CN110669303A - Preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpot - Google Patents
Preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpot Download PDFInfo
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- 229920005989 resin Polymers 0.000 title claims abstract description 53
- 239000011347 resin Substances 0.000 title claims abstract description 53
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 30
- 229920002635 polyurethane Polymers 0.000 claims description 30
- 239000004814 polyurethane Substances 0.000 claims description 30
- 239000004697 Polyetherimide Substances 0.000 claims description 29
- 229920001601 polyetherimide Polymers 0.000 claims description 29
- 229910021485 fumed silica Inorganic materials 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 20
- -1 polytetrafluoroethylene Polymers 0.000 claims description 19
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 19
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 19
- 229920002748 Basalt fiber Polymers 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- NLSFWPFWEPGCJJ-UHFFFAOYSA-N 2-methylprop-2-enoyloxysilicon Chemical compound CC(=C)C(=O)O[Si] NLSFWPFWEPGCJJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 9
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 36
- 230000032683 aging Effects 0.000 abstract description 22
- 241001464837 Viridiplantae Species 0.000 abstract description 17
- 230000004224 protection Effects 0.000 abstract description 8
- 230000003111 delayed effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000003337 fertilizer Substances 0.000 abstract description 4
- 230000012010 growth Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 description 9
- 238000004321 preservation Methods 0.000 description 8
- 230000006750 UV protection Effects 0.000 description 7
- 238000005336 cracking Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- YLRAHPCSOLGPOY-UHFFFAOYSA-N n'-(4-ethylphenyl)oxamide Chemical compound CCC1=CC=C(NC(=O)C(N)=O)C=C1 YLRAHPCSOLGPOY-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001478750 Chlorophytum comosum Species 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000011246 composite particle Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002023 wood 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention mainly relates to the technical field of resin processing, and discloses a preparation method of a weather-resistant and ultraviolet-resistant resin master batch for flowerpots, which comprises the following steps: preparing a component A, preparing a component B, preparing a component C and mixing the raw materials; the preparation method of the weather-resistant and ultraviolet-resistant resin master batch for the flowerpot is simple, the prepared weather-resistant and ultraviolet-resistant resin master batch is high in strength and strong in weather resistance and ultraviolet aging resistance, aging of the flowerpot caused by temperature difference and ultraviolet rays can be delayed, corrosion of fertilizers and the like to the flowerpot can be inhibited, the application range of the flowerpot is improved, the weather-resistant and ultraviolet-resistant resin master batch can be used indoors and outdoors, the flowerpot can be conveniently moved and moved, a good protection effect can be achieved on green plants, and rapid growth of the green plants can be promoted.
Description
Technical Field
The invention mainly relates to the technical field of resin processing, in particular to a preparation method of a weather-resistant and ultraviolet-resistant resin master batch for flowerpots.
Background
Along with the improvement of living standard and living quality of people, people increasingly like to cultivate green plants, but most people live in high-rise buildings at present, so flowerpots are needed in the planting process, the flowerpots for planting flowers are various in form and size, the existing flowerpots are mainly basin-shaped containers made of mud, porcelain, plastics, stones, wood products and other materials and are mainly applied to landscaping, landscape greening, private garden and residential greening, but if the household flowerpots are mainly ceramic flowerpots and plastic flowerpots, the ceramic flowerpots are various in form and rich in color and patterns, but the ceramic flowerpots are heavy in weight, most of the ceramic flowerpots are placed on a storage rack when placed indoors, and in addition, the soil, moisture and the weight of the plants can apply greater pressure to the storage rack in an opposite mode, the storage rack is easy to be arranged in an opposite mode or cause greater damage to furniture, so many consumers prefer the plastic flowerp, the plastic flowerpot is light and convenient to move at will, and does not worry that the flowerpot placed on a storage rack can damage the storage rack or furniture, but the flowerpot is often irradiated by light, is irradiated by ultraviolet rays and needs to be examined for sudden climate change, watering and fertilizing are often needed in the green planting process of seeds, and fertilizer can also generate certain corrosion effect on the flowerpot, so that the plastic flowerpot is easy to age and generate embrittlement under the conditions of simultaneously receiving ultraviolet rays, climate change and fertilizer corrosion, and the plant can be damaged greatly due to sudden embrittlement and cracking in moving, so that the flowerpot with weather resistance and ultraviolet irradiation resistance is needed to meet the needs of people.
