CN112812464A - Formula and preparation method of plastic cloth - Google Patents
Formula and preparation method of plastic cloth Download PDFInfo
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- CN112812464A CN112812464A CN202011635168.1A CN202011635168A CN112812464A CN 112812464 A CN112812464 A CN 112812464A CN 202011635168 A CN202011635168 A CN 202011635168A CN 112812464 A CN112812464 A CN 112812464A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 44
- 239000004033 plastic Substances 0.000 title claims abstract description 44
- 239000004744 fabric Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims description 13
- 238000009472 formulation Methods 0.000 title claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 90
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 78
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- 229920005989 resin Polymers 0.000 claims abstract description 34
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 32
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 28
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 27
- 239000003381 stabilizer Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 17
- 239000003549 soybean oil Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 38
- 239000000243 solution Substances 0.000 claims description 25
- 239000000725 suspension Substances 0.000 claims description 25
- 239000011259 mixed solution Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 49
- 229920000915 polyvinyl chloride Polymers 0.000 description 48
- 230000004580 weight loss Effects 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001266 bandaging Methods 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2427/06—Homopolymers or copolymers of vinyl chloride
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- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a plastic cloth formula which is prepared from the following raw materials in parts by weight: 40-80 parts of PVC resin powder, 15-30ml of tetrahydrofuran, 3-8g of titanium dioxide, 5-10ml of methanol, 40-70 parts of PVC elastomer resin powder, 20-30 parts of plasticizer, 1-4 parts of epoxidized soybean oil and 1-5 parts of rare earth stabilizer. The rare earth stabilizer of the invention endows PVC with excellent thermal stability in plastic processing, has stronger coordination energy between rare earth atoms and chlorine atoms on a PVC chain, can control the generation of free chlorine atoms, thereby preventing or delaying the automatic oxidation chain reaction of Ha, and has the effect of thermal stability.
Description
Technical Field
The invention relates to the field of plastic cloth, in particular to a formula of plastic cloth and a preparation method thereof.
Background
The plastic cloth is also called plastic cloth, the plastic cloth is formed by hot pressing of a plastic layer and a net-shaped base layer, the plastic cloth has the advantages of water resistance and heat preservation, and can be widely applied to industry and agriculture such as fruit tree wound bandaging, bee colony raising and heat preservation greenhouses, and the like, and the common raw materials for preparing the plastic cloth comprise: polyvinyl chloride (PVC), polyurethane (TPU), polypropylene (PP), Polyethylene (PE): the polyethylene is divided into High Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE), the plastic cloth has the advantages of good flexibility, high working strength, difficult fracture and capability of meeting the needs of people, and the plastic cloth has the defects of no high temperature resistance, difficult degradation, easy weathering and flammability and toxic gas generation in combustion.
The existing plastic cloth has certain defects in preparation, such as poor degradation speed, long life cycle of high molecular polymer, degradation into environmentally-friendly fragments or carbon dioxide and water, natural circulation return, decades and hundreds of years of time, poor thermal stability efficiency and fast automatic oxidation chain reaction of Ha, and therefore, a formula of the plastic cloth is provided.
Disclosure of Invention
The invention mainly aims to provide a plastic cloth formula which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a formula of plastic cloth is prepared from the following raw materials in parts by weight: 40-80 parts of PVC resin powder, 15-30ml of tetrahydrofuran, 3-8g of titanium dioxide, 5-10ml of methanol, 40-70 parts of PVC elastomer resin powder, 20-30 parts of plasticizer, 1-4 parts of epoxidized soybean oil and 1-5 parts of rare earth stabilizer.
Preferably, the composition is prepared from the following raw materials in parts by weight: 40 parts of PVC resin powder, 15ml of tetrahydrofuran, 3g of titanium dioxide, 5ml of methanol, 40 parts of PVC elastomer resin powder, 20 parts of plasticizer, 1 part of epoxidized soybean oil and 1 part of rare earth stabilizer.
Preferably, the composition is prepared from the following raw materials in percentage by weight: 80 parts of PVC resin powder, 30ml of tetrahydrofuran, 8g of titanium dioxide, 10ml of methanol, 70 parts of PVC elastomer resin powder, 30 parts of plasticizer, 4 parts of epoxidized soybean oil and 5 parts of rare earth stabilizer.
