CN107936306A - A kind of degradable protein plastic and its preparation method and application - Google Patents
A kind of degradable protein plastic and its preparation method and application Download PDFInfo
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- CN107936306A CN107936306A CN201711156046.2A CN201711156046A CN107936306A CN 107936306 A CN107936306 A CN 107936306A CN 201711156046 A CN201711156046 A CN 201711156046A CN 107936306 A CN107936306 A CN 107936306A
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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
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- 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
- C08K2201/018—Additives for biodegradable polymeric composition
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a kind of degradable protein plastic and its preparation method and application, the protein plastic, includes according to the raw material of parts by weight：27 35 parts of peanut protein, 13 21 parts of aqueous polyurethane, 35 45 parts of cornstarch, 37 parts of dichloroacetic acid, 11 19 parts of monoethanolamine.By corn starch ground, add ethanolamine solutions, it is warming up to 60 65 DEG C and seals 2.2 2.5h of stir process at such a temperature, it is cooled to room temperature addition di-chloroacetic acid solution, continue 75 80min of sealing stirring at such a temperature again, then carry out being ultrasonically treated 30 35min, centrifugation takes supernatant, is washed after drying, dries obtained mixture A；By mixture A and peanut protein, aqueous polyurethane be mixed, it is hot-forming to obtain the final product.The present invention has excellent antibacterial, tensile strength and elongation at break and water resistance, can be degradable into carbon dioxide and water, will not be to environmental danger.
Description
Technical field
The present invention relates to plastics arts, are specifically a kind of degradable protein plastic and its preparation method and application.
Background technology
Plastics are essential in daily life as one of using extremely wide material, its plasticity, stability and
While economic and practical offers convenience for people, scrapped plastic products are also resulted in --- i.e. " white garbage " is to the serious of environment
Pollution.It is synthetic plastic prepared by raw material since itself reusing is poor, environment degradable speed is slow using fossil fuel, can brings
Serious problem of environmental pollution.Biodegradable plastics can be completely decomposed into low molecular compound under the action of microorganism.
Its product stores convenient transportation, has a wide range of application, can be used not only for agricultural mulching, packaging bag, and be widely used in medicine
Field.Peanut protein has the advantages that yield is big, distribution is wide and renewable, but there are relatively low mechanical property and poor anti-
It is water-based etc..It is existing it is modified etc. made from plastics still remain the problems such as brittleness is big, tensile strength is low, water imbibition is low.
The content of the invention
It is above-mentioned to solve it is an object of the invention to provide a kind of degradable protein plastic and its preparation method and application
The problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of degradable protein plastic, includes according to the raw material of parts by weight：27-35 parts of peanut protein, aqueous polyurethane
13-21 parts, 35-45 parts of cornstarch, 3-7 parts of dichloroacetic acid, 11-19 parts of monoethanolamine.
As the further scheme of the present invention：The degradable protein plastic, includes according to the raw material of parts by weight：Peanut
- 33 parts of protein 29,15-19 parts of aqueous polyurethane, 38-42 parts of cornstarch, 4-6 parts of dichloroacetic acid, 13-17 parts of monoethanolamine.
As the further scheme of the present invention：The degradable protein plastic, includes according to the raw material of parts by weight：Peanut
Protein 31 part, 17 parts of aqueous polyurethane, 40 parts of cornstarch, 5 parts of dichloroacetic acid, 15 parts of monoethanolamine.
A kind of preparation method of degradable protein plastic, comprises the following steps：
1) deionized water of 10-12 times of monoethanolamine and its quality is mixed, ethanolamine solutions is made；By dichloroacetic acid and its
The deionized water mixing of 4-5 times of quality, is made di-chloroacetic acid solution；
2) by corn starch ground, excessively 120-150 mesh sieves, ethanolamine solutions is then added, are warming up to 60-65 DEG C and at this
At a temperature of seal stir process 2.2-2.5h, be cooled to room temperature addition di-chloroacetic acid solution, then continue sealing at such a temperature and stir
75-80min is mixed, then carries out supersound process 30-35min, centrifugation takes supernatant, is washed after drying, dries obtained mixing
Thing A；
3) 50-60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 68-70 DEG C simultaneously
Stir process 80-90min at such a temperature, is made mixture B；
4) it is mixture B is hot-forming up to protein plastic.
