CN105199341A - Konjac flying powder compound modified biomass-based polyester material and preparation method thereof - Google Patents
Konjac flying powder compound modified biomass-based polyester material and preparation method thereof Download PDFInfo
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- CN105199341A CN105199341A CN201510685463.0A CN201510685463A CN105199341A CN 105199341 A CN105199341 A CN 105199341A CN 201510685463 A CN201510685463 A CN 201510685463A CN 105199341 A CN105199341 A CN 105199341A
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Abstract
The invention relates to a konjac flying powder compound modified biomass-based polyester material and a preparation method thereof. The preparation method for the konjac flying powder compound modified biomass-based polyester material is characterized by comprising the following steps: (1) mixing the following raw materials in mass fraction: 100 parts of biomass-based polyester with 5 to 30 parts of konjac flying powder, to obtain a blend; (2) performing banburying on the blend in a banbury mixer to obtain a solid mixture; (3) performing hot press composite molding on the solid mixture on a hot press; vacuum drying for 12 to 72 hours after molding to obtain moisture to obtain the konjac flying powder compound modified biomass-based polyester material. The obtained polyester material is environmental friendly; the method has a simple process and is environmental friendly.
Description
Technical field
The present invention relates to a kind of fry starch of konjak compound modified biomass base polyester material and preparation method thereof, belong to natural macromolecular material field, also belong to ecological environment material nd field.
Background technology
Fry starch of konjak is lightweight, the fine powder that particle is little that descend slowly and lightly in processing konjaku powder process to surrounding, is the by product in the konjaku powder course of processing.There is inexpensive (by product), renewable, advantages of environment protection.China is the country that maximum konjak artificial cultivated area is maximum in the world, has abundant Amorphophallus Resources.Konjaku is used in field of food, field of new widely.Konjaku contains much starch, protein and carbohydrate and a small amount of mineral element.Along with petroleum resources growing tension, the prices of raw and semifnished materials rise steadily and environmental problem, and the investigation and application based on renewable resources natural macromolecular material is extensively paid attention to.Present stage for the main application of konjaku be konjaku powder as main raw material widespread use and field of food, but but application is rarely had for the by product fry starch of konjak in konjaku powder production process, few part is utilized by as low price feed or siccative, and major part is dropped.Thus the research directly applying to material development aspect for fry starch of konjak starting material but more rarely has and relates to.
Biodegradable material is by various ways such as photodegradation, chemical degradation, biological degradations, material degradation is become the lower-molecular substance of environmental sound, has the material of good Practical Performance, is a kind of method solving environmental problem.Biodegradable material comprises natural materials and synthetic materials, natural materials comprises starch, Mierocrystalline cellulose, chitin and their derivative thereof, biodegradable synthetic materials contains hydrolyzable functional group (as: ester bond, urea key, amido linkage, ehter bond etc.) usually, as poly butyric ester, poly(lactic acid), poly butylene succinate, polycaprolactone etc.Poly(lactic acid) and poly butylene succinate are two kinds of degradable polyester synthetic materialss, industrially obtain mainly through Biological resources fermentation.But its mechanical property (as fragility is large) and high price limit their ranges of application at Material Field.Utilize this kind of natural polymer of fry starch of konjak and poly butylene succinate or polylactic acid blend, while biological degradability being ensured, improve the performance of matrix material, expand the application space of poly butylene succinate or poly(lactic acid).There is not been reported to utilize the patent of fry starch of konjak modified butanediol ester poly succinic acid material at present.
Summary of the invention
The object of the present invention is to provide a kind of eco-friendly fry starch of konjak compound modified biomass base polyester material and preparation method thereof, the method technique be simple, environmental protection.
To achieve these goals, the technical solution adopted in the present invention is as follows: a kind of fry starch of konjak compound modified biomass base polyester material, it is characterized in that it is prepared from by fry starch of konjak, biomass-based polyester raw material, each raw material accounts for massfraction: biomass-based polyester is 100 parts, and fry starch of konjak is 5 ~ 30 parts.
