CN114351465A - Method for coating aramid 1414 fibers with PEEK - Google Patents

Method for coating aramid 1414 fibers with PEEK Download PDF

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Publication number
CN114351465A
CN114351465A CN202111618693.7A CN202111618693A CN114351465A CN 114351465 A CN114351465 A CN 114351465A CN 202111618693 A CN202111618693 A CN 202111618693A CN 114351465 A CN114351465 A CN 114351465A
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Prior art keywords
flame
peek
ether
aramid
ketone
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CN202111618693.7A
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Chinese (zh)
Inventor
马海燕
徐锦锦
马海军
杨西峰
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Nantong Ntec Monofilament Technology Co ltd
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Nantong Ntec Monofilament Technology Co ltd
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Priority to CN202111618693.7A priority Critical patent/CN114351465A/en
Publication of CN114351465A publication Critical patent/CN114351465A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/41—Phenol-aldehyde or phenol-ketone resins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/44—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen containing nitrogen and phosphorus
    • D06M13/453—Phosphates or phosphites containing nitrogen atoms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D06M2101/36—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/30—Flame or heat resistance, fire retardancy properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/35—Abrasion, pilling or fibrillation resistance

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a method for coating aramid 1414 fibers with PEEK, which comprises the steps of preparing a melt-drip-resistant flame-retardant polyether-ether-ketone master batch, preparing PEEK-coated aramid 1414 fibers and the like. The PEEK coated aramid fiber prepared by the invention can be used as a framework material of a conveyer belt, and can endow the conveyer belt with excellent flame retardance, high temperature resistance, wear resistance, high strength and low elongation. Meanwhile, the aramid multifilament is filamentized by a coating method, so that the problem that broken filaments are easily generated is solved. Melamine polyphosphate and octaphenyl cage type silsesquioxane are used as an intumescent flame retardant to prepare the melt-drip-resistant flame-retardant polyether-ether-ketone master batch, so that the phenomenon of melt drip generated during combustion is inhibited on the basis of good PEEK flame retardance, and the flame retardance of the PEEK is further improved.

Description

Method for coating aramid 1414 fibers with PEEK
Technical Field
The invention relates to a method for coating aramid 1414 fibers with PEEK.
Background
The belt serves to transport articles and is a composite article generally composed of a belt core skeleton structure and a cover layer (glue). The cored skeletal material is typically a fiber, metal or fabric, and the matrix material is typically rubber or plastic. The influence of the belt core framework on the tensile property, the elongation property and the bearing capacity of the conveying belt is very large. With the increase of conveying materials, the requirements on conveying belts, particularly high-strength conveying belts, are increasing, the quality requirements are also increasing, and the requirements on framework materials are continuously increased due to the development of high strength, high load, long distance and long service life.
With the increase of conveying materials, the requirements on conveying belts, particularly high-strength conveying belts, are increasing, the quality requirements are also increasing, and the requirements on framework materials are continuously increased due to the development of high strength, high load, long distance and long service life. The fiber materials used by the prior conveying belt are mainly nylon and terylene, so that the use limitation is more.
The aramid 1414 fibers are filaments and multifilaments, and are easy to generate broken filaments during use. Although PEEK has a high limiting oxygen index, a vertical burn test rating of V-0, PEEK materials, particularly oriented materials, including fibers, fabrics, films, etc., are susceptible to melt dripping in the event of a fire. This kind of reaction of meeting a fire, which takes away heat and kindling through surface quality loss, not only exposes more materials to the flame, but also can produce secondary disasters.
Disclosure of Invention
The invention aims to provide a method for coating aramid 1414 fibers with PEEK, which has good product performance and is convenient to manufacture.
