CN102634896A - Flame retardant anti-dripping blended fabric and preparation method thereof - Google Patents
Flame retardant anti-dripping blended fabric and preparation method thereof Download PDFInfo
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- CN102634896A CN102634896A CN2012101116190A CN201210111619A CN102634896A CN 102634896 A CN102634896 A CN 102634896A CN 2012101116190 A CN2012101116190 A CN 2012101116190A CN 201210111619 A CN201210111619 A CN 201210111619A CN 102634896 A CN102634896 A CN 102634896A
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Abstract
The invention discloses a flame retardant anti-dripping blended fabric and a preparation method of the blended fabric. The blended fabric is formed by blending aramid fiber and flame retardant terylene according to the mass ratio of (8-20): (80-92). The preparation method comprises the pretreatment process of aramid staple fiber and the blending process of the flame retardant terylene, wherein before blending, polar solvent is used for treating the aramid fiber for 60-90min at the temperature controlled within the range of 60-90 DEG C, and the flame retardant terylene is treated by 4-8g/L alkali for 30-90min at the temperature controlled within the range of 50-80 DEG C. Surface treatment is carried out on the aramid fiber and the flame retardant terylene, so that the fiber surface becomes appropriately rough, and blending can be better carried out. The prepared fabric woven by mixed yarn not only has good flame retardant property, but also has good dripping resistance.
Description
Technical field
The present invention relates to BLENDED FABRIC of a kind of flame-retardant anti-dropping and preparation method thereof.
Background technology
Polyster fibre is with its excellent performance; Be a kind of synthetic fiber with fastest developing speed in the various synthetic fiber, that output is the highest, application surface is the widest; Its fiber textile is used for dress material, curtain, curtain, bedding, interior decoration and various special material in a large number, has to use widely and the industry basis.But polyster fibre belongs to the meltbility combustible fibre; Limited oxygen index (LOI) is about 21; Along with the extensive use of fabric, the potential danger of its fire also becomes increasingly conspicuous, and the dacron burning forms molten drop easily in addition; Molten drop is prone to bring and comprises the secondary injury that scald to wait, therefore to the focus of polyster fibre fire-retardant and anti-molten drop modification having become research.The flame-retardant modified method of terylene mainly contains at present: copolycondensation is carried out in ester exchange or polycondensation phase adding reactive flame retardant in (1); (2) in melt spinning forward direction melt, add additive flame retardant; (3) carry out composite spinning with conventional polyester and the polyester that contains flame-retardant composition; (4) reactive flame retardant carries out graft copolymerization on terylene or fabric; (5) dacron carries out fire-retardant post processing.The phosphorous flame-retardant terylene is the most deep flame-resistant terylene of present industrialization, outside inheriting ordinary polyester original excellent performance, also has fire resistance preferably.But be that its anti-molten drop effect of flame-resistant terylene does not also reach ideal effect.The research of the anti-molten drop of terylene all is to adopt anti-molten drop additive of interpolation (like polytetrafluoroethylene (PTFE), nano particle etc.) and terylene matrix to carry out blend mostly, perhaps utilizes copolymerization method, but basically all exists spinning difficulty or addition to lack the bad problem of effect.
Aramid fiber is that du pont company is at first developed the high-performance fiber with excellent heat stability.Development through decades has become present technological comparative maturity, the most widely used essential fire resistance fibre.Has good high temperature resistant and fire resistance, mechanical property, stable chemical properties and desirable mechanical performance.400 ℃～430 ℃ of its heat decomposition temperatures, about more than 400 ℃ the time when being heated to. beginning carbonization, and through forming tough and tensile coke layer, provide coherent thermal protection with stayed surface, keep its protection feature whereby.The isolation of oxygen is guaranteed in the formation of coke, reduces flammable.
