CN109504091A - A kind of low cigarette, flame-retardant silicone rubber rubber compound of high transparency and preparation method thereof - Google Patents
A kind of low cigarette, flame-retardant silicone rubber rubber compound of high transparency and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a kind of low cigarettes, the flame-retardant silicone rubber rubber compound of high transparency and preparation method thereof, belong to silastic material technical field.The flame-retardant silicone rubber rubber compound of the low cigarette, high transparency, is made of the raw material of following parts by weight: 100 parts of silicon rubber, 30-60 parts of gas-phase silica, 2-8 parts of hydroxy silicon oil, 0.5-2 parts of silane coupling agent, 0.25-0.8 parts of stearic acid, 3-8 parts of zinc borate, 0.1-0.4 parts of benzene a pair of horses going side by side triazole, 40-60 parts of nano-aluminum hydroxide gentle phase titanic oxide 0.8-1.6 parts.The invention also discloses the preparation methods of the flame-retardant silicone rubber rubber compound of above-mentioned low cigarette, high transparency.Silicon rubber gross rubber of the invention, raw material type is few, stay in grade, and physical mechanical property is excellent, electrical insulation strength is high.
Description
Technical field
The present invention relates to a kind of low cigarettes, the flame-retardant silicone rubber rubber compound of high transparency and preparation method thereof, belong to silicon rubber
Field of material technology.
Background technique
The preparation method of existing electrically insulating silicone rubber rubber compound, first is that adding using methyl vinyl silicon kautschuk as base rubber
Enter fume colloidal silica, hydroxy silicon oil, aluminium hydroxide, silicon powder to mediate through room temperature, the resistance that high-temperature heat treatment obtains after vacuumizing
Electrically insulating silicone rubber rubber compound is fired, second is that fume colloidal silica, hydroxyl silicon is added using methyl vinyl silicon kautschuk as base rubber
Oil, magnesium hydroxide are mediated through room temperature, the fire retardant insulating silicon rubber gross rubber that high-temperature heat treatment obtains after vacuumizing, and performance is as follows:
Shore hardness 65-75 degree, breaking strength 7.5-8.5Mpa, elongation 200-300%, cigarette light transmittance 65-75%.Above-mentioned preparation side
Method physical mechanical property is good, but smoke density is high, light transmittance is low.
In consideration of it, it is necessary to develop the flame-retardant silicone rubber rubber compound of the new low cigarette of one kind, high transparency, to make up existing skill
The deficiency of art.
Summary of the invention
An object of the present invention is to provide the flame-retardant silicone rubber rubber compound of a kind of low cigarette, high transparency.Silicon of the invention
Rubber mixed, raw material type is few, stay in grade, and physical mechanical property is excellent, electrical insulation strength is high.
The technical scheme to solve the above technical problems is that the flame-proof silicon rubber of a kind of low cigarette, high transparency is mixed
Refining glue is made of the raw material of following parts by weight: 100 parts of silicon rubber, 30-60 parts of gas-phase silica, 2-8 parts of hydroxy silicon oil, silicon
0.5-2 parts of alkane coupling agent, 0.25-0.8 parts of stearic acid, 3-8 parts of zinc borate, 0.1-0.4 parts of benzene a pair of horses going side by side triazole, nano-aluminum hydroxide
40-60 parts gentle phase titanic oxide 0.8-1.6 parts.
The principle of the present invention is:
Benzene a pair of horses going side by side triazole plays stabilization to flame-retardant silicone rubber rubber compound sulfidation.Make flame-retardant silicone rubber rubber compound point
Crosslinking degree is reinforced between son, hinders oxygen molecule to enter inside, promotes flame-retardant silicone rubber rubber compound physical property excellent to reach
Different, flame-retardant system is reinforced.
Gas phase titanium dioxide belongs to Nano titanium dioxide, and the hydroxyl group on surface makes it have hydrophily, and the production
Product do not have any pigment feature.The average grain diameter of particle is 21nm, density 4g/cm3, there is 50m2The special surface of/g, has
Excellent ultraviolet radiation absorption, photo-catalyst, decomposing organic pollutant, the weather-proof performances such as anti-aging.
