Liquid crystal polyester resin molded article
A technology of resin molded body and liquid crystal polyester, applied in the field of liquid crystal polyester resin molded body, which can solve the problems of low mechanical properties
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Embodiment 1
[0276]
[0277] As described below, use figure 1 The production apparatus of the illustrated form obtains liquid crystal polyester resin particles 15 . As the extruder, a GTS-40 type extruder (manufactured by Plastic Engineering Laboratory Co., Ltd.) was used. As the belt take-up machine, EBD-1500A (manufactured by IMEX CO., LTD.) was used.
[0278] ・Process of obtaining a resin structure
[0279] By making the belt take-up machine (receiving unit 127) work at a take-up speed of 10 m / min, the carbon fiber (manufactured by Mitsubishi Chemical Corporation, Pyrofil) as the fiber bundle 11 is continuously sent out from the fiber roving 10 at a take-up speed of 10 m / min. (registered trademark) CF Tow, TR50S15L, PAN-based carbon fiber, tensile strength 4900 MPa, tensile elongation 2.1%, number average fiber diameter 7 μm), first, heated to 200 ° C in the preheating part 121 to make it dry.
[0280] In addition, the liquid crystal polyester 1 obtained in the above was heated to...
Embodiment 2～4
[0290] In Example 1, the same procedure as in Example 1 was performed except that 25 parts by mass of fibers 11 were changed to the respective compounding quantities shown in Table 1 by changing the hole diameter of the outlet of the mold (impregnation part 123). By operation, the liquid crystal polyester resin particles 15 of Examples 2 to 4 were obtained in a cylindrical shape (length: 12 mm). The length-weighted average fiber length of the fibrous filler (carbon fiber) was 12 mm (Examples 2 to 4).
[0291]
[0292] Using the liquid crystal polyester resin particles of Examples 2 to 4, it was carried out in the same manner as in Example 1 to produce a test piece without a notch having a width of 10 mm x a length of 80 mm x a thickness of 4 mm. Moreover, it carried out similarly to Example 1, and implemented the Charpy impact test. The length-weighted average fiber length of the fibrous filler in the unnotched test piece, the content ratio of the fibrous filler with a fibe...
Embodiment 5～8
[0294] In Example 1, 25 parts by mass of carbon fibers were respectively changed to glass fibers of each compounding amount shown in Table 1 (manufactured by Nittobo Co., Ltd., RS110QL483AC, E glass, number average fiber diameter 17 μm), in addition, In the same manner as in Example 1, the liquid crystal polyester resin particles 15 of Examples 5 to 8 having a cylindrical shape (length: 12 mm) were obtained. The length-weighted average fiber length of the fibrous filler (glass fiber) was 12 mm (Examples 5-8).
[0295]
[0296] Using the liquid crystalline polyester resin particles of Examples 5 to 8, it carried out similarly to Example 1, and produced the unnotched test piece of width 10mm*length 80mm*thickness 4mm. In addition, a Charpy impact test was performed in the same manner as in Example 1. The length-weighted average fiber length of the fibrous filler in the unnotched test piece, the content ratio of the fibrous filler with a fiber length of 1 mm or more in the unnot...
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Abstract
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