The technical solution of the invention is as follows:
a method for coating aramid 1414 fibers with PEEK is characterized in that: comprises the following steps:
preparing melt-drip-resistant flame-retardant polyether-ether-ketone master batch:
(1) mixing polyether-ether-ketone, octaphenyl cage-type silsesquioxane and melamine polyphosphate according to the following mass percent, and uniformly dispersing a flame retardant by adopting a high-speed stirrer;
50-70wt% of polyether-ether-ketone
Octaphenyl cage type silsesquioxane 5-15wt%
25-35wt% of melamine polyphosphate;
(2) adding the mixture obtained in the step (1) into a five-section heating double-screw extruder, extruding, controlling the first-zone temperature to be 280 ℃, the second-zone temperature to be 360 ℃, the third-zone temperature to be 365 ℃, the fourth-zone temperature to be 370 ℃, the fifth-zone temperature to be 375 ℃, and the screw rotating speed to be 80 r/min, and granulating by using a granulator after extruding from a machine head to obtain the flame-retardant polyether-ether-ketone granules;
the flame-retardant PEEK composite material is prepared by introducing two nano flame retardants into a PEEK resin matrix through melt blending, high-temperature hot pressing and other modes, wherein the two nano flame retardants are selected to serve as intumescent flame retardants, the melamine polyphosphate (MPP) contains flame-retardant elements such as P, N and the like, NH3 can be generated during thermal decomposition, the flame-retardant PEEK composite material can play a role in diluting oxygen and combustible gas concentrations, and meanwhile, a generated phosphoric acid product can cover the surface of the material in a liquid film form to form a protective layer.
(II) preparation of PEEK-coated aramid 1414 fiber:
(1) preparing untwisted aramid 1414 filaments; (note: the gaps among the filaments of the untwisted aramid 1414 filaments are larger, which is beneficial for PEEK melt to enter the internal structure and improves the adhesive force between the coating and the substrate);
(2) adding the flame-retardant polyether-ether-ketone master batches and the high-temperature organic silicon lubricant (GPPS) which are matched according to the following mass percentage into a high-speed mixer, and fully stirring to be uniform to obtain a mixture;
80-90 wt% of flame-retardant polyether-ether-ketone master batch
10-20 wt% of high-temperature organic silicon lubricant;
(note: adding high temperature organosilicon lubricant (GPPS) into the polyether-ether-ketone melt, the melt viscosity is obviously reduced, and the crystallization behavior of the fiber during drafting is also positively influenced, and the mechanical strength and modulus of the fiber are improved.)
(3) Feeding the mixed material obtained in the step (2) into a screw extruder, performing melt extrusion, and coating the aramid 1414 filaments through a die with a corresponding size;
(4) drawing by a drawing roller at a speed of 25-60m/min, and collecting the filaments.
The screw extrusion temperature of the screw extruder was 370/375/375/380/385 ℃.
The invention provides a method for coating aramid 1414 fibers with PEEk, which is used as a framework material of a conveyor belt. As a framework material of the conveyor belt, the aramid 1414 fiber has the following advantages: firstly, the aramid 1414 fibers have the characteristics of low elongation, low creep rate, high strength and high modulus. The strength of the aramid fiber 1414 can reach 3 times that of common steel, so that the aramid fiber can replace a steel wire belt core in many occasions. And secondly, the density is low, and the framework material used as the conveying belt can greatly reduce the transportation consumption compared with steel. Thirdly, the chemical stability is good, and the size of the material used as a framework material is stable. Fourthly, the high temperature resistance is good, the high strength can be ensured under the high temperature condition, and the high temperature can reach 70 percent of the original strength under the temperature condition of 270 ℃. Polyether-ether-ketone (PEEK) is a high-performance thermoplastic resin, and is a variety with the most excellent performance in polyaryletherketone polymers. Its excellent properties include excellent mechanical strength, good toughness and rigidity, and excellent high-temp resistance, flame-retarding nature and antiwear nature. The high temperature resistance of the alloy is shown in that the alloy has higher glass transition temperature (Tg =143 ℃) and melting point (Tm =343 ℃), the load heat distortion temperature is up to 316 ℃, and the instant use temperature can be up to 300 ℃; the flame retardance is shown in a vertical combustion test grade with a higher limit oxygen index and V-0; the polyether-ether-ketone is hardly dissolved in any acid-base or organic solvent, particularly has excellent alkali resistance, is hardly influenced by high-temperature and high-pressure water vapor, and can be continuously used in the environment of high-temperature and high-pressure hot water or water vapor. The PEEK resin is coated on aramid fiber and used as a framework material of a conveyer belt, so that the conveyer belt has excellent flame retardance, high temperature resistance, wear resistance, high strength and low elongation.
