CN110172750A - A kind of high mode and low mode type flame-resistant terylene industrial yarn preparation method - Google Patents
A kind of high mode and low mode type flame-resistant terylene industrial yarn preparation method Download PDFInfo
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- CN110172750A CN110172750A CN201910448026.5A CN201910448026A CN110172750A CN 110172750 A CN110172750 A CN 110172750A CN 201910448026 A CN201910448026 A CN 201910448026A CN 110172750 A CN110172750 A CN 110172750A
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- methylene phosphonic
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
Abstract
The present invention relates to macromolecular fibre production technical fields, more particularly to a kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn.The present invention, which mainly passes through, chooses specific material, macromolecule phosphorus flame retardant, high viscous PET slice are mixed, and control the important parameters such as the viscosity of mixture, phosphorus content, then actual parameter control is carried out in each spinning link, including temperature, winding speed etc., high-strength flame-resistant terylene industrial yarn is finally obtained.It is an advantage of the invention that the spinning oil used has good rub resistance, coherent in production terylene industrial yarn spinning oil agent, the generation stretched with lousiness in rear weaving process can be greatly reduced, intensity is high, halogen-free environmental, the features such as flame retardant property is good, and spinning lousiness is few.
Description
Technical field
The invention belongs to macromolecular fibre production technical fields, more particularly to a kind of high mode and low mode type flame-resistant terylene industry
Silk preparation method.
Background technique
High mode and low mode type flame-resistant terylene industrial yarn is mainly used in tyre cord, mine conveying belt, and automobile-used sebific duct etc. is wanted
Ask intensity high, good stability of the dimension, wearability is good, excellent fireproof performance.
The limit oxygen index LOI of terylene is generally 20%-22%, belongs to combustible material, occurs to dive brought by fire
It also becomes increasingly conspicuous in danger.Current terylene both domestic and external is flame-retardant modified mainly (main using the fire retardant of phosphorus system as modifying agent
It is based on copolymerization addition CEPPA), a large amount of combustion heat is generated in combustion using the phosphorus-containing groups of phosphorus flame retardant, is made
Polyester melt reduces kinematic viscosity and generates melting drippage, takes away heat, and put out using the effect of the radical-scavenging of phosphonium flame retardant
It puts out a fire flame, reaches fire-retardant purpose, it is fire-retardant that fire retardant mechanism is that molten drop takes away heat.Generally have before spinning winding dip-coating fire retardant and
Modified method is sliced to prepare flame-resistant terylene industrial yarn；Using the method for yarn dip-coating fire retardant before winding, since it only exists
Yam surface contains fire retardant, in rear weaving, due to by high temperature, solvent, the influence of the processes such as friction, fire retardant during arrangement
Easily by damage sledge, the flame retardant property of fabric is affected, and flame retardant property reduces as time goes by.
Using the modified production CEPPA phosphorous flame-retardant slice of PET, fire retardant belongs to low-molecular material, although slice IV value is logical
The method for crossing solid-phase tack producing reaches 1.0~1.2dl/g, but is sliced crystallization temperature and fusing point and is intended to low, spinning than pure PET slice
Molecule thermal degradation is serious in journey, to affect spinnability and tensile property.The method oxygen index (OI) (LOI) of current application CEPPA
32% flame-resistant terylene industrial yarn maximum intensity generally in 6.5cN/dtex or so, hence it is evident that be lower than existing high-strength non-flame resistant terylene
Industrial yarn, and lousiness, broken end are also apparently higher than the non-flame resistant polyester industrial yarn of similar product.Due to the low and lousiness of intensity
It is more, the cost and difficulty of rear road application are increased, to limit the development of industry.
Phosphorus flame retardant is the most effective environment friendly flame retardant of terylene, and the processing method that fire retardant introduces can be divided mainly into altogether
Poly- modification and blending and modifying process route.Modification by copolymerization is to utilize small molecule fire retardant and polyester monocase with reactive functional groups
Copolyreaction is carried out, introduces fire-retardant group in polyester molecule chain.This method is more stable with product quality, adds fire retardant
Less, the more durable advantage of flame retardant effect.But the introducing of reactive phosphorus flame retardant can destroy the rule of polyester macromolecule chain structure
Integer, to influence crystal property and anti-hydrolytic performance of polyester fiber etc., eventually lead to product heat resistance, mechanical property and
The significant decrease of the performances such as resistance to ag(e)ing.
