We know that many high-molecular materials have good thermal expansion performance. for example, the thermal expansion coefficient of PDMS reaches about 9.6%/100℃.
Now we want to take advantage of the thermal expansion properties of high molecular materials, is there a reliable way to modify materials without losing a lot of strength and flexibility, improve the thermal expansion properties of materials (or reduce the starting temperature of thermal expansion behavior)?
Thank everyone for your attention to the problem.
Dear Xiang Sun
The below-mentioned may be useful to you.
1. Article Improvement of mechanical properties of elastic materials by...
2. https://doi.org/10.31399/asm.hb.emde.a0003023
I would suggest both of the desired properties are promoted by lowering the Tg of the polymer. That is also the 'secret' behind PDMS in general.
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