POLYOLEFIN NANOCOMPOSITES IN TPOS

摘要

The commercial promise of polyolefin nanoclay composites has been tied to the level of exfoliation of the nanoclay. This has been driven mostly by automotive demands for increasing performance of TPO materials. The most common promise of nanocomposites in TPO applications is the impact/modulus balance while retaining low specific gravity There are often many additional benefits that nanoclays can offer, such as controlled shrink and CLTE, improved surface appearance, and warp resistance, among others. However, different approaches may be required to achieve these benefits. The relevance of both the degree of exfoliation and the method of exfoliation will be discussed in this paper as related to the expected benefits. Comparisons will be made between existing TPO composites and current and potential nanocomposite TPO.