Review Reports

Round 1

Reviewer 1 Report

The comments of polymers-1684170 were listed as follows:

（1）The properties of pure PP is missing. Please provide theese data accordingly. This will help the readings to understand the role of inorganic fillers played in the composite systems. 

(2) Although it might be beyond the scope of this work, how is the other mechanical properties such as tensile and flexural strength and modulus? In other words, will carbon fiber and graphite flake have a reinforcing effect or not?

(3) There might be many small pieces in the section of Introduction. I suggested the authors revise the Introduction part thoroughly. 

 

Thanks. 

Author Response

Thank you for your kind comments.

I have attached the answer to the comments.

Author Response File: Author Response.docx

Reviewer 2 Report

It is an interesting and practical research.

I recommend it for publication.

Author Response

Thank you for your kind comments.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The authors have addressed my comments.