Special light diffusion material for light-diffusion PET (polyethylene terephthalate) sheet and manufacturing method thereof
A technology of light diffusion and special materials, which is applied in the field of polymer materials, can solve the problems of uniform light diffusion, inability to achieve uniform light diffusion, secondary dispersion, etc., and achieve high light diffusion, excellent light transmission, and good weather resistance Effect
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Embodiment 1
[0028] The mass percentage of each component of a special light diffusion material is composed as follows:
[0029]
[0030] The preparation method is as follows: the raw materials of each component are stirred uniformly by a mixer at a speed of 80 r / min, and then the uniformly mixed blend is melted and extruded through a twin-screw extruder, dried and cooled, and granulated;
[0031] Among them, the main engine current of the twin-screw extruder is controlled at 44A, the main engine speed and feeding control are 300r / min and 25HZ respectively, the melt pressure is controlled at 1.35MPa, the pelletizer speed is 400r / min, and the temperature control of each zone is shown in Table 1. Shown:
[0032] Table 1:
[0033] Zone 1°C
Embodiment 2
[0035] The mass percentage of each component of a special light diffusion material is composed as follows:
[0036]
[0037] The preparation process of Example 2 is as follows: the raw materials of each component are stirred uniformly at a speed of 80 r / min through a mixer, and then the homogeneously mixed blend is melt-extruded through a twin-screw extruder, dried and cooled, and granulated. can;
[0038] Among them, the main engine current of the twin-screw extruder is controlled at 44.2A, the main engine speed and feeding control are 300r / min and 30HZ respectively, the melt pressure is controlled at 2.05MPa, the pelletizer speed is 400r / min, and the temperature control of each zone is shown in the table 1.
Embodiment 3
[0040] The mass percentage of each component of a special light diffusion material is composed as follows:
[0041]
[0042] The preparation process of Example 3 is as follows: the raw materials of each component are stirred uniformly by a mixer at a speed of 80r / min, and then the homogeneously mixed blend is melt-extruded through a twin-screw extruder, dried and cooled, and granulated. can;
[0043] Among them, the main engine current of the twin-screw extruder is controlled at 44.2A, the main engine speed and feeding control are 325r / min and 30HZ respectively, the melt pressure is controlled at 2.60MPa, the pelletizer speed is 400r / min, and the temperature control of each zone is shown in the table 1.
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Abstract
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