CN105968417A - Biodegradable material and application thereof to plastic products - Google Patents
Biodegradable material and application thereof to plastic products Download PDFInfo
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- CN105968417A CN105968417A CN201610470522.7A CN201610470522A CN105968417A CN 105968417 A CN105968417 A CN 105968417A CN 201610470522 A CN201610470522 A CN 201610470522A CN 105968417 A CN105968417 A CN 105968417A
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- mercaptoethanol
- pentaerythritol ester
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a biodegradable material and the application thereof to plastic products. The biodegradable material is prepared from the following raw materials in parts by weight: 25 to 35 parts of faba bean starch, 10 to 20 parts of soybean starch, 6 to 8 parts of polylactic acid, 1 to 3 parts of triethanolamine, 2 to 4 parts of diethylene glycol, 0.6 to 0.8 part of n-butyl alcohol, 2 to 4 parts of magnesium stearate, 1 to 3 parts of dodecahydroxyl stearic acid, 3 to 5 parts of oxidated castor oil, and 6 to 8 parts of pentaerythritol ester and mercaptoethanol, wherein the weight part ratio of pentaerythritol ester to mercaptoethanol is (5 to 7):1. The biodegradable material provided by the invention not only can be subjected to biodegradation, but also has excellent tensile strength and elongation at break, and overcomes defects in the prior art. The technical effect relates to the weight part ratio of pentaerythritol ester to mercaptoethanol which are taken as raw materials, and the effect is the best when the weight part ratio of pentaerythritol ester to mercaptoethanol is (5 to 7):1. The biodegradable material can be used for preparing degradable plastic products, and is healthy and environment-friendly.
Description
Technical field
The invention belongs to biological material field, be specifically related to a kind of Biodegradable material and the application in plastic thereof.
Background technology
Biodegradation material refers to the material can degraded under the effect of soil microorganism and enzyme, refers to further at certain condition
Under, biodegradable macromolecular material can be caused under the microbial action of the natures such as antibacterial, mycete, algae.Preferably
Biodegradation material, under microbial action, can be completely decomposed into CO2And H2O.Can divide according to mechanism of degradation biodegradation material
For biological destructive material and Biodegradable Materials.Biological damage material belongs to incomplete degradable material, refers to natural polymer
The biology with good physical mechanical performance and processing characteristics that sub and universal synthesis macromolecular material is blended or copolymerization prepares can drop
Solve material, refer mainly to mix type degradable material.Biodegradable Materials refers mainly to itself can be by antibacterial, fungus, actinomycetes
The biodegradation material all decomposed Deng microorganism, mainly has chemosynthesis type biodegradation material, natural polymer subtype and micro-life
Thing synthesis type degradable material etc..
Summary of the invention
It is an object of the invention to provide a kind of Biodegradable material and the application in plastic thereof.
The above-mentioned purpose of the present invention is achieved by techniques below scheme:
A kind of Biodegradable material, is prepared from by the raw material of following weight portion: Faba bean starch, 25～35 parts；Semen sojae atricolor is formed sediment
Powder, 10～20 parts；Polylactic acid, 6～8 parts；Triethanolamine, 1～3 part；Diethylene glycol, 2～4 parts；N-butyl alcohol, 0.6～0.8 part；
Magnesium stearate, 2～4 parts；Ten dihydroxystearic acids, 1～3 part；Blown castor oil, 3～5 parts；Pentaerythritol ester and mercaptoethanol
Totally 6～8 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 5～7:1.
Further, described Biodegradable material is prepared from by the raw material of following weight portion: Faba bean starch, 30 parts；
Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；N-butyl alcohol, 0.7 part；Stearic acid
Magnesium, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester and mercaptoethanol totally 7 parts, season penta
The weight ratio of four alcohol esters and mercaptoethanol is 6:1.
Further, described Biodegradable material is prepared from by the raw material of following weight portion: Faba bean starch, 25 parts；
Soybean starch, 10 parts；Polylactic acid, 6 parts；Triethanolamine, 1 part；Diethylene glycol, 2 parts；N-butyl alcohol, 0.6 part；Stearic acid
Magnesium, 2 parts；Ten dihydroxystearic acids, 1 part；Blown castor oil, 3 parts；Pentaerythritol ester and mercaptoethanol totally 6 parts, season penta
The weight ratio of four alcohol esters and mercaptoethanol is 5:1.
