CN107964167A - A kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature and preparation method thereof - Google Patents

A kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature and preparation method thereof Download PDF

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Publication number
CN107964167A
CN107964167A CN201711343078.3A CN201711343078A CN107964167A CN 107964167 A CN107964167 A CN 107964167A CN 201711343078 A CN201711343078 A CN 201711343078A CN 107964167 A CN107964167 A CN 107964167A
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fire
retardant
parts
glass fiber
processing temperature
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王同海
岳子玉
宋洪祥
李翰卿
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Jiangsu Million New Mstar Technology Ltd Knape
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Jiangsu Million New Mstar Technology Ltd Knape
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    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene
    • C08J2425/06—Polystyrene
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    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/02—Halogenated hydrocarbons
    • C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3415—Five-membered rings
    • C08K5/3417—Five-membered rings condensed with carbocyclic rings
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Abstract

The present invention relates to high processing temperature feature fire proofing field, especially a kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature and preparation method thereof；Its mass parts composition is as follows：15 35 parts of function fire-retardant master granule, 10 40 parts of roving glass fiber, 20 60 parts of acrylic resin；The mass parts composition of the function fire proofing is as follows：5~25 parts of vector resin, 60~80 parts of fire retardant, 10~30 parts of fire retarding synergist, 0.05~2 part of antioxidant, 0.05~2 part of anti-dripping agent, 0.5~3 part of lubricant；The present invention has excellent fire resistance and higher heat distortion temperature；Since present invention employs double (tetrabromo phthalimide) fire retardants of the heat-resisting ethyl of superelevation, its outstanding heat endurance, it is set not decomposed under 280 320 DEG C of processing temperature, it can obtain again at the same time scattered well, excellent fire resistance and hot property are obtained, while its mechanical property is unaffected.

