A comparative study on thermal conductivity and permittivity of composites based on linear low‐density polyethylene and poly(lactic acid) filled with hexagonal boron nitride

2021 ◽  
Author(s):  
Sergey M. Lebedev
Keyword(s):  
Thermal Conductivity ◽  
Lactic Acid ◽  
Boron Nitride ◽  
Comparative Study ◽  
Hexagonal Boron Nitride ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Linear Low Density Polyethylene

Phase Structure of Compatibilized Poly(Lactic Acid)/Linear Low-Density Polyethylene Blends

2009 ◽  
Vol 48 (4) ◽  
pp. 823-833 ◽  
Author(s):  
Zhizhong Su ◽  
Qiuying Li ◽  
Yongjun Liu ◽  
Haiyan Xu ◽  
Weihong Guo ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Phase Structure ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polyethylene Blends

Study on the Crystallinity and Mechanical Properties of PC/PLA/LLDPE/ Montmorillonite Blends

2013 ◽  
Vol 739 ◽  
pp. 38-41
Author(s):  
Yi Chen ◽  
Yue Peng ◽  
Wen Yong Liu ◽  
Guang Sheng Zeng ◽  
Xiang Gang Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Impact Strength ◽  
High Performance ◽  
Impact Resistance ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Elongation At Break

Polycarbonate/poly (lactic acid)/(PC/PLA) blend is a kind of novel potential material for introducing the degradability of PLA to high performance PC. However, the bad compatibility between PC and PLA results in poor impact resistance and strength, which limits its applications. For resolving the problem, linear low density polyethylene (LLDPE) was added into blend to improve the mechanical properties, especially the toughness. Meantime, nanosized montmorillonite was also used as an additive for modifying the blend. The results showed that the the tensile and impact strength, the elongation at break of PC/PLA all be improved with the increase of LLDPE, the nanosized montmorillonite could also increase the strength of blends when the content is lower than wt5% of blends.

Mechanical, morphological and thermal properties of linear low density polyethylene/poly(lactic acid) blends

2018 ◽  
Author(s):  
Engku Zaharah Engku Zawawi ◽  
Dzaraini Kamarun ◽  
Rozana Mohd Dahan ◽  
Nor Haleeda Mohammad Adzhar
Keyword(s):  
Lactic Acid ◽  
Thermal Properties ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Linear Low Density Polyethylene

scholarly journals Boron Nitride-Filled Linear Low-Density Polyethylene for Enhanced Thermal Transport: Continuous Extrusion of Micro-Textured Films

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3393
Author(s):  
Özgün Güzdemir ◽  
Sagar Kanhere ◽  
Victor Bermudez ◽  
Amod A. Ogale
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Surface Area ◽  
Thermal Transport ◽  
Polymer Materials ◽  
Low Density Polyethylene ◽  
Packaging Materials ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Continuous Extrusion

With shrinking size of electronic devices, increasing performance and accompanying heat dissipation, there is a need for efficient removal of this heat through packaging materials. Polymer materials are attractive packaging materials given their low density and electrical insulating properties, but they lack sufficient thermal conductivity that inhibits heat transfer rate. Hexagonal boron nitride (BN) possesses excellent thermal conductivity and is also electrically insulating, therefore BN-filled polymer composites were investigated in this study. Results showed successful continuous extrusion of BN-filled linear low-density polyethylene through micro-textured dies that is a scalable manufacturing process. Through-thickness thermal conductivity measurements established that 30 vol% BN content led to an over 500% increase in thermal conductivity over that of pure polymer. Textured film surface provided about a 50% increase in surface area when compared with non-textured films. This combination of increased surface area and enhanced thermal conductivity of BN-filled textured films indicates their potential application for improved convective thermal transport.

scholarly journals Mechanical and Optical Properies of Poly Lactic Acid Modified Linear- Low Density Polyethylene / Low Density Polyethylene (Lldpe/Ldpe) Blend Blown Film

2012 ◽  
pp. 122-125
Author(s):  
Omveer Singh ◽  
Pradeep Upadhyaya ◽  
T.k Mishra ◽  
Navin Chand
Keyword(s):  
Lactic Acid ◽  
Polylactic Acid ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Melt Blending ◽  
Linear Low Density Polyethylene ◽  
Blown Film ◽  
Twin Screw ◽  
Poly Ethylene

Poly lactic acid (PLA) is well known aliphatic poly-esters derived from corn and sugar beets, and degrades into nontoxic compounds in landfill. Melt blending of poly lactic acid and linear low density polyethylene (LLDPE) was performed in an effort to toughen polylactic acid. Melt blending of linear low density polyethylene (LLDPE) and polylactic Acid (PLA) and Low density poly ethylene (LDPE) were performed in a twin screw extruder with post extrusion blown film. The blend compositions were optimized by mechanical properties. On the basis of this, LLDPE 80 wt % LDPE 20 wt% and 1-4 wt% poly lactic acid (PLA) were found to be an optimum composition. The blends were characterized according to their mechanical and optical behavior. This blend may be used for packaging application.

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