CN106633187A - Safe and environment-friendly inorganic aluminum hypophosphite flame retardant and application thereof in PBT (polybutylene terephthalate) - Google Patents

Safe and environment-friendly inorganic aluminum hypophosphite flame retardant and application thereof in PBT (polybutylene terephthalate) Download PDF

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Publication number
CN106633187A
CN106633187A CN201611242876.2A CN201611242876A CN106633187A CN 106633187 A CN106633187 A CN 106633187A CN 201611242876 A CN201611242876 A CN 201611242876A CN 106633187 A CN106633187 A CN 106633187A
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polybutylene terephthalate
aluminum orthophosphate
hydrogen phosphide
combustion inhibitor
inorganic
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林沐钦
罗宏波
甄利军
刘敏
谢山
罗斯
孔利权
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Guangdong Yuxing Flame Retardant New Material Ltd By Share Ltd
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Guangdong Yuxing Flame Retardant New Material Ltd By Share Ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02Polyesters derived from dicarboxylic acids and dihydroxy compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/32Phosphorus-containing compounds
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/38Boron-containing compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
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    • C08K7/04Fibres or whiskers inorganic
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/22Expanded, porous or hollow particles
    • C08K7/24Expanded, porous or hollow particles inorganic
    • C08K7/26Silicon- containing compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/04Ingredients treated with organic substances
    • C08K9/06Ingredients treated with organic substances with silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/38Boron-containing compounds
    • C08K2003/382Boron-containing compounds and nitrogen
    • C08K2003/385Binary compounds of nitrogen with boron
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    • C08L2201/02Flame or fire retardant/resistant

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Abstract

The invention belongs to the field of materials and discloses an environment-friendly inorganic aluminum hypophosphite flame retardant and an application thereof in a PBT (polybutylene terephthalate) composite. The flame retardant is obtained by adding a hydrogen phosphide absorbent during surface modification of inorganic aluminum hypophosphite. At the last stage of synthesis of aluminum hypophosphite, the hydrogen phosphide absorbent is added, so that the contact area between aluminum hypophosphite and the hydrogen phosphide absorbent reaches the maximum; besides, different surface modifiers are selected for surface treatment on aluminum hydroxide and the hydrogen phosphide absorbent, so that the heat stability of inorganic aluminum hypophosphite is improved, meanwhile, the compatibility of inorganic aluminum hypophosphite with resin is also improved, the shearing force during extrusion pelletizing processing is reduced, release of hydrogen phosphide from inorganic aluminum hypophosphite in the extrusion pelletizing process is further reduced, release of hydrogen phosphide of the inorganic aluminum hypophosphite flame retardant PBT composite reaches the minimum, and release limit (0.08 ppm) of hydrogen phosphide in VOC substance objects and management standard is met.

Description

A kind of inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection and its application in PBT
Technical field
The invention belongs to Material Field, more particularly to a kind of environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor and its in poly- terephthaldehyde Application in sour butanediol ester composite.
Background technology
At present, diethyl phosphinates are by German Clariant Corporation industrialized production.Phosphinates has good Fire retardation, but its industrial production is relatively complex and costly, limits its using in a large number as fire retardant.Therefore, with secondary phosphine The hypophosphites that hydrochlorate has analog structure is attracted wide attention.Hypophosphites as fire retardant be mainly hypo-aluminum orthophosphate, Hypophosphorous acid lanthanum, cerous hypophosphate.
Hypo-aluminum orthophosphate, its molecular formula is Al (H2PO2)3, its phosphorus content height (41.89%), heat endurance and hydrolytic stability Get well, plus man-hour does not cause the decomposition of polymer, can be used for the fire-retardant of Glass-fiber-reinforcpolybutylene polybutylene terephthalate material; Halogenated flame retardant can be replaced to carry out polyurethane material flame-retardant modified;Can also cooperate with other fire retardants and use, advantage is mutual Mend, effectively improve the fire resistance of material.But hypo-aluminum orthophosphate is in further practical application process, when temperature is higher Micro phosphatization hydrogen release can be produced and put (10ppm), its course of reaction is as follows:Al(H2PO2)3==AlPO4+2PH3.And at home and abroad VOC material objects and management standard in define product component hydrogen phosphide release limit amount:0.08ppm, so as to limit Inorganic hypo-aluminum orthophosphate using in a large number as fire retardant.
The content of the invention
In order to overcome the shortcoming and deficiency of above-mentioned prior art, the primary and foremost purpose of the present invention is to provide a kind of safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Another object of the present invention is to provide the inorganic hypo-aluminum orthophosphate combustion inhibitor of above-mentioned safety and environmental protection in poly terephthalic acid fourth Application in terephthalate composite.
The purpose of the present invention is realized by following proposal:
A kind of environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor, is that inorganic hypo-aluminum orthophosphate is being carried out to add phosphorus while surface is modified Change what hydrogen absorbent was obtained, specifically prepared by following methods:
The aluminum sulfate solution of the one waterside sodium radio-phosphate,P-32 solution of 200mL, 8mol/L and 500mL, 5.5mol/L is mixed, then 70~100 DEG C of isothermal reaction 3h are heated to, the hydrogen phosphide absorbent of 20~30g is added, continuing will after constant temperature 0.5~1h of stirring Temperature is down to 60~90 DEG C, adds 1~5g surfactants, stirs 0.1~0.5h, and cooling is precipitated, filters, by institute Obtain washing of precipitate to be dried, gained powder is environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor.
Described hydrogen phosphide absorbent can be activated carbon, molecular sieve, activated carbon fiber, activated alumina, cupric oxide, oxidation Zinc, nickel chloride, nickel nitrate, nickel sulfate, nickel acetate, postassium hypochlorite, calcium hypochlorite, calcium chloride, active aluminium hydroxide, zinc carbonate, One or more mixtures in talcum powder.
Described surface modifier can be stearic acid, odium stearate, silane coupler, titanate coupling agent, Aluminate idol At least one in connection agent.
Described silane coupler is silane coupler commonly used in the art, preferably methacryloxy front three At least one in TMOS, 3- glycidyl ether oxygen propyl trimethoxy silicanes, Y- aminopropyl triethoxysilanes;It is described Aluminate coupling agent be aluminate coupling agent commonly used in the art, preferably distearyl acyl-oxygen isopropyl Aluminate;Institute The titanate coupling agent stated is titanate coupling agent commonly used in the art, preferably monoalkoxytitanates, pyrophosphate At least one in titanate esters, monoalkoxy unrighted acid titanate esters.
Application of the above-mentioned environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor in polybutylene terephthalate (PBT) composite.
A kind of fire retardant polybutylene terephthalate prepared by above-mentioned environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor Composite, specifically includes the component of following mass fraction:
Described polybutylene terephthalate (PBT) is Jiangsu Changchun 1100-211M;The glass is megalith EDR14- 2000-988A;The lubricant is Tissuemat E;The antioxidant is 1 for 1010,168 in mass ratio:1 mixture.
A kind of preparation method of above-mentioned fire retardant polybutylene terephthalate composite, specifically includes following step Suddenly:
(1) at room temperature, by the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection, lubricant and antioxidant in high-speed mixer In mix 1~10min in 1000r/min~2000r/min, then add described polybutylene terephthalate (PBT) and exist 1000r/min~2000r/min mixes 5~15min, and then discharging is obtained mixed material;
(2) mixed material in step (1) is added in double screw extruder, while side feeding adds glass, 200 DEG C~230 DEG C of extruding pelletizations, then obtained fire retardant polybutylene terephthalate and be combined in 230 DEG C of injections with injection machine Material.
The present invention has the following advantages and beneficial effect relative to prior art:
(1) in the final stage of synthesis hypo-aluminum orthophosphate, hydrogen phosphide absorbent, hydrogen phosphide absorbent is added in the liquid phase, to make Its more preferable absorption is deposited on the hypo-aluminum orthophosphate particulate that reaction is generated, so that both contacts area reach maximization, is had The hydrogen phosphide of hypo-aluminum orthophosphate release is more effectively absorbed in the very first time beneficial to hydrogen phosphide absorbent;
(2) from different stearic acid, odium stearate, silane coupler, aluminate coupling agent, titanate coupling agent to hydrogen Aluminum oxide and hydrogen phosphide absorbent are surface-treated, and improve the heat endurance of inorganic hypo-aluminum orthophosphate, while improving it with tree The compatibility of fat, reduces shearing force in extruding pelletization process, so as to further reduce inorganic time during extruding pelletization Aluminum phosphate discharges hydrogen phosphide, so that the hydrogen phosphide release of inorganic hypo-aluminum orthophosphate fire retardant polybutylene terephthalate compound Minimum is reached, meets hydrogen phosphide release limit amount (0.08ppm) in VOC material objects and management standard.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Agents useful for same can routinely be buied if no special instructions from market in embodiment.It is used in embodiment to gather to benzene two Formic acid butanediol ester is Jiangsu Changchun 1100-211M;Glass used is megalith EDR14-2000-988A.
Each performance parameter is measured in accordance with the following methods in embodiment:
Flame retardant rating:Vertical burn test is carried out according to UL-94;
Tensile strength:According to GB/T 1040-2006;
The method of testing of phosphine release amount is:Sample to be tested 300g is taken, is placed in the hermetic bag of 19*13cm, addition 5~ 10ml water, hermetic bag is sealed, and then hermetic bag is put in 80 DEG C of insulating boxs, is placed and take out after 2hr cooling more than 15min, Detected with hydrogen phosphide detection pipe, the red point of GASTEC manual gas sampling pumps be directed at into 100, extracted 5 times repeatedly, every time between Every 15s.
Embodiment 1
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 10g molecular sieves, 10g cupric oxide are added, continue constant temperature stirring 1h, cool the temperature to 60 DEG C, add 5g bis- Stearoyl keto isopropoxy Aluminate, cooling, obtains white precipitate, filter, washing, be dried after obtain powder for safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound A.
Embodiment 2
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 10g activated carbons, 10g cupric oxide are added, continue constant temperature stirring 1h, cool the temperature to 70 DEG C, add 4g bis- Stearoyl keto isopropoxy Aluminate, cooling, obtains white precipitate, filter, washing, be dried after obtain powder for safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound B.
Embodiment 3
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 20g activated carbon fibers are added, continue constant temperature stirring 0.5h, cool the temperature to 80 DEG C, add 2gY- ammonia third Ethyl triethoxy silicane alkane, cooling, obtains white precipitate, filter, washing, be dried after obtain the inorganic phosphorus that powder is safety and environmental protection Sour aluminium fire retardant.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound C.
Embodiment 4
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 10g activated carbon fibers, 20g cupric oxide are added, continue constant temperature stirring 0.5h, cool the temperature to 80 DEG C, then added Enter 1gY- aminopropyl triethoxysilanes, cool down, obtain white precipitate, filter, washing, be dried after obtain powder for safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound D.
Embodiment 5
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 10g molecular sieves, 20g cupric oxide are added, continue constant temperature stirring 0.5h, cool the temperature to 80 DEG C, added 2gY- aminopropyl triethoxysilanes, cooling, obtain white precipitate, filter, washing, be dried after obtain powder for safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound E.
Embodiment 6
The waterside phosphorus of 200ml mono- is added in the four-neck flask (1L) equipped with reflux condensing tube, electric mixer and thermometer Acid sodium solution (8mol/L).500ml aluminum sulfate solutions (5.5mol/L) are added in sodium hypophosphite solution again.90 DEG C are heated to, After isothermal reaction 3h, 15g molecular sieves, 15g cupric oxide are added, continue constant temperature stirring 0.5h, cool the temperature to 80 DEG C, added 2gY- aminopropyl triethoxysilanes, cooling, obtain white precipitate, filter, washing, be dried after obtain powder for safety and environmental protection Inorganic hypo-aluminum orthophosphate combustion inhibitor.
Then by the inorganic hypo-aluminum orthophosphate combustion inhibitor 200g of safety and environmental protection manufactured in the present embodiment and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, and under room temperature, speed is 2000r/min mixing 3min, then by the poly- terephthaldehydes of 488g Sour butanediol ester is added in high mixer, and speed is 2000r/min mixed at high speed 10min, and discharging is obtained compound.
By material mixed above double screw extruder extruding pelletization, temperature adjusts extruder main frame at 200 DEG C~230 DEG C Frequency is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine To fire retardant polybutylene terephthalate compound F.
Comparative example 1
Inorganic hypo-aluminum orthophosphate combustion inhibitor 200g and 10gH108PE waxes, 1g1010,1g168 are added in high mixer, room temperature Under, speed is 2000r/min mixing 3min, then 488g polybutylene terephthalate (PBT)s is added in high mixer, speed For 2000r/min mixed at high speed 10min, discharging, compound is obtained.
By material mixed above double screw extruder extruding pelletization, at 200 DEG C -230 DEG C, adjustment extruder main frame is frequently for temperature Rate is 300r/min, and feeding frequency is 10Hz, and side feeding adds roving glass fiber 300g.Then obtained in 230 DEG C of injections with injection machine Fire retardant polybutylene terephthalate compound G.
Fire retardant polybutylene terephthalate compound to obtaining in embodiment 1~6 and comparative example 1 hinders Combustion grade, tensile strength and phosphine release amount test, acquired results are as shown in table 1:
Fire retardant polybutylene terephthalate compound (A~G) in the embodiment 1~6 of table 1 and comparative example 1 Performance test data
From table 1 it follows that when the mass fraction of the fire retardant of addition is 20%, 1~6h of embodiment and contrast are real Applying the fire resistance of the fire retardant polybutylene terephthalate compound obtained in example 1 can reach V-0 ranks, and stretch strong Degree makes moderate progress, but because the fire retardant in comparative example 1 is pure hypo-aluminum orthophosphate, does not add hydrogen phosphide absorbent, Also do not carry out surface to hypo-aluminum orthophosphate to be modified, therefore the fire-retardant polybutylene terephthalate prepared in embodiment 1~6 The phosphine release amount of ester complexes reduces more than 98%, and respectively less than 0.08ppm compared to comparative example 1, meets VOC The requirement of hydrogen phosphide release limit amount (0.08ppm) in material object and management standard.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment Limit, other any Spirit Essences without departing from the present invention and the change, modification, replacement made under principle, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (8)

