摘要:
A halogen-free resin composition and a method for preparation of copper clad laminate with the same, wherein based on total parts by weight of solid components, the halogen-free resin composition comprises a reactive allyl phenoxy cyclotriphosphazene or vinyl phenoxy cyclotriphosphazene of 5-50 parts, a thermosetting resin of 15-85 parts, a crosslinking curing agent of 1-35 parts, a crosslinking curing accelerant of 0-5 parts and a filler of 0-100 parts. In the present invention, the reactive allyl phenoxy cyclotriphosphazene or vinyl phenoxy cyclotriphosphazene having very low water absorption is introduced into the thermosetting resin, satisfying both the halogen-free and antiflaming requirements and improving the electrical properties of the system, and making it possible to prepare the halogen-free high-frequency high-speed substrate material. The resulted copper clad laminate satisfies the halogen-free requirement, and has advantages such as excellent resistance to heat and moisture, and low dielectric loss.
摘要:
The invention relates to a method for manufacturing a sheet from the pseudostem of the banana plant, including the steps of: cutting out a beam from a central portion of the pseudostem; cutting leaves from the beam; forming a sheet by assembling the leaves such that the latter overlap over a predetermined width; and pressing the resulting sheet.
摘要:
A method for manufacturing a cushioning element may include securing a plurality of pad components to pins that extend outward from a base, each of the pins having a non-circular short-axis cross-sectional shape. The pad components are then compressed between the base and a material layer to bond the pad components to the material layer. In some configurations, the pins may have an elongate short-axis cross- sectional shape. In some configurations, the pins may have an elliptical short-axis cross-sectional shape. Additionally, in some configurations, the pins may have a short- axis cross-sectional shape selected from triangular, square, rectangular, hexagonal, and semi-circular.
摘要:
A method of making RFID tags includes printing individualized information to a printable facestock on which an RFID device is attached. Generic information may be preprinted on the facestock before the RFID device is attached. The facestock may be folded over, putting the generic information and individualized information on different sides of the tag. The individualized information may be a function of information obtained by reading or interrogating the RFID device.
摘要:
A method for manufacturing the cushioning elements (200) may include utilizing a die (310) with a plurality of die elements (312) positioned in a particular arrangement. A polymer material, which may be a polymer foam material, is located between the die (310) and an extractor (320). The polymer material is compressed between the die (310) and the extractor (320), and the die elements (312) cut the polymer material to form a plurality of pad components (230), which are arranged like the die elements (312). The die (310) and the extractor (320) are separated, and the pad components (230) are secured to the extractor (320) in the arrangement of the die elements (312). Additionally, the pad components (230) are bonded to at least one material layer (210, 220) such that the pad components remain in the arrangement of the die elements.