CN114457458A - Completely biodegradable dust screen and preparation method thereof - Google Patents
Completely biodegradable dust screen and preparation method thereof Download PDFInfo
- Publication number
- CN114457458A CN114457458A CN202210152904.0A CN202210152904A CN114457458A CN 114457458 A CN114457458 A CN 114457458A CN 202210152904 A CN202210152904 A CN 202210152904A CN 114457458 A CN114457458 A CN 114457458A
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- dust screen
- calcium carbonate
- completely biodegradable
- carbonate powder
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
- D10B2331/041—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET] derived from hydroxy-carboxylic acids, e.g. lactones
Abstract
The invention discloses a completely biodegradable dust screen and a preparation method thereof, wherein the dust screen is prepared from the following components in parts by weight: 3-10 parts of starch-based PLA, 60-65 parts of bio-based PBAT, 20-35 parts of calcium carbonate powder and 3-5 parts of diacetyl epoxy vegetable oil acid glyceride. Compared with the traditional plastic dust screen, the dust screen has excellent mechanical property, water resistance and heat resistance, and can be completely biodegraded to realize zero pollution.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a completely biodegradable dust screen and a preparation method thereof.
Background
Traditional plastics class dust screen mainly adopts non-degradable resin to make, like PP, PE, PVC etc. when outdoor when the earthwork construction site uses, through the destruction of adverse circumstances such as sunshine, ultraviolet ray, high temperature, high humidity, will morals and manners soon and become the piece, then become the plastic particle and permeate and cause the pollution in the soil, and after construction cycle, the dust screen is often directly abandoned to used repeatedly not, a large amount of white rubbish will seriously pollute the environment.
Disclosure of Invention
In order to solve the problems, the invention provides a completely biodegradable dust screen and a preparation method thereof.
The invention adopts the following technical scheme:
a completely biodegradable dust screen is prepared from the following components in parts by weight: starch-based PLA3-10 parts, bio-based PBAT 60-65 parts, calcium carbonate powder 20-35 parts, and diacetyl epoxy vegetable oil acid glyceride 3-5 parts.
Further, the particle size of the calcium carbonate powder is 2500-3500 meshes.
A preparation method of a completely biodegradable dust screen comprises the following steps:
s1, adding starch-based PLA, bio-based PBAT, calcium carbonate powder and diacetyl epoxy vegetable oil acid glyceride into a high-speed mixer in parts by weight, and mixing for 3min at the rotating speed of 200 r/min;
s2, discharging the uniformly mixed materials, adding the materials into a double-screw extruder, extruding, bracing and cooling to obtain the modified high-content special resin particles for calcium carbonate;
s3, adding the modified high-content special resin particles for calcium carbonate into a film blowing machine set, and performing extrusion, inflation, traction, secondary traction, tearing and wire drawing and rolling to obtain biodegradable plastic flat filaments;
s4, distributing the biodegradable plastic flat wires on a warp knitting machine, and knitting the flat wires into the dust screen with the required style.
Further, the twin-screw extruder described in step S2 had a barrel temperature of 170 ℃, a die temperature of 175 ℃, and a screw length-to-diameter ratio of 52: 1.
After adopting the technical scheme, compared with the background technology, the invention has the following advantages:
1. the dust screen is prepared by taking starch-based PLA (polylactic acid), bio-based PBAT (copolymer of butylene adipate and butylene terephthalate), mineral calcium carbonate powder and diacetyl epoxy vegetable oleic acid glyceride as raw materials through multi-component composite modification, and finally generating carbon dioxide, methane, water and mineralized inorganic substances containing elements through the degradation of microorganisms existing in the nature under the conditions of nature such as soil, sandy soil and the like or in specific chemical reaction conditions such as composting, anaerobic digestion and aqueous culture solution, thereby realizing 100 percent biodegradation and composting without polluting the environment;
2. compared with the traditional plastic dust screen, the dust screen saves more than 30% of petrochemical resources, reduces 80% of carbon dioxide emission, does not contain phthalate and bisphenol A, is nontoxic and pollution-free, can be directly buried in soil after being used, is converted into water and carbon dioxide, is neutralized with the soil, and greatly reduces white pollution;
3. the dust screen of the invention has the characteristic of complete biodegradation, and also has excellent mechanical property, water resistance and heat resistance.
Drawings
FIG. 1 is a flow chart of a method for manufacturing a dust screen according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in figure 1, the dust screen capable of being completely biodegraded and the preparation method thereof are disclosed, and the dust screen is prepared from the following components in parts by weight: 8 parts of starch-based PLA, 62 parts of bio-based PBAT, 25 parts of calcium carbonate powder and 5 parts of diacetyl epoxy vegetable olein. The particle size of the calcium carbonate powder is 3000 meshes.
