CN106432947B - The application of silicon powder and titanium white compound powder on plastic pipe - Google Patents
The application of silicon powder and titanium white compound powder on plastic pipe Download PDFInfo
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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
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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Abstract
The present invention relates to a kind of titanium white compound powders, are made of titanium dioxide and silicon powder, and titanium dioxide and the silicon powder of same particle size are no less than the 10% of gross mass；The oil absorption of titanium dioxide and the oil absorption of selected silicon powder, difference should be greater than being equal to 10 g/100g, less than or equal to 30g/100g；The bet specific surface areas ratio of selected titanium dioxide and selected silicon powder should be between 2.0 to 18.0.The titanium white compound powder can be applied in plastic pipe, and plastic pipe is made to have compared to plastic pipe better performance made of ordinary titanium powder silicon powder.
Description
Technical field
The present invention relates to a kind of titanium white compound powder applied to plastic pipe, and preparation method thereof.
Background technology
Plastic pipe is widely applied product in a kind of daily life, has incomparable excellent of many metal pipe materials
Point：It is light it is inexpensive, installation operation is simple, corrosion-resistant, good flame resistance, in many fields progressively alternative metals tubing.
In recent years, with the raising of living standards of the people and the development of society, consumer is for the demand of plastic pipe
Higher and higher, the requirement to its indices is also higher and higher, this just promotes the manufacturer of plastic pipe from raw material, production technology
Etc. each side consider, to promote the performance of plastic pipe.
Titanium dioxide, main component are titanium dioxide, are that current performance is optimal, and a kind of most widely used white industrial is former
Material, is widely used in the industries such as coating, papermaking, plastics-production.But since titanium white powder particles have photocatalytic activity in itself, make to contain
The plastic products of titanium dioxide generate high chemically active peroxide and free radical in light wave of the wavelength less than 387.5nm, lead
It causes plastics that oxidative degradation occurs and accelerates ageing of plastics, the major defect with weatherability difference.
88105532.8 trial of Chinese patent, to increase the mechanical strength of product, but is not examined by the use of silicon powder as filler
Considering silicon powder can have a negative impact to the whiteness of plastics.
In view of this, the present invention is proposed.
The content of the invention
It is therefore an object of the present invention in order to make up prior art defect, by diameter of particle, oil absorption and specific surface
Long-pending selection prepares a kind of titanium white compound powder that can be applied to plastic pipe, is mixed compared to common titanium dioxide pasc micro mist
Object, said composition can make finished product have more preferable weather resistance and mechanical performance, and can make plastic tube when applying in plastic pipe
The whiteness of material only has reduction more by a small margin, there is good prospects for commercial application.
In order to achieve the object of the present invention, technical scheme is as follows：
A kind of titanium white compound powder applied to plastic pipe is made of titanium dioxide and silicon powder, and titanium white powder content is 50-
90%, silicon powder content 10%-50%, titanium dioxide D50Less than or equal to 5 μm, silicon powder D50Less than or equal to 25 μm, wherein, have identical
The titanium dioxide of grain size is no less than the 10% of titanium white compound powder gross mass with silicon powder, and not more than 60%.
Preferably, the titanium dioxide with same particle size accounts for the 16% of titanium white compound powder gross mass with silicon powder.
Further, the oil absorption of selected titanium dioxide and the oil absorption of selected silicon powder, difference should be greater than 5 g/100g, small
In 20g/100g.
Preferably, the oil absorption of selected titanium dioxide and the oil absorption of selected silicon powder, difference 16g/100g.
Further, the bet specific surface areas ratio of selected titanium dioxide and selected silicon powder should be between 2.0 to 18.0.
Preferably, the bet specific surface areas ratio of titanium dioxide and selected silicon powder is 8.
Preferably, titanium dioxide and silicon powder mass ratio are 249:95.
Preferably, titanium dioxide is made of anatase thpe white powder and/or rutile type titanium white.
Further, further, the present invention also provides a kind of method for preparing the titanium white compound powder, this method is specific
For：Silicon powder is added in into acid solution, and stirs evenly slurrying at a constant temperature, the silicon powder after pickling is moved to and had been loaded with through washing, filtering
In the ball grinder of titanium dioxide and a small amount of surfactant, ball-milling medium is added in, and wet-milling is aged, and is filtered, it is dry, so as to obtain into
Product.
