CN202908943U - Moisture absorption product with high salt tolerance and high water absorption rate - Google Patents
Moisture absorption product with high salt tolerance and high water absorption rate Download PDFInfo
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- CN202908943U CN202908943U CN 201220399238 CN201220399238U CN202908943U CN 202908943 U CN202908943 U CN 202908943U CN 201220399238 CN201220399238 CN 201220399238 CN 201220399238 U CN201220399238 U CN 201220399238U CN 202908943 U CN202908943 U CN 202908943U
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- ion
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Abstract
The utility model discloses a moisture absorption product with high salt tolerance and high water absorption rate. The moisture absorption product comprises a liquid permeating surface layer, a flow guiding layer, a liquid non-permeating base layer and an absorbing core between the liquid permeating surface layer and the liquid non-permeating base layer. A hydrophilic polyurethane soft foam material layer with an ion exchanging function is arranged between the surface layer and the base layer. The density of a hydrophilic polyurethane soft foam material with the ion exchanging function is 0.01-0.12 g/cm3, mass fraction of ion exchanging resin is 0-60%, and ion exchanging volume is 0-6.0 mmlo/g. The moisture absorbing product comprises sanitary towels, paper diaper pants for babies, paper diapers for babies, paper diaper pants for adults, paper diapers for adults or pet pads. The ion exchanging resin is one or more than one of positive ion exchanging resin, negative ion exchanging resin and chelating ion exchanging resin. Water absorbing capacity of high water-absorbing resin in the absorbing core can be greatly improved, and salt tolerance and liquid permeating performance of the high water absorbing resin are improved.
Description
Technical field
This utility model relates to a kind of absorbent device, particularly a kind of absorbent device of the Hdyrophilic polyurethane flexible foams that contains ion exchanging function.
Background technology
The polyurethane full name is polyurethanes, is the general designation that contains the macromolecular compound of repetition carbamate groups (-NHCOO-) on main chain.It is to be formed by organic diisocyanate or polyisocyanates and dihydroxy or polyol addition polymerization, and this unit is formed by isocyanate group and hydroxyl reaction, and reaction equation is as follows:
—N=C=O?+?HO
—→?—NH-COO—。
the polyurethane flexible foam material, as a kind of novel high molecular synthetic material, mostly is open-celled structure, has certain elasticity and flexibility.Therefore, have that density is low, elastic recovery good, the performances such as sound-absorbing, ventilative, insulation, main as pad materials such as cushion material, mattress, the vehicles, medicated cushions, also soft bubble is used as to filtering material, deadener, packing, ornament materials, packaging material and heat-barrier material etc. on industrial and civilian, the soft polyurethane foam of perforate simultaneously has good sound absorption shock absorbing function, can be used as indoor deadener.
The patent No. is that the CN1095988 patent of invention discloses and usings drug powder or extract and join in polymer raw and carry out foaming as additive, has obtained the functional urethane foam plastics with some function.
The patent that application number is 200710009148.1 provides a kind of charcoal-containing polyurethane foam composite material, in the raw materials of these plastics, except preparing, the necessary foaming of polyurethane soft foamed plastics is former, auxiliary material, also add ultra-fine bamboo charcoal powder or charcoal powder, also add the compositions such as far-infrared powder, the mycopowder that disappears, silver ion powder, tea powder or Chinese herbal medicine powder simultaneously, give composite and there is the functions such as absorption harmful gas, disinfection, but this material is mainly used in daily living article
Such as medicated pillow, mattress or house decorative material etc.
The absorbent device that the patent of invention that application number is 200810176855.4 and 200810176856.9 discloses a kind of ion exchange fiber non-woven and applied it, this invention forms by dry non-woven cloth processes after being mixed in proportion by ion-exchange fibre and natural fiber, regenerated fiber, synthetic fibers.But the ion exchange fiber non-woven that this invention obtains is fast to excremental seepage velocity, the liquid storage ability is lower, so that the inorganic salt composition in Excreta is difficult to and non-ion-exchange fibre generation ion exchange in making cloth within the very short time, and the effect of actual ions exchange is less.
In view of the foregoing, the utility model discloses a kind of hydrophilic polyurethane flexible foams containing ion exchange material, and the polyurethane flexible foam material is applied in disposable sanitary articles as a kind of functional composite material.The hydrophilic polyurethane flexible foams has certain seepage velocity to body fluid, can effectively prevent the seepage of liquid, simultaneously, body fluid is had to physisorption and liquid storage effect, body fluid is the inorganic ion composition in people's urine particularly, can be from top to bottom and ion exchange resin generation ion exchange, the inorganic ion composition in the urine of decrease body fluid, particularly people.Therefore, a kind of hydrophilic polyurethane flexible foams containing ion exchange material has filtering function preferably to the inorganic ion composition in people's body fluid, and domestic and foreign literature yet there are no relevant report at present.
