Summary of the invention
Technical problem to be solved by this invention is: the shortcoming at above prior art exists, a kind of liquid silicones and production method thereof are proposed, and do not contain poisonous oxious component, fire resistance is arranged, have and uphold and the elasticity of compression, can cut edge by modifying foam.
The technical scheme that the present invention solves above technical problem is:
Liquid silicones is made up of A component and B component, and A component and B component were mixed by 1: 1;
The A component is made up of base-material M and hydrogen containing siloxane, and each weight percentages of components is in the A component:
Base-material M 75~97%
Hydrogen containing siloxane 3~25%;
Base-material M is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material M is:
End-vinyl polysiloxane 40~95%
End alkyl polysiloxane 5~60%;
The B component is made up of base-material N and platinum metal catalysts, and each weight percentages of components is in the B component:
Base-material N 99.8~99.99%
Platinum metal catalysts 0.01~0.2%;
Platinum metal catalysts is the catalyzer of rhodium, ruthenium, palladium, osmium, iridium or platinum;
Base-material N is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material N is:
End-vinyl polysiloxane 40~95%
End alkyl polysiloxane 5~60%.
The production method of liquid silicones, carry out according to the following steps:
(1) with base-material M through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2~3 hours down, ground through three-roll grinder again;
(2) step (1) gained base-material M and hydrogen containing siloxane are made into component A by proportioning;
(3) with base-material N through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2~3 hours down, ground through three-roll grinder again;
(4) base-material N and the platinum metal catalysts with step (3) gained is made into B component by proportioning;
(5) component A and B component were mixed or mixed through static mixer with special-purpose adhesive supplier at the scene by 1: 1, form low density elastic fireproof foams after the room temperature vulcanization.
Hydroxy-terminated polysiloxane, end-vinyl polysiloxane or the viscosity of end alkyl polysiloxane under 25 ℃ are 10-1,000, and 000mPas.
Liquid silicones of the present invention also contains reinforced filling among base-material M and the base-material N, and the reinforced filling add-on is 0~20% of a base-material weight, and reinforced filling is at least a in thermal silica, precipitated silica, nano-calcium carbonate, silica powder or the silicone resin.
Also contain the fire-retardant fireproof component among the base-material M, fire-retardant fireproof component add-on is 0~80% of a base-material M weight, and the fire-retardant fireproof component is at least a in aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain the fire-retardant fireproof component among the base-material N, fire-retardant fireproof component add-on is 0~80% of a base-material N weight, and the fire-retardant fireproof component is at least a in ammonium polyphosphate, tetramethylolmethane, aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain black pigment among the base-material M, the black pigment add-on is 0~10% of a base-material M weight, and black pigment is at least a in carbon black or the iron oxide black.
Also contain yellow ultramarine among the base-material N, the yellow ultramarine add-on is 0~10% of a base-material N weight, and yellow ultramarine is at least a in oxidation chrome yellow or the iron oxide yellow.
Platinum metal catalysts comprises the catalyzer of rhodium, ruthenium, palladium, osmium, iridium or platinum.The rhodium catalyst that is suitable for is disclosed in the United States Patent (USP) 4,026,835 of Lee etc., and the wherein relevant content that is used for the rhodium catalyst of silicone foams no longer is repeated in this description here.Catalyzer based on platinum is particularly preferred, and it can take effectively to promote any known form of Si-H group and silicon key alkenyl reaction even, also can promote the reaction of the hydroxyl OH group in Si-H group and the organic alcohol effectively, for hydrogen is provided in the foaming process.The suitable form of platinum includes but not limited to Platinic chloride, platinic compound and platinic compound and unsaturated organic compound or has the title complex that the silicon key connects the siloxanes of group that the silicon key connects group and contains the ethylenic unsaturated group.The example of the platinum catalyst that other is suitable comprises the title complex of the inferior platinum of halogenation or Platinic chloride and divinyl disiloxane, and reacts the title complex that forms by Platinic chloride, divinyl tetramethyl disiloxane and tetramethyl disiloxane.Suitable platinum catalyst is disclosed in the United States Patent (USP) 3,419,593 of Willing, wherein about the content of this Preparation of Catalyst, no longer is repeated in this description here.