According to the invention, the coating type fiber of PEEK-coated aramid 1414 fiber replaces common chinlon and polyester fiber to be used as a framework material of the conveyor belt, so that the conveyor belt has excellent flame retardance, high temperature resistance, wear resistance, high strength and low elongation; the aramid multifilament is converted into single filaments by a coating method, so that the problem that broken filaments are easily generated is solved; by preparing the melt-drip resistant flame-retardant polyether-ether-ketone master batch, the phenomenon that the PEEK is easy to melt drip is solved.
The coating layer adopts PEEK polymer, so that the fiber has the characteristics of high temperature resistance, good toughness and rigidity, high mechanical strength, good flame retardance and good wear resistance; the intumescent flame retardant is adopted to prepare the droplet-resistant flame-retardant polyether-ether-ketone master batch, and on the basis of good PEEK flame retardance, the phenomenon of droplet falling generated during combustion is inhibited; the core material adopts aramid 1414 fiber, so that the framework material of the conveyer belt is endowed with good dimensional stability, low elongation and creep property; the weight is light, and the transportation consumption is reduced; the aramid multifilament is filamentized by a coating method, so that the problem that broken filaments are easily generated is solved.
The PEEK coated aramid fiber prepared by the invention can be used as a framework material of a conveyer belt, and can endow the conveyer belt with excellent flame retardance, high temperature resistance, wear resistance, high strength and low elongation. Meanwhile, the aramid multifilament is filamentized by a coating method, so that the problem that broken filaments are easily generated is solved. Melamine polyphosphate (MPP) and octaphenyl cage type silsesquioxane (OPS) are used as an intumescent flame retardant to prepare the dripping-resistant flame-retardant polyether-ether-ketone master batch, so that the phenomenon of dripping generated during combustion of PEEK is inhibited on the basis of good flame retardance of the PEEK, and the flame retardant property of the PEEK is further improved.
The present invention will be further described with reference to the following examples.
Detailed Description
Example 1:
preparing a molten drop resistant flame-retardant polyether-ether-ketone master batch:
(1) mixing polyether-ether-ketone, octaphenyl cage-type silsesquioxane and melamine polyphosphate, and adopting a high-speed stirrer to more uniformly disperse the flame retardant;
polyether-ether-ketone 50 wt%
Octaphenyl cage silsesquioxane 5wt%
25 wt% of melamine polyphosphate
(2) Adding the mixture into a five-section heating double-screw extruder, extruding, controlling the first-zone temperature to be 260 ℃, the second-zone temperature to be 350 ℃, the third-zone temperature to be 370 ℃, the fourth-zone temperature to be 375 ℃, the fifth-zone temperature to be 370 ℃ and the screw rotation speed to be 60 r/min, and granulating by using a granulator after extruding from a machine head to obtain the flame-retardant polyether-ether-ketone granules.
Preparation of coated fibers:
(1) preparing untwisted aramid 1414 filaments;
(2) adding flame-retardant polyether-ether-ketone master batch and high-temperature organic silicon lubricant (GPPS) into a high-speed mixer, and fully stirring to make the mixture uniform
80 wt% of flame-retardant polyether-ether-ketone master batch
High temperature silicone lubricant 10 wt%
(3) Feeding the mixed material into a screw extruder, performing melt extrusion, and coating aramid 1414 filaments through a neck die with a corresponding size, wherein the screw extrusion temperature is 370/375/375/380/385 ℃;
(4) drawing by a drawing roller at the speed of 50m/min, and collecting the filaments.
Example 2:
preparing a molten drop resistant flame-retardant polyether-ether-ketone master batch:
(1) mixing polyether-ether-ketone, octaphenyl cage-type silsesquioxane and melamine polyphosphate, and adopting a high-speed stirrer to more uniformly disperse the flame retardant;
polyether-ether-ketone 60 wt%
Octaphenyl cage silsesquioxane 10 wt%
30 wt% of melamine polyphosphate
(2) Adding the mixture into a five-section heating double-screw extruder, extruding, controlling the first-zone temperature to be 260 ℃, the second-zone temperature to be 350 ℃, the third-zone temperature to be 370 ℃, the fourth-zone temperature to be 375 ℃, the fifth-zone temperature to be 370 ℃ and the screw rotation speed to be 60 r/min, and granulating by using a granulator after extruding from a machine head to obtain the flame-retardant polyether-ether-ketone granules.
