Characterization of various kinds of paper as reinforcement for biodegradable polymer composites

Abstract

Some structural characteristics and properties of a diverse paper selection were studied with the aim to create biodegradable polymer composites for packaging materials. Paper in such composites would serve as a reinforcement and biodegradable polymer as a matrix. Tensile and tear properties of the tested papers depended not only on paper density (or void content) but also on some other paper structure features. As polymers for composite production are applied from solution, the impact of solvent on the mechanical properties of paper was investigated.On uuritud eri paberiliikide mõningaid struktuuri iseärasusi ja omadusi eesmärgiga moodustada biolagunevaid polümeerkomposiite pakkematerjalide tootmiseks. Sellistes komposiitides on biolagunev polümeer maatriksiks ja paber tugevdavaks komponendiks. Testitud paberite tõmbe-ja rebimisomadused ei sõltu ainult paberi tihedusest (või vabast mahust), vaid samuti mõnest teisest paberi struktuuri iseärasusest. Kuna kasutatava polümeeri tootmine toimub lahuses, on uuritud ka lahusti mõju paberi mehaanilistele omadustele.

Barrier and sorption properties of porous poly(vinyl alcohol)–cellulose fibre composites

“…On the basis of previous studies [12] three dissimilar CFNs with different voids content (Table 1 ) were chosen for impregnation with PVA water solutions. Partly crystalline water-soluble PVA was used (molecular weight 133 kDa, density 1.28 g/cm'', content of acetate groups 0.98 wt%) and PVA solutions with various polymer concentrations (7-15%) were prepared.…”

Flexible Sensors for Hydrogen Peroxide Detection: A Critical Review

“…Moreover, paper is not as tough as carbonaceous materials or plastics, given their low tear resistance−the tear strength of paper ranges from 3 N mm −1 to 7 N mm −1 , compared with the 32.4 N mm −1 on average for PET. 66 The stability of paper deteriorates even more in the presence of water, limiting its application in wet environments. 67 Like other substrate materials, paper can also be decorated with nanostructures to make it conductive and sensitive to H 2 O 2 (Figure 4A).…”

“…Hence, it does not electrochemically participate in the detection mechanism. Moreover, paper is not as tough as carbonaceous materials or plastics, given their low tear resistance–the tear strength of paper ranges from 3 N mm –1 to 7 N mm –1 , compared with the 32.4 N mm –1 on average for PET . The stability of paper deteriorates even more in the presence of water, limiting its application in wet environments …”