Blending and modifying is fire retardant and polyester slice or melt to be carried out melt blending, then obtain fire resistance fibre through spinning.
This method has better flexibility and diversity, but be easily precipitated with fire retardant bad dispersibility in the polyester, fire retardant,
The disadvantages such as poor, the spinnability difference of durability of fire-retardant, to limit its application in polyester fiber.
Polyphosphate polymer masterbatch selected by this patent has the characteristics that phosphorus content is high, good with polyester compatibility, overcomes
Blending modification method fire retardant bad dispersibility is easily precipitated, the disadvantages of durability is poor, spinnability is poor, prepared flame-resistant terylene work
Industry long filament has the characteristics that intensity is high, flame retardant property is good, ageing-resistant.
Summary of the invention
The invention proposes a kind of slices being blended using supra polymer phosphorus flame retardant with PET, obtain through melting spinning
A kind of high mode and low mode type flame-resistant terylene industrial yarn, it includes the characteristics of have；Intensity is high, and halogen-free environmental, flame retardant property is good, spinning
The features such as lousiness is few.
A kind of high mode and low mode type flame-resistant terylene industrial yarn Denier range of the present invention include: 840dtex~
3000dtex, thickness (fiber number/hole count) DPF range of individual thread include 2~10 polyester industrial yarn.Its breaking strength range:
6.0~7.5cN/dtex, extension at break range: 10.0~20.0%, intermediate elongation (@4.0cN/dtex): 4.5~6.5%；It is dry
Percent thermal shrinkage (177 DEG C of * 10min*0.05cN/dtex): 2.0~4.0%, limit oxygen index (LOI) >=32.0%.
The present invention is achieved by following technical proposals:
A kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn, which is characterized in that include the following steps:
(1) raw material is selected
Component A: macromolecule phosphorus flame retardant, design parameter are as follows: molecular weight 40000~100000, phosphorus content: 8~12%,
Tg；100~105 DEG C；The macromolecule phosphorus flame retardant is a kind of containing polyphosphonate carbonates altogether, and polyphosphonates are copolymerized phosphine
Acid esters it is one or more, be formed by scion grafting to PET strand；The control of its middle-molecular-weihydroxyethyl is 60000~70000 for most
It is good；
Component A is mixed with fibre-grade PET slice, component A accounts for the mass ratio of raw material after mixing are as follows: 5~10%；Wherein
The inherent viscosity of fibre-grade PET slice are as follows: 0.66~0.68dl/g；The mass content of COOH is 24~32mol/ tons；The matter of DEG
Measuring content is 0.8~1.0%；Component A accounts for the mass ratio of raw material after mixing are as follows: effect when 7~8% is more preferable；
(2) solid-phase tack producing: by the mixed material in step (1), by pre- in continous way solid-phase tack producing device or rotary drum
Heat, solid-phase tack producing, until the inherent viscosity of mixed material after processing is the PET fire-retardant slice of 1.10~1.20dl/g；And group
Dividing mass content of the A in mixed material is 5%~10%, 5000~9000PPM of phosphorus content therein；Phosphorus content therein
6000~8000PPM is more preferably；
(3) melting process: by step (2) through dry feedstock in N2Under protection, to original within the scope of 265 DEG C~310 DEG C
Material carries out heating melting, enters back into spinning manifold, and the temperature of spinning manifold is controlled at 265 DEG C~310 DEG C；
(4) measure spinning process: the melt through abundant melting carries out spinning by metering pump；Melt warp through abundant melting
It crosses metering pump and requires accurate measurement according to the fiber number of setting, metering pump speed is calculated according to institute's textile product fiber number and spinning speed；
(5) be cooled and shaped: the spinning sprayed through spinneret orifice carries out being cooled to tow, cooling wind control temperature through ring blowing cooling wind
Degree is 40~65 DEG C；；
(6) drawing process: carrying out stretching and thermal finalization for tow after cooling, stretches total multiplying power 1.5~3.0, sizing temperature
235 DEG C~260 DEG C of degree；To reach desired strength, elongation is xeothermic every object then data such as to shrink.
