pes membrane chemical resistance
In this … PES membrane, the GO that has been modified by pluronic F127 and PA was added into the membrane. w�%�0�M�I�8�t�����&Fm)�l����4��9�gLHq��~KIFQ�����gኻRn@���ڕ���p���X�m=r�1�Ʉq*7^JgP)A��Вe�%S����ٛ7t���M����]}�/�Q��)������?L�Q6�'D���^��f*
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Q�Fo:M&:x:!ˍs錞��U���c��t�5�.���1i�%���/�kU�3��ڼ�4ES�y����v�h�7�jg�����C���k`=�m٪2�:Y��IzRW��Q�uz��E�140C�I�Z,��t�X�r^�I.�UQ����b��S`���� Applications of pes microfiltration membrane . DO USE: for aggressive filtration applications and solvents such as butyl … document-taxonomy:brochures-and-catalogs/specification-sheets 44 0 obj In addition, please note that SUMIKAEXCEL PES does dissolve in highly polar solvents such as dimethylsulfoxide (DMSO), aromatic amines, … No visible indication of chemical attack was detected. Better chemical resistance than cellulose acetate Membrane disc filters for low protein binding and low extraction rate Excellent heat resistance and strong acid and alkaline resistance. 75 0 obj endobj <>stream
Cellulose fibrils are composed of micro-sized and nano-sized elements, which have high hydrophilicity, strength, and biodegradation. 524 0 obj
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h�ԘYo�8�� 55 0 obj When should you use it? The PES/PC blend leads to materials with good flow properties and have same mechanical performance as neat PES. 39 0 obj Since actual chemical resistance depends on many variables, such as temperature, pressure and length of exposure, you may want to test under your own conditions. It is recommended to test under your own conditions. endobj SUMIKAEXCEL PES has outstanding chemical resistances among most amorphous polymers. The probably due to the intrinsic property of the small peak observed at 2490 cm!1 of fouled membrane itself. Contact time: 24 hours at 20 °C. endstream
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Removal rating includes 0.1, 0.22, and 0.45 um. They have a high dimensional stability, the size change when exposed to boiling water or 150 °C air or steam generally falls below 0.1%. All the membranes were cast with 18 wt% polymer solution.The results showed that as the solvent evaporation time increases, the membrane DIW permeation decreases, … The membrane resistance was about 56% of the total resistance was which was β-CD powder and fouled PES membrane. The following codes are used to rate chemical resistance: R = Recommended. The glass transition temperature of polysulfones is between 190 and 230 °C. �6=���g��s�8� ���AaG��E����/t�B��b�a�NH����d5��\���N~ O&c���]�;g��j�.2���`達�nYN���䠲��Sܳt�%[i� ��xU endobj Legend Compatible ++ Limited compatibility + Not compatible - not analyized n.a. U�f]6�Fh�n����ӦX.���vYF'M���X�.�����}S��g�)-��������7��^/�q�Y���z��k7Y�#�����J�s�r�>Eǜ��n35.&�Kp1��m�� �@�{��uZ��P�}�c����� ��\pb�p�eP���W� �ͣ��:H�c���˝�P�v������9��u��iל���f`���tO�?_������mɖ)?��i��Y�p��V�z�+R��a%轷�A��Q�@8Z�R�Nu�L�9���a�:�AhC�Y -kl��Re�1l�~[�VdrD}��bX���mz�5�_��f@`��iX��?w5f]� Major Advantages ... Chemical Compatibility Acids • Acetic acid - glacial: Resistant • Acetic acid - 10%: Resistant • Acetic acid - 30%: Resistant • Acetic acid - 90%: Resistant • Hydrochloric acid - conc. 539 0 obj
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Compared to PES membranes, PVDF membranes are characterized by a better permeability and an advanced pore distribution as well as higher chemical and mechanical resistance. endobj 0
These four folding filter cartridges have excellent chemical compatibility, suitable for filtering strong acid, strong alkali and organic solvent, large membrane filtration area, low pressure difference, strong dirt holding capacity and more effective application life. If the membrane dissolved, or otherwise lost its strength, or changed significantly in appearance, it was rated incompatible with the liquid. <> %%EOF
If there was no significant change in the bubble point, strength or appearance of the membrane, it was judged compatible with the chemical. �����Y���RXVr%�3��f�b��z�u.�YN��P��&�@���AJn'c�U��Z �2�
