Abstract
In the present study, lithium chloride (LiCl) was utilized as a modifier to reduce the melting point of polyamide 6 (PA6), and then 15 wt % microcrystalline cellulose (MCC) was compounded with low melting point PA6/high-density polyethylene (HDPE) by hot pressing. Crystallization analysis revealed that as little as 3 wt % LiCl transformed the crystallographic forms of PA6 from semi-crystalline to an amorphous state (melting point: 220 °C to none), which sharply reduced the processing temperature of the composites. LiCl improved the mechanical properties of the composites, as evidenced by the fact that the impact strength of the composites was increased by 90%. HDPE increased the impact strength of PA6/MCC composites. In addition, morphological analysis revealed that incorporation of LiCl and maleic anhydride grafted high-density polyethylene (MAPE) improved the interfacial adhesion. LiCl increased the glass transition temperature of the composites (the maximum is 72.6 °C).
Highlights
Over the last two decades, studies about polymer blends based on polyamide 6 (PA6) and high-density polyethylene (HDPE) have received a great deal of interests
PA6, microcrystalline cellulose (MCC), and lithium chloride (LiCl) were dried at 103 ◦ C for 12 h in an oven, and LiCl was ground into particles that passed through a 100-mesh screen; PA6, HDPE, maleic anhydride grafted high-density polyethylene (MAPE), and LiCl were blended in a Haake torque rheometer (Thermo Fisher Scientific, Waltham, MA, USA) at 230 ◦ C
Tp, Tm, and Xc of the composites with of the composites with 3 wt% LiCl were disappeared (Figure 1 and Table 2), which demonstrated that 3 wt % LiCl were disappeared (Figure 1 and Table 2), which demonstrated that the crystal morphology the crystal morphology of PA6 was varied from semi‐crystalline to amorphous state
Summary
Over the last two decades, studies about polymer blends based on polyamide 6 (PA6) and high-density polyethylene (HDPE) have received a great deal of interests. Bio-based materials are regarded as having some of the greatest potential to replace and reduce the depletion of fossil resources [9,10], which is due to the unique properties of natural fibers, including biodegradability, renewability, high mechanical properties, low cost, and density [11]. LiCl was used to decrease the melting point of PA6 and the processing temperature, and improve the mechanical properties of the composites. The effects of various LiCl and MAPE contents on crystal, mechanical, morphological, and thermal properties of the resulting composites were studied
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
