A kind of modified nano-titanium dioxide of Stability Analysis of Structures high-specific surface area and preparation method thereof
Technical field
The present invention relates to industrial filler field, particularly modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area and preparation method thereof.
Background technology
Owing to nano titanium oxide has good anti-ultraviolet property, good weatherability, chemical resistance, thermostability, photocatalytic, heat stability, the feature such as harmless, it is widely used in the industries such as pigment such as coating, rubber, plastics, papermaking, is also widely used as photocatalyst, photoelectric cell, ultraviolet light screener etc. simultaneously; Hydroxyl is contained on titanium dioxide nano-particle surface, and very easily the moisture in absorbed air, presents hydrophilic nmature, thus being not easily dispersed in organic facies, causes there is serious phenomenon of phase separation between TiO 2 particles and Organic substance. Therefore, when preparing titanium dioxide/polymer nanocomposites, first nano-titania particle being carried out surface modification, its purpose is exactly reduce the surface energy of nano titanium oxide, improves the surface nature of titanium dioxide, reduces the surface polarity of particle. So it is very necessary for developing a kind of method producing high-quality modified nano-titanium dioxide.
Summary of the invention
It is an object of the invention to provide modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area and preparation method thereof.
In order to realize the purpose of the present invention, the present invention is implemented by below scheme:
The modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area, is made up of the raw material of following weight portion: nano titanium oxide 85-90, CNT 2-4, mould wood powder 3-4, nano-aluminum hydroxide 5.5-6.6, pulverize polypropylene fibre 3-5, Silane coupling reagent KH-570 1-2, nylon 6 powder 6-7, carbon fiber powder 2.5-3.5, coumarone 4-5, pine tar 2-3, improved silica 2-3;
Described improved silica is made up of the raw material of following weight portion: silicon dioxide 55-60, nano medical stone powder 2-4, nano silicone micropowder 4-6, tri (propylene glycol) diacrylate 5-7,1-ethoxy-2-oil-based imidazoline 1-2, cobalt naphthenate 3-4, glycidyl acrylate 3-5, EDETATE SODIUM 2-4, water 50-60;Preparation method be firstly added nano silicon, nano medical stone powder, nano silicone micropowder, 1-ethoxy-2-oil-based imidazoline, water stir, form suspension, dry at 55-60 DEG C to water content 2-3%, add tri (propylene glycol) diacrylate, cobalt naphthenate, glycidyl acrylate immediately after, heating is to 130-150 DEG C, mix and blend 25-35 minute, it is cooled to room temperature, it is subsequently adding all the other residual componentss, stir 1-2 hour under 1200-1500 rev/min of condition, dry at 60-70 DEG C, grind and get final product.
The modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area of the present invention, is made up of step in detail below:
(1) nano titanium oxide, CNT, pulverizing polypropylene fibre, carbon fiber powder mix homogeneously are added in grinder, grind 15-20 minute with the speed of 1500-2000 rev/min, obtain mixed-powder stand-by;
(2) will mould wood powder, nano-aluminum hydroxide, nylon 6 powder, pine tar are put in mixing machine, it is warming up between 80-90 DEG C, insulated and stirred half an hour, continuously add Silane coupling reagent KH-570, coumarone, it is continuously heating to 130-160 DEG C, pour out after stirring 15-20 minute, after cooling, grind to obtain rubber powder;
(3) mixed-powder is mixed homogeneously with rubber powder, add suitable quantity of water, stir, sonic oscillation 1-2 hour at 80 DEG C, then proceed to grind 20-30 minute, form suspension stand-by;
(4) suspension is mixed with improved silica, stir 10-15 minute under 800-1000 rev/min, dry, put into and nano grinder is pulverized and get final product.
The invention has the beneficial effects as follows: the present invention moulds the formula such as wood powder, nylon 6 powder, coumarone by interpolation, add the stability of powder body, with the addition of again improved silica and add stability and the adsorptivity of product, carbon fiber powder is easily dispersed, increasing specific surface area, after mixing with coating, film is uniform and stable, ageing resistance is good, it is possible to as ink filler or rubber or plastic filler.
Specific embodiments
Below by instantiation, the present invention is described in detail.
The modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area, is made up of the raw material of following weight portion (kilogram): nano titanium oxide 85, CNT 2, mould wood powder 3, nano-aluminum hydroxide 5.5, pulverize polypropylene fibre 3, Silane coupling reagent KH-570 1, nylon 6 powder 6, carbon fiber powder 2.5, coumarone 4, pine tar 2, improved silica 2;
Described improved silica is made up of the raw material of following weight portion (kilogram): silicon dioxide 55, nano medical stone powder 2, nano silicone micropowder 4, tri (propylene glycol) diacrylate 5,1-ethoxy-2-oil-based imidazoline 1, cobalt naphthenate 3, glycidyl acrylate 3, EDETATE SODIUM 2, water 50; Preparation method be firstly added nano silicon, nano medical stone powder, nano silicone micropowder, 1-ethoxy-2-oil-based imidazoline, water stir, form suspension, dry at 55-60 DEG C to water content 2-3%, add tri (propylene glycol) diacrylate, cobalt naphthenate, glycidyl acrylate immediately after, heating is to 130-150 DEG C, mix and blend 25-35 minute, it is cooled to room temperature, it is subsequently adding all the other residual componentss, stir 1-2 hour under 1200-1500 rev/min of condition, dry at 60-70 DEG C, grind and get final product.
The modified nano-titanium dioxide of a kind of Stability Analysis of Structures high-specific surface area of the present invention, is made up of step in detail below:
(1) nano titanium oxide, CNT, pulverizing polypropylene fibre, carbon fiber powder mix homogeneously are added in grinder, grind 15-20 minute with the speed of 1500-2000 rev/min, obtain mixed-powder stand-by;
(2) will mould wood powder, nano-aluminum hydroxide, nylon 6 powder, pine tar are put in mixing machine, it is warming up between 80-90 DEG C, insulated and stirred half an hour, continuously add Silane coupling reagent KH-570, coumarone, it is continuously heating to 130-160 DEG C, pour out after stirring 15-20 minute, after cooling, grind to obtain rubber powder;
(3) mixed-powder is mixed homogeneously with rubber powder, add suitable quantity of water, stir, sonic oscillation 1-2 hour at 80 DEG C, then proceed to grind 20-30 minute, form suspension stand-by;
(4) suspension is mixed with improved silica, stir 10-15 minute under 800-1000 rev/min, dry, put into and nano grinder is pulverized and get final product.
The specific surface area of the modified nano-titanium dioxide that the present embodiment obtains substantially increases
Sample |
Former nano titanium oxide |
Modified nano-titanium dioxide |
Specific surface area/m2/g |
80-200 |
140-260 |