(7) winding process: control winding speed 4000m/min~6500m/min.Using the high-speed winding of TMT fork type
The characteristics of tow after stretching directly on paper tube, is had package beautiful by aspect, even tension.
Preferably, the melting of the step of preparation method of above-mentioned high mode and low mode type flame-resistant terylene industrial yarn (4) a kind of
In the process, spinning manifold is heated with biphenyl.
Preferably, the stretching of the step of preparation method of above-mentioned high mode and low mode type flame-resistant terylene industrial yarn (6) a kind of
Cheng Qian is crossed, is oiled to tow, the finish is by monohydric alcohol fatty acid, polyol fatty acid, organic phosphate, dimethyl-silicon
Oxygen alkane or polysiloxanes, potassium oleate, fatty acid composition, the mass ratio of each component are as follows:
Organic phosphate therein are as follows: methylene phosphonic acid potassium, methylene phosphonic acid sodium, methylene phosphonic acid magnesium, di 2 ethylhexyl phosphonic acid potassium, three
Phosphonic acids potassium, tetra methylene phosphonic acid potassium, penta methylene phosphonic acid potassium, di 2 ethylhexyl phosphonic acid sodium, tri methylene phosphonic acid sodium, tetra methylene phosphonic acid sodium, penta methylene phosphonic acid sodium, di 2 ethylhexyl phosphonic acid magnesium, tri methylene phosphonic acid
One or more of magnesium, tetra methylene phosphonic acid magnesium, penta methylene phosphonic acid magnesium.
As more preferably selecting, the composition of finish and the mass ratio of each component are as follows:
Organic phosphate therein are as follows: one of methylene phosphonic acid potassium, di 2 ethylhexyl phosphonic acid potassium, penta methylene phosphonic acid potassium.
Preferably, the step of preparation method of above-mentioned a kind of high mode and low mode type flame-resistant terylene industrial yarn (6), stretched
Cheng Hou makes tow generate network node on tow by network nozzle under the action of level pressure sky.
High molecular weight flame retardant described in the fire-retardant slice that the present invention uses is a kind of macromolecule containing P elements, it is high
Can react with molten originally crosslink of PET when temperature melting, graft it completely in PET molecule, fusing point has reached 255 DEG C, and
The fusing point of existing CEPPA fire-retardant slice is only 238 DEG C.The thermal degradation rate of PET at high temperature can be made to decline to a great extent, it is resulting
Melt has excellent tension property and heat resistance.
The utility model has the advantages that the spinning oil that the present invention uses be with foreign vendor cooperative development it is special in production terylene industrial
Yarn spinning oil agent, has good rub resistance, and coherent can greatly reduce the production stretched with lousiness in rear weaving process
It is raw.
Specific embodiment
Implementation of the invention is illustrated below:
Embodiment 1
Raw material is determined first:
Component A: macromolecule phosphorus flame retardant, design parameter are as follows: molecular weight 40000~100000, phosphorus content: 8~12%,
Tg；100~105 DEG C；The macromolecule phosphorus flame retardant is a kind of containing polyphosphonate carbonates altogether, and polyphosphonates are copolymerized phosphine
Acid esters it is one or more, be formed by scion grafting to PET strand；
Component A is mixed with common PET slice, component A accounts for the mass ratio of raw material after mixing are as follows: 7~10%；It is wherein general
The inherent viscosity of logical PET slice are as follows: 0.66~0.68dl/g；
(2) solid-phase tack producing: by the mixed material in step (1), by pre- in continous way solid-phase tack producing device or rotary drum
Heat, solid-phase tack producing, until the inherent viscosity of PET fire-retardant slice after processing is 1.10~1.20dl/g；And component A is in mixture
Mass content in material is 5%~10%, 5000~9000PPM of phosphorus content therein；
(3) melting process: by step (2) through dry feedstock in N2Under protection, to original within the scope of 265 DEG C~310 DEG C
Material carries out heating melting, enters back into spinning manifold, and the temperature of spinning manifold is controlled at 280~300 DEG C；
(4) measure spinning process: the melt through abundant melting carries out spinning by metering pump；
(5) be cooled and shaped: the spinning sprayed through spinneret orifice carries out being cooled to tow, cooling wind control temperature through ring blowing cooling wind
Degree is 40~65 DEG C；
(6) drawing process: carrying out stretching and thermal finalization for tow after cooling, stretches total multiplying power 1.5~3.0, sizing temperature
235 DEG C~260 DEG C of degree；
(7) winding process: control winding speed 4000m/min~6500m/min.Speed control in winding process is direct
The last performance of product is influenced, although this speed may be implemented, to the causality between the speed and properties of product
The prior understanding of technical staff is needed, can just go to realize the speed consciously.
