CN110487678A - A kind of test method of water-absorbing resin monomer residue - Google Patents
A kind of test method of water-absorbing resin monomer residue Download PDFInfo
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- CN110487678A CN110487678A CN201810464092.7A CN201810464092A CN110487678A CN 110487678 A CN110487678 A CN 110487678A CN 201810464092 A CN201810464092 A CN 201810464092A CN 110487678 A CN110487678 A CN 110487678A
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- water
- tabletting
- drop
- contact angle
- test method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention provides a kind of test method of water-absorbing resin monomer residue, tested resin is crushed through pulverizer, ground machine is screened after carrying out grinding refinement by sieve, is placed in drying box and is dried for standby；Resulting tested toner is screened in standard IR tabletting die cavity, tablet press machine is placed in and carries out tabletting；The taking-up of gained press sheet compression is placed on the platen of dynamic contact angle analyzer, carries out dynamic image record to tabletting using Static Contact angle, step of the present invention can be quantified as normalizing operation, can be reduced error artificial in test process.Using Computer Multimedia Technology, optical system and camera are combined, and show that on the computer screen, measurement data is accurate with making the image definition of drop, and repeatability is strong.A kind of reliable testing standard is provided for high speed imbibition sample.In addition to this, also very convenient in the influence of measurement and analog temperature to material rate of liquid aspiration since many contact angle testers have temperature controlling function.
Description
Technical field
The present invention is a kind of test method of water-absorbing resin monomer residue, belongs to chemical field.
Background technique
In the prior art, water-absorbing resin (Super Absorbent Polymer, SAP) is a kind of new function macromolecule
Material.It has the function of the several hundred high water absorptions to thousands of times of water of absorptance itself weight, and water retention property is excellent, once water suction is swollen
When being expanded into as hydrogel, water is difficult to separate pressurization.Super absorbent resin is a kind of with a large amount of hydrophilic radicals
Functional high molecule material.With its high imbibition ability, high rate of liquid aspiration and high liquid-keeping property, it is widely used in physiological hygiene use
Product, such as sanltary towel, paper diaper, adult function nursing pad, blotting paper, pet pads.So that such product is significantly slight
Change, miniaturization, comfortableization, has brought Gospel, be the irreplaceable ideal product of hygiene article sector, but it is traditional
Water-absorbing resin has that test method is inconvenient, so needing a kind of new scheme to solve the above problems.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of test sides of water-absorbing resin monomer residue
Method, to solve the problems mentioned in the above background technology.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of water-absorbing resin monomer is residual
The test method stayed, includes the following steps:
S1: tested resin is crushed through pulverizer, ground machine is screened after carrying out grinding refinement by sieve, is placed in dry
Dry case is dried for standby；
S2: it takes step S1 to screen resulting tested toner in standard IR tabletting die cavity, is placed in tablet press machine and is pressed
Piece；
S3: the taking-up of press sheet compression obtained by step S2 is placed on the platen of dynamic contact angle analyzer, is surveyed using static contact angle
Amount method carries out dynamic image record to tabletting, measures drop since touching press sheet compression to press sheet compression degrees of expansion
Time t until unchanged, so that it is determined that rate of water absorption, and by the sampling knob of dynamic contact angle analyzer extract drop or
Drop is extruded with micro syringe.
Further, temperature is constant at 70-110 DEG C in drying box drying course, drying time 15-45min.
Further, the tested toner dosage is 250-300mg, and pressure setting range is 20MPa-30MPa,
The tabletting duration is 25-40s.
Further, the drop is distilled water or sodium chloride solution, 0.6 μ of μ L~30 of size of drop
L。
Beneficial effects of the present invention: a kind of test method of water-absorbing resin monomer residue of the invention, of the invention is beneficial
Effect is: step of the present invention can be quantified as normalizing operation, can be reduced error artificial in test process.Utilize the more matchmakers of computer
Body technique, optical system and camera combine, and show on the computer screen with making the image definition of drop, in video image
Observe imbibition starting point, terminal and change procedure, simple, intuitive.Measurement data is accurate, and repeatability is strong.It is mentioned for high speed imbibition sample
A kind of reliable testing standard is supplied.In addition to this, due to many contact angle testers have temperature controlling function, measurement and
Influence of the analog temperature to material rate of liquid aspiration is also very convenient.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
The present invention provides a kind of technical solution: a kind of test method of water-absorbing resin monomer residue includes the following steps:
S1: tested resin is crushed through pulverizer, ground machine is screened after carrying out grinding refinement by sieve, is placed in dry
Dry case is dried for standby；
S2: it takes step S1 to screen resulting tested toner in standard IR tabletting die cavity, is placed in tablet press machine and is pressed
Piece；
S3: the taking-up of press sheet compression obtained by step S2 is placed on the platen of dynamic contact angle analyzer, is surveyed using static contact angle
Amount method carries out dynamic image record to tabletting, measures drop since touching press sheet compression to press sheet compression degrees of expansion
Time t until unchanged, so that it is determined that rate of water absorption, and by the sampling knob of dynamic contact angle analyzer extract drop or
Drop is extruded with micro syringe.
