CN103555185B - Surface flame retardant and preparation method thereof - Google Patents
Surface flame retardant and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of Surface flame retardant and preparation method thereof, Surface flame retardant comprises A/B two component, preparation method comprises thinner, dispersion agent, adhesion promoter, chainextender, halogen-free flameproof polyethers, liquid flame retardant and fire-retardant filler mix and blend is obtained thick mill base, thick mill base is ground to form thin mill base, in thin mill base, add radical polymerization inhibitor, UV light absorber, catalyzer and defoamer stir, obtain component A; Isocyanates solidifying agent and other auxiliary agent are added in thinner and stirs, obtain B component; By A, B component mix and blend, obtain Surface flame retardant.Anti-flaming dope of the present invention has the advantage of highly effective flame-retardant, low-smoke low-toxicity, good weatherability, long service life, and preparation method's technique is simple, be easy to large-scale production and production cost is lower.
Description
Technical field
The invention belongs to field of polymer material preparing technology, particularly relate to a kind of low-smoke low-toxicity Surface flame retardant and preparation method thereof.
Background technology
Universal along with high-speed transit logistics, rapid obtains vigorous growth, and the application that wherein rubber subtracts vibration insolation means is performed meritorious deeds never to be obliterated.Traditional metal spring subtracts the damping hysteresis quality of vibration piece and the restriction of damping force size, is difficult to adapt to the roadability of high speed Train and the comfortableness of occupant.Metal-rubber subtracts vibration piece and is applied to the above-mentioned defect that the vehicles can solve damping capacity, but due to the restriction of the performance of rubber own, its flame retardant properties is poor, i.e. incendivity under middle high temperature, and burning has self hastening phenomenon.The modified rubber formula that interpolation fire retardant obtains can obtain certain flame retardant properties, but huge for the damping capacity impact of product, completely loses damping capacity even.
Subtract vibration piece for the narrow restricted space, consider evacuation and the rescue of personnel, the delay of fire spreading is very important.Such as operate in the vehicles of the narrow restricted space, especially railcar, the train groups in tunnel, the engine room etc. of cabin, before air becomes the too large and visibility step-down of toxicity, more times can be had to evacuate passenger.Even fire only postpones several minutes even a few second, tens can be saved, the fresh and alive life of up to a hundred.Subway and high ferro are the vehicles of China and world's fast development, impel rubber to subtract the fire-retardant demand of vibration isolation element extremely urgent.
At present, research, the production development of domestic and international anti-flaming dope are very fast, and the kind of anti-flaming dope is a lot.Substantially can be divided into two large classes: the building coating that a class is is fire retardant with inorganic salts, oxide compound, mineral powders, this kind of coating flame retardant properties is good, cost is low, and coating is generally thicker, and beautiful decoration is inadequate, visco-elasticity is not mated with rubber, is not suitable for doing rubber fire-resistant coating; Another kind of is organic fire-resisting coating, this coating adopts the fire-retardant resin of intrinsic to configure coating or to add fire retardant to configure anti-flaming dope in organic coating, this coating is mainly used in the fire protection design of steel construction, is static rigid structure topcoating.Be not specially also the frie retardant coating of the soft base material design under kinestate at present both at home and abroad.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art; the Surface flame retardant of a kind of highly effective flame-retardant, low-smoke low-toxicity, good weatherability, long service life is provided, also provide a kind of technique simple and ripe, be easy to large-scale production and the preparation method of the lower Surface flame retardant of production cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is a kind of Surface flame retardant, described Surface flame retardant by component A and B component formulated according to the weight ratio of 2 ~ 4: 1;
Described component A is formed by the preparation of raw material of thinner and following weight part:
The solid content of described component A is 60% ~ 80%, and in described component A, each parts by weight of raw materials summation except thinner is 100 parts;
Described B component is formed by the preparation of raw material of thinner and following weight part:
95.5 ~ 99.6 parts, isocyanates solidifying agent, and
Other auxiliary agent 0.4 ~ 4.5 part,
The solid content of described B component is 70% ~ 85%, and in described B component, each parts by weight of raw materials summation except thinner is 100 parts.