The limited oxygen index that has of flame-retardant polymer not only can be improved in nano-aluminum hydroxide, increases flame retardant property, and help to change
The surface smoothness and mechanics, electric property of kind polymer product, enhance its tracking-resistant, resistance to electric arc and wear resistance, also use
The production quantity of etchant gas when eliminating smoke and reducing material combustion.
Zinc borate can form glassy state inorganic expansive coating, promote into charcoal, can hinder the evolution of volatile fuel, in height
The lower dehydration of temperature, has the effect of heat absorption, foam and rush dilute combustible.Flame retardant property is effectively improved, the production of smog when reducing burning
It is raw, and the chemistry of adjustable Plastic Rubber Products, mechanical, the performance of electricity etc..
The flame-retardant silicone rubber rubber compound of low cigarette, high transparency of the invention, is the silicon rubber gross rubber in the prior art
In formula, it is added to benzene a pair of horses going side by side triazole, gas phase titanium dioxide, nano-aluminum hydroxide, zinc borate.Nano-aluminum hydroxide is added to polymerization
The concentration of flammable polymeric matrix is significantly reduced in object, to reduce the heat release rate of flame-retardant system.Nano-aluminum hydroxide one
As the component containing the crystallization water or producible water, absorb a large amount of latent heat at 300~350 DEG C and be dehydrated, reduce material surface
Flame actual temperature and so that polymer is degraded to low molecular speed and slow down, reduce the generation of combustible.Aluminium hydroxide is de-
Activated alumina (Al is generated after water2O3), promote dehydrogenation reaction, generates protection layer of charcoal, while the deposition of catalytic carbon and corresponding charcoal
Oxidation reaction reduces flame-retardant system smoke creating amount.
Gas phase titanium dioxide is added in silicon rubber gross rubber, due to gas phase titanium dioxide can absorb ultraviolet light and
Transmitting, scatters ultraviolet, therefore anti-ultraviolet ability is strong, greatly improves silicon rubber gross rubber ageing-resistant effect.Boric acid
Zinc can form glassy state inorganic expansive coating, hinder the evolution of volatile fuel, and zinc borate, which decomposes, at high temperature generates B2O3,
It is attached to one layer of coating of formation on the surface of polymer, this coating can inhibit imflammable gas generation, can also prevent to aoxidize
Reaction and thermal decomposition effect, to play fire retardation.The addition of benzene a pair of horses going side by side triazole makes flame-retardant silicone rubber rubber compound sulfidation point
Be crosslinked between son it is more stable, so that it is high and stablize to reach physical property.Performance test: by low cigarette of the invention, high transparency
Flame-retardant silicone rubber rubber compound is molded, and vulcanization test piece is obtained, and shore hardness is 60-70 degree, density 1.32-1.4g/cm3,
Breaking strength is 8.0-9.0Mpa, elongation at break 200-300%, tearing strength 18.2-20KN/m, electrical insulation strength
Greater than 25KV/mm, 80% or more light transmittance.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the flame-retardant silicone rubber rubber compound of the low cigarette, high transparency, is made of the raw material of following parts by weight:
100 parts of silicon rubber, 40 parts of gas-phase silica, 5.2 parts of hydroxy silicon oil, 1 part of silane coupling agent, 0.3 part of stearic acid, boron
5 parts of sour zinc, 0.15 part of benzene a pair of horses going side by side triazole, 41 parts of aluminium hydroxide 1 part of gentle phase titanic oxides.
Using above-mentioned further beneficial effect is: above-mentioned for the optimal parameter of each raw material.Using made from this parameter
Smoke density is minimum, light transmittance highest and flame retardant property are best.
Further, the silicon rubber is methyl vinyl silicone rubber.
Further, the surface area of the gas-phase silica ratio is 200m2/g。
Further, the degree of polymerization of the hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content 9.1%.
Further, the silane coupling agent is vinyltrimethoxysilane, 3- aminopropyl triethoxysilane, ethylene
One of ethyl triethoxy silicane alkane.
Further, partial size≤30nm of the nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content
>=99.9%.
It is using above-mentioned further beneficial effect: using the nano-aluminum hydroxide of above-mentioned parameter, obtained low cigarette, height
The smoke density of the flame-retardant silicone rubber rubber compound of light transmittance, light transmittance and flame retardant property are best.