Further, described Biodegradable material is prepared from by the raw material of following weight portion: Faba bean starch, 35 parts；
Soybean starch, 20 parts；Polylactic acid, 8 parts；Triethanolamine, 3 parts；Diethylene glycol, 4 parts；N-butyl alcohol, 0.8 part；Stearic acid
Magnesium, 4 parts；Ten dihydroxystearic acids, 3 parts；Blown castor oil, 5 parts；Pentaerythritol ester and mercaptoethanol totally 8 parts, season penta
The weight ratio of four alcohol esters and mercaptoethanol is 7:1.
The preparation method of above-mentioned Biodegradable material, comprises the steps:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is
200～300 revs/min, mixing time is 20～30min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 200～300 revs/min, and mixing time is 25～35min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is
35:1～45:1, twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 80～90 DEG C, and the second zone temperatures is
105～115 DEG C, the 3rd zone temperatures is 115～125 DEG C, and the 4th zone temperatures is 125～135 DEG C, carries out pelletizing process after extruding.
The application in preparing plastic of the above-mentioned Biodegradable material.
Advantages of the present invention:
The Biodegradable material that the present invention provides is possible not only to biodegradation, and has outstanding hot strength and extension at break
Rate, overcomes the deficiencies in the prior art.This technique effect has with the weight ratio of pentaerythritol ester in raw material and mercaptoethanol
Closing, when the weight ratio of pentaerythritol ester and mercaptoethanol is 5～7:1, effect is outstanding.
Detailed description of the invention
Further illustrate the essentiality content of the present invention below in conjunction with embodiment, but do not limit scope with this.To the greatest extent
The present invention is explained in detail by pipe with reference to preferred embodiment, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Embodiment 1: the preparation of Biodegradable material
Parts by weight of raw materials compares:
Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 6:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
Embodiment 2: the preparation of Biodegradable material
Parts by weight of raw materials compares:
Faba bean starch, 25 parts；Soybean starch, 10 parts；Polylactic acid, 6 parts；Triethanolamine, 1 part；Diethylene glycol, 2 parts；
N-butyl alcohol, 0.6 part；Magnesium stearate, 2 parts；Ten dihydroxystearic acids, 1 part；Blown castor oil, 3 parts；Pentaerythritol ester
With mercaptoethanol totally 6 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 5:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
Embodiment 3: the preparation of Biodegradable material
Parts by weight of raw materials compares:
Faba bean starch, 35 parts；Soybean starch, 20 parts；Polylactic acid, 8 parts；Triethanolamine, 3 parts；Diethylene glycol, 4 parts；
N-butyl alcohol, 0.8 part；Magnesium stearate, 4 parts；Ten dihydroxystearic acids, 3 parts；Blown castor oil, 5 parts；Pentaerythritol ester
With mercaptoethanol totally 8 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 7:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
Embodiment 4: the preparation of Biodegradable material
Parts by weight of raw materials compares:
Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 5:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
Embodiment 5: the preparation of Biodegradable material
Parts by weight of raw materials compares:
Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 7:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
The weight ratio of embodiment 6: comparative example, pentaerythritol ester and mercaptoethanol is 4:1
Parts by weight of raw materials compares:
Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 4:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
The weight ratio of embodiment 7: comparative example, pentaerythritol ester and mercaptoethanol is 8:1
Parts by weight of raw materials compares:
Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 8:1.
Preparation method:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is 250
Rev/min, mixing time is 25min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 250 revs/min, and mixing time is 30min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is 40:1,
Twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 85 DEG C, and the second zone temperatures is 110 DEG C, the 3rd section temperature
Degree is 120 DEG C, and the 4th zone temperatures is 130 DEG C, carries out pelletizing process after extruding.
Embodiment 8: effect example
The biodegradation material of embodiment 1～7 is prepared respectively and becomes thin film, measure its hot strength and elongation at break, specifically
Result such as following table.
| Hot strength (MPa) | Elongation at break (%) | |
| Embodiment 1 | 37.4 | 565 |
| Embodiment 4 | 36.9 | 543 |
| Embodiment 5 | 37.1 | 549 |
| Embodiment 6 | 23.5 | 290 |
| Embodiment 7 | 23.7 | 310 |
The test result of embodiment 2,3 is basically identical with embodiment 4,5.