The prior patent document CN109749198A discloses a high-toughness rotational molding flowerpot material and a preparation method thereof, and specifically discloses that the raw materials comprise, by mass, 70-90% of polyethylene resin, 2-10% of polycarbonate resin, 4.5-15% of polyurethane resin, 1-3% of nano filler, 0.1-0.5% of plasticizer, 0.6-0.11% of antioxidant and 0.5-0.8% of mold release agent, wherein the nano filler is core-shell structure composite particles which take carbon nanotubes as cores, polyacrylic acid as an intermediate layer and nano silicon dioxide as shells, and is prepared through a complex process, although the prepared flowerpot has certain strength, heat resistance and wear resistance, the flexibility of the flowerpot is strong, the shape of the flowerpot is easy to change inevitably when the flowerpot is used and moved, soil is loosened due to the change of the shape of the flowerpot, and then the root system of plants is damaged, the growth of plants is affected, the plants grow slowly or die, and therefore further improvement of the material structure of the flowerpot is required.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention aims to provide a preparation method of a weather-resistant and ultraviolet-resistant resin master batch for flowerpots.
A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots comprises the following steps:
(1) component A is prepared by heating polytetrafluoroethylene in a heating kettle to melt completely, stirring for 30 ~ 40min, adding N- (2-ethoxyphenyl-N),Stirring (4-ethyl phenyl) -oxalamide at 190 ~ 230r/min for 30 ~ 50min to fully mix and branch the raw materials, enhance the anti-ultraviolet capability of polytetrafluoroethylene, and delay the aging phenomenon of the flowerpot caused by ultraviolet irradiation to obtain a component A;
(2) the preparation of the component B comprises the steps of putting polyurethane into a reaction kettle, heating at the speed of 2 ~ 3 ℃/min until the polyurethane is completely melted, adding methacryloxy silane, keeping the temperature and stirring for 40 ~ 50min, improving the strength and the formability of the raw materials, adding fumed silica and acetic acid solution, stirring at 170 ~ 190r/min for 60 ~ 80min, promoting the fumed silica to be quickly mixed with the raw materials, improving the bonding strength, avoiding the fumed silica from being disconnected with the high molecular raw materials due to temperature difference and ultraviolet irradiation, and enhancing the aging resistance of a flowerpot to obtain the component B;
(3) the preparation of the component C comprises the steps of putting polyetherimide into a reaction kettle, adding polyphenylene sulfide, uniformly mixing, heating to be completely molten at the speed of 3 ~ 4 ℃/min, keeping the temperature and stirring for 60 ~ 70min, reducing the brittleness of the polyetherimide, enhancing the anti-falling performance of a flowerpot, adding basalt fiber, continuously stirring for 30 ~ 40min, connecting the raw materials through the basalt fiber, avoiding the damage of a green plant root caused by the instant separation cracking of the flowerpot, and playing a good protection role on the green plant to obtain the component C;
(4) mixing the components A, B and C, stirring in vacuum at 210 ~ 230r/min for 70 ~ 90min with the vacuum degree of-26 ~ -28kPa, naturally cooling to 80 ~ 100 ℃ and 100 ℃, preserving heat for 30 ~ 40min, heating at the speed of 1.7 ~ 2.1 ℃/min until the mixture is completely melted, fully improving the weather resistance and ultraviolet resistance of the flowerpot, delaying the aging of the flowerpot caused by the external environment, and granulating to obtain the weather-resistant ultraviolet-resistant resin master batch.
The N- (2-ethoxyphenyl-N) of the step (1),- (4-ethylphenyl) -ethanediamide, added in an amount of 11 ~ 13% by weight of polytetrafluoroethylene.
The methacryloxy silane of the step (2) is added in an amount of 16 ~ 18% by weight of the polyurethane.
The addition amount of the fumed silica in the step (2) is 10 ~ 12% of the weight of the polyurethane.
The volume fraction of the acetic acid solution in the step (2) is 6 ~ 8%, and the adding amount of the acetic acid solution is 11 ~ 13% of the weight of the polyurethane.
