CN105544193B - The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber - Google Patents
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber Download PDFInfo
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- CN105544193B CN105544193B CN201610047925.0A CN201610047925A CN105544193B CN 105544193 B CN105544193 B CN 105544193B CN 201610047925 A CN201610047925 A CN 201610047925A CN 105544193 B CN105544193 B CN 105544193B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/08—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with halogenated hydrocarbons
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Abstract
The invention discloses a kind of bromoethane and PVA to the hydrophilic modification method of polyester fiber, belong to technical field of macromolecules, the pretreatment of sodium hydroxide solution agitating and heating will be added in polyester fiber, PET fiber surface is destroyed, is easy to later stage modification；Bromoethane solution, agitating and heating modification will be added in polyester fiber, then polyester fiber is added into the PVA solution that mass fraction is 4 5.5%, the polyester fiber after hydrophilic modifying is made in agitating and heating.Processing is modified to polyester fiber using bromoethane solution and PVA after the inventive method addition sodium hydroxide solution pretreatment polyester fiber, obtains hydrophily and the excellent polyester fiber of antistatic property；The inventive method is easy to operate, and reaction speed and reaction temperature are easily controllable, and course of reaction organic solvent addition is few, less toxic low stain low emission, and subsequent operation is easy, beneficial to industrialization promotion, has higher economic benefit.
Description
Technical field：
The invention discloses a kind of bromoethane and PVA to the hydrophilic modification method of polyester fiber, belong to textile finishing process
Technical field.
Background technology：
Terylene is the trade name of dacron fibre, be three big main force's fibers in synthetic fibers it
One.Because terylene linear macromolecule is symmetry benzene ring structure, good linearity and molecular chain structure stereoregular so that it has intensity
High, elasticity is good and the superior physical and mechanical properties such as rigidity is big, and stable to weak acid, alkali, have excellent dimensional stability and
Good corrosion resistance, it is a kind of ideal textile fabric, still, terylene is a kind of typical hydrophobic fibre, its point
Only respectively there is a hydroxyl at sub- both ends, and without other hydrophilic radicals, molecular structure is in close-packed arrays, and crystallinity is high, and hygroscopicity is poor.
Under standard state (20 DEG C of relative humidity 65%), the hydroscopicity of terylene only has 0.4% or so (cotton 7-8%, polyamide fibre 4%, acrylic fibers 1-
2%), hydroscopicity is also only 0.6-0.8% under conditions of 100% relative humidity.Therefore its hygroscopicity is poor, is also easy to produce electrostatic, easily
Stain, influence its snugness of fit.
Endowing terylene fiber or fabric hydrophilic mainly have two methods：First, spinning is modified：In the spinning process of fiber
It is middle that Structure of PET Fiber is modified using the synthetic technology of fiber, make polyester fiber that there is hydrophilicity in itself, so as to change
Kind terylene wears performance；It is modified second, arranging：Mostly in fiber surface modification, reached using dacron afterfinish technology
Modified purpose.Hydrophilic radical is introduced on terylene macromolecular chain, fabric face is formed hydrophilic layer, so as to change fiber surface
Hydrophilicity.
Spinning, which is modified, refers to that during synthetic fibers current trend is to make so that polyester fiber has hydrophilicity
Polymer molecular structure hydrophiling, either introduce hydrophilic monomer or become the list of hydrophilic component after dyeing and finishing is processed
The different degrees of input industrialization such as body, heteromorphosis, microporous, compound house and the modification of graft of terylene structure
In production.The essence of chemical modification is to form one layer of hydrophilic compounds on the surface of polyester fiber or fabric, reaches and carries
The purpose of high microsteping surface hydrophilic performance, adoptable method mainly have a surface grafting polymerization of hydrophilic monomer, and hydrophily is whole
Manage the absorption set and some other processing of fiber surface of agent.
