CN104151495A - Formula and preparation process of phosphate starch-dibutyl maleate copolymer film - Google Patents
Formula and preparation process of phosphate starch-dibutyl maleate copolymer film Download PDFInfo
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- CN104151495A CN104151495A CN201410342447.7A CN201410342447A CN104151495A CN 104151495 A CN104151495 A CN 104151495A CN 201410342447 A CN201410342447 A CN 201410342447A CN 104151495 A CN104151495 A CN 104151495A
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Abstract
The invention provides a phosphate starch-dibutyl maleate copolymer film and a preparation method thereof. The film mainly comprises the following components: 15 parts of disodium hydrogen phosphate, 100 parts of corn starch, 129 parts of methylbenzene, 50 parts of ethyl acetate, 3 parts of BPO, 16 parts of acrylic acid, 3 parts of hydroquinone and 200 parts of water. The target film product is obtained by carrying out mixing and adjusting, then carrying out extrusion with a twin-screw extruder, water cooling and cutting to obtain a double degradation masterbatch and finally carrying out film blowing with a film blowing machine. The film and the preparation method have the beneficial effects that the adopted starch is rich in sources and low in cost and is environment-friendly; the prepared plastic film has high strength, is low in production cost, is biodegradable and can effectively relieve the problem of white pollution.
Description
Technical field:
The present invention relates to plastics film production technical field, be specifically related to a kind of phosphate ester starch-dibutyl maleate copolymerization film and preparation method thereof.
Background technology:
Flourish along with plastics industry, the environmental pollution that waste plastic film rubbish brings is also on the rise, and white pollution becomes the environmental problem of attracting attention in the whole world.Therefore, people must go into overdrive to develop biological degredation plastic film, administer plastic refuse environment is brought to pollution problem.
Starch is a kind of abundant, cheap natural macromolecular material of originating, also be a kind of inexhaustible renewable resources, it can be biodegradable under multiple envrionment conditions, final degraded product carbonic acid gas and water can pass through the photosynthesis recirculation of plant, can not cause any pollution to environment.Yet on starch molecular chain, contain great amount of hydroxy group, easily in molecular chain and molecular chain form hydrogen bond outward, so indissoluble, infusibility, and poor water resistance, one meets water or long-term storage easily absorbs moisture in damp atmosphere, affects its stability.
Summary of the invention:
Technical problem to be solved by this invention is to provide that a kind of technique is simple, production cost is low and environment amenable phosphate ester starch-dibutyl maleate copolymerization film and preparation method thereof.
Technical problem to be solved by this invention adopts following technical scheme to realize:
Phosphate ester starch-dibutyl maleate copolymerization film formulation, is characterized in that: its composition mainly comprises:
Phosphate ester starch-dibutyl maleate copolymerization thin film preparation process, is characterized in that: specifically comprise the following steps:
Step 1: water and Sodium phosphate dibasic are put into steel basin by proportioning, under constantly stirring, be warming up to 60 ℃, disodium phosphate soln is dissolved completely, after W-Gum and disodium phosphate soln fully being mixed by proportioning, add in reactor, material stirs intensification 70-80 ℃ in reactor, when discharge reduction to 20% is following, be warming up to 150-200 ℃, starch is reacted with Sodium phosphate dibasic, when the viscosity of material is greater than 50Pas, termination reaction, cooling discharge, obtains phosphate ester starch.
Step 2: toluene and vinyl acetic monomer are mixed;
Step 3: the phosphate ester starch in the mixed solvent in step 2 and step 1 is joined in bottle, stir 5-9 hour;
Step 4: heat up again, add BPO and vinylformic acid, keep reaction 1 hour at 90-100 ℃;
Step 5: add Resorcinol termination reaction, cooling;
Step 6: then use through twin screw extruder and extrude, make mother raw material degradable after water-cooled, cutting, obtain aimed thin film goods finally by inflation film manufacturing machine blown film.
The invention has the beneficial effects as follows: starch source of the present invention is abundant, cheap, environmentally friendly; And the plastics film intensity making is high, production cost is low, biodegradable, can effectively alleviate white pollution problems.
Embodiment:
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Specific embodiment: phosphate ester starch-dibutyl maleate copolymerization film formulation, its composition mainly comprises:
15 parts of Sodium phosphate dibasics, 100 parts of W-Gums, 129 parts of toluene, 50 parts of vinyl acetic monomers, BPO3 part, 16 parts, vinylformic acid, 3 parts of Resorcinol, 200 parts, water.
Phosphate ester starch-dibutyl maleate copolymerization thin film preparation process, specifically comprises the following steps:
Step 1: water and Sodium phosphate dibasic are put into steel basin by proportioning, under constantly stirring, be warming up to 60 ℃, disodium phosphate soln is dissolved completely, after W-Gum and disodium phosphate soln fully being mixed by proportioning, add in reactor, material stirs intensification 70-80 ℃ in reactor, when discharge reduction to 20% is following, be warming up to 150-200 ℃, starch is reacted with Sodium phosphate dibasic, when the viscosity of material is greater than 50Pas, termination reaction, cooling discharge, obtains phosphate ester starch.
