CN1285780C - Composite fiber of polyacrylonitrile-sodium alginate, and jpreparation method - Google Patents
Composite fiber of polyacrylonitrile-sodium alginate, and jpreparation method Download PDFInfo
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- CN1285780C CN1285780C CN 200510027049 CN200510027049A CN1285780C CN 1285780 C CN1285780 C CN 1285780C CN 200510027049 CN200510027049 CN 200510027049 CN 200510027049 A CN200510027049 A CN 200510027049A CN 1285780 C CN1285780 C CN 1285780C
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Abstract
The present invention discloses a polyacrylonitrile sodium alginate composite fibre which is composed of sodium alginate and polyacrylonitrile, wherein the sodium alginate accounts for 1 to 20% of the solid content of the composite fibre, and the polyacrylonitrile accounts for 80 to 99% of the solid content of the fibre. The present invention also discloses a manufacturing method of the composite fibre, which comprises the following steps: 1) the polyacrylonitrile is dissolved into a solvent for preparing an 11 to 18% polyacrylonitrile solution; 2) the sodium alginate whose addition amount accounts for 1 to 20% of the dry weight of the polyacrylonitrile is added to the polyacrylonitrile solution; the polyacrylonitrile sodium alginate spinning solution is prepared, and still placed and deaerated; 3) the spinning solution obtained by step b is jetted out from a spinneret orifice, the jetted spinning solution is added to a coagulating bath for solidification and formation, and a finished product is prepared by the normal steps of drafting, curling, forming, drying, etc. The present invention has the advantages of increasing the affinity of a polyacrylonitrile fibre to a human body, enabling the polyacrylonitrile fibre to resist bacteria and relieve itch, increasing the dyeability of the polyacrylonitrile fibre and reducing the pilling property of the polyacrylonitrile fibre.
Description
Technical field
The present invention relates to a kind of composite and manufacture method thereof, particularly relate to a kind of polyacrylonitrile-sodium alginate composite fiber and manufacture method thereof.
Background technology
Polyacrylonitrile fibre is commonly called as acrylic fibers, be a kind of synthetic fiber, good warmth retention property, excellent dyeability arranged and do not have moth erosion and mould sex change, can obtain after its dyeing than wool gay colours more, polyacrylonitrile is widely used in makes the simulate wool goods, so polyacrylonitrile is known as artificial wool again.But polyacrylonitrile also has a lot of shortcomings: hydrophily is poor, causes at easy static electrification of dry weather and human body compatibility relatively poor.Sodium alginate makes that as printing off auxiliary agent the decorative pattern that prints off is clear, bright-coloured, tinctorial yield is high, good hand touch.By adding people's sodium alginate, can also reduce the lousiness of fiber.
In order to improve the performance of these shortcomings of polyacrylonitrile, the researcher has done a large amount of work aspect modified polyacrylonitrile, as silk graft polypropylene nitrile, milk protein graft polypropylene nitrile fiber, but these all will just carry out very big change to existing equipment, technology at polymerization stage, can not obtain a large amount of popularizations.
500,000 tons of China's sea-tangle annual productions, coastal from the China north, plant the coastal of southern Fujian Province always, can plant.Recently also the someone begins these sodium alginates are used for the modification of synthetic fiber, is that 200310110168 " viscose glue active alga fiber and production method thereof " and application number are the Chinese patent of 99120092 " cm-chitosan and alginic acid blend film or fiber preparation method and uses thereof " as application number.But viscose easily causes environmental pollution when producing, and the cost height of cm-chitosan, these have restricted its development.
Summary of the invention
Technical problem to be solved by this invention provides a kind of polyacrylonitrile-sodium alginate composite fiber and manufacture method thereof, to remedy the deficiencies in the prior art and defective, meets the demands of production and living.
In order to solve the problems of the technologies described above, one of the technical solution used in the present invention is: a kind of polyacrylonitrile-sodium alginate composite fiber, described composite fibre is made up of sodium alginate and polyacrylonitrile, sodium alginate accounts for 1～20% of composite fibre solid content, and polyacrylonitrile accounts for 80～99% of fiber solid content.
As optimized technical scheme: sodium alginate is industrial sodium alginate goods or directly extracts from marine alga, laver, undaria pinnitafida, agar, Eucheuma, Caloglossa.
In order to solve the problems of the technologies described above, two of the technical solution used in the present invention is: a kind of preparation method of polyacrylonitrile-sodium alginate composite fiber comprises the steps:
A) polyacrylonitrile is dissolved in the solvent, is made into content and is 11～18% polyacrylonitrile solution;
B) sodium alginate is added in the polyacrylonitrile solution, addition is 1～20% of a polyacrylonitrile dry weight, is made into polyacrylonitrile-sodium alginate spinning solution, standing and defoaming;
C) spinning solution that step b is obtained enters the coagulating bath coagulation forming after spinneret orifice ejection, through drawing-off, curl, typing, dry conventional operation make finished product.
