CN107151830B - A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth - Google Patents
A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth Download PDFInfo
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- CN107151830B CN107151830B CN201710356627.4A CN201710356627A CN107151830B CN 107151830 B CN107151830 B CN 107151830B CN 201710356627 A CN201710356627 A CN 201710356627A CN 107151830 B CN107151830 B CN 107151830B
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- shading rate
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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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a kind of preparation methods of composite high-molecular fiber for high shading rate screen cloth, titanium zinc composite nano powder is prepared by raw material of substances such as titanium tetrachloride, zinc oxide, ammonium hydroxide first, nanometer scale hydrophilic UV absorption additive is prepared into benzophenone tetracarboxylic dianhydride, chitosan derivatives again, is finally prepared into composite high-molecular fiber with substance reactions such as polyurethanes, acrylonitrile；During the preparation process, enhance the hydrophilicity of ultraviolet absorber by nano modification, so as to which cospinning preferably is blended with other raw materials in the preparation process of subsequent macromolecular fibre, composite high-molecular fiber prepared by the present invention has good anti-ultraviolet property, as shading screen cloth when preparing raw material main material, avoid the addition of other small molecule ultraviolet absorbers, finished chemical performance is stablized, and shading rate is high, ultraviolet absorption ability is strong, it is not susceptible to migration volatilization, has many advantages, such as strong stretching resistance, ageing-resistant, corrosion-resistant, radiation hardness, light.
Description
Technical field
The present invention relates to polymeric material field more particularly to a kind of composite high-molecular fibers for high shading rate screen cloth
Preparation method.
Background technique
Sunshade net is also known as shading net, is a kind of state-of-the art agriculture, fishing, animal husbandry, radix saposhnikoviae, blinding etc. that nearly 10 Yu Nianlai is promoted
Dedicated protection covering material.Play the role of after summer covering it is a kind of it is light-blocking, keep off the rain, moisturizing, cooling.After winter-spring season covering also
There is certain thermal insulation wetting effect.It is mainly used for the crops such as vegetables, mushroom, flowers, edible mushroom, nursery stock, medicinal material, ginseng, ganoderma lucidum
Protectiveness cultivation and aquatic products poultry farming etc., had obvious effects on to yield etc. is improved.
Traditional sunshade net is using polyethylene, and high density polyethylene (HDPE), PE, PB, PVC, reclaimed materials, completely new material etc. are former material
Material is prepared through ultra-violet stabilizer and anti-oxidation processing, has that stretching resistance is strong, ageing-resistant, corrosion-resistant, radiation hardness, light
The features such as.The main material fiber for preparing of actually traditional sunshade net is not the ability with uvioresistant, is to pass through ultraviolet radiation absorption
It can be only achieved the effect of shading under the action of agent or stabilizer, the way of this simple addition ultraviolet absorbing agent usually has one
Fixed drawback is easy to happen for example, certain ultraviolet-resistant absorbents such as benzophenone compound belongs to the organic matter of small molecule
The problem of volatilization and migration, synergistic effect before for another example some ultraviolet-resistant absorbents prepare raw material with other and it is bad thus
Reduce other performances etc. of finished product.
If can set about being studied on main material fiber from preparing for sunshade net, it is prepared into a kind of inherently with uvioresistant
The composite high-molecular fiber of absorbability is then not necessarily to excessively generate dependence to ultraviolet-resistant absorbent in subsequent technique.
Summary of the invention
Goal of the invention: In order to solve the problems of in the prior art, resist the invention proposes a kind of with excellent
Ultraviolet light function, the preparation method of the composite high-molecular fiber for high shading rate screen cloth of stable chemical performance.
