CN106918534B - A kind of rheology detection method of varnish - Google Patents
A kind of rheology detection method of varnish Download PDFInfo
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- CN106918534B CN106918534B CN201710234271.7A CN201710234271A CN106918534B CN 106918534 B CN106918534 B CN 106918534B CN 201710234271 A CN201710234271 A CN 201710234271A CN 106918534 B CN106918534 B CN 106918534B
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- 239000002966 varnish Substances 0.000 title claims abstract description 84
- 238000000518 rheometry Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000004088 simulation Methods 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000010422 painting Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000012797 qualification Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 38
- 238000007665 sagging Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 10
- 239000003973 paint Substances 0.000 description 7
- 238000007689 inspection Methods 0.000 description 5
- 239000004922 lacquer Substances 0.000 description 4
- 241000675108 Citrus tangerina Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229920003180 amino resin Polymers 0.000 description 2
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 2
- XQAABEDPVQWFPN-UHFFFAOYSA-N octyl 3-[3-(benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propanoate Chemical compound CC(C)(C)C1=CC(CCC(=O)OCCCCCCCC)=CC(N2N=C3C=CC=CC3=N2)=C1O XQAABEDPVQWFPN-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/32—Paints; Inks
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of rheology detection methods of varnish, comprising the following steps: step 1: preparing varnish, varnish is then diluted to execution conditions, tested viscosity, shear rate when coating stirring is simulated, step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing, step 3: tested viscosity, viscosity change when simulation sprays, step 4: tested viscosity, the viscosity change of analog stream usually judges whether the rheology of varnish is qualified.The stress condition that method of the invention passes through viscosity simulation spraying and levelling under test different shear rate, it can predict varnish spraying and the viscosity change during levelling, the bad disadvantages such as sagging, the orange peel for effectively varnish being avoided to occur at the scene, to judge whether the varnish meets the requirements in advance.
Description
Technical field
The invention belongs to the thixotropy detection method of coating more particularly to a kind of rheology detection methods of varnish.
Background technique
When paint spraying, because of the viscosity change of coating itself and flowing and the fluctuation of painting environment, painting is sometimes resulted in
Layer generates a problem that sagging or orange peel.
Varnish in paint coatings is higher to its appearance requirement usually as outermost coating.And the film thickness of varnish compared with
Thickness is then easier phenomena such as sagging and bad order occurs.Present each common viscosity of the coating detection method of company, such as using viscous
Cup, rotational viscometer etc. are spent, the thixotropy of coating can not be accurately measured, film defect occurs when improving paint spraying construction
Risk.
In view of this, being when predicting that varnish uses at the scene it is necessary to provide a kind of rheology detection method of varnish
It is no that the bad phenomenons such as sagging and orange peel can occur.
Summary of the invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of rheology detection sides of simple and easy varnish
Method, it is possible to prevente effectively from the bad phenomenons such as sagging and orange peel for occurring when the practical coating in most of scene.
To achieve the goals above, The technical solution adopted by the invention is as follows:
One aspect of the present invention provides a kind of rheology detection method of varnish, comprising the following steps:
Step 1: preparing varnish, and varnish is then diluted to execution conditions, tested viscosity, cutting when simulation coating stirs
Cutting speed rate；
Step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing；
Step 3: tested viscosity, viscosity change when simulation sprays；
Step 4: tested viscosity, the viscosity change of analog stream usually judge whether the rheology of the varnish is qualified.
Preferably, the step 1 medium shear rate is 50-100s-1。
Preferably, the step 2 medium shear rate is 0.05-0.5s-1。
Preferably, the step 3 medium shear rate is 500-2000s-1。
Preferably, the step 4 medium shear rate is 0.01-1s-1。
Preferably, the tested viscosity is tested under conditions of temperature is 20~25 DEG C.
Preferably, the rheology for judging the varnish whether qualification be step 3 simulation spraying when viscosity change institute
The average value of measured data is less than 0.2Pa.s, and the maximum value of the viscosity change the data obtained of step 4 analog stream usually is higher than
5Pa.s。
Due to the adoption of the above technical scheme, the present invention has the following advantages and beneficial effects:
Method of the invention can test viscosity of the varnish under different shear rate, the construction feelings of simulation varnish at the scene
Condition, to obtain preferable range of viscosities, the sagging and levelling of balance coating at the scene guarantee preferable coating appearance.According to
The data measured, can be confirmed varnish under different shear rate, viscosity be in what value when, levelling and sagging performance are best.
