Toughening master batch and preparation method thereof, material for preparing diffusion plate and diffusion plate
A technology of toughening masterbatch and diffusion plate, which is applied in the field of polymers, can solve the problems of uneven mixing, achieve the effects of reducing white spots, improving light transmission uniformity, and improving performance
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[0030] The embodiment of the present invention also provides a preparation method of the above toughened masterbatch, comprising: mixing 50-90 parts of GPPS, 10-50 parts of SEBS, 3-15 parts of filler oil, 0.01-0.02 parts of lubricant and 0.05-0.15 parts of lubricant The antioxidants are mixed for granulation; specifically, the GPPS, the SEBS and the lubricant are mixed and then mixed with the extender oil and the antioxidant, and then granulated. Mixing GPPS and SEBS first, and then mixing with the filler oil can be beneficial to the dispersion of SEBS. If SEBS is mixed with the filler oil first, and then mixed with GPPS, SEBS cannot be mixed with GPPS evenly, which will lead to The distribution of SEBS is uneven, which in turn leads to the uneven distribution of SEBS when the subsequent masterbatch is mixed with GPPS to prepare a diffuser plate, which in turn leads to problems such as poor light transmittance of the diffuser plate.
[0031] Specifically, the GPPS, the SEBS an...
Embodiment 1
[0039] This embodiment provides a toughened masterbatch (see figure 2 ), whose raw materials include GPPS 80 kg, SEBS (see figure 1 ) 20 kg, white mineral oil 3.5 kg, zinc stearate 0.01 kg and antioxidant 1010 0.1 kg.
[0040] The present embodiment also provides a preparation method of the toughened masterbatch, comprising:
[0041] Weigh the corresponding substances according to the above-mentioned quality, put GPPS, SEBS and zinc stearate into the mixer, mix at 400r / min for 10 minutes, then add white mineral oil and antioxidant 1010, at 100r / min The mixture was mixed for 3 minutes and then allowed to stand for 1 hour. Then, the above mixture was added to a twin-screw extruder for granulation.
[0042] This embodiment also provides a material for preparing a diffuser plate. The raw materials include 100 kg of GPPS, 2 kg of the above toughening masterbatch, 1.5 kg of organic silicon light diffusing agent and 0.5 kg of titanium dioxide.
[0043] The embodiment of the prese...
Embodiment 2- Embodiment 5
[0045] Examples 2 to 5 respectively provide a toughening masterbatch. The preparation method of the toughening masterbatch provided in Examples 2-5 is the same as the preparation method of the toughening masterbatch provided in Example 1. The difference is that the The formulation of toughening masterbatch is different, as shown in the following table:
[0046]
[0047] Example 2-Example 5 used the above corresponding toughened masterbatches to prepare diffuser plates. The preparation method was the same as that of Example 1, except that the toughened masterbatches of Example 1 were replaced with the toughened masterbatches of the corresponding examples. .
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