Protein reduction of natural rubber films through leaching solvent

Abstract

The finished product natural rubber latex gloves consist of latex proteins, which may pose a risk of allergic reactions in some latex-sensitive individuals. The allergic reactions depend on mild exposure to heavy exposure. An alternative solution to allergic users, usage of latex-free gloves are lack of elasticity and less comfort. This study aims to investigate natural rubber films protein reduction via three types of leaching solvent: acetic acid, sodium hydroxide, and ethanol in the leaching process. Then the influence of leaching solvent concentration on the physical properties of natural rubber gloves was analyzed. It was found that the acetic acid performed greater protein reduction effect (30.07%), followed by sodium hydroxide (27.77%), whereas the ethanol was shown to be less significant to protein reduction. All samples were fulfilling the mechanical properties as required in ASTM standard.

Energy dissipation in natural rubber latex films: The effect of stabilizers, leaching and acetone‐treatment

“…This can be related to the ability of acetone to remove the insoluble proteins. [ 33 ] The presence of KOH stabilizer could have affected the structure of the proteins making them less extractable by the acetone. This can explain the smaller amount of surface proteins revealed by the staining between the samples containing KOH and ammonium caseinate stabilizer (Figure 8).…”

“…[32] KOH can even be used in the posttreatment method for removing the proteins from NR samples. [33] According to the normalizer FTIR spectra shown in Figure 3, dNR_a.c. containing ammonia caseinate had the lowest amount of proteins, but the highest content of phospholipids.…”

Density, water, and swelling characteristics of cellular palm kernel oil bio‐polyol modified polyurethane toward more sustainable growing media application

“…The internal and external wall surfaces of high‐rise buildings offer great space for vertical green wall gardens, providing many social and environmental benefits for its inhabitants; while enabling the further development of cities and urbanization 6 . Green plants on vertical landscapes can act as natural air filtration and noise abeyance, besides reducing the ambient temperature of the building 7 . However, implementing green wall systems has several obstacles, including the selection of the right plant growing media type.…”