Relevant blending prepares the existing a large amount of report of research and development of flame-retardant textile aspect: people such as Zhao Shulin once did the aramid/fire-retardant viscose blending ratio, and (the aramid/fire-retardant viscose blending ratio is to fabrics flame resistance Effect on Performance textile journal to the research of fabrics flame resistance Effect on Performance; 2006; 27 (12) 74-76), aramid fiber and anti-flaming viscose are carried out blending and reach certain flame retardant effect.Its shortcoming is: 1, there is defective in the brute force of anti-flaming viscose own, and brute force can reduce sharply again under its hygrometric state.2, the maintenance poor performance of fabric shape behind the anti-flaming viscose fabric washing is out of shape comparatively serious.Patent CN 101864631A has announced aramid fiber and the carbon fiber mixed method of yarn that is spun into; Be characterized in that aramid fiber and carbon fiber carry out blending at 1: 1; But exist inevitable shortcoming: 1, the wearability of aramid fiber and carbon fiber is not that very ideal shows that especially moisture pick-up properties is expensive with clothing comfort aspect 2, aramid fiber and carbon fiber price comparison, and the blending ratio of taking 1: 1 makes that the fabric cost is higher.People such as Zhu Zhengfeng are the exploitation and the performance (Shanghai textile technology, 2007,35 (8) 51-53) thereof of anti-flaming viscose/stainless steel fibre blended yarn, and being characterized in attempting to collect fire-retardant, permanence antistatic and even anti-electromagnetism spoke is one.Its shortcoming is: 1, anti-flaming viscose and stainless steel fibre blending technology are wayward, and spinning is difficulty relatively.2, the anti-flaming viscose brute force especially powerful the and washing back form of hygrometric state keep performance low.3, the stainless steel fibre thermal conductivity is good, takes under the situation of the external high temperature scene of a fire, and its heat conduction is greater than heat radiation, though have anti-flammability, protective is low.But the no one carries out blending with flame-resistant terylene and aramid fiber, and draws existing anti-flammability anti-drippage property fabric is arranged again preferably, and how making in two kinds of fiber blends better simultaneously, the obvolvent few people mention.
Summary of the invention
The purpose of this invention is to provide a kind of flame-retardant anti-dropping BLENDED FABRIC and preparation method thereof.
Flame-retardant anti-dropping BLENDED FABRIC provided by the present invention, by aramid fiber and flame-resistant terylene according to mass ratio (8～20): the ratio blending of (80～92) forms.
Wherein, said aramid fiber specifically can be aramid fiber 1313 or Fanglun l414.
Said flame-resistant terylene specifically can be response type phosphorous flame-retardant terylene, and wherein phosphorus content is at 7000～10000ppm.
Prepare the method for above-mentioned flame-retardant anti-dropping BLENDED FABRIC, comprise the steps:
1) aramid fiber is cleaned with cleaning fluid, wash oven dry after having cleaned; Said cleaning fluid is made up of NaOH, degreaser and water;
2) aramid fiber of step 1) oven dry is handled with polar solvent, washed oven dry after handling;
3) flame-resistant terylene is handled with sodium hydroxide solution, washed oven dry after handling;
4) with step 2) flame-resistant terylene after aramid fiber after handling and the step 3) processing is according to mass ratio (8～20): the ratio of (80～92) is carried out blending, obtains said flame-retardant anti-dropping BLENDED FABRIC.
Wherein, concentration sodium hydroxide is 3～8gL in the said cleaning fluid of step 1)
-1, the concentration of degreaser is 2～5gL
-1When with cleaning fluid aramid fiber being cleaned in the step 1), the proportioning of aramid fiber and cleaning fluid (being bath raio) is 1: 10～15.
Step 2) polar solvent described in specifically can be polar non-solute or polar aprotic solvent.
Said polar non-solute is selected from following at least a: acetone, dimethyl formamide and dimethyl sulfoxide (DMSO).
Said polar aprotic solvent is selected from following at least a: ethanol, acetate, propyl alcohol and butanols.
Form with its aqueous solution when said polar solvent specifically uses exists, and its concentration is 200～300mL/L.
During said processing, the proportioning of aramid fiber and polar solvent (being bath raio) is 1: 20～30, and treatment temperature is 60～90 ℃, and the processing time is 60～100min.
The concentration of sodium hydroxide solution described in the step 3) is 4～8g/L.During processing, the proportioning of flame-resistant terylene and sodium hydroxide solution (being bath raio) is 1: 5～8.Processing time 30～90min, treatment temperature is controlled at 50～80 ℃.
The limited oxygen index (LOI) of the flame-retardant anti-dropping BLENDED FABRIC that the present invention is prepared is between 30～40.
The present invention compared with prior art has following beneficial effect:
The present invention carries out surface treatment to aramid fiber and flame-resistant terylene; Be the suitably coarse of fiber surface change, thereby help blending, increase the cohesive force between the fiber; Make aramid fiber and flame-resistant terylene that good obvolvent arranged; The existing good flame performance of the woven fabric of blended yarns of preparation has well anti-drippage property again, for terylene provides new approaches in the research of new application facet field and anti-drippage.
The specific embodiment
Below in conjunction with instantiation, further set forth the present invention, should be understood that these instances only are used to explain the present invention, limit the scope of the invention and it goes without doing.Should be understood that externally those skilled in the art can make various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute limited range equally.
