Abstract: A fluoropolymer blend with high ionic conductivity that can be applied in electroactive polymer composite includes following components: PVDF-g-SPS (styrene-grafted and sulfonated PVDF); PVDF; and hydrocarbon- or fluoro-elastomer. PVDF-g-PS(styrene-grafted PVDF) ? PVDF and hydrocarbon- or fluoro-elastomer are mixed with specific proportion and being dissolved in an aprotic solvent?the solution is then cast film on a substrate followed by sulfonation to give the aforementioned compound membrane. The obtained compound membrane has excellent properties, such as thermal stability, acid-alkali resistance, good mechanical performance, excellent flexibility, and capability for processing appropriate cross-link for further enhancing the mechanical performance of this membrane.

Abstract: An electret and composite formed therewith. The electret includes a polymer, copolymerizing from monomers including VdF as a first monomer and HFP, CTFE, TFE, or combinations thereof as a second monomer.

Abstract: An ionic electroactive graft copolymer with a fluorine-containing backbone and a carbazole-containing side chain having the following repeating unit is disclosed: 1

Abstract: A fluoropolymer composite with high ionic conductivity that may be applied in electroactive polymer composite includes following components: PVDF-g-SPS; PVDF; and hydrocarbon- or fluoro-elastomer. After being mixed with specific proportion and being dissolved in an oily or non-oily solvent of non-proton or proton of high boiling point, the invention is coated on a substrate and is heated to get rid of the solvent afterwards to get a compound membrane. Then, a compound membrane of PVDF-g-SPS may be obtained by sulphonating the aforementioned compound membrane. The obtained compound membrane has excellent properties, such as thermal stability, acid-alkali resistance, good mechanical performance, excellent flexibility, and capability for processing appropriate cross-link for further enhancing the mechanical performance of this membrane.

Abstract: Disclosed is a gas injection mold structure for use in the field of gas auxiliary injection molding, comprising a male mold and a gas injection device. The gas injection device includes a head and a cylindrical body extending from the head. The male mold is formed with a cylindrical cell. The cylindrical body has an outer periphery and the cylindrical cell has an inner wall being formed with matching outer and internal threads, respectively, such that the gas injection device is removably threaded into and affixed to the cylindrical cell by means of the cylindrical body. The cylindrical body is formed with a plurality of vertical grooves along an entire length of sides thereof.

Abstract: An improved gas injection nozzle for use in gas-assisted injection molding process is disclosed. The improved gas injection nozzle comprises: (a) a nozzle body, and a nozzle cap fixedly connected to the nozzle body; (b) a gas inlet provided in the nozzle body so as to allow gas to be injected into a mold cavity via a gas channel formed inside both the nozzle body and the nozzle cap; (c) a heating coil provided on the gas injection nozzle; and (d) at least one circumferential groove formed on the outer surface of the nozzle cap. The circumferential groove formed on the outer surface of the nozzle cap preferably has the shape of a spiral groove, with a depth between about 0.2 mm and about 0.5 mm and a length between about 50 mm and about 150 mm. The combination of the heating coil and the circumferential groove prevents the formation of micro cracks that are often formed in the interstices between the nozzle cap and the sprue bushing during the cooling stage of injection molding process.