CN101812188A - Method for preparing starch-based bio-resin suitable for blowing films - Google Patents
Method for preparing starch-based bio-resin suitable for blowing films Download PDFInfo
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- CN101812188A CN101812188A CN201019050014A CN201019050014A CN101812188A CN 101812188 A CN101812188 A CN 101812188A CN 201019050014 A CN201019050014 A CN 201019050014A CN 201019050014 A CN201019050014 A CN 201019050014A CN 101812188 A CN101812188 A CN 101812188A
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Abstract
The invention relates to the technical field of methods for producing degradable materials, in particular to a method for preparing a starch-based bio-resin suitable for blowing films. The method comprises the following steps of: adding starch, oxydol, ferrous sulfate, glycerol, polycaprolactone, nano organic modified montmorillonite and ethylene-acrylic acid polymer into a high-speed mixing machine, and stirring the materials uniformly; and putting the uniformly-mixed raw materials into a granulator to perform mixing, melting, extruding and cooling, and then cutting the mixture into granules to obtain a granular material of the starch-based bio-resin suitable for blowing the films. The production method of the invention has the advantages that: the process is simple, and the tenacity, the strength and the tensile strength of the blown films are superior to those of the films produced by using common degradable resin. The starch-based bio-resin has the advantages of high degradation properties, complete degradation, no pollution on environment, non-toxicity, and no damage to soil structures.
Description
Technical field:
The present invention relates to degradation material production method technical field, refer in particular to a kind of preparation method who is suitable for the starch-based bio-resin of blown film.
Background technology:
As everyone knows, white pollution is constantly breaking and is encircling the environment that we depend on for existence now, the harm that " white pollution " brings to people of trying every possible means to eliminate of whole world effort, and the underproduction of many good farmlands, desertification, the river stops up, and causes flood.Petroleum resources are in short supply, and oil price is constantly soaring, brought many non-persistent factors for human routine work, life, had a strong impact on the environment of entire society.
For a long time, our employed plastic sheeting for farm use material (for example water-retaining film) all is to use oil synthetic resins, as polyvinyl chloride, polypropylene, the disposable finished product that materials such as polyethylene are made, going out of use after using up is rubbish, what have is abandoned everywhere, what have is buried or burns by heap, has wasted resource greatly.These plastic prods need just can be decomposed in about 200 years.And it is carried out the direct atmosphere pollution of objectionable impurities and the water source that produce in the treating processes.These depleted water-retaining films also produce very big destruction to the Soil structure in soil, have directly caused a series of adverse consequencess such as the soil underproduction.
Solve " white pollution " in recent years the harm that the mankind produce is put on agenda by each development and developed country, cry is more and more higher, and various countries have dropped into a large amount of financial resource and material resource, and have taken out corresponding control measures, but effect is all not obvious.The applicant for these reasons, the production method of multiple degradable biological resin material was proposed through research and development, on the basis that the present invention is exactly the inventor based on scheme in the past, through improving a kind of preparation method who is suitable for the starch-based bio-resin of blown film who is proposed.
Summary of the invention:
Technical problem to be solved by this invention just is to provide a kind of preparation method who is suitable for the starch-based bio-resin of blown film.This film is discarded in the Nature or heap is embedded in the rubbish after using, and can be resolved into carbonic acid gas and water etc. fully to year in half a year, can not form Soil structure and destroy.
For solving the technology of the present invention problem, the present invention has adopted following technical scheme: this preparation methods comprises the steps: one, prepares raw material according to following weight percent: starch: 40-60%; Hydrogen peroxide: 0.1-5%; Ferrous sulfate: 0.01-1%; Glycerine: 10-20%; Polycaprolactone: 20-40%; Nano silicon: 1-10%; Ethylene-acrylic acid copolymer: 2-10%; Two, with starch, hydrogen peroxide, ferrous sulfate, glycerine, polycaprolactone, nanometer organic modification montmonrillonite, ethylene-acrylic acid copolymer, join in the high-speed mixer, stir; Three, the above-mentioned raw material that mixes is put into tablets press and carried out mixing, fusion, extrude, cool off the back pelletizing, obtain being suitable for the starch-based bio-resin particulate material of blown film.
The concentration of described hydrogen peroxide is 30%.
Adopted twin screw extruder in the described tablets press.
The advantage of production method of the present invention is that technology is simple, add materials such as hydrogen peroxide, ferrous sulfate, polynite in the raw material and can make the resin material of being produced be more suitable in blown film, and the film all produced owing to common degradable resin of the film toughness of being blown, intensity, tensile strength.Degradation property of the present invention is good, degraded fully, environmentally safe, nontoxicity, can Soil structure produce and destroy.
The specific embodiment mode:
The present invention is described further below in conjunction with embodiment,
This preparation methods comprises the steps: one, prepares raw material according to following weight percent:
Starch 40-60%
Hydrogen peroxide 0.1-5%
Ferrous sulfate 0.01-1%
Glycerine 10-20%
Polycaprolactone 20-40%
Nano silicon 1-10%
Ethylene-acrylic acid copolymer 2-10%
Two, with hydrogen peroxide, ferrous sulfate, glycerine, polycaprolactone, nanometer organic modification montmonrillonite, the ethylene-acrylic acid copolymer of starch, 30% concentration, join in the high-speed mixer, stir;
Three, the above-mentioned raw material that mixes is put into tablets press and carried out mixing, fusion, extrude, cool off the back pelletizing, obtain being suitable for the starch-based bio-resin particulate material of blown film.
