CN102051817A - Methyl acrylate grafted starch slurry synthesized by ultrasound microwave method - Google Patents
Methyl acrylate grafted starch slurry synthesized by ultrasound microwave method Download PDFInfo
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- CN102051817A CN102051817A CN2009102160555A CN200910216055A CN102051817A CN 102051817 A CN102051817 A CN 102051817A CN 2009102160555 A CN2009102160555 A CN 2009102160555A CN 200910216055 A CN200910216055 A CN 200910216055A CN 102051817 A CN102051817 A CN 102051817A
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Abstract
The invention discloses methyl acrylate grafted starch slurry synthesized by an ultrasound microwave method. The methyl acrylate grafted starch slurry is prepared from starch and methyl acrylate (MA) in the weight part ratio of (70.0-90.0):(10.0-30.0) by the ultrasound-microwave method, and has the advantages of simple method, short synthesizing time and low energy consumption. The starch slurry has high adhesion to polyester/cotton blended yarns and synthesized fibers, low viscosity and low sensitivity to environment humidity, and can replace polyvinyl alcohol (PVA) slurry which is unfriendly to environment; and the cost of the slurry is reduced.
Description
Technical field
The present invention relates to the spinning sizing agent field, be specifically related to a kind of methyl acrylate grafting starch and preparation method thereof.
Background technology
Starch belongs to the polysaccharide natural polymer, wide material sources, and cheap be the main slurry of textile warp thread for a long time always.Because the rigid macromolecule of forming by the annular unit of the surplus base of glucose on the starch molecular chain; molecule two-supremes and be rich in hydroxyl; the intermolecular hydrogen bonding effect is strong; make it be insoluble to cold water; expanded one-tenth is stuck with paste in can only the water more than gelatinization point, and viscosity is big, and is mobile poor; serous coat is crisp firmly, to the synthetic fiber poor adhesion.
In order to improve the character of starch, converted starch has appearred, as pyrolysis, acidolysis, oxidized starch etc., be to make the starch polymer degraded, thereby be reduced in the viscosity in the water, improve mobile and, the weaving efficiency to general Quality Pure Cotton Yarn Production is improved the permeability of yarn, but to cotton poor with synthetic fiber blending starch finishing effect.Further etherificate, esterification starch have appearred in sex change, have improved water-soluble, the viscosity and the viscosity stability of starch, and to the adhesiveness of synthetic fiber.But, still to allocate the synthetic slurry of a great deal of into, as polyvinyl alcohol (PVA) to the wear-resisting close veil of demanding thin extra-high-speed or based on the blended yarn of hydrophobic synthetic fibre.PVA is more superior than starch or converted starch to performances such as the obdurability of the affinity of hydrophobic fibre, serous coat, ABRASION RESISTANCE, but long, easy skinning of mashing off time, destarch difficulty, the more important thing is separation difficulty behind the sizing, the destarch waste liquid is difficult for degraded in natural environment.Therefore using no or little PVA is a trend of slurry development from now on, and grafting starch is one of spinning sizing agent that adapts to this trend.
Graft starch is as a kind of novel converted starch, has the adhesion height, the serous coat pliability reaches advantages such as slurry viscosity is low and stable well, is described as " the green slurry " that can substitute PVA fully.The traditional heating means are adopted in the graft modification of starch reaction at present mostly, domestic bibliographical information has also the been arranged graft modification of starch under the microwave action.Microwave radiation adds thermal response, have that speed is fast, homogeneous heating, low, the efficient advantages of higher of energy consumption, starch-grafted reaction under the microwave radiation, can make the macromolecular chain cracking, reduce molecular weight, have the advantage that raising reaction rate and the remarkable discarded object that reduces the reaction generation work the mischief to environment.Discover that also after ultrasonic wave acted on starch, the surface of starch granules formed many small holes, the viscosity of gelatinized corn starch descends.And ultrasonic _ microwave cooperating effect prepares grafting starch, rarely has report so far.
Therefore, textile industry needs a kind of efficient, energy-conservation, green method prepare graft starch, and this graft starch has than low viscosity, to wash/cotton blending and synthetic fiber have good adhesive force, can replace the PVA of big consumption.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of methyl acrylate grafting starch that synthesizes with the ultrasonic-microwave method is provided, and this spinning sizing agent slurry viscosity is lower, and simple synthetic method saves time, low energy consumption.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of with the synthetic methyl acrylate grafting starch of ultrasonic-microwave method, the raw material of this paste compound comprises following component, counts by weight:
Further technical scheme is:
Described methyl acrylate purity is more than or equal to 99.5%, and moisture is less than 0.05%.
