CN102393444A - Method for detecting lipophilicity of titanium white - Google Patents
Method for detecting lipophilicity of titanium white Download PDFInfo
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- CN102393444A CN102393444A CN2011102959669A CN201110295966A CN102393444A CN 102393444 A CN102393444 A CN 102393444A CN 2011102959669 A CN2011102959669 A CN 2011102959669A CN 201110295966 A CN201110295966 A CN 201110295966A CN 102393444 A CN102393444 A CN 102393444A
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- titanium white
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- lipophilicity
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Abstract
The invention provides a method for detecting the lipophilicity of titanium white. The method comprises the following steps of: putting the titanium white into a capillary; immersing the capillary filled with the titanium white in a non-polar solvent; and observing the liquid level height of the non-polar solvent in the capillary, wherein when the rise of the liquid level height is quick, the lipophilicity of the titanium white is low, and when the rise of the liquid level height is slow, the lipophilicity of the titanium white is high. By the method for detecting the lipophilicity of the titanium white, the lipophilicity of the titanium white can be easily, quickly and accurately detected.
Description
Technical field
The present invention relates to the oil loving method of a kind of detection titanium white powder, more particularly, the present invention relates to a kind ofly the adsorbance of oil detected the oil loving method of titanium white powder through measuring titanium white powder.
Background technology
Titanium white powder is widely used in fields such as coating, plastics, printing ink as a kind of Chinese white.Not surface treated titanium white powder surface has many hydroxyls, and polarity is bigger, reunites easily dispersed bad in application process.When particularly titanium white powder is used in solvent based coating, the plastics, generally adopt coupling agent that titanium white powder is carried out surface treatment, improve its oleophylic performance, the compatibility of enhancement and matrix is to obtain dispersive property preferably.Therefore, the oil loving characterizing method of titanium white powder is just seemed very important.
At present, the titanium white powder industry adopts oil absorption to represent titanium white powder oleophylic performance, and the method that detects the titanium white powder oil absorption is following: take by weighing the 5g titanium pigment specimen and be placed on the glass plate; Drip refining linseed oil on sample; Stir with toolsetting, till obtaining uniform dough paste (this process must at 15min with interior completion), write down the weight of used linseed oil; And be converted into the 100g titanium white powder consumes linseed oil when reaching complete wetting minimum flow, promptly be the oil absorption of titanium white powder.The drawback of the method is to adopt human eye to judge terminal point, and error is bigger.Therefore, this method can only be as estimating the oil loving reference of titanium white powder.
Summary of the invention
In order to overcome the problem that exists in the prior art, the invention provides and a kind ofly can detect the oil loving method of titanium white powder easy, fast and exactly.The oil loving method of detection titanium white powder of the present invention is utilized the capillary principle, and the non-polar solvent of wettable titanium white powder is got in the titanium white powder post, the adsorbance of solvent is judged the lipophilicity of titanium white powder through detecting titanium white powder.
May further comprise the steps according to the oil loving method of detection titanium white powder of the present invention: titanium white powder is placed kapillary; The kapillary that titanium white powder is housed is immersed in the non-polar solvent; Observe the liquid level of non-polar solvent in the kapillary, wherein, said liquid level rises fast more, and the lipophilicity of titanium white powder is poor more, and said liquid level rises slow more, and the lipophilicity of titanium white powder is good more.
Alternatively, said non-polar solvent is 1, at least a in 2-ethylene dichloride, cyclohexane, tetrahydrofuran, hexane, ethyl acetate, the sherwood oil.
Alternatively, with liquid level square be ordinate, be the horizontal ordinate mapping with time, slope is big more, the lipophilicity of titanium white powder is poor more, slope is more little, the lipophilicity of titanium white powder is good more.
Preferably, in said bottom capillaceous silk screen is installed, so that titanium white powder is remained in the kapillary.
Preferably, said silk screen is a stainless steel cloth, and said silk screen has greater than 460 purpose sieve apertures.
Preferably, in detecting the oil loving process of titanium white powder, keep the temperature-resistant of detection system.
