Tensile and flammability characterizations of corn straw slagging/high-density polyethylene composites

Abstract

Biocomposites were prepared with corn straw slagging (CSS) and high-density polyethylene (HDPE) at four loading levels (10, 20, 30, and 40 wt%) by extrusion method. CSS/HDPE composites were tested by tension, oxygen index meter, differential scanning calorimetry, X-ray diffraction, and the scanning electron microscopy. The scanning electron microscopy showed that CSS was dispersed uniformly in the HDPE matrix and strong interfacial interaction was achieved, which had an important influence on the tensile strength of the composites. The tensile strength of the composites could be improved with proper increase of CSS and reached maximum value at 30 wt% content. Furthermore, the addition of CSS played an important role in improving the flame-retardant ability of CSS/HDPE composites, and the limited oxygen index was 31.26% at 40 wt% content, good flame-retardant effect achieved.

Morphological and thermal properties of polystyrene composite reinforced with biochar from elephant grass (Pennisetum purpureum)

“…This can mean the filler or polymer is made of sustainable sources, for example, plant fibre, recycled material or waste yields and oils. 17,18 Consolidating biochar into composites could help improve the properties of the resulting composites 19,20 as well as lessen the utilization of engineered fillers in these materials, for example, carbon black. 21 Carbon black is a non-renewable filler, created from the treatment and preparing of hydrocarbons from the oil and gas industry.…”

Properties of flame-retardant leaf fiber cement-based composites at high temperatures

“…If a material is non-flammable, that means its LOI is high. In contrast, If a material is combustible, that means its LOI is low [ 43 ]. The material with less than 22.0% LOI is generally considered flammable, the material with LOI between 22.0% and 27.0% is flammable, and the material with an LOI greater than 27.0% is considered nonflammable [ 44 , 45 ].…”

From Waste to Reuse: Manufacture of Ecological Composites Based on Biopolyethylene/wood Powder with PE-g-MA and Macaíba Oil

“…The tensile strength of the BioPE/WP composite reduced approximately 10% compared to BioPE, indicating that the wood powder is acting as ller. At the same time, the BioPE/WP composite showed agglomerates of wood particles, as seen in Figure 3 (a), generating a concentration and intensi cation of the stress [57], contributing to the decrease in tensile strength. When the BioPE/WP composite was made compatible with PE-g-MA, the tensile strength reached the highest performance with 29.6 MPa, corresponding to gains of 39.6% and 54.9%, compared to BioPE and the composite BioPE/WP.…”