Step 2: toluene and vinyl acetic monomer are mixed;
Step 3: the phosphate ester starch in the mixed solvent in step 2 and step 1 is joined in bottle, stir 5-9 hour;
Step 4: heat up again, add BPO and vinylformic acid, keep reaction 1 hour at 90-100 ℃;
Step 5: add Resorcinol termination reaction, cooling;
Step 6: then use through twin screw extruder and extrude, make mother raw material degradable after water-cooled, cutting, obtain aimed thin film goods finally by inflation film manufacturing machine blown film.
Phosphate ester starch-dibutyl maleate copolymerization film prepared by embodiment carries out the test of mechanical property, water resistance and degradation property, and testing method and result are as follows:
According to GB/T13022-1991, measure tensile strength and the elongation at break of film, according to GB/T1034-2008, measure the water-intake rate of film.
Soil buries degradation experiment: get a moisture eliminator, lay wherein the earth that 10cm is thick, regulating water-activity is 15%, film is cut into 5cm * 2cm size, at 90 ℃, dries to constant weight, then interval is buried in the earth uniformly, every 5d, take out film, with distilled water flushing surface, then at 90 ℃, dry to constant weight, calculate its rate of weight loss.
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength (MPa) | 40.82 | 35.42 | 40.34 |
| Elongation at break (%) | 125.45 | 151.63 | 145.92 |
| Water regain (%) | 18％ | 21％ | 25％ |
| Degradation time (moon) | 4.8 | 4.7 | 4.5 |
As can be seen from the above table, the thin film mechanical performance that the present invention makes is better, and water regain is suitable, and can be completely degraded at room temperature 5 months, is far superior to degradation time 9-15 month of common degradable film, thereby has reduced the pollution to environment.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. phosphate ester starch-dibutyl maleate copolymerization film formulation, is characterized in that: its composition mainly comprises:
2. phosphate ester starch-dibutyl maleate copolymerization thin film preparation process, is characterized in that: specifically comprise the following steps:
Step 1: water and Sodium phosphate dibasic are put into steel basin by proportioning, under constantly stirring, be warming up to 60 ℃, disodium phosphate soln is dissolved completely, after W-Gum and disodium phosphate soln fully being mixed by proportioning, add in reactor, material stirs intensification 70-80 ℃ in reactor, when discharge reduction to 20% is following, be warming up to 150-200 ℃, starch is reacted with Sodium phosphate dibasic, when the viscosity of material is greater than 50Pas, termination reaction, cooling discharge, obtains phosphate ester starch.
Step 2: toluene and vinyl acetic monomer are mixed;
Step 3: the phosphate ester starch in the mixed solvent in step 2 and step 1 is joined in bottle, stir 5-9 hour;
Step 4: heat up again, add BPO and vinylformic acid, keep reaction 1 hour at 90-100 ℃;
Step 5: add Resorcinol termination reaction, cooling;
Step 6: then use through twin screw extruder and extrude, make mother raw material degradable after water-cooled, cutting, obtain aimed thin film goods finally by inflation film manufacturing machine blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410342447.7A CN104151495A (en) | 2014-07-17 | 2014-07-17 | Formula and preparation process of phosphate starch-dibutyl maleate copolymer film |
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| CN201410342447.7A CN104151495A (en) | 2014-07-17 | 2014-07-17 | Formula and preparation process of phosphate starch-dibutyl maleate copolymer film |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284922A (en) * | 2008-05-20 | 2008-10-15 | 安徽德琳环保发展（集团）有限公司 | Biological degradation plastic with high starch content for blowing molding and method for preparing same |
| CN101367986A (en) * | 2007-08-14 | 2009-02-18 | 袁明龙 | Coupling and capacity increasing technique for coblended interface of biodegradation polylactic acid/starch composite material |
| CN102952239A (en) * | 2012-11-15 | 2013-03-06 | 永港伟方（北京）科技股份有限公司 | Starch derivative biological latex and preparation method and application thereof |
| CN103265730A (en) * | 2013-05-23 | 2013-08-28 | 苏州富通高新材料科技股份有限公司 | Degradable film containing starch and preparation method of degradable film |
-
2014
- 2014-07-17 CN CN201410342447.7A patent/CN104151495A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367986A (en) * | 2007-08-14 | 2009-02-18 | 袁明龙 | Coupling and capacity increasing technique for coblended interface of biodegradation polylactic acid/starch composite material |
| CN101284922A (en) * | 2008-05-20 | 2008-10-15 | 安徽德琳环保发展（集团）有限公司 | Biological degradation plastic with high starch content for blowing molding and method for preparing same |
| CN102952239A (en) * | 2012-11-15 | 2013-03-06 | 永港伟方（北京）科技股份有限公司 | Starch derivative biological latex and preparation method and application thereof |
| CN103265730A (en) * | 2013-05-23 | 2013-08-28 | 苏州富通高新材料科技股份有限公司 | Degradable film containing starch and preparation method of degradable film |
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Application publication date: 20141119 |
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