199A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with wide using temperature range and strong toughness and manufacturing method thereof |
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| CN104893199A true CN104893199A (en) | 2015-09-09 |
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| CN201510292917.8A Pending CN104893199A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with wide using temperature range and strong toughness and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218995A (en) * | 2015-11-09 | 2016-01-06 | 长沙奥佳信息科技有限公司 | The Based Full-degradable Plastics Film that a kind of elongation at break is high |
| CN107826462A (en) * | 2017-11-17 | 2018-03-23 | 芜湖蓝天工程塑胶有限公司 | Extrusion coating paper of the laminated film containing stalk fibre and preparation method thereof |
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| CN1900148A (en) * | 2005-07-18 | 2007-01-24 | 华中农业大学 | Nano SiO2 modified starch base full biodegradable film and preparing method |
| CN101016397A (en) * | 2007-01-31 | 2007-08-15 | 哈尔滨工业大学 | Polyvinylalcohol composite film, preparation method thereof and method of preparing nano composite powder for preparing the polyvinylalcohol composite film |
| CN103031026A (en) * | 2011-10-08 | 2013-04-10 | 常熟市屹浩食品包装材料有限公司 | Polyvinyl alcohol radical composite coating fresh keeping packaging material nano TiO2 functional modification method |
| CN103289131A (en) * | 2013-05-22 | 2013-09-11 | 南京财经大学 | Preparation method for starch-polyvinyl alcohol biologically-cross-linked nano-composite plastic film |
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2015
- 2015-06-02 CN CN201510292917.8A patent/CN104893199A/en active Pending
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| CN1900148A (en) * | 2005-07-18 | 2007-01-24 | 华中农业大学 | Nano SiO2 modified starch base full biodegradable film and preparing method |
| CN101016397A (en) * | 2007-01-31 | 2007-08-15 | 哈尔滨工业大学 | Polyvinylalcohol composite film, preparation method thereof and method of preparing nano composite powder for preparing the polyvinylalcohol composite film |
| CN103031026A (en) * | 2011-10-08 | 2013-04-10 | 常熟市屹浩食品包装材料有限公司 | Polyvinyl alcohol radical composite coating fresh keeping packaging material nano TiO2 functional modification method |
| CN103289131A (en) * | 2013-05-22 | 2013-09-11 | 南京财经大学 | Preparation method for starch-polyvinyl alcohol biologically-cross-linked nano-composite plastic film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218995A (en) * | 2015-11-09 | 2016-01-06 | 长沙奥佳信息科技有限公司 | The Based Full-degradable Plastics Film that a kind of elongation at break is high |
| CN107826462A (en) * | 2017-11-17 | 2018-03-23 | 芜湖蓝天工程塑胶有限公司 | Extrusion coating paper of the laminated film containing stalk fibre and preparation method thereof |
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Application publication date: 20150909 |
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