The hydrogen peroxide that adds 30% concentration in the above-mentioned raw materials can play oxygenizement to starch.
Ferrous sulfate plays catalysis-restoring function.
Glycerine is as softening agent.
Polycaprolactone is a properties-correcting agent, adds the tensile property that polycaprolactone can promote product, increases the water resistance of product, makes the last film of producing have good intensity and ductility.
The nanometer organic modification montmonrillonite is the smectite clay through the dispersion of delaminating, purify remodeling, super-fine classified, special organic being composited, and average wafer thickness is less than 25nm, and smectite content is greater than 95%.It has good dispersing property, can widespread use macromolecular material industry as the additive of nanometer polymer macromolecular material, improve shock resistance, antifatigue, dimensional stability and gas barrier property etc., thereby play the effect that strengthens the comprehensive physicals of polymkeric substance, improve the material processing characteristics simultaneously.
Ethylene-acrylic acid copolymer is a kind of polymkeric substance with thermoplasticity and high cementability, because the existence of carboxyl group and the effect of hydrogen bond, the crystallization of polymkeric substance is suppressed, main chain linear destroyed, therefore improve its transparency and toughness, reduced fusing point and softening temperature.
Below be specific embodiments of the invention:
Embodiment one:
1, prepares 40 kilograms of starch, 1 kilogram in the hydrogen peroxide of 30% concentration, 0.1 kilogram in ferrous sulfate, 15 kilograms of glycerine, polycaprolactone: 40%; 2 kilograms of nanometer organic modification montmonrillonites, 1.9 kilograms of ethylene-acrylic acid copolymers.
2, with starch, hydrogen peroxide, ferrous sulfate, glycerine, polycaprolactone, nanometer organic modification montmonrillonite, ethylene-acrylic acid copolymer, join in the high-speed mixer, stir.
3, the above-mentioned raw material that mixes is put into tablets press and carried out mixing, fusion, extrude, cool off the back pelletizing, obtain being suitable for the starch-based bio-resin particulate material of blown film.
Adopted twin screw extruder in the tablets press of the present invention, will adopt the cooling extruded fusion billot of water-cooling pattern in the described tablets press, wherein, the tank temperature of cooling water should remain on 20 ℃.Ultimogenitary biodegradable resin particle specification is: granularity is at ￠ 2-3mm, and length is at 3-4mm, cylindrical particle.
Use when of the present invention, the resin of the present invention's preparation is processed into film by pattern making equipment.
Claims (3)
1. preparation method who is suitable for the starch-based bio-resin of blown film, it is characterized in that: this preparation method comprises the steps:
One, prepare raw material according to following weight percent:
Starch 40-60%
Hydrogen peroxide 0.1-5%
Ferrous sulfate 0.01-1%
Glycerine 10-20%
Polycaprolactone 20-40%
Nano silicon 1-10%
Ethylene-acrylic acid copolymer 2-10%
Two, with starch, hydrogen peroxide, ferrous sulfate, glycerine, polycaprolactone, nanometer organic modification montmonrillonite, ethylene-acrylic acid copolymer, join in the high-speed mixer, stir;
Three, the above-mentioned raw material that mixes is put into tablets press and carried out mixing, fusion, extrude, cool off the back pelletizing, obtain being suitable for the starch-based bio-resin particulate material of blown film.
2. a kind of preparation method who is suitable for the starch-based bio-resin of blown film according to claim 1 is characterized in that: the concentration of described hydrogen peroxide is 30%.
3. a kind of preparation method who is suitable for the starch-based bio-resin of blown film according to claim 1 is characterized in that: adopted twin screw extruder in the described tablets press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201019050014A CN101812188A (en) | 2010-02-02 | 2010-02-02 | Method for preparing starch-based bio-resin suitable for blowing films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201019050014A CN101812188A (en) | 2010-02-02 | 2010-02-02 | Method for preparing starch-based bio-resin suitable for blowing films |
Publications (1)
| Publication Number | Publication Date |
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| CN101812188A true CN101812188A (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201019050014A Pending CN101812188A (en) | 2010-02-02 | 2010-02-02 | Method for preparing starch-based bio-resin suitable for blowing films |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702580A (en) * | 2012-07-06 | 2012-10-03 | 西南科技大学 | Full-biodegradable starch-base in-situ fiber reinforced composite material and preparation method thereof |
| CN114907622A (en) * | 2022-04-24 | 2022-08-16 | 宁波能之光新材料科技股份有限公司 | High-performance plasticized starch and preparation process thereof |
-
2010
- 2010-02-02 CN CN201019050014A patent/CN101812188A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702580A (en) * | 2012-07-06 | 2012-10-03 | 西南科技大学 | Full-biodegradable starch-base in-situ fiber reinforced composite material and preparation method thereof |
| CN114907622A (en) * | 2022-04-24 | 2022-08-16 | 宁波能之光新材料科技股份有限公司 | High-performance plasticized starch and preparation process thereof |
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Application publication date: 20100825 |