Preparation of coated fibers:
(1) preparing untwisted aramid 1414 filaments;
(2) adding flame-retardant polyether-ether-ketone master batch and high-temperature organic silicon lubricant (GPPS) into a high-speed mixer, and fully stirring to make the mixture uniform
85 wt% of flame-retardant polyether-ether-ketone master batch
High temperature silicone lubricant 15wt%
(3) Feeding the mixed material into a screw extruder, performing melt extrusion, and coating aramid 1414 filaments through a neck die with a corresponding size, wherein the screw extrusion temperature is 370/375/375/380/385 ℃;
(4) drawing by a drawing roller at the speed of 50m/min, and collecting the filaments.
Example 3:
preparing a molten drop resistant flame-retardant polyether-ether-ketone master batch:
(1) mixing polyether-ether-ketone, octaphenyl cage-type silsesquioxane and melamine polyphosphate, and adopting a high-speed stirrer to more uniformly disperse the flame retardant;
polyether ether ketone 70wt%
Octaphenyl cage silsesquioxane 15wt%
35wt% of melamine polyphosphate
(2) Adding the mixture into a five-section heating double-screw extruder, extruding, controlling the first-zone temperature to be 260 ℃, the second-zone temperature to be 350 ℃, the third-zone temperature to be 370 ℃, the fourth-zone temperature to be 375 ℃, the fifth-zone temperature to be 370 ℃ and the screw rotation speed to be 60 r/min, and granulating by using a granulator after extruding from a machine head to obtain the flame-retardant polyether-ether-ketone granules.
Preparation of coated fibers:
(1) preparing untwisted aramid 1414 filaments;
(2) adding flame-retardant polyether-ether-ketone master batch and high-temperature organic silicon lubricant (GPPS) into a high-speed mixer, and fully stirring to make the mixture uniform
90 wt% of flame-retardant polyether-ether-ketone master batch
20 wt% of high temperature silicone lubricant
(3) Feeding the mixed material into a screw extruder, performing melt extrusion, and coating aramid 1414 filaments through a neck die with a corresponding size, wherein the screw extrusion temperature is 370/375/375/380/385 ℃;
(4) drawing by a drawing roller at the speed of 50m/min, and collecting the filaments.
Comparative example:
fully mixing pure polyetheretherketone slices with GPPS, feeding the mixture into a screw extruder, performing melt extrusion, and coating aramid 1414 filaments through a neck mold with a corresponding size, wherein the screw extrusion temperature is 370/375/375/380/385 ℃; drawing by a drawing roller at the speed of 50m/min, and collecting the filaments.
And (3) performance testing:
(1) breaking strength and elongation at break: according to GB/T14344-. Three samples were taken from each group and the test averaged.
Breaking strength (cN/dtex) = breaking strength/fineness
(2) And (3) molten drop test: the bar was held horizontal and the flame length was 2cm to ignite the bar. The number of droplets within 60 s of sustained ignition (or burning) was recorded.
(3) Limiting Oxygen Index (LOI): under the specified test conditions, the minimum oxygen concentration required for just maintaining the combustion of the sample in the mixed gas of oxygen and nitrogen is tested according to the test standard of GB/T5454 'test oxygen index method for textile combustion performance test'.
Test results
Breaking strength/cN/dtex Elongation at break/% Number of molten drops/drop/min LOI
Example 1 23.4 6.4 2 36.5
Example 2 23.1 7.8 1 38.9
Example 3 22.5 5.9 0 41.2
Comparative example 22.0 5.1 20 32.0
It can be seen from the table that the flame retardant properties of the fibers prepared in examples 1, 2 and 3 are significantly better than those of the fibers prepared by the conventional method, and the breaking strength and elongation of the aramid fiber are not affected.