Temperature is constant at 70-110 DEG C in drying box drying course, drying time 15-45min.
The tested toner dosage is 250-300mg, and pressure setting range is 20MPa-30MPa, and tabletting is lasting
Time is 25-40s.
The drop is distilled water or sodium chloride solution, 0.6 μ of μ L~30 L of size of drop.
Embodiment 1: tested resin is crushed through pulverizer, ground machine is sieved after carrying out grinding refinement by sieve
Choosing, is placed in drying box and is dried for standby；It takes step S1 to screen resulting tested toner in standard IR tabletting die cavity, sets
Tabletting is carried out in tablet press machine；The taking-up of press sheet compression obtained by step S2 is placed on the platen of dynamic contact angle analyzer, use is quiet
State contact angle measurement carries out dynamic image record to tabletting, measures drop since touching press sheet compression to tabletting sample
Time t until product degrees of expansion is unchanged, so that it is determined that rate of water absorption, and pass through the sampling knob of dynamic contact angle analyzer
It extracts drop or extrudes drop with micro syringe, wherein temperature is constant at 80 DEG C in drying box drying course, drying time
25min, being tested toner dosage is 260mg, and pressure setting range is 25MPa, and the tabletting duration is 30s.
Embodiment 2: tested resin is crushed through pulverizer, ground machine is sieved after carrying out grinding refinement by sieve
Choosing, is placed in drying box and is dried for standby；It takes step S1 to screen resulting tested toner in standard IR tabletting die cavity, sets
Tabletting is carried out in tablet press machine；The taking-up of press sheet compression obtained by step S2 is placed on the platen of dynamic contact angle analyzer, use is quiet
State contact angle measurement carries out dynamic image record to tabletting, measures drop since touching press sheet compression to tabletting sample
Time t until product degrees of expansion is unchanged, so that it is determined that rate of water absorption, and pass through the sampling knob of dynamic contact angle analyzer
It extracts drop or extrudes drop with micro syringe, wherein temperature is constant at 70 DEG C in drying box drying course, drying time
15min, being tested toner dosage is 250mg, and pressure setting range is 20MMPa, and the tabletting duration is 25s.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Claim should not be construed as limiting the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of test method of water-absorbing resin monomer residue, it is characterised in that include the following steps:
S1: tested resin is crushed through pulverizer, ground machine is screened after carrying out grinding refinement by sieve, is placed in dry
Dry case is dried for standby；
S2: it takes step S1 to screen resulting tested toner in standard IR tabletting die cavity, is placed in tablet press machine and is pressed
Piece；
S3: the taking-up of press sheet compression obtained by step S2 is placed on the platen of dynamic contact angle analyzer, is surveyed using static contact angle
Amount method carries out dynamic image record to tabletting, measures drop since touching press sheet compression to press sheet compression degrees of expansion
Time t until unchanged, so that it is determined that rate of water absorption, and by the sampling knob of dynamic contact angle analyzer extract drop or
Drop is extruded with micro syringe.
2. a kind of test method of water-absorbing resin monomer residue according to claim 1, it is characterised in that: drying box drying
Temperature is constant at 70-110 DEG C in the process, drying time 15-45min.
3. a kind of test method of water-absorbing resin monomer residue according to claim 1, it is characterised in that: described tested
Toner dosage is 250-300mg, and pressure setting range is 20MPa-30MPa, and the tabletting duration is 25-40s.
4. a kind of test method of water-absorbing resin monomer residue according to claim 1, it is characterised in that: described quantifies
Drop is distilled water or sodium chloride solution, 0.6 μ of μ L~30 L of size of drop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464092.7A CN110487678A (en) | 2018-05-15 | 2018-05-15 | A kind of test method of water-absorbing resin monomer residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464092.7A CN110487678A (en) | 2018-05-15 | 2018-05-15 | A kind of test method of water-absorbing resin monomer residue |
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| Publication Number | Publication Date |
|---|---|
| CN110487678A true CN110487678A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810464092.7A Pending CN110487678A (en) | 2018-05-15 | 2018-05-15 | A kind of test method of water-absorbing resin monomer residue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI814492B (en) * | 2021-08-12 | 2023-09-01 | 日商Ｓｕｍｃｏ股份有限公司 | Method for measuring contact angle of silicon wafer and method for evaluating surface condition of silicon wafer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487300A (en) * | 2013-08-14 | 2014-01-01 | 武汉工程大学 | Testing method for water absorption rate of super absorbent resin |
-
2018
- 2018-05-15 CN CN201810464092.7A patent/CN110487678A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487300A (en) * | 2013-08-14 | 2014-01-01 | 武汉工程大学 | Testing method for water absorption rate of super absorbent resin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI814492B (en) * | 2021-08-12 | 2023-09-01 | 日商Ｓｕｍｃｏ股份有限公司 | Method for measuring contact angle of silicon wafer and method for evaluating surface condition of silicon wafer |
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Application publication date: 20191122 |