CN103146032A - Preparation method of corn starch biodegradable plastic - Google Patents
Preparation method of corn starch biodegradable plastic Download PDFInfo
- Publication number
- CN103146032A CN103146032A CN2013100736519A CN201310073651A CN103146032A CN 103146032 A CN103146032 A CN 103146032A CN 2013100736519 A CN2013100736519 A CN 2013100736519A CN 201310073651 A CN201310073651 A CN 201310073651A CN 103146032 A CN103146032 A CN 103146032A
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- China
- Prior art keywords
- biodegradable plastic
- corn starch
- preparation
- gum
- melt
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- 229920000704 biodegradable plastic Polymers 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920002261 Corn starch Polymers 0.000 title abstract 8
- 239000008120 corn starch Substances 0.000 title abstract 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000002148 esters Chemical class 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 235000013305 food Nutrition 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 2
- 239000007857 degradation product Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- -1 phthalic acid ester Chemical class 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000012272 crop production Methods 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of corn starch biodegradable plastic, comprising the following steps of: placing corn starch in an airtight container, gradually heating to 160-180 DEG C, and insulating the heat for a certain time, thereby obtaining a transparent corn starch melt; and adding the corn starch melt, water and phthalic acid ester in an electromagnetic oscillator and mixing, then adding the raw materials in a single-screw extruder, plasticizing, extruding and granulating, and performing secondary processing, thereby obtaining the corn starch biodegradable plastic. Via the mode aforementioned, the preparation method of the corn starch biodegradable plastic provided by the invention is simple in processing technique, capable of greatly reducing production cost, and easy to industrially produce; the corn starch biodegradable plastic can be completely or partially degraded by micro-organisms in an environment, and the degradation products are low in harm to the environment; and the preparation method has a great industrial application prospect in the fields of packaging, food transport, agriculture, and the like.
Description
Technical field
The present invention relates to field of plastics processing, particularly relate to a kind of preparation method of W-Gum class biodegradable plastic.
Background technology
Being widely used once of plastics brought many convenience and great riches to people, but plastic garbage has also brought many worries to people now, become an important factor that threatens ecotope.Plastic refuse can be in soil big area residual, long time integration can cause soil compaction, affects farm crop and absorbs nutrient and moisture, causes crop production reduction.The plastic refuse that is discarded in land or water body is eaten as food by animal, can cause animal dead.Plastics waste gas amount is light, volume is large, generally adopts the method for direct landfill to process, but long-time hard degradation, the degredation plastic goods are nontoxic because of degraded product, pollution-free receiving publicity.Traditional degradable plastic product production process is complicated, and cost is high, is unfavorable for large-scale industry popularization.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of W-Gum class biodegradable plastic, and the method technique is simple, can reduce production costs.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of preparation method of W-Gum class biodegradable plastic is provided, comprises that step is:
(1) W-Gum is put in is warming up to gradually 160-180 ℃ in encloses container, the insulation certain hour obtains transparent W-Gum melt;
(2) described W-Gum melt, water and phthalic ester are joined in hertz oscilltor mix, then add and plastify extruding pelletization in single screw extrusion machine, carry out secondary processing and obtain the W-Gum biodegradable plastic.
In a preferred embodiment of the present invention, heat-up rate described in step (1) is that per minute heats up 5 ℃.
In a preferred embodiment of the present invention, described in step (1), soaking time is 0.5-1 hour.
In a preferred embodiment of the present invention, described in step (2), the oscillation frequency of hertz oscilltor is 7-10Hz.
The invention has the beneficial effects as follows: the preparation method of W-Gum class biodegradable plastic of the present invention, this preparation method's complete processing is simple, can greatly reduce production costs, be easy to suitability for industrialized production, can be degraded by microorganisms wholly or in part in environment, degraded product is little to environmental hazard, has good prospects for commercial application in fields such as packing, Food transport, agriculturals.
Embodiment
The below is described in detail preferred embodiment of the present invention, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
Embodiment one:
(1) W-Gum is put in is warming up to gradually 160 ℃ in encloses container, heat-up rate is that per minute heats up 5 ℃, is incubated 0.7 hour, obtains transparent W-Gum melt;
(2) described W-Gum melt, water and phthalic ester are joined in hertz oscilltor mix, the oscillation frequency of described hertz oscilltor is 10Hz, add again to plastify extruding pelletization in single screw extrusion machine, carry out secondary processing and obtain the W-Gum biodegradable plastic.