A kind of high mode and low mode type flame-resistant terylene industry yarn production method
By product obtained by this method, the result through detecting is as follows:
This it appears that its intensity of flame-resistant terylene industrial yarn produced by the invention is apparently higher than and is hindered using CEPPA from table
The polyester industrial yarn of combustion slice spinning.
Embodiment 2-6
In embodiment, it before the drawing process of step (6), oiling to tow, the finish is sour by monohydric alcohol fatty,
Polyol fatty acid, organic phosphate, dimethyl siloxane or polysiloxanes, potassium oleate, fatty acid composition, the quality of each component
Ratio is as follows:
Above-described embodiment 2 --- 6 through testing acquired results, compared with existing product, has better performance.Wherein implement
The comprehensive performance of example 6 is best.
Organic phosphate therein are as follows: methylene phosphonic acid potassium, methylene phosphonic acid sodium, methylene phosphonic acid magnesium, di 2 ethylhexyl phosphonic acid potassium, three
Phosphonic acids potassium, tetra methylene phosphonic acid potassium, penta methylene phosphonic acid potassium, di 2 ethylhexyl phosphonic acid sodium, tri methylene phosphonic acid sodium, tetra methylene phosphonic acid sodium, penta methylene phosphonic acid sodium, di 2 ethylhexyl phosphonic acid magnesium, tri methylene phosphonic acid
One or more of magnesium, tetra methylene phosphonic acid magnesium, penta methylene phosphonic acid magnesium.
Further, after step (6) drawing process, tow is made under the action of level pressure sky by network nozzle to tow
Network node is generated, the coherent of tow can be increased.
Claims (5)
1. a kind of high mode and low mode type flame-resistant terylene industrial yarn preparation method, which is characterized in that include the following steps:
(1) raw material is selected
Component A: macromolecule phosphorus flame retardant, design parameter are as follows: molecular weight 40000~100000, phosphorus content: 8~12%, Tg；
100~105 DEG C；The macromolecule phosphorus flame retardant is a kind of containing polyphosphonate carbonates altogether, and polyphosphonates are copolymerized phosphonate ester
It is one or more, be formed by scion grafting to PET strand；
Component A is mixed with fibre-grade PET slice, component A accounts for the mass ratio of raw material after mixing are as follows: 5~10%；Wherein fiber
The inherent viscosity of level PET slice are as follows: 0.66~0.68dl/g；The mass content of COOH is 24~32mol/ tons；The quality of DEG contains
Amount is 0.8~1.0%；
(2) solid-phase tack producing: by the mixed material in step (1), by preheating in continous way solid-phase tack producing device or rotary drum, Gu
It mutually viscosifies, until the inherent viscosity of mixed material after processing is the PET fire-retardant slice of 1.10~1.20dl/g；And component A exists
Mass content in mixed material is 5%~10%, 5000~9000PPM of phosphorus content therein；
(3) melting process: by step (2) through dry feedstock in N2Under protection, raw material is carried out within the scope of 265 DEG C~310 DEG C
Melting is heated, is entered back into spinning manifold, the temperature of spinning manifold is controlled at 265~310 DEG C；
(4) measure spinning process: the melt through abundant melting carries out spinning by metering pump；
(5) be cooled and shaped: the spinning sprayed through spinneret orifice be cooled to tow by ring blowing cooling wind, cooling wind controlled at
40~65 DEG C；
(6) drawing process: tow after cooling is subjected to stretching and thermal finalization, stretches total multiplying power 1.5~3.0, setting temperature 235
DEG C~260 DEG C；
(7) winding process: control winding speed 4000m/min~6500m/min.