The structural formula of hydrogen containing siloxane is:
In the formula 1, R is methyl, ethyl or phenyl, containing hydrogen group H and can partly be replaced by alkyl in the formula 1;
The structural formula of end-vinyl polysiloxane is:
In the formula 2, R is methyl, ethyl or phenyl, and Vi is a vinyl;
The structural formula of end alkyl polysiloxane is:
In the formula 3, R is methyl, ethyl or phenyl.
The present invention does not contain poisonous oxious component, has fire resistance, and anti-ray penetrates, and has to uphold and the elasticity of compression, can compensate mechanical pipeline vibrations and building settlement and the displacement that causes, is convenient to pipeline or cable maintenance, and side cut is the modification of foam surface afterwards.Low density silicone foam fireproof latex foam of the present invention has good fire resistance and good physical behavior, the slit through walls fireproof blocking that is used for all kinds of pipelines, especially the slit through walls fireproof and radiation-proof shutoff of nuclear power factory building, the inner pipeline through walls of ships, cable, ventilator trunk, the modification of the back foam surface of cutting edge.Low density silicone foam fireproof latex foam of the present invention can begin foaming in 3 minutes, was solidified into foam elastomer in 10 minutes, and foams proportion is 2.35g/cm
3, testing vertical flammability is the V-0 level, rate of closed hole is 80%, through flame spraying burning in 5 minutes, puts out certainly at once from fire, and stays one deck scab at the foams outside surface.
Embodiment
Embodiment one
Liquid silicones is made up of A component and B component, and A component and B component were mixed by 1: 1;
The A component is made up of base-material M and hydrogen containing siloxane, and each weight percentages of components is in the A component:
Base-material M 75%
Hydrogen containing siloxane 25%;
Base-material M is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material M is:
End-vinyl polysiloxane 40%
End alkyl polysiloxane 60%;
The B component is made up of base-material N and platinum metal catalysts, and each weight percentages of components is in the B component:
Base-material N 99.8%
Platinum metal catalysts 0.2%;
Platinum metal catalysts is the catalyzer of rhodium, ruthenium, palladium, osmium, iridium or platinum;
Base-material N is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material N is:
End-vinyl polysiloxane 40%
End alkyl polysiloxane 60%.
Platinum metal catalysts is a rhodium catalyst, is disclosed in the United States Patent (USP) 4,026,835 of Lee etc., and the wherein relevant content that is used for the rhodium catalyst of silicone foams no longer is repeated in this description here.
The production method of liquid silicones, carry out according to the following steps:
(1) with base-material M through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2 hours down, ground through three-roll grinder again;
(2) step (1) gained base-material M and hydrogen containing siloxane are made into component A by proportioning;
(3) with base-material N through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2 hours down, ground through three-roll grinder again;
(4) base-material N and the platinum metal catalysts with step (3) gained is made into B component by proportioning;
(5) component A and B component were mixed or mixed through static mixer with special-purpose adhesive supplier at the scene by 1: 1, form low density elastic fireproof foams after the room temperature vulcanization.
Hydroxy-terminated polysiloxane, end-vinyl polysiloxane or the viscosity of end alkyl polysiloxane under 25 ℃ are 10-1,000, and 000mPas.
Embodiment two
Liquid silicones is made up of A component and B component, and A component and B component were mixed by 1: 1;
The A component is made up of base-material M and hydrogen containing siloxane, and each weight percentages of components is in the A component:
Base-material M 97%
Hydrogen containing siloxane 3%;
Base-material M is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material M is:
End-vinyl polysiloxane 95%
End alkyl polysiloxane 5%;
The B component is made up of base-material N and platinum metal catalysts, and each weight percentages of components is in the B component:
Base-material N 99.99%
Platinum metal catalysts 0.01%;
Platinum metal catalysts is the catalyzer of rhodium, ruthenium, palladium, osmium, iridium or platinum;
Base-material N is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material N is:
End-vinyl polysiloxane 95%
End alkyl polysiloxane 5%.
