CN102605452A - Flame-retardant silicate fiber, coagulation bath for producing flame-retardant silicate fiber and method for preparing flame-retardant silicate fiber - Google Patents
Flame-retardant silicate fiber, coagulation bath for producing flame-retardant silicate fiber and method for preparing flame-retardant silicate fiber Download PDFInfo
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- CN102605452A CN102605452A CN2012100652487A CN201210065248A CN102605452A CN 102605452 A CN102605452 A CN 102605452A CN 2012100652487 A CN2012100652487 A CN 2012100652487A CN 201210065248 A CN201210065248 A CN 201210065248A CN 102605452 A CN102605452 A CN 102605452A
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- retardant
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- flame
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- coagulating bath
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 86
- 239000000835 fiber Substances 0.000 title claims abstract description 47
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000015271 coagulation Effects 0.000 title claims description 7
- 238000005345 coagulation Methods 0.000 title claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title abstract description 24
- 229920000297 Rayon Polymers 0.000 claims abstract description 40
- 230000001112 coagulating effect Effects 0.000 claims abstract description 38
- 229920002678 cellulose Polymers 0.000 claims abstract description 29
- 239000001913 cellulose Substances 0.000 claims abstract description 29
- 238000009987 spinning Methods 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000007670 refining Methods 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 27
- 238000002360 preparation method Methods 0.000 claims description 13
- FPVGTPBMTFTMRT-NSKUCRDLSA-L fast yellow Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C(N)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 FPVGTPBMTFTMRT-NSKUCRDLSA-L 0.000 claims description 12
- 239000006166 lysate Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 6
- 230000035800 maturation Effects 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract description 2
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000012991 xanthate Substances 0.000 abstract 1
- 239000011686 zinc sulphate Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000012757 flame retardant agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000019795 sodium metasilicate Nutrition 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000007380 fibre production Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
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- Artificial Filaments (AREA)
Abstract
The invention discloses a flame-retardant silicate fiber, a coagulating bath for producing the flame-retardant silicate fiber and a method for preparing the flame-retardant silicate fiber, wherein the forming coagulating bath of the silicate fiber contains H2SO4、ZnSO4、Na2SO4And a silicon flame retardant, wherein the method comprises the steps of (1) preparing cellulose xanthate viscose by taking cellulose pulp as a raw material, adding a precursor dissolving solution of the dissolved flame retardant, and filtering, curing and defoaming the solution to prepare the flame-retardant spinning viscose. (2) And (3) solidifying and forming the flame-retardant spinning viscose in a four-component solidifying bath, and then performing drawing, refining and drying to obtain the flame-retardant viscose fiber. The invention adopts four-component coagulating bath to spin the flame-retardant fiber, which not only can reduce the loss of the flame retardant in the strand silk, but also improves the spinnability of the spinning, improves the physical and mechanical performance index of the flame-retardant fiber and reduces the production cost of the flame-retardant viscose fiber.
Description
Technical field
The present invention relates to the viscose technical field, relate in particular to the preparation of FRC.
Background technology
Along with the progress of society and the enhancing of people's awareness of safety; Fire resistance fibre and Product Application thereof more and more receive people's attention; Especially the various vehicles that the high residential building of domestic numerous and confused construction, hotel and fast development are got up over past ten years; Anti-flammability requirement to its upholstery is also increasingly high, has quickened the development of fire resistance fibre technology greatly.Its Application Areas also from military, industry, fire-fighting development get home and spin, the vehicles and public place ornament materials etc.At present; Many in the world countries are according to the different purposes of textiles; Combustibility to fiber and goods thereof has all proposed specific requirement or restriction, and has formulated corresponding regulations: standard committee of European Union made and issued the unified material combustion performance grade scale EN13501-1 of European Union in 2002; 2004, California, USA government took the lead in passing through new fire-retardant mattress security legislation TB603, had upgraded to the new federal fire-retardant method CFR1633 of the U.S. at present, and put teeth in the whole America on July 1st, 2007; 2006, China Fire-Fighting Bureau under the Ministry of Public Security organized to set up standard GB 20286-2006 " public place fire-retardant product and assembly combustibility require and sign "; The enforcement of these standards and rules also becomes a kind of very strong driving force that the promotion flame-retarded technology is accelerated development.