The adding amount of the polyphenylene sulfide in the step (3) is 25 ~ 27% of the weight of the polyetherimide.
The basalt fiber in the step (3) is added in an amount of 14 ~ 16% of the weight of the polyetherimide.
The weight ratio of the component A, the component B and the component C in the step (4) is that the component A, the component B and the component C are =17 ~ 19:10 ~ 12:6 ~ 7.
The weather-resistant anti-ultraviolet resin master batch for the flowerpot is prepared by the preparation method.
The application method of the weather-resistant and ultraviolet-resistant resin master batch is used for preparing flowerpots, washbasins, sunshade nets and mulching films, and the weather-resistant and ultraviolet-resistant resin master batch is melted and then molded.
The invention has the advantages that: the preparation method of the weather-resistant and ultraviolet-resistant resin master batch for the flowerpot provided by the invention is simple, and the prepared weather-resistant and ultraviolet-resistant resin master batch has high strength, strong weather resistance and ultraviolet aging resistance and can be extendedThe aging of the flowerpot caused by temperature difference and ultraviolet rays is alleviated, the corrosion of fertilizers and the like to the flowerpot is inhibited, the application range of the flowerpot is improved, the flowerpot can be used indoors and outdoors, the pot is convenient to carry and move, a good protection effect on green plants can be achieved, and the rapid growth of the green plants is promoted; firstly, completely melting polytetrafluoroethylene, then adding N- (2-ethoxyphenyl-N),Stirring (4-ethyl phenyl) -oxalamide at a constant temperature to fully mix and branch the raw materials, enhancing the anti-ultraviolet capability of the polytetrafluoroethylene and delaying the aging phenomenon of the flowerpot caused by ultraviolet irradiation; the polyurethane is fully melted and added with methacryloxy silane, so that the strength and the formability of the raw materials are improved, and the fumed silica and the acetic acid solution are added, so that the fumed silica can be promoted to be rapidly mixed with the raw materials, the adhesive strength is improved, the fumed silica is prevented from being disconnected from the high-molecular raw materials due to temperature difference and ultraviolet irradiation, and the aging resistance of the flowerpot is improved; the polyether imide is mixed with the polyphenylene sulfide, so that the brittleness of the polyether imide can be reduced, the anti-falling performance of the flowerpot is enhanced, and the basalt fiber is added, so that the raw materials can be connected through the basalt fiber, the damage of green plant roots caused by the instant separation cracking of the flowerpot is avoided, and a good protection effect on green plants is achieved; all the components are mixed and then stirred in vacuum, so that the weather resistance and the ultraviolet resistance of the flowerpot are fully improved, and the aging of the flowerpot caused by the external environment is delayed; the prepared master batch can be used for preparing various articles, and is convenient to use and wide in application.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a process flow chart of a preparation method of the weather-resistant and ultraviolet-resistant resin master batch for flowerpots.
Detailed Description
The invention is illustrated by the following specific examples.
