Switching off PAE wet strength
2019; De Gruyter; Volume: 34; Issue: 1 Linguagem: Inglês
10.1515/npprj-2018-0074
ISSN2000-0669
AutoresDong Yang, Alexander Sotra, Robert Pelton,
Tópico(s)Advanced Sensor and Energy Harvesting Materials
ResumoAbstract The wet strength of cellulose-cellulose joints, reinforced with PAE-loaded microgels, was decreased by nearly a factor of two when the labile disulfide crosslinks on the supporting microgels were exposed to a reducing agent. The supporting microgels were temperature and pH sensitive poly( N -isopropylmethacrylamide-co-acrylic acid) microgels, prepared with a disulfide crosslinker. The level of PAE loading increased with the microgel carboxyl content. This work illustrates a new approach to increasing the recyclability and compostability of wet-strength papers made with PAE wet-strength resin.
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