In above-mentioned Surface flame retardant, preferably, described chainextender is one or more in polyaspartic ester, quinhydrones-bis-(beta-hydroxyethyl) ether, trihydroxy methyl propane, trolamine, two (2-hydroxypropyl) aniline of N, N-, diethyl toluene diamine; Described halogen-free flameproof polyethers is nitrogenous halogen-free flameproof polyethers, and described fire-retardant filler is one or more in ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, magnesium hydroxide, aluminium hydroxide, titanium dioxide, carbon black; Described liquid flame retardant is phosphorus flame retardant, and described phosphorus flame retardant comprises dimethyl methyl phosphonate or diethyl ethylphosphate.
In above-mentioned Surface flame retardant, preferably, described UV light absorber is 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-5-chlorinated benzotriazole or Octabenzone; Described radical polymerization inhibitor is two Lauryl Alcohol ester or 2,6 di tert butyl 4 methyl phenol; Described catalyzer is organotin catalysts or organic bismuth catalyst.
In above-mentioned Surface flame retardant, preferably, described dispersion agent is one or more in BYK-161 dispersion agent, BYK-163 dispersion agent, BYK-2000 dispersion agent; Described adhesion promoter is Yi Shiman CP-343-1 and/or Yi Shiman CP-343-3.
In above-mentioned Surface flame retardant, preferably, described isocyanates solidifying agent by mass ratio be 3 ~ 1: 1 ~ 3 isocyanate-monomer or isocyanic ester polymer and Isocyanate prepolymers body (i.e. isocyanate-monomer and Isocyanate prepolymers body or isocyanic ester polymer and Isocyanate prepolymers body) form; Described Isocyanate prepolymers body is that isocyanate-monomer and polyether glycol or polyester polyol are polymerized.
In above-mentioned Surface flame retardant, preferably, described isocyanic ester polymer comprises hexamethylene diisocyanate tripolymer, described isocyanate-monomer comprises xylylene diisocyanate, isophorone diisocyanate, naphthalene diisocyanate or diphenylmethanediisocyanate, and described polyether glycol comprises polytetrahydrofuran and/or poly(propylene oxide); Described polyester polyol comprises polycarbonate and/or polycaprolactone.
In above-mentioned Surface flame retardant, preferably, other auxiliary agent described is one or more in defoamer, flow agent, anti-settling agent; Described defoamer is one or more in BYK-019 defoamer, BYK-024 defoamer, BYK-028 defoamer; Described flow agent is one or more in BYK-356 flow agent, BYK-358N flow agent, BYK-359 flow agent; Described anti-settling agent is one or more in BYK-410 anti-settling agent, BYK-430 anti-settling agent, BYK-405 anti-settling agent.
In above-mentioned Surface flame retardant, preferably, described thinner is the mixture of 150# solvent oil (i.e. No. 150 solvent oils), 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE.
As a total technical conceive, the present invention also provides a kind of preparation method of above-mentioned Surface flame retardant, comprises the following steps:
(1) preparation of component A: thinner, dispersion agent and adhesion promoter are mixed and stirs, then in gained mixture, chainextender, halogen-free flameproof polyethers, liquid flame retardant and fire-retardant filler is added, after mix and blend, obtain thick mill base, thick mill base is ground to granularity≤50 μm, obtains thin mill base, in thin mill base, add radical polymerization inhibitor, UV light absorber, catalyzer and other auxiliary agent, dispersed with stirring is even, obtains component A;
(2) preparation of B component: isocyanates solidifying agent and other auxiliary agent are added in thinner and stirs, obtain B component;
(3) preparation of Surface flame retardant: above-mentioned component A and B component mixed and stirs, obtaining Surface flame retardant.
In above-mentioned preparation method, preferably, in step (1), the time of described mix and blend is 30min ~ 45min, the speed of mix and blend is 450r/min ~ 600r/min, and the speed of described grinding is 1800r/min ~ 2000r/min, and the time of grinding is 2h ~ 2.5h.
