CN110006796A - A kind of test method of plastics titanium dioxide partial size - Google Patents
A kind of test method of plastics titanium dioxide partial size Download PDFInfo
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- CN110006796A CN110006796A CN201910429779.1A CN201910429779A CN110006796A CN 110006796 A CN110006796 A CN 110006796A CN 201910429779 A CN201910429779 A CN 201910429779A CN 110006796 A CN110006796 A CN 110006796A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 71
- 239000004033 plastic Substances 0.000 title claims abstract description 61
- 229920003023 plastic Polymers 0.000 title claims abstract description 61
- 238000010998 test method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims description 27
- 229910021641 deionized water Inorganic materials 0.000 claims description 27
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 150000001298 alcohols Chemical class 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 4
- 238000010907 mechanical stirring Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- -1 alkyl sulfonic acid Ester Chemical class 0.000 claims description 2
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 230000010358 mechanical oscillation Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 235000010215 titanium dioxide Nutrition 0.000 description 58
- 239000006228 supernatant Substances 0.000 description 8
- 238000002242 deionisation method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000013102 re-test Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002902 bimodal effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001493 electron microscopy Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003275 alpha amino acid group Chemical group 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of plastics test method of titanium dioxide partial size, including sampling cleaning, centrifuge separation and grain diameter measurement three are step by step rapid.Compared with prior art, in the method for the present invention, by carrying out special pretreatment to titanium dioxide, it effectively can completely remove the organic agent on plastics titanium dioxide surface, to accurately test the finished product grain size of plastics titanium dioxide, and reproducibility is strong, while the present invention accurately detects plastics titanium dioxide partial size using water as carrier, it is environmentally protective.
Description
Technical field
The present invention relates to a kind of plastics test methods of titanium dioxide partial size, belong to titanium dioxide preparation technical field.
Background technique
Titanium dioxide is widely applied as a kind of important industrial chemicals, even more a kind of important white pigment, asepsis environment-protecting
In industries such as coating, plastics, papermaking, ink.China's titanium ore resources are abundant, become titanium white production big country for China and established base
Plinth, the common test index of titanium dioxide have constituent content, partial size, oil absorption, weatherability, whiteness etc., and wherein partial size is a base
Plinth and important performance affect performance of the titanium dioxide in application system, such as dispersibility, whiteness, covering power, glossiness
Deng.Therefore accurately detect the partial size of titanium dioxide, it has great significance to the production for instructing titanium dioxide.
The method of detection partial size has very much, such as microscopic method, electron microscopy, dispersion method, sieve method, sedimentation, laser is sanded
Granularity method etc..Wherein microscopic method, electron microscopy, dispersion method, sieve method and sedimentation is sanded, have that test program is cumbersome or people
The problem of to be affected, thus cause test result inaccurate, poor reproducibility, therefore most of titanium dioxide producers are all made of now
The partial size and particle diameter distribution of the test method test titanium dioxide of laser particle analyzer, quick and precisely, reproducibility is strong for this method.
Coating, titanium dioxide for papermaking are amphiphilic mostly, therefore can directly carry out partial size test, and plastics are with titanium dioxide
Reach good mobility and the compatibility with resin system, it will usually organosilicon is added as organic surface treatment, therefore
Most plastics are hydrophobicity with titanium dioxide.It, can be because of having if using deionized water as carrier in partial size test process
The surface tension that organic silicon surface handles titanium dioxide is big, and occurs bimodal, to artificial at the biggish illusion of partial size, can not reflect it
True partial size；If using a large amount of solvents as carrier, it is unfavorable for environmental protection again.Furthermore plastics are very big with titanium dioxide demand,
It is only second to coating, size controlling is most important for the application performance of titanium dioxide, therefore accurately tests out plastics titanium dioxide
Partial size is just particularly important.The present invention is special pre- by being carried out to plastics with titanium dioxide exactly in order to solve the technical problem
Processing, is used deionized water as carrier, is tested using laser particle analyzer, to obtain a kind of simple and effective, environmentally protective
Method detect the partial size of plastics titanium dioxide.
