CN110702858A - Method for testing deodorization effect of super absorbent resin - Google Patents
Method for testing deodorization effect of super absorbent resin Download PDFInfo
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- CN110702858A CN110702858A CN201910998690.7A CN201910998690A CN110702858A CN 110702858 A CN110702858 A CN 110702858A CN 201910998690 A CN201910998690 A CN 201910998690A CN 110702858 A CN110702858 A CN 110702858A
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- Prior art keywords
- mercaptan
- sulfide
- solution
- absorbent resin
- super absorbent
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- 229920005989 resin Polymers 0.000 title claims abstract description 42
- 239000011347 resin Substances 0.000 title claims abstract description 42
- 239000002250 absorbent Substances 0.000 title claims abstract description 39
- 230000002745 absorbent Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000004332 deodorization Methods 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000011156 evaluation Methods 0.000 claims abstract description 10
- 230000001953 sensory effect Effects 0.000 claims abstract description 9
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 56
- 239000000243 solution Substances 0.000 claims description 53
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 42
- 210000002700 urine Anatomy 0.000 claims description 24
- 150000003568 thioethers Chemical class 0.000 claims description 21
- SUVIGLJNEAMWEG-UHFFFAOYSA-N propane-1-thiol Chemical compound CCCS SUVIGLJNEAMWEG-UHFFFAOYSA-N 0.000 claims description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 17
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 claims description 16
- QMMFVYPAHWMCMS-UHFFFAOYSA-N dimethyl monosulfide Natural products CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 claims description 16
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 16
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 claims description 12
- 230000015556 catabolic process Effects 0.000 claims description 11
- 238000006731 degradation reaction Methods 0.000 claims description 11
- 150000003573 thiols Chemical group 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- ZRKMQKLGEQPLNS-UHFFFAOYSA-N 1-Pentanethiol Chemical compound CCCCCS ZRKMQKLGEQPLNS-UHFFFAOYSA-N 0.000 claims description 8
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 claims description 8
- RMKCQUWJDRTEHE-UHFFFAOYSA-N Diallyltetrasulfane Chemical compound C=CCSSSSCC=C RMKCQUWJDRTEHE-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- WQOXQRCZOLPYPM-UHFFFAOYSA-N Dimethyl disulfide Natural products CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 claims description 8
- YWHLKYXPLRWGSE-UHFFFAOYSA-N Dimethyl trisulfide Chemical compound CSSSC YWHLKYXPLRWGSE-UHFFFAOYSA-N 0.000 claims description 8
- GUUVPOWQJOLRAS-UHFFFAOYSA-N Diphenyl disulfide Chemical compound C=1C=CC=CC=1SSC1=CC=CC=C1 GUUVPOWQJOLRAS-UHFFFAOYSA-N 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 8
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 8
- PFRGXCVKLLPLIP-UHFFFAOYSA-N diallyl disulfide Chemical compound C=CCSSCC=C PFRGXCVKLLPLIP-UHFFFAOYSA-N 0.000 claims description 8
- UBAXRAHSPKWNCX-UHFFFAOYSA-N diallyl trisulfide Chemical compound C=CCSSSCC=C UBAXRAHSPKWNCX-UHFFFAOYSA-N 0.000 claims description 8
- LJSQFQKUNVCTIA-UHFFFAOYSA-N diethyl sulfide Chemical compound CCSCC LJSQFQKUNVCTIA-UHFFFAOYSA-N 0.000 claims description 8
- HNKJADCVZUBCPG-UHFFFAOYSA-N thioanisole Chemical compound CSC1=CC=CC=C1 HNKJADCVZUBCPG-UHFFFAOYSA-N 0.000 claims description 8
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 150000001298 alcohols Chemical class 0.000 claims description 6
- 239000002781 deodorant agent Substances 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 210000003608 fece Anatomy 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 5