Claims (2)

1. A method for coating aramid 1414 fibers with PEEK is characterized in that: comprises the following steps:
preparing melt-drip-resistant flame-retardant polyether-ether-ketone master batch:
(1) mixing polyether-ether-ketone, octaphenyl cage-type silsesquioxane and melamine polyphosphate according to the following mass percent, and uniformly dispersing the flame retardant by adopting a stirrer;
50-70wt% of polyether-ether-ketone
Octaphenyl cage type silsesquioxane 5-15wt%
25-35wt% of melamine polyphosphate;
(2) adding the mixture obtained in the step (1) into a five-section heating double-screw extruder, extruding, controlling the first-zone temperature to be 280 ℃, the second-zone temperature to be 360 ℃, the third-zone temperature to be 365 ℃, the fourth-zone temperature to be 370 ℃, the fifth-zone temperature to be 375 ℃, and the screw rotating speed to be 80 r/min, and granulating by using a granulator after extruding from a machine head to obtain the flame-retardant polyether-ether-ketone granules;
(II) preparation of PEEK-coated aramid 1414 fiber:
(1) preparing untwisted aramid 1414 filaments;
(2) adding the flame-retardant polyether-ether-ketone master batches and the high-temperature organic silicon lubricant which are matched according to the following mass percentage into a high-speed mixer, and fully stirring to be uniform to obtain a mixture;
80-90 wt% of flame-retardant polyether-ether-ketone master batch
10-20 wt% of high-temperature organic silicon lubricant;
(3) feeding the mixed material obtained in the step (2) into a screw extruder, performing melt extrusion, and coating the aramid 1414 filaments through a die with a corresponding size;
(4) drawing by a drawing roller at a speed of 25-60m/min, and collecting the filaments.
2. The method for coating the aramid 1414 fibers with PEEK as claimed in claim 1, wherein: the screw extrusion temperature of the screw extruder was 370/375/375/380/385 ℃.
CN202111618693.7A 2021-12-28 2021-12-28 Method for coating aramid 1414 fibers with PEEK Pending CN114351465A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101215404A (en) * 2008-01-04 2008-07-09 吉林大学 Special-purpose material for spinning-stage polyetheretherketone resin and preparation method thereof
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US20130244527A1 (en) * 2010-09-23 2013-09-19 Invista North America S.A.R.L. Flame retardant fibers, yarns, and fabrics made therefrom
WO2019000613A1 (en) * 2017-06-26 2019-01-03 徐天宏 Novel high-performance aramid-based composite rope
CN110028756A (en) * 2019-04-01 2019-07-19 吉林大学 A kind of polyether-ether-ketone base synergistic anti-flaming nano composite material and preparation method thereof
CN110041612A (en) * 2019-04-01 2019-07-23 四川大学 Oligomeric silsesquioxane increase-volume and synergistic halogen-free flame retardant polypropylene composite material and preparation method thereof
CN110963237A (en) * 2019-12-20 2020-04-07 上海永利带业股份有限公司 Small-size flame-retardant conveying belt
CN111826963A (en) * 2020-08-17 2020-10-27 美瑞新材料股份有限公司 Aramid fiber with surface coated with PUR and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101215404A (en) * 2008-01-04 2008-07-09 吉林大学 Special-purpose material for spinning-stage polyetheretherketone resin and preparation method thereof
US20130244527A1 (en) * 2010-09-23 2013-09-19 Invista North America S.A.R.L. Flame retardant fibers, yarns, and fabrics made therefrom
CN103146175A (en) * 2012-12-26 2013-06-12 余姚中国塑料城塑料研究院有限公司 Polyether ether ketone (PEEK) composite material modified from polyhedral oligomeric silsesquioxane (POSS)
WO2019000613A1 (en) * 2017-06-26 2019-01-03 徐天宏 Novel high-performance aramid-based composite rope
CN110028756A (en) * 2019-04-01 2019-07-19 吉林大学 A kind of polyether-ether-ketone base synergistic anti-flaming nano composite material and preparation method thereof
CN110041612A (en) * 2019-04-01 2019-07-23 四川大学 Oligomeric silsesquioxane increase-volume and synergistic halogen-free flame retardant polypropylene composite material and preparation method thereof
CN110963237A (en) * 2019-12-20 2020-04-07 上海永利带业股份有限公司 Small-size flame-retardant conveying belt
CN111826963A (en) * 2020-08-17 2020-10-27 美瑞新材料股份有限公司 Aramid fiber with surface coated with PUR and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
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Application publication date: 20220415