CN109797541A - PET flame-proof monofilament - Google Patents
PET flame-proof monofilament Download PDFInfo
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Abstract
The present invention relates to PET monofilament technical fields, more particularly to PET flame-proof monofilament, including PET core beam and the flame-retardant layer being coated on the outside of PET core beam, the flame-retardant layer includes the raw material of following parts by weight: 80-100 parts of UV-cured resin, 20-30 parts of Corvic, 20-35 parts of polyurethane resin, 3-6 parts of wood powder, 4-6 parts of porous laminated silicate fire retardant, 5-9 parts of toughener, 5-7 parts of compatilizer, 8-12 parts of antioxidant, 80-100 parts of organic solvent, with excellent flame retardant property and anti-dripping melt performance, smoke suppressing effect is good for it.
Description
Technical field
The present invention relates to PET monofilament technical fields, and in particular to PET flame-proof monofilament.
Background technique
PET is the polymer of milky or light yellow highly crystalline, smooth surface and it is glossy, it is creep resistance, antifatigue
Property, rub resistance it is good, wear away it is small and hardness is high, with maximum toughness in thermoplastic；Electrical insulation capability is good, by temperature shadow
Sound is small, and against weather, chemical proof stability are good, but PET monofilament self flame retardance performance is inadequate, not can be adapted to related high resistant
The application field of combustion.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of fire-retardant lists of PET
Silk, has excellent flame retardant property and anti-dripping melt performance, and smoke suppressing effect is good.
The purpose of the invention is achieved by the following technical solution: PET flame-proof monofilament comprising PET core beam and is coated on PET
Flame-retardant layer on the outside of core beam, the flame-retardant layer include the raw material of following parts by weight:
The present invention prepares flame-retardant layer by using above-mentioned raw materials, can make flame-retardant layer obtained have excellent flame retardant property,
High temperature resistance, smoke suppressing effect is good, and anti-dripping effects is excellent.By coating flame-retardant layer on the outside of PET core beam, fire retardant can be reduced
Addition, PET monofilament good flame retardation effect obtained.
The HCl gas that PVC decomposes generation during flame-retardant layer burns can prevent to be coated on fire-retardant with starvation
PET core beam burning in layer, while PVC dechlorination can absorb a large amount of heat, thus reduce the heat release rate of PET flame-proof monofilament with
Hot total volume, achieve the purpose that it is fire-retardant, by polyvinyl chloride resin, polyurethane resin, porous laminated silicate fire retardant and wood powder carry out
Mixing, may advantageously facilitate flame-retardant layer into charcoal, keeps the carbon residue surface of flame-retardant layer smooth, forms fine and close foamed char, plays prevention
The effect that heat transmitting and oxygen are propagated.Porous laminated silicate fire retardant is since it is with porous structure, by itself and UV light
When changing resin, polyvinyl chloride resin and polyurethane resin mixing, part hybrid resin can pass through porous structure and porous laminated silicate hinders
Dosage form is fired into stable cross-linked structure, the addition of UV-cured resin makes resin matrix cure shrinkage after ultraviolet light,
So that partially porous phyllosilicate flame retardant is exposed to hybrid resin surface, and due to porous laminated silicate fire retardant with mix
Stabilization crosslinked action between resin makes the porous laminated silicate fire retardant for being exposed to hybrid resin surface will not be from compound tree
Rouge surface falls off, and then the hybrid resin surface uniform adhesion after solidifying has porous laminated silicate fire retardant, in flame-retardant layer
Burning Shi Xianyu heat source is in contact, and obstructs the transmitting and expansion of external heat and oxygen to flame-retardant layer inside and PET core beam
It dissipates, while having obstructed release of the internal combustible volatile to gas-phase combustion area again, smoke suppressing effect is good.Therefore it is adhered to hybrid resin
The porous laminated silicate fire retardant on surface forms first layer flame-retardant layer, and is mixed in the porous laminated silicic acid inside hybrid resin
Salt fire retardant and hybrid resin and wood powder form second layer flame-retardant layer, and the synergistic effect of two layers of flame-retardant layer hinders PET core Shu Jinhang
Combustion protection, flame retardant effect is excellent, while improving the mechanical property of PET flame-proof monofilament.
