Fiber for actuators, and actuator and fiber product using same
A technology of actuators and fibers, applied in fiber processing, fiber chemical characteristics, mechanisms that generate mechanical power, etc., can solve problems such as small displacement force, and achieve the effect of large spring index
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Embodiment 1
[0103] A polyethylene terephthalate (PET) resin (T755M manufactured by Toray Co., Ltd.) was continuously supplied to a single-screw extruder, and melt-extruded at a temperature of 280°C. The extruded molten polymer is metered with a gear pump, sent to the spinning assembly, spun out from a circular cross-section with a spinneret, and stretched to produce polyethylene terephthalate with a diameter of 130.5 μm. Alcohol ester monofilament.
[0104] After fixing the upper end of the manufactured polyethylene terephthalate monofilament to the shaft of the stirrer equipped with a rotating motor, a weight of 27 g is attached to the lower end of the monofilament to apply tension during winding. A tension of 20MPa has been achieved. Next, the rotary motor of the mixer was operated at 200 rpm to produce fibers for actuators. Table 1 shows the obtained fibers for actuators and the evaluation results of the wearing test. In addition, the heat of fusion of complete crystallization of po...
Embodiment 2～10
[0106] In Example 2, the thermoplastic resin in Example 1 was changed to nylon 6 resin ("Amilan" polyamide CM1017 manufactured by Toray Co., Ltd., melt extrusion temperature: 260°C), and in Example 3 it was changed to nylon 6 , 6 resin ("Amiran" polyamide CM3001-N manufactured by Toray Co., Ltd., melt extrusion temperature: 290° C.), which was changed to nylon 6,10 resin in Example 4 ("Amilan" polyamide manufactured by Toray Co., Ltd. CM2001, melt extrusion temperature: 270°C), which was changed to nylon 6,12 resin in Example 5 ("Bestamid" D18 manufactured by Daicel Ebonick, melt extrusion temperature: 215°C), and in Example 6, It was changed to nylon 10,10 resin (Daisel Ebonick "Bestamid" Terra DS, melt extrusion temperature: 250° C.), and in Example 7 it was changed to high-density polyethylene (HDPE) resin (KK Prime Polymer Co., Ltd. HIGHEX 5000SR, melt extrusion temperature: 180°C), which was changed to linear low-density polyethylene (LLDPE) resin in Example 8 (Neozex 201...
Embodiment 11、12、 comparative example 1
[0109] Embodiment 11, 12, comparative example 1, 2
[0110] In Example 1, except changing the fiber diameter d as shown in Table 2, it implemented like Example 1. Table 2 shows the obtained fibers for actuators and the evaluation results of the wearing test.
[0111] In Comparative Examples 1 and 2, since the spring index D / d was small, the actuator fiber was a hard spring, and the expansion and contraction rate was also low. In the wearing test, all evaluations of softness, followability, and pressure were low, and the wearing feeling was poor.
[0112] [Table 2]
[0113] Table 2
[0114]
[0115] PET: polyethylene terephthalate
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