Hydrophilic radical graft copolymerization：The surface grafting polymerization of hydrophilic monomer be in terylene macromolecular introduce hydroxyl,
The hydrophilic radicals such as sulfonic group, ehter bond, so as to improve the hygroscopicity of polyester fiber, graft copolymerization mainly includes chemical graft and spoke
Grafting is penetrated, radiation grafting is better than chemical graft.Because terylene molecular chain structure has close packing ability and high crystallinity,
And there is no active group above macromolecular, graft copolymerization is mainly irradiated using initiator or energy beam, ultraviolet lamp,
Or using plasma performs etching processing to PET fiber surface so that fiber surface produces free radical, then using hydrophilic
Property monomer is graft-polymerized on free radical, so as to form the new superficial layer of water imbibition and antistatic behaviour, this method one
As equipment it is complicated, reaction speed is difficult to control, and has not yet to see industrialization report.
Chinese invention patent CN201410165074.0 provides a kind of methods of PVA to polyester fiber hydrophilic modifying, refers to
Mass fraction is used to pre-process 1h, solid-to-liquid ratio 1 for 3-10% sodium hydroxide solution polyester fiber:50, through rinsing and doing
Polyester fiber after dry is put into the reaction vessel for filling the PVA solution that mass fraction is 0.2-3%, and then reaction vessel is added
Enter by volume 3:2:1 acetic acid, methanol, sulfuric acid, acetic acid, methanol, the volume fraction of sulfuric acid are respectively 10%, then reaction is held
The mol ratio that device adds GA, GA and PVA that mass fraction is 25% is 1:4, the mechanic whirl-nett reaction 1-2h at 50-70 DEG C, instead
After should terminating, with water rinsing, drying.Through characterizing and determining, modified polyester fiber uniformly contains PVA, contact
Angle is that the hydrophily of polyester fiber obtains larger improvement and effect stability below 10-60 degree, is the closest existing of the present invention
Technology, but the technology hydrophilicity is not excellent enough, while this method process is complicated, organic solvent usage amount is big, subsequent operation
Pollution is more serious, is unfavorable for industrialization promotion.
Chinese invention patent CN201510590085.8 discloses a kind of parents' triazines monomer to polyester fiber hydrophilic modifying
Method, comprise the following steps：By the dried length containing GMA side bases of dried PET, 1-3 mass parts of 100 mass parts
Alkane chain extender and the antioxidant of 0.1-0.5 mass parts mix in high-speed mixer；By the material being well mixed double
Melting extrusion granulation is carried out in screw extruder, prepares modified hydrophilic polyester granules；By modified hydrophilic polyesters beads fuse
Spinning, prepare the modified polyester fibre that GMA groups and a small amount of hydroxyl are contained in surface；Polyester fiber after pre-reaction is put into and matched somebody with somebody
In the parents' triazines monomer reaction solution made, graft reaction is carried out under microwave condition, that is, washing for strong hydrophilicity is prepared
Synthetic fibre fiber.This method makes graft reaction speed rapider than conventional method and efficiency high using microwave method, and microwave penetration ability is strong, reaches
To accurate temperature and course of reaction control effect, but this method complex operation, it is unfavorable for industry chemical conversion production.
The content of the invention：
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of easy to operate, reaction speed and reaction temperature
Spend easily controllable, organic solvent addition is few, less toxic low stain low emission, and subsequent operation is easy, and being melted into production beneficial to industry promotes
Polyester fiber hydrophilic modifying method.
The present invention provides following technical scheme：
A kind of bromoethane and PVA are 6- by mass fraction is added in polyester fiber to the hydrophilic modification method of polyester fiber
8% sodium hydroxide solution, the stirring pretreatment 2-2.5h under 60-65 DEG C of temperature conditionss, mechanical agitation speed is 100-150
Rev/min, the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30-40, pretreatment are rinsed after terminating with water, and low temperature dries
It is dry；
Bromoethane solution will be added in polyester fiber after low temperature drying, agitating and heating, mechanical agitation speed is 100-150
Rev/min, heating-up temperature is 30-35 DEG C, reaction time 2-3h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:20-30,
Reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 4-5.5%, agitating and heating, mechanical agitation
Speed is 200-250 revs/min, and heating-up temperature is 50-60 DEG C, reaction time 5-7h, the solid-to-liquid ratio of polyester fiber and PVA solution
For 1:50-60, reaction terminate rear cold water flush and dried under the conditions of 70 DEG C, that is, the polyester fiber after hydrophilic modifying is made.