Platinum metal catalysts is the catalyzer based on platinum, and suitable platinum catalyst is disclosed in the United States Patent (USP) 3,419,593 of Willing, wherein about the content of this Preparation of Catalyst, no longer is repeated in this description here.
The liquid silicones of present embodiment also contains reinforced filling among base-material M and the base-material N, and the reinforced filling add-on is 20% of a base-material weight, and reinforced filling is at least a in thermal silica, precipitated silica, nano-calcium carbonate, silica powder or the silicone resin.
Also contain the fire-retardant fireproof component among the base-material M, fire-retardant fireproof component add-on is 80% of a base-material M weight, and the fire-retardant fireproof component is at least a in aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain the fire-retardant fireproof component among the base-material N, fire-retardant fireproof component add-on is 80% of a base-material N weight, and the fire-retardant fireproof component is at least a in ammonium polyphosphate, tetramethylolmethane, aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain black pigment among the base-material M, the black pigment add-on is 10% of a base-material M weight, and black pigment is at least a in carbon black or the iron oxide black.
Also contain yellow ultramarine among the base-material N, the yellow ultramarine add-on is 10% of a base-material N weight, and yellow ultramarine is at least a in oxidation chrome yellow or the iron oxide yellow.
The production method of liquid silicones, carry out according to the following steps:
(1) with base-material M through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 3 hours down, ground through three-roll grinder again;
(2) step (1) gained base-material M and hydrogen containing siloxane are made into component A by proportioning;
(3) with base-material N through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 3 hours down, ground through three-roll grinder again;
(4) base-material N and the platinum metal catalysts with step (3) gained is made into B component by proportioning;
(5) component A and B component were mixed or mixed through static mixer with special-purpose adhesive supplier at the scene by 1: 1, form low density elastic fireproof foams after the room temperature vulcanization.
Hydroxy-terminated polysiloxane, end-vinyl polysiloxane or the viscosity of end alkyl polysiloxane under 25 ℃ are 10-1,000, and 000mPas.
Embodiment three
Liquid silicones is made up of A component and B component, and A component and B component were mixed by 1: 1;
The A component is made up of base-material M and hydrogen containing siloxane, and each weight percentages of components is in the A component:
Base-material M 88%
Hydrogen containing siloxane 12%;
Base-material M is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material M is:
End-vinyl polysiloxane 55%
End alkyl polysiloxane 45%;
The B component is made up of base-material N and platinum metal catalysts, and each weight percentages of components is in the B component:
Base-material N 99.9%
Platinum metal catalysts 0.1%;
Platinum metal catalysts is the catalyzer of rhodium, ruthenium, palladium, osmium, iridium or platinum;
Base-material N is the combination of end-vinyl polysiloxane and end alkyl polysiloxane, and the weight percent of each ingredients constitute base-material N is:
End-vinyl polysiloxane 55%
End alkyl polysiloxane 45%.
Platinum metal catalysts is the catalyzer based on platinum, and suitable platinum catalyst is disclosed in the United States Patent (USP) 3,419,593 of Willing, wherein about the content of this Preparation of Catalyst, no longer is repeated in this description here.
The liquid silicones of present embodiment also contains reinforced filling among base-material M and the base-material N, and the reinforced filling add-on is 10% of a base-material weight, and reinforced filling is at least a in thermal silica, precipitated silica, nano-calcium carbonate, silica powder or the silicone resin.
Also contain the fire-retardant fireproof component among the base-material M, fire-retardant fireproof component add-on is 50% of a base-material M weight, and the fire-retardant fireproof component is at least a in aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain the fire-retardant fireproof component among the base-material N, fire-retardant fireproof component add-on is 30% of a base-material N weight, and the fire-retardant fireproof component is at least a in ammonium polyphosphate, tetramethylolmethane, aluminium hydroxide, magnesium hydroxide, zinc borate or the diatomite.
