CN110591203A - Degradable polyethylene film with efficient ink printing and preparation method thereof - Google Patents
Degradable polyethylene film with efficient ink printing and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a degradable polyethylene film with high-efficiency ink printing and a preparation method thereof, wherein the film is prepared from the following raw materials in parts by weight: 500-560 parts of polyethylene, 120-140 parts of ethylene-vinyl alcohol copolymer, 25-36 parts of isobutylene-maleic anhydride copolymer, 180-210 parts of polylactic acid, 85-97 parts of polyethylene glycol-polylactic acid, 30-36 parts of glycerol and 17-23 parts of stabilizer; the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: (1.28-1.36); the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer; the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is (19-22): 13: (9-11). The film has high-efficiency ink printing effect; the degradation speed is high, and the environment is protected; higher tensile strength, larger elongation at break and better mechanical property.
Description
Technical Field
The invention relates to the field of polyethylene film products, in particular to a degradable polyethylene film with high-efficiency ink printing and a preparation method thereof.
Background
The plastic film has wide application in the field of packaging, and can be used for food packaging, electric appliance product packaging, daily necessities packaging and clothing packaging. The appearance of the packaging materials with convenient use and low price brings great convenience to the life of people, but on the other hand, the packaging materials cause white pollution after being used, thus forming environmental hazard. Among them, Polyethylene (PE) is the most important plastic material, and its products are widely used in the fields of agricultural mulching films and packaging materials. However, the pollution problem to the environment is also highlighted.
The modified polyethylene product has wide application market in the field of packaging materials. However, there are many technical problems to be solved. For example, inorganic fillers are added to improve the photosensitivity of polyethylene, thereby promoting the rapid breaking of macromolecular chains to achieve the purpose of degradation, but the mechanical properties and transparency of polyethylene are caused to a certain extent; direct mechanical blending will result in a lack of adhesion between the two phases of the separation system. The chinese patent CN1785759A is formed by compounding synthetic paper and polyethylene film with adhesive, which enhances the mechanical properties of the polyethylene composite film to a certain extent, however, the manufacturing process is complex, and the degradation performance of the product is not good. U.S. Pat. No. 4,4133784 uses an ethylene-acrylic acid copolymer blended with starch to modify polyethylene, but the modification results in a decrease in the physical properties of the film due to the excessive amount of the modifying material.
Therefore, it is of great practical significance to modify polyethylene into a degradable material to reduce the load on the environment.
In addition, since the packaged object is identified, it is necessary to print a plastic film on which various information is printed for people to obtain. However, most of the polyolefin plastic films (e.g., polyethylene films) are nonpolar polymers, which have low surface tension, and the conventional inks or adhesives cannot be firmly adhered and are easily abraded off, so that they need to be surface-treated. At present, the most widely used method is to perform corona treatment on a plastic film, in general, a high-frequency and high-voltage power supply is applied between a metal electrode and a corona treater to generate discharge, so that air is ionized to form a large amount of ozone, and meanwhile, high-energy electric sparks impact the surface of the plastic film to activate the surface of the plastic film under the combined action of the high-frequency and high-voltage power supply and thus improve the surface tension. The surface tension of the corona treated polyolefin film can be increased to 38 dynes/cm, and although theoretically bonding with the ink is possible, the surface tension is not significantly increased at all times, and the adhesion cannot guarantee tight bonding of the ink. In addition to this, the corona method has the following disadvantages:
firstly, because the surface tension of the plastic film subjected to corona treatment is related to factors such as the voltage applied to the electrode, the distance between the electrode and the corona treatment roller and the like, air is prevented from being clamped between the plastic film and the corona treatment roller, the whole set of corona device is complex, the cost is high, and the corona treatment is troublesome, for example, the plastic film corona device disclosed by the utility model with the application number of 201320071027.0 has many treatment flows, and is not convenient for the rapid production of the film;
secondly, corona treatment has a problem of aging, particularly in summer with high temperature and high humidity, the surface tension of the plastic film after corona treatment is seriously attenuated, the plastic film is placed for a long time after treatment, the surface tension is gradually reduced, and even because the surface tension of a printing surface and a non-printing surface tends to be the same, the printing ink is easily adhered to the non-printing surface of the printed film surface roll, and the anti-adhesion phenomenon is caused.
Therefore, it is necessary to modify the existing polyethylene film with a modification other than corona treatment in order to obtain a high-efficiency ink printing effect.