- SRZXCOWFGPICGA-UHFFFAOYSA-N 1,6-Hexanedithiol Chemical compound SCCCCCCS SRZXCOWFGPICGA-UHFFFAOYSA-N 0.000 claims description 4
- PGTWZHXOSWQKCY-UHFFFAOYSA-N 1,8-Octanedithiol Chemical compound SCCCCCCCCS PGTWZHXOSWQKCY-UHFFFAOYSA-N 0.000 claims description 4
- ZZTJMQPRKBNGNX-UHFFFAOYSA-N 1-nitro-4-(4-nitrophenyl)sulfanylbenzene Chemical compound C1=CC([N+](=O)[O-])=CC=C1SC1=CC=C([N+]([O-])=O)C=C1 ZZTJMQPRKBNGNX-UHFFFAOYSA-N 0.000 claims description 4
- 239000001754 3-prop-2-enyldisulfanyldisulfanylprop-1-ene Substances 0.000 claims description 4
- VWGKEVWFBOUAND-UHFFFAOYSA-N 4,4'-thiodiphenol Chemical compound C1=CC(O)=CC=C1SC1=CC=C(O)C=C1 VWGKEVWFBOUAND-UHFFFAOYSA-N 0.000 claims description 4
- VNFYMAPAENTMMO-UHFFFAOYSA-N 5-chloro-2-methylquinoline Chemical compound ClC1=CC=CC2=NC(C)=CC=C21 VNFYMAPAENTMMO-UHFFFAOYSA-N 0.000 claims description 4
- HTIRHQRTDBPHNZ-UHFFFAOYSA-N Dibutyl sulfide Chemical compound CCCCSCCCC HTIRHQRTDBPHNZ-UHFFFAOYSA-N 0.000 claims description 4
- ZERULLAPCVRMCO-UHFFFAOYSA-N Dipropyl sulfide Chemical compound CCCSCCC ZERULLAPCVRMCO-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- SNGRPWPVGSSZGV-UHFFFAOYSA-N Ethyl propyl disulfide Chemical compound CCCSSCC SNGRPWPVGSSZGV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 229940008075 allyl sulfide Drugs 0.000 claims description 4
- UENWRTRMUIOCKN-UHFFFAOYSA-N benzyl thiol Chemical compound SCC1=CC=CC=C1 UENWRTRMUIOCKN-UHFFFAOYSA-N 0.000 claims description 4
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 claims description 4
- 210000003756 cervix mucus Anatomy 0.000 claims description 4
- CETBSQOFQKLHHZ-UHFFFAOYSA-N diethyl disulphide Natural products CCSSCC CETBSQOFQKLHHZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- FQXWEKADCSXYOC-UHFFFAOYSA-N fipronil-sulfide Chemical compound NC1=C(SC(F)(F)F)C(C#N)=NN1C1=C(Cl)C=C(C(F)(F)F)C=C1Cl FQXWEKADCSXYOC-UHFFFAOYSA-N 0.000 claims description 4
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 4
- QJAOYSPHSNGHNC-UHFFFAOYSA-N octadecane-1-thiol Chemical compound CCCCCCCCCCCCCCCCCCS QJAOYSPHSNGHNC-UHFFFAOYSA-N 0.000 claims description 4
- KZCOBXFFBQJQHH-UHFFFAOYSA-N octane-1-thiol Chemical compound CCCCCCCCS KZCOBXFFBQJQHH-UHFFFAOYSA-N 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229920006295 polythiol Polymers 0.000 claims description 4
- ZJLMKPKYJBQJNH-UHFFFAOYSA-N propane-1,3-dithiol Chemical compound SCCCS ZJLMKPKYJBQJNH-UHFFFAOYSA-N 0.000 claims description 4
- 150000003464 sulfur compounds Chemical class 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 230000017854 proteolysis Effects 0.000 claims description 3
- ZJCZFAAXZODMQT-UHFFFAOYSA-N 2-methylpentadecane-2-thiol Chemical compound CCCCCCCCCCCCCC(C)(C)S ZJCZFAAXZODMQT-UHFFFAOYSA-N 0.000 claims description 2
- 102000004190 Enzymes Human genes 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 claims description 2
- CNILNQMBAHKMFS-UHFFFAOYSA-M Pyrithiobac-sodium Chemical compound [Na+].COC1=CC(OC)=NC(SC=2C(=C(Cl)C=CC=2)C([O-])=O)=N1 CNILNQMBAHKMFS-UHFFFAOYSA-M 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000002175 menstrual effect Effects 0.000 claims description 2
- 239000002504 physiological saline solution Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- RMVRSNDYEFQCLF-UHFFFAOYSA-N phenyl mercaptan Natural products SC1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-N 0.000 claims 2
- VYMPLPIFKRHAAC-UHFFFAOYSA-N 1,2-ethanedithiol Chemical compound SCCS VYMPLPIFKRHAAC-UHFFFAOYSA-N 0.000 claims 1
- OBMPJXWHIMIXSH-UHFFFAOYSA-N benzenethiol Chemical compound SC1=CC=CC=C1.SC1=CC=CC=C1 OBMPJXWHIMIXSH-UHFFFAOYSA-N 0.000 claims 1
- 235000019645 odor Nutrition 0.000 description 33
- 238000010998 test method Methods 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 230000035943 smell Effects 0.000 description 7
