Long-acting antibacterial and mildew-proof PP/PS plastic and preparation method thereof
A technology of antibacterial and antifungal, antibacterial and antifungal agent, which is applied in the field of long-acting antibacterial and antifungal PP/PS plastics and its preparation, can solve the problems of low mixing efficiency, high cost, and high requirements for ground flatness, and improve work efficiency , improve the uniformity, reduce the effect of mixing time
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0037] In the specific implementation process, such as Figure 1-5 As shown, a long-acting antibacterial and mildew-proof PP / PS plastic preparation method is completed by using a twin-screw extruder. The preparation method includes:
[0038] S1. Add PP masterbatch, PS masterbatch, antibacterial and antifungal agent, microcrystalline cellulose, plasticizer, toughener, antioxidant, and ultraviolet absorber to the twin-screw extruder according to the ratio for mixing squeeze out
[0039] S2. Transport the material extruded in step S1 to a single-screw extruder for extrusion and granulation, so as to obtain long-acting antibacterial and antifungal PP / PS plastics; "S1" and "S2" specifically indicate "step one" , "Step 2";
[0040] The four temperature sections in the mixing and extrusion process are: feeding section 110-120°C, conveying section 125-135°C,...
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