Disclosure of Invention
In view of the above circumstances, an object of the present invention is to provide a degradable polyethylene film having high printing efficiency and a method for preparing the same, which can effectively solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
500-560 parts of polyethylene,
120-140 parts of ethylene-vinyl alcohol copolymer,
25-36 parts of isobutylene-maleic anhydride copolymer,
180-210 parts of polylactic acid,
85-97 parts of polyethylene glycol-polylactic acid,
Although polylactic acid has good degradability, the addition of polylactic acid easily causes a large amount of polylactic acid to be gathered on the surface of the prepared degradable polyethylene film with high-efficiency ink printing of the invention, and the printing ink on the surface is easy to fall off (drop) after printing, so that the inventor finds through a large number of experiments that: the addition of the polyethylene glycol-polylactic acid and the matching of the polylactic acid can not only improve the good degradability, but also provide good ink printing effect because hydroxyl in the polyethylene glycol-polylactic acid is gathered on the surface of the prepared degradable polyethylene film with high-efficiency ink printing, and the surface condition can hardly change along with the change of time after printing, and the adhesion with the ink is kept good.
30-36 parts of glycerol,
17-23 parts of a stabilizer;
wherein the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: (1.28-1.36);
the medium-density polyethylene and the high-density polyethylene are mixed according to a proper proportion and used as the most main matrix material of the high-efficiency printing ink degradable polyethylene film, so that the prepared high-efficiency printing ink degradable polyethylene film with high ink printing performance has good mechanical properties, and meanwhile, the processing performance, and the dispersibility and compatibility of the mixture with other components are improved.
Wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, and the copolymerization ratio of isobutylene to maleic anhydride is 1: (0.46-0.58);
the isobutylene-maleic anhydride copolymer mainly plays a role of a compatilizer, and the isobutylene-maleic anhydride copolymer formed by the components can enable polyethylene, polylactic acid and other components to be well compatible, so that the prepared degradable polyethylene film with high-efficiency ink printing is uniform, stable and good in mechanical property; meanwhile, the polarity of the degradable polyethylene film printed by the high-efficiency ink can be increased, the surface tension is improved, and the adhesive force between the surface of the polyethylene film and the ink is further improved.
Wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer;
the ethylene-vinyl alcohol copolymer has good compatibility with polyethylene and partially similar properties, can provide a large amount of hydroxyl groups, obviously improves the surface polarity (high surface energy) of the prepared degradable polyethylene film with high-efficiency ink printing, can obviously improve the adhesive force between the surface of the polyethylene film and the ink, and obtains the high-efficiency ink printing effect.
The stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is (19-22): 13: (9-11).
The stabilizer with the composition has good stabilizing effect, prevents the macromolecular chains from being damaged in the processing (mixing and the like) process and influences the comprehensive performance of the prepared degradable polyethylene film with high-efficiency ink printing; and the degradable polyethylene film has strong binding force with other components and is not easy to seep out to the surface, so that the printing ink on the surface is not easy to fall off (drop) after the degradable polyethylene film with high-efficiency ink printing is printed.
The degradable polyethylene film with high-efficiency ink printing is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer in proper proportion, so that the advantages of the polyethylene film, the ethylene-vinyl alcohol copolymer, the isobutylene-maleic anhydride copolymer, the polylactic acid, the polyethylene glycol-polylactic acid, the glycerol and the stabilizer are fully exerted, mutually supplemented and mutually promoted, and the prepared degradable polyethylene film with high-efficiency ink printing has the degradable polyethylene film with high-efficiency ink printing and has the high-efficiency ink printing effect; the degradation speed is high, and the environment is protected; high tensile strength, large elongation at break and good mechanical property.
Preferably, the degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
530 parts of polyethylene,
133 parts of ethylene-vinyl alcohol copolymer,
32 parts of isobutylene-maleic anhydride copolymer,
195 parts of polylactic acid,
91 parts of polyethylene glycol-polylactic acid,
33 portions of glycerol,
And 20 parts of a stabilizer.
Preferably, the polyethylene comprises medium density polyethylene and high density polyethylene, and the mass ratio of the medium density polyethylene to the high density polyethylene is 1: 1.32.
preferably, the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer in which the copolymerization ratio of isobutylene and maleic anhydride is 1: 0.54.
preferably, the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer.