Technical solution: to achieve these objectives, the present invention takes following technical scheme: a kind of answering for high shading rate screen cloth
The preparation method for closing macromolecular fibre, includes the following steps:
(1) titanium zinc composite nano powder: the titanium tetrachloride that 0.5mol/L is configured in titanium tetrachloride instillation distilled water is molten
Liquid, is added the Zinc oxide powder of solution quality a quarter, then is passed through the ammonium hydroxide of titanium tetrachloride solution volume 10%-20%, adds
Heat instills the mixture solution that strong acid control pH is 8, high-speed stirred 20-30min is placed on to 60-70 DEG C of maintenance 20-30min
In low-temperature plasma device, 5-10min is handled under conditions of-10-5 DEG C, slurry is washed with deionized after taking-up, done
It is dry, titanium zinc composite nano powder after 900 DEG C of high-temperature calcinations；
(2) preparation of nanometer scale hydrophilic UV absorption additive: by benzophenone tetracarboxylic dianhydride, chitosan derivatives
It is mixed into supercritical reaction kettle device with the mass ratio of 4:1, quality is added as reaction-ure mixture after reacting 10-15min
The titanium zinc composite nano powder of the step of half (1) preparation, is warming up to 800-900 DEG C, continues with 3h, finally obtain and receive
Meter level hydrophily UV absorption additive；
(3) preparation of composite high-molecular fiber: by polyurethanes, acrylonitrile is mixed with the mass ratio of 2:1, and step is added
Suddenly the nanometer scale hydrophilic UV absorption additive that (1) is prepared, the alchlor of the 0.3%-0.8% of acrylonitrile quality,
2-3 times of reaction-ure mixture of solvent chloroform maintains to react 20-30min under 90 DEG C of vacuum state, finally pours into excessive second
Make Precipitation in alcohol；Filtering, vacuum drying, is prepared into composite high-molecular fiber using wet spinning process.
More preferably, the preferred hydrochloric acid of strong acid described in step (1), avoids bringing more foreign ions.
More preferably, the stirring rate of high-speed stirred described in step (1) is not less than 2000r/min.
More preferably, the mixing time of high-speed stirred described in step (1) is 25min.
More preferably, the chitosan derivatives are water-solubility chitosan derivative.
More preferably, pressure is set as 8MPa in step (2) the supercritical reaction kettle.
More preferably, temperature is set as 50-70 DEG C in step (2) the supercritical reaction kettle.
The utility model has the advantages that a kind of preparation method of composite high-molecular fiber for high shading rate screen cloth provided by the invention,
Pass through high-speed stirred, low-temperature plasma processing, high-temperature calcination etc. by raw material of substances such as titanium tetrachloride, zinc oxide, ammonium hydroxide first
Method prepares titanium zinc composite nano powder, then is prepared into nanoscale parent with benzophenone tetracarboxylic dianhydride, chitosan derivatives
Aqueous UV absorption additive is finally prepared into composite high-molecular fibre jointly with substance reactions such as polyurethanes, acrylonitrile
Dimension；During the preparation process, enhance the hydrophilicity of ultraviolet absorbing agent, by nano modification so as to preferably in subsequent height
Cospinning is blended in the preparation process of molecular fiber with other raw materials, composite high-molecular fiber prepared by the present invention has good anti-
Imparted energy, when preparing raw material main material, avoids adding for other small molecule ultraviolet absorbers as shading screen cloth
Adding, finished chemical performance is stablized, and shading rate is high, and ultraviolet absorption ability is strong, is not susceptible to migration volatilization, strong with stretching resistance,
Ageing-resistant, corrosion-resistant, radiation hardness, it is light the advantages that.
Specific embodiment
Embodiment 1:
A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth, includes the following steps:
(1) titanium zinc composite nano powder: the titanium tetrachloride that 0.5mol/L is configured in titanium tetrachloride instillation distilled water is molten
Liquid, is added the Zinc oxide powder of solution quality a quarter, then is passed through the ammonium hydroxide of titanium tetrachloride solution volume 10%, is heated to 60
DEG C maintain 20min, instill hydrochloric acid control pH be 8 mixture solution, with the rate high-speed stirred 20min postposition of 2100r/min
In low-temperature plasma device, 5min is handled under conditions of -10 DEG C, slurry is washed with deionized after taking-up, it is dry,
Titanium zinc composite nano powder after 900 DEG C of high-temperature calcinations；
(2) preparation of nanometer scale hydrophilic UV absorption additive: by benzophenone tetracarboxylic dianhydride, water soluble chitosan
Derivative is mixed into supercritical reaction kettle device with the mass ratio of 4:1, and pressure is set as 8MPa, and temperature is 50 DEG C, reaction
The titanium zinc composite nano powder of the step of half that quality is reaction-ure mixture is added after 10min (1) preparation, is warming up to
800 DEG C, 3h is continued with, finally obtains nanometer scale hydrophilic UV absorption additive；
(3) preparation of composite high-molecular fiber: by polyurethanes, acrylonitrile is mixed with the mass ratio of 2:1, and step is added
Suddenly the nanometer scale hydrophilic UV absorption additive that (1) is prepared, 0.3% alchlor of acrylonitrile quality, reactant
2 times of total amount of solvent chloroform maintains to react 20min under 90 DEG C of vacuum state, and finally pouring into makes to precipitate in excess ethyl alcohol
It is precipitated；Filtering, vacuum drying, is prepared into composite high-molecular fiber using wet spinning process.