Described biomass-based polyester is poly butylene succinate (PBS).
A preparation method for fry starch of konjak compound modified biomass base polyester material, is characterized in that comprising the steps:
1) accounting for massfraction by each raw material is: biomass-based polyester is 100 parts, and fry starch of konjak is 5 ~ 30 parts, chooses fry starch of konjak, biomass-based polyester raw material; Raw material is mixed, obtains blend;
2) blend is carried out banburying in Banbury mixer, banburying process condition is: temperature is 120 ~ 200 DEG C, and rotating speed is 10 ~ 120rpm, and the time is 1 ~ 30 minute, obtains solid mixture;
3) solid mixture is carried out hot pressing composite molding on thermocompressor: temperature is 120 ~ 160 DEG C, pressure is 10 ~ 60MPa, the time is 1 ~ 15 minute; After shaping, at 40 ~ 60 DEG C, vacuum-drying removes moisture in 12 ~ 72 hours, obtains fry starch of konjak compound modified biomass base polyester material.
Described fry starch of konjak is the by product in the konjaku powder course of processing, and wherein protein content is not higher than 20.7wt%.
Fry starch of konjak compound modified biomass base polyester material is primarily of natural degradable polymer fry starch of konjak and degradable poly butylene succinate composition.Main component is degradable substance, so the fry starch of konjak compound modified biomass base polyester material obtained is a kind of environment-friendly material.
The fry starch of konjak compound modified biomass base polyester material that the present invention obtains can be processed (can straight forming processing) is film, sheet material, section bar and container etc.; As wrapping material and engineering plastics etc.
The invention has the beneficial effects as follows: adopt fry starch of konjak to there is with low cost, environmental friendliness, with biomass-based polyester, there is the advantages such as high compatibility; Hot pressing composite molding after the mixing of employing Banbury mixer, has easy degraded, environmental protection, simple, quick, the efficient feature of technique.
Accompanying drawing explanation
The figure (being followed successively by embodiment 1 ~ 6 gained polyester material) of the fry starch of konjak compound modified biomass base polyester material that Fig. 1 obtains for the embodiment of the present invention 1 ~ 6.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Comparative example 1
A preparation method for polyester material, comprises the steps:
1) be 0 part by fry starch of konjak, poly butylene succinate (Anqing and emerging Chemical Co., Ltd. provide, and following examples are identical) is 100 parts, chooses poly butylene succinate, is tentatively mixed by poly butylene succinate, obtain blend;
2) then blend is carried out banburying in Banbury mixer (Chinese Changzhou Su Yan Science and Technology Ltd., following examples are identical): temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor (Wuhan Qi'en Science and Technology Development Co., Ltd., following examples are identical): temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains polyester material.
The polyester material obtained has good mechanical property, in table 1.
Embodiment 1
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 5 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
Described fry starch of konjak is the by product in the konjaku powder course of processing, and wherein protein content is not higher than 20.7wt%, and following examples are identical;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
The fry starch of konjak compound modified biomass base polyester material obtained has good mechanical property, in table 1.
Embodiment 2
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 10 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
The fry starch of konjak compound modified biomass base polyester material obtained has good mechanical property, in table 1.
Embodiment 3
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 15 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
The fry starch of konjak compound modified biomass base polyester material obtained has good mechanical property, in table 1.
Embodiment 4
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 20 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
Embodiment 5
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 25 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
Embodiment 6
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) be 30 parts by fry starch of konjak, poly butylene succinate is 100 parts, chooses fry starch of konjak, poly butylene succinate, fry starch of konjak and poly butylene succinate is tentatively mixed, obtains blend;
2) then blend is carried out banburying in Banbury mixer: temperature is 120 DEG C, rotating speed 48rpm (rev/min), 10 minutes time, obtain solid mixture;
3) then the solid mixture after banburying is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 10 minutes; After shaping, at 40 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material (see Fig. 1).