Preferably, the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is 21: 13: 10.
the invention also provides a preparation method of the degradable polyethylene film with high-efficiency ink printing, which comprises the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. mixing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 20-25 min at 185-195 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 65-85 min at 175-185 ℃;
D. discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the degradable polyethylene film with high-efficiency ink printing is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer in proper proportion, so that the respective advantages are fully exerted, and the polyethylene film with high-efficiency ink printing degradable polyethylene film has high-efficiency ink printing effect; the degradation speed is high, and the environment is protected; high tensile strength, large elongation at break and good mechanical property.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
a degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
500-560 parts of polyethylene,
120-140 parts of ethylene-vinyl alcohol copolymer,
25-36 parts of isobutylene-maleic anhydride copolymer,
180-210 parts of polylactic acid,
85-97 parts of polyethylene glycol-polylactic acid,
30-36 parts of glycerol,
17-23 parts of a stabilizer;
wherein the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: (1.28-1.36);
wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, and the copolymerization ratio of isobutylene to maleic anhydride is 1: (0.46-0.58);
wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer;
the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is (19-22): 13: (9-11).
Preferably, the degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
530 parts of polyethylene,
133 parts of ethylene-vinyl alcohol copolymer,
32 parts of isobutylene-maleic anhydride copolymer,
195 parts of polylactic acid,
91 parts of polyethylene glycol-polylactic acid,
33 portions of glycerol,
And 20 parts of a stabilizer.
Preferably, the polyethylene comprises medium density polyethylene and high density polyethylene, and the mass ratio of the medium density polyethylene to the high density polyethylene is 1: 1.32.
preferably, the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer in which the copolymerization ratio of isobutylene and maleic anhydride is 1: 0.54.
preferably, the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer.
Preferably, the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is 21: 13: 10.
the embodiment also provides a preparation method of the degradable polyethylene film with high-efficiency ink printing, which comprises the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. mixing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 20-25 min at 185-195 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 65-85 min at 175-185 ℃;
D. discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
Example 2:
a degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
500 portions of polyethylene,
120 parts of ethylene-vinyl alcohol copolymer,
25 parts of isobutylene-maleic anhydride copolymer,
180 portions of polylactic acid,
85 portions of polyethylene glycol-polylactic acid,
30 portions of glycerol,
17 parts of a stabilizer;
wherein the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: 1.28;
wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, and the copolymerization ratio of isobutylene to maleic anhydride is 1: 0.46 of;
wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer;
the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is 19: 13: 9.
in this embodiment, the preparation method of degradable polyethylene film with high efficiency ink printing comprises the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. firstly, mixing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 25min at 185 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 85min at 175 ℃;
D. discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
Example 3:
a degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
560 parts of polyethylene,
140 parts of ethylene-vinyl alcohol copolymer,
36 parts of isobutylene-maleic anhydride copolymer,
210 portions of polylactic acid,
97 portions of polyethylene glycol-polylactic acid,
36 parts of glycerol,
23 parts of a stabilizer;
wherein the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: 1.36;
wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, and the copolymerization ratio of isobutylene to maleic anhydride is 1: 0.58;
wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer;
the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is 22: 13: 11.
in this embodiment, the preparation method of degradable polyethylene film with high efficiency ink printing comprises the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. firstly, mixing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 25min at 195 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 65min at 185 ℃;
D. discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
Example 4:
a degradable polyethylene film with high-efficiency ink printing is prepared from the following raw materials in parts by weight:
530 parts of polyethylene,
133 parts of ethylene-vinyl alcohol copolymer,
32 parts of isobutylene-maleic anhydride copolymer,
195 parts of polylactic acid,
91 parts of polyethylene glycol-polylactic acid,
33 portions of glycerol,
And 20 parts of a stabilizer.
In this embodiment, the polyethylene includes medium density polyethylene and high density polyethylene, and the mass ratio of the medium density polyethylene to the high density polyethylene is 1: 1.32.
in this example, the isobutylene-maleic anhydride copolymer was an isobutylene-maleic anhydride random copolymer in which the copolymerization ratio of isobutylene and maleic anhydride was 1: 0.54.
in this example, the ethylene vinyl alcohol copolymer is an ethylene vinyl alcohol block copolymer.
