CN104893208A - Full-degradable plastic film with good freezing resistance and toughness and production method thereof - Google Patents
Full-degradable plastic film with good freezing resistance and toughness and production method thereof Download PDFInfo
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- CN104893208A CN104893208A CN201510293107.4A CN201510293107A CN104893208A CN 104893208 A CN104893208 A CN 104893208A CN 201510293107 A CN201510293107 A CN 201510293107A CN 104893208 A CN104893208 A CN 104893208A
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Abstract
The invention discloses a full-degradable plastic film with good freezing resistance and toughness. Polyvinyl alcohol and canna edulis ker starch are adopted as main film forming matters, and compared with the traditional technology, a physical-chemical method is adopted for modifying nano silica and canna edulis ker starch and other active ingredients are combined, so that hydroxyls in the canna edulis ker starch and polyvinyl alcohol can be preferentially bonded with right amount of hydroxyls on the surface of nano silica to form hydrogen bonds, compatibility of the canna edulis ker starch and polyvinyl alcohol can be enhanced, part of hydroxyls in the canna edulis ker starch and polyvinyl alcohol are blocked, and the water resistance of the film is improved. The obtained full-degradable plastic film has the advantages of wide raw material source, simple technology, full biodegradability and good freezing resistance and toughness.
Description
Technical field
The present invention relates to natural macromolecular material technical field, be specifically related to good Based Full-degradable Plastics Film of a kind of freeze proof 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 good Based Full-degradable Plastics Film of a kind of freeze proof 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 freeze proof toughness is good, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 101-113, canna starch 70-80, nano silicon 1.2-2.9, Zinic stearas 0.4-0.7, hydroxyl styrene-butadiene latex 9-12,1,2-PD 3-5, polyamide wax micropowder 1-3, enteromorpha fiber 7-10, medical stone 2-4, suitable quantity of water.
The preparation method of the Based Full-degradable Plastics Film that described a kind of freeze proof toughness is good, is characterized in that comprising the following steps:
(1) canna starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add Zinic stearas, 1,2-PD, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification canna starch naturally;
(2) by enteromorpha fiber vacuum-drying 2-4 hour at 105 DEG C, add hydroxyl styrene-butadiene latex, 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 canna starch to be main film forming substance, compare the present invention to carry out modification by physico-chemical process to nano silicon and canna starch coordinate other effective constituents to cooperatively interact simultaneously with traditional technology, hydroxyl in canna 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 canna starch and polyvinyl alcohol, close the part of hydroxyl in canna starch and polyvinyl alcohol, improve film water tolerance, obtained its raw material sources of Based Full-degradable Plastics Film are extensive, technique is simple, can fully bio-degradable, there is good frost resistance and toughness.
Embodiment
The Based Full-degradable Plastics Film that described a kind of freeze proof toughness is good, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 107, canna starch 74, nano silicon 2.4, Zinic stearas 0.6, hydroxyl styrene-butadiene latex 9,1,2-PD 4, polyamide wax micropowder 1, enteromorpha fiber 9, medical stone 3, suitable quantity of water.
Making method comprises the following steps:
(1) canna starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add Zinic stearas, 1,2-PD, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification canna starch naturally;
(2) by enteromorpha fiber vacuum-drying 2-4 hour at 105 DEG C, add hydroxyl styrene-butadiene latex, 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 9.52MPa, and elongation at break is 86.95%, and water-intake rate is 47.32%.
Claims (2)
1. the Based Full-degradable Plastics Film that a freeze proof toughness is good, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 101-113, canna starch 70-80, nano silicon 1.2-2.9, Zinic stearas 0.4-0.7, hydroxyl styrene-butadiene latex 9-12,1,2-PD 3-5, polyamide wax micropowder 1-3, enteromorpha fiber 7-10, medical stone 2-4, suitable quantity of water.
2. the making method of the Based Full-degradable Plastics Film that a kind of freeze proof toughness according to claim 1 is good, is characterized in that comprising the following steps:
(1) canna starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add Zinic stearas, 1,2-PD, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification canna starch naturally;
(2) by enteromorpha fiber vacuum-drying 2-4 hour at 105 DEG C, add hydroxyl styrene-butadiene latex, 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 |
|---|---|---|---|
| CN201510293107.4A CN104893208A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with good freezing resistance and toughness and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510293107.4A CN104893208A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with good freezing resistance and toughness and production method thereof |
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| CN104893208A true CN104893208A (en) | 2015-09-09 |
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| CN201510293107.4A Pending CN104893208A (en) | 2015-06-02 | 2015-06-02 | Full-degradable plastic film with good freezing resistance and toughness and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752688A (en) * | 2018-05-04 | 2018-11-06 | 佛山市瑞生海特生物科技有限公司 | A kind of preparation method of antimicrobial form oyster mushroom preservative film |
| CN109294183A (en) * | 2018-08-14 | 2019-02-01 | 佛山市三水智达塑料制品有限公司 | A kind of degradation plastic bottle composite material and preparation method |
| CN111073264A (en) * | 2019-12-28 | 2020-04-28 | 温岭东方红车料有限公司 | Bicycle saddle and forming process thereof |
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| 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 |
| CN103304851A (en) * | 2013-07-07 | 2013-09-18 | 华东理工大学 | High-starch-content waterproof totally-decomposed composite material and preparation method thereof |
| CN104109263A (en) * | 2014-06-30 | 2014-10-22 | 安徽巢湖南方膜业有限责任公司 | Starch-polyvinyl alcohol dual-degradationplastic film |
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2015
- 2015-06-02 CN CN201510293107.4A patent/CN104893208A/en active Pending
Patent Citations (4)
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| 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 |
| CN103304851A (en) * | 2013-07-07 | 2013-09-18 | 华东理工大学 | High-starch-content waterproof totally-decomposed composite material and preparation method thereof |
| CN104109263A (en) * | 2014-06-30 | 2014-10-22 | 安徽巢湖南方膜业有限责任公司 | Starch-polyvinyl alcohol dual-degradationplastic film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752688A (en) * | 2018-05-04 | 2018-11-06 | 佛山市瑞生海特生物科技有限公司 | A kind of preparation method of antimicrobial form oyster mushroom preservative film |
| CN109294183A (en) * | 2018-08-14 | 2019-02-01 | 佛山市三水智达塑料制品有限公司 | A kind of degradation plastic bottle composite material and preparation method |
| CN111073264A (en) * | 2019-12-28 | 2020-04-28 | 温岭东方红车料有限公司 | Bicycle saddle and forming process thereof |
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Application publication date: 20150909 |
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