The method of producing FRC at present mainly is the blend additive process; Promptly in spinning solution, add the fire retardant of silicates and other types; Obtain fire-retardant spinning solution through the blend dissolving, spinning moulding in coagulating bath makes FRC through post processing then.The coagulating bath that present production fire resistance fibre is used is the three component coagulating baths that conventional viscose is used; Like the patent No. is that the Chinese patent of ZL01129643.7 discloses a kind of fire resistance fibre and manufacturing approach thereof; The patent No. is the preparation method that the Chinese patent of ZL200310117767.4 discloses a kind of regenerated cellulose/SiO2 nano composite material; The patent No. is the preparation method that the Chinese patent of ZL200610043542.2 discloses a kind of nanometer SiO2 FRC or composite membrane; The patent No. is that the Chinese patent of ZL200610170997.0 discloses anti-flame fusion-resisting cellulose viscose and production method thereof; The patent No. is fiber and the method for silica composite fibre and the composite fibre of preparation that the Chinese patent of ZL200710014651.6 discloses the preparation high-tenacity; The patent No. is that the Chinese patent of ZL200910069275.X discloses a kind of flame retardant cellulose fiber and preparation method thereof; The patent No. is that the Chinese patent of ZL201110241388.0 discloses a kind of FRC and preparation method thereof, more than in the preparation of several kinds of fire resistance fibres, the three component coagulating baths that are sulfuric acid, zinc sulfate and sodium sulphate are mainly formed in its coagulating bath.
When using three component coagulating baths to produce FRC; Can cause fire retardant loss in a large number in coagulating bath in the spinning process; Not only influence the finished product flame retardant effect; Increase the fire resistance fibre production cost, and can influence the molding effect of viscose glue in coagulating bath, cause fire resistance fibre finished product fault, physical index variation etc.
Summary of the invention
First technical problem to be solved by this invention is: the deficiency to prior art exists provides a kind of silicon-series five-retardant fiber.
Second technical problem to be solved by this invention is: to the deficiency that prior art exists, a kind of the reduce loss of fire retardant in the spinning process, the spinnability that improves fire resistance fibre, the coagulating bath that is used to produce FRC of improving the quality of products are provided.
The 3rd technical problem to be solved by this invention is: to the deficiency of prior art existence; The loss that a kind of use can reduce fire retardant in the spinning process, the spinnability that improves fire resistance fibre, the coagulating bath of improving the quality of products are provided, the method for the FRC of preparation good flame retardation effect.
For solving above-mentioned first technical problem, technical scheme of the present invention is:
A kind of fire-retardant silicate fiber, content of cellulose is 60～90% in the said silicate fiber, with effective content SiO
2Count 10～40% silicon-series five-retardant.
For solving above-mentioned second technical problem, technical scheme of the present invention is:
Each components contents is in the coagulating bath of using during said silicate fiber moulding: H
2SO
480～150g/l, ZnSO
415～50g/l, Na
2SO
4260～350g/l, silicon-series five-retardant 0.1～1.2g/l.
Wherein, the effective content SiO of silicon-series five-retardant in the said coagulating bath
2Be 0.1～1.2g/l.
For solving above-mentioned the 3rd technical problem, technical scheme of the present invention is:
Use fire-retardant coagulating bath to prepare the method for FRC, may further comprise the steps:
(1) adopting cellulose pulp is raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; In cellulose yellow acid fat viscose glue, add the predecessor lysate of fire retardant, make fire-retardant spinning viscose glue through filtration, maturation and deaeration again.
(2) said fire-retardant spinning viscose glue is being contained H
2SO
4, ZnSO
4, Na
2SO
4With coagulation forming in the four component coagulating baths of silicon-series five-retardant, make fire-retardant silicate fiber through drawing-off, refining and baking step again, each components contents is in the said coagulating bath: H
2SO
480～150g/l, ZnSO
415～50g/l, Na
2SO
4260～350g/l, silicon-series five-retardant 0.1～1.2g/l.