Preferably, it is 1-3:0.5:2-3 that toughener is vinylacetate, epoxidized soybean oil and haloflex by weight
The mixture of composition.Vinylacetate, epoxidized soybean oil and haloflex make resistance obtained by the progress of above-mentioned weight ratio is compound
Firing layer has excellent flexibility, impact resistance and elasticity.
Preferably, compatilizer is tricresyl phosphate to sec-butylbenzene base ester, dioctyl phthalate, methyl methacrylate-
At least one of butadiene-styrene terpolymer.The present invention, can be with other originals by using the compatilizer of mentioned kind
Material matches effect, concerted reaction, intermolecular interfacial tension when each resin material is reacted with other raw materials is effectively reduced, in turn
Interface cohesive force is improved, keeps dispersed phase and continuous phase uniform, forms stable structure, promotes composite resin material and each raw material
Cooperate reaction, improve composite resin material impact strength, toughness, improve rheological performance, improve surface smoothness and
Flame retardant property.
Preferably, antioxidant is at least one of antioxidant 1076, irgasfos 168, antioxidant 445 and titanium dioxide.
Above-mentioned antioxidant can effectively inhibit the heat ageing of composite material to degrade and light degradation with aging, improve the service life of composite material.
Preferably, organic solvent is the mixed solution that toluene and ethyl acetate are 3-4:1 composition by weight, above-mentioned organic
The cross-linked polymeric of composite material can be improved in compounded organic solvent, improves the flame retardant property and flexibility that composite material is made.
Wherein, the partial size of the wood powder is 20-50nm.When the partial size of wood powder is excessive, the roughness on wood powder surface is high, knot
Loosely, the compatibility between wood powder and hybrid resin is poor for structure, makes the flame retardant property decline of PET flame-proof monofilament obtained, together
When, hybrid resin melt is not easy to permeate into wood powder, and then makes wood powder cavity blemish easy to form, and composite material is larger in receiving
Drawing force when be easy to form stress concentration in fault location material made to be easy to appear phenomenon of rupture, therefore when wood powder partial size is excessive
The tensile strength of composite material can be made to decline, when wood powder partial size is too small, will affect flame retardant property, the bendability of PET flame-proof monofilament
Energy, impact property and tensile strength.
Wherein, the preparation method of the porous laminated phosphate flame retardants includes the following steps:
(1) quaternary alkylphosphonium salt of 4-10 parts by weight is mixed with the inorganic montmorillonite of 20-30 parts by weight, in the protection of inert gas
Under, the volumetric concentration that 50-60 parts by weight are added is the ethanol water of 70-80%, then heats, insulated and stirred, is made phosphorous
Organic layered silicate salt；
(2) phosphorous organic layered silicate salt made from step (1) is mixed with the amino acid of 20-25 parts by weight, in inertia
It under the protection of gas, heats and stirs, containing phosphorus-nitrogen organic layered silicate salt is made；
(3) ethyl alcohol for being 90-95% by the volumetric concentration that the nano-cellulose of 6-9 parts by weight is added to 20-40 parts by weight
Ultrasonic disperse is carried out in aqueous solution, obtains dispersion liquid；
(4) the detergent alkylate sulphur of 3-5 parts by weight is added into containing phosphorus-nitrogen organic layered silicate salt made from step (2)
Sour sodium, be subsequently added into 25-34 parts by weight ethyl orthosilicate and step (3) made from dispersion liquid, be sufficiently stirred reaction after carry out
It is separated by solid-liquid separation, is then dried in vacuo, the pillared layered silicate of phosphorus-nitrogen-silicon containing is made；
(5) the pillared layered silicate of phosphorus-nitrogen-silicon containing is roasted, removes carbon elimination, oxygen organic and nano-cellulose, system
Obtain porous laminated silicate fire retardant.