Description of drawings
Through describing the present invention with reference to accompanying drawing, above-mentioned advantage of the present invention and further feature will become apparent, in the accompanying drawings:
Fig. 1 is according to the oil loving schematic representation of apparatus of detection titanium white powder of the present invention;
Fig. 2 is liquid level and the time relation figure that utilizes in the kapillary that obtains according to the oil loving device of detection titanium white powder of the present invention.
Embodiment
Hereinafter, will describe in detail according to the oil loving method of detection titanium white powder of the present invention with reference to accompanying drawing.
Fig. 1 is according to the oil loving schematic representation of apparatus of detection titanium white powder of the present invention.Can know with reference to Fig. 1, comprise according to the oil loving device of detection titanium white powder of the present invention: kapillary 10, reservoir 20, non-polar solvent 30, silk screen 40.Specifically, non-polar solvent 30 is placed in the reservoir 20.Kapillary 10 is suspended on reservoir 20 tops, and the lower end of kapillary 10 is immersed in the non-polar solvent 30 in the reservoir 20.Silk screen 40 is arranged on the lower end of kapillary 10, remains on kapillary 10 with the titanium white powder 50 that will be arranged in kapillary 10.
According to the present invention, the adsorbance of the non-polar solvent in the reservoir 20 30 is confirmed the lipophilicity of titanium white powder through measuring titanium white powder.Particularly, confirm the lipophilicity of titanium white powder according to the liquid level lifting height of non-polar solvent in the kapillary 10.
Specifically, may further comprise the steps according to the oil loving method of mensuration titanium white powder of the present invention: take by weighing a certain amount of titanium white powder and place kapillary; The kapillary that titanium white powder is housed is immersed in the non-polar solvent; Observe the height h of liquid level in the kapillary at set intervals; With h
2For ordinate, with time t is the horizontal ordinate mapping, thereby confirms the lipophilicity of titanium white powder.
According to the oil loving method of mensuration titanium white powder of the present invention, at h
2Among the figure of-t, slope is more little, and the lipophilicity of titanium white powder is good more; Slope is big more, and the lipophilicity of titanium white powder is poor more.This is because for the good titanium white powder of lipophilicity, between the particle of the titanium white powder in the non-polar solvent 30 immersion kapillaries 10 in the reservoir 20, the liquid level of non-polar solvent this moment in kapillary rises slowly.And for the titanium white powder of lipophilicity difference, because non-polar solvent can not immerse between the particle of titanium white powder, so the liquid level fast rise of non-polar solvent in kapillary.
According to the present invention, in order to measure the lipophilicity of titanium white powder exactly, in the mensuration process, can the temperature of the system of mensuration be kept constant, for example remain on 25 ℃.
In the present invention, said non-polar solvent can be 1, at least a in 2-ethylene dichloride, cyclohexane, tetrahydrofuran, hexane, ethyl acetate, the sherwood oil etc.
In the present invention, preferably, silk screen 40 can be stainless steel cloth, and silk screen can have greater than 460 purpose sieve apertures.In addition, in order accurately to detect the lipophilicity of titanium white powder, preferably, the method for in kapillary, loading titanium white powder is consistent, so that the compaction rate of the titanium white powder after loading is identical.
Hereinafter, will specifically describe according to embodiments of the invention.
As shown in fig. 1, take by weighing the 2g anatase thpe white powder and pack in the kapillary, and kapillary is immersed in the reservoir that cyclohexane is housed, the temperature of whole system is remained on 25 ℃, every in 1 minute mensuration kapillary the height h of liquid level, make h
2-t figure, as shown in Figure 2.
As shown in fig. 1, take by weighing the undressed rutile type titanium white of 2g and pack in the kapillary, and kapillary is immersed in the reservoir that cyclohexane is housed, the temperature of whole system is remained on 25 ℃, every in 1 minute mensuration kapillary the height h of liquid level, make h
2-t figure, as shown in Figure 2.
Embodiment 3
As shown in fig. 1; Take by weighing 2g in the rutile type titanium white that titanate coupling agent is handled is packed kapillary into, and kapillary is immersed in the reservoir that cyclohexane is housed, the temperature of whole system is remained on 25 ℃; Whenever measure the height h of liquid level in the kapillary at a distance from 1 minute, make h
2-t figure, as shown in Figure 2.