Example 1
A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots comprises the following steps:
(1) preparation of component A: placing polytetrafluoroethylene in a heating kettle, heating to completely melt, stirring for 30min under heat preservation, and adding N- (2-ethoxyphenyl-N),- (4-ethyl phenyl) -oxalamide, the adding amount of which is 11 percent of the weight of the polytetrafluoroethylene, is stirred for 30min at 190r/min, so that the raw materials are fully mixed and branched, the anti-ultraviolet capability of the polytetrafluoroethylene is enhanced, the aging phenomenon of a flowerpot caused by ultraviolet irradiation is delayed, and the component A is obtained;
(2) preparation of component B: putting polyurethane into a reaction kettle, heating at the speed of 2 ℃/min until the polyurethane is completely melted, adding methacryloxy silane, wherein the adding amount is 16% of the weight of the polyurethane, stirring for 40min under heat preservation, improving the strength and the formability of the raw materials, adding fumed silica and acetic acid solution, wherein the adding amount of the silica is 10% of the weight of the polyurethane, the volume fraction of the acetic acid solution is 6%, and the adding amount of the silica is 11% of the weight of the polyurethane, stirring for 60min at 170r/min, promoting the fumed silica to be rapidly mixed with the raw materials, improving the bonding strength, avoiding the fumed silica from being disconnected with the high molecular raw materials due to temperature difference and ultraviolet irradiation, enhancing the aging resistance of a flowerpot, and obtaining a component B;
(3) preparation of component C: putting polyetherimide into a reaction kettle, adding polyphenylene sulfide, wherein the adding amount is 25% of the weight of the polyetherimide, uniformly mixing, heating at the speed of 3 ℃/min until the polyetherimide is completely melted, keeping the temperature and stirring for 60min, reducing the brittleness of the polyetherimide, enhancing the anti-falling performance of a flowerpot, adding basalt fiber, wherein the adding amount is 14% of the weight of the polyetherimide, continuously stirring for 30min, connecting the raw materials through the basalt fiber, avoiding the damage of a green plant root caused by the instant separation cracking of the flowerpot, and playing a good protection role on the green plant to obtain a component C;
(4) mixing the raw materials, namely mixing the component A, the component B and the component C according to the weight ratio of the component A to the component B to the component C =17:10:6, stirring the mixture in vacuum at 210r/min for 70min, naturally reducing the vacuum degree to-26 kPa, cooling the mixture to 80 ~ 100 ℃, preserving the temperature for 30min, heating the mixture at the speed of 1.7 ℃/min until the mixture is completely melted, fully improving the weather resistance and the ultraviolet resistance of the flowerpot, delaying the aging of the flowerpot caused by the external environment, and granulating to obtain the weather-resistant ultraviolet-resistant resin master batch.
The flowerpot is prepared by using the weather-resistant and ultraviolet-resistant resin master batch, and the weather-resistant and ultraviolet-resistant resin master batch is melted and then molded.
Example 2
A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots comprises the following steps:
(1) preparation of component A: placing polytetrafluoroethylene in a heating kettle, heating to completely melt, stirring for 35min under heat preservation, and adding N- (2-ethoxyphenyl-N),- (4-ethyl phenyl) -oxalamide, the adding amount of which is 12 percent of the weight of the polytetrafluoroethylene, is stirred for 40min at 210r/min, so that the raw materials are fully mixed and branched, the anti-ultraviolet capability of the polytetrafluoroethylene is enhanced, the aging phenomenon of a flowerpot caused by ultraviolet irradiation is delayed, and the component A is obtained;
(2) preparation of component B: putting polyurethane into a reaction kettle, heating at the speed of 2.5 ℃/min until the polyurethane is completely melted, adding methacryloxy silane, wherein the adding amount is 17% of the weight of the polyurethane, stirring for 45min under heat preservation, improving the strength and formability of the raw materials, adding fumed silica and acetic acid solution, wherein the adding amount of the fumed silica is 11% of the weight of the polyurethane, the volume fraction of the acetic acid solution is 7%, and the adding amount of the acetic acid solution is 12% of the weight of the polyurethane, stirring for 70min at 180r/min, promoting the fumed silica to be rapidly mixed with the raw materials, improving the bonding strength, avoiding the fumed silica from being disconnected with high molecular raw materials due to temperature difference and ultraviolet irradiation, and enhancing the aging resistance of flowerpots to obtain a component B;
(3) preparation of component C: putting polyetherimide into a reaction kettle, adding polyphenylene sulfide, wherein the adding amount is 26% of the weight of the polyetherimide, uniformly mixing, heating at the speed of 3.5 ℃/min until the polyetherimide is completely melted, keeping the temperature and stirring for 65min, so that the brittleness of the polyetherimide can be reduced, the anti-falling performance of a flowerpot is enhanced, adding basalt fiber, wherein the adding amount is 15% of the weight of the polyetherimide, continuously stirring for 35min, so that the raw materials can be connected through the basalt fiber, the damage of a green plant root caused by the instant separation cracking of the flowerpot is avoided, a good protection effect on the green plant is achieved, and a component C is obtained;
(4) mixing the raw materials, namely mixing the component A, the component B and the component C according to the weight ratio of the component A to the component B to the component C =18:11:6, stirring the mixture in vacuum at 220r/min for 80min, naturally reducing the vacuum degree to-27 kPa, cooling the mixture to 80 ~ 100 ℃, preserving the temperature for 35min, heating the mixture at the speed of 1.9 ℃/min until the mixture is completely melted, fully improving the weather resistance and the ultraviolet resistance of the flowerpot, delaying the aging of the flowerpot caused by the external environment, and granulating to obtain the weather-resistant ultraviolet-resistant resin master batch.