It is de- with covering between phosphorous, nitrogen, silicon and nano-cellulose are inserted into cheating engaging layer by using method of the invention
Soil skeleton binding reaction has occurred, meanwhile, by roasting make carbon oxygen organic and nano-cellulose resolve into carbon dioxide and
Aqueous vapor escapes montmorillonite layer, so that interlayer is generated more said minuscule hole and nano-cellulose channel, increases the layer of montmorillonite
Spacing and specific surface area keep montmorillonite evenly dispersed in hybrid resin system, improve flame retardant effect.Simultaneously as phosphorus,
Nitrogen, the insertion of silicon and the formation of porous structure improve the flame retardant property and thermal stability of montmorillonite, and then improve PET resistance
Fire the flame retardant property and mechanical property of monofilament.
Wherein, the diameter of the nano-cellulose in the step (3) is 30-50nm, and length is 1-2 μm.Control Nanowire
Plain major diameter and corresponding dosage are tieed up, the size controlling of porous laminated silicate fire retardant obtained can be made in 150-250nm
Between, hole holds channel in 150-160cm3/ g improves the crosslinked action of hybrid resin and porous laminated silicate fire retardant, makes more
Hole phyllosilicate flame retardant is homogeneously dispersed in hybrid resin, and is not migrated, and flame retardant effect is improved.
Wherein, the heating temperature in the step (1) is 30-40 DEG C, mixing speed 200-500r/min, stirs duration
For 0.5-1h.It is more advantageous between so that phosphorus is inserted into cheating engaging layer, improves porous by using above-mentioned heating temperature and mixing speed
The flame retardant effect of phyllosilicate flame retardant.
Wherein, the heating temperature in the step (2) is 50-60 DEG C, mixing speed 400-600r/min；The step
(4) drying temperature in is 100-150 DEG C.Being more advantageous to by using above-mentioned heating temperature and mixing speed makes nitrogen be inserted into illiteracy
Between de- soil layer, makes nitrogen and phosphorus cooperative flame retardant, improve the flame retardant effect of porous laminated silicate fire retardant.Using dry in step 4
The partial size of the dry porous laminated silicate fire retardant of temperature control keeps porous laminated silicate fire-retardant between 150-250nm
The nanometer size effect of agent.
Wherein, the maturing temperature in the step (5) is 600-700 DEG C, calcining time 1-2h.Pass through control roasting temperature
Degree and time make nano-cellulose and carbon, oxygen organic sufficiently be decomposed into water and carbon dioxide evolution montmorillonite layer, make interlayer
More said minuscule hole and nano-cellulose channel are generated, the interlamellar spacing and specific surface area of montmorillonite are increased.
Preferably, the quaternary alkylphosphonium salt is tetrakis hydroxymetyl phosphonium sulfuric, tetrakis hydroxymetyl phosphonium sulfuric-urea contracting body, tetra methylol chlorination
At least one of phosphorus-urea contracting body.
Wherein, the UV-cured resin includes the raw material of following parts by weight:
The present invention as the selection of selection and epoxy resin to acrylic monomers make made from UV-cured resin with
PET core beam is well combined, and compatibility is good between UV-cured resin and polyurethane resin and Corvic obtained, is had
Conducive to the flame retardant property and photocuring shrinkage for improving flame-retardant layer.
Preferably, the catalyst is triphenyl phosphorus or N, N- dimethyl benzylamine；The photoinitiator is benzophenone, diethyl
At least one of oxygroup acetophenone, benzoin dimethylether；The polymerization inhibitor is hydroquinone.
Wherein, the preparation method of the PET flame-proof monofilament includes the following steps:
S1, by UV-cured resin, Corvic, polyurethane resin, wood powder, toughener, compatilizer, antioxidant
It carries out being mixed and stirred for by weight ratio with organic solvent uniformly, mixed liquor being made；
S2, porous laminated silicate fire retardant is added into mixed liquor made from step S1 and is stirred evenly, be made fire-retardant
Mixed liquor；
S3, fire-retardant mixed liquor made from step S3 is carried out to be forced into 60-70Mpa, keeps slow release after 0.5-1.5h,
It is thoroughly mixed again after fire-retardant mixed liquor restores to normal pressure, flame-proof material is made；
S4, PET core beam is immersed in flame-proof material makes PET core beam external sheath flame-proof material, then carry out ultraviolet light
So that flame-proof material is formed by curing flame-retardant layer, PET flame-proof monofilament is made.