Summary of the invention
The object of the invention, which is that, overcomes above-mentioned deficiency, provides a kind of test method of plastics titanium dioxide partial size.This hair
Bright technical solution used to solve above-mentioned technical problem is:
To achieve the above object, the present invention is to be achieved through the following technical solutions:
A kind of test method of plastics titanium dioxide partial size, comprising the following steps:
S1, sampling cleaning, takes the plastics of 0.5-2.0g to be placed in 100mL beaker with titanium dioxide first, then adds into beaker
Add the organic solvent of 10-30ml and be uniformly mixed and obtain mixed material, is then taken from mixed material and account for mixed material total amount
10% -50% sample is added to spare in centrifuge tube；
S2, centrifuge separation, into sample, total amount of adding is the deionized water of 1.1-3 times of sample total amount and is stirred 3-10 points
Mixed sample is finally placed in a centrifuge progress centrifugal operation 3-and stands 1-3 minutes after ten minutes and to nominal by clock
Clear liquid is purged, and completes a centrifugal operation, and then into sample, total amount of adding is going for 1.1-3 times of sample total amount again
Ion simultaneously carries out secondary centrifuging operation, and the total degree for carrying out centrifugal operation to sample is not less than 3 times；
The isolated plastics of S2 step are transferred in 100mL beaker, then to burning by S3, grain diameter measurement with titanium dioxide sample
Add dispersing agent and deionized water in cup and plastics be mixed and stirred for uniformly with titanium dioxide sample, then use laser particle analyzer into
Row analysis test.
Further, in the S1 step, organic solvent be alcohols, ketone, ethers, in esters any one or appoint
It anticipates several be used in mixed way.
Further, it in S1, S2 and S3 step, is stirred when carrying out mixing operation using mechanical stirring, magnetic force
It mixes, oscillation, mechanical oscillation, any one mode in ultrasonic disperse manually.
Further, in the S2 step, centrifuge separation is that the total amount of mixed liquor is 5-20mL.
Further, in the S3 step, dispersing agent is calgon, silicate, polycarboxylate, alcohol hydrochlorate, water
Property ammonium salt, maleic anhydride salt, alkyl sulfonic ester, fatty alcohol polyoxyethylene ether, any one in amino acid.
Further, deionized water is added to 40-80mL in the S3 step, and dispersing agent dosage is 0.05-0.5mL,
Wherein deionized water gross mass is 1.5-5 times of plastics titanium dioxide sample gross mass.
Compared with prior art, plastics of the invention are had the following beneficial effects: with titanium dioxide partial size test method
1. in the method for the present invention, by carrying out special pretreatment to titanium dioxide, effectively can completely remove plastics titanium white
The organic agent on powder surface, to accurately test the finished product grain size of plastics titanium dioxide, and reproducibility is strong.
2. this method can accurately detect plastics titanium dioxide partial size using water as carrier, environmentally protective.
Detailed description of the invention
Fig. 1 is the method for the present invention flow chart；
Fig. 2 is the different test method test structure curve graphs of the present invention.
Specific embodiment
Embodiment 1
As illustrated in fig. 1 and 2, the test method of a kind of plastics titanium dioxide partial size, comprising the following steps:
S1, sampling cleaning, takes the plastics of 0.5g to be placed in 100mL beaker with titanium dioxide first, then adds into beaker
The organic solvent of 10ml and be uniformly mixed obtain mixed material, the sample for accounting for mixed material total amount 10% is then taken from mixed material
Product are added to spare in centrifuge tube；
S2, centrifuge separation, total amount of adding is 1.1 times of deionized water from sample total amount to sample are simultaneously stirred 3 minutes, finally
1 minute is stood after mixed sample is placed in a centrifuge progress centrifugal operation 3 minutes and nominal clear liquid is purged, it is complete
Cheng Yici centrifugal operation, then again into sample total amount of adding be 1.1 times of sample total amount deionization and carry out secondary centrifuging
Operation, and the total degree for carrying out centrifugal operation to sample is 3 times；
The isolated plastics of S2 step are transferred in 100mL beaker, then to burning by S3, grain diameter measurement with titanium dioxide sample
Add dispersing agent and deionized water in cup and plastics be mixed and stirred for uniformly with titanium dioxide sample, then use laser particle analyzer into
Row analysis test.
