1. China has been building out their railroad net for years now, both internally and reaching outwards
2. Those synergize with the loans. They are not "some" loans
3. Cultural exports have been going on for a while, though it has not been as successful as South Korea or Japan
4. China has been seriously wooing back Western-educated citizens to head R&D in a variety areas, for the past ten years or so. Quality-of-life, career advancements, respect and social status exceeds that of staying in the West. That's more the sufficient to successfully bring expertise back.
5. China has been adding more people into the international computing and network standards community. They are starting to influence that.
6. China has been developing its naval power. While it has yet to field a fully operational carrier group, its drone carrier program is probably further along than the US Navy
7. China needs to secure a supply of crude oil, since they are a net importer. The SE Asian shipping corridor, of which the Taiwanese strait anchors one end of it, is going to be hotly contested.
8. Along with some other countries, China has been involved in creation of an alternate world reserve currency. That is not yet successful as far as I know.
I think the general nationalist sentiment among Chinese citizens is along the lines of, "we were once a superpower, why shouldn't we be again?". And, the culture tends to be more amendable to thinking generationally; that is, the benefits may not be realized in this generation, but that's ok.