Method for toughening polydactyl acid through crosslinking sliding graft polymer
A technology of sliding grafting and toughening modification, which is applied in the field of blending modification of polylactic acid, can solve the problems of unreachable and high energy consumption, and achieve the effects of improving compatibility, improving flexibility and increasing adhesion
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[0015] Example 2:
[0016] The polylactic acid and sliding graft polymer were dried in a vacuum drying oven at 60°C for 48 hours; 98 parts of PLA and 2 parts of sliding graft polymer were placed in a Hack internal mixer at a rotation speed of 70 revolutions / min. The mixing temperature is 190°C, blending for 5 minutes, and banburying for 10 minutes to obtain polylactic acid / sliding graft polymer material.
[0017] The tensile strength of the material is 55Mpa, the elongation at break is 18%, and the Izod notched impact strength is 4KJ / m 2 .
Example Embodiment
[0018] Example 3:
[0019] The polylactic acid and sliding graft polymer were dried in a vacuum drying oven at 60°C for 48 hours; 80 parts of PLA and 20 parts of sliding graft polymer were placed in a Hack internal mixer at a rotation speed of 70 revolutions / min. The mixing temperature is 190°C, blending for 5 minutes, and banburying for 10 minutes to obtain polylactic acid / sliding graft polymer material.
[0020] The tensile strength of the material is 50Mpa, the elongation at break is 19%, and the Izod notched impact strength is 6KJ / m 2 .
Example Embodiment
[0021] Example 4:
[0022] The polylactic acid and the sliding graft polymer were dried in a vacuum drying oven at 60°C for 48 hours; 70 parts of PLA and 30 parts of sliding graft polymer were placed in a Hack internal mixer at a rotation speed of 70 revolutions / min. The mixing temperature is 190°C, blending for 5 minutes, and banburying for 10 minutes to obtain polylactic acid / sliding graft polymer material.
[0023] The tensile strength of the material is 45Mpa, the elongation at break is 23%, and the Izod notched impact strength is 7KJ / m 2 .
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