摘要:
The present invention relates to a low-melting polyester resin, a method for preparing same, and a thermally adhesive polyester fiber prepared therefrom, and specifically, to a low-melting polyester resin having high transparency and remarkably low harmfulness to the human body, a method for preparing same, and a thermally adhesive polyester fiber prepared using same.
摘要:
A spiral wound-type separation membrane module and a method for manufacturing the same are provided. The spiral wound-type separation membrane module according to an exemplary embodiment of the present invention is implemented by including an outlet pipe; a filter assembly wound in a spiral wound on the outlet pipe; and an adhesion portion in which part or all of a head-adhesive yarn wound to surround the outer surface of the filter assembly in the longitudinal direction of the outlet pipe is melted and fixed to the filter assembly. According to the above, the spiral wound-type separation membrane module and the method for manufacturing the same can significantly reduce the defect rate and process time and simultaneously exhibit an eco-friendly effect during disposal after use.
摘要:
Provided are a monovalent anion selective ion exchange membrane and a method of manufacturing the ion exchange membrane. In regard to the monovalent anion selective ion exchange membrane, a surface portion thereof has a high amount ratio of a cation exchange polymer electrolyte, a central portion thereof has a high amount ratio of an anion exchange polymer electrolyte, and an amount ratio of the anion exchange polymer electrolyte with respect to the cation exchange polymer electrolyte continuously increases in the thickness direction thereof from the surface toward the center. Due to this structure, compared to monovalent anions, polyvalent anions may permeate much less through the exchange membrane. Thus, high selectivity for monovalent anions may be obtained.
摘要:
This disclosure provides polymer electrolytes for dye-sensitized solar cells and methods for manufacturing modules of dye-sensitized solar cells using the same, and more specifically to polymer electrolytes for dye-sensitized solar cells that can not only prevent electrolyte from leaking which is one of the worst drawbacks in conventional dye-sensitized solar cells using liquid electrolytes, but also exhibit a higher solar conversion efficiency compared with conventional polymer electrolytes and be applicable to a process for manufacturing dye-sensitized solar cells with a large surface area or flexible dye-sensitized solar cells, and methods for manufacturing modules of dye-sensitized solar cells using the same. The polymer electrolyte for a dye-sensitized solar cell in accordance with the present disclosure comprises a heat-curable epoxy resin, an imidazole-based curing accelerator, and metal salts, and a method for manufacturing a module of dye-sensitized solar cells using the polymer electrolyte for a dye-sensitized solar cell, is characterized by using the above polymer electrolyte for a dye-sensitized solar cell, wherein the polymer electrolyte for a dye-sensitized solar cell is used as an adhesive product between a working electrode and a counter electrode and a final form of bonding is maintained in a solid phase.
摘要:
The present invention generally relates to a high-efficiency light diffusing polymeric film and a manufacturing method thereof, and more specifically, to a high-efficiency light diffusing polymeric film which ensures a high level of light transmittance and light diffusion compatibly and which can be manufactured by a relatively simple method such as coating or extrusion, and a manufacturing method thereof. The high-efficiency light diffusing polymeric film of the present invention comprises a first polymer which is a light transmissible medium and a second polymer which forms light scattering particles, as two different immiscible polymers that have a small refractive index difference of 0.001 to 0.5, and the polymeric film comprises 30 to 70 parts by weight of the second polymer with respect to 100 parts by weight of the first polymer. The method for manufacturing a high-efficiency polymeric film is characterized in that the polymeric film is manufactured such that a first polymer forms a continuous phase and a second polymer forms a dispersed phase through coating or extrusion.
摘要:
The present invention relates to: a separation membrane with excellent fouling resistance which, by coating the surface of a support with a polymer solution including a hydrophobic polymer, a hydrophilic polymer, and a sulfonated polymer, has excellent fouling resistance and flow rate and no deterioration in exclusion rate performance; and a method for manufacturing same.
摘要:
A flame-retardant polyester decorative sheet according to one embodiment of the present invention comprises: a core layer comprising a polyester resin and a polyphosphonate; and a skin layer, which is positioned on at least one surface of the core layer and contains a polyester resin and a polyphosphonate, wherein the content of a color master batch in the skin layer is greater than that in the core layer, thereby solving a discoloration problem caused by a fire retardant agent while satisfying Flame Retardant Performance Standards of Notification No. 2019-2 of the National Fire Agency, and thus a flame-retardant polyester decorative sheet, which has a color tone deviation equal to that of a conventional decorative sheet product using no fire retardant agent, can be provided.
摘要:
The present invention relates to a polyester resin used for manufacturing a flame retardant fiber, and more specifically to a polyester resin which can be used for manufacturing a flame retardant fiber having not only flame retardancy but also excellent dyeability, with the introduction of a specific flame retardant material into a polyester compound polymerized to have the optimal composition and composition ratio.
摘要:
The present invention relates to a low-viscosity liquid epoxy resin composition and a pressure vessel manufactured using the same, and, more particularly, to a low-viscosity liquid epoxy resin composition, which has good workability due to low viscosity of the epoxy resin composition and exhibits both excellent elongation and an excellent glass transition temperature, and thus is applicable to pressure vessels for compressed natural gas and pressure vessels for compressed hydrogen gas, and a pressure vessel having excellent pressure-resistant characteristics manufactured using the same.