A kind of high toughness polylactic acid/abs alloy material and preparation method thereof
An alloy material and polylactic acid technology, which are applied in the field of high toughness polylactic acid alloy material and its preparation, can solve the problems of poor interfacial adhesion, the mechanical properties of the material have not been greatly improved, the size of the phase region of the prepared material is large, etc., and the fracture can be achieved. The effect of increased elongation
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Embodiment 1
[0030] After mixing 90 parts by weight of ABS pellets and 10 parts by weight of PLA, they are extruded and granulated on a co-rotating twin-screw extruder. The temperature range from the feed port to the die is (100, 145, 175, 185, 190, 195, 190), and the screw speed is 470r / min. The extruded samples were dried in a vacuum oven at 60 °C for 8 h.
[0031] Test sample preparation: use Babyplast 610P micro-injection molding machine to prepare stretched specimens, the specimen gauge length is 7mm, the specimen thickness is 0.5mm, and the specimen width is 3mm; among them, the injection molding process parameters are as follows: measuring position: 20mm; cooling time: 13s; injection pressure: 80MPa, injection rate 60mm / s, mold opening stroke: 74mm, mold clamping pressure: 60MPa, temperature of each section: plasticizing 210°C, injection chamber 205°C, nozzle 195°C, mold temperature 25°C.
[0032] The tensile test uses a universal tensile testing machine (model UTM2203, Shenzhen San...
Embodiment 2
[0034] After mixing 90 parts by weight of ABS pellets and 10 parts by weight of PLA, they are extruded and granulated on a co-rotating twin-screw extruder. The temperature range from the feed port to the die is (100, 145, 175, 185, 190, 195, 190), and the screw speed is 470r / min. The extruded samples were dried in a vacuum oven at 60 °C for 8 h.
[0035] Sample preparation: Babyplast 610P micro-injection molding machine was used to prepare tensile splines, the gauge length of the spline was 7mm, the thickness of the sample was 0.5mm, and the width of the sample was 3mm; among them, the injection molding process parameters were as follows: measuring position: 20mm; cooling time: 13s; injection pressure: 60MPa, injection rate 40mm / s, mold opening stroke: 74mm, mold clamping pressure: 60MPa, temperature of each section: plasticizing 210°C, injection chamber 205°C, nozzle 195°C, mold temperature 25°C.
[0036] The tensile test uses a universal tensile testing machine (model UTM220...
Embodiment 3
[0038] After mixing 90 parts by weight of ABS pellets and 10 parts by weight of PLA, they are extruded and granulated on a co-rotating twin-screw extruder. The temperature range from the feed port to the die is (100, 145, 175, 185, 190, 195, 190), and the screw speed is 470r / min. The extruded samples were dried in a vacuum oven at 60 °C for 8 h.
[0039] Sample preparation: Babyplast 610P micro-injection molding machine was used to prepare tensile splines, the gauge length of the spline was 7mm, the thickness of the sample was 0.5mm, and the width of the sample was 3mm; among them, the injection molding process parameters were as follows: measuring position: 20mm; cooling time: 13s; injection pressure: 120MPa, injection rate 80mm / s; mold opening stroke: 74mm, mold clamping pressure: 60MPa, temperature of each section: plasticizing 210 degrees, injection chamber 205 degrees, nozzle 195 degrees, mold temperature 25 degrees.
[0040] The tensile test uses a universal tensile test...
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