As the further scheme of the present invention：In step 2), mixing speed 60-100r/min.
As the further scheme of the present invention：In step 2), centrifugal rotational speed 3000r/min, centrifugation time 5-
10min。
As the further scheme of the present invention：In step 2), ultrasonic power 800W.
As the further scheme of the present invention：In step 3), mixing speed 200-220r/min.
As the further scheme of the present invention：In step 4), hot pressing temperature is 155 DEG C, hot pressing time 4min, hot pressing pressure
Power is 18MPa.
Another object of the present invention is to provide application of the protein plastic in food and drink plastics.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention using protein plastic made from above-mentioned raw materials and preparation process, have excellent antibacterial, tensile strength and
Elongation at break and water resistance.The present invention can be degradable into carbon dioxide and water, will not be to environmental danger, many
It is just degradable after 76 days, service life length.Preparation process of the present invention is simple, and operating process is simple, suitable for industrialized production.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of degradable protein plastic, including following raw material：It is peanut protein 27kg, water-based poly-
Urethane 13kg, cornstarch 35kg, dichloroacetic acid 3kg, monoethanolamine 11kg.
10 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality 4
Deionized water mixing again, is made di-chloroacetic acid solution.By corn starch ground, 120 mesh sieves are crossed, it is molten then to add monoethanolamine
Liquid, is warming up to 60 DEG C and seals stir process 2.2h at such a temperature, be cooled to room temperature addition di-chloroacetic acid solution, then in the temperature
Continuing sealing stirring 75min under degree, then carry out supersound process 30min, ultrasonic power 800W, centrifugation takes supernatant,
Washed after drying, dry obtained mixture A；Mixing speed is 60r/min, centrifugal rotational speed 3000r/min, and centrifugation time is
5min.50min is mixed in mixture A and peanut protein, aqueous polyurethane, 68 DEG C is then heated to and stirs at such a temperature
Processing 80min is mixed, mixture B is made；Mixing speed is 200r/min.Mixture B is hot-forming up to protein plastic, hot pressing
Temperature is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa.
Embodiment 2
In the embodiment of the present invention, a kind of degradable protein plastic, including following raw material：It is peanut protein 35kg, water-based poly-
Urethane 21kg, cornstarch 45kg, dichloroacetic acid 7kg, monoethanolamine 19kg.
12 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality 5
Deionized water mixing again, is made di-chloroacetic acid solution.By corn starch ground, 150 mesh sieves are crossed, it is molten then to add monoethanolamine
Liquid, is warming up to 65 DEG C and seals stir process 2.5h at such a temperature, be cooled to room temperature addition di-chloroacetic acid solution, then in the temperature
Continuing sealing stirring 80min under degree, then carry out supersound process 35min, ultrasonic power 800W, centrifugation takes supernatant,
Washed after drying, dry obtained mixture A；Mixing speed is 100r/min, centrifugal rotational speed 3000r/min, and centrifugation time is
10min.60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 70 DEG C and at such a temperature
Stir process 90min, is made mixture B；Mixing speed is 220r/min.Mixture B is hot-forming up to protein plastic, heat
It is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa to press temperature.
Embodiment 3
In the embodiment of the present invention, a kind of degradable protein plastic, including following raw material：It is peanut protein 29kg, water-based poly-
Urethane 15kg, cornstarch 38kg, dichloroacetic acid 4kg, monoethanolamine 13kg.
11 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality 5
Deionized water mixing again, is made di-chloroacetic acid solution.By corn starch ground, 150 mesh sieves are crossed, it is molten then to add monoethanolamine
Liquid, is warming up to 62 DEG C and seals stir process 2.5h at such a temperature, be cooled to room temperature addition di-chloroacetic acid solution, then in the temperature
Continuing sealing stirring 80min under degree, then carry out supersound process 35min, ultrasonic power 800W, centrifugation takes supernatant,
Washed after drying, dry obtained mixture A；Mixing speed is 100r/min, centrifugal rotational speed 3000r/min, and centrifugation time is
10min.60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 70 DEG C and at such a temperature
Stir process 90min, is made mixture B；Mixing speed is 220r/min.Mixture B is hot-forming up to protein plastic, heat
It is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa to press temperature.
