Affiliation:
1. College of Materials Science and Engineering, Shenzhen University, Shenzhen 518053, China
2. College of Chemistry and Environment Engineering, Shenzhen University, Shenzhen 518053, China
3. Guangdong Provincial Enterprise Key Laboratory of Smart Automotive Display, Varitronix (Heyuan) Display Technology Limited, Heyuan 517000, China
Abstract
The flame-retardancy of polymeric materials has garnered great interest. Most of the flame retardants used in copolymers are functionalized additives, which can deteriorate the intrinsic properties of these materials. As a new type of flame retardant, functionalized metal–organic frameworks (MOFs) can be used in surface coatings of polymers. To reduce the flammability, a mixture of phytic acid, multi-wall carbon nanotubes, zirconium-based MOFs, and UiO-66 was coated on a PC/ABS substrate. The structure of the UiO-66-based flame retardant was established by FT-IR, XRD, XPS, and SEM. The flammable properties of coated PC/ABS materials were assessed by LOI, a vertical combustion test, TGA, CCT, and Raman spectroscopy. The presence of a UiO-66-based coating on the PC/ABS surface resulted in a good flame-retardant performance. Heat release and smoke generation were significantly reduced. Importantly, the structure and mechanical properties of PC/ABS were less impacted by the presence of the flame-retardant coating. Hence, this work presents a new strategy for the development of high-performance PC/ABC materials with both excellent flame-retardancy and good mechanical properties.
Funder
Guangdong Basic and Applied Basic Research Foundation
Shenzhen Science and Innovation Commission
Key Project of Department of Education of Guangdong Province
Heyuan Science and Technology Innovation Strategy