CN110804217A - High-filling starch masterbatch and preparation method thereof - Google Patents
High-filling starch masterbatch and preparation method thereof Download PDFInfo
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- CN110804217A CN110804217A CN201911261435.0A CN201911261435A CN110804217A CN 110804217 A CN110804217 A CN 110804217A CN 201911261435 A CN201911261435 A CN 201911261435A CN 110804217 A CN110804217 A CN 110804217A
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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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Abstract
The invention discloses a high-filling starch master batch and a preparation method thereof. The starch master batch can be widely applied to filling of matrix resin of the same kind, is suitable for various molding processes such as extrusion, injection molding, film blowing, blow molding and the like, has lower material cost compared with pure matrix resin, can effectively reduce the cost of the composite material, and can simultaneously improve the biological carbon content of the composite material and reduce the carbon footprint of a product.
Description
Technical Field
The invention relates to the technical field of composite materials, and particularly relates to a high-filling starch masterbatch and a preparation method thereof.
Background
Starch is a renewable recyclable green material from natural plants, can be used as grain for human use, and is widely applied to the fields of chemical industry and new materials for preparing various composite materials. Due to the excellent biodegradability, starch is generally used as filling to prepare thermoplastic high-biochar-content bio-based composite materials, is widely applied to disposable products, and is more and more valued by people in the large environment that petrochemical resources are increasingly in shortage and white pollution is increasingly serious at present. On one hand, the starch can be prepared into thermoplastic starch through chemical modification, and then the thermoplastic starch is mixed with the traditional plastic material in a master batch mode to produce a plastic product. If starch can be filled into the traditional thermoplastic plastics in a high proportion, the composite material can obtain better processing performance under the action of the plasticizer and the lubricant, and the starch composite material master batch with the high filling proportion can be blended with the traditional plastic material to produce products. In addition, the processing technology does not involve chemical modification of direct starch, and the prepared thermoplastic starch master batch has high cost performance and also has better physical and mechanical properties.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-filling starch masterbatch and a preparation method thereof aiming at the defect of application of starch in plastics.
The purpose of the invention is realized by the following technical scheme:
the high-filling starch master batch comprises, by weight, 50-70 parts of starch, 20-35 parts of polyolefin, 2-10 parts of a compatilizer, 1-8 parts of a lubricant and 0.2-1 part of an antioxidant.
Preferably, the raw materials comprise 60 parts of starch, 30 parts of polyolefin, 5 parts of compatilizer, 5 parts of lubricant and 0.5 part of antioxidant.
Further, the starch is one or more of corn starch, tapioca starch, wheat starch and potato starch.
Further, the water content of the starch is 5-7%.
Further, the polyolefin is at least one of polyethylene and polypropylene.
Further, the compatilizer is at least one of EVA, EBA and maleic anhydride grafted polyethylene wax.
Further, the lubricant is at least one of EBS wax, polyethylene wax, calcium stearate and zinc stearate.
Further, the antioxidant is one or two of 1010 and 168.
The preparation method of the high-filling starch masterbatch comprises the following steps: mixing starch, plasticizer, lubricant and antioxidant at high speed according to a certain proportion until the temperature of the materials reaches 70-100 ℃, then placing the materials into a cold mixing cylinder to reduce the temperature to below 40 ℃, and extruding and granulating the cooled mixture to obtain the high-filling starch master batch.
Compared with the prior art, the beneficial effects are:
the invention adopts unmodified raw starch as a main raw material, and the composite material is plasticized and lubricated by comprehensively utilizing the efficient plasticizer and the lubricant to prepare the high-filling starch composite material master batch with uniform particles and smooth surface. The master batch can be widely applied to filling of matrix resin of the same kind, is suitable for various molding processes such as extrusion, injection molding, film blowing, blow molding and the like, has lower material cost compared with pure matrix resin, can effectively reduce the cost of the composite material, and can simultaneously improve the biological carbon content of the composite material and reduce the carbon footprint of a final product.
Detailed Description
The following examples are further explained and illustrated, but the present invention is not limited in any way by the specific examples. Unless otherwise indicated, the methods and equipment used in the examples are conventional in the art and all materials used are conventional commercially available materials.
Example 1
The embodiment provides a preparation method of starch masterbatch.
60 parts of corn starch, 34 parts of polypropylene, 1.5 parts of EVA (ethylene vinyl acetate), 1.5 parts of EBA (ethylene-butadiene-styrene), 2 parts of EBS (ethylene-butadiene-styrene) wax, 2.5 parts of polyethylene wax, 10100.2 parts of antioxidant and 1680.2 parts of antioxidant are placed in a high-speed mixer to be mixed at high speed until the temperature of the materials reaches 70-100 ℃, then the materials are placed in a cold mixing cylinder to be cooled to below 40 ℃, and the cooled mixture is extruded and granulated to obtain the high-filling starch master batch. Performing performance detection on the prepared starch master batch to obtain the high-filling starch master batch with the melt index of 10.5 g/10min, the tensile strength of 14.6MPa, the elongation at break of 38 percent and the impact strength of 7.2kJ/m2。
Example 2
The embodiment provides a preparation method of starch masterbatch.