In this embodiment, the stabilizer includes calcium stearate, calcium glycerophosphate, and diphenylthiourea, and the mass ratio of the three is 21: 13: 10.
in this embodiment, the preparation method of degradable polyethylene film with high efficiency ink printing comprises the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. mixing all polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 22min at 190 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 75min at 180 ℃;
D. discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
Comparative example: chinese patent application publication No. CN 105237858A.
The following performance tests were performed on the degradable polyethylene films with high efficiency ink printing obtained in examples 2 to 4 of the present invention and comparative examples, and the test results are shown in table 1:
surface tension measurement: the test was carried out according to GB/T14216-2008 "Plastic film and sheet wetting tension test method".
And (3) degradable testing: the high-efficiency ink-printed degradable polyethylene films (thickness 200 μm) obtained in examples 2 to 4 and the polyethylene films (thickness 200 μm) prepared according to the comparative examples were subjected to measurement of the induction period and the embrittlement period, respectively, wherein the induction period and the embrittlement period are expressed by the degree of decrease in elongation at break in the photooxidation evaluation method, and the exposure time when the retention of elongation at break reaches 80% of the initial value is the induction period; the exposure time at 20% is the embrittlement period. And (3) testing conditions are as follows: the test was carried out using an ultraviolet ray artificial accelerated aging test chamber (length 2.4m, width 1.2m, height 0.4m, 6 lamps installed, 40w each). The bottom is provided with a tested film for carrying out an artificial accelerated photodegradation experiment. The films were cut into uniform-sized bars (dumbbell bars 150mm in length and 10mm in narrow parallel width). The distance between the film (wherein, in the experiment of the degradable disposable plastic film obtained in the embodiment 2-4, the surface layer is opposite to the light) and the lamp tube is 20cm, the film is distributed in an effective light area of 45cm from the center to the two sides of the film frame, and the temperature in the box is (35 +/-3) DEG C.
The tensile strength and the elongation at break are tested by adopting GBT13022-1991 standard; the drawing speed was 200mm/min at room temperature 25 ℃.
TABLE 1
As can be seen from the above table, the degradable polyethylene film with high-efficiency ink printing of the invention has the following advantages: 1. the surface tension is far better than the surface tension requirement required by printing ink and is obviously better than that of a comparative example; 2. the degradation speed is high, and the environment is protected; 3. higher tensile strength, larger elongation at break and better mechanical property.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (7)
1. The degradable polyethylene film with high-efficiency ink printing is characterized by being prepared from the following raw materials in parts by weight:
500-560 parts of polyethylene,
120-140 parts of ethylene-vinyl alcohol copolymer,
25-36 parts of isobutylene-maleic anhydride copolymer,
180-210 parts of polylactic acid,
85-97 parts of polyethylene glycol-polylactic acid,
30-36 parts of glycerol,
17-23 parts of a stabilizer;
wherein the polyethylene comprises medium-density polyethylene and high-density polyethylene, and the mass ratio of the medium-density polyethylene to the high-density polyethylene is 1: (1.28-1.36);
wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, and the copolymerization ratio of isobutylene to maleic anhydride is 1: (0.46-0.58);
wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer;
the stabilizer comprises calcium stearate, calcium glycerophosphate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerophosphate to the diphenylthiourea is (19-22): 13: (9-11).
2. The degradable polyethylene film with high efficiency ink printing according to claim 1 is prepared from the following raw materials in parts by weight:
530 parts of polyethylene,
133 parts of ethylene-vinyl alcohol copolymer,
32 parts of isobutylene-maleic anhydride copolymer,
195 parts of polylactic acid,
91 parts of polyethylene glycol-polylactic acid,
33 portions of glycerol,
And 20 parts of a stabilizer.
3. The degradable polyethylene film with high efficiency ink printing according to claim 1, wherein the polyethylene comprises medium density polyethylene and high density polyethylene, and the mass ratio of the medium density polyethylene to the high density polyethylene is 1: 1.32.
4. the degradable polyethylene film with high efficiency ink printing according to claim 1, wherein the isobutylene-maleic anhydride copolymer is an isobutylene-maleic anhydride random copolymer, wherein the copolymerization ratio of isobutylene and maleic anhydride is 1: 0.54.
5. the degradable polyethylene film with high efficiency ink printing according to claim 1, wherein the ethylene-vinyl alcohol copolymer is an ethylene-vinyl alcohol block copolymer.