Experimental technique described in the following embodiment like no specified otherwise, is conventional method; Said reagent and material like no specified otherwise, all can obtain from commercial sources.
Embodiment 1:
(1) get 200g aramid fiber 1313 fiber, (wherein, naoh concentration is 8gL to add the cleaning fluid of being made up of NaOH, degreaser and water at 1: 10 by bath raio
-1, degreaser concentration is 2gL
-1); Clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the acetone soln of 200mL/L, and bath raio was controlled at 1: 30, and treatment temperature is 90 ℃, and the processing time is 60min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 8000ppm) 500 grams, the sodium hydroxide solution that adds 4g/L in 1: 6 ratio of bath raio is handled, processing time 90min, and treatment temperature is controlled at 50 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 8% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 92%.
The limited oxygen index of resulting BLENDED FABRIC is 31.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 2:
(1) get 200g aramid fiber 1313 fiber, (wherein, naoh concentration is 3gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 15 by bath raio
-1, degreaser DO concentration is 3gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the dimethyl formamide solution of 300mL/L, and bath raio was controlled at 1: 20, and treatment temperature is 60 ℃, and the processing time is 100min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 10000ppm) flame-resistant terylene 300 grams, the sodium hydroxide solution that adds 8g/L in 1: 5 ratio of bath raio is handled, processing time 30min, and treatment temperature is controlled at 80 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 20% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 80%.
The limited oxygen index of resulting BLENDED FABRIC is 40.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 3:
(1) get 200g aramid fiber 1313 fiber, (wherein, naoh concentration is 6gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 13 by bath raio
-1, degreaser DO concentration is 5gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the dimethyl sulphoxide solution of 250mL/L, and bath raio was controlled at 1: 25, and treatment temperature is 80 ℃, and the processing time is 80min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 7000ppm) 300 grams, the sodium hydroxide solution that adds 6g/L in 1: 8 ratio of bath raio is handled, processing time 60min, and treatment temperature is controlled at 70 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 10% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 90%.
The limited oxygen index of resulting BLENDED FABRIC is 34.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 4:
(1) get 200g Fanglun l414 fiber, (wherein, naoh concentration is 8gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 15 by bath raio
-1, degreaser DO concentration is 2gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the ethanolic solution of 200mL/L, and bath raio was controlled at 1: 30, and treatment temperature is 90 ℃, and the processing time is 60min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 8000ppm) 500 grams, the sodium hydroxide solution that adds 4g/L in 1: 7 ratio of bath raio is handled, processing time 90min, and treatment temperature is controlled at 50 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 8% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 92%.
The limited oxygen index of resulting BLENDED FABRIC is 30.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 5:
(1) get 200g aramid fiber 1313 fiber, (wherein, naoh concentration is 6gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 10 by bath raio
-1, degreaser DO concentration is 5gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the acetic acid solution of 250mL/L, and bath raio was controlled at 1: 25, and treatment temperature is 80 ℃, and the processing time is 80min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 9000ppm) 300 grams, the sodium hydroxide solution that adds 6g/L in 1: 5 ratio of bath raio is handled, processing time 60min, and treatment temperature is controlled at 70 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 15% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 85%.
The limited oxygen index of resulting BLENDED FABRIC is 37.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 6:
(1) get 200g Fanglun l414 fiber, (wherein, naoh concentration is 6gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 12 by bath raio
-1, degreaser DO concentration is 5gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the propanol solution of 280mL/L, and bath raio was controlled at 1: 20, and treatment temperature is 80 ℃, and the processing time is 60min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 10000ppm) 300 grams, the sodium hydroxide solution that adds 4g/L in 1: 8 ratio of bath raio is handled, processing time 60min, and treatment temperature is controlled at 70 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 8% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 92%.
The limited oxygen index of resulting BLENDED FABRIC is 32.Fabric after the blending does not have drip phenomenon when burning.
Embodiment 7:
(1) get 100g aramid fiber 1313 fiber, (wherein, naoh concentration is 3gL to add the cleaning fluid of being made up of NaOH, degreaser DO and water at 1: 15 by bath raio
-1, degreaser DO concentration is 3gL
-1), clean up, take out running water then and clean oven dry;
(2) aramid fiber after will cleaning is placed in the beaker, adds the butanol solution of 200mL/L, and bath raio was controlled at 1: 20, and treatment temperature is 90 ℃, and the processing time is 60min, washes oven dry after the processing;
(3) get response type phosphorous flame-retardant terylene (phosphorus content 8000ppm) 300 grams, the sodium hydroxide solution that adds 8g/L in 1: 7 ratio of bath raio is handled, processing time 30min, and treatment temperature is controlled at 80 ℃, cleans oven dry with running water;
(4) aramid fiber of handling well and flame-resistant terylene are accounted for 20% by the mass ratio aramid fiber, carry out weaving cotton cloth after the blending the fabric that obtains with flame-retardant anti-dropping and flame-resistant terylene accounts for 80%.