- -1 fatty acids (e.g. Chemical class 0.000 description 6
- 239000002674 ointment Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 210000004914 menses Anatomy 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- HCFAJYNVAYBARA-UHFFFAOYSA-N 4-heptanone Chemical compound CCCC(=O)CCC HCFAJYNVAYBARA-UHFFFAOYSA-N 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- ORTRWBYBJVGVQC-UHFFFAOYSA-N hexadecane-1-thiol Chemical compound CCCCCCCCCCCCCCCCS ORTRWBYBJVGVQC-UHFFFAOYSA-N 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 150000002830 nitrogen compounds Chemical class 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- XYHKNCXZYYTLRG-UHFFFAOYSA-N 1h-imidazole-2-carbaldehyde Chemical compound O=CC1=NC=CN1 XYHKNCXZYYTLRG-UHFFFAOYSA-N 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M 3-Methylbutanoic acid Natural products CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- 239000010963 304 stainless steel Substances 0.000 description 1
- 206010015150 Erythema Diseases 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N beta-methyl-butyric acid Natural products CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100000321 erythema Toxicity 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 235000019615 sensations Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- G01N33/0001—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 by organoleptic means
-
- 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
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/442—Resins; Plastics
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a method for testing deodorization effect of super absorbent resin, which comprises the following steps: step 1, placing super absorbent resin in a sealable vessel; step 2, adding odor substances into the vessel, and immediately sealing; step 3, placing the mixture in a constant temperature and humidity environment, and taking out the mixture after a certain time; step 4, the deodorizing effect of the super absorbent resin was tested using a standard sensory evaluation method. Has the advantages that: simple and easy to measure, strong in applicability and capable of reflecting deodorization effect in many aspects.
Description
Technical Field
The invention relates to the field of removing various peculiar smells, in particular to a method for testing the deodorization effect of super absorbent resin.
Background
Superabsorbent resins (SAP/Super Absorbent Polymer: superabsorbent Polymer) are water-swellable, water-insoluble, aqueous polymeric gelling agents that are widely used, such as in disposable diapers, sanitary napkins, pantiliners, incontinence pads, tampons, and the like, and are commonly used to absorb body fluids, such as urine, feces, vaginal secretions, and menses. The resulting odor can cause unpleasant sensations for the wearer and the handler of the absorbent article and can make the discreet use and/or handling of the absorbent article difficult. Therefore, in addition to excellent absorption capacity, absorption speed, liquid permeability, gel strength of swollen gel, and the like, the SAP used in the field of diapers and the like is required to have good antibacterial and deodorizing properties as well as prevention of erythema and irritation when skin comes into contact with urine.
The existing deodorization technology mainly comprises three types: physical adsorption (CN101050244A, CN 101143913A); odor masking (EP0591168A, CN 102585415A); and organisms which chemically react with malodorous substances and inhibit the production of microorganisms (WO2001089591A, CN 108192014A). Wherein CN108192014A can solve the original odor, remove the odor from the source, and has obvious deodorizing effect on ammonia gas, amine and thiol odor.