Method of the invention, can be with by the stress condition of viscosity simulation spraying and levelling under test different shear rate
Viscosity change during the spraying of prediction varnish and levelling, the bad disadvantage such as the sagging for effectively avoiding varnish from occurring at the scene, orange peel,
To judge whether the varnish meets the requirements in advance.
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this
The protection scope of invention.
Embodiment 1
Step 1: varnish a, varnish b, varnish c and varnish d are prepared.Lacquer formulation (parts by weight) is as shown in table 1:
Table 1
Varnish is diluted to execution conditions (applying 4 glasss 32 seconds, 23 DEG C) with dimethylbenzene, using rheometer, simulates coating stirring
When shear rate, tested viscosity.Test condition is as follows: equipment manufacturer is Anton Paar limited liability company, and device model is
Phsica MCR rheometer (the advanced rotational rheometer of MCR), device temperature is 23 DEG C, and shear rate is 50-100s-1, inspection
Surveying the time is 10-20s, one data of test in each second.
Step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing.Test condition is as follows: instrument factory
Family is Anton Paar limited liability company, and device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is
0.05-0.5s-1, detection time is 10-20s.Every 1s tests a data, and before spraying after simulation stirring, viscosity when standing is extensive
It is multiple.
Step 3: tested viscosity, viscosity change when simulation sprays.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 500-2000s-1, inspection
Surveying the time is 30-150s.Every 1s tests a data, is averaged, viscosity change when simulation sprays.
Step 4: tested viscosity, the viscosity change of analog stream usually.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 0.01-1s-1, detection
Time is 120-1200s.Every 1s tests a data, is maximized, the viscosity recovery of analog stream usually.
Step 5: each varnish is sprayed on the steel plate with middle painting, device therefor and parameter are as shown in table 2:
Table 2
After spraying, levelling 7 minutes at 23 DEG C are toasted 30 minutes at 140 DEG C later.
Step 6: testing the appearance of each varnish using Byk tangerine peel instrument wavescan, including the obscure degree of du, Lw long wave, Sw short
The value of wave, DOI clarity；Every piece of painting apply flitch test three times, is averaged.
It is as shown in table 3 to test the data obtained:
Table 3
As the data in table 3 indicates, the rheological property of tetra- varnish of a, b, c, d is tested with method of the invention.Representated by a
Varnish, viscosity change institute measured data average value when step 3 simulation spraying are less than 0.2Pa.s, step 4 analog stream usually viscous
Degree variation institute's measured data maximum value is greater than 5Pa.s, and appearance and sagging performance are all good when reality sprays.
Varnish representated by b is 3.8Pa.s in the viscosity change institute measured data maximum value of step 4 analog stream usually, much
Less than 5Pa.s, levelling stage viscosity recovery is slower, so sagging limit only has 43 microns, sagging occurs for when in-situ spraying.
Varnish representated by c is greater than 5.0Pa.s, stream in the viscosity change institute measured data maximum value of step 4 analog stream usually
Flat stage viscosity recovery is preferable, no sag phenomenon, but simulates viscosity change institute measured data average value when spraying in step 3
For 0.28Pa.s, spraying stage viscosity is slightly higher, and du, Lw, Sw are higher, and DOI is relatively low, and appearance is bad.
Varnish representated by d simulates viscosity change institute measured data average value when spraying in step 3 and is less than 0.2Pa.s, step
The viscosity change institute measured data maximum value of four analog streams usually is greater than 5.0Pa.s, and levelling and sagging performance are all preferable.According to data
It may determine that, viscosity change institute measured data average value when step 3 simulation sprays is less than 0.2Pa.s, and du, Sw, Lw are lower, DOI
Higher, appearance is good.The maximum value of the viscosity change the data obtained of step 4 analog stream usually be higher than 5Pa.s, sagging limit compared with
Height, no sag risk.The practical performance in paint line of four varnish and the conclusion that rheology detects are more consistent；Pass through the rheology
Method can be confirmed that varnish is suitably formulated.