Preferably, it will be added in the polyester fiber after low temperature drying in bromoethane solution processes, add polyester fiber dry weight
0.01-0.02% pyridinium p-toluenesulfonate solid, agitating and heating.
Preferably, the pyridine p-toluenesulfonic acid is AR, active constituent content >=99%.
Preferably, the sodium hydroxide solution that mass fraction is 7% will be added in polyester fiber, is stirred under 60 DEG C of temperature conditionss
Pretreatment 2.5h is mixed, mechanical agitation speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30.
Preferably, bromoethane solution, agitating and heating will be added in the polyester fiber after low temperature drying, mechanical agitation speed is
100-120 revs/min, heating-up temperature is 35 DEG C, reaction time 2.5-3h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:
20-25。
Preferably, dried polyester fiber is added into the PVA solution that mass fraction is 4.5-5.5%, agitating and heating, machine
Tool mixing speed is 220-250 revs/min, and heating-up temperature is 55-60 DEG C, 6-7h during reaction, and polyester fiber and PVA solution are consolidated
Liquor ratio is 1:50-55, reaction terminate rear cold water flush and dried under the conditions of 70 DEG C.
Preferably, the alcoholysis degree of the PVA is 87.0-89.0%, viscosity 4.5-6.0mpa.s, volatile content≤
5.0%, content of ashes≤0.5%, pH value 5-7, purity >=93.5%.
Bromoethane (chemical formula:C2H5Br) also known as bromic ether, it is a kind of halogenated hydrocarbons, is abbreviated as EtBr, character:Colorless oil
Liquid, there are the smell and calcination taste of similar ether, dew is empty gas or sees that light gradually becomes yellow, volatile, can be with ethanol, second
Ether, chloroform and most immiscible organic solvents.It is the important source material of organic synthesis；Agriculturally it is used as storage cereal, warehouse and room
Deng fumigating insecticide；Bromoethane is to be formed by KBr with the sulfuric acid and ethanol synthesis freezed.It is usually used in the ethyl of gasoline
Change, refrigerant and anesthetic, the bromoethane of Chemical Manufacture worker and all accessible various concentrations of stifling work.The present invention is fine by terylene
Handled after Wesy's NaOH pretreatment using bromoethane, promote the modification of primary colors using bromoethane, promote PVA to polyester fiber
Graft reaction, improve reaction efficiency, and drain rear recyclable recycling, improve the service efficiency of organic solvent, have
Higher economic benefit.
PVA is the abbreviation of polyvinyl alcohol, and white plates, cotton-shaped or pulverulent solids, it is a kind of extremely safe macromolecule
Organic matter, it is nontoxic to human body, have no side effect, there is good biocompatibility, existing such as its aqueous gel especially in medical treatment
Being widely used in terms of ophthalmology, wound dressing and joint prosthesis, while in polyvinyl alcohol film in medicinal film, artificial kidney film etc.
Aspect also has use.Its security can have some idea of from for wound skin repair, and eye eye drip liquid product.It is some of
Model is also commonly used in the facial mask in cosmetics, face cleaning cream, toner and emulsion, is a kind of conventional security film forming agent.
The present invention, to the graft reaction of polyester fiber, has one layer of stable PVA layer, by optimizing instead using PVA in PET fiber surface
Condition is answered, is pre-processed using potassium hydroxide solution, the processing of bromoethane solution, promotes terylene molecule that co-melting cocrystallization effect occurs,
Promote the wearing comfort of improvement polyester fiber.
Beneficial effects of the present invention：
1. the present invention will use bromoethane to handle after polyester fiber NaOH pretreatment, promote primary colors using bromoethane
Modification, promote PVA to improve reaction efficiency to the graft reaction of polyester fiber, and drain rear recyclable recycling, improve
The service efficiency of organic solvent, there is higher economic benefit.
2. the present invention to the graft reaction of polyester fiber, has one layer of stable PVA layer using PVA in PET fiber surface,
By optimizing reaction condition, pre-processed using potassium hydroxide solution, the processing of bromoethane solution, promote terylene molecule to occur co-melting common
Crystallization, promote to improve the wearing comfort of polyester fiber.
3. the inventive method is easy to operate, strong adaptability, reaction speed and reaction temperature are easily controllable, organic solvent addition
Amount is few, the easy less toxic low stain low emission of subsequent operation, beneficial to industrialization promotion, has higher economic benefit.