Embodiment 2:
A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth, includes the following steps:
(1) titanium zinc composite nano powder: the titanium tetrachloride that 0.5mol/L is configured in titanium tetrachloride instillation distilled water is molten
Liquid, is added the Zinc oxide powder of solution quality a quarter, then is passed through the ammonium hydroxide of titanium tetrachloride solution volume 20%, is heated to 70
DEG C maintain 30min, instill hydrochloric acid control pH be 8 mixture solution, with the rate high-speed stirred 30min postposition of 2100r/min
In low-temperature plasma device, 10min is handled under conditions of -5 DEG C, slurry is washed with deionized after taking-up, it is dry,
Titanium zinc composite nano powder after 900 DEG C of high-temperature calcinations；
(2) preparation of nanometer scale hydrophilic UV absorption additive: by benzophenone tetracarboxylic dianhydride, water soluble chitosan
Derivative is mixed into supercritical reaction kettle device with the mass ratio of 4:1, and pressure is set as 8MPa, and temperature is 70 DEG C, reaction
The titanium zinc composite nano powder of the step of half that quality is reaction-ure mixture is added after 15min (1) preparation, is warming up to
900 DEG C, 3h is continued with, finally obtains nanometer scale hydrophilic UV absorption additive；
(3) preparation of composite high-molecular fiber: by polyurethanes, acrylonitrile is mixed with the mass ratio of 2:1, and step is added
Suddenly the nanometer scale hydrophilic UV absorption additive that (1) is prepared, 0.8% alchlor of acrylonitrile quality, reactant
3 times of total amount of solvent chloroform maintains to react 30min under 90 DEG C of vacuum state, and finally pouring into makes to precipitate in excess ethyl alcohol
It is precipitated；Filtering, vacuum drying, is prepared into composite high-molecular fiber using wet spinning process.
Embodiment 3:
A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth, includes the following steps:
(1) titanium zinc composite nano powder: the titanium tetrachloride that 0.5mol/L is configured in titanium tetrachloride instillation distilled water is molten
Liquid, is added the Zinc oxide powder of solution quality a quarter, then is passed through the ammonium hydroxide of titanium tetrachloride solution volume 15%, is heated to 65
DEG C maintain 25min, instill hydrochloric acid control pH be 8 mixture solution, with the rate high-speed stirred 25min postposition of 2100r/min
In low-temperature plasma device, 7min is handled under conditions of -8 DEG C, slurry is washed with deionized after taking-up, it is dry, 900
Titanium zinc composite nano powder after DEG C high-temperature calcination；
(2) preparation of nanometer scale hydrophilic UV absorption additive: by benzophenone tetracarboxylic dianhydride, water soluble chitosan
Derivative is mixed into supercritical reaction kettle device with the mass ratio of 4:1, and pressure is set as 8MPa, and temperature is 50-70 DEG C, instead
The titanium zinc composite nano powder for answering the step of half that quality is reaction-ure mixture is added after 13min (1) preparation, is warming up to
850 DEG C, 3h is continued with, finally obtains nanometer scale hydrophilic UV absorption additive；
(3) preparation of composite high-molecular fiber: by polyurethanes, acrylonitrile is mixed with the mass ratio of 2:1, and step is added
Suddenly the nanometer scale hydrophilic UV absorption additive that (1) is prepared, 0.5% alchlor of acrylonitrile quality, reactant
2.5 times of total amount of solvent chloroform maintains to react 26min under 90 DEG C of vacuum state, and finally pouring into makes to sink in excess ethyl alcohol
Precipitation goes out；Filtering, vacuum drying, is prepared into composite high-molecular fiber using wet spinning process.