Embodiment 4
In the embodiment of the present invention, a kind of degradable protein plastic, including following raw material：It is peanut protein 33kg, water-based poly-
Urethane 19kg, cornstarch 42kg, dichloroacetic acid 6kg, monoethanolamine 17kg.
11 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality 5
Deionized water mixing again, is made di-chloroacetic acid solution.By corn starch ground, 150 mesh sieves are crossed, it is molten then to add monoethanolamine
Liquid, is warming up to 62 DEG C and seals stir process 2.5h at such a temperature, be cooled to room temperature addition di-chloroacetic acid solution, then in the temperature
Continuing sealing stirring 80min under degree, then carry out supersound process 35min, ultrasonic power 800W, centrifugation takes supernatant,
Washed after drying, dry obtained mixture A；Mixing speed is 100r/min, centrifugal rotational speed 3000r/min, and centrifugation time is
10min.60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 70 DEG C and at such a temperature
Stir process 90min, is made mixture B；Mixing speed is 220r/min.Mixture B is hot-forming up to protein plastic, heat
It is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa to press temperature.
Embodiment 5
In the embodiment of the present invention, a kind of degradable protein plastic, including following raw material：It is peanut protein 31kg, water-based poly-
Urethane 17kg, cornstarch 40kg, dichloroacetic acid 5kg, monoethanolamine 15kg.
11 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality 5
Deionized water mixing again, is made di-chloroacetic acid solution.By corn starch ground, 150 mesh sieves are crossed, it is molten then to add monoethanolamine
Liquid, is warming up to 62 DEG C and seals stir process 2.5h at such a temperature, be cooled to room temperature addition di-chloroacetic acid solution, then in the temperature
Continuing sealing stirring 80min under degree, then carry out supersound process 35min, ultrasonic power 800W, centrifugation takes supernatant,
Washed after drying, dry obtained mixture A；Mixing speed is 100r/min, centrifugal rotational speed 3000r/min, and centrifugation time is
10min.60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 70 DEG C and at such a temperature
Stir process 90min, is made mixture B；Mixing speed is 220r/min.Mixture B is hot-forming up to protein plastic, heat
It is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa to press temperature.
Comparative example 1
In addition to monoethanolamine is not contained, its raw material and preparation process are consistent with embodiment 5.
Comparative example 2
Only cornstarch, its preparation process are consistent with embodiment 5.
Comparative example 3
Only cornstarch, monoethanolamine, its preparation process are consistent with embodiment 5.
Comparative example 4
Each raw material is directly mixed, adds the other materials that embodiment 5 is added, 60min is mixed, then heats to 70
DEG C and stir process 90min at such a temperature, mixture B is made；Mixing speed is 220r/min.Mixture B is hot-forming
Up to protein plastic, hot pressing temperature is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa.The additive amount of each raw material with
Embodiment 5 is consistent.
Embodiment 6
Performance contrast experiment is carried out to embodiment 1-5 and comparative example 1-4, control group selects commercially available certain soybean protein modeling
Material, experimental data are as shown in table 1.Bacterial species when bacteriostasis rate is tested are staphylococcus aureus, streptococcus.
Table 1
The present invention is acted synergistically, is had excellent using protein plastic made from above-mentioned raw materials and preparation process
Antibacterial, tensile strength and elongation at break.The present invention and control group can be degradable into carbon dioxide and water, will not be to environment
Harm is produced, but the present invention is just degradable after no less than 76 days, greatly exceed control group, and extend the present invention uses the longevity
Life.1-5 water imbibitions of the embodiment of the present invention are below 4.8%, and comparative example 1-4 water imbibitions are above 13.9%, and control group is higher than
10%.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of degradable protein plastic, it is characterised in that include according to the raw material of parts by weight：27-35 parts of peanut protein, water
13-21 parts of polyurethane of property, 35-45 parts of cornstarch, 3-7 parts of dichloroacetic acid, 11-19 parts of monoethanolamine.
