CN115074848A - Ultraviolet-proof anti-aging polypropylene PP cloth and production method thereof - Google Patents
Ultraviolet-proof anti-aging polypropylene PP cloth and production method thereof Download PDFInfo
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- CN115074848A CN115074848A CN202210823095.1A CN202210823095A CN115074848A CN 115074848 A CN115074848 A CN 115074848A CN 202210823095 A CN202210823095 A CN 202210823095A CN 115074848 A CN115074848 A CN 115074848A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
Abstract
The invention discloses an anti-ultraviolet and anti-aging polypropylene PP (polypropylene) cloth and a production method thereof, which relate to the technical field of fiber products and are prepared from the following components: polypropylene resin, nano hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate; the anti-ultraviolet anti-aging polypropylene PP cloth prepared by the invention has excellent anti-ultraviolet anti-aging performance and excellent mechanical property, thereby widening the application field and prolonging the service life of the PP cloth.
Description
Technical Field
The invention belongs to the field of fiber products, and particularly relates to ultraviolet-proof anti-aging polypropylene PP cloth and a production method thereof.
Background
The textile fabric has soft texture, moisture absorption and air permeability, and excellent elasticity and extensibility. The knitted dress is comfortable to wear, fit next to the skin, free of constraint feeling and capable of fully reflecting the human body curve. In recent years, therefore, the proportion of textile fabrics in fashion apparel with its unique textile style characteristics has increased. With the increasing living standard of people in recent years and the continuous updating of consumption concept, the consumption requirements of consumers on the quality, variety, flower type, easy care and the like of textiles, especially novel textile fabrics, are higher and higher. Modern textile fabrics are more colorful and have entered the development stage of multi-functionalization and high-grade development, and novel textile fabrics with various mechanism effects and different functions are developed.
Polypropylene, i.e. polypropylene fiber, has become the fourth largest variety of synthetic fiber due to its simple production process, low cost, high strength, light relative density, etc. The polypropylene fiber has small heat conductivity coefficient and good heat retention, so the polypropylene fiber can be used for manufacturing fabrics.
The invention discloses a flame-retardant antibacterial low-smoke polypropylene fiber, which comprises 90 parts by weight of polyolefin, 1-3 parts by weight of flame retardant, 0.5-1 part by weight of antibacterial agent and 1000 parts by weight of organic solvent. However, although it has a certain antibacterial effect, its ultraviolet resistance and aging resistance are poor, resulting in a greatly reduced service life and limited applications.
Therefore, further improvements to the prior art are needed.
Disclosure of Invention
The invention aims to provide ultraviolet-proof and anti-aging polypropylene PP cloth to solve the defects in the prior art.
The technical scheme adopted by the invention is as follows:
the ultraviolet-proof anti-aging polypropylene PP cloth is prepared from the following components in parts by weight: 70-90 parts of polypropylene resin, 10-16 parts of nano hybrid titanium dioxide, 1-1.4 parts of light stabilizer, 1-2 parts of antioxidant, 8-12 parts of calcium carbonate, 1-1.2 parts of lubricant, 2-5 parts of zinc stearate, 1.3-1.5 parts of antistatic agent and 1-1.6 parts of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
as a further technical scheme: the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide composite material.
As a further technical scheme: the mass fraction of the sodium alginate in the composite solution is 3-5%;
the mass fraction of the glycerol is 12-15%.
As a further technical scheme: the coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
As a further technical scheme: the preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
As a further technical scheme: the mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
As a further technical scheme: the coupling agent treated nano titanium dioxide and the composite solution are mixed in a mass ratio of 1: 3.
as a further technical scheme: the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
As a further technical scheme: the lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
A production method of ultraviolet-proof and anti-aging polypropylene PP cloth comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinning nozzle to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
The ultraviolet ray is a light wave with the wavelength of 200-400 nm, and can be divided into the following parts according to the wavelength: short wave region, UVC: 200nm to 290 nm; medium wave region, UVB: 290 nm-320 nm; long wavelength region, UVA: 320 nm-400 nm. Proper amount of ultraviolet radiation has the functions of sterilizing and promoting vitamin synthesis. The human body receives proper ultraviolet radiation, is beneficial to body health, can promote blood circulation and metabolism, and has the functions of recovering physical strength, eliminating fatigue and relieving pain symptoms. However, excessive irradiation of ultraviolet rays may accelerate aging of human skin and may cause skin canceration. With the rapid development of industry, air pollution and ozone layer cavities occur, so that the ultraviolet radiation intensity is greatly increased, and the health of people is harmed.