Further, partial size≤20nm of the gas phase titanium dioxide, specific surface area >=20m2/ g, nano-titanium dioxide contain
Amount >=99.9%.
It is using above-mentioned further beneficial effect: using the gas phase titanium dioxide of above-mentioned parameter, obtained low cigarette, height
The smoke density of the flame-retardant silicone rubber rubber compound of light transmittance, light transmittance and flame retardant property are best.
The second object of the present invention is to provide the preparation method of the flame-retardant silicone rubber rubber compound of above-mentioned low cigarette, high transparency.
Preparation method technique of the invention is unique, and process route is short, and production cost is low, stay in grade and is easy to manage, and market prospects are wide
It is wealthy, it is suitble to large-scale production.
The technical scheme to solve the above technical problems is that the flame-proof silicon rubber of a kind of low cigarette, high transparency is mixed
The preparation method of refining glue, includes the following steps:
(1) take the raw material of following parts by weight: 100 parts of silicon rubber, 30-60 parts of gas-phase silica, 2-8 parts of hydroxy silicon oil,
0.5-2 parts of silane coupling agent, 0.25-0.8 parts of stearic acid, 3-8 parts of zinc borate, 0.1-0.4 parts of benzene a pair of horses going side by side triazole, nano-aluminum hydroxide
40-60 parts gentle phase titanic oxide 0.8-1.6 parts；
(2) silicon rubber, silane coupling agent, hydroxy silicon oil and stearic acid are put into kneader, uncap and is kneaded 5min-10min,
Extremely it is uniformly mixed；
(3) gas-phase silica is divided into 4-5 parts, successively put into kneader, after feeding intake every time, is uniformly mixed, just again
It is fed intake next time, obtains mixing；
(4) powder on kneader autoclave body, kettle wall being cleaned in mixing, booting is warming up to 160 DEG C, be evacuated to-
0.065MPa, and 120min is kept in 160 DEG C of -170 DEG C of constant temperature；
(5) it uncaps the vacuum that disappears, first cools down at 120 DEG C hereinafter, successively putting into zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide again
Titanium and silane coupling agent, at 100 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, pour out sizing material simultaneously from kneader
It is cooling；
(6) sizing material after cooling is put on open mill, thin logical clot after plasticating, after standing cooling, is put into rubber strainer
Impurity screening is to get the flame-retardant silicone rubber rubber compound for arriving the low cigarette, high transparency.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the parts by weight of step (1) described raw material are as follows: 100 parts of silicon rubber, 40 parts of gas-phase silica, hydroxyl silicon
5.2 parts of oil, 1 part of silane coupling agent, 0.3 part of stearic acid, 5 parts of zinc borate, 0.15 part of benzene a pair of horses going side by side triazole, 41 parts of aluminium hydroxide and gas phase
1 part of titanium dioxide.
Further, the silicon rubber is methyl vinyl silicone rubber.
Further, the surface area of the gas-phase silica ratio is 200m2/g。
Further, the degree of polymerization of the hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content 9.1%.
Further, the silane coupling agent is vinyltrimethoxysilane, 3- aminopropyl triethoxysilane, ethylene
One of ethyl triethoxy silicane alkane.
Further, partial size≤30nm of the nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content >=
99.9%.
Further, partial size≤20nm of the gas phase titanium dioxide, specific surface area >=20m2/ g, nanometer titanium dioxide Ti content
>=99.9%.
The beneficial effects of the present invention are:
(1) flame-retardant silicone rubber rubber compound of low cigarette of the invention, high transparency, stay in grade, physical mechanical property is excellent,
Light transmittance reaches 84%, and flame retardant property vertical-horizontal combustion experiment reaches V-0.
(2) preparation method technique of the invention is unique, and process route is short, and production cost is low, stay in grade and is easy to manage,
Wide market is suitble to large-scale production.
Specific embodiment
Principles and features of the present invention are described below in conjunction with specific embodiment, example is served only for explaining this hair
It is bright, it is not intended to limit the scope of the present invention.
