A kind of biodegradable modified lignin particle and its manufacturing method
A technology of biodegradation and manufacturing method, which is applied in the field of biodegradable modified lignin particles and its manufacture, can solve the problems of increasing the cost of fully biodegradable materials, poor mechanical properties and processing stability, and low elasticity of fully biodegradable materials. Achieve the effect of avoiding waste of food resources, improving material carrying capacity, and abundant reserves
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Embodiment 1
[0032] A biodegradable modified lignin particle, the raw material components used include:
[0033] 45 parts by weight of lignin, 47 parts by weight of polybutylene adipate / terephthalate, 3 parts by weight of stearic acid, 2 parts by weight of polyethylene wax and 0.5 parts by weight of oleic acid amide.
[0034] A method for preparing the biodegradable modified lignin particles, comprising the following steps:
[0035] (1) Take each raw material component according to the above parts by weight and mix them to obtain a mixture. The mixture was heated to 50° C. and stirred at a stirring speed of 300 r / min for 12 minutes, so that the raw material components in the mixture were further uniformly mixed to obtain a coarse material;
[0036] (2) Get the coarse material obtained in the step (1), use a twin-screw extrusion granulator to carry out granulation operation, the screw speed is 150r / min, and the granulation temperature is 120°C, to obtain the obtained granules with a partic...
Embodiment 2
[0038] A biodegradable modified lignin particle, the raw material components used include:
[0039] 38 parts by weight of lignin, 55 parts by weight of polybutylene adipate / terephthalate, 2 parts by weight of stearic acid, 3 parts by weight of polyethylene wax and 0.8 parts by weight of oleic acid amide.
[0040] A method for preparing the biodegradable modified lignin particles, comprising the following steps:
[0041] (1) Take each raw material component according to the above parts by weight and mix them to obtain a mixture. The mixture was heated to 40° C. and stirred at a stirring speed of 500 r / min for 8 minutes, so that the raw material components in the mixture were further uniformly mixed to obtain a coarse material;
[0042] (2) Get the coarse material obtained in the step (1), use a twin-screw extrusion granulator to carry out the granulation operation, the screw speed is 100r / min, and the granulation temperature is 150°C, to obtain the obtained granules with a par...
Embodiment 3
[0044] A biodegradable modified lignin particle, the raw material components used include:
[0045] 38 parts by weight of lignin, 40 parts by weight of polybutylene adipate / terephthalate, 3 parts by weight of stearic acid, 3 parts by weight of polyethylene wax and 1 part by weight of oleic acid amide.
[0046] A method for preparing the biodegradable modified lignin particles, comprising the following steps:
[0047] (1) Take each raw material component according to the above parts by weight and mix them to obtain a mixture. The mixture was heated up to 60° C. and stirred at a stirring speed of 300 r / min and a stirring time of 12 minutes, so that the raw material components in the mixture were further uniformly mixed to obtain a coarse material;
[0048](2) Get the coarse material gained in step (1), use a twin-screw extrusion granulator to carry out the granulation operation, the screw speed is 300r / min, and the granulation temperature is 120°C, to obtain the 1cm particle di...
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