CN104893209A - Chinese yam starch stretching-resistant full-degradable plastic film and manufacturing method thereof - Google Patents
Chinese yam starch stretching-resistant full-degradable plastic film and manufacturing method thereof Download PDFInfo
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- CN104893209A CN104893209A CN201510293132.2A CN201510293132A CN104893209A CN 104893209 A CN104893209 A CN 104893209A CN 201510293132 A CN201510293132 A CN 201510293132A CN 104893209 A CN104893209 A CN 104893209A
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- chinese yam
- yam starch
- polyvinyl alcohol
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Abstract
The invention discloses a Chinese yam starch stretching-resistant full-degradable plastic film which adopts polyvinyl alcohol and Chinese yam starch as main film forming matters. Compared with the traditional technique, the Chinese yam starch stretching-resistant full-degradable plastic film is characterized in that a physicochemical process is adopted to modify nano silicon dioxide and the Chinese yam starch, and the other effective components are matched, so that hydroxy groups in the Chinese yam starch and polyvinyl alcohol molecules can be preferentially combined with a right amount of hydroxy groups on the nano silicon dioxide surface to form hydrogen bonds, thereby enhancing the compatibility between the Chinese yam starch and polyvinyl alcohol; and part of hydroxy groups in the Chinese yam starch and polyvinyl alcohol are sealed to improve the water resistance of the film. The prepared full-degradable plastic film has favorable stretching resistance and compatibility, can be quickly and completely degraded by microbes in soil after being buried in outdoor soil, and has great market potential.
Description
Technical field
The present invention relates to natural macromolecular material technical field, be specifically related to a kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film 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 a kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 99-113, Rhizoma Dioscoreae starch 71-83, nano silicon 1.3-3.3, urea-formaldehyde resin 2.4-4.5, diethylene glycol dibenzoate 4-6, sodium bicarbonate 0.2-0.5, silane coupling agent YDH-151 7-9, coal ash fiber 5-7, mica powder 1-2, suitable quantity of water.
The preparation method of described a kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film, is characterized in that comprising the following steps:
(1) Rhizoma Dioscoreae starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add sodium bicarbonate, diethylene glycol dibenzoate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification Rhizoma Dioscoreae starch naturally;
(2) by coal ash fiber vacuum-drying 2-4 hour at 105 DEG C, add silane coupling agent YDH-151, 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 Rhizoma Dioscoreae starch to be main film forming substance, compare the present invention to carry out modification by physico-chemical process to nano silicon and Rhizoma Dioscoreae starch coordinate other effective constituents to cooperatively interact simultaneously with traditional technology, hydroxyl in Rhizoma Dioscoreae 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 Rhizoma Dioscoreae starch and polyvinyl alcohol, close the part of hydroxyl in Rhizoma Dioscoreae starch and polyvinyl alcohol, improve film water tolerance, obtained Based Full-degradable Plastics Film has good stretch-proof performance and consistency, bury through field soil and can guarantee that described Based Full-degradable Plastics Film by the microorganism in soil fast and degrade completely, market potential is large.
Embodiment
Described a kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 111, Rhizoma Dioscoreae starch 79, nano silicon 2.3, urea-formaldehyde resin 3.4, diethylene glycol dibenzoate 5, sodium bicarbonate 0.4, silane coupling agent YDH-151 8, coal ash fiber 6, mica powder 1, suitable quantity of water.
Making method comprises the following steps:
(1) Rhizoma Dioscoreae starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add sodium bicarbonate, diethylene glycol dibenzoate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification Rhizoma Dioscoreae starch naturally;
(2) by coal ash fiber vacuum-drying 2-4 hour at 105 DEG C, add silane coupling agent YDH-151, 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 9.69MPa, and elongation at break is 87.52%, and water-intake rate is 47.09%.
Claims (2)
1. a Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film, it is characterized in that, be made up of the raw material of following weight part: polyvinyl alcohol 99-113, Rhizoma Dioscoreae starch 71-83, nano silicon 1.3-3.3, urea-formaldehyde resin 2.4-4.5, diethylene glycol dibenzoate 4-6, sodium bicarbonate 0.2-0.5, silane coupling agent YDH-151 7-9, coal ash fiber 5-7, mica powder 1-2, suitable quantity of water.
2. the making method of a kind of Rhizoma Dioscoreae starch class stretch-proof Based Full-degradable Plastics Film according to claim 1, is characterized in that comprising the following steps:
(1) Rhizoma Dioscoreae starch is added suitable quantity of water and stir into paste, heating pre-gelatinized process 10-20 minute, add sodium bicarbonate, diethylene glycol dibenzoate, constant temperature is uniformly mixed 2-3h, and suction filtration dries to obtain modification Rhizoma Dioscoreae starch naturally;
(2) by coal ash fiber vacuum-drying 2-4 hour at 105 DEG C, add silane coupling agent YDH-151, 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 |
|---|---|---|---|
| CN201510293132.2A CN104893209A (en) | 2015-06-02 | 2015-06-02 | Chinese yam starch stretching-resistant full-degradable plastic film and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510293132.2A CN104893209A (en) | 2015-06-02 | 2015-06-02 | Chinese yam starch stretching-resistant full-degradable plastic film and manufacturing method thereof |
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| CN104893209A true CN104893209A (en) | 2015-09-09 |
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| CN201510293132.2A Pending CN104893209A (en) | 2015-06-02 | 2015-06-02 | Chinese yam starch stretching-resistant full-degradable plastic film and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286595A (en) * | 2016-04-11 | 2017-10-24 | 安徽颍美彩印包装有限公司 | A kind of packaging for foodstuff laminated film and its manufacture craft |
| CN110074389A (en) * | 2019-05-06 | 2019-08-02 | 河南牧业经济学院 | The Chinese yam starch preparation method of high resistant starch content and Chinese yam starch obtained |
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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2015
- 2015-06-02 CN CN201510293132.2A patent/CN104893209A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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| Title |
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| 孟祥胜，王鹏，毛桂洁: ""聚乙烯醇纳米二氧化硅复合薄膜的制备及性能"", 《高分子材料科学与工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286595A (en) * | 2016-04-11 | 2017-10-24 | 安徽颍美彩印包装有限公司 | A kind of packaging for foodstuff laminated film and its manufacture craft |
| CN110074389A (en) * | 2019-05-06 | 2019-08-02 | 河南牧业经济学院 | The Chinese yam starch preparation method of high resistant starch content and Chinese yam starch obtained |
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Application publication date: 20150909 |