The nano hybrid titanium dioxide prepared by the invention is in the middle field of macro particles, micro atoms and molecules, has higher specific surface area, surface free energy and surface binding energy, by introducing the nano-hybrid titanium dioxide particles, the absorption and reflection capability of the PP cloth to ultraviolet rays can be improved, the quantum size effect of the introduced nano-hybrid titanium dioxide can carry a blue shift phenomenon on ultraviolet absorption, namely the absorption band moves to a short wavelength direction, the hybrid nano-titanium dioxide particles have high dispersibility and nonuniformity in a PP cloth system, so that the hybrid nano-titanium dioxide particles have special optical properties, and light can be reflected and scattered when being projected on the particles, through the reflection and scattering effect of the ultraviolet rays with higher efficiency, the purpose of good ultraviolet radiation prevention can be achieved, and therefore the ultraviolet rays can be prevented from penetrating through the PP cloth and damaging human skin.
The nanometer hybrid titanium dioxide has small refractive index (does not absorb visible light), less light scattering, good transparency and no influence on the dyeing performance of the PP cloth, and compared with other ultraviolet-proof agents, the nanometer hybrid titanium dioxide has superior ultraviolet resistance, outstanding heat resistance and antibacterial function, thereby further widening the application field and ensuring the health of human bodies.
Has the beneficial effects that:
the anti-ultraviolet anti-aging polypropylene PP cloth prepared by the invention has excellent anti-ultraviolet anti-aging performance and excellent mechanical property, thereby widening the application field and prolonging the service life of the PP cloth.
Drawings
FIG. 1 is a graph comparing the effect of different amounts of nano-hybrid titanium dioxide on antibacterial performance;
FIG. 2 is a graph comparing the effect of different amounts of nano-hybrid titanium dioxide on the transmittance of 200nm ultraviolet light.
Detailed Description
Example 1
The ultraviolet-proof anti-aging polypropylene PP cloth is prepared from the following components in parts by weight: 70 parts of polypropylene resin, 10 parts of nano-hybrid titanium dioxide, 1 part of light stabilizer, 1 part of antioxidant, 8 parts of calcium carbonate, 1 part of lubricant, 2 parts of zinc stearate, 1.3 parts of antistatic agent and 1 part of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
as a further technical scheme: the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide/composite material.
The mass fraction of sodium alginate in the composite solution is 3%;
the mass fraction of glycerol is 12%.
The coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
The preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
The mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
The coupling agent treated nano titanium dioxide and the composite solution are mixed in a mass ratio of 1: 3.
the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
The lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
A production method of ultraviolet-proof and anti-aging polypropylene PP cloth comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinning nozzle to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
Example 2
The ultraviolet-proof anti-aging polypropylene PP cloth is prepared from the following components in parts by weight: 75 parts of polypropylene resin, 12 parts of nano-hybrid titanium dioxide, 1.2 parts of light stabilizer, 1.2 parts of antioxidant, 10 parts of calcium carbonate, 1.1 parts of lubricant, 3 parts of zinc stearate, 1.4 parts of antistatic agent and 1.2 parts of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide composite material.
The mass fraction of sodium alginate in the composite solution is 4%;
the mass fraction of glycerol is 13%.
The coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
The preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
The mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
The coupling agent treated nano titanium dioxide and the composite solution are mixed in a mass ratio of 1: 3.
the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
The lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
A production method of ultraviolet-proof anti-aging polypropylene PP cloth comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinning nozzle to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
Example 3
The ultraviolet-proof anti-aging polypropylene PP cloth is prepared from the following components in parts by weight: 80 parts of polypropylene resin, 15 parts of nano-hybrid titanium dioxide, 1.3 parts of light stabilizer, 1.6 parts of antioxidant, 10 parts of calcium carbonate, 1.1 parts of lubricant, 4 parts of zinc stearate, 1.4 parts of antistatic agent and 1.5 parts of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide composite material.
