CN108586819A - A kind of degradable starch sill - Google Patents
A kind of degradable starch sill Download PDFInfo
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- CN108586819A CN108586819A CN201810416694.5A CN201810416694A CN108586819A CN 108586819 A CN108586819 A CN 108586819A CN 201810416694 A CN201810416694 A CN 201810416694A CN 108586819 A CN108586819 A CN 108586819A
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- starch
- mass parts
- degradable
- auxiliary agent
- raw material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of degradable starch sills, including following raw material and its weight fraction：Phenols epoxide is 5-10 mass parts；Native starch is 30-50 mass parts；Antioxidant is 1-2 mass parts；Lubricant is 0.5-1 mass parts；Catalyst is 0.1-0.5 mass parts；Anhydride grafting modified starch is 10-20 mass parts；Auxiliary agent is 5-10 mass parts；1-5 mass parts of ethylene oxidic ester.After being added to ethylene oxidic ester and specific auxiliary agent (nano silicon dioxide and anti-hydrolysis agent) in starch-based material, so that the mechanical property of the starch-based material, processing performance and resistant to hydrolysis have increased significantly, and greatly reduce cost, after being added to anhydride grafting modified starch and epoxidized vegetable oil in starch-based material so that the toughness of the starch-based material has increased significantly, extends the storage time of this starch-based material.
Description
Technical field
The present invention relates to a kind of degradation material technical field, specially a kind of degradable starch sill.
Background technology
The basic theory and latest Progress situation of starch-base biodegradation material, content are related to polymer chemistry, material
The subjects such as material, medicine, food intersect and fusion, and reflect the current research forward position of subject；Particular content includes starch
Structure and chemical property, starch chemically and physically modified and its biodegradation material preparation, property, structure feature and starch
Application situation and application example of the base biodegradation material in the fields such as industry, agricultural, medicine, food, building, daily-use chemical industry
Deng；Content is comprehensive, compact-sized, and elaboration is concise, explains the profound in simple terms, technical application, makes one to be easy on the basis of understanding
Grasp correlation theory and technology；Starch is a kind of inexpensive, degradable and repeatable profit for environmental-friendly plastic such as PLA
Filler.However, PLA and starch thermokinetics are incompatible, native starch as isolated particle can partially crystallizable, one
As crystallinity be 20%~45%.There is many hydrogen bonds between starch granules macromolecular, this weakens the shifting of starch polymer
It is dynamic, lead to native starch poor in processability and it is difficult to is distributed in PLA matrixes.In this case, dry starch is added to PLA
The middle hardness that can increase PLA matrixes, but the brittleness of PLA itself can be further increased.
Currently, there is also the places of some shortcomings for existing degradable starch sill, such as；It is existing degradable
The mechanical property of starch-based material, processing performance and hydrolytic Resistance are weaker, and substantially increase cost, and existing
Degradable starch sill toughness it is weaker, shorten the storage time of starch-based material.
Invention content
The purpose of the present invention is to provide a kind of degradable starch sills, solve asking proposed in background technology
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of degradable starch sill, including it is following
Raw material and its weight fraction：Phenols epoxide is 5-10 mass parts；Native starch is 30-50 mass parts；Antioxidant is 1-2
Mass parts；Lubricant is 0.5-1 mass parts；Catalyst is 0.1-0.5 mass parts；Anhydride grafting modified starch is 10-20 matter
Measure part；Auxiliary agent is 5-10 mass parts；1-5 mass parts of ethylene oxidic ester.
As the present invention a kind of preferred embodiment, the degradable starch sill, including following raw material and its
Weight fraction：Phenols epoxide is 5 mass parts；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is
0.5 mass parts；Catalyst is 0.1 mass parts；Anhydride grafting modified starch is 10 mass parts；1 mass parts of ethylene oxidic ester.
As the present invention a kind of preferred embodiment, the degradable starch sill, including following raw material and its
Weight fraction：Phenols epoxide is 5 mass parts；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is
0.5 mass parts；Catalyst is 0.1 mass parts；Anhydride grafting modified starch is 10 mass parts；Auxiliary agent is 5 mass parts；It shrinks sweet
1 mass parts of grease.