Embodiment 2
Step 1: preparing varnish, and lacquer formulation (parts by weight) is as shown in table 4:
Table 4
| Varnish | |
| A870 acrylic resin | 540 |
| The 582-2 amino resins of Xinhua Resin Factory, Shanghai | 270 |
| Tinuvin384 | 0.53 |
| Tinuvin292 | 0.53 |
| Byk306 | 0.5 |
| Byk331 | 0.8 |
| Dimethylbenzene | 42 |
| 100# solvent | 132 |
| 2-Butoxyethyl acetate | 13.64 |
| It amounts to | 1000 |
Varnish is diluted to execution conditions (applying 4 glasss 28 seconds, 23 DEG C) with dimethylbenzene.Using rheometer, coating stirring is simulated
When shear rate, tested viscosity.Test condition is as follows: equipment manufacturer is Anton Paar limited liability company, and device model is
Phsica MCR rheometer (the advanced rotational rheometer of MCR), device temperature is 23 DEG C, and shear rate is 50-100s-1, inspection
Surveying the time is 10-20s, one data of test in each second.
Step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing.Test condition is as follows: instrument factory
Family is Anton Paar limited liability company, and device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is
0.05-0.5s-1, detection time is 10-20s.Every 1s tests a data, and before spraying after simulation stirring, viscosity when standing is extensive
It is multiple.
Step 3: tested viscosity, viscosity change when simulation sprays.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 500-2000s-1, inspection
Surveying the time is 30-150s.Every 1s tests a data, is averaged, viscosity change when simulation sprays.
Step 4: tested viscosity, the viscosity change of analog stream usually.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 0.01-1s-1, detection
Time is 120-1200s.Every 1s tests a data, is maximized, the viscosity recovery of analog stream usually.
Step 5: the lacquer varnish on the steel plate with middle painting, device therefor and parameter are as shown in table 5:
Table 5
| Revolve cup type | Sames |
| Revolve cup diameter | 50mm |
| Revolve cup revolving speed | 35krpm |
| Walk rifle speed | 0.65 meter per second |
| Shaping air | 400NL/min |
| Rifle away from | 250mm |
| Spray voltage | -75kv |
| Coating flow | 290cc/min |
After spraying, levelling 7 minutes at 23 DEG C are toasted 30 minutes at 140 DEG C later.
Step 6: short using the appearance of Byk tangerine peel instrument wavescan test varnish, including the obscure degree of du, Lw long wave, Sw
The value of wave, DOI clarity；Every piece of painting apply flitch test three times, is averaged.
It is as shown in table 6 to test the data obtained:
Table 6
As shown by the data in Table 6, the rheological property under varnish difference working viscosity is tested with method of the invention.When applying
Work viscosity is 28 seconds, and viscosity change institute measured data average value when step 3 simulation sprays is less than 0.2Pa.s, step 4 analog stream
Viscosity change institute measured data maximum value usually is 3.4Pa.s, is less than 5.0Pa.s, appearance is preferable when reality sprays, but sagging pole
It limits relatively low.Viscosity change institute measured data average value when working viscosity is 32 seconds, and step 3 simulation sprays is less than 0.2Pa.s,
The viscosity change institute measured data maximum value of step 4 analog stream usually is greater than 5Pa.s, and appearance and sagging performance be all when practical spraying
It is good.When working viscosity is 36 seconds, the viscosity change institute measured data maximum value of step 4 analog stream usually is greater than 5.0Pa.s, levelling
Stage viscosity recovery is preferable, no sag phenomenon, but is in the viscosity change institute measured data average value that step 3 is simulated when spraying
0.29Pa.s, spraying stage viscosity is slightly higher, and du, Lw, Sw are higher, and DOI is relatively low, and appearance is bad.The varnish is practical in paint line
It is more consistent to show the conclusion detected with rheology, the suitable working viscosity of varnish can be confirmed by the rheological method.