In hygienic article, the absorption carrier of body fluid is mainly born by super absorbent resin, and super absorbent resin is mainly polyacrylic acid (salt) class super absorbent resin, its in super absorbent resin market, the world in occupation of leading position, account for more than 80% of world SAP total output, formed through polymerisation in solution or suspension polymerization copolymerization by acrylic acid or its esters and monomer with two degrees of functionality.Yet, polyacrylic acid (salt) is although the class super absorbent resin has the advantages such as absorption speed is fast, water absorbent rate is high, good heat resistance than other synthetic class super absorbent resin, but polyacrylic acid (salt) class super absorbent resin belongs to polyelectrolyte, salt resistant character is poor, has a strong impact on its application performance.
Yet people's body fluid components complexity, as people's urine is mainly carbamide and various inorganic ion, as Cl
-, Na
+, K
+, SO
4 2-deng.Because High hydrophilous resin belongs to polyelectrolyte, various ion components all can produce common-ion effect to its water absorption course, therefore, these compositions all produce serious influence to the water absorbing capacity of super absorbent resin, the liquid absorbency rate that shows as High hydrophilous resin significantly descends, cause the absorbent properties decline of the absorptive core of hygienic article to urine, affect the serviceability of hygienic article, easily produce urine leakage in child's wearing process as hygienic article, simultaneously, the surface amount of bleeding back of hygienic article increases, the decline of dry and comfortable property, easily cause the erythema of child's skin etc.
In view of the urine inorganic ion composition of people's body fluid, particularly people to the having a strong impact on of super absorbent resin absorbent properties, a kind of polyurethane flexible foam material that ion in urine is there is to ion exchanging function of this utility model design.By the various inorganic salt compositions in ion exchange resin effect separation, elimination people's urine, increase substantially the water absorbing capacity of High hydrophilous resin in the hygienic article absorptive core, simultaneously, also improve salt resistant character and all night performance of water-absorbing resin.
Summary of the invention
The purpose of this utility model is the absorbent device that the high absorbency of a kind of high salt tolerant will be provided, and it is characterized in that described absorbent device contains the hydrophilic polyurethane flexible foams with ion exchanging function; The effect of the ion exchange material by the polyurethane flexible foam material, reach separation, eliminate the various inorganic salt compositions in people's urine, increase substantially water absorbing capacity and the salt resistant character of High hydrophilous resin in the absorptive core of absorbent device, reduce the use amount of High hydrophilous resin.
To achieve these goals, the technical solution adopted in the utility model is: described
the absorbent device of the high water absorbent rate of a kind of high salt tolerant, comprise the opaque liquid bottom, the surface layer of liquid permeability, guide layer, and be arranged at the absorptive core between liquid permeability surface layer and liquid-tight bottom, it is characterized in that: at absorptive core, be wrapped with the absorptive core integument; Contain the hydrophilic polyurethane flexible foams layer with ion exchanging function between described surface layer and bottom.
The absorbent device of the high water absorbent rate of described a kind of high salt tolerant is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer with ion exchanging function between described surface layer and guide layer.
The absorbent device of the high water absorbent rate of described a kind of high salt tolerant is characterized in that: described absorptive core consists of super absorbent resin and Time of Fluff Slurry mixture.
The absorbent device of the high water absorbent rate of described a kind of high salt tolerant is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer with ion exchanging function between guide layer and absorptive core integument.
The absorbent device of the high water absorbent rate of described a kind of high salt tolerant is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer with ion exchanging function between absorptive core and absorptive core integument
.
The absorbent device of the high water absorbent rate of described a kind of high salt tolerant, the application in sanitary towel, paper diaper for infant, the infant paper napkin, adult diaper, adult's paper napkin or pet pads.