The existing deodorization test methods are various, and the panelists can score the deodorization effect (CN1852949B, CN100560638C, CN101821331B, CN100422267C and CN108192014A), so that the test method can enable the testers to intuitively feel the deodorization effect, is convenient and quick, but the existing test method has single odor source and single test mode, and cannot well meet the multi-directional requirements of laboratories, clients, consumers and the like, and the consumers are most eager to feel the intuitive use effect of the product;
the test method can quantify the deodorization degree through the amount of ammonia and can also enable a customer to convince the deodorization effect of a product through data by measuring the generation amount or the absorption amount of ammonia (CN100422267C, CN1349419A, CN1852949B and CN1325122C), but the method only aims at the product with the deodorization function of ammonia gas and has limitation on the removal of other odor sources. Some products can solve the odor from the source, namely the generation of the odor is inhibited when ammonia gas is not generated, so that the method has inadaptability;
the removal rate or residual quantity of hydrogen sulfide (CN101821331B, CN1852949B), this test method can also quantify the measurement, and similarly, it can only be used for the odor source which can generate hydrogen sulfide, therefore, it has its limitation.
The odor sources used by the testing methods are single, the testing modes are single, the testing process is carried out in a laboratory, and no good method is available for carrying out on-site display in front of clients and consumers, namely, a visual effect feeling cannot be provided for the consumers. The deodorizing effect of SAP cannot therefore be reflected from a variety of odor sources and a variety of test dimensions.
Therefore, it is necessary to provide a new method for testing the deodorizing effect of the super absorbent resin to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for testing the deodorization effect of super absorbent resin, which is simple and easy to test, has strong applicability and can reflect the deodorization effect in many aspects.
In order to achieve the purpose, the invention provides the following technical scheme: a method for testing the deodorization effect of a super absorbent resin comprises the following steps: step 1, placing super absorbent resin in a sealable vessel; step 2, adding odor substances into the vessel, and immediately sealing; step 3, placing the mixture in a constant temperature and humidity environment, and taking out the mixture after a certain time; step 4, the deodorizing effect of the super absorbent resin was tested using a standard sensory evaluation method.
Preferably, the odor substance is one or more of urine, feces, vaginal secretion, and menstrual fluid, which are mixed and have odor, or any one of amines, alcohols, and ethers which can emit odor.
Preferably, the odor substance is any one or more of fatty acid, sulfur-containing compound, ammonia, amine, ketone, alcohol and ether.
Preferably, the odorous substance is generated by putrefactive degradation, acidic degradation, protein degradation and fat degradation of any one or more of fatty acid, sulfur-containing compound, ammonia, amine, ketone, alcohol and ether which are contacted by microorganism and/or enzyme which generate odorous byproduct.
Preferably, the urine is fresh urine, fermented urine, or the odor is a thiol solution or a thioether solution.
Preferably, the laboratory preparation process of the thiol solution or thioether solution in the odorous solution is,
placing the physiological saline solution in a constant temperature water bath kettle at the temperature of 25-40 ℃ to keep constant temperature;
taking 0.01-0.03 g of mercaptan or thioether by using a syringe into a container of 500 ml;
adding normal saline at 25-40 deg.C into a container to 500 ml;
sealing, shaking, and placing in a constant temperature water bath kettle for 10-20 min to obtain mercaptan solution or thioether solution;
the mercaptan solution and the thioether solution are prepared into odor solution with the concentration of 1-10 parts per ten thousand in a laboratory.
Preferably, the thiol solution is selected from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, 1-propyl mercaptan, 1, 3-propanedithiol, n-pentyl mercaptan, 1, 2-ethylene glycol mercaptan, 1, 6-hexanedithiol, 1, 8-octanedithiol, dodecyl mercaptan, n-dodecyl mercaptan, ethylene glycol mercaptan, n-dodecyl mercaptan, hexadecyl mercaptan, octadecyl mercaptan, polythiol, methyl mercaptan, benzene mercaptan, tert-dodecyl mercaptan, octyl mercaptan, tert-dodecyl mercaptan, benzyl mercaptan, and more preferably from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, and n-pentyl mercaptan.