<> resistance (elongation) 30% 40-50% 120% Membrane costs Flux performance (clean water) 500 1000 700 Pore size distribution (selectivity) / size adjustability / / / good excellent Chemical resistance (NaOH) pH 9 pH 13 pH 11 Mech. 64 0 obj This chemical resistance information is intended as a general guide only. [43 0 R] PES Membrane Separation By Hiroyasu Yamauchi Specifying the engineering for thermoplastic polyethersulfone for separation membranes D ... formance and broad chemical resistance. U = Unknown. endobj H�tRmLSgn)�VeL�^��kV�)8�d��*bb�|�Q�k�RZ�m�(NĠ0>\h�b��2g�0:nLR`�٦s[ⲈɆ..$;O���K�o�ɹ����$�J����wg��^���j9o6ernN������U^�E�T�����L��/�������2_tHK�$����I���z��V�؍I���$&ſ��bYm|��M�8*86���⪝l���j���Y6�)6k����srBm��?N,�dM�K0Y�j�P�:��;���*8�� �N�m��69͕����)�bY�c���|-g�gm���;9�nk%���W}
G� endobj PES also provides stress-crack and broad chemical resistance, particularly for an amorphous thermoplastic. DIA-Nielsen - Chemical Compatibility for Filter Membranes / Housings Chemicals ACIDS Nylon (PA) PTFE PVDF CA RC PP PC PET CME CN PES l a C i C C N C c CCCCCD C N a N l G , c i t e c A Acetic, 25% NC C C NC NC C C C LC LC C Hydrochloric, concentrated NC C C NC NC C C NC NC NC C <> 80 0 obj H������4�b``������g� ��
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<> Since actual chemical resistance depends on many variables, such as temperature, pressure and length of exposure, you may want to test under your own conditions. Therefore, higher volume of permeate could be attained using PES membrane [12]. Also, PES is less tolerant to chlorine but more resistance to NaOCl. 6 0 obj 61 0 obj Therefore, we recommend that yo u confirm compatibility with the liquid you want to filter by performing a trial filtration run before you start your actual filtration. 2013-06-05T14:40:16-04:00 <> Microporous membrane made of ether sulfone, which is a hydrophilic membrane, has a high flow rate, low dissolution, good strength, does not adsorb protein and extracts, with no pollution to samples. PES (Polyethersulphone), a high performance thermoplastic. Resistance to forward and reverse pressure shocks. Hardware uuid:97265bbb-d75d-402b-894d-20e19120cf68 endobj Très forte résistance mécanique de la membrane permettant … 73 0 obj membrane manufacturing. Polysulfone is highly resistant to mineral acids, alkali, and electrolytes, in pHranging from 2 to 13. ALKALIS Nylon (PA) PTFE PVDF CA RC PP PC PET CME CN PES Ammonium Hydroxide, 25% C C LC C LC C NC LC LC NC C Sodium Hydroxide, 3 Normal C C C NC LC C NC LC NC NC C ALCOHOLS Nylon (PA) PTFE PVDF CA RC PP PC PET CME CN PES Methanol, 98% C CCCCCCC NC NC C Ethanol, 98% C CCCCCCC NC NC C Ethanol, 70% LC C C LC CCCC NC NC C Isopropanol, n-Propanol C CCCCC LC CCCC Très forte résistance mécanique de la membrane permettant … uuid:22efc9b2-6106-4374-a0de-263e0849c299 It has acid and alkali tolerance over a … %PDF-1.6
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The material is resistant to hot water (to 160°C), to both strong and weak acids and bases, and to aromatic hydrocarbons like gasoline, ethanol, oil, and grease. endobj The second important factor that affects the membrane preparation and performance is the solvent evaporation time. The addition of APTS-GO nanofillers also resulted in lowering R ir fouling resistance and higher FRR compared to pure PES membranes. 2013-06-05T15:46:39-04:00 endobj h�b``�e``�e```4x̀ <> Water Filtration Membranes made from Kynar® PVDF offer extreme chemical resistance and high strength retention. The PES filter membrane has an asymmetric structure with characteristics of high flow rate, high flux, high strength and high temperature resistance. Regenerated cellulose (RC) membranes are hydrophilic and have very good chemical resistance to solvents, including DMSO. V_AZ�E�=L�,\�A�{ZEdhaа������8�`��y8.Zzn��ƕq����w��LjZ�9��ޠ�h9=��}����L���Pi�^�=�M��_S��*�� �m�ڼQrz�s�
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��Nc�����L�]��? PES is one of the most common materials used in the fabrication of the hemodialysis membrane due to its thermal stability, mechanical strength, and chemical resistance [13,14]. The chemical resistance of PES has been investigated and a summary of the resistance of PES to various chemicals is provided (on the back page). endobj They are used to ultraclean and de-gas solvents and mobile … <> endstream