Embodiment two:
(1) W-Gum is put in is warming up to gradually 180 ℃ in encloses container, heat-up rate is that per minute heats up 5 ℃, is incubated 0.5 hour, obtains transparent W-Gum melt;
(2) described W-Gum melt, water and phthalic ester are joined in hertz oscilltor mix, the oscillation frequency of described hertz oscilltor is 7Hz, add again to plastify extruding pelletization in single screw extrusion machine, carry out secondary processing and obtain the W-Gum biodegradable plastic.
Embodiment three:
(1) W-Gum is put in is warming up to gradually 170 ℃ in encloses container, heat-up rate is that per minute heats up 5 ℃, is incubated 1 hour, obtains transparent W-Gum melt;
(2) described W-Gum melt, water and phthalic ester are joined in hertz oscilltor mix, the oscillation frequency of described hertz oscilltor is 8Hz, add again to plastify extruding pelletization in single screw extrusion machine, carry out secondary processing and obtain the W-Gum biodegradable plastic.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. the preparation method of a W-Gum class biodegradable plastic, is characterized in that, comprises that step is:
(1) W-Gum is put in is warming up to gradually 160-180 ℃ in encloses container, the insulation certain hour obtains transparent W-Gum melt;
(2) described W-Gum melt, water and phthalic ester are joined in hertz oscilltor mix, then add and plastify extruding pelletization in single screw extrusion machine, carry out secondary processing and obtain the W-Gum biodegradable plastic.
2. the preparation method of W-Gum class biodegradable plastic according to claim 1, is characterized in that, heat-up rate described in step (1) is that per minute heats up 5 ℃.
3. the preparation method of W-Gum class biodegradable plastic according to claim 1, is characterized in that, described in step (1), soaking time is 0.5-1 hour.
4. the preparation method of W-Gum class biodegradable plastic according to claim 1, is characterized in that, described in step (2), the oscillation frequency of hertz oscilltor is 7-10Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100736519A CN103146032A (en) | 2013-03-08 | 2013-03-08 | Preparation method of corn starch biodegradable plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100736519A CN103146032A (en) | 2013-03-08 | 2013-03-08 | Preparation method of corn starch biodegradable plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103146032A true CN103146032A (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100736519A Pending CN103146032A (en) | 2013-03-08 | 2013-03-08 | Preparation method of corn starch biodegradable plastic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103146032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117986699A (en) * | 2024-02-03 | 2024-05-07 | 南通瑞诚高分子材料有限公司 | Production process for preparing environment-friendly plastic by using biodegradable material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673438A (en) * | 1984-02-13 | 1987-06-16 | Warner-Lambert Company | Polymer composition for injection molding |
| CN1042370A (en) * | 1988-11-03 | 1990-05-23 | 伊凡·汤姆卡 | Thermoplastically processable starch and method for the production thereof |
| CN1637053A (en) * | 2004-12-10 | 2005-07-13 | 中国科学院长春应用化学研究所 | Completely biodegradable starch-base plastics and plastomer material and their prepn process |
-
2013
- 2013-03-08 CN CN2013100736519A patent/CN103146032A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673438A (en) * | 1984-02-13 | 1987-06-16 | Warner-Lambert Company | Polymer composition for injection molding |
| CN1042370A (en) * | 1988-11-03 | 1990-05-23 | 伊凡·汤姆卡 | Thermoplastically processable starch and method for the production thereof |
| CN1637053A (en) * | 2004-12-10 | 2005-07-13 | 中国科学院长春应用化学研究所 | Completely biodegradable starch-base plastics and plastomer material and their prepn process |
Non-Patent Citations (2)
| Title |
|---|
| 夏鹏 等: ""全生物降解淀粉塑料的研究进展"", 《中国塑料》 * |
| 张本山 等: ""淀粉微晶熔融性质的研究"", 《郑州工程学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117986699A (en) * | 2024-02-03 | 2024-05-07 | 南通瑞诚高分子材料有限公司 | Production process for preparing environment-friendly plastic by using biodegradable material |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130612 |