Above-mentioned test result indicate that, the Biodegradable material that the present invention provides is possible not only to biodegradation, and has outstanding
Hot strength and elongation at break, overcome the deficiencies in the prior art.This technique effect and pentaerythritol ester and sulfydryl in raw material
The weight ratio of ethanol is relevant, and when the weight ratio of pentaerythritol ester and mercaptoethanol is 5～7:1, effect is outstanding.
May be used for preparing degradable plastic product, health environment-friendly.
The effect of above-described embodiment indicates that the essentiality content of the present invention, but does not limit protection scope of the present invention with this.
It will be understood by those within the art that, technical scheme can be modified or equivalent, and not take off
Essence and protection domain from technical solution of the present invention.
Claims (6)
1. a Biodegradable material, it is characterised in that be prepared from by the raw material of following weight portion: Faba bean starch, 25～35
Part；Soybean starch, 10～20 parts；Polylactic acid, 6～8 parts；Triethanolamine, 1～3 part；Diethylene glycol, 2～4 parts；N-butyl alcohol,
0.6～0.8 part；Magnesium stearate, 2～4 parts；Ten dihydroxystearic acids, 1～3 part；Blown castor oil, 3～5 parts；Tetramethylolmethane
Ester and mercaptoethanol totally 6～8 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 5～7:1.
Biodegradable material the most according to claim 1, it is characterised in that by the raw material preparation of following weight portion
Become: Faba bean starch, 30 parts；Soybean starch, 15 parts；Polylactic acid, 7 parts；Triethanolamine, 2 parts；Diethylene glycol, 3 parts；
N-butyl alcohol, 0.7 part；Magnesium stearate, 3 parts；Ten dihydroxystearic acids, 2 parts；Blown castor oil, 4 parts；Pentaerythritol ester
With mercaptoethanol totally 7 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 6:1.
Biodegradable material the most according to claim 1, it is characterised in that by the raw material preparation of following weight portion
Become: Faba bean starch, 25 parts；Soybean starch, 10 parts；Polylactic acid, 6 parts；Triethanolamine, 1 part；Diethylene glycol, 2 parts；
N-butyl alcohol, 0.6 part；Magnesium stearate, 2 parts；Ten dihydroxystearic acids, 1 part；Blown castor oil, 3 parts；Pentaerythritol ester
With mercaptoethanol totally 6 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 5:1.
Biodegradable material the most according to claim 1, it is characterised in that by the raw material preparation of following weight portion
Become: Faba bean starch, 35 parts；Soybean starch, 20 parts；Polylactic acid, 8 parts；Triethanolamine, 3 parts；Diethylene glycol, 4 parts；
N-butyl alcohol, 0.8 part；Magnesium stearate, 4 parts；Ten dihydroxystearic acids, 3 parts；Blown castor oil, 5 parts；Pentaerythritol ester
With mercaptoethanol totally 8 parts, the weight ratio of pentaerythritol ester and mercaptoethanol is 7:1.
5. the preparation method of the arbitrary described Biodegradable material of Claims 1 to 4, it is characterised in that comprise the steps:
Step S1, puts into Faba bean starch, soybean starch, polylactic acid and magnesium stearate in blender and stirs, and mixing speed is
200～300 revs/min, mixing time is 20～30min；
Step S2, then in blender put into triethanolamine, diethylene glycol, n-butyl alcohol, ten dihydroxystearic acids, blown castor oil,
Pentaerythritol ester and mercaptoethanol continue stirring, and mixing speed is 200～300 revs/min, and mixing time is 25～35min；
Step S3, carries out twin-screw extruder pelletize to step S2 gained mixing raw material, and the draw ratio of twin (double) screw extruder is
35:1～45:1, twin-screw extruder is divided into four zone temperatures, and the first zone temperatures is 80～90 DEG C, and the second zone temperatures is
105～115 DEG C, the 3rd zone temperatures is 115～125 DEG C, and the 4th zone temperatures is 125～135 DEG C, carries out pelletizing process after extruding.
6. Claims 1 to 4 arbitrary described Biodegradable material application in preparing plastic.
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| CN109181010A (en) * | 2018-07-18 | 2019-01-11 | 苏州洛特兰新材料科技有限公司 | A kind of preparation method of starch-based degrading new material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181010A (en) * | 2018-07-18 | 2019-01-11 | 苏州洛特兰新材料科技有限公司 | A kind of preparation method of starch-based degrading new material |
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