2. degradable protein plastic according to claim 1, it is characterised in that include according to the raw material of parts by weight：Flower
29-33 parts of raw albumen, 15-19 parts of aqueous polyurethane, 38-42 parts of cornstarch, 4-6 parts of dichloroacetic acid, 13-17 parts of monoethanolamine.
3. degradable protein plastic according to claim 1, it is characterised in that include according to the raw material of parts by weight：Flower
31 parts of raw albumen, 17 parts of aqueous polyurethane, 40 parts of cornstarch, 5 parts of dichloroacetic acid, 15 parts of monoethanolamine.
A kind of 4. preparation method of degradable protein plastic as described in claim 1-3 is any, it is characterised in that including with
Lower step：
1）10-12 times of deionized water of monoethanolamine and its quality is mixed, ethanolamine solutions are made；By dichloroacetic acid and its quality
4-5 times of deionized water mixing, is made di-chloroacetic acid solution；
2）By corn starch ground, 120-150 mesh sieves are crossed, ethanolamine solutions is then added, is warming up to 60-65 DEG C and in the temperature
Lower sealing stir process 2.2-2.5h, is cooled to room temperature addition di-chloroacetic acid solution, then continues sealing stirring 75- at such a temperature
80min, then carries out supersound process 30-35min, and centrifugation takes supernatant, is washed after drying, dries obtained mixture A；
3）50-60min is mixed in mixture A and peanut protein, aqueous polyurethane, then heats to 68-70 DEG C and at this
At a temperature of stir process 80-90min, mixture B is made；
4）Mixture B is hot-forming up to protein plastic.
5. the preparation method of degradable protein plastic according to claim 4, it is characterised in that step 2）In, stirring
Speed is 60-100r/min.
6. the preparation method of degradable protein plastic according to claim 4, it is characterised in that step 2）In, centrifugation
Rotating speed is 3000r/min, centrifugation time 5-10min.
7. the preparation method of degradable protein plastic according to claim 4, it is characterised in that step 2）In, ultrasound
Power is 800W.
8. the preparation method of degradable protein plastic according to claim 4, it is characterised in that step 3）In, stirring
Speed is 200-220r/min.
9. the preparation method of degradable protein plastic according to claim 4, it is characterised in that step 4）In, hot pressing
Temperature is 155 DEG C, hot pressing time 4min, hot pressing pressure 18MPa.
10. application of the protein plastic as described in claim 1-3 is any in food and drink plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156046.2A CN107936306A (en) | 2017-11-20 | 2017-11-20 | A kind of degradable protein plastic and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711156046.2A CN107936306A (en) | 2017-11-20 | 2017-11-20 | A kind of degradable protein plastic and its preparation method and application |
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| CN107936306A true CN107936306A (en) | 2018-04-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957258A (en) * | 2019-02-01 | 2019-07-02 | 广东工业大学 | A kind of plastic material and its preparation method and application |
| CN111875854A (en) * | 2020-08-06 | 2020-11-03 | 蔡伟华 | Environment-friendly easily-degradable plastic and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583884A (en) * | 2004-05-24 | 2005-02-23 | 武汉大学 | Soya protein plastic with water polyurethane modification and preparing method thereof |
-
2017
- 2017-11-20 CN CN201711156046.2A patent/CN107936306A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583884A (en) * | 2004-05-24 | 2005-02-23 | 武汉大学 | Soya protein plastic with water polyurethane modification and preparing method thereof |
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| Title |
|---|
| DAN-YANG XIE等: ""Roles of Soft Segment Length in Structure and Property of Soy Protein Isolate/Waterborne Polyurethane Blend Films"", 《INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH》 * |
| 娄春华等: "《聚合物结构与性能》", 31 May 2016, 哈尔滨工程大学出版社 * |
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| 王澜等: "《高分子材料》", 31 January 2009, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957258A (en) * | 2019-02-01 | 2019-07-02 | 广东工业大学 | A kind of plastic material and its preparation method and application |
| CN111875854A (en) * | 2020-08-06 | 2020-11-03 | 蔡伟华 | Environment-friendly easily-degradable plastic and preparation method thereof |
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