As a kind of preferred embodiment of the present invention, the preparation method of the degradable starch sill, preparation side
Steps are as follows for method：
A. above-mentioned raw materials are weighed according to parts by weight first；
B. after the completion of waiting for step a, then by the phenols epoxide weighed, native starch, anhydride grafting modified starch
It is poured into mixer with ethylene oxidic ester and is mixed and stirred, then by antioxidant, lubricant, anti-hydrolysis agent and helped again
The mixing containing phenols epoxide, native starch, anhydride grafting modified starch and ethylene oxidic ester mixture is put into agent
It is mixed and is stirred in device；
C. after the completion of waiting for step b, then catalyst is added in the mixer containing mixing material and is mixed and is urged
Change, time of catalysis is 10min, and temperature when catalysis is 50-60 DEG C；
D. after the completion of waiting for step c, then mixing material is added in extruder and carries out melt blending, be then total to again
The extrusion tie rod molding of mixed raw material, molding raw material is then cooled down, then again carry out molding raw material at pelletizing again
Reason.
As a kind of preferred embodiment of the present invention, the native starch is green starch, tapioca, sweet potato
One kind in starch, starch from sweet potato, potato starch, wheat starch, water caltrop starch, rice starch, Rhizoma Nelumbinis starch, cornstarch
Or it is two or more.
As a kind of preferred embodiment of the present invention, for the extruder using double screw extruder, described is double
The screw slenderness ratio of screw extruder is 35-45:1；The temperature of the melt blending is 160 DEG C -185 DEG C.
As a kind of preferred embodiment of the present invention, the auxiliary agent includes following raw material and its weight fraction：Nanometer two
Silica is 5 mass parts and anti-hydrolysis agent is 0.5 mass parts.
As a kind of preferred embodiment of the present invention, steps are as follows for the auxiliary agent preparation method：
E. above-mentioned raw materials are weighed according to parts by weight；
F. after the completion of waiting for step e, then the nano silicon dioxide weighed is put into grinder be ground it is broken, then
Ground good nano silicon dioxide is put into 180 mesh leakage sieve and is screened；
G. after the completion of waiting for step f, then the nano grade silica particles screened is poured into mixer again and are mixed
It closes, then anti-hydrolysis agent is put into mixer again, then water appropriate is added into mixer and is mixed, is mixed
Mix 10min -20min, mixing velocity 2000r/min；
H. after the completion of waiting for step g, then the auxiliary agent mixed cooled down, is then poured into glass jar again, for use.
Compared with prior art, beneficial effects of the present invention are as follows：
A kind of degradable starch sill of the present invention, by being added to ethylene oxidic ester and specific in starch-based material
Auxiliary agent (nano silicon dioxide and anti-hydrolysis agent) after so that mechanical property, processing performance and the resistant to hydrolysis of the starch-based material
It has increased significantly, and greatly reduces cost, due to being added to anhydride grafting modified starch in starch-based material
After epoxidized vegetable oil so that the toughness of the starch-based material has increased significantly, extends this starch-based material
Storage time.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific implementation mode is closed, the present invention is further explained.
The present invention provides a kind of technical solution：A kind of degradable starch sill, including following raw material and its weight point
Number：Phenols epoxide is 5-10 mass parts；Native starch is 30-50 mass parts；Antioxidant is 1-2 mass parts；Profit
Lubrication prescription is 0.5-1 mass parts；Catalyst is 0.1-0.5 mass parts；Anhydride grafting modified starch is 10-20 mass parts；Auxiliary agent
For 5-10 mass parts；1-5 mass parts of ethylene oxidic ester.
The degradable starch sill, including following raw material and its weight fraction：Phenols epoxide is 5 matter
Measure part；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is 0.5 mass parts；Catalyst is 0.1 mass parts；
Anhydride grafting modified starch is 10 mass parts；1 mass parts of ethylene oxidic ester.
The degradable starch sill, including following raw material and its weight fraction：Phenols epoxide is 5 matter
Measure part；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is 0.5 mass parts；Catalyst is 0.1 mass parts；
Anhydride grafting modified starch is 10 mass parts；Auxiliary agent is 5 mass parts；1 mass parts of ethylene oxidic ester.
The preparation method of the degradable starch sill, steps are as follows for preparation method：
A. above-mentioned raw materials are weighed according to parts by weight first；
B. after the completion of waiting for step a, then by the phenols epoxide weighed, native starch, anhydride grafting modified starch
It is poured into mixer with ethylene oxidic ester and is mixed and stirred, then by antioxidant, lubricant, anti-hydrolysis agent and helped again
The mixing containing phenols epoxide, native starch, anhydride grafting modified starch and ethylene oxidic ester mixture is put into agent
It is mixed and is stirred in device；
C. after the completion of waiting for step b, then catalyst is added in the mixer containing mixing material and is mixed and is urged
Change, time of catalysis is 10min, and temperature when catalysis is 50-60 DEG C；
D. after the completion of waiting for step c, then mixing material is added in extruder and carries out melt blending, be then total to again
The extrusion tie rod molding of mixed raw material, molding raw material is then cooled down, then again carry out molding raw material at pelletizing again
Reason.