Compared with prior art, the invention has the advantages that:
Surface flame retardant of the present invention is organic/inorganic composite flame-proof coating, ensures that it has highly effective flame-retardant effect when not reducing mechanical property, and vertical combustion grade is V-0 level, and oxygen index can reach 33; Anti-flaming dope of the present invention has the features such as snappiness, low cigarette, low toxicity, low-corrosiveness, and does not produce hydrogen halide and SO during burning
2deng poisonous gas, low cigarette and low toxicity successful; Anti-flaming dope good weatherability of the present invention, long service life, its weathering resistance, at more than 1000h, saves maintenance cost, is the elastic flame coating that desirable metal-rubber subtracts vibration insolation means.
The preparation method of Surface flame retardant of the present invention has the simple and relative maturity of technique, be easy to large-scale production and do not increase the feature of production cost.
Design of the present invention is added efficient flame-retarding agent to prepare and is had better viscoelastic highly effective flame-retardant coating in the high resilience polyurethane resin matrix that intrinsic is fire-retardant, to solve motion match and the sticking power that anti-flaming dope and metal-rubber subtract vibration piece.
Smoke density data sheet when table 1 is Surface flame retardant of the present invention burning; Aerosol gases component list (standard is DIN5510) when table 2 is Surface flame retardant of the present invention burnings:
Table 1 smoke density data sheet
| Mean value/mgm -3 | Standard value/mgm -3 | |
| D S,Max | 140～222 | 600 |
Table 2 aerosol gases component list
| Mean value/mgm -3 | Standard value (4min)/mgm -3 | |
| CO 2 | 4035～8426 | <72000 |
| CO | 40～105 | <1380 |
| NO 2 | 3～5 | <25 |
| SO 2 | 2～5 | <75 |
| HCl | 0～3 | <99 |
| HF | 0～1 | <55 |
| HBr | 3～5 | <38 |
| HCN | 2～4 | <262 |
| Smoke toxicity index | 0.031～0.037 | ≤1 |
Embodiment
Below in conjunction with concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
Embodiment 1:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 2: 1, the solid content of component A is 70wt%, and the solid content of B component is 75wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 20 parts of fire-retardant fillers comprise 10.5 parts of ammonium polyphosphates, 5.0 parts of tetramethylolmethanes, 2.0 parts of titanium dioxides and 2.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that the thinner of component A is 1: 1: 1 by mass ratio form;
B component is formed (other parts by weight of raw materials sum except thinner is 100 parts) by the preparation of raw material of following weight part:
Above-mentioned 99.6 parts of isocyanates solidifying agent comprise 49.8 parts of hexamethylene diisocyanate tripolymers and 49.8 parts of isophorone diisocyanate-polytetrahydrofuran performed polymers,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that the thinner of B component is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, each material composition is the same, comprises the following steps:
(1) preparation of component A:
(1.1) polyaspartic ester and halogen-free flameproof polyethers POP-290 are placed in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black) are placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-163 dispersion agent and Yi Shiman CP-343-1 adhesion promoter and stir, add polyaspartic ester, halogen-free flameproof polyethers POP-290 again, dimethyl methyl phosphonate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black), mix and blend 30min, stirring velocity is 450r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 50 μm, grinding rate is 1800r/min, milling time is 2h, thin mill base is obtained through filtering after grinding, 2 are added in thin mill base, 6-di-tert-butyl-4-methy phenol, 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-5-chlorinated benzotriazole, organic bismuth catalyst BiCAT8106, BYK-019 defoamer, BYK-356 flow agent and BYK-405 anti-settling agent, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: thinner is added in agitator, then hexamethylene diisocyanate tripolymer and isophorone diisocyanate-polytetrahydrofuran performed polymer (i.e. isocyanates solidifying agent), BYK-024 defoamer and BYK-356 flow agent is added to containing in the agitator of thinner, after stirring, obtain B component;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 2: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then Surface flame retardant prepared by above-mentioned the present embodiment is sprayed at rubber surface, after component A in anti-flaming dope and B component solidification, recording flame retardant coating thick is 43 μm, as follows to the test result of flame retardant coating:
Tensile strength is 5.2MPa, and elongation at break is 215%, and wear(ing)value (750g/500r) is 58mg, and sticking power is 0 grade, and vertical combustion grade is V-0 level, and oxygen index is 31, smoke density D
s, Maxbe 174, smoke toxicity CO
2be 5628, CO be 52, NO
2be 3, SO
2be 2, HCl be 0, HF be 0, HBr be 3, HCN be 2, smoke toxicity index is 0.034, and the unit of smoke density and aerosol gases composition is mgm
-3.
