• Sodium Polyacrylate China Hygienic Grade SAP

    Residual Monomer As AA (PPM) ≤300 ≤300 ≤300: Moisture Content (%) ≤60 ≤60 ≤60: Absorption under Pressure (03psi) ≥19 ≥28 ≥29: Absorption under Pressure (07psi) / ≥14 ≥18: Advantage: Absorption Ability in Blood: Absorption and Retention Capacity: Absorption under Pressure: Main Application: Sanitary towel, Nursing Pad

  • Optimized HPLC determination of residual monomer in

    · In hygienic SAPs, where the residual monomer content is of very significant importance, the allowed safe level of the residual acrylic acid has dropped from over 1000 ppm to less than 300 ppm during the two past decades So, either a synthetic chemist or a commercial manufacturer needs to practically quantify the residual monomer of the SAP products In the present communication, an

  • Cited by: 34
  • Super Absorbent Polymer For Hygiene Products

    Sodium polyacrylate, also known a waterlock, is a sodium salt of polyacrylic acid It has the ability to absorb as much as 200 to 300 times its mass in water It can be mainly divided into three major categories which are Hygiene grade, Agriculture grade and Industry grade The main uses of SAP are absorbing, retaining or to block liquid

  • (PDF) Superabsorbent Polymer Materials: A Review

    ing capacity, sol fraction, residual monomer, and ionic sensitivity were discussed The SAP applications and the related research works, p articularly the hygienic and agricul

  • Residual monomer in superabsorbent polymers: Effects of

    Minimized residual monomer is an essential requirement particularly in hygienic, pharmaceutical, and food packaging polymer products such as superabsorbent polymers (SAPs) The present article is the

  • Cited by: 11
  • Sodium polyacrylate Wikipedia

    Sodium polyacrylate, also known as waterlock, is a sodium salt of polyacrylic acid with the chemical formula [−CH 2 −CH(CO 2 Na)−] n and has broad applications in consumer products This superabsorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water Sodium polyacrylate is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain

  • Sodium polyacrylate Wikipedia

    Sodium polyacrylate, also known as waterlock, is a sodium salt of polyacrylic acid with the chemical formula [−CH 2 −CH(CO 2 Na)−] n and has broad applications in consumer products This superabsorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water Sodium polyacrylate is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain

  • Granules Super Absorbent Polymer (SAP), Grade

    Residual Monomer : Less than 300 ppm : Flowability : Less than 25 sec : Minimum Order Quantity : 20 Kg : Product Description SAP is a highly water absorbent polymer which is a crosslinked poly (sodium acrylate)SAP can absorb 5001,000 times its weight in water and 5070 times in synthetic urine; it is essentially water insolubleSAP absorbs water quickly and once swelled in water, it

  • Techniques for reducing residual monomer content in

    · Time Parts of Water ([degrees]C) (h) ([degrees]C) (h) sodium hydrogen 120 2 sulfite 5/300 sodium hydrogen 200 1 90 2 sulfite 1/120 sodium thiosulfate 110 10 2/20 sodium thiosulfate 150 1 150 3 1/1900 sodium thiosulfate 180 5 100 3 2/20 sodium dialkyl 200 10 80 3 sulfoccinate 1/200 monoethanol amine 140 (e) 05 100 3 1/70 (d) sodium sulfite 180 10 80 3 1/120 (f) Residual monomer

  • (PDF) Techniques for reducing residual monomer

    less ; Download Free PDF Download Free PDF Techniques for reducing residual monomer content in polymers: A review Polymer Engineering & Science, 2002 Claudia Sayer Download PDF Download Full PDF Package This paper A short summary of this paper 37 Full PDFs related to this paper READ PAPER Techniques for reducing residual monomer content in polymers: A review Download

  • agricultural sodium polyacrylate polymer, agricultural

    Potassium / sodium polyacrylate for agriculture super absorbent polymer / SAP specification: No Test item unit Company standard Test result 1 Appearance White granule White granule 2 Absorption in 09% Nacl g/g ≥ 55 60 3 Retention Capacity after centrifugation g/g ≥ 30 30 4 Residual Monomer ( As AA ) PPM ≤ 300 300 5 Moisture Content %,m/m ≤ 60 60 6

  • resin selection guide for corrosion resistance

    Derakane™ 441400 resins are low styrene monomer bisphenolA epoxy vinyl ester resins with mechanical, thermal and chemical resistance properties between Derakane ™ 411 and Derakane 470 resins Their unique combination of high HDT and elongation makes them the resins of choice for applications with thermal cycling, eg, for chemical reaction vessels Derakane™ 451400 resin is a