A kind of composite high-molecular fiber prepared by above-described embodiment 3, for the preparation of high shading rate screen cloth, except common system
Outside standby raw material, without the outer addition ultraviolet absorber of addition, the high shading rate screen cloth being prepared and commercially available common high shading rate net
Cloth carries out shading rate performance test comparison, and the results are shown in Table 1:
1 embodiment 4 of table is compared with commercial product
| Absorption of UV | Shading rate | Comprehensive performance evaluation | |
| Embodiment 4 | 80% | 97% | Preferably |
| Commercial product | 70% | 85% | Generally |
It can be seen that composite high-molecular fiber prepared by the present invention from upper table data and have good anti-ultraviolet property,
Shading rate can also reach requirement, as shading screen cloth when preparing raw material main material, other small molecule uvioresistants be avoided to inhale
The addition of agent is received, finished chemical performance is stablized.
It should be pointed out that for those skilled in the art, without departing from the principle of the present invention,
It can also make several improvements, these improvement also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth, it is characterised in that include the following steps:
(1) titanium zinc composite nano powder: titanium tetrachloride is instilled in distilled water to the titanium tetrachloride solution for being configured to 0.5mol/L, is added
Enter the Zinc oxide powder of solution quality a quarter, then be passed through the ammonium hydroxide of titanium tetrachloride solution volume 10%-20%, is heated to 60-
70 DEG C of maintenance 20-30min, instill strong acid control pH be 8 mixture solution, high-speed stirred 20-30min be placed on low temperature etc. from
In sub-device, 5-10min is handled under conditions of-10-5 DEG C, slurry is washed with deionized after taking-up, it is dry, 900 DEG C
Titanium zinc composite nano powder after high-temperature calcination；
(2) preparation of nanometer scale hydrophilic UV absorption additive: by benzophenone tetracarboxylic dianhydride, chitosan derivatives with 4:
1 mass ratio is mixed into supercritical reaction kettle device, and two points that quality is reaction-ure mixture are added after reaction 10-15min
One of the step of (1) preparation titanium zinc composite nano powder, be warming up to 800-900 DEG C, continue with 3h, finally obtain nanoscale
Hydrophily UV absorption additive；
(3) preparation of composite high-molecular fiber: by polyurethanes, acrylonitrile is mixed with the mass ratio of 2:1, and step is added
(2) the nanometer scale hydrophilic UV absorption additive being prepared, the alchlor of the 0.3%-0.8% of acrylonitrile quality, reaction
The solvent chloroform of 2-3 times of object total amount is maintained to react 20-30min under 90 DEG C of vacuum state, finally be poured into excess ethyl alcohol
Make Precipitation；Filtering, vacuum drying, is prepared into composite high-molecular fiber using wet spinning process.
2. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: the preferred hydrochloric acid of strong acid described in step (1).
3. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: the stirring rate of high-speed stirred described in step (1) is not less than 2000r/min.
4. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: the mixing time of high-speed stirred described in step (1) is 25min.
5. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: the chitosan derivatives are water-solubility chitosan derivative.
6. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: pressure is set as 8MPa in step (2) the supercritical reaction kettle.
7. the preparation method of the composite high-molecular fiber according to claim 1 for high shading rate screen cloth, feature exist
In: temperature is set as 50-70 DEG C in step (2) the supercritical reaction kettle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710356627.4A CN107151830B (en) | 2017-05-19 | 2017-05-19 | A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth |
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| CN201710356627.4A CN107151830B (en) | 2017-05-19 | 2017-05-19 | A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth |
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| CN107151830B true CN107151830B (en) | 2019-08-13 |
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| CN109295769B (en) * | 2018-09-20 | 2021-06-29 | 浙江嘉欣兴昌印染有限公司 | Preparation method of silk with ultraviolet radiation prevention function |
| CN114427211B (en) * | 2022-04-01 | 2022-07-08 | 无棣永利盐业有限公司 | Slope protection of seawater culture pond and construction method |
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| CN104910514A (en) * | 2015-05-29 | 2015-09-16 | 苏州博利迈新材料科技有限公司 | Fragrant fabric raw material with ultraviolet radiation resistance |
| CN106489937A (en) * | 2016-08-31 | 2017-03-15 | 诸暨市沁悦针织有限公司 | A kind of antibacterial and the fiber processed with the antibacterial |
| CN106567192A (en) * | 2016-10-25 | 2017-04-19 | 嘉善蓝欣涂料有限公司 | Method for preparing multifunctional health-care nanofiber membrane |
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