Embodiment 2:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 2: 1, the solid content of component A is 70wt%, and the solid content of B component is 85wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 20 parts of fire-retardant fillers comprise 10.5 parts of ammonium polyphosphates, 5.0 parts of tetramethylolmethanes, 2.0 parts of titanium dioxides and 2.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form;
B component is formed by the preparation of raw material of following weight part:
Above-mentioned isocyanates solidifying agent is made up of 33.2 parts of diphenylmethanediisocyanates and 66.4 parts of xylylene diisocyanate-polycaprolactone prepolymers bodies,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, comprises the following steps:
(1) preparation of component A:
(1.1) two to N, N-(2-hydroxypropyl) aniline and halogen-free flameproof polyethers POP-290 are placed in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler are placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-161 dispersion agent and Yi Shiman CP-343-3 adhesion promoter and stir, add a part N again, N-two (2-hydroxypropyl) aniline, halogen-free flameproof polyethers POP-290, diethyl ethylphosphate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black), mix and blend 45min, stirring velocity is 500r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 45 μm, grinding rate is 2000r/min, milling time is 2.5h, thin mill base is obtained through filtering after grinding, two Lauryl Alcohol ester, Octabenzone, organic bismuth catalyst BiCAT8106, BYK-019 defoamer, BYK-358N flow agent and BYK-410 anti-settling agent is added in thin mill base, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: thinner is added in agitator, then in agitator, add diphenylmethanediisocyanate and xylylene diisocyanate-polycaprolactone prepolymers body, BYK-024 defoamer and BYK-358N flow agent, after stirring, obtain B component;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 2: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then spray Surface flame retardant prepared by above-mentioned the present embodiment at rubber surface, flame retardant coating is thick is 60 μm, as follows to the test result of flame retardant coating:
Tensile strength is 5.6MPa; Elongation at break is 184%, and wear(ing)value is (750g/500r) is 52mg, and sticking power is 0 grade, and vertical combustion grade is V-1 level, and oxygen index is 29, smoke density D
s, Maxbe 210, smoke toxicity CO
2be 5941, CO be 78; NO
2be 3; SO
2be 4; HCl is 0; HF is 1; HBr is 3; HCN is 2, and smoke toxicity index is 0.036, and the unit of smoke density and aerosol gases composition is mgm
-3.
