Resin composition and molded body using the same
A resin composition and resin technology applied in the field of thermoplastic resin compositions and moldings using them, achieving the effects of high plant-derived ratio, excellent impact resistance, and high utility value
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Embodiment 1～24、 comparative example 2～8
[0117] The thermoplastic resin (A), flame retardant (C), layered silicate (D), and plant The source filler (E) is supplied from the root supply port of the extruder. Furthermore, glass fibers were supplied from the sub-supply port of the extruder at the ratios shown in Table 1 and Table 2, and extruded while the vent port was acting under the conditions of a cylinder temperature of 240° C., a screw rotation speed of 230 rpm, and a discharge rate of 5 kg / h. out. The resin ejected from the front end of the extruder was cut into pellets to obtain pellets of the resin composition.
[0118] After vacuum-drying the obtained pellets at 90°C x 24 hours, using Toshiba Machine Co., Ltd. IS-80G injection molding machine, while adjusting the mold surface temperature to 85°C, a test piece for general physical property measurement was prepared. (ASTM type), for various determinations. In addition, the plate for measuring the amount of dent was molded in the same manner, and the depth of ...
Embodiment 7
[0128] In Examples 7 to 10, since the polylactic acid resin (A3) was blended, a molded product having a small degree of sinking and high dimensional accuracy was obtained. Especially in Example 8, by using the crosslinked polylactic acid resin (A3') as the polylactic acid resin (A3), compared with Example 7 using the same amount of uncrosslinked polylactic acid resin (A3), A molded body excellent in heat resistance was obtained.
[0129] In Examples 11 to 14, and 20 to 23, since the modified polyolefin resin (A2) was blended, molded articles having remarkably excellent impact resistance were obtained. Among them, in Examples 12, 14, and 20 to 23, molded articles particularly excellent in impact resistance were obtained by using an appropriate amount of the modified polyolefin resin (A2b).
Embodiment 15
[0130] In Examples 15 to 18, since kenaf fibers were blended as the plant-derived filler (E), molded articles excellent in heat resistance were obtained. Furthermore, compared with Example 15, since the delignification-processed kenaf fiber (E2) was used in Examples 16-18, the result which was clearer and excellent in the external appearance of a molded article was obtained.
[0131] In Examples 19 to 23, the results showing very excellent flame retardancy were obtained by using the flame retardant (C) containing a flame retardant auxiliary agent.
[0132] In Examples 21 to 23, since the phyllosilicate (D) was blended, molded articles with less warpage and burrs and excellent shape stability were obtained.
PUM
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