6. The degradable polyethylene film with high efficiency ink printing according to claim 1, wherein the stabilizer comprises calcium stearate, calcium glycerolate and diphenylthiourea, and the mass ratio of the calcium stearate to the calcium glycerolate to the diphenylthiourea is 21: 13: 10.
7. a method for preparing degradable polyethylene film with high efficiency ink printing according to any one of claims 1 to 6, characterized by comprising the following steps:
A. respectively weighing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer, polylactic acid, polyethylene glycol-polylactic acid, glycerol and stabilizer according to the weight parts;
B. mixing polyethylene, ethylene-vinyl alcohol copolymer, isobutylene-maleic anhydride copolymer and 2/3 stabilizer, feeding into an internal mixer, and mixing for 20-25 min at 185-195 ℃;
C. then adding stabilizer of polylactic acid, polyethylene glycol-polylactic acid, glycerol and 1/3, and continuously mixing for 65-85 min at 175-185 ℃;
discharging, and preparing the degradable polyethylene film printed by the high-efficiency ink by adopting a tape casting method.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572148A (en) * | 2020-05-07 | 2020-08-25 | 合肥佛斯德新材料科技有限公司 | BOPP/PE film suitable for double-sided printing and processing method thereof |
| CN113512218A (en) * | 2021-08-09 | 2021-10-19 | 茂名联塑建材有限公司 | High-surface-tension PE film and preparation method and application thereof |
| CN113602021A (en) * | 2021-08-04 | 2021-11-05 | 宁波卓越印务有限公司 | Printing film and preparation method thereof |
| CN113621267A (en) * | 2021-08-31 | 2021-11-09 | 东莞市彩工坊新材料有限公司 | Degradable UV (ultraviolet) ink and preparation method thereof |
| CN115651300A (en) * | 2022-11-07 | 2023-01-31 | 安徽昊源化工集团有限公司 | Production process of degradable plastic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174222A (en) * | 2011-01-31 | 2011-09-07 | 开原市升达塑料彩印厂 | Degradable plastic film and production method thereof |
| CN105237858A (en) * | 2015-11-16 | 2016-01-13 | 朱丽芬 | Polyethylene film with efficient printing effect |
| CN106117771A (en) * | 2016-07-21 | 2016-11-16 | 合肥市智源包装科技有限公司 | A kind of toothpaste sheet material apparatus polyethylene coating materials having efficient printing effect and preparation method thereof |
| CN109517245A (en) * | 2018-10-11 | 2019-03-26 | 福建鸿利印刷材料工贸有限公司 | A kind of degradable composite package film and preparation method thereof |
-
2019
- 2019-09-24 CN CN201910906889.2A patent/CN110591203A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174222A (en) * | 2011-01-31 | 2011-09-07 | 开原市升达塑料彩印厂 | Degradable plastic film and production method thereof |
| CN105237858A (en) * | 2015-11-16 | 2016-01-13 | 朱丽芬 | Polyethylene film with efficient printing effect |
| CN106117771A (en) * | 2016-07-21 | 2016-11-16 | 合肥市智源包装科技有限公司 | A kind of toothpaste sheet material apparatus polyethylene coating materials having efficient printing effect and preparation method thereof |
| CN109517245A (en) * | 2018-10-11 | 2019-03-26 | 福建鸿利印刷材料工贸有限公司 | A kind of degradable composite package film and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572148A (en) * | 2020-05-07 | 2020-08-25 | 合肥佛斯德新材料科技有限公司 | BOPP/PE film suitable for double-sided printing and processing method thereof |
| CN113602021A (en) * | 2021-08-04 | 2021-11-05 | 宁波卓越印务有限公司 | Printing film and preparation method thereof |
| CN113512218A (en) * | 2021-08-09 | 2021-10-19 | 茂名联塑建材有限公司 | High-surface-tension PE film and preparation method and application thereof |
| CN113621267A (en) * | 2021-08-31 | 2021-11-09 | 东莞市彩工坊新材料有限公司 | Degradable UV (ultraviolet) ink and preparation method thereof |
| CN113621267B (en) * | 2021-08-31 | 2023-03-03 | 东莞市彩工坊新材料有限公司 | Degradable UV (ultraviolet) ink and preparation method thereof |
| CN115651300A (en) * | 2022-11-07 | 2023-01-31 | 安徽昊源化工集团有限公司 | Production process of degradable plastic |
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