Preferably, acid solution is hydrochloric acid, concentration 5mol/L.
Preferably, surfactant is oleic acid, nonylphenol polyoxyethylene ether, lauric acid/dodecanoic acid, the one of fatty alcohol polyoxyethylene ether
Kind.
Preferably, the step of ball milling is：The silicon powder for weighing 1/3 mass puts into having been loaded with titanium dioxide and a small amount of surface and lives
Property agent planetary ball mill in, add in ball-milling medium, rotating speed 180r/min wet-millings ageing 2h be set, promote rotating speed to 300r/
Min, wet-milling ageing 2h.Remaining silicon powder is put into planetary ball mill, rotating speed 180r/min wet-millings ageing 2h is set,
Rotating speed is promoted to 300r/min, wet-milling ageing 2h.Rotational speed of ball-mill is 180r/min, time 4h.
Preferably, the steel ball size in ball mill is selected from 3-5mm.
Further, the present invention also provides a kind of plastic pipe, composition represents as follows by weight：Such as claim 1-
1-3 parts of any one titanium white compound powder described in 14,50-60 parts of polyvinyl chloride resin, 2-3 parts of stearic acid stable sodium agent, aluminium hydroxide
2-3 parts, 0.5-1 parts of calcium carbonate, 0.2-0.3 parts of paraffin, 0.1-0.3 parts of benzophenone light stabilizers.
Preferably, composition represents as follows by weight：Any one titanium dioxide combination as described in claim 1-14
1 part of object, 50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of hexichol
Ketone class light stabilizer.
Titanium dioxide is as fingers such as the important component in plastic pipe, such as its own property, grain size, oil absorption, specific surface areas
Mark, to the final product quality important of tubing.For example, the distribution of titanium dioxide grain size can influence the whiteness of plastic pipe finished product
Etc. indexs, oil absorption can influence the weather resistance close association of the glossiness of plastic pipe, specific surface area and plastic pipe, etc.
Deng.
The grain size and particle diameter distribution of titanium dioxide directly affect the whiteness of titanium dioxide, while also can be to dispersiveness and specific surface
Product has an impact.Grain size is smaller（In the range of visible ray half-wavelength）Although the whiteness of titanium dioxide can be increased, also can simultaneously
Influence the covering power and mechanical performance of titanium dioxide.
The oil absorption of titanium dioxide determines by the factors such as itself grain size and powder voidage, can be to the glossiness of plastic pipe
And cohesion and the flocculating degree of pigment particles.
The specific surface area of titanium dioxide is determined by factors such as the circularities of itself grain size and grain size, can influence plastic pipe
Weather resistance.Smaller specific surface area can reduce the photocatalytic activity of titanium dioxide in plastic pipe, so as to improve plastic pipe
Weather resistance, but simultaneously, smaller specific surface area can also influence the uniformity of plastic pipe appearance.
Therefore, in the present invention, largely test, be found surprisingly that by inventor, by titanium dioxide, silicon powder this
The selection of the indexs such as grain size, oil absorption, the specific surface area of two kinds of components can obtain a kind of titanium white compound powder, compared to general
Logical titanium dioxide pasc micro mist composition, said composition when applying in plastic pipe, can make finished product have more preferable weather resistance and
Mechanical performance, and the reduction of the whiteness of plastic pipe only more by a small margin can be made.
Inventor has found, ought be to titanium dioxide and silicon powder although titanium dioxide is different from the particle diameter distribution of silicon powder
Particle diameter distribution is carried out preferably, when the region that making the particle diameter distribution of two kinds of raw materials has a particular percentile coincides, due to silicon powder
The dispersiveness of composition can be improved, therefore such particle diameter distribution can be such that the particle of titanium dioxide is distributed in plastic pipe more
It is even, so as to improve the whiteness of plastic pipe finished product.And when the particle diameter distribution of titanium dioxide and silicon powder reaches unanimity, silicon powder will
Being uniformly distributed for titanium dioxide can be influenced, can also influence reflection of the light on titanium dioxide surface, so that whiteness reduces.