Description

A kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature and preparation method thereof
Technical field
The present invention relates to high processing temperature feature fire proofing field, especially a kind of fire-retardant roving glass fiber of high processing temperature Reinforced polypropylene material and preparation method thereof.
Background technology
Long glass fibres enhancing thermoplastic refers to by long, continuous glass fibre, is filled by special process by resin Sub-dip profit, after obtaining strip, be cut into the fiberglass reinforced micelle of specific dimensions again or grown by the long glass fibres of resin infiltration cladding Bar be directly molded or injection molding after material.The length of glass is generally in more than 3mm in long glass fiber reinforced material.Wherein, with Polypropylene PP is that the long glass fiber reinforced composite material of matrix has small light specific gravity, molding shrinkage, superior fatigue resistance, flowing Property good, recyclable the advantages that recycling, it is more and more wider as a kind of application range of emerging high performance engineering plastics.
At present, long glass fiber-reinforced polypropylene materials are widely used in automobile industry, machine-building, electronic apparatus, space flight Department and the industries such as communication, building.In recent years, as the increase of plastic product and safety standard improve, above-mentioned every profession and trade is to institute Required with the fire resistance of material higher and higher.Most commonly used in organic fire-resisting material is halogen additive, not only fire-retardant effect Fruit is good, and fire-retardant product performance is influenced it is less, while with the good compatibility of high molecular material, it is easy to use, therefore be subject to Widely use.Currently on the market the processing temperature of most of long glass fiber-reinforced polypropylene materials at 280-320 DEG C or so even more Height, a degree of decomposition occurs in most of bromide fire retardants on this condition, so as to influence the various performances of material, limits Long glass fiber-reinforced polypropylene materials require further applying on product in high fire-retardance.Made to overcome because processing temperature is excessive The influence decomposed into fire retardant, the method generally used are mixed after master batch and fire-retardant master granule by long glass fiber reinforced resin, then At a temperature of 220-250 degrees Celsius, product or batten are molded into through injection molding machine.There are fire retardant to disperse not for this manufacture method , fire retardant additive amount is higher, burn and mechanical property is relatively low and fluctuates the defects of larger.
The content of the invention
The technical problem to be solved in the present invention is：Overcome deficiency of the prior art, there is provided one kind can be in higher processing temperature The lower method for keeping long glass fiber-reinforced polypropylene materials anti-flammability of degree, realizing again will not increase roving glass fiber while cleanly production Other performances of strong polypropylene material cause to significantly affect.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature, its mass parts composition are as follows：Function fire-retardant master granule 15-35 parts, 10-40 parts of roving glass fiber, 20-60 parts of acrylic resin；
The mass parts composition of the function fire proofing is as follows：5~25 parts of vector resin, 60~80 parts of fire retardant are fire-retardant 10~30 parts of synergist, 0.05~2 part of antioxidant, 0.05~2 part of anti-dripping agent, 0.5~3 part of lubricant.
Preferably, the vector resin is low molecular polyethylene, low-molecular-weight polypropylene, polypropylene grafted maleic anhydride One or more in compound.
Preferably, the fire retardant uses bromide fire retardant.
Preferably, the bromide fire retardant is ethyl-bis- (tetrabromo phthalimides), decabromodiphenylethane, bromination One or more in polystyrene.
Preferably, the fire retarding synergist is antimony oxide.
Preferably, the antioxidant is the one or more in pentaerythritol ester (AT-10), phosphite ester (AT-168).
Preferably, anti-dripping agent used is modified Teflon (AD-541).
Preferably, lubricant used is montanin wax.
Preferably, the polypropylene is Z30S homopolymerization types.
A kind of method of the fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature is prepared, the preparation method includes following Step：
(1) preparation of function fire-retardant master granule：By 5~25 parts of vector resin, 60~80 parts of fire retardant, fire retarding synergist 10~ 30 parts, 0.05~2 part of antioxidant, 0.05~2 part of anti-dripping agent, 0.5~3 part of lubricant pours into mixed at high speed stirrer for mixing 10 minutes；The foregoing material mixed is added into mixing in mixer, mixing processing temperature is 150 DEG C~170 DEG C, and mixing is good Material pour into it is Compulsory feeder used in, the rotating speed of feeder is 3~10rpm, and material enters in single screw rod through feeder, extrusion Temperature is 175 DEG C~205 DEG C, and screw speed is 250rpm~350rpm, and product passes through hot cut pellet, and it is stand-by to air-dry cooling；
(2) preparation of the fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature：Continuous long glass fibres, function are hindered Combustion master batch, polypropylene pass through dedicated single screw rod and double screw extruder, and extrusion temperature is 280-320 DEG C, makes polypropylene and resistance Combustion agent is uniformly coated on the surface of long glass fibres, and material strip enters in pelleter after circulating water chennel cools down is cut into uniform particle sizes Pellet.