4. the polyester fiber that the inventive method is modified to obtain has good wearing comfort, resistance to persistence is high, and it absorbs water
Absorption of perspiration is good, and heat transfer and moisture releasing ability have higher raising, and antistatic effect and soil release performance can be had some improvement.
Embodiment：
Embodiments of the invention are described in detail below, the present embodiment is carried out lower premised on inventive technique scheme
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following realities
Apply example.The experimental program of unreceipted actual conditions in embodiment, the condition proposed by generally according to normal condition or manufacturer
Implement.
Embodiment one
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 6% will be added in polyester fiber, pre- place is stirred under 60 DEG C of temperature conditionss
2h is managed, mechanical agitation speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30, pretreatment terminates
Rinsed afterwards with water, low temperature drying；
Bromoethane solution, the pyridine pair of addition polyester fiber dry weight 0.01% will be added in polyester fiber after low temperature drying
Toluene fulfonate solid, agitating and heating, mechanical agitation speed are 100 revs/min, and heating-up temperature is 30 DEG C, reaction time 2h, is washed
The solid-to-liquid ratio of synthetic fibre fiber and bromoethane solution is 1:20, reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 4%, agitating and heating, mechanical agitation speed
For 200 revs/min, heating-up temperature is 50 DEG C, 5h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:50, reaction terminates
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying afterwards.
Embodiment two
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 8% will be added in polyester fiber, pre- place is stirred under 65 DEG C of temperature conditionss
2.5h is managed, mechanical agitation speed is 150 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：40, pretreatment knot
Shu Houyong water rinses, low temperature drying；
Bromoethane solution, the pyridine pair of addition polyester fiber dry weight 0.02% will be added in polyester fiber after low temperature drying
Toluene fulfonate solid, agitating and heating, mechanical agitation speed are 150 revs/min, and heating-up temperature is 35 DEG C, reaction time 3h, is washed
The solid-to-liquid ratio of synthetic fibre fiber and bromoethane solution is 1:30, reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 5.5%, agitating and heating, mechanical agitation speed
Spend for 250 revs/min, heating-up temperature is 60 DEG C, 7h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:60, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
Embodiment three
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 6% will be added in polyester fiber, pre- place is stirred under 65 DEG C of temperature conditionss
2h is managed, mechanical agitation speed is 150 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30, pretreatment terminates
Rinsed afterwards with water, low temperature drying；
Bromoethane solution, the pyridine pair of addition polyester fiber dry weight 0.02% will be added in polyester fiber after low temperature drying
Toluene fulfonate solid, agitating and heating, mechanical agitation speed are 100 revs/min, and heating-up temperature is 35 DEG C, reaction time 2h, is washed
The solid-to-liquid ratio of synthetic fibre fiber and bromoethane solution is 1:30, reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 4%, agitating and heating, mechanical agitation speed
For 250 revs/min, heating-up temperature is 50 DEG C, 7h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:50, reaction terminates
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying afterwards.
