Facile fabrication of hydrolysis resistant phosphite antioxidants for high-performance optical PET films via in situ incorporation

Sun, Shuai and Wang, Lipeng and Song, Pingan and Ding, Liping and Bai, Yongping (2017) Facile fabrication of hydrolysis resistant phosphite antioxidants for high-performance optical PET films via in situ incorporation. Chemical Engineering Journal, 328. pp. 406-416. ISSN 1385-8947

Abstract

Phosphite antioxidants are extensively used in polyester industry due to extraordinary antioxidative and chromaticity protection capabilities. Unfortunately, they are highly susceptible to hydrolysis leading to reduced antioxidative activity, which remains unsatisfactorily addressed so far. In this work, we have demonstrated the fabrication of hydrolysis resistant hybridized phosphite antioxidants (PSLDH) by physically melt-blending with layered double hydroxides (LDH) based on the hydrolysis mechanism. X-ray diffraction measurements indicate that basically phosphite antioxidants are physically hybridized with the LDH. Accelerated hydrolysis results show that as-fabricated hybridized phosphite antioxidants show much superior anti-hydrolysis capability to the unmodified counterpart because the basic LDH can neutralize the phosphoric acid created during hydrolysis, thus effectively prohibiting the self-catalytic effect. High performance optical poly(ethylene terephthalate) (PET) materials are then synthesized by in situ adding PSLDH in the polycondensation process. Only adding 0.05 wt% of the PSLDH containing 10 wt% of LDH can remarkably improve the anti-oxidative and chromaticity performances of the resultant PET. This work provides an innovative methodology for developing high-performance value-added chemical additives via facile physical hybridization.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - USQ Other
Date Deposited: 15 Nov 2017 02:20
Last Modified: 15 Nov 2017 02:20
Uncontrolled Keywords: chromaticity; hydrolysis resistance; optical PET; phosphites antioxidants; transmission
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030301 Chemical Characterisation of Materials
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030303 Optical Properties of Materials
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8606 Industrial Chemicals and Related Products > 860604 Organic Industrial Chemicals (excl. Resins, Rubber and Plastics)
Identification Number or DOI: 10.1016/j.cej.2017.07.070
URI: http://eprints.usq.edu.au/id/eprint/32879

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