By the way that 60-70Mpa is mixed and be forced into mixed liquor by porous laminated silicate fire retardant, mixed liquor is being pressed
It is crosslinked under the action of power by porous structure and porous laminated silicate fire retardant, pressurization improves crosslinked action, makes porous laminated
Silicate fire retardant is more stable in conjunction with hybrid resin, when hybrid resin cure shrinkage under ultraviolet lighting, porous laminated silicon
Hydrochlorate fire retardant is not susceptible to migrate or fall off, and partially porous phyllosilicate flame retardant is firmly adhered to hybrid resin table
Face reduces the hydroscopicity of flame-retardant layer, also raising flame retardant effect.
Wherein, flame-retardant layer with a thickness of 0.01-0.02mm, the diameter of the PET core beam is 0.04-0.5mm, works as flame-retardant layer
Thickness it is excessive when, the toughness of PET monofilament obtained is lower, when the thickness of flame-retardant layer is too small, PET monofilament obtained it is fire-retardant
Effect decline.
The beneficial effects of the present invention are: the present invention is set by using porous laminated silicate fire retardant and ultraviolet light solidification
Rouge, polyvinyl chloride resin and polyurethane resin mixing, make part hybrid resin pass through porous structure and the fire-retardant dosage form of porous laminated silicate
At stable cross-linked structure, it is distributed in porous laminated silicate fire retardant uniformly and stably in hybrid resin system, is not easy
It migrates, improves flame retardant effect；
The present invention makes resin matrix cure shrinkage after ultraviolet light, makes part by addition UV-cured resin
Porous laminated silicate fire retardant is exposed to hybrid resin surface, and porous laminated silicate fire retardant is in flame-retardant layer burning Shi Xianyu
Heat source is in contact, and obstructs the transmitting and diffusion of external heat and oxygen to flame-retardant layer inside and PET core beam, while hindering again
Every release of the internal combustible volatile to gas-phase combustion area, smoke suppressing effect is good.It is adhered to the porous laminated of hybrid resin surface
Silicate fire retardant formed first layer flame-retardant layer, and be mixed in the porous laminated silicate fire retardant inside hybrid resin with mix
Resin and wood powder form second layer flame-retardant layer, and the synergistic effect of two layers of flame-retardant layer is to PET core Shu Jinhang fire-resisting protection, fire-retardant effect
Fruit is excellent, while improving the mechanical property of PET flame-proof monofilament.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
PET flame-proof monofilament comprising PET core beam and the flame-retardant layer being coated on the outside of PET core beam, the flame-retardant layer include such as
The raw material of lower parts by weight:
Specifically, it is 2:0.5:2.5 group that toughener is vinylacetate, epoxidized soybean oil and haloflex by weight
At mixture；Compatilizer is tricresyl phosphate to sec-butylbenzene base ester, dioctyl phthalate, methyl methacrylate-fourth two
Alkene-styrene copolymer is the mixture of 1:1:1 composition by weight；Antioxidant be antioxidant 1076, irgasfos 168 and
Titanium dioxide is the mixture of 1:1:1 composition by weight；Organic solvent is that toluene and ethyl acetate are 3.5:1 group by weight
At mixed solution.
Wherein, the partial size of the wood powder is 35nm.