A preparation method of plastic cloth is characterized in that: the method comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution, and keeping the mass ratio of the titanium dioxide suspension to the PVC viscous solution to be 2: 100;
and fourthly, continuously stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the titanium dioxide suspension and the PVC viscous solution to form a film on the ceramic tile, and sealing and drying the ceramic tile for forty-eight hours at room temperature to obtain the composite film.
Preferably, in the step I, the weighing equipment adopts an electronic scale of a measuring cylinder, the tetrahydrofuran and the methanol are weighed by the measuring cylinder, and the titanium dioxide is weighed by the electronic scale.
Preferably, in the second step, a stirrer is adopted for stirring, the temperature of the raw materials is controlled at a constant temperature of forty ℃ during stirring, the raw materials are stirred for 60 times by the stirrer, the stirring speed is 60r/min each time, and the stirring is carried out once every 2-3 minutes.
Compared with the prior art, the invention provides a plastic cloth formula, which has the following beneficial effects:
1. the rare earth stabilizer endows PVC with excellent thermal stability in plastic processing, the mechanism of the rare earth stabilizer is determined by a special electronic structure of rare earth lanthanide, a plurality of empty orbitals can be used as central ion receiving ligands, ion coordination bonds are formed through electrostatic attraction, under the action of external thermal oxygen, outer layer or sub-outer layer electrons are excited, and the rare earth atoms and chlorine atoms on a PVC chain have stronger coordination energy, so that the generation of free chlorine atoms can be controlled, the automatic oxidation chain reaction of Ha is prevented or delayed, and the thermal stability effect is achieved;
2. tetrahydrofuran, titanium dioxide, methanol and a rare earth stabilizer are added in the preparation process to improve the photocatalytic activity of the plastic cloth, so that the weight loss rate in unit time is improved, the weight loss rate is improved, the degradation capability of the plastic cloth is improved, and the time for degrading plastics into fragments harmless to the environment is shortened.
Drawings
Fig. 1 is a flow chart of a method for manufacturing a plastic cloth according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A formula of plastic cloth is prepared from the following raw materials in parts by weight: 40 parts of PVC resin powder, 15ml of tetrahydrofuran, 3g of titanium dioxide, 5ml of methanol, 40 parts of PVC elastomer resin powder, 20 parts of plasticizer, 1 part of epoxidized soybean oil and 1 part of rare earth stabilizer.
A preparation method of plastic cloth comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution, and keeping the mass ratio of the titanium dioxide suspension to the PVC viscous solution to be 2: 100;
stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the mixture on a ceramic tile to form a film, and sealing and drying the film for forty-eight hours at room temperature to obtain the composite film;
wherein tetrahydrofuran and methanol are weighed by adopting a measuring cylinder, titanium dioxide is weighed by adopting an electronic scale, a stirrer is adopted for stirring in the second step, the temperature of the raw materials is controlled at a constant temperature of forty ℃ during stirring, the raw materials are stirred by the stirrer for 60 times, the stirring speed is 60r/min, and the stirring is carried out once every 2-3 minutes.
Example 2
A formula of plastic cloth is prepared from the following raw materials in parts by weight: 50 parts of PVC resin powder, 22ml of tetrahydrofuran, 5g of titanium dioxide, 7ml of methanol, 55 parts of PVC elastomer resin powder, 25 parts of plasticizer, 2 parts of epoxidized soybean oil and 2 parts of rare earth stabilizer.
A preparation method of plastic cloth comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution, and keeping the mass ratio of the titanium dioxide suspension to the PVC viscous solution to be 2: 100;
stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the mixture on a ceramic tile to form a film, and sealing and drying the film for forty-eight hours at room temperature to obtain the composite film;
wherein tetrahydrofuran and methanol are weighed by adopting a measuring cylinder, titanium dioxide is weighed by adopting an electronic scale, a stirrer is adopted for stirring in the second step, the temperature of the raw materials is controlled at a constant temperature of forty ℃ during stirring, the raw materials are stirred by the stirrer for 60 times, the stirring speed is 60r/min, and the stirring is carried out once every 2-3 minutes.