Preferably, the sulfide solution is selected from one or more of polyphenylene sulfide, anisole, disulfide, dimethyl disulfide, diethyl disulfide, dimethyl sulfide, dimethyl trisulfide, ethylpropyl disulfide, hydroxyethylsulfide, diphenyldisulfide, fipronil sulfide, ethylsulfide, dibutyl sulfide, hydroxyethylsulfide, pyrithiobac-sodium, methylphenyl sulfide, dichlorodiethyl sulfide, p-nitrophenyl sulfide, dipropyl sulfide, 4,4' -dihydroxydiphenyl sulfide, allyl sulfide, diallyl disulfide, diallyl trisulfide, diallyl tetrasulfide, and further preferably from one or more of disulfide, dimethyl sulfide, and ethylsulfide.
Compared with the prior art, the method for testing the deodorization effect of the super absorbent resin has the beneficial effects that: simple and easy to measure, strong in applicability and capable of reflecting deodorization effect in many aspects.
Detailed Description
The invention relates to a method for testing deodorization effect of super absorbent resin, which comprises the following steps:
step 1, placing less than 10g of super absorbent resin (polyacrylic acid series water absorbent resin) in a sealable vessel;
step 2, quickly adding a certain amount of odor substances into the vessel, and immediately sealing;
step 3, placing the mixture in a constant temperature and humidity environment, and taking out the mixture after a certain time;
step 4, the deodorizing effect of the super absorbent resin is tested by using a standard sensory evaluation method.
1. Laboratory vessel
The vessel is a special deodorization small box or a sample bottle, and the special deodorization small box or the sample bottle is a transparent ointment box or a headspace jaw sample bottle containing a sample feeding pad; the special deodorizing box is made of polystyrene and has a volume of 5-50 ml, preferably 10-30 ml.
The special sample bottle for deodorization is a headspace jaw sample bottle with a sample feeding pad, the volume of the sample bottle is 5-50 ml, preferably 10-30 ml, and a cap opening/closing device used for the sample bottle is a 304 stainless steel jaw cap opening/closing integrated device.
2. Odorous substance
Examples of the odorous substance used in the present invention include the following: urine, feces, vaginal secretions, menses, volatile compounds such as fatty acids (e.g., isovaleric acid), sulfur-containing compounds (e.g., mercaptans and sulfides), ammonia, amines (e.g., triethylamine), ketones (e.g., 4-heptanone), alcohols and alcohols (e.g., alcoids), ethers, malodorous substances produced via chemical reactions and/or fluid degradation mechanisms, such as putrefactive degradation, acidic degradation, protein degradation, fat degradation, and the like. Preferably urine, feces, menses, alcohols and alcohols (alcohol-like), ethers, most preferably fresh urine, fermented urine, thiol solutions, thioether solutions.
Other odor substances may be used, and the following may be mentioned: sulfur compounds, nitrogen compounds, halogens and compounds thereof, hydrocarbons, sulfur compounds, nitrogen compounds, oxygen compounds, halogen derivatives, and the like, which are generated from chemical plants, garbage disposal plants, sewage treatment plants, feed plants, fertilizer processing plants, livestock product farms, leather factories, pulp mills, and other industrial facilities.
Wherein the fresh urine in the odorous solution can be collected male urine in less than 6-12 h of 5-20 adults.
Wherein the fermented urine in the odor solution is a solution with higher odor grade obtained by placing fresh urine at 0-60 deg.C and 0-100 RH% for 5-24 h, preferably at 25-40 deg.C and 30-60 RH% for 10-20 h.