Hydrophilic polyurethane flexible foams with ion exchanging function of the present utility model comprises that manufacture composition and engineering condition is as follows:
Take polyether polyol 100 as benchmark, and proportioning is as follows:
| Raw material | Formula | Raw material | Formula |
| Polyether polyol | 100 | Surfactant | 10-20 |
| Vulcabond | 45-65 | Antioxidant | 0.3 |
| Organotin | 0.25 | The silicon foam stabilizing agent | 1.0 |
| Organic amine | 0.20 | The Pentamethylene. foaming agent | 10-30 |
| Deionized water | 3.5-6.0 | Storng-acid cation exchange resin | 25-45 |
The hydrophilic polyurethane flexible foams has several, this utility model adopts polyether polyol and vulcabond polymerization and obtains, and in the hydrophilic polyurethane flexible foams filling ion-exchange resin, preparation technology is: at first, and after surfactant, ion exchange resin are added in polyether polyol solution and are uniformly mixed; Secondly, add successively foam stabiliser, antioxidant, deionized water mix homogeneously; Again, add catalyst, foaming agent, and fully stir; Finally, add vulcabond or polyisocyanates evenly to mix, send out in mould through addition polymerization, foaming and make and there is ion exchanging function and density is 0.01～0.12g/cm
3the polyurethane flexible foam material.
Described ion exchange resin is one or more of cation exchange resin, anion exchange resin, chelating ion exchange resin, and the interpolation mass fraction is 0-60%, and ion exchange capacity is 0-6.0mmol/g.The exchange base of cation exchange resin is acidic-group, its H
+the energy exchange cation, power according to cation exchange groups acidity, be divided into highly acid and weak-acid cation-exchange resin, wherein storng-acid cation exchange resin contains highly acid reactive group-SO3H, as strongly acidic styrene's type cation exchange resin, and weak-acid cation-exchange resin contains the faintly acid reactive group, as :-COOH ,-OH etc.; The exchange base of anion exchange resin is basic group, can exchange anion, be divided into strong basicity and weak-base anion-exchange resin, wherein, strong-base anion-exchange resin has alkaline reactive group, as-CH2N (CH3) 3+Cl-, weak-base anion-exchange resin has weakly alkaline reactive group, as-CH2NH3+Cl-,-CH2NH2 (CH3)+Cl-,-CH2NH (CH3) 2+Cl-; Chelating ion exchange resin can be used for the separation of yin, yang ion, and selectivity is good, as sequestration type styrene ion exchange resin etc.
Described absorbent device is any a kind of of sanitary towel, paper diaper for infant, the infant paper napkin, adult diaper, adult's paper napkin, pet pads, its absorptive core is that super absorbent resin and Time of Fluff Slurry mixture form, or the hydrophilic polyurethane flexible foams with ion exchange is set between surface layer and guide layer, or the hydrophilic polyurethane flexible foams with ion exchange is set between guide layer and absorptive core integument; Or the hydrophilic polyurethane flexible foams with ion exchange is set between absorptive core and absorptive core integument; Super absorbent resin mainly contains polyvinyl alcohol type, starch type, high absorptive resin in acrylic acid type, but be applicable to the high absorptive resin in acrylic acid type that is mainly as hygienic article Liquid Absorption carrier, and in the absorptive core of hygienic article, the addition of High hydrophilous resin is 6-12g, the addition of fluff pulp fibers is 0-15g, and they are evenly mixed in the absorptive core assembly drum.
The beneficial effect that technical solutions of the utility model realize: hygienic article is mainly used in absorbing people's urine composition, and main component is carbamide and various inorganic ion, as Cl
-, Na
+, K
+, SO
4 2-deng.Because High hydrophilous resin belongs to polyelectrolyte, various ion components all can produce common-ion effect to its water absorption course, therefore, these compositions all produce serious influence to the water absorbing capacity of super absorbent resin, the liquid absorbency rate that shows as High hydrophilous resin significantly descends, cause the absorbent properties decline of the absorptive core of hygienic article to urine, and contain hydrophilic polyurethane flexible foams absorbent device, can increase substantially the salt tolerance of High hydrophilous resin in absorptive core, absorb saline and all night sexuality, the use amount of High hydrophilous resin in energy decrease hygienic article, there is Social benefit and economic benefit preferably.
The accompanying drawing explanation
The structural representation that Fig. 1 is this utility model absorbent device.
The A-A profile that Fig. 2 is this utility model absorbent device.
In figure, 1 is bottom; 2 is surface layer; 3 is absorptive core; 4 is the hydrophilic polyurethane flexible foams layer with ion exchanging function; 5 is guide layer; 6 is the absorptive core integument.
The specific embodiment
For this utility model is done further to understand, now by embodiment, it is made to specific description, but design concept of the present utility model is not limited to this.
1, the general process of ion-exchange reactions:
Wherein, H represents the active group of ion exchange, and R represents the high molecular polymer of ion exchange resin, and M represents ion to be exchanged in solution.