The mass fraction of sodium alginate in the composite solution is 4%;
the mass fraction of glycerol is 14%.
The coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
The preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
The mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
The coupling agent treated nano titanium dioxide and the composite solution are mixed according to the mass ratio of 1: 3.
the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
The lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
A production method of ultraviolet-proof and anti-aging polypropylene PP cloth comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinning nozzle to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
Example 4
The ultraviolet-proof anti-aging polypropylene PP cloth is prepared from the following components in parts by weight: 90 parts of polypropylene resin, 16 parts of nano-hybrid titanium dioxide, 1.4 parts of light stabilizer, 2 parts of antioxidant, 12 parts of calcium carbonate, 1.2 parts of lubricant, 5 parts of zinc stearate, 1.5 parts of antistatic agent and 1.6 parts of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide composite material.
The mass fraction of sodium alginate in the composite solution is 5%;
the mass fraction of glycerin is 15%.
The coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
The preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
The mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
The coupling agent treated nano titanium dioxide and the composite solution are mixed in a mass ratio of 1: 3.
the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
The lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
A production method of ultraviolet-proof and anti-aging polypropylene PP cloth comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinneret to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
Comparative example 1: the difference from the example 1 is that no hybrid nano titanium dioxide is added;
comparative example 2: the difference from example 1 is that the hybrid nano-titania is replaced by untreated nano-titania;
experiment of
And (3) detecting the antibacterial performance: the test is carried out according to GB/T20944-:
TABLE 1
| Inhibition rate/%) | |
| Example 1 | 93.5 |
| Example 2 | 92.8 |
| Example 3 | 93.1 |
| Example 4 | 92.4 |
| Comparative example 1 | 33.7 |
| Comparative example 2 | 68.3 |
As can be seen from Table 1, the PP cloth prepared by the invention has excellent antibacterial performance, the antibacterial performance of the PP cloth can be effectively improved by introducing the hybrid nano titanium dioxide, and the application range of the PP cloth can be further improved by improving the antibacterial performance.
The test was carried out according to ISO 150-B04-1994:
aging test: xenon lamp light intensity 1.1J/m 2 The sensor is 420nm, and the temperature of a standard blackboard is 63 ℃;
TABLE 2
As can be seen from Table 2, the PP cloth prepared by the invention has excellent aging resistance, and the aging resistance of the PP cloth can be further improved by introducing the specifically treated hybrid nano titanium dioxide, so that the application field of the PP cloth is improved.
Taking the PP cloth of the embodiment and the comparative example with the area of 15cm multiplied by 15cm as test samples, and testing the ultraviolet transmittance of each sample by using a American CARY-50 type special ultraviolet spectrophotometer;
TABLE 3
As can be seen from Table 3, the PP cloth prepared by the invention has excellent ultraviolet resistance, and by introducing the hybrid nano titanium dioxide, the ultraviolet shielding efficiency can be greatly improved, and the ultraviolet transmittance is greatly reduced.
Based on the sample of example 1, the influence of the addition amount of different nano-hybrid titanium dioxide on the antibacterial performance is compared, as shown in fig. 1, it can be seen from fig. 1 that the antibacterial performance is continuously increased along with the increase of the addition amount of the nano-hybrid titanium dioxide, and after the addition amount exceeds a certain amount, the antibacterial performance cannot be continuously increased.
Based on the sample of example 1, the influence of the addition amount of different nano-hybrid titanium dioxide on the ultraviolet transmittance of 200nm is compared, as shown in fig. 2, and as can be seen from fig. 2, the ultraviolet transmittance of the PP cloth is continuously reduced with the increase of the addition amount of the nano-hybrid titanium dioxide.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited to the illustrated embodiments, and all the modifications and equivalents of the embodiments may be made without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides an ultraviolet protection ageing resistance polypropylene fibre PP cloth which characterized in that: the composition is prepared from the following components in parts by weight: 70-90 parts of polypropylene resin, 10-16 parts of nano hybrid titanium dioxide, 1-1.4 parts of light stabilizer, 1-2 parts of antioxidant, 8-12 parts of calcium carbonate, 1-1.2 parts of lubricant, 2-5 parts of zinc stearate, 1.3-1.5 parts of antistatic agent and 1-1.6 parts of diethyl maleate;
the weight ratio of the nano hybrid titanium dioxide to the diethyl maleate is 10: 1.