Embodiment 3:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 3: 1, the solid content of component A is 80wt%, and the solid content of B component is 75wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 30 parts of fire-retardant fillers comprise 16.5 parts of ammonium polyphosphates, 7.5 parts of tetramethylolmethanes, 2.5 parts of titanium dioxides and 3.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form;
B component is formed by the preparation of raw material of following weight part:
Above-mentioned 99.6 parts of isocyanates solidifying agent comprise 49.8 parts of hexamethylene diisocyanate tripolymers and 49.8 parts of isophorone diisocyanate-polytetrahydrofuran performed polymers,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, comprises the following steps:
(1) preparation of component A:
(1.1) by polyaspartic ester and halogen-free flameproof polyethers POP-290 in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler is placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-2000 dispersion agent and Yi Shiman CP-343-1 adhesion promoter and stir, add polyaspartic ester, halogen-free flameproof polyethers POP-290 again, dimethyl methyl phosphonate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black), mix and blend 45min, stirring velocity is 600r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 30 μm, grinding rate is 1900r/min, milling time is 2h, thin mill base is obtained through filtering after grinding, two Lauryl Alcohol ester, Octabenzone, organic bismuth catalyst BiCAT8106, BYK-028 defoamer, BYK-358N flow agent and 0.1 portion of BYK-410 anti-settling agent is added in thin mill base, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: added by thinner in agitator, then adds hexamethylene diisocyanate tripolymer and naphthalene diisocyanate-polytetrahydrofuran performed polymer, BYK-019 defoamer and BYK-359 flow agent, after stirring, obtains B component in agitator;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 3: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then spray Surface flame retardant prepared by above-mentioned the present embodiment at rubber surface, flame retardant coating is thick is 42 μm, as follows to the test result of flame retardant coating:
Tensile strength is 6.2MPa, and elongation at break is 165%, and wear(ing)value is (750g/500r) is 47mg, and sticking power is 0 grade, and vertical combustion grade is V-0 level, and oxygen index is 31, smoke density D
s, Maxbe 191, smoke toxicity CO
2be 4438, CO be 51, NO
2be 3, SO
2be 2, HCl be 0, HF be 0, HBr be 3, HCN be 2, smoke toxicity index is 0.035, and the unit of smoke density and aerosol gases composition is mgm
-3.
Embodiment 4:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 4: 1, the solid content of component A is 80wt%, and the solid content of B component is 70wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 30 parts of fire-retardant fillers comprise 15.5 parts of ammonium polyphosphates, 10.5 parts of tetramethylolmethanes, 1.5 parts of titanium dioxides and 2.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form;
B component is formed by the preparation of raw material of following weight part:
Above-mentioned 99.6 parts of isocyanates solidifying agent comprise 74.7 parts of diphenylmethanediisocyanates and 24.9 parts of xylylene diisocyanate-polycarbonate prepolymer bodies,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, comprises the following steps:
(1) preparation of component A:
(1.1) trihydroxy methyl propane and halogen-free flameproof polyethers POP-290 are placed in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler are placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-163 dispersion agent and Yi Shiman CP-343-3 adhesion promoter and stir, add trihydroxy methyl propane, halogen-free flameproof polyethers POP-290, dimethyl methyl phosphonate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black) again, mix and blend 30min, stirring velocity is 500r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 40 μm, grinding rate is 1900r/min, milling time is 2.5h, thin mill base is obtained through filtering after grinding, 2 are added in thin mill base, 6-di-tert-butyl-4-methy phenol, Octabenzone, organic bismuth catalyst BiCAT8106, BYK-028 defoamer, BYK-358N flow agent and BYK-405 anti-settling agent, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: thinner is added in agitator, then diphenylmethanediisocyanate and xylylene diisocyanate-polycarbonate prepolymer body, BYK-024 defoamer and BYK-356 flow agent is added to containing in the agitator of thinner, after stirring, obtain B component;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 4: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then spray Surface flame retardant prepared by above-mentioned the present embodiment at rubber surface, flame retardant coating is thick is 58 μm, as follows to the test result of flame retardant coating:
Tensile strength is 6.5MPa, and elongation at break is 136%, and wear(ing)value is (750g/500r) is 35mg, and sticking power is 0 grade, and vertical combustion grade is V-0 level, and oxygen index is 33, smoke density D
s, Maxbe 140, smoke toxicity CO
2be 4035, CO be 40, NO
2be 3, SO
2be 2, HCl be 0, HF be 0, HBr be 3, HCN be 2, smoke toxicity index is 0.031, and the unit of smoke density and aerosol gases composition is mgm
-3.