Embodiment 1
The flame-retardant silicone rubber rubber compound of the low cigarette of the present embodiment, high transparency, is made: methyl second of the raw material of following weight
Alkenyl silicon rubber 100kg, gas-phase silica 30kg, hydroxy silicon oil 8kg, vinyltrimethoxysilane 0.5kg, stearic acid
0.8kg, zinc borate 3kg, benzene a pair of horses going side by side triazole 0.4kg, the gentle phase titanic oxide 1.6kg of nano-aluminum hydroxide 40kg.Wherein, the gas
The specific surface area of phase white carbon black is 200m2/g；The degree of polymerization of the hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content are
9.1%；Partial size≤30nm of the nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content >=
99.9%；Partial size≤20nm of the gas phase titanium dioxide, specific surface area >=20m2/ g, nanometer titanium dioxide Ti content
>=99.9%.
The preparation method of the flame-retardant silicone rubber rubber compound of the low cigarette, high transparency, includes the following steps:
(1) take the raw material of following weight: methyl vinyl silicone rubber 100kg, gas-phase silica 30kg, hydroxy silicon oil 8kg,
Vinyltrimethoxysilane 0.5kg, stearic acid 0.8kg, zinc borate 3kg, benzene a pair of horses going side by side triazole 0.4kg, nano-aluminum hydroxide 40kg
Gentle phase titanic oxide 1.6kg；
(2) methyl vinyl silicone rubber, vinyltrimethoxysilane, hydroxy silicon oil and stearic acid are put into kneader,
It uncaps and is kneaded 5min, until being uniformly mixed；
(3) gas-phase silica is divided into 4kg, successively put into kneader, after feeding intake every time, is uniformly mixed, Cai Zaijin
Row feeds intake next time, obtains mixing；
(4) powder on kneader autoclave body, kettle wall being cleaned in mixing, booting is warming up to 160 DEG C, be evacuated to-
0.065MPa, and 120min is kept in 165 DEG C of constant temperature；
(5) it uncaps the vacuum that disappears, first cools down at 120 DEG C hereinafter, successively putting into zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide again
Titanium and 3- aminopropyl triethoxysilane, at 100 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, from kneader
Pour out sizing material and cooling；
(6) sizing material after cooling is put on open mill, thin logical clot after plasticating, after standing cooling, is put into rubber strainer
Impurity screening is to get the flame-retardant silicone rubber rubber compound for arriving the low cigarette, high transparency.
Embodiment 2
The flame-retardant silicone rubber rubber compound of the low cigarette of the present embodiment, high transparency, is made: methyl second of the raw material of following weight
Alkenyl silicon rubber 100kg, gas-phase silica 40kg, hydroxy silicon oil 5.2kg, 3- aminopropyl triethoxysilane 1kg, stearic acid
0.15kg, zinc borate 5kg, benzene a pair of horses going side by side triazole 0.15kg, the gentle phase titanic oxide 1kg of nano-aluminum hydroxide 41kg.Wherein, the gas
The specific surface area of phase white carbon black is 200m2/g；The degree of polymerization of the hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content are
9.1%；Partial size≤30nm of the nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content >=
99.9%；Partial size≤20nm of the gas phase titanium dioxide, specific surface area >=20m2/ g, nanometer titanium dioxide Ti content
>=99.9%.
The preparation method of the flame-retardant silicone rubber rubber compound of the low cigarette, high transparency, includes the following steps:
(1) raw material of following weight: methyl vinyl silicone rubber 100kg, gas-phase silica 40kg, hydroxy silicon oil is taken
5.2kg, 3- aminopropyl triethoxysilane 1kg, stearic acid 0.15kg, zinc borate 5kg, benzene a pair of horses going side by side triazole 0.15kg, nanometer hydrogen-oxygen
Change the gentle phase titanic oxide 1kg of aluminium 41kg；
(2) methyl vinyl silicone rubber, 3- aminopropyl triethoxysilane, hydroxy silicon oil and stearic acid are put into and is mediated
Machine uncaps and is kneaded 7min, until being uniformly mixed；
(3) gas-phase silica is divided into 4kg, successively put into kneader, after feeding intake every time, is uniformly mixed, Cai Zaijin
Row feeds intake next time, obtains mixing；
(4) powder on kneader autoclave body, kettle wall being cleaned in mixing, booting is warming up to 160 DEG C, be evacuated to-
0.065MPa, and 120min is kept in 165 DEG C of constant temperature；
(5) it uncaps the vacuum that disappears, first cools down at 120 DEG C hereinafter, successively putting into zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide again
Titanium and 3- aminopropyl triethoxysilane, at 100 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, from kneader
Pour out sizing material and cooling；
(6) sizing material after cooling is put on open mill, thin logical clot after plasticating, after standing cooling, is put into rubber strainer
Impurity screening is to get the flame-retardant silicone rubber rubber compound for arriving the low cigarette, high transparency.