(1) external diffusion: the ion in solution is diffused into the ion exchange resin surface;
(2) internal diffusion: ion to be exchanged is in the Ion Exchange Resin Phase diffusion inside;
(3) ion is exchanged;
(4) ion under exchanged, through film, be diffused in solution.
2, absorbent device absorbs the method for testing of 0.9% normal saline or artificial urine multiplying power
(1) required instrument: balance claims (being accurate to 0.01g); The large plastic tub of 20L; Stopwatch; Support; Clip.
(2) testing procedure:
(a) pour 0.9% normal saline or the artificial urine of 15L in large plastic tub;
(b) quality of accurate weighing absorbent device, be designated as W
1;
(c) absorbent device is soaked in normal saline or artificial urine fully, soak time is 30min;
(d) after 30min, absorbent device is stayed from liquid level, and be fixed on support with clip, after the 10min that naturally drips, the gross weight of weighing absorbent device, be designated as W
2;
(e) get 3 sample tests, average as test result, be accurate to 0.01.
(3) absorbent device absorbency computational methods:
At present, health industry super absorbent resin (SAP) used mainly contains IM-930, the IM-701H type SAP that three elegant companies produce, the AB60SX type SAP that Sumitomo company produces etc., the IM-930 type SAP that uses three elegant companies to produce in this utility model embodiment; And fluff pulp fibers mainly contains the NB480 type Time of Fluff Slurry that Weyerhaeuser produces, the NB480 type Time of Fluff Slurry of using Weyerhaeuser to produce in this utility model embodiment.
Adopt strongly acidic styrene's type cation exchange resin in this utility model example, stearic acid PVOH fat by 10 kilograms, the storng-acid cation exchange resin of 25 kilograms adds in the polyether triol of double centner and is uniformly mixed, secondly, the silicon foams stabilizing agent (commercially available prod silicone oil) that adds successively 1.0 kilograms, 0.3 two β (the 3-tert-butyl group-5-methyl-4-hydroxy phenyl) propanoic acid triethyleneglycol ester (antioxidant) of kilogram, 3.5 the deionized water of kilogram, and mix homogeneously, again, the organotin (dibutyl tin laurate) that adds 0.25 kilogram, 0.20 the organic amine (dimethylethanolamine) of kilogram, the Pentamethylene. foaming agent of 10 kilograms also fully stirs, finally, the vulcabond (being specially methyl diphenylene diisocyanate) that adds 55 kilograms, continue to stir and be placed on foaming in mould, and be cut into the specification of 400mm * 10mm * 2mm.
With the super suction of the peace happy board of youngster L
#diaper is example, this absorbent device basic structure from top to bottom is followed successively by surface layer 2, guide layer 5, absorptive core integument 6, absorptive core 3 and the opaque liquid bottom 1 etc. of liquid permeability, wherein absorptive core is evenly mixed and forms by the super absorbent resin of 10.5g and the fluff pulp fibers of 11.30g, the hydrophilic polyurethane flexible foams layer 4 that will have ion exchanging function is placed between described surface layer 2 and guide layer 5, obtains the absorbent device of the high water absorbent rate of a kind of high salt tolerant.The performance of described absorbent device absorption normal saline is as shown in the table.
Adopt alkalescence styrene type cation exchange resin in this utility model example, glyceryl monostearate by 12 kilograms, the alkalescence cation exchange resin of 30 kilograms adds in the polyether triol of double centner and is uniformly mixed, secondly, the silicon foams stabilizing agent (commercially available CGY-3) that adds successively 1.0 kilograms, 0.3 two β (the 3-tert-butyl group-5-methyl-4-hydroxy phenyl) propanoic acid triethyleneglycol ester (antioxidant) of kilogram, 4.5 the deionized water of kilogram, and mix homogeneously, again, the organotin (dibutyl tin laurate) that adds 0.25 kilogram, 0.20 the organic amine (triethanolamine) of kilogram, the Pentamethylene. foaming agent of 10 kilograms also fully stirs, finally, the vulcabond (being specially methyl diphenylene diisocyanate) that adds 50 kilograms, continue to stir and be placed on foaming in mould, and be cut into the specification of 400mm * 10mm * 2mm.
