CN1135496A - Starch/polyethylene modified masterbatch - Google Patents
Starch/polyethylene modified masterbatch Download PDFInfo
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- CN1135496A CN1135496A CN 95111358 CN95111358A CN1135496A CN 1135496 A CN1135496 A CN 1135496A CN 95111358 CN95111358 CN 95111358 CN 95111358 A CN95111358 A CN 95111358A CN 1135496 A CN1135496 A CN 1135496A
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- starch
- polyethylene
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Abstract
The starch/polyethylene modified mother material comprises: (wt%) 27-50% of polyethylene, 47-70% of starch, 0.1-3% of maleic anhydride or maleate, 1-3% of flux and 0.1-1% of crosslinking agent. Said mother material is mainly used as raw material for making double degradation plastic film, and the obtained double degradation plastic film is good in strength, complete in degradation, and can be used as farm film, packing film and disposable domestic film.
Description
The present invention relates to a kind of plastics film masterbatch, particularly relate to a kind of starch/polyethylene modified masterbatch that is used to make degradable film.
The various polyethylene films of existing use are owing to can not degrade the waste serious environment pollution after the use.This has been carried out number of research projects both at home and abroad, and produced various degredation plastic films." plastics " magazine 1991 the 1st interim being entitled as " research of filled with starch polyethylene film " literary composition, reported and added the expanding material of ethylene-acrylic acid polymer, and starch has been carried out making starch PE master batch after the hydrophobic treatment with aluminate coupling agent as polyethylene and starch.The adding of therein ethylene-acrylic copolymer and aluminate coupling agent all is in order to improve starch and poly consistency, and when making starch and polyethylene blend, starch can be dispersed in the poly matrix.Starch and polyethylene are mechanically mixing in this class master batch, no chemical reaction, so the combined amount of starch is no more than 50%, and gained film and polyethylene film relatively its mechanical property gap is big, so be affected in the use.
The object of the present invention is to provide a kind of mechanical property good, the plastics film starch/polyethylene modified masterbatch completely of degrading.
The component of starch of the present invention/PE modified sexupara material comprises polyethylene 27～50% (weight), starch 47～70% (weight), maleic anhydride or maleic acid ester 0.1～3% (weight), fusing assistant 1～3% (weight) and linking agent 0.1～1% ((weight).Wherein fusing assistant is a kind of in polyethylene wax or the paraffin, also can be the mixture of the two, and the purpose that adds the low melting point auxiliary agent is to increase the flowability after each solid macromolecule compound fusion in the modifying process.Linking agent is a superoxide, as dicumyl peroxide, lauroyl peroxide, and special butyl ester of peroxidation phenylformic acid or benzoyl peroxide etc.The adding linking agent can improve the physical strength after masterbatch is blown out film.The blend of the polyethylene in the modified master of the present invention, starch and maleic anhydride or maleic acid ester is not a kind of simple mechanically mixing, but a kind of chemical reaction, final product is polyethylene/Malaysia acids/starch polyblend.Its reaction principle is polyethylene and maleic anhydride or maleic acid ester reaction, forms polyethylene/toxilic acid compounds, and the carboxyl functional group that forms in this compound can react with the hydroxyl in the starch molecule again, forms to connect the skill block compound.Make existing hydrophilic radical on the polyblend end group of generation, hydrophobic grouping is arranged again, improved the consistency between polyethylene and starch, do not fill because starch is not machinery in the polyethylene molecule, but the latter two form one by modification, and this has just improved mechanical properties in films that masterbatch blows.
Starch/polyethylene modified masterbatch of the present invention can come control degradation by adding a certain amount of photostabilizer and photosensitizers when blown film.
Starch/polyethylene modified masterbatch of the present invention is the double degradation plastic film raw material, and it is good that the film mechanical property blows in institute, and degraded fully.The masterbatch cost is low, and blown film is good.
Describe the embodiment of the invention below in detail.
Embodiment 1:
Component proportioning: polyethylene 27.75kg
Starch 64.75kg
Polyethylene wax 3 kg
Paraffin 1 kg
Dibutyl maleinate 3 kg
Dicumyl peroxide 0.5 kg
Earlier starch is carried out drying, treat to take by weighing above-mentioned weight after moisture content is reduced to below 5%, again each component is put into mixing roll, under 120-200 ℃ of temperature, stirred 60 minutes, send into granulation in the twin screw extruder after the taking-up, make starch/polyethylene modified masterbatch.Its masterbatch performance is as shown in table 1.Mechanical property with this masterbatch institute blown film is as shown in table 2.The degradation property of this film is as shown in table 3.
Embodiment 2:
The component proportioning
Polyethylene 39.2kg
Starch 58.8kg
Diallyl maleate 1 kg
Whiteruss 0.7 kg
Lauroyl peroxide 0.3 kg
The preparation method is with embodiment 1.Masterbatch is as shown in table 1, and the mechanical property of institute's blown film is as shown in table 2.
Embodiment 3:
The component proportioning:
Polyethylene 49 kg
Starch 49 kg
Maleic anhydride 0.8 kg
Polyethylene wax 0.7 kg
The special butyl ester 0.25kg of peroxidation phenylformic acid
Benzoyl peroxide 0.25kg
The preparation method is with embodiment 1.The masterbatch performance is as shown in table 1, and the mechanical property of masterbatch institute blown film is as shown in table 2.
