A biological modification process of lactic acid fiber with good spinnability
A technology of lactic acid fiber and biomodification, applied in fiber treatment, fiber type, biochemical fiber treatment and other directions, can solve the influence of the spinnability of special-shaped PLA fibers, and does not solve the problems of polylactic acid fibers that are not easy to dye, and achieve spinnability. Good, good hygroscopicity, simple raw material effect
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Embodiment 1
[0028] A kind of biological modification method of lactic acid fiber with good spinnability, its steps are as follows:
[0029] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:
[0030] PLA polylactic acid 72 parts;
[0031] 3 parts of hydroxypropyl starch;
[0032] 2 parts of cellulose diacetate;
[0033] 1.6 parts of mica powder;
[0034] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;
[0035] (3) Put 30 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried ordinary polylactic acid slices into a high-speed mixer and mix them evenly. The mixture is spun on a melt spinning machine through circular spinneret holes to obtain modified polylactic acid....
Embodiment 2
[0043] A kind of biological modification method of lactic acid fiber with good spinnability, its steps are as follows:
[0044] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:
[0045] PLA polylactic acid 75 parts;
[0046] 2 parts of hydroxypropyl starch;
[0047] 3 parts of cellulose diacetate;
[0048] 1.1 parts of mica powder;
[0049] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;
[0050] (3) Put 30 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried ordinary polylactic acid slices into a high-speed mixer and mix them evenly. The mixture is spun on a melt spinning machine through circular spinneret holes to obtain modified polylactic acid....
Embodiment 3
[0058] A kind of biological modification method of lactic acid fiber with good spinnability, its steps are as follows:
[0059] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:
[0060] PLA polylactic acid 73 parts;
[0061] 3 parts of hydroxypropyl starch;
[0062] 2 parts of cellulose diacetate;
[0063] 1.5 parts of mica powder;
[0064] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;
[0065] (3) Put 30 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried ordinary polylactic acid slices into a high-speed mixer and mix them evenly. The mixture is spun on a melt spinning machine through circular spinneret holes to obtain modified polylactic acid. ...
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