Compaction behavior, mechanical properties, and moisture resistance of torrefied and non-torrefied biomass pellets

2014 ◽  
Author(s):  
Tianmiao Wang
Keyword(s):  
Mechanical Properties ◽  
Moisture Resistance ◽  
Compaction Behavior ◽  
Torrefied Biomass

scholarly journals Influence of a bark-filler on the properties of PLA biocomposites

2021 ◽  
Vol 56 (15) ◽  
pp. 9196-9208
Author(s):  
Piotr Borysiuk ◽  
Piotr Boruszewski ◽  
Radosław Auriga ◽  
Leszek Danecki ◽  
Alicja Auriga ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Poly Lactic Acid ◽  
Moisture Resistance ◽  
Hammer Mill ◽  
Total Surface Energy ◽  
Strength Parameters ◽  
Humidity Resistance ◽  
Plastic Composites ◽  
Two Stages

AbstractIn this study, wood plastic composites (WPC) made of poly(lactic acid) PLA and a bark-filler were manufactured. Two degrees of bark comminution (10–35 mesh and over 35 mesh) and varied content of bark (40, 50 and 60%) were investigated. The studied panels were compared with analogically manufactured HDPE boards. The manufacture of composites involved two stages: at first, WPC granules with the appropriate formulation were produced using the extruder (temperatures in individual extruder sections were 170–180 °C) and crushing using a hammer mill after cooling the extruded composite; secondly, the obtained granulate was used to produce boards with nominal dimensions of 300 × 300 × 2.5 mm3 by flat pressing in a mold, using a single daylight press at a temperature 200 °C. The study proved that comminuted bark can be applied as a filler in PLA composites. However, an increase in bark content decreased mechanical properties (MOR, MOE) and deteriorated humidity resistance (high TS and WA) of the panels. Along with the increase in bark content, an increase in the contact angle of the composite surfaces and a decrease in the total surface energy were noted. It was also found that PLA composites have higher strength parameters and lower moisture resistance compared to HDPE composites with the same bark content. Graphical abstract

A novel mica-based composite with hybrid aramid fibers for electrical insulating applications: largely improved mechanical properties and moisture resistance

2017 ◽  
Vol 67 (2) ◽  
pp. 204-211 ◽  
Author(s):  
Yongsheng Zhao ◽  
Wanbin Dang ◽  
Zhaoqing Lu ◽  
Lamei Wang ◽  
Lianmeng Si ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Moisture Resistance ◽  
Aramid Fibers

Posidonia oceanica leaves for processing of PMDI composite boards

2018 ◽  
Vol 53 (12) ◽  
pp. 1697-1703
Author(s):  
Aldi Kuqo ◽  
Arjan Korpa ◽  
Nikolla Dhamo
Keyword(s):  
Mechanical Properties ◽  
Residence Time ◽  
Building Material ◽  
Posidonia Oceanica ◽  
Additional Cost ◽  
Moisture Resistance ◽  
Furniture Industry ◽  
Swelling Properties ◽  
Marine Plants ◽  
Flexural Tests

Posidonia oceanica leaves (seagrass) are collected almost in all the Mediterranean seashores as spoils and disturbing material with additional cost for removal from the coastline. Seagrass, however, is known for its interesting properties, such as decay, fire and moisture resistance as well as insulation. Research for using this material in composing boards was initiated. This study looks into the possibility of using these waste marine plants for the production of alternative building material in the form of pressed panels. The paper describes the pretreatment of seagrass leaves before their processing for composite boards and the examination of its final product. The residence time for salts desorption was also determined. The main processes analyzed were the binder spraying and panel forming. Mechanical properties were evaluated by the standardized flexural tests. In addition, swelling properties were investigated. Results obtained from testing and observation of boards indicated that seagrass leaves are propitious for the application in construction and furniture industry.

scholarly journals Influence of Furfuryl Alcohol Fiber Pre-Treatment on the Moisture Absorption and Mechanical Properties of Flax Fiber Composites

Fibers ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 59 ◽  
Author(s):  
Yunlong Jia ◽  
Bodo Fiedler
Keyword(s):  
Mechanical Properties ◽  
Furfuryl Alcohol ◽  
Moisture Absorption ◽  
Natural Fiber ◽  
Tensile Tests ◽  
Fiber Composites ◽  
Flax Fiber ◽  
Moisture Resistance ◽  
Structural Applications ◽  
Pre Treatment

Poor moisture resistance of natural fiber reinforced bio-composites is a major concern in structural applications. Many efforts have been devoted to alleviate degradation of bio-composites caused by moisture absorption. Among them, fiber pre-treatment has been proven to be effective. This paper proposes an alternative “green” fiber pretreatment with furfuryl alcohol. Pre-treatments with different parameters were performed and the influence on the mechanical properties of fiber bundles and composites was investigated. Moisture resistance of composites was evaluated by water absorption tests. Mechanical properties of composites with different water contents were analyzed in tensile tests. The results show that furfuryl alcohol pretreatment is a promising method to improve moisture resistance and mechanical properties (e.g., Young’s modulus increases up to 18%) of flax fiber composites.

scholarly journals Compaction Behavior and Mechanical Properties of Uniaxially Pressed Bi-W Composites

2009 ◽  
Vol 40 (9) ◽  
pp. 2124-2136 ◽  
Author(s):  
L. Peter Martin ◽  
Andrea M. Hodge ◽  
Geoffrey H. Campbell
Keyword(s):  
Mechanical Properties ◽  
Compaction Behavior

Effects of annealing on high velocity compaction behavior and mechanical properties of iron-base PM alloy

2016 ◽  
Vol 288 ◽  
pp. 435-440 ◽  
Author(s):  
Hongzhou Zhang ◽  
Lin Zhang ◽  
Guoqiang Dong ◽  
Zhiwei Liu ◽  
Mingli Qin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Velocity ◽  
Iron Base ◽  
Compaction Behavior ◽  
High Velocity Compaction

scholarly journals RESIN MODIFIED GLASS IONOMER CEMENT SEBAGAI MATERIAL ALTERNATIF RESTORASI UNTUK GIGI SULUNG

2014 ◽  
Vol 1 (2) ◽  
pp. 46
Author(s):  
Diana Setya Ningsih
Keyword(s):  
Mechanical Properties ◽  
Primary Teeth ◽  
Glass Ionomer Cement ◽  
Moisture Resistance ◽  
Restorative Material ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
The World ◽  
Paper Review ◽  
Ionomer Cement

Glass ionomer cement (GIC) is a material that can release fluoride to prevent caries especially in primary teeth. One of the developments of glass ionomer cement in the world of pediatry dentistry is resin-modified glass ionomer cement (RMGIC). The resin-modified glass ionomer cement were still maintaining the clinical advantages oforiginal material, such as fluoride realease, good compatibility and aestehetically. The mechanical properties of rmgic is more higher than gic. These materials have a better adhesion, higher moisture resistance, and a longer shelft life. This paper review aims to know the ability RMGIC as alternative restorative material for primary teeth.

Mechanical properties and moisture resistance of PCM with damages

2015 ◽  
pp. 49-55 ◽  
Author(s):  
V.O. Startsev ◽  
◽  
A. Yu. Makhonkov ◽  
E.A. Kotova ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Moisture Resistance
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