Wherein, the effective content SiO of silicon-series five-retardant in the said coagulating bath
2Be 0.1～1.2g/l.
Preferably, alpha cellulose content 5.0～12wt% in the said fire-retardant spinning viscose glue, fire retardant effective content SiO
2Alpha cellulose is 30～50wt% relatively, alkalinity 6.0～11.0wt%.
Preferably, said drawing-off comprises drawing-off and plasticizing drawing-off between dish, and drawing-off is respectively 25～50% and 4～20% with plasticizing drawing-off ratio between said dish.
As a kind of improvement, contain the SiO of 0.1～1.2g/l in the plasticizing-bath during said plasticizing drawing-off
2
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
The present invention is directed to the fire retardant losing issue that exists in the existing FRC production, propose to adopt four component coagulating baths spinning fire resistance fibre, add flame retardant compositions in the coagulating bath; Through regulating flame retardant agent content in the coagulating bath, make that the fire retardant in the flame retardant agent content and strand reaches dynamic equilibrium in the coagulating bath, not only can reduce the loss of fire retardant in the spinning process strand; Guaranteed the flame retardant effect of fire resistance fibre; And improved the spinning spinnability, and improved the physical and mechanical properties index of fire resistance fibre, stablized product quality; Also reduce the production cost of FRC, efficiently solved flame retardant agent content problem of unstable in the FRC.
It is simple, easy to operate that four component coagulating baths provided by the invention prepare the fire resistance fibre production method; And the anti-flaming viscose that the method is produced is because flame retardant agent content is stable, mechanical performance index is good, therefore high temperature resistant, wash resistant, sun-resistant, good flame retardation effect, not fusion drippage when meeting fire burns and charing only takes place; And have from putting out effect; After leaving burning things which may cause a fire disaster, do not glow, can keep the original form of fiber after the charing; The phenomenon of having avoided the high-temperature fusion dropping that the people is scalded can be widely used in that family is spun, the vehicles and public place ornament materials, hospital, army, fire-fighting domain etc.
The SiO that contains 0.1～1.2g/l in the plasticizing-bath of the present invention when the plasticizing drawing-off
2, fire resistance fibre is drawing-off once more in the coagulating bath that contains fire retardant, prevent not have moulding completely the fire retardant in the strand run off once more, can better guarantee the flame retardant effect and the physical and mechanical properties of fire resistance fibre.
The specific embodiment
Below in conjunction with concrete embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do 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 restricted portion equally.
Embodiment 1
The employing cellulose pulp is a raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; The sodium metasilicate based flame retardant joined dissolve in the good viscose solution; The predecessor lysate that stirs and make fire retardant joins the predecessor lysate of fire retardant in the cellulose yellow acid fat viscose glue, makes alpha cellulose content 5.0wt%, fire retardant effective content SiO through filtration, maturation and deaeration again
2Alpha cellulose is viscosity 30s, the employing 10%NH of 30wt%, alkalinity 6.0wt%, falling ball method mensuration relatively
4The degree of ripeness that Cl measures is the fire-retardant spinning viscose glue of 30ml.
With said fire-retardant spinning viscose glue at H
2SO
490g/l, ZnSO
415g/l, Na
2SO
4280g/l and fire retardant effective content SiO
20.3g/l four component coagulating baths in coagulation forming, drawing-off and plasticizing drawing-off through between dish successively again, drawing-off is respectively 25% and 6% with plasticizing drawing-off ratio between said dish, makes FRC through refining and baking step then.The dried fracture strength 2.00cN/dtex of the FRC that makes, wet breaking strength 1.25cN/dtex, the dried rate 22.8% of stretching, fault 0.5mg/100g, whiteness 79%, calcination residue 27.8%.
Embodiment 2
The employing cellulose pulp is a raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; The sodium metasilicate based flame retardant joined dissolve in the good viscose solution; The predecessor lysate that stirs and make fire retardant joins the predecessor lysate of fire retardant in the cellulose yellow acid fat viscose glue, makes alpha cellulose content 7.5wt%, fire retardant effective content SiO through filtration, maturation and deaeration again
2Alpha cellulose is viscosity 40s, the employing 10%NH of 40wt%, alkalinity 7.0wt%, falling ball method mensuration relatively
4The degree of ripeness that Cl measures is the fire-retardant spinning viscose glue of 20ml.