The preparation method of the dust screen comprises the following steps:
s1, adding starch-based PLA, bio-based PBAT, calcium carbonate powder and diacetyl epoxy vegetable oil acid glyceride into a high-speed mixer in parts by weight, and mixing for 3min at the rotating speed of 200 r/min;
s2, discharging the uniformly mixed materials, adding the materials into a double-screw extruder, extruding, bracing and cooling to obtain the modified high-content special resin particles for calcium carbonate;
s3, adding the modified high-content special resin particles for calcium carbonate into a film blowing machine set, and performing extrusion, inflation, traction, secondary traction, tearing and wire drawing and rolling to obtain biodegradable plastic flat filaments;
in step S2, the barrel temperature of the twin-screw extruder was 170 ℃, the die temperature was 175 ℃, and the screw length-diameter ratio was 52: 1.
S4, distributing the biodegradable plastic flat wires on a warp knitting machine, and knitting the flat wires into the dust screen with the required style.
The dust screens manufactured in this example were subjected to performance tests, and the results are shown in table 1 below.
TABLE 1 dust screen Performance test results
From the above table 1, it can be seen that the dust-proof screen prepared in this embodiment meets the test standard of ASTM, has good mechanical properties and thermal properties, can replace the traditional plastic dust-proof screen to realize the dust-proof function, has a biodegradation rate of 100% after 12 weeks, and can be completely degraded without pollution.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a dust screen that can completely biodegradable which characterized in that: the composition is prepared from the following components in parts by weight: 3-10 parts of starch-based PLA, 60-65 parts of bio-based PBAT, 20-35 parts of calcium carbonate powder and 3-5 parts of diacetyl epoxy vegetable oil acid glyceride.
2. A completely biodegradable dust screen according to claim 1, characterized in that: the particle size of the calcium carbonate powder is 2500-3500 meshes.
3. A method for preparing a completely biodegradable dust screen according to any one of claims 1-2, wherein: the method comprises the following steps:
s1, adding starch-based PLA, bio-based PBAT, calcium carbonate powder and diacetyl epoxy vegetable oil acid glyceride into a high-speed mixer in parts by weight, and mixing at the rotating speed of 200r/min for 3 min;
s2, discharging the uniformly mixed materials, adding the materials into a double-screw extruder, extruding, bracing and cooling to obtain the special modified high-content calcium carbonate resin particles;
s3, adding the special modified resin particles with high calcium carbonate content into a film blowing machine set, and performing extrusion, inflation, traction, secondary traction, tearing and wire drawing and rolling to obtain biodegradable plastic flat filaments;
s4, distributing the biodegradable plastic flat wires on a warp knitting machine, and knitting the flat wires into the dust screen with the required style.
4. A method for preparing a completely biodegradable dust screen according to claim 3, wherein the method comprises the following steps: in step S2, the barrel temperature of the twin-screw extruder was 170 ℃, the die temperature was 175 ℃, and the screw length-diameter ratio was 52: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210152904.0A CN114457458A (en) | 2022-02-18 | 2022-02-18 | Completely biodegradable dust screen and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210152904.0A CN114457458A (en) | 2022-02-18 | 2022-02-18 | Completely biodegradable dust screen and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114457458A true CN114457458A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210152904.0A Pending CN114457458A (en) | 2022-02-18 | 2022-02-18 | Completely biodegradable dust screen and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082086A (en) * | 2018-07-12 | 2018-12-25 | 安徽聚美生物科技有限公司 | A kind of preparation method of the high ventilated membrane of polylactic acid |
| CN109810476A (en) * | 2017-11-20 | 2019-05-28 | 武汉华丽生物股份有限公司 | Fully biodegradable film bag material and film bag preparation method |
| CN111114077A (en) * | 2019-12-27 | 2020-05-08 | 周锐 | Full-biodegradable bubble film and preparation process thereof |
| CN113278266A (en) * | 2021-07-07 | 2021-08-20 | 西安聚能塑胶有限公司 | Bio-based degradable synthetic material for plastic weaving production and preparation method thereof |
| CN113801350A (en) * | 2021-10-19 | 2021-12-17 | 上海复命新材料科技有限公司 | Calcium carbonate filled PBAT/PLA biodegradable plastic film and preparation method thereof |
-
2022
- 2022-02-18 CN CN202210152904.0A patent/CN114457458A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810476A (en) * | 2017-11-20 | 2019-05-28 | 武汉华丽生物股份有限公司 | Fully biodegradable film bag material and film bag preparation method |
| CN109082086A (en) * | 2018-07-12 | 2018-12-25 | 安徽聚美生物科技有限公司 | A kind of preparation method of the high ventilated membrane of polylactic acid |
| CN111114077A (en) * | 2019-12-27 | 2020-05-08 | 周锐 | Full-biodegradable bubble film and preparation process thereof |
| CN113278266A (en) * | 2021-07-07 | 2021-08-20 | 西安聚能塑胶有限公司 | Bio-based degradable synthetic material for plastic weaving production and preparation method thereof |
| CN113801350A (en) * | 2021-10-19 | 2021-12-17 | 上海复命新材料科技有限公司 | Calcium carbonate filled PBAT/PLA biodegradable plastic film and preparation method thereof |
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