Wherein, the preparation method of the porous laminated phosphate flame retardants includes the following steps:
(1) quaternary alkylphosphonium salt of 7 parts by weight is mixed with the inorganic montmorillonite of 25 parts by weight, in the protection of inert nitrogen gas
Under, the ethanol water that the volumetric concentration of 55 parts by weight is 75% is added, is then heated to 35 DEG C, insulated and stirred, mixing speed
For 350r/min, when stirring a length of 0.75h, phosphorous organic layered silicate salt is made；
(2) phosphorous organic layered silicate salt made from step (1) is mixed with the amino acid of 22.5 parts by weight, in indifferent gas
It under the protection of body nitrogen, is heated to 55 DEG C and stirs, containing phosphorus-nitrogen organic layered silicate salt is made in mixing speed 500r/min；
(3) it is water-soluble for 92.5% ethyl alcohol that the nano-cellulose of 7.5 parts by weight is added to the volumetric concentration of 30 parts by weight
Ultrasonic disperse is carried out in liquid, obtains dispersion liquid；
(4) dodecyl benzene sulfonic acid of 4 parts by weight is added into containing phosphorus-nitrogen organic layered silicate salt made from step (2)
Sodium, be subsequently added into 29.5 parts by weight ethyl orthosilicate and step (3) made from dispersion liquid, be sufficiently stirred reaction after carry out solid-liquid
Separation, is then dried in vacuo, and drying temperature is 125 DEG C, and the pillared layered silicate of phosphorus-nitrogen-silicon containing is made；
(5) the roasting temperature 1.5h by the pillared layered silicate of phosphorus-nitrogen-silicon containing at 650 DEG C removes carbon elimination, oxygen organic
And nano-cellulose, porous laminated silicate fire retardant is made.
Wherein, the diameter of the nano-cellulose in the step (3) is 40nm, and length is 1.5 μm.
Wherein, the quaternary alkylphosphonium salt is tetrakis hydroxymetyl phosphonium sulfuric, tetrakis hydroxymetyl phosphonium sulfuric-urea contracting body, tetramethylol chloride-
Urea contracting body is the mixture of 1:1:1 composition by weight.
The UV-cured resin includes the raw material of following parts by weight:
Specifically, the catalyst is triphenyl phosphorus；The photoinitiator is benzophenone, diethoxy acetophenone, rests in peace
Fragrant double methyl ethers are the mixture of 1:1.5:1 composition by weight；The polymerization inhibitor is hydroquinone.
Wherein, the preparation method of the PET flame-proof monofilament includes the following steps:
S1, by UV-cured resin, Corvic, polyurethane resin, wood powder, toughener, compatilizer, antioxidant
It carries out being mixed and stirred for by weight ratio with organic solvent uniformly, mixed liquor being made；
S2, porous laminated silicate fire retardant is added into mixed liquor made from step S1 and is stirred evenly, be made fire-retardant
Mixed liquor；
S3, fire-retardant mixed liquor made from step S3 is carried out to be forced into 65Mpa, temperature is 55 DEG C, is slowly unloaded after keeping 1h
Pressure, is thoroughly mixed again after fire-retardant mixed liquor restores to normal pressure, and flame-proof material is made；
S4, PET core beam is immersed in flame-proof material makes PET core beam external sheath flame-proof material, then carry out ultraviolet light
So that flame-proof material is formed by curing flame-retardant layer, obtains PET flame-proof monofilament.
Wherein, flame-retardant layer with a thickness of 0.015mm, the diameter of the PET core beam is 0.25mm.
Embodiment 2
PET flame-proof monofilament comprising PET core beam and the flame-retardant layer being coated on the outside of PET core beam, the flame-retardant layer include such as
The raw material of lower parts by weight:
Specifically, it is 1:0.5:2 composition that toughener is vinylacetate, epoxidized soybean oil and haloflex by weight
Mixture.Compatilizer is tricresyl phosphate to sec-butylbenzene base ester, and antioxidant is antioxidant 1076, and organic solvent is toluene and acetic acid
Ethyl ester is the mixed solution of 3:1 composition by weight.
Wherein, the partial size of the wood powder is 20nm.
