A Study of Recycled Poly(butylene terephthalate) and Low-Density Polyethylene Blend

Poly(butyleneterephthalate) has the disadvantage of being brittle, so recycled polymer is often used less in real life. In this study, recycled poly(butylene terephthalate) was mixed with low-density polyethylene utilizing the plastic mixer and injection molding machine to improve it elastic modulus. The analyses were carried out by using the mixture of poly(butylene terephthalate) and 10 wt % of low-density polyethylene. The results indicate that tensile strength of the mixture is higher than that of pure polyethylene but less than that of recycled poly(butylene terephthalate). However, the mixture has the higher elastic modulus than pure polymers and its hardness is improved also.

Automated summary

Recycled PBT is often used less in real life due to its brittleness. However, by mixing it with low-density polyethylene, the elastic modulus can be improved, resulting in a higher tensile strength compared to pure polyethylene. Additionally, the mixture also shows higher hardness than pure polymers.