In addition, inventor also found in an experiment, titanium dioxide and silicon powder inventory are under conditions of certain proportion, when two
When the oil absorption difference of person is excessive, it is unfavorable for the reduction of titanium white compound powder oil absorption instead, so as to influence plastic pipe gloss
The indexs such as degree.The smaller particle oil absorption of known grain size is bigger, therefore inventor speculates, when the two oil absorption has big difference,
Little particle can be wrapped on bulky grain, and composition grain is caused to increase void among particles, so that composition in state of aggregation
The oil factor of powder improves.
Further, inventor also found in an experiment, and the specific surface area ratio of titanium dioxide and silicon powder is in a certain range
When interior, the weatherability of plastic pipe finished product can be increased.Titanium dioxide in known plastic tubing can absorb the ultraviolet light in space, this
When titanium dioxide absorb ultraviolet light, play and protect plastic pipe not by ultraviolet radiation, and simultaneously, titanium dioxide absorption ultraviolet light can be released
Free electron is released, so as to be destroyed to the performance of plastic pipe.Therefore when titanium dioxide and the specific surface area ratio of silicon powder
When excessive, the titanium dioxide area of exposure under ultraviolet light is excessive, and titanium dioxide discharges substantial amounts of free electron at this time, influences plastic tube
The performance of material.On the other hand, when the specific surface area ratio of titanium dioxide and silicon powder is too small, titanium dioxide exposes under ultraviolet light
Area is smaller, and at this moment plastic pipe will receive substantial amounts of ultraviolet radioactive, so as to influence its performance.
Beneficial effects of the present invention are：The titanium white compound powder is being answered compared to common titanium dioxide pasc micro mist composition
During for plastic pipe, finished product can be made to have more preferable weather resistance and mechanical performance, and can make the whiteness of plastic pipe only compared with
Reduction by a small margin.
Specific embodiment：
What deserves to be explained is following data are obtained by inventor by many experiments, as space is limited, only open up in the description
Show a part therein, and those of ordinary skill in the art can understand under this data and implement the present invention, the number not shown
According to being respectively provided with the trend identical with following experiment conclusions and can draw identical conclusion, repeat no more hereinafter.
Experimental example 1
The industrial titanium dioxide that different-grain diameter is taken to be distributed, with identical formula（1 part of titanium dioxide, 50 parts of polyvinyl chloride resin, hard
Sour 3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into
Finished plastic tubing, preparation method are ordinary skill in the art means, detect its key index.
Measure whiteness the step of be：First using whiteness instrument on PVC plastics battens, arbitrary three points is taken to carry out whiteness
It measures, then measures this whiteness at three, finally take this whiteness average value at three.
As shown in Table 1, when titanium dioxide median is more than 5 μm, the whiteness of plastic pipe finished product, tensile strength is shown
It writes and declines, can not be applied in production and living, therefore, the present invention selects titanium dioxide of the median less than 5 μm former as experiment
Material.The size distribution of powder is measured using Malvern Particle Size Analyzer in the present invention.
Influence of the 1 titanium dioxide median of table to plastic pipe tensile strength
| Titanium dioxide median D50（μm） | Whiteness（%） | Tensile strength（MPa） |
| 0.1 | 83.8 | 37.7 |
| 0.5 | 83.2 | 38.0 |
| 1 | 82.6 | 38.6 |
| 3 | 82.1 | 39.8 |
| 5 | 81.6 | 38.2 |
| 10 | 78.5 | 35.5 |
* GB1040-2006 National Standard of the People's Republic of China plastic tensile test method.
Experimental example 2
The industrial silicon powder that different-grain diameter is taken to be distributed, measures its particle diameter distribution, and detects its dispersiveness.
Detection method：Suitable quantity of water is added in silicon powder, silicon powder slurries are made, it is 7 to adjust pH, then will be scattered
Silicon powder slurries are poured into the graduated cylinder of 100ml, until liquid level just reaches at 100ml scales on slurries, supernatant is observed after precipitating 1h
The height of liquid.
As shown in Table 2, when silicon powder median is more than 25 μm, silicon powder dispersiveness is deteriorated at this time, applied to plastics
Pipe performance can be seriously affected in tubing, therefore the present invention selects silicon powder of the median less than 25 μm as experimental raw.
The influence dispersed to its of 2 silicon powder median of table
| Silicon powder median D50（μm） | Supernatant height（cm） |
| 0.1 | 18 |
| 1 | 22 |
| 5 | 24 |
| 10 | 26 |
| 20 | 26 |
| 25 | 27 |
| 30 | 39 |
Experimental example 3
The industrial silicon powder that industrial titanium dioxide of the median less than 20 μm, median is taken to be less than 30 μm, by not
Homogenous quantities than silicon powder and titanium dioxide mixing, obtain several titanium white compound powder, then with identical formula（Titanium dioxide group
1 part of object of conjunction, 50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part two
Benzophenone class light stabilizer）Finished product PVC plastic pipe is prepared into, preparation method is ordinary skill in the art means, detects it
Key index.
Measure whiteness the step of be：First using whiteness instrument on PVC plastics battens, arbitrary three points is taken to carry out whiteness
It measures, then measures this whiteness at three, finally take this whiteness average value at three.
As shown in table 3, when the mass ratio of titanium dioxide and silicon powder is more than 9:When 1, although whiteness is very high, tensile strength
Decline apparent；Meanwhile it is less than 5 in titanium dioxide and silicon powder mass ratio：When 5, whiteness value drastically declines again.Therefore in the present invention
In, the titanium dioxide and the mass ratio of silicon powder that select are 5：5-9：1.
The addition of 3 silicon powder of table is to plastic pipe whiteness, the influence of tensile strength
* GB1040-2006 National Standard of the People's Republic of China plastic tensile test method.
Embodiment 4
Take the industrial titanium dioxide of variety classes, silicon powder, be distributed by different-grain diameter, different quality than raw material mixing,
Several titanium white compound powder is obtained, then with identical formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid sodium is steady
Determine 3 parts of agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into finished product modeling
Material, preparation method are ordinary skill in the art means, detect its index.
Measure whiteness the step of be：First using whiteness instrument on PVC plastics battens, arbitrary three points is taken to carry out whiteness
It measures, then measures this whiteness at three, finally take this whiteness average value at three.
As shown in Table 4, when the percentage that the titanium dioxide with same particle size and silicon powder are accounted for gross mass is limited to 10%-
When in the range of 60%, the whiteness of plastic pipe, which will be substantially better than, is not defined or limits ratio to this index beyond this
The finished product of scope.Wherein, when and accounting for the 16% of gross mass with the titanium dioxide with same particle size and silicon powder, the whiteness of finished product is most
It is good.
There is table 4 titanium dioxide of same particle size and silicon powder to account for influence of the percentage of gross mass to plastic pipe whiteness
Experimental example 5
The industrial titanium dioxide of variety classes, silicon powder are taken, titanium dioxide and silicon powder oil absorption are detected first, then
Titanium dioxide, the silicon powder of different oil absorptions are chosen, several titanium white compound powder is obtained after mixing, then with identical formula（Titanium
1 part of white powder composition, 50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin,
0.1 part of benzophenone light stabilizer）Finished plastic tubing is prepared into, preparation method is ordinary skill in the art means.
Glossiness refers to the ability that the light projected on material surface is reflected away by its surface, and glossiness is got over
Height illustrates that the light that material surface reflects away is more.But the size of gloss value is not the ratio with reflected light and incident light
It represents, but is represented with relative value of the reflecting effect of standard material compared with test material.With vancometer to adding
The step of glossiness of the PVC plastic batten of different model rutile type titanium white has been added to be tested be：Gloss is connected first
The power supply of instrument is spent, preheats 15min, standard filter glass plate is placed in the opening of 60 ° of measurement head working faces, is then aligned with being open
With the center of both filter glass plates, key for standardization signal is gradually adjusted, until the reading and on-gauge plate of vancometer display
Standard value it is identical, then blue white pottery porcelain plate is placed in the opening of vancometer working face, the reading of display and standard value
Difference is less than or equal to 1 gloss value, and this completes the calibrations and correction to vancometer.In vancometer
PVC plastics battens are placed in the working face opening of 60 ° of measurement heads, the gloss value of PVC plastics battens is exactly institute on display
The reading of display.PVC plastic batten is taken into difference retest 5 times, then takes its average value.
As shown in table 5, when titanium dioxide and silicon powder oil absorption difference are in this section of 5-20, the light of plastic pipe finished product
Damp degree is better than the two oil absorption difference not in the finished product of this scope.In addition, when the two oil absorption difference is 16, plastic pipe
The glossiness of finished product is optimal.
Influence of the difference of 5 titanium dioxide oil absorption of table and silicon powder oil absorption to plastic pipe glossiness
Experimental example 6
The industrial titanium dioxide of variety classes, silicon powder are taken, titanium dioxide and silicon powder bet specific surface areas are examined first
It surveys, then chooses titanium dioxide, the silicon powder of different bet specific surface areas, several titanium white compound powder is obtained after mixing, then with phase
Same formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate,
0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）Finished plastic tubing is prepared into, preparation method is the conventional skill of this field
Art means detect its weather resistance.The bet specific surface areas numerical value of powder is measured with bet specific surface area measuring instruments, rounding.
The method of accelerated ageing is the natural item used PVC plastic material products long-term outdoor using ultraviolet light in the present invention
Part is simulated, and then evaluation is with the addition of the weather resistance of the PVC plastic material products of titanium white compound powder.It is with the addition of titanium dioxide combination
The PVC plastic products of object weather resistance test method be：Ultraviolet lamp weather resistance test case is opened before this, is 80mm by size
The PVC plastic batten of × 100mm × 2mm is placed on the specimen holder in chamber, shuts chamber, is then turned on ultraviolet lamp, warp
Cross a cycle ultraviolet light 12 it is small when aging irradiate, but each digestion period includes two processes, i.e.,：It is resistance in ultraviolet light first
The PVC plastic batten placed in chamber and be with the addition of titanium white compound powder is waited, the temperature adjusted in chamber is to 50 DEG C and continuous
The time of irradiation to 8 it is small when, open ultraviolet lamp, this degradation process be equivalent under field conditions (factors) light to PVC plastic system
The effect of product；The temperature in chamber is then transferred to 60 DEG C, then it is for 4 hours using condensation cycle process, this process is just
It is equivalent to influence of the dew to PVC plastic material products under natural conditions.Realize that condensation follows using the heat riser of chamber bottom
Water in ring process, that is, realization sink is so made PVC plastic batten run into uphill process by the process of thermal evaporation
Water vapour molecule is rapidly cooled, and small water droplet is then formed on the surface of PVC plastic batten.By placing PVC plastic sample
Item after a period of time, takes out batten respectively in ultraviolet accelerated ageing testing box, then carries out tensile strength and whiteness to batten
Test.
Plastic pipe whiteness and tensile strength values when only providing weather-proof test 0h and 960h in table 6,7.When titanium dioxide and silicon
At this section of 2-18, the weather resistance of plastic pipe finished product is better than the two bet and compares table the ratio of micro mist bet specific surface areas
The ratio of area is not in the finished product of this scope.In addition, the ratio of the two bet specific surface areas be 8 when, plastic pipe finished product it is resistance to
It is optimal to wait performance.
The influence of 6 titanium dioxide of table and the ratio of silicon powder bet specific surface areas to plastic pipe weather resistance（Tensile strength is surveyed
Examination）
* GB1040-2006 National Standard of the People's Republic of China plastic tensile test method.
The influence of 7 titanium dioxide of table and the ratio of silicon powder bet specific surface areas to plastic pipe weather resistance（Whiteness test）
Embodiment 1
It is 40m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 9g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 16% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 2
It is 10m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 15g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 10% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 3
It is 36m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 5g/100g, bet
Specific surface area 2m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 60% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 4
It is 10m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 9g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 60% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 5
It is 40m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 5g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 10% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 6
It is 36m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 15g/100g, bet
Specific surface area 2m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 16% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 7
It is 40m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 10g/100g, bet
Specific surface area 8m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 40% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 8
It is 45m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 7g/100g, bet
Specific surface area 3m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 15% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 9
It is 20m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 14g/100g, bet
Specific surface area 2m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium white compound powder, tool are obtained after mixing
There are the titanium dioxide of same particle size and silicon powder to account for the 50% of gross mass.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin,
3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）System
For into plastic pipe, preparation method is ordinary skill in the art means.
Embodiment 10
It is 40m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 9g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 1:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 16% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 11
It is 40m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 9g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 9:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 16% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 12
It is 10m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 15g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 1:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 10% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 13
It is 10m to take oil factor 20g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 15g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 9:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 10% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 14
It is 36m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 5g/100g, bet
Specific surface area 2m2The industrial silicon powder of/g, the two mass ratio are 1:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 60% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 15
It is 36m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 5g/100g, bet
Specific surface area 2m2The industrial silicon powder of/g, the two mass ratio are 9:1, titanium white compound powder is obtained after mixing, with identical
The titanium dioxide of grain size accounts for the 60% of gross mass with silicon powder.Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, stearic acid
3 parts of stable sodium agent, 3 parts of aluminium hydroxide, 1 part of calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）It is prepared into modeling
Expects pipe material, preparation method are ordinary skill in the art means.
Embodiment 16
It is 40m to take oil factor 25g/100g, bet specific surface area2The industrial titanium dioxide of/g, oil factor 9g/100g, bet
Specific surface area 5m2The industrial silicon powder of/g, the two mass ratio are 72.4:27.6, titanium dioxide and silicon with same particle size are micro-
Powder accounts for the 16% of gross mass.
Silicon powder is added in 5mol/L hydrochloric acid solutions, and stirs evenly slurrying at a constant temperature, the silicon powder after pickling through washing,
Filtering.The silicon powder for weighing 1/3 mass is put into the planetary ball mill for having been loaded with titanium dioxide and a small amount of surfactant, is added
Enter ball-milling medium, rotating speed 180r/min wet-millings ageing 2h is set, promote rotating speed to 300r/min, wet-milling ageing 2h.It will be remaining
Silicon powder is put into planetary ball mill, is set rotating speed 180r/min wet-millings ageing 2h, is promoted rotating speed to 300r/min, wet-milling
It is aged 2h.Rotational speed of ball-mill is 180r/min, time 4h.Steel ball size in ball mill is 3-5mm.Obtain titanium dioxide combination
Object.
Again with formula（1 part of titanium white compound powder, 50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1
Part calcium carbonate, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer）Plastic pipe is prepared into, preparation method is this field
Conventional technical means.
The results are shown in Table 8 by embodiment 1-16, when mass fraction, the oil suction of titanium dioxide and silicon powder to same particle size
After amount difference, bet specific surface area ratios are defined, thus paper product performance made of composition, is better than not to upper
State the paper product that several indexs are defined.
In addition, the mass fraction of the titanium dioxide to same particle size and silicon powder, oil absorption difference, bet specific surface areas simultaneously
This several indexs of ratio are defined, and the effect than These parameters are carried out with single restriction is more excellent.In embodiment 1-15,
The whiteness of paper product is better than the single restriction of the mass fraction to the titanium dioxide and silicon powder of same particle size（Single restriction
Whiteness concrete numerical value is shown in experimental example 5）.
Every quality index of 8 plastic pipe finished product of table
| Whiteness（%） | 60 ° of glossiness（5） | Tensile strength（MPa） | Aging 960h, whiteness（%） | Aging 960h, tensile strength（MPa） | |
| Embodiment 1 | 86.0 | 76.6 | 47.3 | 82.2 | 40.6 |
| Embodiment 2 | 85.9 | 76.1 | 46.4 | 79.0 | 36.9 |
| Embodiment 3 | 85.4 | 76.0 | 47.0 | 79.9 | 38.1 |
| Embodiment 4 | 85.6 | 76.7 | 46.5 | 79.2 | 36.9 |
| Embodiment 5 | 85.8 | 76.3 | 47.2 | 82.7 | 40.4 |
| Embodiment 6 | 86.1 | 76.1 | 46.8 | 79.2 | 38.0 |
| Embodiment 7 | 85.9 | 76.4 | 46.8 | 79.6 | 38.1 |
| Embodiment 8 | 85.5 | 76.0 | 47.1 | 79.8 | 37.7 |
| Embodiment 9 | 85.7 | 76.3 | 47.5 | 79.1 | 39.0 |
| Embodiment 10 | 83.6 | 75.5 | 47.8 | 78.7 | 39.9 |
| Embodiment 11 | 86.8 | 77.3 | 46.9 | 81.2 | 38.7 |
| Embodiment 12 | 83.3 | 75.1 | 47.4 | 75.3 | 38.8 |
| Embodiment 13 | 86.5 | 76.6 | 45.8 | 78.9 | 37.6 |
| Embodiment 14 | 83.4 | 74.7 | 47.0 | 77.4 | 39.4 |
| Embodiment 15 | 86.6 | 76.5 | 46.1 | 79.7 | 37.7 |
* finished product whiteness is detected according to the method in experimental example 1.60 ° of gloss of finished product are detected according to the method in experimental example 6
Degree.Finished product tensile strength is detected according to GB1040-2006 methods.
Finally it is to be appreciated that above example is merely to illustrate technical scheme and not limits, although reference
Technical scheme is described in detail in preferred embodiment, it will be appreciated by those skilled in the art that can be to this hair
Bright technical solution is modified or replaced equivalently, and without departing from the purpose and scope of the invention, should all be covered in this hair
Among bright protection domain.
Claims (11)
1. a kind of titanium white compound powder applied to plastic pipe is made of titanium dioxide and silicon powder, titanium white powder content is 50-
90%, silicon powder content 10%-50%, titanium dioxide D50Less than or equal to 5 μm, silicon powder D50Less than or equal to 25 μm, it is characterised in that：Tool
There are the titanium dioxide of same particle size and silicon powder to be no less than the 10% of titanium white compound powder gross mass, not more than 60%.
2. titanium white compound powder according to claim 1, it is characterised in that：Titanium dioxide and silicon powder with same particle size
Account for the 16% of titanium white compound powder gross mass.
3. titanium white compound powder according to claim 1 or 2, it is characterised in that：The oil absorption of selected titanium dioxide with it is selected
The oil absorption of silicon powder, difference should be greater than 5 g/100g, less than 20g/100g.
4. titanium white compound powder according to claim 3, it is characterised in that：The oil absorption of selected titanium dioxide and selected silicon are micro-
The oil absorption of powder, difference 16g/100g.
5. titanium white compound powder according to claim 1, it is characterised in that：The bet of selected titanium dioxide and selected silicon powder
Specific surface area ratio should be between 2.0 to 18.0.
6. according to the titanium white compound powder any one of claim 1,2,4,5, it is characterised in that：Titanium dioxide and selected silicon
The bet specific surface areas ratio of micro mist is 8.
7. the titanium white compound powder according to any one of claim 3, it is characterised in that：Titanium dioxide and selected silicon powder
Bet specific surface areas ratio is 8.
8. titanium white compound powder according to claim 1, it is characterised in that：Titanium dioxide is 249 with silicon powder mass ratio:
95。
9. titanium white compound powder according to claim 1, it is characterised in that：Titanium dioxide is by anatase thpe white powder and/or gold
Red stone-type titanium dioxide composition.
10. a kind of plastic pipe, it is characterised in that：It is formed represents as follows by weight：Titanium dioxide as described in claim 1
1-3 parts of composition, 50-60 parts of polyvinyl chloride resin, 2-3 parts of stearic acid stable sodium agent, 2-3 parts of aluminium hydroxide, 0.5-1 parts of calcium carbonate,
0.2-0.3 parts of paraffin, 0.1-0.3 parts of benzophenone light stabilizers.
11. plastic pipe according to claim 10, it is characterised in that：It is formed represents as follows by weight：Such as right
It is required that 1 part of the titanium white compound powder described in 1,50 parts of polyvinyl chloride resin, 3 parts of stearic acid stable sodium agent, 3 parts of aluminium hydroxide, 1 part of carbonic acid
Calcium, 0.2 part of paraffin, 0.1 part of benzophenone light stabilizer.
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