Wherein, the preparation method of the porous laminated phosphate flame retardants includes the following steps:
(1) quaternary alkylphosphonium salt of 4 parts by weight is mixed with the inorganic montmorillonite of 20 parts by weight, in the protection of inert nitrogen gas
Under, the ethanol water that the volumetric concentration of 50 parts by weight is 70% is added, then heats, insulated and stirred, heating temperature is 30 DEG C,
Mixing speed is 200r/min, when stirring a length of 0.5h, phosphorous organic layered silicate salt is made；
(2) phosphorous organic layered silicate salt made from step (1) is mixed with the amino acid of 20 parts by weight, in inert gas
It under the protection of nitrogen, heats and stirs, heating temperature is 50 DEG C, mixing speed 400r/min, and containing phosphorus-nitrogen organic layer is made
Silicate；
(3) nano-cellulose of 6 parts by weight is added in the ethanol water that the volumetric concentration of 20 parts by weight is 90%
Ultrasonic disperse is carried out, dispersion liquid is obtained；
(4) dodecyl benzene sulfonic acid of 3 parts by weight is added into containing phosphorus-nitrogen organic layered silicate salt made from step (2)
Sodium, be subsequently added into 25 parts by weight ethyl orthosilicate and step (3) made from dispersion liquid, carry out solid-liquid point after reaction is sufficiently stirred
From, be then dried in vacuo, drying temperature be 100 DEG C, be made the pillared layered silicate of phosphorus-nitrogen-silicon containing；
(5) the pillared layered silicate of phosphorus-nitrogen-silicon containing is roasted, maturing temperature is 600 DEG C, and calcining time 1h is removed
Porous laminated silicate fire retardant is made in carbon elimination, oxygen organic and nano-cellulose.
Wherein, the diameter of the nano-cellulose in the step (3) is 30nm, and length is 1 μm.
Specifically, the quaternary alkylphosphonium salt is tetrakis hydroxymetyl phosphonium sulfuric.
Wherein, the UV-cured resin includes the raw material of following parts by weight:
Specifically, the catalyst is N, N- dimethyl benzylamine；The photoinitiator is benzophenone；The polymerization inhibitor is to benzene
Diphenol.
Wherein, the preparation method of the flame-retardant layer includes the following steps:
S1, by UV-cured resin, Corvic, polyurethane resin, wood powder, toughener, compatilizer, antioxidant
It carries out being mixed and stirred for by weight ratio with organic solvent uniformly, mixed liquor being made；
S2, porous laminated silicate fire retardant is added into mixed liquor made from step S1 and is stirred evenly, be made fire-retardant
Mixed liquor；
S3, fire-retardant mixed liquor made from step S3 is carried out to be forced into 60Mpa, slow release after 0.5h is kept, to fire-retardant
Mixed liquor is thoroughly mixed again after restoring to normal pressure, and flame-proof material is made；
S4, PET core beam is immersed in flame-proof material makes PET core beam external sheath flame-proof material, then carry out ultraviolet light
Flame-proof material is set to be formed by curing flame-retardant layer.
Wherein, flame-retardant layer with a thickness of 0.01mm, the diameter of the PET core beam is 0.04mm.
Embodiment 3
PET flame-proof monofilament comprising PET core beam and the flame-retardant layer being coated on the outside of PET core beam, the flame-retardant layer include such as
The raw material of lower parts by weight:
Specifically, it is 3:0.5:3 composition that toughener is vinylacetate, epoxidized soybean oil and haloflex by weight
Mixture.Compatilizer is dioctyl phthalate.Antioxidant is irgasfos 168.Organic solvent is toluene and ethyl acetate
By weight the mixed solution for 4:1 composition
Wherein, the partial size of the wood powder is 50nm.