Example 3
A formula of plastic cloth is prepared from the following raw materials in parts by weight: 80 parts of PVC resin powder, 30ml of tetrahydrofuran, 8g of titanium dioxide, 10ml of methanol, 70 parts of PVC elastomer resin powder, 30 parts of plasticizer, 4 parts of epoxidized soybean oil and 5 parts of rare earth stabilizer.
A preparation method of plastic cloth comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution, and keeping the mass ratio of the titanium dioxide suspension to the PVC viscous solution to be 2: 100;
stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the mixture on a ceramic tile to form a film, and sealing and drying the film for forty-eight hours at room temperature to obtain the composite film;
wherein tetrahydrofuran and methanol are weighed by adopting a measuring cylinder, titanium dioxide is weighed by adopting an electronic scale, a stirrer is adopted for stirring in the second step, the temperature of the raw materials is controlled at a constant temperature of forty ℃ during stirring, the raw materials are stirred by the stirrer for 60 times, the stirring speed is 60r/min, and the stirring is carried out once every 2-3 minutes.
The beef juice produced according to the formula and the production process of the embodiment 1, the embodiment 2 and the embodiment 3 is bright in color, stronger in smell and better in eating mouthfeel when used.
Example 4
A formula of plastic cloth is prepared from the following raw materials in parts by weight: 40 parts of PVC resin powder, 1ml of tetrahydrofuran, 1g of titanium dioxide, 1ml of methanol, 40 parts of PVC elastomer resin powder, 20 parts of plasticizer, 1 part of epoxidized soybean oil and 0.1 part of rare earth stabilizer.
A preparation method of plastic cloth comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution;
stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the mixture on a ceramic tile to form a film, and sealing and drying the film for forty-eight hours at room temperature to obtain the composite film;
wherein tetrahydrofuran and methanol are weighed by adopting a measuring cylinder, titanium dioxide is weighed by adopting an electronic scale, a stirrer is adopted for stirring in the second step, the temperature of the raw materials is controlled at a constant temperature of forty ℃ during stirring, the raw materials are stirred by the stirrer for 60 times, the stirring speed is 60r/min, and the stirring is carried out once every 2-3 minutes.
The formula and the production process of example 2, example 4, example 5 and example 6 were used to produce cow juice, which was exposed to an ultraviolet lamp and the weight loss rate was measured in unit time, and the test results were as follows:
| irradiation time (sky) | Weight loss ratio (percentage) | |
| Example 1 | 360 | 30％ |
| Example 2 | 360 | 30％ |
| Example 3 | 360 | 30％ |
| Example 4 | 360 | 10％ |
As can be seen from the experimental data in Table 1, the weight loss ratio of the plastic cloth is higher by adding tetrahydrofuran, titanium dioxide, methanol and a rare earth stabilizer during the preparation, the optimal treatment scheme is to keep the mixing ratio at 2:100, the optimal selection is provided in examples 1, 2 and 3,
the rare earth stabilizer of the invention endows PVC with excellent thermal stability in plastic processing, the mechanism of the rare earth stabilizer is determined by the special electronic structure of rare earth lanthanide, a plurality of empty orbitals can be used as central ion receiving ligands to form ion coordination bonds through electrostatic attraction, under the action of external thermal oxygen, the outer layer or the secondary outer layer electrons are excited, and the rare earth atoms and chlorine atoms on the PVC chain have stronger coordination energy, so that the generation of free chlorine atoms can be controlled, thereby preventing or delaying the auto-oxidation chain reaction of Ha, playing a role of thermal stability, improving the photocatalytic activity of the plastic cloth by adding tetrahydrofuran, titanium dioxide, methanol and rare earth stabilizer in the preparation process, further, the weight loss rate in unit time is improved, the weight loss rate is improved, the degradation capability of the plastic cloth is improved, and the time for degrading the plastic into fragments harmless to the environment is shortened.
The basic principles and principal features of the invention and advantages of the invention have been shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The formula of the plastic cloth is characterized in that: the medicine is prepared from the following raw materials in parts by weight: 40-80 parts of PVC resin powder, 15-30ml of tetrahydrofuran, 3-8g of titanium dioxide, 5-10ml of methanol, 40-70 parts of PVC elastomer resin powder, 20-30 parts of plasticizer, 1-4 parts of epoxidized soybean oil and 1-5 parts of rare earth stabilizer.