As optimized technical scheme: the solvent described in the step a is one or more in sodium thiocyanate solution, dimethyl sulfoxide (DMSO) (DMSO), the zinc chloride.
Coagulating bath described in the step c is zinc chloride, sodium sulfocyanate, potassium rhodanide, the aqueous solution of calcium chloride, calcium sulfate or calcium nitrate, and the perhaps mixed solution of these salt, the concentration of salt is 3～25%, the temperature of coagulating bath is 20～100 ℃.
Coagulating bath described in the step c is one or more levels.
Described drafting multiple is 1～15 times, and drawing temperature is 35～100 ℃.
The temperature of curling described in the step c is 50～90 ℃.
The temperature of the typing described in the step c is 80～130 ℃.
The temperature of the drying described in the step c is 80～110 ℃.
The invention has the beneficial effects as follows: improve the human body compatibility of polyacrylonitrile fibre, in addition give the fiber anti-bacterial, anti-itching special efficacy, increase polyacrylonitrile fibre stainability, reduce the pilling tendency of polyacrylonitrile fibre.
The specific embodiment
Below in conjunction with specific embodiment the present invention is further elaborated.
Embodiment 1
A kind of polyacrylonitrile-sodium alginate composite fiber, described composite fibre is made up of sodium alginate and polyacrylonitrile, and sodium alginate accounts for 1% of composite fibre solid content, and polyacrylonitrile accounts for 99% of fiber solid content.
It is 11% spinning solution that polyacrylonitrile is made concentration, with the mixed of sodium alginate by 100: 1, leaves standstill 12h after stirring, deaeration then.
Spinning solution enters the spinneret orifice ejection through measuring pump.Enter first coagulating bath, the content of sodium sulfocyanate is 9% in the coagulating bath, calcium chloride 1%, and temperature is 20 ℃.Enter second coagulating bath again, carry out predraft, coagulating bath is 3% sodium thiocyanate water solution, and bathing temperature is that 50 ℃ of stretching ratios are 1 times.Through steam stretching, draft temperature is 100 ℃ again, and stretching ratio is 10 times, with after washing, oils, and is dry under the condition of 100 ℃ of temperature.Dry fiber curls at 80 ℃, and the back oils once more 130 ℃ of temperature HEAT SETTING, obtains polyacrylonitrile/sodium alginate composite fiber finished product 80 ℃ of dryings.
Embodiment 2:
A kind of polyacrylonitrile-sodium alginate composite fiber is characterized in that: described composite fibre is made up of sodium alginate and polyacrylonitrile, and sodium alginate accounts for 10% of composite fibre solid content, and polyacrylonitrile accounts for 90% of fiber solid content.
It is 13% spinning solution that polyacrylonitrile is made concentration, with the mixed of sodium alginate by 100: 4, leaves standstill 12h after stirring, deaeration then.
Spinning solution enters the spinneret orifice ejection through measuring pump.Enter first coagulating bath, the content of sodium sulfocyanate is 2% in the coagulating bath, calcium nitrate 1%, and temperature is 30 ℃.Through second coagulating bath, carry out predraft again, coagulating bath is 9% sodium thiocyanate water solution, and temperature is 50 ℃, and stretching ratio is 3 times.Through steam stretching, draft temperature is 70 ℃ again, and stretching ratio is 5 times, with after washing, oils, and is dry under the condition of 110 ℃ of temperature.Dry fiber curls at 70 ℃, and the back oils once more 80 ℃ of temperature HEAT SETTING, obtains polyacrylonitrile/sodium alginate composite fiber finished product 90 ℃ of dryings.
Embodiment 3
A kind of polyacrylonitrile-sodium alginate composite fiber is characterized in that: described composite fibre is made up of sodium alginate and polyacrylonitrile, and sodium alginate accounts for 20% of composite fibre solid content, and polyacrylonitrile accounts for 80% of fiber solid content.
It is 25% spinning solution that polyacrylonitrile is made concentration, with the mixed of sodium alginate by 100: 2, leaves standstill 12h after stirring, deaeration then.
Spinning solution enters the spinneret orifice ejection through measuring pump.Enter first coagulating bath, the content of sodium sulfocyanate is 9% in the coagulating bath, calcium nitrate 1%, and temperature is 20 ℃.Through second coagulating bath, carry out predraft again, coagulating bath is 2% sodium thiocyanate water solution, and temperature is 50 ℃, and stretching ratio is 3 times.Through steam stretching, draft temperature is 35 ℃ again, and stretching ratio is 5 times, with after washing, oils, and is dry under the condition of 110 ℃ of temperature.Dry fiber curls at 50 ℃, and the back oils once more 120 ℃ of temperature HEAT SETTING, obtains polyacrylonitrile/sodium alginate composite fiber finished product 110 ℃ of dryings.