Example IV
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 8% will be added in polyester fiber, pre- place is stirred under 60 DEG C of temperature conditionss
2.5h is managed, mechanical agitation speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：40, pretreatment knot
Shu Houyong water rinses, low temperature drying；
Bromoethane solution, the pyridine pair of addition polyester fiber dry weight 0.01% will be added in polyester fiber after low temperature drying
Toluene fulfonate solid, agitating and heating, mechanical agitation speed are 150 revs/min, and heating-up temperature is 30 DEG C, reaction time 3h, is washed
The solid-to-liquid ratio of synthetic fibre fiber and bromoethane solution is 1:20, reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 5.5%, agitating and heating, mechanical agitation speed
Spend for 200 revs/min, heating-up temperature is 60 DEG C, 5h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:60, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
Embodiment five
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 7% will be added in polyester fiber, pre- place is stirred under 60 DEG C of temperature conditionss
2.5h is managed, mechanical agitation speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30, pretreatment knot
Shu Houyong water rinses, low temperature drying；
Will in the polyester fiber after low temperature drying add bromoethane solution, agitating and heating, mechanical agitation speed be 100 turns/
Minute, heating-up temperature is 35 DEG C, reaction time 2.5h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:20, reaction terminates
After drain；
Polyester fiber after draining again adds the PVA solution that mass fraction is 4.5%, agitating and heating, mechanical agitation speed
Spend for 220 revs/min, heating-up temperature is 55 DEG C, 6h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:50, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
Embodiment six
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：
The sodium hydroxide solution that mass fraction is 7% will be added in polyester fiber, pre- place is stirred under 60 DEG C of temperature conditionss
2.5h is managed, mechanical agitation speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30, pretreatment knot
Shu Houyong water rinses, low temperature drying；
Will in the polyester fiber after low temperature drying add bromoethane solution, agitating and heating, mechanical agitation speed be 120 turns/
Minute, heating-up temperature is 35 DEG C, reaction time 3h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:25, after reaction terminates
Drain；
Polyester fiber after draining again adds the PVA solution that mass fraction is 5.5%, agitating and heating, mechanical agitation speed
Spend for 250 revs/min, heating-up temperature is 60 DEG C, 7h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:55, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
Comparative example one
PARSTER fibers (1.56dtex × 38mm), grammes per square metre 244g/m2,Do not arrange.
Comparative example two：
A kind of bromoethane and PVA are pre-processed without sodium hydroxide solution to the hydrophilic modification method of polyester fiber, will
Bromoethane solution, agitating and heating are added in polyester fiber, mechanical agitation speed is 120 revs/min, and heating-up temperature is 35 DEG C, instead
The solid-to-liquid ratio of 3h between seasonable, polyester fiber and bromoethane solution is 1:25, reaction drains after terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 5.5%, agitating and heating, mechanical agitation speed
Spend for 250 revs/min, heating-up temperature is 60 DEG C, 7h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:55, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
Comparative example three
The hydrophilic modification method of a kind of bromoethane and PVA to polyester fiber：Handled without bromoethane solution, i.e.,：It will wash
The sodium hydroxide solution that mass fraction is 7% is added in synthetic fibre fiber, stirring pretreatment 2.5h, machinery stir under 60 DEG C of temperature conditionss
It is 100 revs/min to mix speed, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30, pretreatment is rinsed after terminating with water,
Low temperature drying；
Polyester fiber after draining again adds the PVA solution that mass fraction is 5.5%, agitating and heating, mechanical agitation speed
Spend for 250 revs/min, heating-up temperature is 60 DEG C, 7h during reaction, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:55, reaction knot
Cold water flush and dry under the conditions of 70 DEG C, i.e., the polyester fiber after obtained hydrophilic modifying after beam.
The pyridine p-toluenesulfonic acid is AR, active constituent content >=99%.
The alcoholysis degree of the PVA is 87.0-89.0%, viscosity 4.5-6.0mpa.s, volatile content≤5.0%,
Content of ashes≤0.5%, pH value 5-7, purity >=93.5%.
The present invention uses PARSTER fibers (1.56dtex × 38mm), grammes per square metre 244g/m2Tested, by the fiber
Fabric (being 67.5dtex/96F through tram) is made to be tested.
Method of testing：
The thin elevation measurement of fiber hair：
2.5cm × 20cm fabric sample upper end is fixed on support, lower end is immersed in potassium permanganate solution, measure
Lifting height of the solution on fabric after 30min.
Fiber regain determines:
Oven method measuring, sample balance 24h under conditions of (20 ± 2) DEG C, (65 ± 3) %RH.
Water-wash resistance determines：
With 5g/L standard synthetic detergents, bath raio 1:30, it is 1 time to wash 5min in shaking bath pot at 40 DEG C of temperature,
Terylene is hung naturally dry by continuous washing afterwards for several times.
Hand feel performance is tested：Close mesh and touch the fabric after arranging, using 5-10 people as a small group, graded, according to difference
Feel PRINTED FABRIC is subjected to hand feel evaluation, specific assessment method is：Feel is carried out in terms of flexibility, smooth feeling two to comment
Level, is divided into 5 grades, and 1 grade worst, and fabric feeling is harder, and sliding glutinous sense is poor.5 grades preferably, and fabrics feel soft, cunning are glutinous.
Specific grading is as shown in Table 1.