Embodiment 3
The flame-retardant silicone rubber rubber compound of the low cigarette of the present embodiment, high transparency, is made: methyl second of the raw material of following weight
Alkenyl silicon rubber 100kg, gas-phase silica 60kg, hydroxy silicon oil 2kg, vinyltriethoxysilane 2kg, stearic acid
0.25kg, zinc borate 8kg, benzene a pair of horses going side by side triazole 0.1kg, the gentle phase titanic oxide 0.8kg of nano-aluminum hydroxide 60kg.Wherein, described
The specific surface area of gas-phase silica is 200m2/g；The degree of polymerization of the hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content are
9.1%；Partial size≤30nm of the nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content >=
99.9%；Partial size≤20nm of the gas phase titanium dioxide, specific surface area >=20m2/ g, nanometer titanium dioxide Ti content
>=99.9%.
The preparation method of the flame-retardant silicone rubber rubber compound of the low cigarette, high transparency, includes the following steps:
(1) take the raw material of following weight: methyl vinyl silicone rubber 100kg, gas-phase silica 60kg, hydroxy silicon oil 2kg,
Vinyltriethoxysilane 2kg, stearic acid 0.25kg, zinc borate 8kg, benzene a pair of horses going side by side triazole 0.1kg, nano-aluminum hydroxide 60kg and
Gas phase titanium dioxide 0.8kg；
(2) methyl vinyl silicone rubber, 3- aminopropyl triethoxysilane, hydroxy silicon oil and stearic acid are put into and is mediated
Machine uncaps and is kneaded 10min, until being uniformly mixed；
(3) gas-phase silica is divided into 5kg, successively put into kneader, after feeding intake every time, is uniformly mixed, Cai Zaijin
Row feeds intake next time, obtains mixing；
(4) powder on kneader autoclave body, kettle wall being cleaned in mixing, booting is warming up to 160 DEG C, be evacuated to-
0.065MPa, and 120min is kept in 170 DEG C of constant temperature；
(5) it uncaps the vacuum that disappears, first cools down at 120 DEG C hereinafter, successively putting into zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide again
Titanium and 3- aminopropyl triethoxysilane, at 100 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, from kneader
Pour out sizing material and cooling；
(6) sizing material after cooling is put on open mill, thin logical clot after plasticating, after standing cooling, is put into rubber strainer
Impurity screening is to get the flame-retardant silicone rubber rubber compound for arriving the low cigarette, high transparency.
Comparative example 1
This comparative example the difference from example 2 is that, in raw material without addition gas phase titanium dioxide, i.e., by following weight
Raw material is made: methyl vinyl silicone rubber 100kg, gas-phase silica 40kg, hydroxy silicon oil 5.2kg, 3- aminopropyl-triethoxy
Silane 1kg, stearic acid 0.15kg, zinc borate 5kg, benzene a pair of horses going side by side triazole 0.15kg and nano-aluminum hydroxide 41kg.
Preparation method is same as Example 2.
Comparative example 2
This comparative example the difference from example 2 is that, nano-aluminum hydroxide is replaced with magnesium hydroxide in raw material, remaining all phase
Together, i.e., be made of the raw material of following weight: methyl vinyl silicone rubber 100kg, gas-phase silica 40kg, hydroxy silicon oil 5.2kg,
3- aminopropyl triethoxysilane 1kg, stearic acid 0.15kg, zinc borate 5kg, benzene a pair of horses going side by side triazole 0.15kg, magnesium hydroxide 41kg and
Gas phase titanium dioxide 1kg.
