Modified polylactic acid material for disposable syringe
A polylactic acid and syringe technology, which is applied in the field of polylactic acid modified materials for disposable syringes, can solve the problems of not meeting the mechanical performance requirements of the syringe material, hard quality, high brittleness, etc., and achieve simple preparation process, reasonable formula, and complete degradation Effect
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Embodiment 1
[0025] 100kg of polylactic acid with a melt index of 6-20g / min, 5kg of polybutylene succinate with a melt index of 15-45g / min, 0.05kg of dicumyl peroxide, 2kg of cyclohexane-1,2 -Diisononyl dicarboxylate and 3kg of organic montmorillonite were added to a high-speed mixer with a rotation speed of 500r / min and stirred for 10 minutes to obtain a high-mixture, and then the high-mixture was put into a twin-screw extruder to extrude and granulate , and then water-cooled to obtain the polylactic acid modified material for disposable syringes.
Embodiment 2
[0027] 100kg of polylactic acid with a melt index of 6-20g / min, 18kg of polybutylene succinate with a melt index of 15-45g / min, 0.5kg of dicumyl peroxide, 3.5kg of cyclohexane-1, Diisononyl 2-dicarboxylate and 9kg of organic montmorillonite were added to a high-speed mixer with a rotation speed of 500r / min and stirred for 10 minutes to obtain a high-mixture, and then the high-mixture was put into a twin-screw extruder and extruded to produce granules, and then water-cooled to obtain the polylactic acid modified material for disposable syringes.
Embodiment 3
[0029] 100kg of polylactic acid with a melt index of 6-20g / min, 30kg of polybutylene succinate with a melt index of 15-45g / min, 1kg of dicumyl peroxide, 5kg of cyclohexane-1,2- Diisononyl diformate and 15kg organic montmorillonite were added into a high-mixer with a rotating speed of 500r / min and stirred for 10 minutes to obtain a high-mixture, and then the high-mixture was put into a twin-screw extruder to extrude and granulate. Then through water cooling, the polylactic acid modified material for disposable syringes is obtained.
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