The washbasin is prepared by using the weather-resistant anti-ultraviolet resin master batch, and the weather-resistant anti-ultraviolet resin master batch is melted and then molded.
Example 3
A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots comprises the following steps:
(1) preparation of component A: placing polytetrafluoroethylene in a heating kettle, heating to completely melt, stirring for 40min under heat preservation, and adding N- (2-ethoxyphenyl-N),- (4-ethyl phenyl) -oxalamide, the addition amount of which is 13 percent of the weight of the polytetrafluoroethylene, is stirred for 50min at 230r/min, so that the raw materials are fully mixed and branched, the anti-ultraviolet capability of the polytetrafluoroethylene is enhanced, the aging phenomenon of a flowerpot caused by ultraviolet irradiation is delayed, and the component A is obtained;
(2) preparation of component B: putting polyurethane into a reaction kettle, heating at the speed of 3 ℃/min until the polyurethane is completely melted, adding methacryloxy silane, wherein the adding amount is 18% of the weight of the polyurethane, stirring for 50min under heat preservation, improving the strength and the formability of the raw materials, adding fumed silica and acetic acid solution, wherein the adding amount of the silica is 12% of the weight of the polyurethane, the volume fraction of the acetic acid solution is 8%, and the adding amount of the silica is 13% of the weight of the polyurethane, stirring for 80min at 190r/min, promoting the fumed silica to be rapidly mixed with the raw materials, improving the bonding strength, avoiding the fumed silica from being disconnected with the high molecular raw materials due to temperature difference and ultraviolet irradiation, enhancing the aging resistance of a flowerpot, and obtaining a component B;
(3) preparation of component C: putting polyetherimide into a reaction kettle, adding polyphenylene sulfide, wherein the adding amount is 27% of the weight of the polyetherimide, uniformly mixing, heating at the speed of 4 ℃/min until the polyetherimide is completely melted, keeping the temperature and stirring for 70min, reducing the brittleness of the polyetherimide, enhancing the anti-falling performance of a flowerpot, adding basalt fiber, wherein the adding amount is 16% of the weight of the polyetherimide, continuously stirring for 40min, connecting the raw materials through the basalt fiber, avoiding the damage of a green plant root caused by the instant separation cracking of the flowerpot, and playing a good protection role on the green plant to obtain a component C;
(4) mixing the raw materials, namely mixing the component A, the component B and the component C according to the weight ratio of the component A to the component B to the component C =19:12:7, stirring the mixture in vacuum at 230r/min for 90min, keeping the vacuum degree at-28 kPa, naturally cooling the mixture to 80 ~ 100 ℃, preserving the heat for 40min, heating the mixture at the speed of 2.1 ℃/min until the mixture is completely melted, fully improving the weather resistance and the ultraviolet resistance of the flowerpot, delaying the aging of the flowerpot caused by the external environment, and granulating to obtain the weather-resistant ultraviolet-resistant resin master batch.
The weather-resistant and ultraviolet-resistant resin master batch is used for preparing the sunshade net, and the weather-resistant and ultraviolet-resistant resin master batch is melted and then molded.