Wherein, in the S1 step, organic solvent is alcohols.
Meanwhile in S1, S2 and S3 step, carry out using mechanical stirring when mixing operation.
It advanced optimizes, in the S2 step, centrifuge separation is that the total amount of mixed liquor is 5mL, the S3 step
In, dispersing agent is calgon, and deionized water is added to 40mL in the S3 step, and dispersing agent dosage is 0.05-mL,
Wherein deionized water gross mass is 1.5 times of plastics titanium dioxide sample gross mass.
Embodiment 2
As illustrated in fig. 1 and 2, the test method of a kind of plastics titanium dioxide partial size, comprising the following steps:
S1, sampling cleaning, takes the plastics of 2.0g to be placed in 100mL beaker with titanium dioxide first, then adds into beaker
The organic solvent of 30ml and be uniformly mixed obtain mixed material, the sample for accounting for mixed material total amount 50% is then taken from mixed material
Product are added to spare in centrifuge tube；
S2, centrifuge separation, total amount of adding is 3 times of deionized water from sample total amount to sample are simultaneously stirred 10 minutes, finally
Mixed sample is placed in a centrifuge and carries out centrifugal operation and stands 3 minutes after ten minutes and nominal clear liquid is purged,
A centrifugal operation is completed, the deionization that then total amount of adding is 3 times of sample total amount into sample again simultaneously carries out secondary centrifuging
Operation, and the total degree for carrying out centrifugal operation to sample is 5 times；
The isolated plastics of S2 step are transferred in 100mL beaker, then to burning by S3, grain diameter measurement with titanium dioxide sample
Add dispersing agent and deionized water in cup and plastics be mixed and stirred for uniformly with titanium dioxide sample, then use laser particle analyzer into
Row analysis test.
Wherein, in the S1 step, organic solvent is alcohols, ketone is mixed with arbitrary proportion.
Meanwhile in S1, S2 and S3 step, then ultrasound point is vibrated using first manual when carrying out mixing operation
The mode of dissipating.
Simultaneously, in the S2 step, centrifuge separation is that the total amount of mixed liquor is 20mL.
It stresses, in the S3 step, dispersing agent is fatty alcohol polyoxyethylene ether；Deionized water adds in S3 step
80mL is added as, dispersing agent dosage is 0.5mL, and wherein deionized water gross mass is 5 times of plastics titanium dioxide sample gross mass.
Embodiment 3
As illustrated in fig. 1 and 2, the test method of a kind of plastics titanium dioxide partial size, comprising the following steps:
S1, sampling cleaning, takes the plastics of 1.5g to be placed in 100mL beaker with titanium dioxide first, then adds into beaker
The organic solvent of 20ml and be uniformly mixed obtain mixed material, then taken from mixed material and account for mixed material total amount 10% -50%
Sample be added to it is spare in centrifuge tube；
S2, centrifuge separation, total amount of adding is 2.1 times of deionized water from sample total amount to sample are simultaneously stirred 6 minutes, finally
Mixed sample is placed in a centrifuge and carries out centrifugal operation and stands 2 minutes after five minutes and nominal clear liquid is purged, it is complete
Cheng Yici centrifugal operation, then again into sample total amount of adding be 2 times of sample total amount deionization and carry out secondary centrifuging work
Industry, and the total degree for carrying out centrifugal operation to sample is 8；
The isolated plastics of S2 step are transferred in 100mL beaker, then to burning by S3, grain diameter measurement with titanium dioxide sample
Add dispersing agent and deionized water in cup and plastics be mixed and stirred for uniformly with titanium dioxide sample, then use laser particle analyzer into
Row analysis test.
Wherein, in the S1 step, organic solvent is esters.
Meanwhile in S1, S2 and S3 step, shaken when carrying out mixing operation using first magnetic agitation, rear machinery
The mode swung.
Meanwhile in the S2 step, centrifuge separation is that the total amount of mixed liquor is 15mL.
It advanced optimizes, in the S3 step, dispersing agent is amino acid, and deionized water is added in the S3 step
For 50mL, dispersing agent dosage is 0.3mL, and wherein deionized water gross mass is 3 times of plastics titanium dioxide sample gross mass.
Embodiment 4
As illustrated in fig. 1 and 2, the test method of a kind of plastics titanium dioxide partial size, comprising the following steps:
By 0.5g plastics with titanium dioxide 1# in 100mL beaker, mechanical stirring 3min after the mixing of 30ml alcohols solvent is added；Then
It takes 5mL to move into centrifuge tube and is placed in a centrifuge centrifugation 1min;30mL deionized water ultrasonic disperse is added after discarding supernatant liquor
3min, which is placed in centrifuge, is centrifuged 1min；It is primary to discard supernatant liquor repetition step 2, step 3)；After discarding supernatant liquor,
Take 0.5g sample in 100mL beaker, after silicate 0.05mL and deionized water 40mL ultrasonic disperse 3min is added, with laser grain
Degree instrument is tested, and retest 3 times.
Embodiment 5:
As illustrated in fig. 1 and 2, the test method of a kind of plastics titanium dioxide partial size, comprising the following steps:
By 1.0g plastics with titanium dioxide 2# in 100mL beaker, machinery is stirred after 45ml ketone and the mixing of ethers mixed solvent is added
Mix 5min；Then it takes 10mL to move into centrifuge tube and is placed in a centrifuge centrifugation 2min;45mL deionization is added after discarding supernatant liquor
Water ultrasonic disperse 5min, which is placed in centrifuge, is centrifuged 2min；It is primary to discard supernatant liquor repetition step 2, step 3)；It discards
It after layer clear liquid, takes 1.0g sample in 100mL beaker, polycarboxylate sodium 0.2mL and deionized water 60mL ultrasonic disperse is added
It after 5min, is tested with laser particle analyzer, retest 3 times.
Embodiment 6:
As shown in Figure 1, a kind of test method of plastics with titanium dioxide partial size, comprising the following steps:
By 2.0g plastics with titanium dioxide 3# in 100mL beaker, magnetic agitation 10min after the mixing of 60ml esters solvent is added；So
After take 20mL move into centrifuge tube be placed in a centrifuge centrifugation 3min;60mL deionized water ultrasonic disperse is added after discarding supernatant liquor
10min, which is placed in centrifuge, is centrifuged 3min；It is primary to discard supernatant liquor repetition step 2, step 3)；After discarding supernatant liquor,
Take 2.0g sample in 100mL beaker, after alcohol hydrochlorate 0.5mL and deionized water 80mL ultrasonic disperse 10min is added, with laser grain
Degree instrument is tested, and retest 3 times.
The measurement knot that the actual result of the embodiment of the present invention 4-6 is counted, and obtains it with traditional measurement method
Structure carries out summarizing comparison, obtains following experimental data:
Note: particle diameter distribution=(D87/D13)1/2
From figure as it can be seen that comparative example 2 occurs bimodal, it is unable to respond its true partial size, and uses the method test sample in of the invention
Accuracy and reproducibility are preferable, and almost consistent with the partial size tested of comparative example 1, it is seen that this method can be quick and precisely effective
Test the partial size of plastics titanium dioxide.
Compared with prior art, plastics of the invention are had the following beneficial effects: with titanium dioxide partial size test method
1. in the method for the present invention, by carrying out special pretreatment to titanium dioxide, effectively can completely remove plastics titanium white
The organic agent on powder surface, to accurately test the finished product grain size of plastics titanium dioxide, and reproducibility is strong.
2. this method can accurately detect plastics titanium dioxide partial size using water as carrier, environmentally protective.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of plastics test method of titanium dioxide partial size, it is characterised in that: the test of plastics titanium dioxide partial size
Method the following steps are included:
S1, sampling cleaning, takes the plastics of 0.5-2.0g to be placed in 100mL beaker with titanium dioxide first, then adds into beaker
Add the organic solvent of 10-30ml and be uniformly mixed and obtain mixed material, is then taken from mixed material and account for mixed material total amount
10% -50% sample is added to spare in centrifuge tube；
S2, centrifuge separation, into sample, total amount of adding is the deionized water of 1.1-3 times of sample total amount and is stirred 3-10 points
Mixed sample is finally placed in a centrifuge progress centrifugal operation 3-and stands 1-3 minutes after ten minutes and to nominal by clock
Clear liquid is purged, and completes a centrifugal operation, and then into sample, total amount of adding is going for 1.1-3 times of sample total amount again
Ion simultaneously carries out secondary centrifuging operation, and the total degree for carrying out centrifugal operation to sample is not less than 3 times；
The isolated plastics of S2 step are transferred in 100mL beaker, then to burning by S3, grain diameter measurement with titanium dioxide sample
Add dispersing agent and deionized water in cup and plastics be mixed and stirred for uniformly with titanium dioxide sample, then use laser particle analyzer into
Row analysis test.
2. a kind of test method of plastics titanium dioxide partial size according to claim 1, which is characterized in that the S1 step
In rapid, organic solvent be alcohols, ketone, ethers, in esters any one or any several be used in mixed way.
3. the test method of a kind of plastics titanium dioxide partial size according to claim 1, which is characterized in that the S1,
In S2 and S3 step, divided when carrying out mixing operation using mechanical stirring, magnetic agitation, manual oscillation, mechanical oscillation, ultrasound
Any one mode in dissipating.
4. a kind of test method of plastics titanium dioxide partial size according to claim 1, which is characterized in that the S2 step
In rapid, centrifuge separation is that the total amount of mixed liquor is 5-20mL.
5. a kind of test method of plastics titanium dioxide partial size according to claim 1, which is characterized in that the S3 step
In rapid, dispersing agent is calgon, silicate, polycarboxylate, alcohol hydrochlorate, aqueous ammonium salt, maleic anhydride salt, alkyl sulfonic acid
Ester, fatty alcohol polyoxyethylene ether, any one in amino acid.
6. a kind of test method of plastics titanium dioxide partial size according to claim 1, which is characterized in that the S3 step
Deionized water is added to 40-80mL in rapid, and dispersing agent dosage is 0.05-0.5mL, and wherein deionized water gross mass is plastics titanium
1.5-5 times of white powder sample gross mass.
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| CN110940622A (en) * | 2019-12-20 | 2020-03-31 | 中盐吉兰泰氯碱化工有限公司 | Paste resin particle size distribution determination method |
| CN111175479A (en) * | 2020-03-31 | 2020-05-19 | 龙佰四川钛业有限公司 | Method for testing grinding performance of titanium white kiln product |
| CN111735732A (en) * | 2020-07-03 | 2020-10-02 | 江苏亨通精工金属材料有限公司 | Method for testing copper content of plastic particles of dry copper rice mill |
| CN113092327A (en) * | 2021-04-12 | 2021-07-09 | 钢铁研究总院淮安有限公司 | Iron-chromium-aluminum powder granularity testing method |
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