Embodiment 3
Step 1: varnish is prepared.Lacquer formulation (parts by weight) is as shown in table 7: varnish a, varnish b, varnish c formula are identical,
But standing time is different.Then varnish is diluted to execution conditions (applying 4 glasss 32 seconds, 23 DEG C) with dimethylbenzene.Using rheometer,
Simulate shear rate when coating stirring, tested viscosity.Test condition is as follows: equipment manufacturer is Anton Paar limited liability company,
Device model is Phsica MCR rheometer (the advanced rotational rheometer of MCR), and device temperature is 23 DEG C, and shear rate is
50-100s-1, detection time is 10-20s, one data of test in each second.
Table 7
| Varnish a | Varnish b | Varnish c | Varnish d | |
| A870 acrylic resin | 540 | 540 | 540 | 540 |
| Xinhua Resin Factory, Shanghai's 582-2 amino resins | 270 | 270 | 270 | 270 |
| Tinuvin384 | 0.53 | 0.53 | 0.53 | 0.53 |
| Tinuvin292 | 0.53 | 0.53 | 0.53 | 0.53 |
| Byk306 | 0.5 | 0.5 | 0.5 | 0.5 |
| Byk331 | 0.8 | 0.8 | 0.8 | 0.8 |
| Dimethylbenzene | 42 | 42 | 42 | 42 |
| 100# solvent | 132 | 132 | 132 | 132 |
| 2-Butoxyethyl acetate | 13.64 | 13.64 | 13.64 | 13.64 |
| It amounts to | 1000 | 1000 | 1000 | 1000 |
| The room temperature time after preparation | 1 day | 3 months | 6 months | 9 months |
Step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing.Test condition is as follows: instrument factory
Family is Anton Paar limited liability company, and device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is
0.05-0.5s-1, detection time is 10-20s.Every 1s tests a data, and before spraying after simulation stirring, viscosity when standing is extensive
It is multiple.
Step 3: tested viscosity, viscosity change when simulation sprays.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 500-2000s-1, inspection
Surveying the time is 30-150s.Every 1s tests a data, is averaged, viscosity change when simulation sprays.
Step 4: tested viscosity, the viscosity change of analog stream usually.Test condition is as follows: equipment manufacturer is Anton Paar stock
Part Co., Ltd, device model is the advanced rotational rheometer of MCR, and device temperature is 23 DEG C, and shear rate is 0.01-1s-1, detection
Time is 120-1200s.Every 1s tests a data, is maximized, the viscosity recovery of analog stream usually.
Step 5: each varnish is sprayed on the steel plate with middle painting, device therefor and parameter are as shown in table 8:
Table 8
After spraying, levelling 7 minutes at 23 DEG C are toasted 30 minutes at 140 DEG C later.
Step 6: testing the appearance of each varnish using Byk tangerine peel instrument wavescan, including the obscure degree of du, Lw long wave, Sw short
The value of wave, DOI clarity；Every piece of painting apply flitch test three times, is averaged.
It is as shown in table 9 to test the data obtained:
Table 9
As shown in data in table 9, the rheological property of tetra- varnish of a, b, c, d is tested with method of the invention.Representated by a
Varnish, viscosity change institute measured data average value when step 3 simulation spraying are less than 0.2Pa.s, step 4 analog stream usually viscous
Degree variation institute's measured data maximum value is greater than 5Pa.s, and appearance and sagging performance are all good when reality sprays.Varnish representated by b, step 3
Viscosity change institute measured data average value when simulation spraying is less than 0.2Pa.s, and the viscosity change of step 4 analog stream usually is surveyed
Data maximums are greater than 5Pa.s, and appearance is slightly poorer to a varnish when reality sprays, but meets Customer Standard, while sagging is preferable.c
Representative varnish, viscosity change institute measured data average value when step 3 simulation sprays are less than 0.2Pa.s, and step 4 simulates levelling
When viscosity change institute measured data maximum value be greater than 5Pa.s, appearance is slightly poorer to a and b varnish when practical spraying, but meets client
Standard, while sagging is preferable.Varnish representated by d is greater than in the viscosity change institute measured data average value that step 3 is simulated when spraying
0.2Pa.s, the viscosity change institute measured data maximum value of step 4 analog stream usually is greater than 5.0Pa.s, though sagging is preferable, appearance
It is poor to be unable to satisfy customer requirement.The practical performance in paint line of four varnish and the conclusion that rheology detects are more consistent, lead to
Crossing the rheological method can be confirmed the shelf-life of varnish.