Can know the h of anatase thpe white powder with reference to Fig. 2
2-t slope of a curve is bigger, the h of the rutile type titanium white after handling with titanate coupling agent
2-t slope of a curve is less.Therefore can confirm that the lipophilicity of anatase thpe white powder is relatively poor, and better with the lipophilicity of the rutile type titanium white after the titanate coupling agent processing.
Can detect the lipophilicity of titanium white powder simply, fast and exactly according to the oil loving method of detection titanium white powder of the present invention.In addition, the pick-up unit that detection method of the present invention adopted is simple, cost is low, is convenient to operation.
Claims (7)
1. one kind is detected the oil loving method of titanium white powder, it is characterized in that said method comprising the steps of:
Titanium white powder is placed kapillary;
The kapillary that titanium white powder is housed is immersed in the non-polar solvent;
Observe the liquid level of non-polar solvent in the kapillary,
Wherein, said liquid level rises fast more, and the lipophilicity of titanium white powder is poor more, and said liquid level rises slow more, and the lipophilicity of titanium white powder is good more.
2. the oil loving method of detection titanium white powder according to claim 1 is characterized in that said non-polar solvent is 1, at least a in 2-ethylene dichloride, cyclohexane, tetrahydrofuran, hexane, ethyl acetate, the sherwood oil.
3. the oil loving method of detection titanium white powder according to claim 1, it is characterized in that with liquid level square be ordinate, be the horizontal ordinate mapping with time, slope is big more, the lipophilicity of titanium white powder is poor more, slope is more little, the lipophilicity of titanium white powder is good more.
4. the oil loving method of detection titanium white powder according to claim 1 is characterized in that in said bottom capillaceous silk screen being installed, so that titanium white powder is remained in the kapillary.
5. the oil loving method of detection titanium white powder according to claim 4 is characterized in that said silk screen is a stainless steel cloth.
6. the oil loving method of detection titanium white powder according to claim 4 is characterized in that said silk screen has greater than 460 purpose sieve apertures.
7. the oil loving method of detection titanium white powder according to claim 1 is characterized in that in detecting the oil loving process of titanium white powder, keeping the temperature-resistant of detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102959669A CN102393444A (en) | 2011-09-28 | 2011-09-28 | Method for detecting lipophilicity of titanium white |
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|---|---|---|---|
| CN2011102959669A CN102393444A (en) | 2011-09-28 | 2011-09-28 | Method for detecting lipophilicity of titanium white |
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| CN102393444A true CN102393444A (en) | 2012-03-28 |
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| CN2011102959669A Pending CN102393444A (en) | 2011-09-28 | 2011-09-28 | Method for detecting lipophilicity of titanium white |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749071A (en) * | 2015-03-02 | 2015-07-01 | 中国石油天然气股份有限公司 | Device and method for evaluating imbibition agent performance |
| CN105466813A (en) * | 2015-12-30 | 2016-04-06 | 华南理工大学 | Determination method of contact angle of powder and liquid |
| CN105938084A (en) * | 2016-06-28 | 2016-09-14 | 中国石油天然气股份有限公司 | Method for evaluating permeability of chemical imbibition agent |
| CN110274843A (en) * | 2019-08-07 | 2019-09-24 | 攀钢集团重庆钛业有限公司 | The detection method of titanium dioxide water absorption |
-
2011
- 2011-09-28 CN CN2011102959669A patent/CN102393444A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749071A (en) * | 2015-03-02 | 2015-07-01 | 中国石油天然气股份有限公司 | Device and method for evaluating imbibition agent performance |
| CN104749071B (en) * | 2015-03-02 | 2018-04-06 | 中国石油天然气股份有限公司 | Device and method for evaluating imbibition agent performance |
| CN105466813A (en) * | 2015-12-30 | 2016-04-06 | 华南理工大学 | Determination method of contact angle of powder and liquid |
| CN105938084A (en) * | 2016-06-28 | 2016-09-14 | 中国石油天然气股份有限公司 | Method for evaluating permeability of chemical imbibition agent |
| CN110274843A (en) * | 2019-08-07 | 2019-09-24 | 攀钢集团重庆钛业有限公司 | The detection method of titanium dioxide water absorption |
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Application publication date: 20120328 |