Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhancing thermal conductivity of bulk polyethylene along two directions
  by paved crosswise laminate   Recently, some reports show that the ultra-low thermal conductivity of bulk
polymers can be enhanced along one direction, which limits its applications.
Here, we proposed paved crosswise laminate methods which can enhance the
thermal conductivity of bulk polyethylene (PE) along two directions. We find
that the thermal conductivity of paved crosswise polyethylene laminate (PPEL)
reaches as high as 181 W/m-K along two in-plane directions, which is three
orders of magnitude larger than bulk amorphous polyethylene and even more than
two times larger than PE single chain (54 W/m-K). The analyses of mechanism
indicated that PPEL is a much more crystal-like structure due to the
inter-chain van der Waals interactions. Our study may provide guides on the
design and fabrication of polymer structures with high thermal conductivity.

7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin