A kind of efficient resistance to water expanding fire retardant and its application in polypropylene
Technical field
The invention belongs to Material Field, more particularly to a kind of efficiently water-fast sex flame retardant and its in PP composite material
Application.
Background technology
Polypropylene (PP), due to its excellent thermal stability, chemical stability, is electrically insulated as a kind of polymeric material
Property and weatherability etc. are widely used in daily life.Can with injection, extrusion molding, be blow molded, reel off raw silk from cocoons etc. method carry out plus
Work.The various electric components of suitable for making, television set and radio receiver shell, anti-corrosion pipeline, sheet material, automobile component, Turnover Box, establishment
Packaging bag, packing film Strapping Material, various containers, various clothing articles, artificial lawn etc..
But PP easily burns, belong to combustible material, substantial amounts of heat and flue gas can be discharged in combustion and occurs melting drop
Phenomenon, easily ignite surrounding objects, once there is fire, fire-propagation speed is fast, and large area burning is easily caused in the short time,
Come unfavorable to rescue belts, significantly limit the application of PP.
Therefore PP is carried out flame-retardant modified, improves its fire safety in use so as to industry needed for meeting
Flame-retardancy requirements are extremely important.
Currently used for the fire-retardant mainly halogenated flame retardants of PP.The flame retardant effect of this based flame retardant is excellent, but by Europe
The restriction of RoHS bills.Therefore the Non-halogen Flame Retardant Technology that exploitation highly effective flame-retardant, high security, low cigarette, low toxic gas are generated is
It is the development trend of flame retardant area in recent years.
In the middle of Non-halogen Flame Retardant Technology, inorganic hydroxide fire retardant have non-volatile, effect persistently, be not likely to produce corrosion
The advantages of property gas, good nontoxic, heat stability, low production cost, but it is different from the two-phase interface polarity of PP matrixes due to it, and
And addition is big (sometime up to 50~60wt%), causes material mechanical properties decrease itself, so as to limit the flame-retarded technology
Application.
At present in PP halogen-free flame-retardant systems, expandable flame retardant technology is less due to addition, and with nontoxic and Halogen
The advantages of, receive more and more attention.But it is low that existing polypropylene expanding fire retardant still suffers from flame retarding efficiency, poor water resistance,
It is easy to the problems such as separating out.
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 efficiently water-fast
Property expansibility flame-proof agent.
Another object of the present invention is the application for providing above-mentioned polypropylene expanding fire retardant in PP composite material.
The purpose of the present invention is realized by following proposal:
A kind of efficient resistance to water expansibility flame-proof agent, it is mainly prepared by following methods:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
(DOPO) it is added in reaction dissolvent, keeps reaction temperature to react 1h at 100~130 DEG C, obtains TGIC-DOPO pre-polymerization liquid;
Reaction dissolvent used is dichloromethane, dichloroethanes, sym-tetrachloroethane, chloroform, carbon tetrachloride, first in step (1)
One kind in benzene, chlorobenzene, dimethylbenzene, dichloro-benzenes;
Isocyanuric acid three-glycidyl ester (TGIC) used in step (1) and the phospho hetero phenanthrene of-9 oxa- of 9,10- dihydros-10-
The mol ratio of 10- oxides (DOPO) is 1:(3~6);The amount of reaction dissolvent used is isocyanuric acid three-glycidyl ester
(TGIC) 6~10 times of quality.
(2) APP is added in reaction dissolvent, stirs under ultrasound condition and add catalyst after 0.5h, added
The TGIC-DOPO pre-polymerization liquid prepared in step (1), rises high-temperature, keeps reaction temperature at 110~150 DEG C, stirring condition
3~10h of lower reaction, reaction terminate after by reactant liquor purification obtain final product TGIC-DOPO coated ammonium polyphosphates;
Reaction dissolvent used is consistent with reaction dissolvent used in step (1) in step (2);
Catalyst used is cetyl trimethylammonium bromide in step (2);
The quality of APP used is isocyanuric acid three-glycidyl ester (TGIC) matter in step (1) in step (2)
4~10 times of amount;The amount of reaction dissolvent used is isocyanuric acid three-glycidyl ester (TGIC) in step (1) in step (2)
6~10 times of quality;The amount of catalyst used is isocyanuric acid three-glycidyl ester (TGIC) in step (1) in step (2)
The 1% of quality;
Purification described in step (2) refers to gained reactant liquor vacuum distillation, removes reaction dissolvent therein and obtain TGIC-
DOPO coated ammonium polyphosphate crude products, are then added to TGIC-DOPO coated ammonium polyphosphate crude products in cleaning solvent 30
~150 DEG C are followed by stirring and washing 0.1~0.5h, are subsequently cooled to room temperature, staticly settle, and filter, and gained is precipitated into drying
TGIC-DOPO coated ammonium polyphosphates;
Described cleaning solvent is the one kind in ethanol, Hexalin, glycerol, Propylene Glycol, isopropanol, isobutyl alcohol.
The consumption of detergent used is 1~20 times of isocyanuric acid three-glycidyl ester (TGIC) quality in step (1);
(3) it is added in high mixer by the TGIC-DOPO coated ammonium polyphosphates of gained in step (2) and into charcoal accelerator,
Discharge after 10~20min of mixed at high speed, obtain final product efficient resistance to water expanding fire retardant.
In step (3) it is used into charcoal accelerator be Firebrake ZB, boric acid, manganese dioxide, silicon dioxide, lanthanum oxide, oxygen
Change zinc, antimony trioxide, zirconium dioxide, molybdenum oxide, magnesium hydroxide, aluminium hydroxide, brucite, layered hydroxide, nanometer and cover de-
One or more mixture in soil, 4A molecular sieves.
TGIC-DOPO coated ammonium polyphosphates used and the amount into charcoal accelerator are that TGIC-DOPO claddings are poly- in step (3)
Ammonium phosphate accounts for TGIC-DOPO coated ammonium polyphosphates and into the 95~99% of charcoal accelerator gross mass.
Application of the above-mentioned efficient resistance to water expansibility flame-proof agent in polypropylene composite.
A kind of flame-retardant polypropylene composite material prepared by above-mentioned efficient resistance to water expansibility flame-proof agent, it includes
The composition of following percentage by weight:
Described polypropylene is one or more mixture in HOPP, COPP.
Described lubricant is one or more mixture in PE waxes, stearic acid, silicone powder.
Described coupling agent is the one kind in silane coupler, aluminate coupling agent, titanate coupling 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 unsaturated fatty acid titanate esters.
Described antioxidant is one or more mixture in 1010,1076,168.
A kind of preparation method of above-mentioned flame-retardant polypropylene composite material, specifically includes following steps:At room temperature, will be upper
The resistance to water expanding fire retardant stated and coupling agent are added in high-speed mixer, in 1000r/min~2000r/min mixing
3min, then adds polypropylene, lubricant and antioxidant, then in 1000r/min~2000r/min mixing 10min, must mix
Material, by gained compound double screw extruder in 160 DEG C~180 DEG C extruding pelletizations, is then molded with injection machine at 180 DEG C,
Obtain anti-flaming polypropylene composite.
The present invention has the following advantages and beneficial effect relative to prior art:
(1) present invention is obtained the three-in-one expanding fire retardant of high phosphorus nitrogen content with TGIC-DOPO coated ammonium polyphosphates,
While flame retarding efficiency is improved fire retardant can be significantly improved with the polyacrylic compatibility, resistance to water, thermostability;
(2) in order to further improve flame retarding efficiency, reduce addition, the present invention further preferably into charcoal accelerator, so as to enter
One step improves the combination property of composite:In addition, less than 25%, (conventional expanded fire retardant needs 30%, reaches 1.6mm resistances
Combustion V-0), composite can just pass through UL-94V-0 (1.6mm).
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Reagent used can routinely be buied if no special instructions from market in embodiment.APP used in embodiment
Polymerization degree n >=1000.
Embodiment 1
The efficiently preparation of resistance to water expanding fire retardant:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
DOPO is 1 according to mol ratio:3 are added in dichloromethane, and the consumption of dichloromethane is 10 times of TGIC mass used, keep anti-
Answer temperature to react 1h at 130 DEG C, obtain TGIC-DOPO pre-polymerization liquid standby;
(2) APP is added in dichloromethane, the consumption of dichloromethane is 10 of TGIC mass used in step (1)
Times, APP consumption is 4 times of TGIC mass used in step (1), and 0.5h is stirred under ultrasound condition, adds hexadecane
Base trimethylammonium bromide, consumption is the 1% of TGIC mass used in step (1).It is subsequently adding (1) gained TGIC-DOPO pre-
Poly- liquid, rises high-temperature, keeps reaction temperature at 110 DEG C, and under stirring condition 10h is reacted;
(3) vacuum distillation removes dichloromethane, obtains TGIC-DOPO coated ammonium polyphosphate crude products;
(4) TGIC-DOPO coated ammonium polyphosphate crude products are added in ethanol, the consumption of solvent contracts for isocyanuric acid three
10 times of water glyceride quality, maintain the temperature at 50 DEG C, and agitator treating is cooled to room temperature, staticly settles, and obtain after filtering drying
Product TGIC-DOPO coated ammonium polyphosphates;
(5) the TGIC-DOPO coated ammonium polyphosphates that mass fraction is 95% and the Firebrake ZB that mass fraction is 5% are added
In high mixer, at a high speed mixed 20min, discharging, obtain final product efficient resistance to water expanding fire retardant a.
The preparation of anti-flaming polypropylene composite:
(1) by efficient resistance to water expanding fire retardant 220g and 10g methacryloxy trimethoxy manufactured in the present embodiment
Base silane add high mixer in, under room temperature, speed be 2000r/min mixing 3min, then by 780gZ30S polypropylene,
10gH108PE waxes, 3g1010 are added in high mixer, and speed is 2000r/min mixed at high speed 10min.
(2) by material double screw extruder mixed above in 160 DEG C~180 DEG C extruding pelletizations, then with injection machine 180
DEG C injection, obtain anti-flaming polypropylene composite A.
Embodiment 2
The efficiently preparation of resistance to water expanding fire retardant:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
DOPO is 1 according to mol ratio:6 add in dichloromethane, and the consumption of dichloromethane is 6 times of TGIC mass used, keep reaction
Temperature reacts 1h at 100 DEG C, obtains TGIC-DOPO pre-polymerization liquid standby;
(2) APP is added in dichloromethane, the consumption of dichloromethane is TGIC mass used in step (1)
6 times, APP consumption is 10 times of TGIC mass used in step (1), and 0.5h is stirred under ultrasound condition, adds 16
Alkyl trimethyl ammonium bromide, consumption is the 1% of TGIC mass used in step (1).It is subsequently adding (1) gained TGIC-DOPO
Pre-polymerization liquid, rises high-temperature, keeps reaction temperature at 120 DEG C, and under stirring condition 10h is reacted;
(3) vacuum distillation removes dichloromethane and obtains TGIC-DOPO coated ammonium polyphosphate crude products;
(4) TGIC-DOPO coated ammonium polyphosphate crude products are added in ethanol, the consumption of solvent is the 10 of TGIC mass
Times, 60 DEG C are maintained the temperature at, agitator treating is cooled to room temperature, staticly settles, and product TGIC-DOPO bags are obtained after filtering drying
Cover APP.
(5) the TGIC-DOPO coated ammonium polyphosphates that mass fraction is 95% and the Zinc Oxide that mass fraction is 5% are added
In high mixer, at a high speed mixed 10min, discharging, obtain final product efficient resistance to water expanding fire retardant b.
The preparation of anti-flaming polypropylene composite:
(1) by efficient resistance to water expanding fire retardant 220g and 10g methacryloxy trimethoxy manufactured in the present embodiment
Base silane add high mixer in, under room temperature, speed be 2000r/min mixing 3min, then by 780gZ30S polypropylene,
10gH108PE waxes, 3g1010 are added in high mixer, and speed is 2000r/min mixed at high speed 10min.
(2) by material double screw extruder mixed above in 160 DEG C~180 DEG C extruding pelletizations, then with injection machine 180
DEG C injection, obtain anti-flaming polypropylene composite B.
Embodiment 3
The efficiently preparation of resistance to water expanding fire retardant:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
DOPO is 1 according to mol ratio:5 add chlorobenzene, and the consumption of chlorobenzene is 10 times of TGIC mass used, keep reaction temperature 110
DEG C reaction 1h, obtain TGIC-DOPO pre-polymerization liquid standby;
(2) APP is added in (1) described chlorobenzene, the consumption of chlorobenzene is the 6 of TGIC mass used in step (1)
Times, APP consumption is 8 times of TGIC mass used in step (1), and 0.5h is stirred under ultrasound condition, adds hexadecane
Base trimethylammonium bromide, consumption is the 1% of TGIC mass used in step (1).It is subsequently adding (1) gained TGIC-DOPO pre-
Poly- liquid, rises high-temperature, keeps reaction temperature at 130 DEG C, and under stirring condition 10h is reacted;
(3) vacuum distillation removes reaction dissolvent and obtains TGIC-DOPO coated ammonium polyphosphate crude products;
(4) TGIC-DOPO coated ammonium polyphosphate crude products are added in ethanol, the consumption of solvent is the 10 of TGIC mass
Times, 60 DEG C are maintained the temperature at, agitator treating is cooled to room temperature, staticly settles, and product TGIC-DOPO bags are obtained after filtering drying
Cover APP.
(5) the TGIC-DOPO coated ammonium polyphosphates that mass fraction is 97% and the Firebrake ZB that mass fraction is 3% are added
In high mixer, at a high speed mixed 15min, discharging, obtain final product efficient resistance to water expanding fire retardant c.
The preparation of anti-flaming polypropylene composite:
(1) by efficient resistance to water expanding fire retardant 220g and 10g methacryloxy trimethoxy manufactured in the present embodiment
Base silane add high mixer in, under room temperature, speed be 2000r/min mixing 3min, then by 780gZ30S polypropylene,
10gH108PE waxes, 3g1010 are added in high mixer, and speed is 2000r/min mixed at high speed 10min.
(2) by material double screw extruder mixed above in 160 DEG C~180 DEG C extruding pelletizations, then with injection machine 180
DEG C injection, obtain anti-flaming polypropylene composite C.
Embodiment 4
The efficiently preparation of resistance to water expanding fire retardant:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
DOPO is 1 according to mol ratio:4 add chlorobenzene, and the consumption of chlorobenzene is 10 times of TGIC mass used, keep reaction temperature 110
DEG C reaction 1h, obtain TGIC-DOPO pre-polymerization liquid standby;
(2) APP is added in (1) described chlorobenzene, the consumption of chlorobenzene is the 6 of TGIC mass used in step (1)
Times, APP consumption is 9 times of TGIC mass used in step (1), and 0.5h is stirred under ultrasound condition, adds hexadecane
Base trimethylammonium bromide, consumption is the 1% of TGIC mass used in step (1).It is subsequently adding (1) gained TGIC-DOPO pre-
Poly- liquid, rises high-temperature, keeps reaction temperature at 130 DEG C, and under stirring condition 10h is reacted;
(3) vacuum distillation removes reaction dissolvent and obtains TGIC-DOPO coated ammonium polyphosphate crude products;
(4) TGIC-DOPO coated ammonium polyphosphate crude products are added in isopropanol, the consumption of isopropanol is TGIC mass
10 times, maintain the temperature at 60 DEG C, agitator treating is cooled to room temperature, staticly settles, after filtering drying obtain product TGIC-
DOPO coated ammonium polyphosphates.
(5) the TGIC-DOPO coated ammonium polyphosphates that mass fraction is 97% and the brucite that mass fraction is 3% are added
In high mixer, at a high speed mixed 10min, discharging, obtain final product efficient resistance to water expanding fire retardant d.
The preparation of anti-flaming polypropylene composite:
(1) by efficient resistance to water expanding fire retardant 220g and 10g methacryloxy trimethoxy manufactured in the present embodiment
Base silane add high mixer in, under room temperature, speed be 2000r/min mixing 3min, then by 780gZ30S polypropylene,
10gH108PE waxes, 3g1010 are added in high mixer, and speed is 2000r/min mixed at high speed 10min.
(2) by material double screw extruder mixed above in 160 DEG C of -180 DEG C of extruding pelletizations, then with injection machine 180
DEG C injection, obtain anti-flaming polypropylene composite D.
Embodiment 5
The efficiently preparation of resistance to water expanding fire retardant:
(1) by isocyanuric acid three-glycidyl ester (TGIC) and the phospho hetero phenanthrene -10- oxides of -9 oxa- of 9,10- dihydros -10
DOPO is 1 according to mol ratio:3 add chlorobenzene, and the consumption of chlorobenzene is 10 times of TGIC mass used, keep reaction temperature 110
DEG C reaction 1h, obtain TGIC-DOPO pre-polymerization liquid standby;
(2) APP is added in (1) described chlorobenzene, the consumption of chlorobenzene is the 6 of TGIC mass used in step (1)
Times, APP consumption is 6 times of TGIC mass used in step (1), and 0.5h is stirred under ultrasound condition, adds hexadecane
Base trimethylammonium bromide, consumption is the 1% of TGIC mass used in step (1).It is subsequently adding (1) gained TGIC-DOPO pre-
Poly- liquid, rises high-temperature, keeps reaction temperature at 130 DEG C, and under stirring condition 10h is reacted;
(3) vacuum distillation removes reaction dissolvent and obtains TGIC-DOPO coated ammonium polyphosphate crude products;
(4) TGIC-DOPO coated ammonium polyphosphate crude products are added in isopropanol, the consumption of isopropanol is TGIC mass
10 times, maintain the temperature at 60 DEG C, agitator treating is cooled to room temperature, staticly settles, after filtering drying obtain product TGIC-
DOPO coated ammonium polyphosphates.
(5) the TGIC-DOPO coated ammonium polyphosphates that mass fraction is 97% and the 4A molecular sieves that mass fraction is 3% are added
In entering high mixer, at a high speed mixed 10min, discharging, obtain final product efficient resistance to water expanding fire retardant e.
The preparation of anti-flaming polypropylene composite:
(1) by efficient resistance to water expanding fire retardant 220g and 10g methacryloxy trimethoxy manufactured in the present embodiment
Base silane add high mixer in, under room temperature, speed be 2000r/min mixing 3min, then by 780gZ30S polypropylene,
10gH108PE waxes, 3g1010 are added in high mixer, and speed is 2000r/min mixed at high speed 10min.
(2) by material double screw extruder mixed above in 160 DEG C of -180 DEG C of extruding pelletizations, then with injection machine 180
DEG C injection, obtain anti-flaming polypropylene composite E.
Comparative example 1
Traditional expanding fire retardant 220g and 10g methacryloxy trimethoxy silane is added in high mixer, room
Under temperature, speed is 2000r/min mixing 3min, then 780gZ30S polypropylene, 10gH108PE waxes, 3g1010 is added to into height
In mixed machine, speed is 2000r/min mixed at high speed 10min.Conventional expanded fire retardant APP in mass ratio:Tripolycyanamide:
Poly- penta tetrol (Yunnan Yuntianhua Co., Ltd.)=3:1:1 mixes f.
By material double screw extruder mixed above in 160 DEG C~180 DEG C extruding pelletizations, then with injection machine at 180 DEG C
Injection, obtains anti-flaming polypropylene composite F.
The expanding fire retardant prepared in embodiment 1~5 and comparative example 1 is carried out with thermogravimetric analyzer (TGA)
Thermally-stabilised test, method of testing is:Under nitrogen atmosphere, temperature rises to 800 DEG C from room temperature, 10 DEG C/min of heating rate, gas
Rate of flow of fluid 60ml/min, 3~5mg of sample quality, when record fire retardant weightlessness is 1%, corresponding temperature is that temperature is decomposed in starting
Degree.Test result is as shown in table 1:
The thermal stability data of the expanding fire retardant prepared in the embodiment 1~5 of table 1 and comparative example 1
Performance |
a |
b |
c |
d |
e |
f |
Initial decomposition temperature DEG C |
265 |
264 |
267 |
275 |
275 |
230 |
From table 1 it follows that the heat resistance of the efficient resistance to water expanding fire retardant prepared in embodiment 1~5
Better than conventional expanded fire retardant, initial decomposition temperature rises to more than 260 DEG C by 230 DEG C of conventional expanded fire retardant.
The anti-flaming polypropylene composite that embodiment 1~5 and comparative example 1 prepare is made into test bars, then
Vertical burn test is carried out by UL-94, materials water-resistant test is carried out by UL746C, carries out oxygen index (OI) by GB/T 2408-2008
Test, carry out tensile strength test by GB/T 1040-2006.As a result it is as shown in table 2:
The properties data of prepared anti-flaming polypropylene composite in the embodiment 1~5 of table 2 and comparative example 1
From Table 2, it can be seen that with TGIC-DOPO coated ammonium polyphosphates in the embodiment of the present invention 1~5, high phosphorus nitrogen is obtained
The three-in-one expanding fire retardant of content, the resistance to water of the flame-retardant polypropylene composite material prepared using the fire retardant is better than
The flame-retardant polypropylene composite material prepared with conventional flame retardant in comparative example 1:Through UL746 water resistance tests
Afterwards, embodiment A-E can keep flame retardant rating to reach V-0, and oxygen index (OI) reduces being maintained within 1.7%, and comparative example F is then
Flame retardant rating drops to HB from V-1, and oxygen index (OI) reduces 3%.And when fire retardant addition is 22wt%, embodiment is reachable
To 1.6mm UL-94 V-0 ranks.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment
Limit, other any spirit 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.