Example 4
A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots comprises the following steps:
(1) preparation of component A: placing polytetrafluoroethylene in a heating kettle, heating to completely melt, stirring for 35min under heat preservation, and adding N- (2-ethoxyphenyl-N),- (4-ethyl phenyl) -oxalamide, the adding amount of which is 12 percent of the weight of the polytetrafluoroethylene, is stirred for 40min at 210r/min, so that the raw materials are fully mixed and branched, the anti-ultraviolet capability of the polytetrafluoroethylene is enhanced, the aging phenomenon of a flowerpot caused by ultraviolet irradiation is delayed, and the component A is obtained;
(2) preparation of component B: putting polyurethane into a reaction kettle, heating at the speed of 2.5 ℃/min until the polyurethane is completely melted, adding methacryloxy silane, wherein the adding amount is 17% of the weight of the polyurethane, stirring for 45min under heat preservation, improving the strength and formability of the raw materials, adding fumed silica and acetic acid solution, wherein the adding amount of the fumed silica is 11% of the weight of the polyurethane, the volume fraction of the acetic acid solution is 7%, and the adding amount of the acetic acid solution is 12% of the weight of the polyurethane, stirring for 70min at 180r/min, promoting the fumed silica to be rapidly mixed with the raw materials, improving the bonding strength, avoiding the fumed silica from being disconnected with high molecular raw materials due to temperature difference and ultraviolet irradiation, and enhancing the aging resistance of flowerpots to obtain a component B;
(3) preparation of component C: putting polyetherimide into a reaction kettle, adding polyphenylene sulfide, wherein the adding amount is 26% of the weight of the polyetherimide, uniformly mixing, heating at the speed of 3.5 ℃/min until the polyetherimide is completely melted, keeping the temperature and stirring for 65min, so that the brittleness of the polyetherimide can be reduced, the anti-falling performance of a flowerpot is enhanced, adding basalt fiber, wherein the adding amount is 15% of the weight of the polyetherimide, continuously stirring for 35min, so that the raw materials can be connected through the basalt fiber, the damage of a green plant root caused by the instant separation cracking of the flowerpot is avoided, a good protection effect on the green plant is achieved, and a component C is obtained;
(4) mixing the raw materials, namely mixing the component A, the component B and the component C according to the weight ratio of the component A to the component B to the component C =18:11:7, stirring the mixture in vacuum at 220r/min for 80min, keeping the vacuum degree at-27 kPa, naturally cooling the mixture to 80 ~ 100 ℃, preserving the temperature for 35min, heating the mixture at the speed of 1.9 ℃/min until the mixture is completely melted, fully improving the weather resistance and the ultraviolet resistance of the flowerpot, delaying the aging of the flowerpot caused by the external environment, and granulating to obtain the weather-resistant ultraviolet-resistant resin master batch.
The mulching film is prepared by using the weather-resistant and ultraviolet-resistant resin master batch, and the weather-resistant and ultraviolet-resistant resin master batch is melted and then molded.
The performance parameters of the weather-resistant ultraviolet-resistant resin master batch are as follows:
the weather-resistant and ultraviolet-resistant resin master batches of the embodiments are respectively selected to be prepared into flowerpots, the diameter of the opening part is 15cm, the diameter of the bottom part is 10cm, the depth is 15cm, and the thickness is 1.5cm, a control group is the existing commercial one-model gardening home plastic flowerpots resin plastic flowerpots, namely, the chlorophytum comosum flowerpots are detected according to the method of GB/T22040-2008, then the flowerpots are placed in a detection environment and are kept stand for 60 days, and the detection environment is as follows: the high temperature is 80 deg.C, the low temperature is-25 deg.C, the high temperature and the low temperature are changed every 12h, ultraviolet irradiation is continuously carried out during the test process, and the radiation intensity is 25mW/cm2After 60 days of the test, the reduction rate (%) of the flexural strength and the reduction rate (%) of the tensile strength of each pot were measured, and the performance parameters of the weather-resistant ultraviolet-resistant resin master batch are shown in Table 1.
Table 1: performance parameters of weather-resistant ultraviolet-resistant resin master batch
| Item | Bending strength | Tensile strength | Rate of reduction of flexural strength | Rate of decrease in tensile Strength |
| Example 1 | 261 | 184 | 11.4 | 12.7 |
| Example 2 | 264 | 188 | 11.1 | 12.4 |
| Example 3 | 262 | 185 | 11.3 | 12.5 |
| Example 4 | 263 | 189 | 11.1 | 12.3 |
| Control group | 208 | 113 | 26.8 | 28.6 |
The results in table 1 show that the weather-resistant and ultraviolet-resistant resin master batch of the embodiment has high bending strength and tensile strength after being prepared into a flowerpot, and has low reduction rate of the bending strength and the tensile strength after being irradiated by temperature difference and ultraviolet for 60 days, which indicates that the weather-resistant and ultraviolet-resistant resin master batch provided by the invention has high strength, excellent weather resistance and excellent ultraviolet resistance.
