摘要:
The present invention provides a composite membrane comprising a porous base membrane and a polyamide coating disposed on said porous base membrane, said polyamide coating comprising a C3-C8 cyclic carbonyl compound and a C1-C8 amide compound, said amide compound comprising at least one N—H moiety. In addition the present invention provides a method of preparing a composite membrane comprising contacting under interfacial polymerization conditions an organic solution comprising a polyacid halide with an aqueous solution comprising a polyamine, said contacting being carried out on a surface of a porous base membrane, said organic solution further comprising a C3-C8 cyclic carbonyl compound, said aqueous solution comprising a C1-C8 amide compound, said amide compound comprising at least one N—H moiety.
摘要:
The present invention provides a composite membrane comprising a porous base membrane and a polyamide coating disposed on said porous base membrane, said polyamide coating comprising a C3-C8 cyclic carbonyl compound and a C1-C8 amide compound, said amide compound comprising at least one N—H moiety. In addition the present invention provides a method of preparing a composite membrane comprising contacting under interfacial polymerization conditions an organic solution comprising a polyacid halide with an aqueous solution comprising a polyamine, said contacting being carried out on a surface of a porous base membrane, said organic solution further comprising a C3-C8 cyclic carbonyl compound, said aqueous solution comprising a C1-C8 amide compound, said amide compound comprising at least one N—H moiety.
摘要:
The present invention provides a composite membrane comprising a porous base membrane and a polyamide coating disposed on said porous base membrane, said polyamide coating comprising a C3-C8 cyclic carbonyl compound and a C1-C8 amide compound, said amide compound comprising at least one N—H moiety. In addition the present invention provides a method of preparing a composite membrane comprising contacting under interfacial polymerization conditions an organic solution comprising a polyacid halide with an aqueous solution comprising a polyamine, said contacting being carried out on a surface of a porous base membrane, said organic solution further comprising a C3-C8 cyclic carbonyl compound, said aqueous solution comprising a C1-C8 amide compound, said amide compound comprising at least one N—H moiety.
摘要:
A membrane comprises: a porous base membrane; a polyol layer comprising polyols and a metalorganic compound; and a polyamide film layer sandwiched between the porous base membrane and the polyol layer. A method of making the membrane is also described.
摘要:
A membrane assembly is provided that includes a support comprising a micro-porous material; and an insoluble layer secured to a surface of the support. The insoluble layer is a reaction product of a reactant solution comprising a chain-capping reagent. A system and associated method are provided also.
摘要:
The present invention provides a method and apparatus for fabricating a separator assembly. The method comprises: providing a central core element comprising at least one concentrate exhaust conduit and at least one permeate exhaust conduit; disposing a first portion of a membrane stack assembly comprising a permeate carrier layer, a membrane layer, and a feed carrier layer within the central core element such that the concentrate exhaust conduit and permeate exhaust conduit are separated by the first portion of the membrane stack assembly; radially winding a second portion of the membrane stack assembly around the central core element; and sealing the wound assembly comprising two opposing end surfaces made of the membrane stack assembly by applying an adhesive on both end surfaces of the wound assembly; and applying a negative pressure inside the central core element so that the adhesive penetrates into the membrane stack assembly.
摘要:
The present invention provides a central core element a reverse osmosis separator assembly useful in the purification of fluids. The central core element comprises an outer exhaust conduit defining an inner volume and a gap starting at a first end thereof the outer exhaust conduit and extending towards a second end of the outer exhaust conduit, and an inner porous exhaust conduit comprising a first section disposed within the inner volume defined by outer exhaust conduit and a second section configured to abut and seal the first end of the outer exhaust conduit. The outer exhaust conduit is configured to accommodate a first portion of a membrane stack assembly within the inner volume and a second portion of the membrane stack assembly disposed as a multilayer membrane assembly on an outer surface of the outer exhaust conduit. The gap is configured to accommodate a transition section of the membrane stack assembly linking the first portion of the membrane stack assembly with the second portion of the membrane stack assembly. The first inner porous exhaust conduit section is configured to be disposed within the first portion of the membrane stack assembly.
摘要:
The present invention provides a method and apparatus for fabricating a separator assembly. The method comprises: providing a central core element comprising at least one concentrate exhaust conduit and at least one permeate exhaust conduit; disposing a first portion of a membrane stack assembly comprising a permeate carrier layer, a membrane layer, and a feed carrier layer within the central core element such that the concentrate exhaust conduit and permeate exhaust conduit are separated by the first portion of the membrane stack assembly; radially winding a second portion of the membrane stack assembly around the central core element; and sealing the wound assembly comprising two opposing end surfaces made of the membrane stack assembly by applying an adhesive on both end surfaces of the wound assembly; and applying a negative pressure inside the central core element so that the adhesive penetrates into the membrane stack assembly.
摘要:
A card edge connector assembly is provided with a first connector, a second connector and a printed circuit board (PCB). The first/second connector respectively comprises a first/second insulative housing with a plurality of first/second terminals mounted therein. The first/second insulative housing has a first/second upper wall, a first/second lower wall and a first/second mating cavity defined therebetween for receiving the first/second memory module therein. The PCB defines a first and a second solder regions at a top face thereof, on which the first and second terminals are respectively soldered. The first and second memory modules are respectively inserted into the first and second mating cavities along different directions so as to avoid interference between the memory modules during the assembling process.
摘要:
An electrical connector (1) for receiving an electrical card assembly (3) which having at least one first cable connecting member (31), includes an insulative housing (10), a plurality of contacts (11) received in the housing and at least one extending portion (4). The insulative housing defines a longitudinal main body (100) with a slot (101) extending along a longitudinal direction. The at least one extending portion is disposed at one end of the main body. The at least one extending portion is used for receiving and retaining a second cable connecting member therein to connect with the first cable connecting member.