CN102050924A - Grafted starch sizing agent - Google Patents
Grafted starch sizing agent Download PDFInfo
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- CN102050924A CN102050924A CN2009102160517A CN200910216051A CN102050924A CN 102050924 A CN102050924 A CN 102050924A CN 2009102160517 A CN2009102160517 A CN 2009102160517A CN 200910216051 A CN200910216051 A CN 200910216051A CN 102050924 A CN102050924 A CN 102050924A
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- starch
- sizing agent
- methyl acrylate
- grafted starch
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Abstract
The invention discloses a grafted starch sizing agent, which adopts methyl acrylate grafted starch, wherein the methyl acrylate grafted starch is prepared from 70.0 to 90.0 weight parts of starch and 10.0 to 30.0 weight parts of methyl acrylate by an ultrasound-microwave method. The method is simple and convenient, and ensures short synthesis time and low energy consumption. The grafted starch sizing agent has high adhesiveness to polyester/cotton blended yarns as well as to synthetic fibers, relatively lower viscosity, and low sensitivity to environmental humidity, and can replace a polyvinyl alcohol (PVA) sizing agent unfriendly to the environment and reduce the cost of the sizing agent.
Description
Technical field
The present invention relates to the spinning sizing agent field, be specifically related to a kind of 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 synthon poor adhesion.
In order to improve the character of starch, modified starch has appearred, as pyrolysis, acidolysis, Sumstar 190 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 perviousness of yarn, but to cotton poor with synthon 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 adhesivity of synthon.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 union yarn of hydrophobic synthetic fibre.PVA is more superior than starch or modified starch to performances such as the obdurability of the avidity of hydrophobic fibre, serous coat, wear resistancies, 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 physical 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 modified starch, has the adhesive power height, the serous coat snappiness 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 is carried out reacting by heating, 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 speed of reaction and the remarkable waste 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 degradation of starch paste.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 synthon 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 synthetic methyl acrylate grafting starch is provided, and this spinning sizing agent slurry viscosity is lower, and simple synthetic method saves time, less energy-consumption.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of grafting starch, 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 content is less than 0.05%.
Described starch is wheat, corn or cassava ative starch.
Described starch is in acidolysis, oxidation, esterification or etherificate modified starch any of wheat, corn or cassava ative starch.
Compared with prior art, the invention has the beneficial effects as follows: product performance are good, and slurry viscosity is lower, and simple synthetic method saves time, less energy-consumption, cost is low, with wash/adhesivity of silk/cotton blended yarn is good, with synthon 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/adhesivity of silk/cotton blended yarn is good, with synthon good adhesive force is arranged also, and viscosity is lower, and is little to ambient moisture susceptibility, can replace the disadvantageous PVA slurry of environment, reduces cost of sizing agent.
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, 0.05 1 part of ammonium persulphate then, 0.09 part of S-WAT, 200 parts of deionized waters fully stir, and are positioned under the microwave synthesizer, regulate the microwave power controlled 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 property 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 (MA) then, 0.038 part of ammonium persulphate, 0.007 part of S-WAT, 200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate the microwave power controlled 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 property 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, 0.026 part of ammonium persulphate, 0.04 part of S-WAT, 200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate the microwave power controlled 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 property 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, add 15 parts of methyl acrylates (methyl acrylate) then, 0.051 part of ammonium persulphate, 0.09 part of S-WAT, 200 parts of deionized waters fully stir, be positioned under the microwave synthesizer, regulate the microwave power controlled 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 property 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 tap 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, winterized stearin saponified 1 kilogram (dry weight) joins 1000 liters in tap 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 G142 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 3,20 parts of montmorillonite/acrylic acid sizes, winterized stearin mixes for saponified 3.5 parts.Get above mixture 120 kg (dry weight), join and 550 liters in tap 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 slasher sizing machine 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 adhesivity contrast
Claims (3)
1. grafting starch, it is characterized in that: the raw material of this paste compound comprises following component, counts by weight:
2. grafting starch as claimed in claim 1 is characterized in that: the third described olefin(e) acid methyl esters purity is more than or equal to 99.5%, and moisture content is less than 0.05%.
3. grafting starch as claimed in claim 1 is characterized in that: described starch is wheat, corn or cassava ative starch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102160517A CN102050924A (en) | 2009-10-30 | 2009-10-30 | Grafted starch sizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102160517A CN102050924A (en) | 2009-10-30 | 2009-10-30 | Grafted starch sizing agent |
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| Publication Number | Publication Date |
|---|---|
| CN102050924A true CN102050924A (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102160517A Pending CN102050924A (en) | 2009-10-30 | 2009-10-30 | Grafted starch sizing agent |
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| CN (1) | CN102050924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017484A (en) * | 2015-07-14 | 2015-11-04 | 西安工程大学 | Method for preparing starch-poly(butyl acrylate) grafted starch |
| CN109295721A (en) * | 2018-08-29 | 2019-02-01 | 中纺院（浙江）技术研究院有限公司 | The slurry and slashing technique of a kind of polyester and high proportion polyester blended yarn |
-
2009
- 2009-10-30 CN CN2009102160517A patent/CN102050924A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017484A (en) * | 2015-07-14 | 2015-11-04 | 西安工程大学 | Method for preparing starch-poly(butyl acrylate) grafted starch |
| CN105017484B (en) * | 2015-07-14 | 2017-11-10 | 西安工程大学 | A kind of method for preparing starch-polyacrylate acid butyl ester graft starch |
| CN109295721A (en) * | 2018-08-29 | 2019-02-01 | 中纺院（浙江）技术研究院有限公司 | The slurry and slashing technique of a kind of polyester and high proportion polyester blended yarn |
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Application publication date: 20110511 |