The limited oxygen index of resulting BLENDED FABRIC is 40.Fabric after the blending does not have drip phenomenon when burning.
Claims (10)
1. flame-retardant anti-dropping BLENDED FABRIC, by aramid fiber and flame-resistant terylene according to mass ratio (8～20): the ratio blending of (80～92) forms.
2. flame-retardant anti-dropping BLENDED FABRIC according to claim 1 is characterized in that: said aramid fiber is aramid fiber 1313 or Fanglun l414.
3. flame-retardant anti-dropping BLENDED FABRIC according to claim 1 and 2 is characterized in that: said flame-resistant terylene is a response type phosphorous flame-retardant terylene; Wherein phosphorus content is 7000～10000ppm.
4. according to each described flame-retardant anti-dropping BLENDED FABRIC among the claim 1-3, it is characterized in that: said flame-retardant anti-dropping BLENDED FABRIC prepares according to each said method among the claim 5-10.
5. prepare the method for each said flame-retardant anti-dropping BLENDED FABRIC among the claim 1-3, comprise the steps:
1) aramid fiber is cleaned with cleaning fluid, wash oven dry after having cleaned; Said cleaning fluid is made up of NaOH, degreaser and water;
2) aramid fiber of step 1) oven dry is handled with polar solvent, washed oven dry after handling;
3) flame-resistant terylene is handled with sodium hydroxide solution, washed oven dry after handling;
4) with step 2) flame-resistant terylene after aramid fiber after handling and the step 3) processing is according to mass ratio (8～20): the ratio of (80～92) is carried out blending, obtains said flame-retardant anti-dropping BLENDED FABRIC.
6. method according to claim 5 is characterized in that: concentration sodium hydroxide is 3～8gL in the said cleaning fluid of step 1)
-1, the concentration of degreaser is 2～5gL
-1
The proportioning of aramid fiber described in the step 1) and cleaning fluid is 1: 10～15.
7. according to claim 5 or 6 described methods, it is characterized in that: step 2) described in polar solvent be polar non-solute or polar aprotic solvent;
Said polar non-solute is selected from following at least a: acetone, dimethyl formamide and dimethyl sulfoxide (DMSO);
Said polar aprotic solvent is selected from following at least a: ethanol, acetate, propyl alcohol and butanols.
8. according to each described method among the claim 5-7, it is characterized in that: step 2) described in polar solvent exist with the form of its aqueous solution, its concentration is 200～300mL/L;
When handling step 2), the proportioning of aramid fiber and polar solvent is 1: 20～30; Said treatment temperature is 60～90 ℃, and the processing time is 60～100min.
9. according to each described method among the claim 5-8, it is characterized in that: the concentration of sodium hydroxide solution described in the step 3) is 4～8g/L; During the said processing of step 3), the proportioning of flame-resistant terylene and sodium hydroxide solution is 1: 5～8.
10. according to each described method among the claim 5-9, it is characterized in that: the time 30～90min that handles described in the step 3), treatment temperature is 50～80 ℃.
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Cited By (6)
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| CN103696094A (en) * | 2013-12-27 | 2014-04-02 | 吴江市华宏纺织丝绸有限公司 | Fire-retardant sheet fabric |
| CN105442164A (en) * | 2015-05-20 | 2016-03-30 | 上海帕兰朵纺织科技发展有限公司 | Knitted fabric having flame retardant and temperature regulating function and production method thereof |
| CN105714425A (en) * | 2016-03-23 | 2016-06-29 | 河北科技大学 | Blended yarn of aramid fibres and nickel-iron fibres and preparation process for blended yarn |
| CN105780266A (en) * | 2016-05-12 | 2016-07-20 | 南通市华安袜业有限公司 | Flame-retardant polyester fiber composite textile |
| CN110644225A (en) * | 2019-10-25 | 2020-01-03 | 中芳特纤股份有限公司 | Method for cleaning para-aramid staple fibers |
| CN113622052A (en) * | 2021-08-23 | 2021-11-09 | 深圳市骏鼎达新材料股份有限公司 | Preparation method of flame-retardant monofilament and flame-retardant monofilament |
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Application publication date: 20120815 |