60 parts of wheat starch, 32 parts of polypropylene, 2 parts of EVA (ethylene vinyl acetate), 2.5 parts of EBA (ethylene-butylene-styrene copolymer), 2.5 parts of EBS (ethylene-butylene-styrene copolymer) wax, 2.0 parts of maleic anhydride grafted polyethylene wax, 10100.2 parts of antioxidant and 1680.2 parts of antioxidant are placed in a high-speed mixer to be mixed at a high speed until the temperature of the materials reaches 70-100 ℃, then the materials are placed in a cold mixing cylinder to be cooled to below 40 ℃, and the cooled mixture is extruded and granulated to obtain the high-filling starch master batch. Performing performance detection on the prepared starch master batch to obtain the high-filling starch master batch with the melt index of 12g/10min, the tensile strength of 13.4MPa, the elongation at break of 47 percent and the impact strength of 8.2kJ/m2。
Example 3
The embodiment provides a preparation method of starch masterbatch.
50 parts of wheat starch, 20 parts of polypropylene, 1 part of EVA (ethylene vinyl acetate), 1.5 parts of EBA (ethylene-butylene-styrene copolymer), 1 part of EBS (ethylene-butylene-styrene copolymer) wax, 1.0 part of maleic anhydride grafted polyethylene wax, 10100.1 parts of antioxidant and 1680.1 parts of antioxidant are placed in a high-speed mixer to be mixed at a high speed until the temperature of the materials reaches 70-100 ℃, then the materials are placed in a cold mixing cylinder to be cooled to below 40 ℃, and the cooled mixture is extruded and granulated to obtain the high-filling starch masterbatch. Performing performance detection on the prepared starch master batch to obtain the high-filling starch master batch with the melt index of 10 g/10min, the tensile strength of 10.8MPa, the elongation at break of 39 percent and the impact strength of 7.5kJ/m2。
Example 4
The embodiment provides a preparation method of starch masterbatch.
70 parts of wheat starch, 35 parts of polypropylene, 5 parts of EVA (ethylene vinyl acetate), 4 parts of EBA (ethylene-butylene-styrene copolymer), 3 parts of EBS (ethylene-butylene-styrene copolymer) wax, 5 parts of maleic anhydride grafted polyethylene wax, 10100.5 parts of antioxidant and 1680.5 part of antioxidant are placed in a high-speed mixer to be mixed at a high speed until the temperature of the materials reaches 70-100 ℃, then the materials are placed in a cold mixing cylinder to be cooled to below 40 ℃, and the cooled mixture is extruded and granulated to obtain the high-filling starch master batch. Performing performance detection on the prepared starch master batch to obtain the high-filling starch master batch with the melt index of 13 g/10min, the tensile strength of 13.4MPa, the elongation at break of 45 percent and the impact strength of 8.6kJ/m2。
The prepared starch master batch is mixed with polyethylene, the filling amount is 5%, 10%, 15% and 20%, compared with pure polyethylene, the performance of the polyethylene filled with the starch master batch is similar to the tensile property of the pure polyethylene in the case of filling 5%, 10% and 15%, and the performance of the polyethylene filled with the starch master batch is obviously inferior to that of the pure polyethylene.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The high-filling starch masterbatch is characterized by comprising, by weight, 50-70 parts of starch, 20-35 parts of polyolefin, 2-10 parts of a compatilizer, 1-8 parts of a lubricant and 0.2-1 part of an antioxidant.
2. The highly filled starch masterbatch according to claim 1, wherein the raw materials comprise, by weight, 60 parts of starch, 30 parts of polyolefin, 5 parts of compatibilizer, 5 parts of lubricant, and 0.5 part of antioxidant.
3. The highly filled starch concentrate of claim 1 or 2, wherein the starch is one or more of corn starch, tapioca starch, wheat starch and potato starch.
4. The highly filled starch masterbatch according to claim 1 or 2, wherein the starch has a moisture content of 5-7%.
5. The highly filled starch concentrate of claim 1 or 2, wherein the polyolefin is at least one of polyethylene and polypropylene.
6. The highly filled starch masterbatch according to claim 1 or 2, wherein the compatibilizer is at least one of EVA, EBA, and maleic anhydride grafted polyethylene wax.
7. The highly filled starch concentrate of claim 1 or 2, wherein the lubricant is at least one of EBS wax, polyethylene wax, calcium stearate, and zinc stearate.
8. The highly filled starch concentrate of claim 1 or 2, wherein the antioxidant is one or both of 1010 and 168.
9. The highly filled starch concentrate as claimed in any one of claims 1 to 8, wherein the preparation method comprises: mixing starch, plasticizer, lubricant and antioxidant at high speed according to a certain proportion until the temperature of the materials reaches 70-100 ℃, then placing the materials into a cold mixing cylinder to reduce the temperature to below 40 ℃, and extruding and granulating the cooled mixture to obtain the high-filling starch master batch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911261435.0A CN110804217A (en) | 2019-12-10 | 2019-12-10 | High-filling starch masterbatch and preparation method thereof |
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| CN201911261435.0A CN110804217A (en) | 2019-12-10 | 2019-12-10 | High-filling starch masterbatch and preparation method thereof |
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| CN110804217A true CN110804217A (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548608A (en) * | 2020-05-25 | 2020-08-18 | 常州龙骏天纯环保科技有限公司 | Compostable and degradable bio-based film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111548608A (en) * | 2020-05-25 | 2020-08-18 | 常州龙骏天纯环保科技有限公司 | Compostable and degradable bio-based film and preparation method thereof |
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Application publication date: 20200218 |
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| RJ01 | Rejection of invention patent application after publication |