Preparation of photochromic isotactic polypropylene filaments: influence of drawing ratio on their optical, thermal and mechanical properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F20%3A00007625" target="_blank" >RIV/46747885:24410/20:00007625 - isvavai.cz</a>

Result on the web

<a href="https://journals.sagepub.com/doi/full/10.1177/0040517520912037" target="_blank" >https://journals.sagepub.com/doi/full/10.1177/0040517520912037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0040517520912037" target="_blank" >10.1177/0040517520912037</a>

Result language

angličtina

Original language name

Preparation of photochromic isotactic polypropylene filaments: influence of drawing ratio on their optical, thermal and mechanical properties

Original language description

In this research, metallocene catalyst isotactic polypropylene (miPP) filaments were produced with different concentrations of photochromic pigments to develop ultraviolet (UV) sensing materials. The produced miPP filaments showed good photochromic response under UV irradiation. In this work, six drawing ratios were applied to get the final product (miPP filament). Resultant filaments showed significant photochromic responses, such as Kubelka–Munk values (K/S). The interesting observation was that the photochromic response was indirectly proportional to the applied drawing ratio. The photochromic color build was found to be maximum with the highest concentration of pigment as well as the lowest drawing ratio. Overall, it was observed that the thermal properties were significantly dependent on the drawing ratio. The changes in thermal properties, such as T , ΔH and ΔS , for miPP filaments in dependence on photochromic pigment concentration was significantly less as compared to the drawing ratios. The thermal properties improved with the drawing ratio, which directly influenced the crystallinity of produced miPP filaments. The addition of photochromic pigment to the miPP filaments increased the crystallinity by 14%. Also, the lamella thickness increased with increasing the drawing ratio. However, there was no significant effect of pigment concentration on lamella thickness. In this experimental work, the impact of drawing ratio on the optical, thermal and mechanical properties of photochromic miPP filaments was investigated. m m m

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Project

<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Textile Research Journal

ISSN

0040-5175

e-ISSN

—

Volume of the periodical

90

Issue of the periodical within the volume

19-20

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

2136-2148

UT code for WoS article

000523946300001

EID of the result in the Scopus database

2-s2.0-85083376332