The mercaptan solution is selected from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, 1-propyl mercaptan, 1, 3-propanedithiol, n-pentyl mercaptan, 1, 2-ethylene glycol mercaptan, 1, 6-hexanedithiol, 1, 8-octanedithiol, dodecanethiol, n-dodecyl mercaptan, ethylene glycol mercaptan, n-dodecyl mercaptan, hexadecanethiol, octadecanol, octadecyl mercaptan, polythiol, methyl mercaptan, benzene mercaptan, tert-dodecyl mercaptan, octanethiol, tert-dodecyl mercaptan, benzyl mercaptan, and is preferably one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, and n-pentyl mercaptan.
The sulfide solution is selected from one or more of polyphenylene sulfide, anisole, disulfide, dimethyl disulfide, diethyl disulfide, dimethyl sulfide, dimethyl trisulfide, ethyl propyl disulfide, hydroxyethyl sulfide, diphenyl disulfide, fipronil sulfide, ethyl sulfide, dibutyl sulfide, hydroxyethyl sulfide, pyrithion, methyl phenyl sulfide, dichlorodiethyl sulfide, p-nitrophenyl sulfide, dipropyl sulfide, 4,4' -dihydroxy diphenyl sulfide, allyl sulfide, diallyl disulfide, diallyl trisulfide, diallyl tetrasulfide, and further preferably from one or more of disulfide, dimethyl sulfide, and ethyl sulfide.
The laboratory formulation of thiol and thioether solutions was carried out,
taking laboratory normal saline, and placing the laboratory normal saline in a constant-temperature water bath kettle at the temperature of 25-40 ℃ to keep constant temperature; taking 0.01-0.03 g of mercaptan or thioether from a disposable syringe into a 500ml conical flask; using normal saline with the temperature of 25-40 ℃ to fix the volume to 500 ml; sealing with preservative film, shaking, and placing in a constant temperature water bath kettle for 10-20 min to obtain mercaptan solution or thioether solution.
The solution of the mercaptan and the solution of the thioether in the odorous solution are laboratory prepared odorous solutions with the concentration of 1 to 10 ten thousandths, and the preferred concentration is 2 to 6 ten thousandths.
The mercaptan solution is selected from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, 1-propyl mercaptan, 1, 3-propanedithiol, n-pentyl mercaptan, 1, 2-ethylene glycol mercaptan, 1, 6-hexanedithiol, 1, 8-octanedithiol, dodecanethiol, n-dodecyl mercaptan, ethylene glycol mercaptan, n-dodecyl mercaptan, hexadecanethiol, octadecanol, octadecyl mercaptan, polythiol, methyl mercaptan, benzene mercaptan, tert-dodecyl mercaptan, octanethiol, tert-dodecyl mercaptan, benzyl mercaptan, and is preferably one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, and n-pentyl mercaptan.
The sulfide solution is selected from one or more of polyphenylene sulfide, anisole, disulfide, dimethyl disulfide, diethyl disulfide, dimethyl sulfide, dimethyl trisulfide, ethyl propyl disulfide, hydroxyethyl sulfide, diphenyl disulfide, fipronil sulfide, ethyl sulfide, dibutyl sulfide, hydroxyethyl sulfide, pyrithion, methyl phenyl sulfide, dichlorodiethyl sulfide, p-nitrophenyl sulfide, dipropyl sulfide, 4,4' -dihydroxy diphenyl sulfide, allyl sulfide, diallyl disulfide, diallyl trisulfide, diallyl tetrasulfide, and further preferably from one or more of disulfide, dimethyl sulfide, and ethyl sulfide.
The laboratory formulation of thiol and thioether solutions was carried out,
taking laboratory normal saline, and placing the laboratory normal saline in a constant-temperature water bath kettle at the temperature of 25-40 ℃ to keep constant temperature; taking 0.01-0.03 g of mercaptan or thioether from a disposable syringe into a 500ml conical flask; using normal saline with the temperature of 25-40 ℃ to fix the volume to 500 ml; sealing with preservative film, shaking, and placing in a constant temperature water bath kettle for 10-20 min to obtain mercaptan solution or thioether solution.
The solution of the mercaptan and the solution of the thioether in the odorous solution are laboratory prepared odorous solutions with the concentration of 1 to 10 ten thousandths, and the preferred concentration is 2 to 6 ten thousandths.