With said fire-retardant spinning viscose glue at H
2SO
4110g/l, ZnSO
425g/l, Na
2SO
4300g/l and fire retardant effective content SiO
20.8g/l four component coagulating baths in coagulation forming, drawing-off and plasticizing drawing-off through between dish successively again, drawing-off is respectively 30% and 10% with plasticizing drawing-off ratio between said dish, makes FRC through refining and baking step then.The dried fracture strength 1.75cN/dtex of the FRC that makes, wet breaking strength 1.06cN/dtex, the dried rate 21.5% of stretching, fault 2.5mg/100g, whiteness 78.5%, calcination residue 28.9%.
Embodiment 3
The employing cellulose pulp is a raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; The sodium metasilicate based flame retardant joined dissolve in the good viscose solution; The predecessor lysate that stirs and make fire retardant joins the predecessor lysate of fire retardant in the cellulose yellow acid fat viscose glue, makes alpha cellulose content 9.8wt%, fire retardant effective content SiO through filtration, maturation and deaeration again
2Alpha cellulose is viscosity 48s, the employing 10%NH of 45wt%, alkalinity 10.0wt%, falling ball method mensuration relatively
4The degree of ripeness that Cl measures is the fire-retardant spinning viscose glue of 20ml.
With said fire-retardant spinning viscose glue at H
2SO
4140g/l, ZnSO
440g/l, Na
2SO
4320g/l and fire retardant effective content SiO
21.2g/l four component coagulating baths in coagulation forming, drawing-off and plasticizing drawing-off through between dish successively again, drawing-off is respectively 45% and 20% with plasticizing drawing-off ratio between said dish, contains the SiO of 1.2g/l in the plasticizing-bath during said plasticizing drawing-off
2, make FRC through refining and baking step then.The dried fracture strength 1.58cN/dtex of the FRC that makes, wet breaking strength 0.92cN/dtex, the dried rate 23.5% of stretching, fault 4.1mg/100g, whiteness 78%, calcination residue 30.8%.
Embodiment 4
The employing cellulose pulp is a raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; The sodium metasilicate based flame retardant joined dissolve in the good viscose solution; The predecessor lysate that stirs and make fire retardant joins the predecessor lysate of fire retardant in the cellulose yellow acid fat viscose glue, makes alpha cellulose content 12wt%, fire retardant effective content SiO through filtration, maturation and deaeration again
2Alpha cellulose is viscosity 40s, the employing 10%NH of 50wt%, alkalinity 9.0wt%, falling ball method mensuration relatively
4The degree of ripeness that Cl measures is the fire-retardant spinning viscose glue of 25ml.
With said fire-retardant spinning viscose glue at H
2SO
4120g/l, ZnSO
430g/l, Na
2SO
4290g/l and fire retardant effective content SiO
21.0g/l four component coagulating baths in coagulation forming, drawing-off and plasticizing drawing-off through between dish successively again, drawing-off is respectively 40% and 10% with plasticizing drawing-off ratio between said dish, contains the SiO of 1.0g/l in the plasticizing-bath during said plasticizing drawing-off
2, make FRC through refining and baking step then.The dried fracture strength 1.39cN/dtex of the FRC that makes, wet breaking strength 0.75cN/dtex, the dried rate 24.5% of stretching, fault 6.0mg/100g, whiteness 78.2%, calcination residue 33.6%.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
All are from design of the present invention, and the structure conversion of having done without creative work all drops within protection scope of the present invention.
Claims (8)
1. fire-retardant silicate fiber, it is characterized in that: content of cellulose is 60～90% in the said silicate fiber, with effective content SiO
2Count 10～40% silicon-series five-retardant.
2. be used to produce the coagulating bath of fire-retardant silicate fiber as claimed in claim 1, it is characterized in that: each components contents is in the coagulating bath of using during said silicate fiber moulding: H
2SO
480～150g/l, ZnSO
415～50g/l, Na
2SO
4260～350g/l, silicon-series five-retardant 0.1～1.2g/l.