The mechanical property of table 1 fry starch of konjak compound modified biomass base polyester material
Mechanical property is newly thought carefully in Shenzhen with reference to National Standard of the People's Republic of China GB4456-84 the CMT6503 instrument of testing tool company is recorded, and rate of extension is 10mm/min.
As can be seen from Table 1, adding of fry starch of konjak the modulus of matrix material is improved to some extent; Meanwhile, the realization of fry starch of konjak high-content in matrix material, can reduce the cost of matrix material to a great extent, makes it to have better actual application prospect.
Embodiment 7
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) accounting for massfraction by each raw material is: poly butylene succinate (PBS) is 100 parts, and fry starch of konjak is 5 parts, chooses fry starch of konjak, poly butylene succinate (PBS) raw material; Raw material is mixed, obtains blend;
2) blend is carried out banburying in Banbury mixer, banburying process condition is: temperature is 120 DEG C, and rotating speed is 10rpm, and the time is 1 minute, obtains solid mixture;
3) solid mixture is carried out hot pressing composite molding on thermocompressor: temperature is 120 DEG C, pressure is 10MPa, the time is 1 minute; After shaping, at 60 DEG C, vacuum-drying removes moisture in 12 hours, obtains fry starch of konjak compound modified biomass base polyester material.
Embodiment 8
A preparation method for fry starch of konjak compound modified biomass base polyester material, comprises the steps:
1) accounting for massfraction by each raw material is: poly butylene succinate (PBS) is 100 parts, and fry starch of konjak is 30 parts, chooses fry starch of konjak, poly butylene succinate (PBS) raw material; Raw material is mixed, obtains blend;
2) blend is carried out banburying in Banbury mixer, banburying process condition is: temperature is 200 DEG C, and rotating speed is 120rpm, and the time is 30 minutes, obtains solid mixture;
3) solid mixture is carried out hot pressing composite molding on thermocompressor: temperature is 160 DEG C, pressure is 60MPa, the time is 15 minutes; After shaping, at 60 DEG C, vacuum-drying removes moisture in 72 hours, obtains fry starch of konjak compound modified biomass base polyester material.
The bound of raw material of the present invention, interval value, and the bound of processing parameter (as temperature, time, rotating speed, pressure etc.), interval value can realize the present invention, does not enumerate embodiment at this.
Claims (5)
1. a fry starch of konjak compound modified biomass base polyester material, it is characterized in that it is prepared from by fry starch of konjak, biomass-based polyester raw material, each raw material accounts for massfraction and is: biomass-based polyester is 100 parts, and fry starch of konjak is 5 ~ 30 parts.
2. a kind of fry starch of konjak compound modified biomass base polyester material according to claim 1, is characterized in that: described biomass-based polyester is poly butylene succinate.
3. the preparation method of a kind of fry starch of konjak compound modified biomass base polyester material as claimed in claim 1, is characterized in that comprising the steps:
1) accounting for massfraction by each raw material is: biomass-based polyester is 100 parts, and fry starch of konjak is 5 ~ 30 parts, chooses fry starch of konjak, biomass-based polyester raw material; Raw material is mixed, obtains blend;
2) blend is carried out banburying in Banbury mixer, banburying process condition is: temperature is 120 ~ 200
oc, rotating speed is 10 ~ 120rpm, and the time is 1 ~ 30 minute, obtains solid mixture;
3) solid mixture is carried out hot pressing composite molding on thermocompressor: temperature is 120 ~ 160
oc, pressure are 10 ~ 60MPa, the time is 1 ~ 15 minute; 40 ~ 60 after shaping
ounder C, vacuum-drying 12 ~ 72 hours removing moisture, obtains fry starch of konjak compound modified biomass base polyester material.
4. the preparation method of a kind of fry starch of konjak compound modified biomass base polyester material according to claim 3, is characterized in that: described biomass-based polyester is poly butylene succinate.
5. the preparation method of a kind of fry starch of konjak compound modified biomass base polyester material according to claim 3, is characterized in that: described fry starch of konjak is the by product in the konjaku powder course of processing, and wherein protein content is not higher than 20.7wt%.
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