The beneficial effect of technical solution using the present invention is：
The all raw material of the present invention is cooperated with suitable proportioning, synergistic effect so that height prepared by the present invention adds Work temperature flame retardant long glass fiber-reinforced polypropylene materials have excellent fire resistance and higher heat distortion temperature.Due to the present invention The heat-resisting ethyl of superelevation-bis- (tetrabromo phthalimides) fire retardant is employed, its outstanding heat endurance, makes it in 280- It will not be decomposed under 320 DEG C of processing temperature, while can obtain and disperse well again, increase roving glass fiber while high processing temperature Strong polypropylene material obtains excellent fire resistance and hot property, while its mechanical property is unaffected.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
1) function fire-retardant master granule produces
By 13 parts of polypropylene grafted maleic anhydrides, 67.44 parts of ethyls-bis- (tetrabromo phthalimide), 16.86 part three Two antimony, 0.1 part of antioxidant AT-10 and 0.1 part of AT-168,0.5 part of anti-dripping agent AD-541 and 2 parts of lubricant montanin waxs are aoxidized to fall Enter mixed at high speed stirrer for mixing 10 minutes, the foregoing material mixed is added into mixing in mixer, mixing processing temperature For 160 DEG C, by the good material of mixing pour into it is Compulsory feeder used in, the rotating speed of feeder is 5rpm, and material enters feeder In single screw rod, extrusion temperature is 200 DEG C, screw speed 275rpm, and product passes through hot cut pellet, and it is stand-by to air-dry cooling.
2) preparation of the fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature：
By 20 parts of roving glass fiber, 30 parts of function fire-retardant master granule, the dedicated single screw rod of 50 parts of processes of PP resins and twin-screw extrusion Machine, each area's extrusion temperature are 280-320 DEG C, PP and fire retardant is uniformly coated on the surface of long glass fibres, material strip is through following Enter after the cooling of ring sink in pelleter and be cut into uniform fire-retardant long glass fiber-reinforced polypropylene pellet, add in injection molding machine and prepare Iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1。
Embodiment 2
1) function fire-retardant master granule produces
By 16.10 parts of polypropylene grafted maleic anhydrides, 50.5 parts of ethyls-bis- (tetrabromo phthalimide) and 13.84 Part decabromodiphenylethane, 16.86 parts of antimony oxides, 0.1 part of antioxidant AT-10 and 0.1 part of AT-168,0.5 part of anti-dripping agent AD-541 and 2 part of lubricant montanin wax pours into mixed at high speed stirrer for mixing 10 minutes, and the foregoing material mixed is added Mixing in mixer, mixing processing temperature be 160 DEG C, by the good material of mixing pour into it is Compulsory feeder used in, feeder turn Speed is 5rpm, and material enters feeder in single screw rod, and extrusion temperature is 200 DEG C, screw speed 275rpm, and product is through overheat Pelletizing, it is stand-by to air-dry cooling.
2) preparation of the fire-retardant LFT-PP materials of high processing temperature：
By 20 parts of roving glass fiber, 30 parts of function fire-retardant master granule, the dedicated single screw rod of 50 parts of processes of PP resins and twin-screw extrusion Machine, each area's extrusion temperature are 280-320 DEG C, PP and fire retardant is uniformly coated on the surface of long glass fibres, material strip is through following Enter after the cooling of ring sink in pelleter and be cut into uniform fire-retardant long glass fiber-reinforced polypropylene pellet, add in injection molding machine and prepare Iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1。
Embodiment 3
1) by 12.63 parts of polypropylene grafted maleic anhydrides, 52 parts of ethyls-bis- (tetrabromo phthalimide) and 16 parts of bromines Change polystyrene, 16.67 parts of antimony oxides, 0.1 part of antioxidant AT-10 and 0.1 part of AT-168,0.5 part of anti-dripping agent AD- 541 and 2 parts of lubricant montanin waxs pour into mixed at high speed stirrer for mixing 10 minutes, and the foregoing material mixed is added mixing Mixing in machine, mixing processing temperature be 160 DEG C, by the good material of mixing pour into it is Compulsory feeder used in, the rotating speed of feeder is 5rpm, material enter feeder in single screw rod, and extrusion temperature is 200 DEG C, screw speed 275rpm, and product is by fervent Grain, it is stand-by to air-dry cooling.
2) preparation of the fire-retardant LFT-PP materials of high processing temperature：
By 20 parts of roving glass fiber, 30 parts of function fire-retardant master granule, the dedicated single screw rod of 50 parts of processes of PP resins and twin-screw extrusion Machine, each area's extrusion temperature are 280-320 DEG C, PP and fire retardant is uniformly coated on the surface of long glass fibres, material strip is through following Enter after the cooling of ring sink in pelleter and be cut into uniform fire-retardant long glass fiber-reinforced polypropylene pellet, add in injection molding machine and prepare Iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1。
Embodiment 4