2. the ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 1, wherein: the preparation method of the nano hybrid titanium dioxide comprises the following steps:
(1) sequentially adding sodium alginate and glycerol into distilled water, adjusting the temperature to 60 ℃, and stirring while keeping the temperature until a transparent and uniform composite solution is formed;
(2) adding a coupling agent into an ethanol solution, adjusting the pH to 3.5 by adopting acetic acid, adjusting the temperature to 55 ℃, and stirring for 30min under the condition of heat preservation to obtain a coupling agent solution;
(3) adding mesoporous nano-silica into a coupling agent solution, adjusting the temperature to 50 ℃, preserving heat, stirring for 30min, standing for 1 h, performing suction filtration, washing to be neutral, and drying in vacuum to constant weight to obtain coupling agent-treated nano-titania;
(4) mixing the obtained coupling agent treated nano titanium dioxide and the composite solution, adding the mixture into a reaction kettle, introducing nitrogen into the reaction kettle, discharging air in the reaction kettle, adjusting the temperature in the reaction kettle to 92 ℃, adjusting the pressure in the reaction kettle to 6.5MPa, carrying out heat preservation stirring reaction for 1.5 hours, then carrying out pressure relief, carrying out heat preservation standing for 30min, naturally cooling to room temperature, carrying out suction filtration, cleaning and drying to obtain the nano titanium dioxide composite material.
3. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 2, wherein: the mass fraction of the sodium alginate in the composite solution is 3-5%;
the mass fraction of the glycerol is 12-15%.
4. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 2, wherein: the coupling agent is vinyl tri (beta-methoxyethoxy) silane;
the mixing mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the ethanol solution is 1: 10;
the mass fraction of the ethanol solution is 65%.
5. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 2, wherein: the preparation method of the mesoporous nano titanium dioxide comprises the following steps:
mixing titanate and acetylacetone, adding into a reaction kettle, stirring for reaction for 40min, adding alkali liquor, adjusting the temperature, performing hydrothermal reaction, keeping the temperature and stirring for 1 h, drying to obtain reaction solid, calcining the reaction solid for 45min, and naturally cooling to room temperature to obtain mesoporous nano titanium dioxide particles;
the mixing mass ratio of the titanate to the acetylacetone is 3: 2;
the titanate and alkali liquor mixing mass ratio is 1: 2;
the alkali liquor is a sodium hydroxide solution with the mass fraction of 10%;
the calcination temperature is 485 ℃.
6. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 2, wherein: the mixing mass ratio of the mesoporous nano titanium dioxide to the coupling agent solution is 1: 12;
the vacuum drying temperature is 50 ℃, and the vacuum drying time is 2 hours.
7. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 2, wherein: the coupling agent treated nano titanium dioxide and the composite solution are mixed in a mass ratio of 1: 3.
8. the ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 1, wherein: the light stabilizer is salicylate;
the antioxidant is antioxidant 300.
9. The ultraviolet-proof and anti-aging polypropylene PP cloth as claimed in claim 1, wherein: the lubricant is polyethylene wax;
the antistatic agent is ethoxylated aliphatic alkylamine.
10. The production method of the ultraviolet-proof anti-aging polypropylene PP cloth as claimed in claim 1, wherein the production method comprises the following steps: the method comprises the following steps:
(1) weighing the following raw material components in parts by weight: polypropylene resin, nano-hybrid titanium dioxide, a light stabilizer, an antioxidant, calcium carbonate, a lubricant, zinc stearate, an antistatic agent and diethyl maleate;
(2) sequentially adding the raw material components into a stirrer, and stirring and mixing for 15min in the stirrer at normal temperature to obtain a mixture;
(3) drying the mixture at 60 ℃ to obtain a dried material;
(4) adding the obtained dry material into a double-screw extruder for melting, then spraying the material through a spinning nozzle to form a tow, and then stretching, twisting and shaping the tow to obtain filaments;
the spinning temperature of a spinneret is 300 ℃;
the stretching temperature is 138 ℃, the setting temperature is 178 ℃, and the setting time is 45 s;
(5) and (3) blending the obtained filaments into yarns, and weaving the yarns into textile fabrics according to conventional weft knitting.
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