Embodiment 5:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 3: 1, the solid content of component A is 70wt%, and the solid content of B component is 80wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 19 parts of fire-retardant fillers comprise 10.5 parts of ammonium polyphosphates, 3.5 parts of tetramethylolmethanes, 2.5 parts of titanium dioxides and 2.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form;
B component is formed by the preparation of raw material of following weight part:
Above-mentioned 99.6 parts of isocyanates solidifying agent comprise 66.4 parts of hexamethylene diisocyanate tripolymers and 33.2 parts of naphthalene diisocyanate-polytetrahydrofuran performed polymers,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, comprises the following steps:
(1) preparation of component A:
(1.1) polyaspartic ester and halogen-free flameproof polyethers POP-290 are placed in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler are placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-161 dispersion agent and Yi Shiman CP-343-1 adhesion promoter and stir, add polyaspartic ester, halogen-free flameproof polyethers POP-290, diethyl ethylphosphate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black) again, remix stirs 30min, stirring velocity is 450r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 35 μm, grinding rate is 1800r/min, milling time is 2.5h, thin mill base is obtained through filtering after grinding, two Lauryl Alcohol ester, Octabenzone, organotin catalysts, BYK-028 defoamer, BYK-359 flow agent and BYK-410 anti-settling agent is added in thin mill base, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: thinner is added in agitator, then hexamethylene diisocyanate tripolymer and naphthalene diisocyanate-polytetrahydrofuran performed polymer, BYK-024 defoamer and BYK-358N flow agent is added to containing in the agitator of thinner, after stirring, obtain B component;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 3: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then spray Surface flame retardant prepared by above-mentioned the present embodiment at rubber surface, flame retardant coating is thick is 60 μm, as follows to the test result of flame retardant coating:
Tensile strength is 5.6MPa, and elongation at break is 174%, and wear(ing)value is (750g/500r) is 54mg, and sticking power is 0 grade, and vertical combustion grade is V-1 level, and oxygen index is 29, smoke density D
s, Maxbe 222, smoke toxicity CO
2be 8426, CO be 105, NO
2be 5, SO
2be 5, HCl be 3, HF be 1, HBr be 5, HCN be 2, smoke toxicity index is 0.037, and the unit of smoke density and aerosol gases composition is mgm
-3.
Embodiment 6:
A kind of Surface flame retardant of the present invention, this anti-flaming dope by component A and B component formulated according to the weight ratio of 2: 1, the solid content of component A is 65wt%, and the solid content of B component is 85wt%;
Component A is formed by the preparation of raw material of following weight part:
Above-mentioned 25 parts of fire-retardant fillers comprise 15.5 parts of ammonium polyphosphates, 4.5 parts of tetramethylolmethanes, 2.5 parts of titanium dioxides and 2.5 parts of carbon blacks,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form;
B component is formed by the preparation of raw material of following weight part:
Above-mentioned 99.6 parts of isocyanates solidifying agent comprise 24.9 parts of diphenylmethanediisocyanates and 74.7 parts of xylylene diisocyanate-polytetrahydrofuran performed polymers,
150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE that above-mentioned thinner is 1: 1: 1 by mass ratio form.
A preparation method for the Surface flame retardant of above-mentioned the present embodiment, comprises the following steps:
(1) preparation of component A:
(1.1) trolamine and halogen-free flameproof polyethers POP-290 are placed in baking oven at 120 DEG C dry 12 hours, then fire-retardant filler are placed in baking oven at 60 DEG C dry 24 hours;
(1.2) in an agitator, first thinner is added, then add BYK-163 dispersion agent and Yi Shiman CP-343-1 adhesion promoter and stir, add trolamine, halogen-free flameproof polyethers POP-290 again, dimethyl methyl phosphonate and fire-retardant filler (comprising ammonium polyphosphate, tetramethylolmethane, titanium dioxide and carbon black), mix and blend 30min, stirring velocity is 500r/min, obtains thick mill base;
(1.3) above-mentioned thick mill base is delivered to grinding machine for grinding until granularity is 40 μm, grinding rate is 1800r/min, milling time is 2h, thin mill base is obtained through filtering after grinding, 2 are added in thin mill base, 6-di-tert-butyl-4-methy phenol, Octabenzone, organic bismuth catalyst BiCAT8106, BYK-019 defoamer, BYK-356 flow agent and BYK-410 anti-settling agent, dispersed with stirring is rear discharging evenly, obtains component A;
(2) preparation of B component: thinner is added in agitator, then diphenylmethanediisocyanate and xylylene diisocyanate-polytetrahydrofuran performed polymer, BYK-019 defoamer and BYK-356 flow agent is added to containing in the agitator of thinner, after stirring, obtain B component;
(3) preparation of Surface flame retardant: by above-mentioned component A and B component according to 2: 1 weight ratio mix and stir, after stirring, obtain Surface flame retardant.
