Dupont Company has successfully researched two new technologies that can improve the barrier properties of polyester bottles. The first is to modify the polymer and increase the barrier property of the original PET by 2 to 3 times. The second method is to use â€œtransparent aluminum compoundsâ€. Surface coating technology can improve the barrier properties of the original PET 30 to 40 times. There are no problems with recycling using this coating. Both of these new technologies are near commercialization.
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