1) by 5 parts of low molecular polyethylenes, 44 parts of ethyls-bis- (tetrabromo phthalimide) and 16 parts of brominated polyphenylene second Alkene, 10 parts of antimony oxides, 0.02 part of antioxidant AT-10 and 0.03 part of AT-168,0.05 part of anti-dripping agent AD-541 and 0.5 part Lubricant montanin wax pours into mixed at high speed stirrer for mixing 10 minutes, the foregoing material mixed is added close in mixer Refining, mixing processing temperature are 150 DEG C, by the good material of mixing pour into it is Compulsory feeder used in, the rotating speed of feeder is 3rpm, thing Material enters feeder in single screw rod, and extrusion temperature is 200 DEG C, screw speed 175rpm, and product passes through hot cut pellet, air-dries cold It is stand-by.
2) preparation of the fire-retardant LFT-PP materials of high processing temperature：
By 20 parts of roving glass fiber, 30 parts of function fire-retardant master granule, the dedicated single screw rod of 50 parts of processes of PP resins and twin-screw extrusion Machine, each area's extrusion temperature are 280-320 DEG C, PP and fire retardant is uniformly coated on the surface of long glass fibres, material strip is through following Enter after the cooling of ring sink in pelleter and be cut into uniform fire-retardant long glass fiber-reinforced polypropylene pellet, add in injection molding machine and prepare Iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1。
Embodiment 5
1) by 25 parts of low-molecular polypropylenes, 44 parts of ethyls-bis- (tetrabromo phthalimide) and 36 parts of brominated polyphenylene second Alkene, 30 parts of antimony oxides, 1.5 parts of antioxidant AT-10 and 0.5 part of AT-168,2 parts of anti-dripping agent AD-541 and 3 parts of lubricants Montanin wax pours into mixed at high speed stirrer for mixing 10 minutes, and the foregoing material mixed is added mixing in mixer, mixing Processing temperature is 170 DEG C, by the good material of mixing pour into it is Compulsory feeder used in, the rotating speed of feeder be 10rpm, material will hello Glassware enters in single screw rod, and extrusion temperature is 205 DEG C, screw speed 350rpm, and product passes through hot cut pellet, and air-dried cooling is treated With.
2) preparation of the fire-retardant LFT-PP materials of high processing temperature：
By 20 parts of roving glass fiber, 30 parts of function fire-retardant master granule, the dedicated single screw rod of 50 parts of processes of PP resins and twin-screw extrusion Machine, each area's extrusion temperature are 280-320 DEG C, PP and fire retardant is uniformly coated on the surface of long glass fibres, material strip is through following Enter after the cooling of ring sink in pelleter and be cut into uniform fire-retardant long glass fiber-reinforced polypropylene pellet, add in injection molding machine and prepare Iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1。
Embodiment 6
It is by 20 parts of roving glass fiber, the dedicated single screw rod of 80 parts of processes of PP resins and double screw extruder, each area's extrusion temperature 280-320 DEG C, PP and fire retardant is set to be uniformly coated on the surface of long glass fibres, material strip enters after circulating water chennel cools down cuts Uniform fire-retardant long glass fiber-reinforced polypropylene pellet is cut into grain machine, adds in injection molding machine and prepares iso standard test bars.Injection 30~80MPa of pressure, 220-240 DEG C of barrel temperature, 15~40S of injection cycle, performance are shown in Table 1.
Embodiment 7
By roving glass fiber (10,20,30,40) part, fire-retardant master granule 20 parts (embodiments 1), PP resins (60,50,40,20) part warp Dedicated single screw rod and double screw extruder are crossed, each area's extrusion temperature is 280-320 DEG C, is uniformly coated on PP and fire retardant The surface of long glass fibres, material strip enters in pelleter after circulating water chennel cools down is cut into uniform fire-retardant long glass fiber reinforced poly- third Alkene pellet, adds in injection molding machine and prepares iso standard test bars.30~80MPa of injection pressure, 220-240 DEG C of barrel temperature, note 15~40S of cycle is moulded, performance is shown in Table 2.
Table 1 (properties of embodiment 1,2,3,4,5,6)
(performance detection standard is referring to ASTM standard)
Table 2 (properties of embodiment 7)
(performance detection standard is referring to ASTM standard)
Glass fibre/part 10 20 30 40
Tensile strength/MPa 82 90 112 125
Elongation at break/% 4.2 4.6 5.3 5.3
Bending strength/MPa 117 131 133 143
Bending modulus/MPa 5998 8041 8194 9080
Impact strength KJ/m2 17 23 22 25
Fire resistance 1.6mmV0 1.6mmV0 1.6mmV0 1.6mmV0
HDT/ DEG C of thermal deformation 152 156 155 157
Density/g/cm3 1.36 1.32 1.28 1.27
The all raw material of the present invention is cooperated with suitable proportioning, synergistic effect so that height prepared by the present invention adds Work temperature flame retardant long glass fiber-reinforced polypropylene materials have excellent fire resistance and higher heat distortion temperature.Due to the present invention The heat-resisting ethyl of superelevation-bis- (tetrabromo phthalimides) fire retardant is employed, its outstanding heat endurance, makes it in 280- It will not be decomposed under 320 DEG C of processing temperature, while can obtain and disperse well again, increase roving glass fiber while high processing temperature Strong polypropylene material obtains excellent fire resistance and hot property, while its mechanical property is unaffected.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.