1. the inorganic hypo-aluminum orthophosphate combustion inhibitor of a kind of safety and environmental protection, it is characterised in that:It is to carry out surface to inorganic hypo-aluminum orthophosphate Add what hydrogen phosphide absorbent was obtained while modified.
2. the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection according to claim 1, it is characterised in that specifically by following methods Prepare:
The aluminum sulfate solution of the one waterside sodium radio-phosphate,P-32 solution of 200mL, 8mol/L and 500mL, 5.5mol/L is mixed, is then heated To 70~100 DEG C of isothermal reaction 3h, the hydrogen phosphide absorbent of 20~30g is added, continue constant temperature and stir temperature after 0.5~1h 60~90 DEG C are down to, 1~5g surfactants are added, 0.1~0.5h is stirred, cooling is precipitated, filters, gained is sunk Form sediment and wash drying, gained powder is environment friendly inorganic hypo-aluminum orthophosphate combustion inhibitor.
3. the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection according to claim 1 and 2, it is characterised in that:
Described hydrogen phosphide absorbent is activated carbon, molecular sieve, activated carbon fiber, activated alumina, cupric oxide, zinc oxide, chlorine Change nickel, nickel nitrate, nickel sulfate, nickel acetate, postassium hypochlorite, calcium hypochlorite, calcium chloride, active aluminium hydroxide, zinc carbonate, talcum powder In one or more mixtures.
4. the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection according to claim 1 and 2, it is characterised in that:
Described surface modifier is in stearic acid, odium stearate, silane coupler, titanate coupling agent, aluminate coupling agent At least one.
5. the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection described in any one of Claims 1 to 4 is in polybutylene terephthalate Application in ester composite.
6. what a kind of inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection by described in any one of Claims 1 to 4 was prepared is fire-retardant Polybutylene terephthalate (PBT) composite, it is characterised in that specifically include the component of following mass fraction:
7. fire retardant polybutylene terephthalate composite according to claim 6, it is characterised in that:
Described polybutylene terephthalate (PBT) is Jiangsu Changchun 1100-211M;The glass is megalith EDR14-2000- 988A;The lubricant is Tissuemat E;The antioxidant is 1010,168 by 1:1 mixture.
8. a kind of preparation method of the fire retardant polybutylene terephthalate composite according to claim 6 or 7, its It is characterised by comprising the following steps:
(1) at room temperature, by the inorganic hypo-aluminum orthophosphate combustion inhibitor of safety and environmental protection, lubricant and antioxidant in high-speed mixer 1000r/min~2000r/min mixes 1~10min, then adds described polybutylene terephthalate (PBT) in 1000r/ Min~2000r/min mixes 5~15min, and then discharging is obtained mixed material;
(2) mixed material in step (1) is added in double screw extruder, at the same side feeding add glass, 200 DEG C~ 230 DEG C of extruding pelletizations, then obtain fire retardant polybutylene terephthalate composite with injection machine in 230 DEG C of injections.
CN201611242876.2A 2016-12-29 2016-12-29 Safe and environment-friendly inorganic aluminum hypophosphite flame retardant and application thereof in PBT (polybutylene terephthalate) Pending CN106633187A (en)

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CN109265979A (en) * 2018-09-17 2019-01-25 佛山市森昂生物科技有限公司 A kind of preparation method of the compound imitated wood material of polyurethane plant fiber
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CN109265979A (en) * 2018-09-17 2019-01-25 佛山市森昂生物科技有限公司 A kind of preparation method of the compound imitated wood material of polyurethane plant fiber
CN113980353A (en) * 2021-11-24 2022-01-28 湖北航云科技有限公司 Environment-friendly aluminum hypophosphite flame retardant
CN115073819A (en) * 2022-06-15 2022-09-20 兰州瑞朴科技有限公司 Aluminum phosphate salt flame retardant based on growth nucleus and preparation method and application thereof
CN115073819B (en) * 2022-06-15 2024-05-03 兰州瑞朴科技有限公司 Growth-nucleus-based aluminum phosphate flame retardant, and preparation method and application thereof

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