Table one：Feel is graded
| 5 grades | 4 grades | 3 grades | 2 grades | 2 grades |
| It is very good | Well | In | It is slightly worse | Difference |
Table two：The embodiment of the present invention, which obtains dacron capillary effect and moisture regain, to be influenceed
The fabrics of polyester that the embodiment of the present invention is prepared has good capillary effect and moisture regain effect, i.e. hydrophily obtains
Improve to obvious.PVA molecules form uniform main officer of Tibet hydrophilic polymer film in fabric face, can significantly improve
By comparative example two and comparative example three, we can show that NaOH pretreatment agent bromoethane can be right to the hydrophilicity of fabric
After the pretreatment of polyester fiber molecule, its binding ability with PVA molecules is improved.There there is no its hand feeling quality after the present invention arranges simultaneously
Reduce.
Experiment one：Sodium hydroxide solution treatment temperature influences on dacron capillary effect and moisture regain
Experimental method：Prepare to obtain the polyester fiber after hydrophilic modifying using the method described in embodiment six, inquire into hydrogen-oxygen
Change sodium solution treatment temperature influences on dacron capillary effect and moisture regain.
Table three：Influence of the sodium hydroxide solution treatment temperature to dacron capillary effect and the property that gets damp again
| Treatment temperature | Capillary effect (cm/30min) | Get damp again (%) |
| 40 | 6.7 | 0.74 |
| 45 | 7.2 | 0.78 |
| 50 | 7.8 | 0.80 |
| 55 | 8.3 | 0.83 |
| 60 | 8.6 | 0.94 |
| 65 | 8.7 | 0.93 |
| 70 | 8.5 | 0.87 |
| 75 | 8.3 | 0.73 |
| 80 | 7.5 | 0.59 |
Polyester fiber can effectively improve its hydrophilicity by NaOH pretreatment, and with the rise of temperature,
Wool effect of the fabric and moisture regain performance all increase, and when temperature is more than 65 DEG C, temperature rise, its wool effect of the fabric and moisture regain property are on the contrary
Decline as temperature rises, it may be possible to the too high group property for destroying fiber surface of temperature, cause later stage and PVA polymerisms
It can be affected and reduce its hydrophilicity, the present invention uses the treatment temperature of sodium hydroxide solution as 60-65 DEG C.
Experiment two：Bromoethane solution treatment temperature influences on dacron capillary effect and moisture regain
Experimental method：Prepare to obtain the polyester fiber after hydrophilic modifying using the method described in embodiment six, inquire into bromine second
Alkane solution treatment temperature influences on dacron capillary effect and moisture regain.
Table four：Influence of the bromoethane solution treatment temperature to dacron capillary effect and the property that gets damp again
| Treatment temperature | Capillary effect (cm/30min) | Get damp again (%) |
| 20 | 7.4 | 0.64 |
| 25 | 7.9 | 0.72 |
| 30 | 8.4 | 0.90 |
| 35 | 8.6 | 0.94 |
| 40 | 8.7 | 0.95 |
| 45 | 8.7 | 0.96 |
| 50 | 8.8 | 0.96 |
With the rising of bromoethane treatment temperature, the capillary effect and moisture regain property of its fabrics of polyester all increase, single
After temperature is more than 35 DEG C, the amplitude that its hydrophilicity improves tends towards stability, and is held essentially constant, so from economic benefit angle
Consider, the present invention uses bromoethane solution to handle heating-up temperature as 30-35 DEG C.
Above content is only the better embodiment of the present invention, for one of ordinary skill in the art, according to the present invention
Thought, there will be changes, this specification content should not be construed as to this hair in specific embodiments and applications
Bright limitation.
Claims (7)
1. a kind of bromoethane and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
The sodium hydroxide solution that mass fraction is 6-8% will be added in polyester fiber, pre- place is stirred under 60-65 DEG C of temperature conditionss
2-2.5h is managed, mechanical agitation speed is 100-150 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30-
40, pretreatment is rinsed after terminating with water, low temperature drying；
Will in the polyester fiber after low temperature drying add bromoethane solution, agitating and heating, mechanical agitation speed be 100-150 turn/
Minute, heating-up temperature is 30-35 DEG C, reaction time 2-3h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:20-30, instead
Drained after should terminating；
Polyester fiber after draining again adds the PVA solution that mass fraction is 4-5.5%, agitating and heating, mechanical agitation speed
For 200-250 revs/min, heating-up temperature is 50-60 DEG C, reaction time 5-7h, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:
50-60, reaction terminate rear cold water flush and dried under the conditions of 70 DEG C, that is, the polyester fiber after hydrophilic modifying is made.
