请把以下中文翻译成英文

This paper describes the basic knowledge of the PP, development, modification and cross-linking of related research. PP mainly focus on cross-linking of the PP to add cross-linker, the PP cross-linked chemical modification, to raise expectations of the PP mechanical properties, thereby broadening the scope of its application. And through a series of performance tests on the samples, draw some valuable conclusions, in order to understand cross-linker, molding, molding temperature on the PP the impact of cross-linking to find the balance between the four points.