Blot refreshing L board wink with the mommy dotey
#diaper is example, this absorbent device basic structure from top to bottom is followed successively by surface layer 2, guide layer 5, absorptive core integument 6, absorptive core 3 and the opaque liquid bottom 1 etc. of liquid permeability, wherein absorptive core is evenly mixed and forms by the super absorbent resin of 10g and the fluff pulp fibers of 15g, the hydrophilic polyurethane flexible foams layer 4 that will have ion exchanging function is placed between described guide layer 5 and absorptive core integument 6, obtains the absorbent device of the high water absorbent rate of a kind of high salt tolerant.The performance of described absorbent device absorption normal saline is as shown in the table:
Embodiment 3
Adopt sequestration type ion exchange resin in this utility model example, add by the Brij30s of 15 kilograms, the sequestration type ion exchange resin of 28 kilograms in the polyether triol of double centner and be uniformly mixed, secondly, the commercially available silicon foams stabilizing agent that adds successively 1.0 kilograms
qBH, two β (the 3-tert-butyl group-5-methyl-4-hydroxy phenyl) propanoic acid triethyleneglycol ester (antioxidant) of 0.3 kilogram, the deionized water of 4 kilograms, and mix homogeneously, again, add the organotin (dibutyl tin laurate) of 0.25 kilogram, the organic amine (triethanolamine) of 0.20 kilogram, Pentamethylene. foaming agent the fully stirring of 12 kilograms, finally, add the vulcabond of 48 kilograms (to be specially 2, the 4-toluene di-isocyanate(TDI)), continuing to stir is placed on foaming in mould, and is cut into the specification of 400mm * 10mm * 2mm.
To help precious suitable superfine cotton gentle L
#diaper is example, this absorbent device basic structure from top to bottom is followed successively by guide layer 5, absorptive core integument 6, absorptive core 3 and the opaque liquid bottom 1 etc. of surface layer 2, non-weaving cloth and the scroll pile slurry of liquid permeability, wherein absorptive core is evenly mixed and forms by the super absorbent resin of 9.6g and the fluff pulp fibers of 10g, the hydrophilic polyurethane flexible foams layer 4 that will have ion exchanging function is placed between described absorptive core integument 6 and absorptive core 3, obtains the absorbent device of the high water absorbent rate of a kind of high salt tolerant.The performance of described absorbent device absorption normal saline is as shown in the table:
Claims (4)
1. the absorbent device of the high water absorbent rate of high salt tolerant, comprise opaque liquid bottom (1), the surface layer of liquid permeability (2), guide layer (5), and be arranged at the absorptive core (3) between liquid permeability surface layer (2) and liquid-tight bottom (1), it is characterized in that: at absorptive core (3), be wrapped with absorptive core integument (6); Contain the hydrophilic polyurethane flexible foams layer (4) with ion exchanging function between described surface layer (2) and bottom (1).
2. the absorbent device of the high water absorbent rate of a kind of high salt tolerant according to claim 1, is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer (4) with ion exchanging function between described surface layer (2) and guide layer (5).
3. the absorbent device of the high water absorbent rate of a kind of high salt tolerant according to claim 1 and 2, is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer with ion exchanging function between guide layer and absorptive core integument (6).
4. the absorbent device of the high water absorbent rate of a kind of high salt tolerant according to claim 1 and 2, is characterized in that: be provided with the hydrophilic polyurethane flexible foams layer (4) with ion exchanging function between absorptive core (3) and absorptive core integument (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399238 CN202908943U (en) | 2012-08-13 | 2012-08-13 | Moisture absorption product with high salt tolerance and high water absorption rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399238 CN202908943U (en) | 2012-08-13 | 2012-08-13 | Moisture absorption product with high salt tolerance and high water absorption rate |
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| Publication Number | Publication Date |
|---|---|
| CN202908943U true CN202908943U (en) | 2013-05-01 |
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| CN 201220399238 Expired - Fee Related CN202908943U (en) | 2012-08-13 | 2012-08-13 | Moisture absorption product with high salt tolerance and high water absorption rate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772961A (en) * | 2014-02-11 | 2014-05-07 | 太仓市晨洲塑业有限公司 | Formula for improved TPU (thermoplastic polyurethane) |
| JP7470594B2 (en) | 2020-07-29 | 2024-04-18 | 日本製紙クレシア株式会社 | Absorbent articles |
-
2012
- 2012-08-13 CN CN 201220399238 patent/CN202908943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772961A (en) * | 2014-02-11 | 2014-05-07 | 太仓市晨洲塑业有限公司 | Formula for improved TPU (thermoplastic polyurethane) |
| JP7470594B2 (en) | 2020-07-29 | 2024-04-18 | 日本製紙クレシア株式会社 | Absorbent articles |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20160813 |