Described starch is wheat, corn or cassava ative starch.
Described starch is in acidolysis, oxidation, esterification or etherificate converted starch any of wheat, corn or cassava ative starch.
Compared with prior art, the invention has the beneficial effects as follows: properties of product are good, and slurry viscosity is lower, and simple synthetic method saves time, low energy consumption, cost is low, with wash/adhesiveness of silk/cotton blended yarn is good, with synthetic fiber good adhesive force is arranged also.Adopt starch: methyl acrylate (MA)=70.0～90.0 part: 10.0～30.0 parts of methyl acrylate graft starchs that weight makes with ultrasonic-microwave method, method is easy, and generated time is lacked, and energy consumption is low.This starch size to wash/adhesiveness of silk/cotton blended yarn is good, with synthetic fiber good adhesive force is arranged also, and viscosity is lower, and is little to ambient humidity sensitiveness, can replace the disadvantageous PVA slurry of environment, reduces cost of sizing agent.
The specific embodiment
Below by embodiment the present invention is further specified.Be necessary to be pointed out that at this present embodiment only is used for the present invention is further specified; but can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
Embodiment 1
Take by weighing 80 parts of corn ative starchs, add 320 parts of deionized waters, be stirred into starch milk, ultrasonic 25 minutes of normal temperature, the suction filtration oven dry adds 20 parts of methyl acrylates, 0.031 part of ammonium persulfate then, 0.09 part of potassium peroxydisulfate, 200 parts of deionized waters fully stir, and are positioned under the microwave synthesizer, regulate microwave power control temperature and continue down for 40 ℃ to stir, discharging, cooling, filtration, washing, drying, pulverize Powdered methyl acrylate graft starch.With the AM graft starch, 95 ℃ of mashing offs 1 hour, drying and forming-film, slurry solid content 6%.Measure detailed being shown in Table 1 of mechanical performance of slurry viscosity and serous coat.
Embodiment 2
Take by weighing 85 parts of wheat ative starchs, add 340 parts of deionized waters, be stirred into starch milk, ultrasonic 25 minutes of normal temperature, the suction filtration oven dry adds 15 parts of methyl acrylates then, 0.038 part of ammonium persulfate, 0.007 part of potassium peroxydisulfate, 200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate microwave power control temperature and continue down for 40 ℃ to stir, graft reaction is after 20 minutes, discharging, cooling, filtration, washing, drying, pulverize Powdered methyl acrylate graft starch.Dry Powdered AM graft starch is the methyl acrylate graft starch, 95 ℃ of mashing offs 1 hour, drying and forming-film, slurry solid content 6%.
Measure detailed being shown in Table 1 of mechanical performance of slurry viscosity and serous coat.
Embodiment 3
Take by weighing 90 parts of cassava ative starchs, add 360 parts of deionized waters, be stirred into starch milk, ultrasonic 25 minutes of normal temperature, the suction filtration oven dry adds 10 parts of methyl acrylates then, 0.056 part of ammonium persulfate, 0.07 part of potassium peroxydisulfate, 200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate microwave power control temperature and continue down for 40 ℃ to stir, graft reaction is after 20 minutes, discharging, cooling, filtration, washing, drying, pulverize Powdered methyl acrylate graft starch.With the AM graft starch, 95 ℃ of mashing offs 1 hour, drying and forming-film, slurry solid content 6%.
Measure detailed being shown in Table 1 of mechanical performance of slurry viscosity and serous coat.
Embodiment 4
Take by weighing 80 parts of corn ative starchs, add 320 parts of deionized waters, be stirred into starch milk, ultrasonic 25 minutes of normal temperature, the suction filtration oven dry adds 15 parts of methyl acrylates then, 0.051 part of ammonium persulfate, potassium peroxydisulfate 0.05,200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate microwave power control temperature and continue down for 40 ℃ to stir, graft reaction is after 20 minutes, discharging, cooling, filtration, washing, drying, pulverize Powdered methyl acrylate graft starch.With the methyl acrylate graft starch, 95 ℃ of mashing offs 1 hour, drying and forming-film, slurry solid content 6%.