2. The plastic cloth formulation according to claim 1, wherein: the medicine is prepared from the following raw materials in parts by weight: 40 parts of PVC resin powder, 15ml of tetrahydrofuran, 3g of titanium dioxide, 5ml of methanol, 40 parts of PVC elastomer resin powder, 20 parts of plasticizer, 1 part of epoxidized soybean oil and 1 part of rare earth stabilizer.
3. The plastic cloth formulation according to claim 1, wherein: the material is prepared from the following raw materials in percentage by weight: 80 parts of PVC resin powder, 30ml of tetrahydrofuran, 8g of titanium dioxide, 10ml of methanol, 70 parts of PVC elastomer resin powder, 30 parts of plasticizer, 4 parts of epoxidized soybean oil and 5 parts of rare earth stabilizer.
4. A preparation method of plastic cloth is characterized in that: the method comprises the following steps:
firstly, obtaining all components according to parts, capacity and weight, and uniformly mixing PVC resin powder, PVC elastomer resin powder, a plasticizer and epoxidized soybean oil;
secondly, adding the uniformly mixed object into tetrahydrofuran, stirring the mixture for two hours with strong force to obtain a PVC viscous solution, simultaneously mixing methanol and the tetrahydrofuran to obtain a mixed solution, adding titanium dioxide and a rare earth stabilizer into the mixed solution, and oscillating the mixed solution with ultrasonic for twenty minutes to obtain a uniform suspension of the titanium dioxide;
thirdly, adding the suspension into the PVC viscous solution, and keeping the mass ratio of the titanium dioxide suspension to the PVC viscous solution to be 2: 100;
and fourthly, continuously stirring the titanium dioxide suspension and the PVC viscous solution for six hours, standing for twenty minutes, removing bubbles, casting the titanium dioxide suspension and the PVC viscous solution to form a film on the ceramic tile, and sealing and drying the ceramic tile for forty-eight hours at room temperature to obtain the composite film.
5. The method for preparing plastic cloth according to claim 4, wherein: in the step I, the weighing equipment adopts an electronic scale of a measuring cylinder, tetrahydrofuran and methanol are weighed by the measuring cylinder, and titanium dioxide is weighed by the electronic scale.
6. The method for preparing plastic cloth according to claim 4, wherein: and step two, stirring by adopting a stirrer, controlling the temperature of the raw materials to be constant at forty ℃ during stirring, stirring the raw materials by adopting the stirrer for 60 times, stirring for 1 minute each time, and stirring once every 2-3 minutes at a stirring speed of 60 r/min.
Priority Applications (1)
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| CN101181678A (en) * | 2007-10-26 | 2008-05-21 | 广东省生态环境与土壤研究所 | Rare earth modified photocatalyst as well as degradable plastic film prepared thereby and preparation method thereof |
| CN107090145A (en) * | 2017-06-09 | 2017-08-25 | 广州雷诺丽特塑料有限公司 | A kind of PVC film and preparation method thereof |
| CN107151398A (en) * | 2017-06-09 | 2017-09-12 | 广州雷诺丽特塑料有限公司 | A kind of low temperature resistant PVC film and preparation method thereof |
| CN110511509A (en) * | 2019-09-03 | 2019-11-29 | 海南师范大学 | It is a kind of can photocatalytic degradation polyvinyl chloride plastic film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181678A (en) * | 2007-10-26 | 2008-05-21 | 广东省生态环境与土壤研究所 | Rare earth modified photocatalyst as well as degradable plastic film prepared thereby and preparation method thereof |
| CN107090145A (en) * | 2017-06-09 | 2017-08-25 | 广州雷诺丽特塑料有限公司 | A kind of PVC film and preparation method thereof |
| CN107151398A (en) * | 2017-06-09 | 2017-09-12 | 广州雷诺丽特塑料有限公司 | A kind of low temperature resistant PVC film and preparation method thereof |
| CN110511509A (en) * | 2019-09-03 | 2019-11-29 | 海南师范大学 | It is a kind of can photocatalytic degradation polyvinyl chloride plastic film and preparation method thereof |
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