Claims (10)

  1. A kind of 1. fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature, it is characterised in that：Its mass parts composition is as follows：Function 15-35 parts of fire-retardant master granule, 10-40 parts of roving glass fiber, 20-60 parts of acrylic resin；
    The mass parts composition of the function fire proofing is as follows：5~25 parts of vector resin, 60~80 parts of fire retardant, fire-retardant synergistic 10~30 parts of agent, 0.05~2 part of antioxidant, 0.05~2 part of anti-dripping agent, 0.5~3 part of lubricant.
  2. A kind of 2. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute Vector resin is stated as low molecular polyethylene, low-molecular-weight polypropylene, one kind in polypropylene grafted maleic anhydride compound or several Kind.
  3. A kind of 3. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute State fire retardant and use bromide fire retardant.
  4. A kind of 4. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 3, it is characterised in that：Institute State bromide fire retardant for ethyl-bis- (tetrabromo phthalimides), decabromodiphenylethane, one kind in brominated Polystyrene or It is several.
  5. A kind of 5. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute It is antimony oxide to state fire retarding synergist.
  6. A kind of 6. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute Antioxidant is stated as the one or more in pentaerythritol ester (AT-10), phosphite ester (AT-168).
  7. A kind of 7. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute Anti-dripping agent is modified Teflon (AD-541).
  8. A kind of 8. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute Lubricant is montanin wax.
  9. A kind of 9. high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature according to claim 1, it is characterised in that：Institute It is Z30S homopolymerization types to state polypropylene.
  10. 10. prepare a kind of high fire-retardant long glass fiber-reinforced polypropylene materials of processing temperature as claimed in any one of claims 1-9 wherein Method, it is characterised in that the preparation method comprises the following steps：
    (1) preparation of function fire-retardant master granule：By 5~25 parts of vector resin, 60~80 parts of fire retardant, fire retarding synergist 10~30 Part, 0.05~2 part of antioxidant, 0.05~2 part of anti-dripping agent, 0.5~3 part of lubricant pour into mixed at high speed stirrer for mixing 10 Minute；The foregoing material mixed is added into mixing in mixer, mixing processing temperature is 150 DEG C~170 DEG C, and mixing is good Material pour into it is Compulsory feeder used in, the rotating speed of feeder is 3~10rpm, and material enters in single screw rod through feeder, extrusion temperature Spend for 175 DEG C~205 DEG C, screw speed is 250rpm~350rpm, and product passes through hot cut pellet, and it is stand-by to air-dry cooling；
    (2) preparation of the fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature：By continuous long glass fibres, the fire-retardant mother of function Grain, polypropylene pass through dedicated single screw rod and double screw extruder, and extrusion temperature is 280-320 DEG C, makes polypropylene and fire retardant The surface of long glass fibres is uniformly coated on, material strip enters in pelleter the grain for being cut into uniform particle sizes after circulating water chennel cools down Material.
CN201711343078.3A 2017-12-14 2017-12-14 A kind of fire-retardant long glass fiber-reinforced polypropylene materials of high processing temperature and preparation method thereof Pending CN107964167A (en)

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CN114015164A (en) * 2021-11-25 2022-02-08 安庆会通新材料有限公司 Flame-retardant polypropylene material and preparation method thereof

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CN110628132A (en) * 2019-10-29 2019-12-31 烟台格瑞恩高分子材料有限公司 Flame-retardant master batch for polypropylene, and preparation method and application thereof
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