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Certaines de ces membranes sont employées pour le lavage et la purification de DNA. NR = Not Recommended. It is resistant to oxidizing agents (alth… The filter may be suitable for short term, non-critical use. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]>> for membrane manufacture. This chemical resistance information is intended as a general guide only. 09b3a2ed71ed4518ba5084bb4b381381e35ede05 11 0 obj The Supor® membrane is a polyethersulfone (PES), low-protein-binding membrane used in filtration. Polyethersulfone (PES) membranes are recommended for filtering cell culture media. PES membrane filter does not adsorb proteins and extracts and does not pollute the sample. PES also provides stress-crack and broad chemical resistance, particularly for an amorphous thermoplastic. PES membranes are widely employed in biomedical fields and 1modified by the polymer Poly vinyl pyrrolidone (PVP) as a hydrophilic additive. <> Membrane Filter Chemical Compatibility Chart Use the information in this table to determine the ability of a specific membrane filter to withstand exposure to a solvent. Chemical Resistance of Various Polymers Used in Membrane Manufacturing Figure 1: Nylon (PA 6,6) Membrane after Exposure to Chlorine and Sodium Hypochlorite Introduction In today’s demand for purer water, industry is forced to use more aggressive chemicals and techniques to treat water from various sources to make it useable. Although PES has good thermal stability, superior pH characteristics, chlorine tolerance, and excellent chemical resistance, the hydrophobic nature of PES makes the membrane susceptible to fouling because of the adsorption of nonpolar solutes, hydrophobic particles, and bacteria. application/pdf Of all the polyarylsulfones (PSU, PESU, PPSU), PESU has the highest values of temperature resistance and tensile modulus in elasticity. membranes, which has good chemical resistance, high mechanical properties, and wide temperature tolerances. (35%): Resistant 2013-06-05T14:45:51-04:00 Its stiffness and stability are high, and its notch sensitivity is low. The main disadvantage of the PES is related to the hydrophobicity character of it which has restricted its usage in separation PESU properties are similar to those of PSU, although it exhibits a higher impact strength and better chemical resistance. 2013-06-05T15:46:39-04:00 In this procedure, PES chains are first activated by chemical reaction, followed by the grafting with hydrophilic additives. Filterware/Chemical Resistance for Membranes and Housings Membranes Housings Chemicals C.N. endobj null However, precautions must be observed in accordance with conditions of actual usage, as some organic chemicals such as ketones and esters may cause stress cracking. Furthermore, depending upon conditions of actual usage, SUMIKAEXCEL PES is … 70 0 obj Filterware/Chemical Resistance for Membranes and Housings Guide Fluorocarbon (F) Polyester (P) PES also demonstrates faster flow rates than cellulosic or nylon membranes. 58 0 obj endobj )�z[��tw��'��"^��8 �� K;M��5�����>��%�Z!i���Z������Cd�GP�[! Filterware/Chemical Resistance for Membranes and Housings Membranes Housings Chemicals C.N. PES also provides stress-crack and broad chemical resistance, particularly for an amorphous thermoplastic. Despite these desirable properties, PES has disadvantages. <>stream
76 0 obj Polycyclic aromatic hydrocarbons (PAHs) are persistent and widespread in the aquatic environment, causing potential hazards for human health. <> Filterware/Chemical Resistance for Membranes and Housings Guide, document-taxonomy:brochures-and-catalogs/specification-sheets. <> * C.A./SFCA GFP NYL aPES/PES PTFE PVDF HDPE PS PSF ACR PP Acids Acetic acid, 25 % S M M M S S S S M M M S Acetic acid, 100% (glacial) U U M M M S S S U U U S Formic acid, 25% S M S U S S S S U M M S Formic acid, 100% M U S U M S S S U U U S The material is resistant to hot water (to 160°C), to both strong and weak acids and bases, and to aromatic hydrocarbons like gasoline, ethanol, oil, and grease.