The native starch is green starch, tapioca, sweet potato starch, starch from sweet potato, potato starch, wheat
One or more of starch, water caltrop starch, rice starch, Rhizoma Nelumbinis starch, cornstarch.
For the extruder using double screw extruder, the screw slenderness ratio of the double screw extruder is 35-
45:1；The temperature of the melt blending is 160 DEG C -185 DEG C.
The auxiliary agent includes following raw material and its weight fraction：Nano silicon dioxide is 5 mass parts and anti-hydrolysis agent is
0.5 mass parts.
Steps are as follows for the auxiliary agent preparation method：
E. above-mentioned raw materials are weighed according to parts by weight；
F. after the completion of waiting for step e, then the nano silicon dioxide weighed is put into grinder be ground it is broken, then
Ground good nano silicon dioxide is put into 180 mesh leakage sieve and is screened；
G. after the completion of waiting for step f, then the nano grade silica particles screened is poured into mixer again and are mixed
It closes, then anti-hydrolysis agent is put into mixer again, then water appropriate is added into mixer and is mixed, is mixed
Mix 10min -20min, mixing velocity 2000r/min；
H. after the completion of waiting for step g, then the auxiliary agent mixed cooled down, is then poured into glass jar again, for use.
When degradable starch-based material preparation, above-mentioned raw materials are weighed first according to parts by weight, then will weighed
Good phenols epoxide, native starch, anhydride grafting modified starch and ethylene oxidic ester is poured into mixer and is mixed
It closes and stirs, then antioxidant, lubricant, anti-hydrolysis agent and auxiliary agent are put into containing phenols epoxide, natural shallow lake again
It is mixed and is stirred in the mixer of powder, anhydride grafting modified starch and ethylene oxidic ester mixture, then catalyst is added
It is mixed and is catalyzed in the mixer containing mixing material, time of catalysis is 10min, and temperature when catalysis is 50-60
DEG C, then mixing material is added in extruder and carries out melt blending, the extrusion tie rod molding of blended material is then carried out again,
Then molding raw material is cooled down again, molding raw material is then subjected to pelletizing processing again.
The foregoing describe the basic principles, main features and the advantages of the invention, for people in the art
For member, it is clear that invention is not limited to the details of the above exemplary embodiments, and in spirit without departing substantially from the present invention or basic
In the case of feature, the present invention can be realized in other specific forms.Therefore, in all respects, should all will implement
Example regards exemplary as, and is non-limiting, and the scope of the present invention is by appended claims rather than above description limits
It is fixed, it is intended that all changes that come within the meaning and range of equivalency of the claims are included within the present invention.No
Any be considered as in claim should be limited the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only
It contains an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art answer
When considering the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms people in the art
The other embodiment that member is appreciated that.
Claims (8)
1. a kind of degradable starch sill, it is characterised in that：Including following raw material and its weight fraction：Phenols epoxide
For 5-10 mass parts；Native starch is 30-50 mass parts；Antioxidant is 1-2 mass parts；Lubricant is 0.5-1 mass parts；
Catalyst is 0.1-0.5 mass parts；Anhydride grafting modified starch is 10-20 mass parts；Auxiliary agent is 5-10 mass parts；It shrinks
1-5 mass parts of glyceride.
2. a kind of degradable starch sill according to claim 1, it is characterised in that：Including following raw material and its weight
Score：Phenols epoxide is 5 mass parts；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is 0.5 matter
Measure part；Catalyst is 0.1 mass parts；Anhydride grafting modified starch is 10 mass parts；1 mass parts of ethylene oxidic ester.
3. a kind of degradable starch sill according to claim 1, it is characterised in that：Including following raw material and its weight
Score：Phenols epoxide is 5 mass parts；Native starch is 30 mass parts；Antioxidant is 1 mass parts；Lubricant is 0.5 matter
Measure part；Catalyst is 0.1 mass parts；Anhydride grafting modified starch is 10 mass parts；Auxiliary agent is 5 mass parts；1 matter of ethylene oxidic ester
Measure part.