3. Conditions of experimental tests
The super absorbent resin used in the test method is a resin having a deodorizing function, wherein a deodorizing component is a key to eliminate various odors, and the deodorizing component has a weak volatility and a long retention time in the super absorbent resin.
The amount of the super absorbent resin is 0.1 to 10g, preferably 0.1 to 5g, and more preferably 0.1 to 2 g.
The constant temperature and humidity in the test method is 0-60 ℃ and 0-100 RH%, preferably 25-40 ℃ and 30-60 RH%.
The standing time in the test method is 0-24 h, preferably 30 min-12 h.
The sealing process in the test method does not need to be mixed evenly, so that the super absorbent resin can naturally absorb the odor solution, and the aim is to simulate the actual use condition of the super absorbent resin in the paper diaper.
The standard sensory evaluation method in the experiment was to score the deodorizing effect by smelling the inside of the cup at a distance of about 1-5 cm from the rim of the cup by 5-20 panelists. For scoring, panelists recorded the results of the sensory tests as per the odor definition criteria "grade 6 odor intensity expression method" and averaged the scores recorded. The odor of this standard was scored as a score of 5 on a scoring scale for the deodorizing effect.
5: strong odor
4: strong smell
3: smell easily smells
2: very light, but tolerable, odors
1: faint odor, the presence of which can be sensed
0: no odor
Each sample in the test method requires two parallel tests, the average value is used as the final evaluation result, and blank experiment comparison is required.
In the case of the example 1, the following examples are given,
the invention relates to a method for testing the deodorization effect of a super absorbent resin, which comprises the following steps:
putting 0.67g of super absorbent resin (polyacrylic acid series water absorbent resin) into a special transparent deodorant ointment box (confirming whether the special transparent deodorant ointment box has peculiar smell or not before the experiment and confirming that the special transparent deodorant ointment box has no peculiar smell);
quickly adding 20g of odorous solution into a beaker, immediately covering a sealing cover for sealing (uniformly mixing is not needed in the process, and the SAP can naturally absorb urine so as to simulate the actual use condition of the SAP in the paper diaper);
the resulting mixture was placed in a constant temperature and humidity chamber of 37 ℃ and 55 RH% and subjected to sensory evaluation 30min later.
The average value of the evaluation of five panelists is taken, and the fresh urine result is shown in Table 1
TABLE 1
Sample a is a super absorbent resin (SAP) having deodorizing function of the present invention, and sample b is a product having deodorizing function of the prior art (the same applies hereinafter). Parallel 1 parallel 2 refers to the number of experiments for one sample.
The results of the fermented urine are shown in Table 2
TABLE 2
Example 2, the invention is a method for testing the deodorization effect of a super absorbent resin, which comprises the following steps:
placing 0.67g of super absorbent resin (polyacrylic acid series water absorbent resin) in a sample bottle (containing a sample injection pad) special for deodorization, and performing gland sealing by using a gland device;
quickly injecting 20g of odor solution into the sample injection pad by using an injector, and immediately pulling out the injector;
placing in a constant temperature and humidity box with 37 deg.C and 55 RH%, after 30min, opening the cover of the nipper bottle with a cover opener, and performing sensory evaluation.
The results of the thiol solution are shown in Table 3
TABLE 3
The results of the thioether solutions are shown in Table 4
TABLE 4
Example 3, the invention is a method for testing the deodorization effect of a super absorbent resin, which comprises the following steps:
1.000g of super absorbent resin is put into a special transparent deodorant ointment box (whether the special transparent deodorant ointment box has peculiar smell is confirmed before the experiment);
quickly adding 25g of odorous solution into the paper diaper by using a beaker, immediately covering a sealing cover for sealing (note: the process does not need to be mixed evenly, and the SAP can naturally absorb urine, so as to simulate the actual use condition of the SAP in the paper diaper);
the resulting mixture was placed in a constant temperature and humidity chamber of 37 ℃ and 55 RH% and subjected to sensory evaluation 30min later.
