Due to their widespread applications, the production and consumption of plastics have increased sharply and also brought about a lot of waste. However, only one-fourth of plastic solid waste is effectively recycled, and the rest is almost entirely disposed in landfills. In this article, high performance synthetic paper used for printing was successfully prepared from ultrahigh molecular weight polyethylene waste adopting thermally induced phase separation method. Silicon dioxide was added as filler and mineral oil was used as diluent. Whiteness, chemical resistance, tensile strength, thermal stability, surface morphology, and inkjet print of synthetic paper was investigated, respectively. It is indicated that the resulting synthetic paper possesses excellent printing effect. Its whiteness equally distributes around 80% and the highest tensile strength is up to 5.5 MPa. They also reveal good resistance to chemical corrosion and have good shape maintenance. As a result, the preparation of high performance synthetic paper for industrial applicability is expected to perform by recycling plastics waste.
The production of traditional cellulose paper not only consumes lots of timber, but also brings about some environmental issues. Therefore, it is being increasingly replaced by synthetic paper. In this study, ultrahigh molecular weight polyethylene (UHMWPE)/SiO 2 synthetic paper with high application performance was prepared by the thermally induced phase separation method using mineral oil as diluent. The corresponding properties of synthetic paper, including surface morphology, overall porosity, tensile strength, thermal stability, acid and alkali resistance, whiteness, and inkjet print effect were investigated respectively. The results show that the overall porosity of UHMWPE/SiO 2 synthetic paper is above 45%, and the tensile strength exceeds 4.3 MPa. UHMWPE/SiO 2 synthetic paper also presents light weight, as well as good resistance to heat, acid and alkali. Meanwhile, the average whiteness of the samples is up to 91.8%. The sample K-50, which contains 31.5 wt % SiO 2 , takes on the best print performance caused by its dense surface and higher SiO 2 content. It is indicated that UHMWPE/SiO 2 synthetic paper has good market prospects in the color printing.
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