Claims (10)
1. A preparation method of weather-resistant and ultraviolet-resistant resin master batch for flowerpots is characterized by comprising the following steps:
(1) component A is prepared by heating polytetrafluoroethylene in a heating kettle to melt completely, stirring for 30 ~ 40min, adding N- (2-ethoxyphenyl-N),- (4-ethyl phenyl) -oxalamide is stirred for 30 ~ 50min at 190 ~ 230r/min to obtain a component A;
(2) the preparation of the component B comprises placing polyurethane in a reaction kettle, heating at a speed of 2 ~ 3 deg.C/min to completely melt, adding methacryloxy silane, stirring at constant temperature for 40 ~ 50min, adding fumed silica and acetic acid solution, and stirring at 170 ~ 190r/min for 60 ~ 80min to obtain component B;
(3) the preparation of the component C comprises placing polyetherimide in a reaction kettle, adding polyphenylene sulfide, mixing uniformly, heating at the speed of 3 ~ 4 ℃/min to be completely molten, stirring at the temperature of 3 894 ℃/min for 60 ~ 70min, adding basalt fiber, and continuously stirring for 30 ~ 40min to obtain the component C;
(4) mixing the components A, B and C, stirring at 210 ~ 230r/min under vacuum for 70 ~ 90min, vacuum degree of-26 ~ -28kPa, naturally cooling to 80 ~ 100 deg.C, keeping the temperature for 30 ~ 40min, heating at 1.7 ~ 2.1 deg.C/min until the mixture is completely melted, and granulating to obtain the final product.
2. The method for preparing the weather-resistant and ultraviolet-resistant resin master batch for flowerpots according to claim 1, wherein the N- (2-ethoxyphenyl-N) of the step (1),- (4-ethylphenyl) -ethanediamide, added in an amount of 11 ~ 13% by weight of polytetrafluoroethylene.
3. The method for preparing the master batch of weather-resistant and ultraviolet-resistant resin for flowerpots according to claim 1, wherein the methacryloxy silane of the step (2) is added in an amount of 16 ~ 18% by weight of the polyurethane.
4. The method for preparing the weather-resistant and ultraviolet-resistant resin master batch for flowerpots according to claim 1, wherein the fumed silica of the step (2) is added in an amount of 10 ~ 12% of the weight of the polyurethane.
5. The method for preparing the master batch of weather-resistant and ultraviolet-resistant resin for flowerpots according to claim 1, wherein the acetic acid solution in the step (2) is added in an amount of 11 ~ 13% by weight of the polyurethane, with a volume fraction of 6 ~ 8%.
6. The method for preparing a master batch of weather-resistant and ultraviolet-resistant resin for a flowerpot according to claim 1, wherein the polyphenylene sulfide of the step (3) is added in an amount of 25 ~ 27% of the weight of the polyetherimide.
7. The method for preparing the master batch of the weather-resistant and ultraviolet-resistant resin for a flowerpot according to claim 1, wherein the basalt fiber of the step (3) is added in an amount of 14 ~ 16% of the weight of the polyetherimide.
8. The method for preparing the weather-resistant and ultraviolet-resistant resin master batch for flowerpots according to claim 1, wherein the component A, the component B and the component C in the step (4) are in a weight ratio of the component A to the component B to the component C =17 ~ 19:10 ~ 12:6 ~ 7.
9. The weather-resistant and ultraviolet-resistant resin master batch for flowerpots, prepared by the preparation method of the weather-resistant and ultraviolet-resistant resin master batch of any one of claims 1 ~ 8.
10. The use method of the weather-resistant and ultraviolet-resistant resin master batch of claim 9, which is used for preparing flowerpots, washbasins, sun-shading nets and mulching films, and the weather-resistant and ultraviolet-resistant resin master batch is melted and then molded.
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| CN111456370A (en) * | 2020-04-27 | 2020-07-28 | 扬州扬铭新材料有限公司 | Antibacterial plastic floor tile and manufacturing method thereof |
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| CN102952360A (en) * | 2012-11-06 | 2013-03-06 | 浙江国威汽车配件有限公司 | Fluorine-containing polymer mixing material and method for preparing bulb buffer ball keyway by same |
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