Preparation method is same as Example 2.
Comparative example 3
This comparative example is identical as the composition of raw materials of embodiment 2, and difference is in preparation method, i.e., uncaps and disappear very in step 5
After sky, first cool down at 30 DEG C hereinafter, successively putting into zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide and vinyl trimethoxy again
Silane, at 90 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, pour out sizing material and cooling from kneader；Remaining step
It is rapid all identical.
By the resulting low cigarette of embodiment 1-3, the flame-retardant silicone rubber rubber compound of high transparency, the resulting silicon rubber of comparative example 1-3
Glue rubber compound, is molded respectively, obtains vulcanization test piece.Vulcanization test piece is detected, and test result is as shown in table 1.
1 test result of table
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Shore hardness (A) | 66 | 69 | 73 | 68 | 68 | 68 |
| Tensile strength (MPa) | 8.3 | 8.5 | 7.5 | 7.9 | 8.2 | 7.5 |
| Elongation (%) | 230 | 250 | 196 | 230 | 251 | 233 |
| Oxygen index (OI) (%) | 35 | 36 | 35 | 35 | 35 | 36 |
| Cigarette light transmittance (%) | 81.85 | 84.92 | 79.25 | 70.53 | 53.62 | 75.81 |
| Flame retardant rating | V-0 | V-0 | V-0 | V-1 | V-1 | V-0 |
By the data of embodiment 2 and comparative example 1 in table 1 it is found that embodiment 2 is matched in the silicon rubber gross rubber of the prior art
Fang Li is added to gas phase titanium dioxide.In the prior art, if adding new component in silicon rubber, physics can generally be caused
Mechanical performance decline.But although embodiment 2 is added to gas phase titanium dioxide, physical mechanical property and smoke density are not
There is decline, physical mechanical property is but significantly improved than comparative example 1, meanwhile, cigarette light transmittance is also obviously improved.
By the data of embodiment 2 and comparative example 2 in table 1 it is found that embodiment 2 is matched in the silicon rubber gross rubber of the prior art
Fang Li is added to nano-aluminum hydroxide.In the prior art, if adding new component in silicon rubber, physics can generally be caused
Mechanical performance decline.But although embodiment 2 is added to nano-aluminum hydroxide, physical mechanical property and smoke density are not
There is decline.Comparative example 2 replaces nano-aluminum hydroxide with magnesium hydroxide, and cigarette light transmittance is substantially reduced.Illustrate to use nanometer hydroxide
The cigarette light transmittance for the flame-retardant silicone rubber rubber compound that aluminium is prepared is more preferable.
By the data of embodiment 2 and comparative example 3 in table 1 it is found that the raw material of embodiment 2 and comparative example 3 and proportion are all the same,
But comparative example 3 puts into benzene a pair of horses going side by side triazole, nano-titanium dioxide and temperature difference when zinc borate, silane coupling agent, nano-aluminum hydroxide,
The tensile strength and cigarette light transmittance of embodiment 2 have apparent rising.
It can be seen that obtained flame-proof silicon rubber is mixed only using raw material of the invention, proportion and corresponding preparation method
Refining glue stay in grade, physical mechanical property is excellent, light transmittance is high.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. the flame-retardant silicone rubber rubber compound of a kind of low cigarette, high transparency, which is characterized in that by the raw material system of following parts by weight
At:
100 parts of silicon rubber, 30-60 parts of gas-phase silica, 2-8 parts of hydroxy silicon oil, 0.5-2 parts of silane coupling agent, stearic acid 0.25-
0.8 part, 3-8 parts of zinc borate, 0.1-0.4 parts of benzene a pair of horses going side by side triazole, 40-60 parts of nano-aluminum hydroxide gentle phase titanic oxide 0.8-1.6
Part.
2. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1, high transparency, which is characterized in that by such as
The raw material of lower parts by weight is made:
100 parts of silicon rubber, 40 parts of gas-phase silica, 5.2 parts of hydroxy silicon oil, 1 part of silane coupling agent, 0.28 part of stearic acid, boric acid
5 parts of zinc, 0.15 part of benzene a pair of horses going side by side triazole, 41 parts of nano-aluminum hydroxide 1 part of gentle phase titanic oxides.
3. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1 or 2, high transparency, which is characterized in that institute
Stating silicon rubber is methyl vinyl silicone rubber；The specific surface area of the gas-phase silica is 200m2/g。
4. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1 or 2, high transparency, which is characterized in that institute
The degree of polymerization for stating hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content 9.1%.
5. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1 or 2, high transparency, which is characterized in that institute
Silane coupling agent is stated as in vinyltrimethoxysilane, 3- aminopropyl triethoxysilane, vinyltriethoxysilane
It is a kind of.
6. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1 or 2, high transparency, which is characterized in that institute
State partial size≤30nm of nano-aluminum hydroxide, specific surface area >=150m2/ g, aluminium hydroxide content >=99.9%.
7. the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 1 or 2, high transparency, which is characterized in that institute
State partial size≤20nm of gas phase titanium dioxide, specific surface area >=20m2/ g, nanometer titanium dioxide Ti content >=99.9%.
8. a kind of preparation method of the flame-retardant silicone rubber rubber compound of low cigarette, high transparency, which comprises the steps of:
(1) raw material of following parts by weight: 100 parts of silicon rubber, 30-60 parts of gas-phase silica, 2-8 parts of hydroxy silicon oil, silane is taken
0.5-2 parts of coupling agent, 0.25-0.8 parts of stearic acid, 3-8 parts of zinc borate, 0.1-0.4 parts of benzene a pair of horses going side by side triazole, nano-aluminum hydroxide 40-
60 parts gentle phase titanic oxide 0.8-1.6 parts；
(2) silicon rubber, silane coupling agent, hydroxy silicon oil and stearic acid are put into kneader, uncaps and is kneaded 5min-10min, until mixed
It closes uniform；
(3) gas-phase silica is divided into 4-5 parts, successively put into kneader, after feeding intake every time, be uniformly mixed, just carry out again
It feeds intake next time, obtains mixing；
(4) powder on kneader autoclave body, kettle wall being cleaned in mixing, booting is warming up to 160 DEG C, be evacuated to-
0.065MPa, and 120min is kept in 160 DEG C of -170 DEG C of constant temperature；
(5) uncap the vacuum that disappears, first cool down at 120 DEG C hereinafter, successively put into again zinc borate, benzene a pair of horses going side by side triazole, gas phase titanium dioxide with
Silane coupling agent, at 100 DEG C hereinafter, point 3 investment nano-aluminum hydroxides, are kneaded uniformly, pour out sizing material and cooling from kneader；
(6) sizing material after cooling is put on open mill, thin logical clot after plasticating, after standing cooling, is put into rubber strainer filtering
Impurity is to get the flame-retardant silicone rubber rubber compound for arriving the low cigarette, high transparency.
9. the preparation method of the flame-retardant silicone rubber rubber compound of a kind of low cigarette according to claim 8, high transparency, feature
It is, the parts by weight of step (1) described raw material are as follows: 100 parts of silicon rubber, 40 parts of gas-phase silica, 5.2 parts of hydroxy silicon oil, silicon
1 part of alkane coupling agent, 0.15 part of stearic acid, 5 parts of zinc borate, 0.15 part of benzene a pair of horses going side by side triazole, 41 parts of nano-aluminum hydroxide and gas phase dioxy
Change 1 part of titanium.
10. a kind of preparation method of the flame-retardant silicone rubber rubber compound of low cigarette, high transparency according to claim 8 or claim 9,
It is characterized in that, the silicon rubber is methyl vinyl silicone rubber；The surface area of the gas-phase silica ratio is 200m2/g；It is described
The degree of polymerization of hydroxy silicon oil is 4, viscosity 31mm2/ S, hydroxy radical content 9.1%；The silane coupling agent is vinyl front three
One of oxysilane, 3- aminopropyl triethoxysilane, vinyltriethoxysilane；The grain of the nano-aluminum hydroxide
Diameter≤30nm, specific surface area >=150m2/ g, aluminium hydroxide content >=99.9%；Partial size≤20nm of the gas phase titanium dioxide,
Specific surface area >=20m2/ g, nanometer titanium dioxide Ti content >=99.9%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011183A (en) * | 2020-09-04 | 2020-12-01 | 江苏英亚高分子材料科技有限公司 | Self-heating silicone rubber composite material and application thereof in insulator |
| CN112063181A (en) * | 2020-09-18 | 2020-12-11 | 东莞海之澜硅胶科技有限公司 | Mixing silicone rubber and preparation method thereof |
| CN114316605A (en) * | 2021-12-31 | 2022-04-12 | 东莞市正安有机硅科技有限公司 | Transparent flame-retardant silicone rubber and preparation method thereof |
| CN116836550A (en) * | 2023-06-29 | 2023-10-03 | 浙江百朗士新材料有限公司 | High-voltage-resistant flame-retardant silica gel and preparation process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008074823A1 (en) * | 2006-12-19 | 2008-06-26 | Degussa Novara Technology S.P.A. | Sol gel process for producing protective films for polymeric substrates |
| CN101460560A (en) * | 2006-04-12 | 2009-06-17 | 蓝星有机硅法国公司 | Hot-vulcanizable polyorganosiloxane compositions useful particularly for manufacturing electrical cables or wires |
| CN102306513A (en) * | 2010-07-27 | 2012-01-04 | 南洋电缆集团有限公司 | Expansion type environment-friendly halogen-free high-flame retardant and fire-resistant cable and method thereof |
| CN105860536A (en) * | 2016-04-13 | 2016-08-17 | 山东兆圭高分子材料科技有限公司 | Flame-retardant and fire-resistant ceramic silicone rubber and preparation method thereof |
| CN106981341A (en) * | 2017-05-17 | 2017-07-25 | 中天射频电缆有限公司 | A kind of high fire-retardance high temperature resistant fireproof data cable and its preparation technology |
| CN107916002A (en) * | 2017-12-01 | 2018-04-17 | 迈高精细高新材料（深圳）有限公司 | A kind of silicon rubber and preparation method thereof |
-
2018
- 2018-10-24 CN CN201811243163.7A patent/CN109504091A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101460560A (en) * | 2006-04-12 | 2009-06-17 | 蓝星有机硅法国公司 | Hot-vulcanizable polyorganosiloxane compositions useful particularly for manufacturing electrical cables or wires |
| WO2008074823A1 (en) * | 2006-12-19 | 2008-06-26 | Degussa Novara Technology S.P.A. | Sol gel process for producing protective films for polymeric substrates |
| CN102306513A (en) * | 2010-07-27 | 2012-01-04 | 南洋电缆集团有限公司 | Expansion type environment-friendly halogen-free high-flame retardant and fire-resistant cable and method thereof |
| CN105860536A (en) * | 2016-04-13 | 2016-08-17 | 山东兆圭高分子材料科技有限公司 | Flame-retardant and fire-resistant ceramic silicone rubber and preparation method thereof |
| CN106981341A (en) * | 2017-05-17 | 2017-07-25 | 中天射频电缆有限公司 | A kind of high fire-retardance high temperature resistant fireproof data cable and its preparation technology |
| CN107916002A (en) * | 2017-12-01 | 2018-04-17 | 迈高精细高新材料（深圳）有限公司 | A kind of silicon rubber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 欧育湘等: "《阻燃剂》", 30 September 2009 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011183A (en) * | 2020-09-04 | 2020-12-01 | 江苏英亚高分子材料科技有限公司 | Self-heating silicone rubber composite material and application thereof in insulator |
| CN112063181A (en) * | 2020-09-18 | 2020-12-11 | 东莞海之澜硅胶科技有限公司 | Mixing silicone rubber and preparation method thereof |
| CN114316605A (en) * | 2021-12-31 | 2022-04-12 | 东莞市正安有机硅科技有限公司 | Transparent flame-retardant silicone rubber and preparation method thereof |
| CN116836550A (en) * | 2023-06-29 | 2023-10-03 | 浙江百朗士新材料有限公司 | High-voltage-resistant flame-retardant silica gel and preparation process thereof |
| CN116836550B (en) * | 2023-06-29 | 2024-02-20 | 浙江百朗士新材料有限公司 | High-voltage-resistant flame-retardant silica gel and preparation process thereof |
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