Preparation method of reed rod and quartz compound modified polylactic acid material
A polylactic acid material and composite modification technology, which is applied in the field of preparation of modified polylactic acid materials, can solve the problems that the research on composite modified polylactic acid materials has not been reported in literature, etc., and achieve significant social value and economic value, and the raw material is cheap , the effect of good mechanical properties
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Embodiment 1
[0019] Step 1. Weigh various raw materials in the following parts by weight: 40 parts of polylactic acid, 12 parts of reed powder, 5 parts of quartz powder, 1.2 parts of coupling agent, and 0.5 part of lubricant; the preferred coupling agent is vinyl three Ethoxysilane. A preferred lubricant is polyethylene wax.
[0020] Step 2, adding polylactic acid, reed powder, quartz powder, coupling agent and lubricant weighed in step 1 to a mixer and mix evenly to obtain a mixture;
[0021] Step 3: Add the mixture described in step 2 into the extruder, and the temperatures in the feeding section, melting section, homogenizing section, and discharging section of the extruder are 160°C, 180°C, 200°C, 190°C Extrude under the condition of ℃ to obtain the extrudate of strip-shaped reed powder / quartz powder composite modified polylactic acid material with a diameter of about 3mm.
[0022] Table 1 shows the initial mechanical properties of the reed powder / quartz powder composite modified pol...
Embodiment 2
[0024] Step 1. Weigh various raw materials in the following parts by weight: 50 parts of polylactic acid, 10 parts of reed powder, 10 parts of quartz powder, 1.0 parts of coupling agent, and 0.8 parts of lubricant; the preferred coupling agent is γ-ammonia Propyltriethoxysilane. A preferred lubricant is polyethylene wax.
[0025] Step 2, adding polylactic acid, reed powder, quartz powder, coupling agent and lubricant weighed in step 1 to a mixer and mix evenly to obtain a mixture;
[0026] Step 3: Add the mixture described in step 2 into the extruder, and the temperatures in the feeding section, melting section, homogenizing section, and discharging section of the extruder are 160°C, 180°C, 200°C, 190°C Extrude under the condition of ℃ to obtain the extrudate of strip-shaped reed powder / quartz powder composite modified polylactic acid material with a diameter of about 3mm.
[0027] Table 1 shows the initial mechanical properties of the reed powder / quartz powder composite mod...
Embodiment 3
[0029] The preparation method of the reed powder / quartz powder composite modified polylactic acid material of the present embodiment comprises the following steps:
[0030] Step 1. Weigh various raw materials in the following parts by weight: 60 parts of polylactic acid, 15 parts of reed powder, 9 parts of quartz powder, 2 parts of coupling agent, and 1.2 parts of lubricant; the preferred coupling agent is γ-formazan Acryloyloxypropyltrimethoxysilane; preferred lubricant is white oil;
[0031] Step 2, adding polylactic acid, reed powder, quartz powder, coupling agent and lubricant weighed in step 1 to a mixer and mix evenly to obtain a mixture;
[0032] Step 3: Add the mixture described in step 2 into the extruder, and the temperatures in the feeding section, melting section, homogenizing section, and discharging section of the extruder are 160°C, 180°C, 200°C, 190°C Extrude under the condition of ℃ to obtain the extrudate of strip-shaped reed powder / quartz powder composite m...
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