  • Eshmuno CP‑FT Resin EMD Millipore

    both the mAb monomer product and the mAb aggregates will initially bind to the Eshmuno® CPFT resin The resin has a novel CEX tentacle surface chemistry (Figure 1) that facilitates displacement of the bound monomer by the larger aggregates enabling efficient removal of aggregates using a frontal chromatography mechanism The example in Figure 2 demonstrates the efficient removal of

  • Japanese Sumitomo Super Absorbent Polymer Sap Buy

    2) SAP for Lady Sanitary Napkin SAP for sanitary napkin has fast suction of blood, high absorption capacity, good gel strength and moisture resistance According advanced production technology, SAP is nontoxic, no smell and no stimulation to skin The strong absorption capacity and water retention ability in women`s sanitary napkin can keep

  • Copolymeric resin binder powders Rohm GmbH

    By spray drying as in Example 1 B, the resin is obtained as a fine white powder with a residual monomer content of less than 001% bw EXAMPLE 4 04 g of ammonium peroxy disulfate, 04 g of sodium paraffin (C 15) sulfonate, and 80 g of itaconic acid are dissolved in 775 g of water at 80° C 120 g of methyl methacrylate are added dropwise within the next 4 hours with stirring Simultaneously

  • EN monomer | SigmaAldrich

    Search results for EN monomer at SigmaAldrich Compare Products: Select up to 4 products *Please select more than one item to compare

  • EPO T 2043/12 () of 2162016

    · It was found that the cause of the problem was oxidation of the compound added to the monomer as a stabilizer, the cause of the oxidation being a component of the initiator system (sodium persulphate), which was also added in order to reduce the content of residual monomer in the SAP Hence the problem was to provide a process which yielded colour stable SAPs with low monomer

  • Improving Aggregate Removal to Enhance Clinical

    the ratio of aggregate to monomer partition coefficients (Kp) as published by Kramarczyk et al (3) mAbA AEX pool was then loaded onto each column at 5 mg/mL of resin at a flow rate of 300 cm/hr To define optimal elution conductivity, a gradient elution over 10 column volumes (CV) was performed, at 300 cm/hr, starting with the highsalt

  • China Super Absorbent Polymer (SAP) 708 for Baby

    Sap, Super Absorbent Polymer, Sar manufacturer / supplier in China, offering Super Absorbent Polymer (SAP) 708 for Baby Diapers/Adult Diapers/Sanitary Napkins/Pet Pad, UV Absorber UV3638 with High UV Screening Efficiency, Light Stabilizer 292 in Coating Application and so on

  • China Sap (Sodium polyacrylate) for Adult

    Sap, Sap for Baby Napkin, Sap for Adult Diaper manufacturer / supplier in China, offering Sap (Sodium polyacrylate) for Adult Diaper and Baby Napkin, High Quality Industry Grade Sewage Treatment Chemicals Potassium Aluminum Sulfate, for Research/Education/Lab CAS 1 Cacl2 Anhydrous Calcium Chloride and so on

  • Preparation of highcapacity magnetic polystyrene

    · A novel polystyrene sulfonate sodium (PSS) magnetic material was prepared by surfaceinitiated atom transfer radical polymerization (SIATRP) The starting materials were brominated magnetic material as the carrier and macroinitiator, sodium styrene sulfonate (NaSS) as the monomer, and cuprous bromide/2,2′dipyridyl as the catalyst system The PSS material was characterized by Fourier

  • EN monomer | SigmaAldrich

    Search results for EN monomer at SigmaAldrich Compare Products: Select up to 4 products *Please select more than one item to compare

  • AP42, CH 662: Poly(ethylene Terephthalate)

    viscosity of less than 075, while highviscosity PET typically has an intrinsic viscosity of 09 or higher Lowviscosity resins, which are sometimes referred to as "staple" PET (when used in textile applications), are used in a wide variety of products, such as apparel fiber, bottles, and photographic film Highviscosity resins, sometimes referred to as "industrial" or "heavy denier" PET

  • monomer | SigmaAldrich

    Species Human (1427) , Species Mouse (12970) , Species Rat () , Species chicken () , Species cow () , Species domestic cat () , Species dog () , Species sheep () , Species Domestic Rabbit () , Species naked molerat () , Species domestic guinea pig ()

  • Opinion of the Scientific Panel on Food Additives a 4th

    data on residual content of the substance of the polymer, with a properly described method The substance is used as a comonomer for polyesters (polymeric additives, PET and PBT) It is used at up to 4 % in the final article (usually 1 %) and gives strong UV shielding properties No reaction nor degradation products in food are expected

  • China Sap, Sap Price From Sap Manufacturer/Supplier

    China Sap, Sap Price From Sap Manufacturer/Supplier, Find details about China Sap, Sap Price from Sap, Sap Price From Sap Manufacturer/Supplier Xilong Scientific Co, Ltd

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