2. a kind of bromoethane according to claim 1 and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
It will be added in polyester fiber after low temperature drying in bromoethane solution processes, addition polyester fiber dry weight 0.01-0.02% pyrrole
Pyridine tosilate solid, agitating and heating.
3. a kind of bromoethane according to claim 2 and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
The pyridinium p-toluenesulfonate solid is AR, active constituent content >=99%.
4. a kind of bromoethane according to claim 1 and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
The sodium hydroxide solution that mass fraction is 7% will be added in polyester fiber, stirring pretreatment 2.5h, machine under 60 DEG C of temperature conditionss
Tool mixing speed is 100 revs/min, and the solid-to-liquid ratio of polyester fiber and sodium hydroxide solution is 1：30.
5. a kind of bromoethane according to claim 1 and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
Bromoethane solution, agitating and heating will be added in polyester fiber after low temperature drying, mechanical agitation speed is 100-120 revs/min,
Heating-up temperature is 35 DEG C, reaction time 2.5-3h, and the solid-to-liquid ratio of polyester fiber and bromoethane solution is 1:20-25.
6. a kind of bromoethane according to claim 1 and PVA are to the hydrophilic modification method of polyester fiber, it is characterised in that：
Polyester fiber after draining adds the PVA solution that mass fraction is 4.5-5.5%, agitating and heating, and mechanical agitation speed is
220-250 revs/min, heating-up temperature is 55-60 DEG C, reaction time 6-7h, and the solid-to-liquid ratio of polyester fiber and PVA solution is 1:
50-55, reaction terminate rear cold water flush and dried under the conditions of 70 DEG C.
7. a kind of bromoethane and PVA according to claim 1 or 6 exist to the hydrophilic modification method of polyester fiber, its feature
In：The alcoholysis degree of the PVA is 87.0-89.0%, viscosity 4.5-6.0mpa.s, volatile content≤5.0%, and ash content contains
Amount≤0.5%, pH value 5-7, purity >=93.5%.
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| CN111676696A (en) * | 2020-07-02 | 2020-09-18 | 中科纺织研究院（青岛）有限公司 | Radix isatidis extract modified polyester fiber and preparation method thereof |
| CN115094650B (en) * | 2022-08-03 | 2023-04-14 | 浙江迎丰科技股份有限公司 | Digital printing short-process technology applicable to polyester cotton |
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| CN101367912A (en) * | 2008-09-29 | 2009-02-18 | 西北师范大学 | Modified polyester fibre with excellent hydrophilic and electrostatic capability, and method of preparing the same |
| CN101725033A (en) * | 2009-11-23 | 2010-06-09 | 苏州新纶超净技术有限公司 | Fabric used for making high absorbability dust free wiping cloth and manufacturing method thereof |
| CN101935952A (en) * | 2010-08-31 | 2011-01-05 | 天津工业大学 | Biological modification method of dacron fabrics |
| CN103981711A (en) * | 2014-04-23 | 2014-08-13 | 武汉纺织大学 | Hydrophilic modification method of PVA to polyester fiber |
| CN105088761A (en) * | 2015-09-17 | 2015-11-25 | 福建师范大学泉港石化研究院 | Method for hydrophilic modification of polyester fibers by amphiphilic triazine monomer |
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| CN101367912A (en) * | 2008-09-29 | 2009-02-18 | 西北师范大学 | Modified polyester fibre with excellent hydrophilic and electrostatic capability, and method of preparing the same |
| CN101725033A (en) * | 2009-11-23 | 2010-06-09 | 苏州新纶超净技术有限公司 | Fabric used for making high absorbability dust free wiping cloth and manufacturing method thereof |
| CN101935952A (en) * | 2010-08-31 | 2011-01-05 | 天津工业大学 | Biological modification method of dacron fabrics |
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