2. a kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn according to claim 1, which is characterized in that step
Suddenly during the melting of (3), spinning manifold is heated with biphenyl.
3. a kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn according to claim 1, which is characterized in that step
Suddenly it before the drawing process of (6), oils to tow, the finish is by monohydric alcohol fatty acid, polyol fatty acid, organic phosphoric acid
Salt, dimethyl siloxane or polysiloxanes, potassium oleate, fatty acid composition, the mass ratio of each component are as follows:
Organic phosphate therein are as follows: methylene phosphonic acid potassium, methylene phosphonic acid sodium, methylene phosphonic acid magnesium, di 2 ethylhexyl phosphonic acid potassium, tri methylene phosphonic acid
Potassium, tetra methylene phosphonic acid potassium, penta methylene phosphonic acid potassium, di 2 ethylhexyl phosphonic acid sodium, tri methylene phosphonic acid sodium, tetra methylene phosphonic acid sodium, penta methylene phosphonic acid sodium, di 2 ethylhexyl phosphonic acid magnesium, tri methylene phosphonic acid magnesium, four
One or more of phosphonic acids magnesium, penta methylene phosphonic acid magnesium.
4. a kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn according to claim 3, which is characterized in that institute
The mass ratio of the composition and each component of stating finish is as follows:
Organic phosphate therein are as follows: one of methylene phosphonic acid potassium, di 2 ethylhexyl phosphonic acid potassium, penta methylene phosphonic acid potassium.
5. a kind of preparation method of high mode and low mode type flame-resistant terylene industrial yarn according to claim 1, which is characterized in that step
After (7) drawing process, so that tow is generated network node under the action of level pressure sky by network nozzle on tow suddenly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910448026.5A CN110172750A (en) | 2019-05-27 | 2019-05-27 | A kind of high mode and low mode type flame-resistant terylene industrial yarn preparation method |
| PCT/CN2020/090921 WO2020238688A1 (en) | 2019-05-27 | 2020-05-18 | Preparation method for high-modulus, low-shrinkage and flame retardant polyester industrial filament |
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| CN201910448026.5A CN110172750A (en) | 2019-05-27 | 2019-05-27 | A kind of high mode and low mode type flame-resistant terylene industrial yarn preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110528109A (en) * | 2019-08-28 | 2019-12-03 | 无锡索力得科技发展有限公司 | A kind of high-strength fire-retarding polyester industrial yarn and preparation method thereof |
| WO2020238688A1 (en) * | 2019-05-27 | 2020-12-03 | 浙江海利得新材料股份有限公司 | Preparation method for high-modulus, low-shrinkage and flame retardant polyester industrial filament |
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| CN102675618A (en) * | 2005-08-11 | 2012-09-19 | Frx聚合物股份有限公司 | Poly (block-phosphonato-ester) and poly (block-phosphonato-carbonate) and methods of making same |
| CN104603176A (en) * | 2012-06-29 | 2015-05-06 | Frx聚合物股份有限公司 | Polyester co-phosphonates |
| CN102912640A (en) * | 2012-10-25 | 2013-02-06 | 上虞市皇马化学有限公司 | Crude-oil polyester industrial yarn finish and preparation method thereof |
| CN102995155A (en) * | 2012-12-15 | 2013-03-27 | 浙江海利得新材料股份有限公司 | Activated high-modulus low-shrinkage polyester industrial yarn and preparation method of same |
| CN105862152A (en) * | 2016-06-06 | 2016-08-17 | 浙江尤夫高新纤维股份有限公司 | Production method for high-speed spinning low-stretching high-modulus low-shrinkage polyester industrial filaments |
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| WO2020238688A1 (en) * | 2019-05-27 | 2020-12-03 | 浙江海利得新材料股份有限公司 | Preparation method for high-modulus, low-shrinkage and flame retardant polyester industrial filament |
| CN110528109A (en) * | 2019-08-28 | 2019-12-03 | 无锡索力得科技发展有限公司 | A kind of high-strength fire-retarding polyester industrial yarn and preparation method thereof |
| CN110528109B (en) * | 2019-08-28 | 2021-02-19 | 江苏索力得新材料集团有限公司 | High-strength flame-retardant polyester industrial yarn and preparation method thereof |
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