The rheology detection method of varnish of the invention can test viscosity of the varnish under different shear rate, and simulation is clear
The condition of construction of paint at the scene, to obtain preferable range of viscosities, the sagging and levelling of balance coating at the scene guarantee preferable
Coating appearance.According to the data measured, varnish can be confirmed under different shear rate, when viscosity is in any value, levelling
It is best with sagging performance.
The rheology detection method of varnish of the invention is by the viscosity simulation spraying under test different shear rate and flows
Flat stress condition can predict that varnish is sprayed with the viscosity change during levelling, the stream for effectively avoiding varnish from occurring at the scene
The bad disadvantage such as extension, orange peel, to judge whether the varnish meets the requirements in advance.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, the embodiment that the present invention is enumerated can not give thoroughly all embodiments
To the greatest extent, all to belong to obvious changes or variations that technical solution of the present invention is extended out still in protection model of the invention
The column enclosed.All documents referred in the present invention are incorporated herein by reference, independent just as a document
It is cited as with reference to such.
Claims (3)
1. a kind of rheology detection method of varnish, it is characterised in that: the following steps are included:
Step 1: preparing varnish, and varnish is then diluted to execution conditions, tested viscosity, shearing speed when simulation coating stirs
Rate；
Step 2: tested viscosity, before being sprayed after simulation stirring, viscosity recovery when standing；
Step 3: tested viscosity, viscosity change when simulation sprays；
Step 4: tested viscosity, the viscosity change of analog stream usually judge whether the rheology of the varnish is qualified；
Step 5: each varnish is sprayed on the steel plate with middle painting；
After spraying, levelling 7 minutes at 23 DEG C are toasted 30 minutes at 140 DEG C later；
The step 1 medium shear rate is 50-100s-1；
The step 2 medium shear rate is 0.05-0.5s-1；
The step 3 medium shear rate is 500-2000s-1；
The step 4 medium shear rate is 0.01-1s-1；
Viscosity change institute measured data of the rheology for judging varnish when whether qualification is step 3 simulation spraying it is flat
Mean value is less than 0.2Pa.s；
The rheology for judging the varnish whether qualification be the viscosity change the data obtained of step 4 analog stream usually most
Big value is higher than 5Pa.s.
2. the rheology detection method of varnish according to claim 1, it is characterised in that: the tested viscosity is in temperature
It is tested under conditions of being 20~25 DEG C.
3. the rheology detection method of varnish according to claim 1 or 2, it is characterised in that: the execution conditions are to apply 4
Cup 32 seconds, 23 DEG C or apply 4 glasss 28 seconds, 23 DEG C.
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2017
- 2017-04-11 CN CN201710234271.7A patent/CN106918534B/en active Active
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|---|---|---|---|---|
| US5212981A (en) * | 1988-01-11 | 1993-05-25 | Basf Lacke & Farben Ag | Method of and apparatus for measuring the viscosity of materials |
| US5456105A (en) * | 1993-10-14 | 1995-10-10 | International Paper Company | Rheometer for determining extensional elasticity |
| CN2932369Y (en) * | 2006-07-05 | 2007-08-08 | 崔兆星 | A rheometer |
| CN102393348A (en) * | 2011-10-26 | 2012-03-28 | 常州天合光能有限公司 | Method for testing rheological property of conductive slurry |
| CN105758766A (en) * | 2016-03-15 | 2016-07-13 | 廊坊立邦涂料有限公司 | Method measuring inter-batch stability of latex paint by using rotational rheometer |
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| Title |
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| "涂料应用中的流变技术";金建锋;《上海涂料》;20071130;第45卷(第11期);第46页右栏最后1段-47页左栏第1段及表1 * |
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Effective date of registration: 20191209 Address after: 201201, No. 287, pioneering Road, Jinqiao Export Processing Zone, Shanghai, Pudong New Area Co-patentee after: Zhangzhou Xinzhanwang Chemical Co., Ltd. Patentee after: Libang Coatings (China) Co., Ltd. Address before: 201201, No. 287, pioneering Road, Jinqiao Export Processing Zone, Shanghai, Pudong New Area Patentee before: Libang Coatings (China) Co., Ltd. |