The results of the fermented urine are shown in Table 5
TABLE 5
The results of the fermented urine are shown in Table 6
TABLE 6
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (8)
1. A method for testing the deodorization effect of a super absorbent resin is characterized by comprising the following steps:
step 1, placing super absorbent resin in a sealable vessel;
step 2, adding odor substances into the vessel, and immediately sealing;
step 3, placing the mixture in a constant temperature and humidity environment, and taking out the mixture after a certain time;
step 4, the deodorizing effect of the super absorbent resin was tested using a standard sensory evaluation method.
2. The method for testing the deodorizing effect of a super absorbent resin according to claim 1, wherein the odor substance is one or more of urine, feces, vaginal secretion, menstrual fluid, which are mixed with a substance having an offensive odor, or any one of amines, alcohols, and ethers which can emit an offensive odor.
3. The method for testing the deodorizing effect of a super absorbent resin according to claim 1, wherein the odorous substance is any one or more of a mixture of fatty acid, sulfur compound, ammonia, amine, ketone, alcohol and ether.
4. The method for testing the deodorizing effect of a super absorbent resin according to claim 3, wherein the odor substance is a substance resulting from putrefactive degradation, acidic degradation, protein degradation, and fat degradation by contacting with a microorganism and/or an enzyme that generates a byproduct of malodor by any one or more of mixed substance degradation mechanisms of fatty acid, sulfur compound, ammonia, amine, ketone, alcohol, and ether.
5. The method for testing the deodorizing effect of a super absorbent resin according to claim 2, wherein the urine is fresh urine, fermented urine, or the odor is thiol solution or thioether solution.
6. The method for testing the deodorizing effect of a superabsorbent resin according to claim 5, wherein the laboratory preparation process of the thiol solution or thioether solution in the odorous solution is,
placing the physiological saline solution in a constant temperature water bath kettle at the temperature of 25-40 ℃ to keep constant temperature;
taking 0.01-0.03 g of mercaptan or thioether by using a syringe into a container of 500 ml;
adding normal saline at 25-40 deg.C into a container to 500 ml;
sealing, shaking, and placing in a constant temperature water bath kettle for 10-20 min to obtain mercaptan solution or thioether solution;
the mercaptan solution and the thioether solution are prepared into odor solution with the concentration of 1-10 parts per ten thousand in a laboratory.
7. The method for testing the deodorizing effect of a superabsorbent resin according to claim 4, wherein the thiol solution is selected from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, 1-propyl mercaptan, 1, 3-propanedithiol, n-pentyl mercaptan, 1, 2-ethanedithiol, 1, 6-hexanedithiol, 1, 8-octanedithiol, dodecyl mercaptan, n-dodecyl mercaptan, ethylene glycol mercaptan, n-dodecyl mercaptan, hexadecyl mercaptan, octadecyl mercaptan, polythiol, methyl mercaptan, benzene thiol, tert-dodecyl mercaptan, octyl mercaptan, tert-dodecyl mercaptan, benzyl mercaptan, and further preferably from one or more of methyl mercaptan, ethyl mercaptan, propyl mercaptan, ethylene glycol mercaptan, n-butyl mercaptan, and n-pentyl mercaptan.
8. The method for testing deodorant effect of superabsorbent resin of claim 4, wherein the sulfide solution is selected from one or more of polyphenylene sulfide, anisole, disulfide, dimethyl disulfide, diethyl disulfide, dimethyl sulfide, dimethyl trisulfide, ethyl propyl disulfide, hydroxy ethyl sulfide, diphenyl disulfide, fipronil sulfide, ethyl sulfide, dibutyl sulfide, hydroxy ethyl sulfide, pyrithiobac-sodium, methyl phenyl sulfide, dichlorodiethyl sulfide, p-nitrophenyl sulfide, dipropyl sulfide, 4,4' -dihydroxy diphenyl sulfide, allyl sulfide, diallyl disulfide, diallyl trisulfide, diallyl tetrasulfide, further preferably from one or more of disulfide, dimethyl sulfide, and ethyl sulfide.
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