Claims (10)
1. polyacrylonitrile-sodium alginate composite fiber, it is characterized in that: described composite fibre is made up of sodium alginate and polyacrylonitrile, and sodium alginate accounts for 1～20% of composite fibre solid content, and polyacrylonitrile accounts for 80～99% of fiber solid content.
2. a kind of polyacrylonitrile-sodium alginate composite fiber according to claim 1 is characterized in that: sodium alginate is industrial sodium alginate goods or directly extracts from marine alga, laver, undaria pinnitafida, agar, Eucheuma, Caloglossa.
3. the preparation method of a composite fibre as claimed in claim 1 or 2 is characterized in that comprising the steps:
A) polyacrylonitrile is dissolved in the solvent, is made into content and is 11～18% polyacrylonitrile solution;
B) sodium alginate is added in the polyacrylonitrile solution, addition is 1～20% of a polyacrylonitrile dry weight, is made into polyacrylonitrile-sodium alginate spinning solution, standing and defoaming;
C) spinning solution that step b is obtained enters the coagulating bath coagulation forming after spinneret orifice ejection, through drawing-off, curl, typing, dry conventional operation make finished product.
4. preparation method according to claim 3 is characterized in that: the solvent described in the step a is one or more in sodium thiocyanate solution, dimethyl sulfoxide (DMSO) or the zinc chloride.
5. preparation method according to claim 3, it is characterized in that: the coagulating bath described in the step c is zinc chloride, sodium sulfocyanate, potassium rhodanide, the aqueous solution of calcium chloride, calcium sulfate or calcium nitrate, the perhaps mixed solution of these salt, the concentration of salt is 3～25%, and the temperature of coagulating bath is 20～100 ℃.
6. according to claim 3 or 5 described preparation methods, it is characterized in that: the coagulating bath described in the step c is one or more levels.
7. preparation method according to claim 3 is characterized in that: described drafting multiple is 1～15 times, and drawing temperature is 35～100 ℃.
8. preparation method according to claim 3 is characterized in that: the temperature of curling described in the step c is 50～90 ℃.
9. preparation method according to claim 3 is characterized in that: the temperature of the typing described in the step c is 80～130 ℃.
10. preparation method according to claim 3 is characterized in that: the temperature of the drying described in the step c is 80～110 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027049 CN1285780C (en) | 2005-06-23 | 2005-06-23 | Composite fiber of polyacrylonitrile-sodium alginate, and jpreparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510027049 CN1285780C (en) | 2005-06-23 | 2005-06-23 | Composite fiber of polyacrylonitrile-sodium alginate, and jpreparation method |
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| CN1696361A CN1696361A (en) | 2005-11-16 |
| CN1285780C true CN1285780C (en) | 2006-11-22 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430535C (en) * | 2005-12-21 | 2008-11-05 | 青岛大学 | Alginate/polyvinyl alcohol composite fiber and its preparing process |
| CN100415960C (en) * | 2006-05-29 | 2008-09-03 | 山东海龙股份有限公司 | Cellulose/alginate composite fiber and its preparing method |
| CN104013989A (en) * | 2014-06-13 | 2014-09-03 | 张家港市山牧新材料技术开发有限公司 | Preparation method of efficient haemostatic wound dressing |
| CN107779967B (en) * | 2016-08-30 | 2020-03-31 | 中国石油化工股份有限公司 | Production process of dry acrylic anti-pilling fiber |
| CN108867059A (en) * | 2018-06-01 | 2018-11-23 | 吴江康欣医用敷料有限公司 | A kind of preparation method and applications of superabsorbency toughening carbassus |
| CN108682863B (en) * | 2018-06-11 | 2020-12-18 | 珠海辰玉新材料科技有限公司 | Lithium battery polymer gel electrolyte |
| CN108691024A (en) * | 2018-06-29 | 2018-10-23 | 百事基材料（青岛）股份有限公司 | Modified acrylic fibres and preparation method thereof containing plant extracts |
| CN110592808B (en) * | 2019-09-02 | 2020-11-24 | 中科纺织研究院（青岛）有限公司 | Alga modified PP spunbonded non-woven fabric |
| CN112795992A (en) * | 2020-12-30 | 2021-05-14 | 福建恒益纺织有限公司 | Selenium-containing regenerated fiber skin-care antibacterial multifunctional fabric and preparation method thereof |
| CN115418740B (en) * | 2022-10-19 | 2024-01-26 | 立肯诺(上海)新材料科技有限公司 | Modified polyacrylonitrile fiber and preparation method thereof |
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