Table 1: masterbatch performance of the present invention
| Density (g/cm 3) | Volatile matter (%) | Melt flow rate (g/10min) | Starch content (%) |
| ?0.91～0.93 | ?1.1～1.3 | ??0.70～5.00 | ?49～65 |
Table 2: the mechanical property of masterbatch of the present invention institute blown film
| Tensile strength (MPa) | Extension at break (%) | Right-angle tearing degree (N/mm) | ||||
| The present invention | Vertically | Laterally | Vertically | Laterally | Vertically | Laterally |
| ?13.0-14.0 | ?11.0-12.0 | ?150-154 | ?300-3.5 | ?54.0-54.5 | ?78.0-78.5 | |
| Polyethylene film state scale value | ?9.8 | ?9.5 | ?100 | ?100 | ?29.4 | ?29.4 |
Table 3: masterbatch of the present invention blows the film degradation experimental result
| 60 hours degrees of degradation of illumination | Bury the degree of degradation of soil after 185 days | ||||||
| Tensile strength decrement (%) | Elongation at break decrement (%) | Tensile strength decrement (%) | Elongation at break decrement (%) | ||||
| Laterally | Vertically | Laterally | Vertically | Laterally | Vertically | Laterally | Vertically |
| ?45.3 | ?25.7 | ?59.1 | ?14.1 | ?15. | ?5.9 | ?43.4 | ?14.8 |
Claims (3)
1, a kind of starch/polyethylene modified masterbatch is characterized in that component comprises polyethylene 27～50% (weight), starch 47～70% (weight), maleic anhydride or maleic acid ester 0.1～3% (weight), fusing assistant 1～3% (weight) and linking agent 0.1～1%.
2, starch/polyethylene modified masterbatch as claimed in claim 1 is characterized in that fusing assistant is one or both in polyethylene wax, the paraffin.
3, starch/polyethylene modified masterbatch as claimed in claim 1 is characterized in that linking agent is a superoxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111358 CN1135496A (en) | 1995-05-11 | 1995-05-11 | Starch/polyethylene modified masterbatch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111358 CN1135496A (en) | 1995-05-11 | 1995-05-11 | Starch/polyethylene modified masterbatch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1135496A true CN1135496A (en) | 1996-11-13 |
Family
ID=5078656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95111358 Pending CN1135496A (en) | 1995-05-11 | 1995-05-11 | Starch/polyethylene modified masterbatch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1135496A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004037914A1 (en) * | 2002-10-28 | 2004-05-06 | Huiqun Wang | Completely degradable paper-like material with starch as basic material and its preparation |
| CN101831097A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulching film |
| CN102924800A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Polyethylene resin composition for weathering resistance agriculture film, and preparation method thereof |
| CN102924797A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Weathering resistance polyethylene agriculture film resin composition and preparation method thereof |
| CN102924774A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Polyethylene resin composition for pipes |
| CN103087378A (en) * | 2013-01-23 | 2013-05-08 | 武汉华丽生物材料有限公司 | Biologic cast film and preparation method thereof |
| CN103570976A (en) * | 2013-10-16 | 2014-02-12 | 池州市大恒生化有限公司 | Master batches |
| CN104231095A (en) * | 2013-06-06 | 2014-12-24 | 丁飞鹏 | Environment-friendly rubber-plastic crosslinking agent and production method |
| GB2613013A (en) * | 2021-11-22 | 2023-05-24 | Amir Massoud Amiri | Starch grafted co-polymer |
-
1995
- 1995-05-11 CN CN 95111358 patent/CN1135496A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004037914A1 (en) * | 2002-10-28 | 2004-05-06 | Huiqun Wang | Completely degradable paper-like material with starch as basic material and its preparation |
| CN101831097A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulching film |
| CN102924800A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Polyethylene resin composition for weathering resistance agriculture film, and preparation method thereof |
| CN102924797A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Weathering resistance polyethylene agriculture film resin composition and preparation method thereof |
| CN102924774A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Polyethylene resin composition for pipes |
| CN102924797B (en) * | 2011-08-10 | 2014-06-04 | 中国石油天然气股份有限公司 | Weathering resistance polyethylene agriculture film resin composition and preparation method thereof |
| CN102924800B (en) * | 2011-08-10 | 2014-06-04 | 中国石油天然气股份有限公司 | Polyethylene resin composition for weathering resistance agriculture film, and preparation method thereof |
| CN102924774B (en) * | 2011-08-10 | 2014-10-15 | 中国石油天然气股份有限公司 | Polyethylene resin composition for pipes |
| CN103087378A (en) * | 2013-01-23 | 2013-05-08 | 武汉华丽生物材料有限公司 | Biologic cast film and preparation method thereof |
| CN104231095A (en) * | 2013-06-06 | 2014-12-24 | 丁飞鹏 | Environment-friendly rubber-plastic crosslinking agent and production method |
| CN103570976A (en) * | 2013-10-16 | 2014-02-12 | 池州市大恒生化有限公司 | Master batches |
| GB2613013A (en) * | 2021-11-22 | 2023-05-24 | Amir Massoud Amiri | Starch grafted co-polymer |
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