Also contain black pigment among the base-material M, the black pigment add-on is 5% of a base-material M weight, and black pigment is at least a in carbon black or the iron oxide black.
Also contain yellow ultramarine among the base-material N, the yellow ultramarine add-on is 6% of a base-material N weight, and yellow ultramarine is at least a in oxidation chrome yellow or the iron oxide yellow.
The production method of liquid silicones, carry out according to the following steps:
(1) with base-material M through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2.5 hours down, ground through three-roll grinder again;
(2) step (1) gained base-material M and hydrogen containing siloxane are made into component A by proportioning;
(3) with base-material N through vacuum kneader at 180 ℃, vacuum tightness-0.095MPa mediated 2.5 hours down, ground through three-roll grinder again;
(4) base-material N and the platinum metal catalysts with step (3) gained is made into B component by proportioning;
(5) component A and B component were mixed or mixed through static mixer with special-purpose adhesive supplier at the scene by 1: 1, form low density elastic fireproof foams after the room temperature vulcanization.
Hydroxy-terminated polysiloxane, end-vinyl polysiloxane or the viscosity of end alkyl polysiloxane under 25 ℃ are 10-1,000, and 000mPas.
Embodiment four
Base-material M prescription:
Vinyl silicone oil 8000cp 300g
Methyl-silicone oil 350cp 50g
Thermal silica 10g
Aluminium hydroxide 200g
Carbon black 1g
The preparation of base-material M:
In the vacuum kneader with 1 liter of the adding of the liquid material in the above-mentioned prescription, it is 120 ℃ that temperature is set, and in stirring, gradation slowly adds other powder material, after adding, cover the kneading cover, it is 180 ℃ that temperature is set, and vacuumizes, vacuum tightness reaches-0.095MPa, arrive 180 ℃ from temperature, stirs and stop to heat and stirring discharging after 3 hours; Above-mentioned material is ground three times through three-roll grinder get base-material M.
Base-material N prescription:
Vinyl silicone oil 5000cp 300g
Methyl-silicone oil 350cp 50g
Thermal silica 10g
Aluminium hydroxide 150g
Ammonium polyphosphate (APP) 15g
Tetramethylolmethane 10g
Iron oxide yellow 3g
The preparation of base-material N:
In the vacuum kneader with 1 liter of the adding of the liquid material in the above-mentioned prescription, it is 120 ℃ that temperature is set, and in stirring, gradation slowly adds other powder material, after adding, cover the kneading cover, it is 180 ℃ that temperature is set, and vacuumizes, vacuum tightness reaches-0.095MPa, arrive 180 ℃ from temperature, stirs and stop to heat and stirring discharging after 3 hours; Above-mentioned material is ground three times through three-roll grinder get base-material N.
A component prescription:
Base-material M 100g
Containing hydrogen silicone oil 10g
The preparation of A component:
By filling a prescription with above-mentioned base-material M and the uniform A component of containing hydrogen silicone oil thorough mixing.
B component prescription:
Base-material N 100g
Platinum complex 0.1g
The preparation of B component:
By filling a prescription with above-mentioned base-material M and the uniform B component of containing hydrogen silicone oil thorough mixing.
The A component is a black accompanied with sticky fluxion, viscosity 30000cp, proportion: 1.3; The B component is yellow accompanied with sticky fluxion, viscosity 35000cp, proportion: 1.3.
A, B were mixed by 1: 1, be solidified into foam elastomer in 60 minutes.Proportion is 1.3g/cm
3, testing vertical flammability is the V-0 level.Through flame spraying burning in 5 minutes, put out certainly at once from fire, and stay one deck scab at the foams outside surface.
After A, B component mixed, be poured on respectively on low density fire prevention latex foam tangent plane, high-density fire prevention latex foam tangent plane, reinforced cement-mortar board, PVC plate, timber, the iron sheet, treat curing molding after, all bonding is good.
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.