4. the preparation method of the degradable starch sill according to claims 1 to 3, it is characterised in that：Preparation method walks
It is rapid as follows：
A. above-mentioned raw materials are weighed according to parts by weight first；
B. after the completion of waiting for step a, then by the phenols epoxide weighed, native starch, anhydride grafting modified starch and contracting
Water glyceride, which is poured into mixer, to be mixed and is stirred, and is then again put into antioxidant, lubricant, anti-hydrolysis agent and auxiliary agent
To in the mixer containing phenols epoxide, native starch, anhydride grafting modified starch and ethylene oxidic ester mixture into
Row mixing and stirring；
C. after the completion of waiting for step b, then catalyst is added in the mixer containing mixing material and is mixed and is catalyzed, be catalyzed
Time be 10min, temperature when catalysis is 50-60 DEG C；
D. after the completion of waiting for step c, then mixing material is added in extruder and carries out melt blending, then carry out blended material again
Extrusion tie rod molding, then molding raw material is cooled down again, then again by molding raw material carry out pelletizing processing.
5. the preparation method of degradable starch sill according to claim 4, it is characterised in that：The native starch
For green starch, tapioca, sweet potato starch, starch from sweet potato, potato starch, wheat starch, water caltrop starch, rice starch,
One or more of Rhizoma Nelumbinis starch, cornstarch.
6. a kind of degradable starch sill according to claim 4, it is characterised in that：The extruder is using double
The screw slenderness ratio of screw extruder, the double screw extruder is 35-45:1；The temperature of the melt blending is 160
℃—185℃。
7. the preparation method of degradable starch sill according to claim 4, it is characterised in that：The auxiliary agent include with
Lower raw material and its weight fraction：Nano silicon dioxide is 5 mass parts and anti-hydrolysis agent is 0.5 mass parts.
8. the preparation method of degradable starch sill according to claim 7, it is characterised in that：The auxiliary agent preparation side
Steps are as follows for method：
E. above-mentioned raw materials are weighed according to parts by weight；
F. after the completion of waiting for step e, then the nano silicon dioxide weighed is put into grinder be ground it is broken, then will grinding
Good good nano silicon dioxide is put into 180 mesh leakage sieve and is screened；
G. after the completion of waiting for step f, then the nano grade silica particles screened is poured into mixer again and are mixed, so
Anti-hydrolysis agent is put into mixer again afterwards, then water appropriate is added into mixer and is mixed, mixing is carried out and mixes
10min-20min, mixing velocity 2000r/min；
H. after the completion of waiting for step g, then the auxiliary agent mixed cooled down, is then poured into glass jar again, for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416694.5A CN108586819A (en) | 2018-05-03 | 2018-05-03 | A kind of degradable starch sill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416694.5A CN108586819A (en) | 2018-05-03 | 2018-05-03 | A kind of degradable starch sill |
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| CN108586819A true CN108586819A (en) | 2018-09-28 |
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| CN201810416694.5A Pending CN108586819A (en) | 2018-05-03 | 2018-05-03 | A kind of degradable starch sill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110229531A (en) * | 2019-07-11 | 2019-09-13 | 江南大学 | A kind of complete bio-based source epoxy resin composite material and preparation method thereof |
| CN112409769A (en) * | 2020-12-23 | 2021-02-26 | 苏州润佳工程塑料股份有限公司 | PLA-PBAT blending modified degradable material |
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| CN102604349A (en) * | 2012-03-09 | 2012-07-25 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/ starch full bio-based degradable composite material and preparing method thereof |
| CN103627154A (en) * | 2013-10-31 | 2014-03-12 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/starch biologic degradable composite material and preparation method thereof |
| CN104693707A (en) * | 2015-03-11 | 2015-06-10 | 宁波家联塑料科技有限公司 | Polylactic acid/starch/fibrilia bio-based degradable composite material and preparation method thereof |
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2018
- 2018-05-03 CN CN201810416694.5A patent/CN108586819A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030092793A1 (en) * | 2001-11-15 | 2003-05-15 | Tianjin Danhai Co., Ltd | Process for the preparation of biodegradable resin |
| CN102604349A (en) * | 2012-03-09 | 2012-07-25 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/ starch full bio-based degradable composite material and preparing method thereof |
| CN103627154A (en) * | 2013-10-31 | 2014-03-12 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/starch biologic degradable composite material and preparation method thereof |
| CN104693707A (en) * | 2015-03-11 | 2015-06-10 | 宁波家联塑料科技有限公司 | Polylactic acid/starch/fibrilia bio-based degradable composite material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110229531A (en) * | 2019-07-11 | 2019-09-13 | 江南大学 | A kind of complete bio-based source epoxy resin composite material and preparation method thereof |
| CN110229531B (en) * | 2019-07-11 | 2021-03-23 | 江南大学 | Completely bio-based epoxy resin composite material and preparation method thereof |
| CN112409769A (en) * | 2020-12-23 | 2021-02-26 | 苏州润佳工程塑料股份有限公司 | PLA-PBAT blending modified degradable material |
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