Construction technology: with trimerization isocyanuric acid process rubber surface, then spray Surface flame retardant prepared by above-mentioned the present embodiment at rubber surface, flame retardant coating is thick is 53 μm, as follows to the test result of flame retardant coating:
Tensile strength is 4.8MPa, and elongation at break is 231%, and wear(ing)value is (750g/500r) is 65mg, and sticking power is 0 grade, and vertical combustion grade is V-0 level, and oxygen index is 30, smoke density D
s, Maxbe 187, smoke toxicity CO
2be 6241, CO be 67, NO
2be 4, SO
2be 3, HCl be 2, HF be 0, HBr be 3, HCN be 2, smoke toxicity index is 0.035, and the unit of smoke density and aerosol gases composition is mgm
-3.
In the above preferred embodiment of the present invention, Surface flame retardant of the present invention is A/B two-component coating, and tensile strength is 4.8MPa ~ 6.5MPa, and elongation at break is 136% ~ 231%, and oxygen index is 29 ~ 33, has low-smoke low-toxicity (smoke density index D
s, Maxbe 140 ~ 222, smoke toxicity index 0.031 ~ 0.037) etc. characteristic, be the environment-friendly rubber anti-flaming dope of a kind of snappiness, low cigarette, low toxicity; Anti-flaming dope of the present invention ensures that when not reducing mechanical property it has highly effective flame-retardant effect, and good weatherability, long service life, its weathering resistance is at more than 1000h, saving maintenance cost, is the elastic flame coating that desirable rubber-metal subtracts vibration insolation means.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It is noted that for those skilled in the art, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a Surface flame retardant, is characterized in that, described Surface flame retardant by component A and B component formulated according to the weight ratio of 2 ~ 4: 1;
Described component A is formed by the preparation of raw material of thinner and following weight part:
Chainextender 35 ~ 55 parts,
Halogen-free flameproof polyethers 15 ~ 30 parts,
Fire-retardant filler 20 ~ 30 parts,
Liquid flame retardant 2.5 ~ 5.0 parts,
UV light absorber 0.5 ~ 2.5 part,
Radical polymerization inhibitor 0.5 ~ 2.5 part,
Catalyzer 0.5 ~ 2.0 part,
Dispersion agent 1.5 ~ 3.0 parts,
Adhesion promoter 1.0 ~ 3.0 parts, and
Other auxiliary agent 0.5 ~ 1.0 part,
The solid content of described component A is 60% ~ 80%, and in described component A, each parts by weight of raw materials summation except thinner is 100 parts;
Described B component is formed by the preparation of raw material of thinner and following weight part:
95.5 ~ 99.6 parts, isocyanates solidifying agent, and
Other auxiliary agent 0.4 ~ 4.5 part,
The solid content of described B component is 70% ~ 85%, and in described B component, each parts by weight of raw materials summation except thinner is 100 parts;
Described liquid flame retardant is phosphorus flame retardant;
Described isocyanates solidifying agent by mass ratio be 3 ~ 1: 1 ~ 3 isocyanate-monomer or isocyanic ester polymer and Isocyanate prepolymers body form; Described Isocyanate prepolymers body is that isocyanate-monomer and polyether glycol or polyester polyol are polymerized;
Described isocyanic ester polymer comprises hexamethylene diisocyanate tripolymer, described isocyanate-monomer comprises xylylene diisocyanate, isophorone diisocyanate, naphthalene diisocyanate or diphenylmethanediisocyanate, and described polyether glycol comprises polytetrahydrofuran and/or poly(propylene oxide); Described polyester polyol comprises polycarbonate and/or polycaprolactone.