Wherein, the preparation method of the porous laminated phosphate flame retardants includes the following steps:
(1) quaternary alkylphosphonium salt of 10 parts by weight is mixed with the inorganic montmorillonite of 30 parts by weight, in the protection of inert nitrogen gas
Under, the ethanol water that the volumetric concentration of 60 parts by weight is 80% is added, then heats, insulated and stirred, heating temperature is 40 DEG C,
Mixing speed is 500r/min, when stirring a length of 1h, phosphorous organic layered silicate salt is made；
(2) phosphorous organic layered silicate salt made from step (1) is mixed with the amino acid of 25 parts by weight, in inert gas
Protection under, heat and stir, heating temperature be 60 DEG C, mixing speed 600r/min, be made containing phosphorus-nitrogen organic layered silicate
Salt；
(3) nano-cellulose of 9 parts by weight is added in the ethanol water that the volumetric concentration of 40 parts by weight is 95%
Ultrasonic disperse is carried out, dispersion liquid is obtained；
(4) dodecyl benzene sulfonic acid of 5 parts by weight is added into containing phosphorus-nitrogen organic layered silicate salt made from step (2)
Sodium, be subsequently added into 34 parts by weight ethyl orthosilicate and step (3) made from dispersion liquid, carry out solid-liquid point after reaction is sufficiently stirred
From, be then dried in vacuo, drying temperature be 150 DEG C, be made the pillared layered silicate of phosphorus-nitrogen-silicon containing；
(5) the pillared layered silicate of phosphorus-nitrogen-silicon containing is roasted, maturing temperature is 700 DEG C, and calcining time 2h is removed
Porous laminated silicate fire retardant is made in carbon elimination, oxygen organic and nano-cellulose.
Wherein, the diameter of the nano-cellulose in the step (3) is 50nm, and length is 2 μm.
Specifically, the quaternary alkylphosphonium salt is tetrakis hydroxymetyl phosphonium sulfuric-urea contracting body.
Wherein, the UV-cured resin includes the raw material of following parts by weight:
Specifically, the catalyst is N, N- dimethyl benzylamine；The photoinitiator is diethoxy acetophenone；The resistance
Poly- agent hydroquinone.
Wherein, the preparation method of the flame-retardant layer includes the following steps:
S1, by UV-cured resin, Corvic, polyurethane resin, wood powder, toughener, compatilizer, antioxidant
It carries out being mixed and stirred for by weight ratio with organic solvent uniformly, mixed liquor being made；
S2, porous laminated silicate fire retardant is added into mixed liquor made from step S1 and is stirred evenly, be made fire-retardant
Mixed liquor；
S3, fire-retardant mixed liquor made from step S3 is carried out to be forced into 70Mpa, slow release after 1.5h is kept, to fire-retardant
Mixed liquor is thoroughly mixed again after restoring to normal pressure, and flame-proof material is made；
S4, PET core beam is immersed in flame-proof material makes PET core beam external sheath flame-proof material, then carry out ultraviolet light
Flame-proof material is set to be formed by curing flame-retardant layer.
Wherein, flame-retardant layer with a thickness of 0.02mm, the diameter of the PET core beam is 0.5mm.
Performance test
PET flame-proof monofilament made from above-described embodiment 1-3 is subjected to flame retardant property, smoke suppressing, tensile strength, heat respectively
The performance tests such as deformation temperature, waterproof performance, anti-dripping melt, test result are as shown in table 1.
Wherein, the test method of waterproof performance: PET flame-proof monofilament obtained is soaked in 48h in water, before test is impregnated
The weight g of PET flame-proof monofilament1, the weight g of the PET flame-proof monofilament after immersion2, and press (g2-g1)/g1Calculate to obtain PET flame-proof monofilament
Hydroscopicity.