Measure detailed being shown in Table 1 of mechanical performance of slurry viscosity and serous coat.
Application example 1
Take by weighing 100 parts of the methyl acrylate grafting starchs of embodiment 1, animal oil mixes for 4 parts.Get 125 kilograms in above mixture (dry weight), join 1000 liters in running water is housed, and in the size cooking pan of turn on agitator, begin to heat up after stirring 10min, slurries boil back insulation 10min, add 95 ℃ of hot water constant volumes to 1250 liter, slurry solid content 10%, mashing off is finished, and is standby.
Fabric variety: polyester-cotton blend (65/35) 45
s* 45
s, 110 * 76/10cm of density, 1/1 poplin cloth, the 160cm wide cut is squeezed into stock tank with above ripe slurry, stock tank rolls rod spring pressurization, on say rate 13%.Speed of a motor vehicle 30m/min.Slurry viscosity 7.6 seconds (weaving 3# flow cup); Sizing hairiness attaches, and weave quality is good.
Application example 2
90 kilograms of methyl acrylate grafting starchs (dry weight) with embodiment 2, polyester slurry EW-100R (SK chemical company) 10, fixed oil saponified 1 kilogram (dry weight) joins 1000 liters in running water is housed, and in the size cooking pan of turn on agitator, begins to heat up after stirring 10min, pressurization is warming up to 120 ℃, insulation 3min squeezes into the normal pressure bucket with being about to slurries, constant volume to 1122 liter, slurry solid content 9%, standby.
Fabric variety: wash/cotton (90/10) 45
s* 45
s, 110 * 76/10cm of density, fabric width 160cm, plain weave.Adopt G1 42 type slasher cylinder machine sizing, slurry viscosity 4.0 seconds (weaving 3# cup), sizing speed 30m/min.The sizing any surface finish, filoplume attaches, and leasing is brisk, and weave quality is good.
Application example 3
Take by weighing 100 parts of the methyl acrylate grafting starchs of embodiment 4,20 parts of montmorillonite/acrylic acid sizes (ZL200510021353.0), fixed oil mixes for saponified 3.5 parts.Get above mixture 120 kg (dry weight), join and 550 liters in running water is housed and in the size cooking pan of turn on agitator, begin to heat up after stirring 10min, slurries boil back insulation 60min, and are with hot water constant volume to 750 liter, slurry solid content 16%, standby.
Fabric variety: textile J100s * J100s, density 90 * 80, fabric width 188cm, plain weave.Adopt field, Japanese Tianjin coltfoal HS20 Sizing machines sizing, slurry viscosity 3.5 seconds (weaving 3# cup).Sizing is inhaled slurry evenly, and filoplume attaches, and leasing is brisk, and weave quality is good.
The stretching property by force of table 1 embodiment and Comparative Examples and adhesiveness contrast
Claims (3)
1. one kind with the synthetic methyl acrylate grafting starch of ultrasonic-microwave method, and it is characterized in that: the raw material of this paste compound comprises following component, counts by weight:
2. as claimed in claim 1 with the synthetic methyl acrylate grafting starch of ultrasonic-microwave method, it is characterized in that: the third described olefin(e) acid methyl esters purity is more than or equal to 99.5%, and moisture is less than 0.05%.
3. as claimed in claim 1 with the synthetic methyl acrylate grafting starch of ultrasonic-microwave method, it is characterized in that: described starch is wheat, corn or cassava ative starch.
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| CN2009102160555A CN102051817A (en) | 2009-10-30 | 2009-10-30 | Methyl acrylate grafted starch slurry synthesized by ultrasound microwave method |
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| CN2009102160555A CN102051817A (en) | 2009-10-30 | 2009-10-30 | Methyl acrylate grafted starch slurry synthesized by ultrasound microwave method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601894A (en) * | 2016-03-17 | 2016-05-25 | 青岛科技大学 | Ultrasonic microwave synthesis method for poly(butanediol itaconate-co-butanediol sebate)copolyester |
-
2009
- 2009-10-30 CN CN2009102160555A patent/CN102051817A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601894A (en) * | 2016-03-17 | 2016-05-25 | 青岛科技大学 | Ultrasonic microwave synthesis method for poly(butanediol itaconate-co-butanediol sebate)copolyester |
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Application publication date: 20110511 |