2. Surface flame retardant according to claim 1, it is characterized in that, described chainextender is one or more in polyaspartic ester, quinhydrones-bis-(beta-hydroxyethyl) ether, trihydroxy methyl propane, trolamine, two (2-hydroxypropyl) aniline of N, N-, diethyl toluene diamine; Described halogen-free flameproof polyethers is nitrogenous halogen-free flameproof polyethers, and described fire-retardant filler is one or more in ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, magnesium hydroxide, aluminium hydroxide, titanium dioxide, carbon black; Described phosphorus flame retardant comprises dimethyl methyl phosphonate or diethyl ethylphosphate.
3. Surface flame retardant according to claim 1, is characterized in that, described UV light absorber is 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-5-chlorinated benzotriazole or Octabenzone; Described radical polymerization inhibitor is two Lauryl Alcohol ester or 2,6 di tert butyl 4 methyl phenol; Described catalyzer is organotin catalysts or organic bismuth catalyst.
4. Surface flame retardant according to claim 1, is characterized in that, described dispersion agent is one or more in BYK-161 dispersion agent, BYK-163 dispersion agent, BYK-2000 dispersion agent; Described adhesion promoter is Yi Shiman CP-343-1 and/or Yi Shiman CP-343-3.
5. Surface flame retardant according to claim 1, is characterized in that, other auxiliary agent described is one or more in defoamer, flow agent, anti-settling agent; Described defoamer is one or more in BYK-019 defoamer, BYK-024 defoamer, BYK-028 defoamer; Described flow agent is one or more in BYK-356 flow agent, BYK-358N flow agent, BYK-359 flow agent; Described anti-settling agent is one or more in BYK-410 anti-settling agent, BYK-430 anti-settling agent, BYK-405 anti-settling agent.
6. the Surface flame retardant according to any one of Claims 1 to 5, is characterized in that, described thinner is the mixture of 150# solvent oil, 1-Methoxy-2-propyl acetate and N-BUTYL ACETATE.
7. a preparation method for the Surface flame retardant according to any one of claim 1 ~ 6, comprises the following steps:
(1) preparation of component A: thinner, dispersion agent and adhesion promoter are mixed and stirs, then in gained mixture, chainextender, halogen-free flameproof polyethers, liquid flame retardant and fire-retardant filler is added, after mix and blend, obtain thick mill base, thick mill base is ground to granularity≤50 μm, obtains thin mill base, in thin mill base, add radical polymerization inhibitor, UV light absorber, catalyzer and other auxiliary agent, dispersed with stirring is even, obtains component A;
(2) preparation of B component: isocyanates solidifying agent and other auxiliary agent are added in thinner and stirs, obtain B component;
(3) preparation of Surface flame retardant: above-mentioned component A and B component mixed and stirs, obtaining Surface flame retardant.
8. preparation method according to claim 7, it is characterized in that, in step (1), the time of described mix and blend is 30min ~ 45min, the speed of mix and blend is 450r/min ~ 600r/min, the speed of described grinding is 1800r/min ~ 2000r/min, and the time of grinding is 2h ~ 2.5h.
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| CN104341580B (en) * | 2014-11-11 | 2018-05-22 | 李开成 | Strong mechanical performance sprays elastomer |
| CN104449263A (en) * | 2014-12-18 | 2015-03-25 | 江苏柏鹤涂料有限公司 | Reactive halogen-free flame retardant polyester paint |
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| CN107663405A (en) * | 2017-09-23 | 2018-02-06 | 镇江市太浪新材料科技有限公司 | A kind of anti-flaming dope |
| CN109265975B (en) * | 2018-08-07 | 2020-03-06 | 山东科技大学 | High-elasticity flame-retardant two-component wall material and preparation method thereof |
| CN110330880A (en) * | 2019-06-27 | 2019-10-15 | 青岛爱尔家佳新材料股份有限公司 | A kind of anticorrosive paint, preparation method and application method |
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