Flame-retardant PET filament properties test result summary sheet made from 1 embodiment 1-3 of table
By the performance test results of table 1 it is found that PET flame-proof monofilament smoke density grade produced by the present invention 8-10 it
Between, smoke suppressing effect is good；For tensile strength between 84-89MPa, tensile property is good；The flame retardant rating of PET flame-proof monofilament obtained
It is A grades, heat distortion temperature is 152-180 DEG C, and excellent fireproof performance, property is stablized, and is not susceptible to thermal deformation, and anti-dripping melt performance
It is good, and waterproof performance is good.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1.PET flame-proof monofilament, it is characterised in that: described fire-retardant including PET core beam and the flame-retardant layer being coated on the outside of PET core beam
Layer includes the raw material of following parts by weight:
2. PET flame-proof monofilament according to claim 1, it is characterised in that: the system of the porous laminated phosphate flame retardants
Preparation Method includes the following steps:
(1) quaternary alkylphosphonium salt of 4-10 parts by weight is mixed with the inorganic montmorillonite of 20-30 parts by weight, under the protection of inert gas,
The volumetric concentration that 50-60 parts by weight are added is the ethanol water of 70-80%, then heats, insulated and stirred, is made phosphorous organic
Phyllosilicate；
(2) phosphorous organic layered silicate salt made from step (1) is mixed with the amino acid of 20-25 parts by weight, in inert gas
Protection under, heat and stir, be made containing phosphorus-nitrogen organic layered silicate salt；
(3) it is water-soluble for the ethyl alcohol of 90-95% that the nano-cellulose of 6-9 parts by weight is added to the volumetric concentration of 20-40 parts by weight
Ultrasonic disperse is carried out in liquid, obtains dispersion liquid；
(4) neopelex of 3-5 parts by weight is added into containing phosphorus-nitrogen organic layered silicate salt made from step (2),
Be subsequently added into 25-34 parts by weight ethyl orthosilicate and step (3) made from dispersion liquid, carry out solid-liquid point after reaction is sufficiently stirred
From, be then dried in vacuo, be made the pillared layered silicate of phosphorus-nitrogen-silicon containing；
(5) the pillared layered silicate of phosphorus-nitrogen-silicon containing is roasted, removes carbon elimination, oxygen organic and nano-cellulose, be made more
Hole phyllosilicate flame retardant.
3. PET flame-proof monofilament according to claim 2, it is characterised in that: nano-cellulose in the step (3) it is straight
Diameter is 30-50nm, and length is 1-2 μm.
4. PET flame-proof monofilament according to claim 2, it is characterised in that: the heating temperature in the step (1) is 30-
40 DEG C, mixing speed 200-500r/min, when stirring a length of 0.5-1h.
5. according to PET flame-proof monofilament as claimed in claim 2, it is characterised in that: the heating temperature in the step (2) is 50-60
DEG C, mixing speed 400-600r/min；Drying temperature in the step (4) is 100-150 DEG C.
6. according to PET flame-proof monofilament as claimed in claim 2, it is characterised in that: the maturing temperature in the step (5) is 600-
700 DEG C, calcining time 1-2h.
7. PET flame-proof monofilament according to claim 1, it is characterised in that: the UV-cured resin includes following weight
Measure the raw material of number:
8. PET flame-proof monofilament according to claim 1, it is characterised in that: the partial size of the wood powder is 20-50nm.
9. PET flame-proof monofilament according to claim 1, it is characterised in that: the toughener is vinylacetate, epoxy is big
Soya-bean oil and haloflex are the mixture of 1-3:0.5:2-3 composition by weight.
10. PET flame-proof monofilament according to claim 1, it is characterised in that: the preparation method packet of the PET flame-proof monofilament
Include following steps:
S1, by UV-cured resin, Corvic, polyurethane resin, wood powder, toughener, compatilizer, antioxidant and have
Solvent carries out being mixed and stirred for by weight ratio uniformly, mixed liquor being made；
S2, porous laminated silicate fire retardant is added into mixed liquor made from step S1 and is stirred evenly, fire-retardant mixing is made
Liquid；
S3, fire-retardant mixed liquor made from step S3 is carried out to be forced into 60-70Mpa, slow release after 0.5-1.5h is kept, wait hinder
Combustion mixed liquor is thoroughly mixed again after restoring to normal pressure, and flame-proof material is made；
S4, PET core beam is immersed in flame-proof material makes PET core beam external sheath flame-proof material, then carrying out ultraviolet light makes to hinder
Fuel solidifying forms flame-retardant layer, and PET flame-proof monofilament is made.
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| CN201910153423.XA CN109797541B (en) | 2019-02-28 | 2019-02-28 | PET flame-retardant monofilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153423.XA CN109797541B (en) | 2019-02-28 | 2019-02-28 | PET flame-retardant monofilament |
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| CN109797541B CN109797541B (en) | 2021-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110628188A (en) * | 2019-09-30 | 2019-12-31 | 东莞易昌塑胶布业有限公司 | PET composite material prepared by recycling PET plastic waste and application thereof |
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| CN109797541B (en) | 2021-04-27 |
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