3. the coagulating bath that is used to produce fire-retardant silicate fiber as claimed in claim 2 is characterized in that: the effective content SiO of silicon-series five-retardant in the said coagulating bath
2Be 0.1～1.2g/l.
4. use coagulating bath as claimed in claim 2 to prepare the method for fire-retardant silicate fiber, it is characterized in that may further comprise the steps:
(1) adopting cellulose pulp is raw material; Through comprising that dipping, squeezing, pulverizing, experienced, yellow step make cellulose yellow acid fat viscose glue; The predecessor lysate that in cellulose yellow acid fat viscose glue, adds fire retardant, more after filtration, maturation and deaeration make fire-retardant spinning viscose glue;
(2) said fire-retardant spinning viscose glue is being contained H
2SO
4, ZnSO
4, Na
2SO
4With coagulation forming in the four component coagulating baths of silicon-series five-retardant, make fire-retardant silicate fiber through drawing-off, refining and baking step again, each components contents is in the said coagulating bath: H
2SO
480～150g/l, ZnSO
415～50g/l, Na
2SO
4260～350g/l, silicon-series five-retardant 0.1～1.2g/l.
5. the method for the fire-retardant silicate fiber of preparation as claimed in claim 4 is characterized in that: the effective content SiO of silicon-series five-retardant in the said coagulating bath
2Be 0.1～1.2g/l.
6. the method for the fire-retardant silicate fiber of preparation as claimed in claim 4 is characterized in that: alpha cellulose content 5.0～12wt% in the said fire-retardant spinning viscose glue, fire retardant effective content SiO
2Alpha cellulose is 30～50wt% relatively, alkalinity 6.0～11.0wt%.
7. like the method for claim 4, the fire-retardant silicate fiber of 5 or 6 described preparations, it is characterized in that: said drawing-off comprises drawing-off and plasticizing drawing-off between dish, and drawing-off is respectively 25～50% and 4～20% with plasticizing drawing-off ratio between said dish.
8. the method for the fire-retardant silicate fiber of preparation as claimed in claim 7 is characterized in that: the SiO that contains 0.1～1.2g/l in the plasticizing-bath during said plasticizing drawing-off
2
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| CN201210065248.7A CN102605452B (en) | 2012-03-13 | 2012-03-13 | Flame-retardant silicate fiber, coagulation bath for producing flame-retardant silicate fiber and method for preparing flame-retardant silicate fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899733A (en) * | 2012-11-12 | 2013-01-30 | 唐山三友集团兴达化纤有限公司 | Sodium silicate cellulosic fiber and preparation method thereof |
| CN105220255A (en) * | 2015-10-20 | 2016-01-06 | 恒天海龙股份有限公司 | Fire-retardant regenerated celulose fibre of Bepaint inorganic and preparation method thereof |
| CN109487362A (en) * | 2018-11-30 | 2019-03-19 | 山传雷 | A kind of inorganic fire-retarded phase-change energy-storage fibre cellulose fiber and preparation method thereof |
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|---|---|---|---|---|
| US2781275A (en) * | 1951-05-12 | 1957-02-12 | American Enka Corp | Viscose solution and method of spinning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102899733A (en) * | 2012-11-12 | 2013-01-30 | 唐山三友集团兴达化纤有限公司 | Sodium silicate cellulosic fiber and preparation method thereof |
| CN105220255A (en) * | 2015-10-20 | 2016-01-06 | 恒天海龙股份有限公司 | Fire-retardant regenerated celulose fibre of Bepaint inorganic and preparation method thereof |
| CN109487362A (en) * | 2018-11-30 | 2019-03-19 | 山传雷 | A kind of inorganic fire-retarded phase-change energy-storage fibre cellulose fiber and preparation method thereof |
| CN109487362B (en) * | 2018-11-30 | 2021-06-15 | 青岛邦特生态纺织科技有限公司 | Inorganic flame-retardant phase-change energy-storage cellulose fiber and preparation method thereof |
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| CN102605452B (en) | 2014-08-13 |
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