Open Access
Articles
Article ID: 161
by hong-hong Lu
Composite Materials Research, Vol.6, No.1, 2024; 156 Views, 5 PDF Downloads
With specific surface area, high adsorption capacity, low cost, and strong stability, Biochar has been widely applie D to improve soil quality, increase soil carbon sequestration, remediate polluted environment, and reduce soil emissions of greenhouse gases. Recently, efforts have been made to enhance the adsorption capacity of biochar by preparing biochar-based composites with New properties and new structure via combining biochar with the other materials physico-chemically. This review summarized the preparation, characterization, and applications of Biochar and biochar-based. The adsorption behavior and remediation mechanisms of biochar and its composites in soil and water environment were ssed in details. Key points and directions on Biochar Composites were proposed.
Open Access
Articles
Article ID: 176
by Ying chang
Composite Materials Research, Vol.6, No.1, 2024; 221 Views, 4 PDF Downloads
Graphene is a new two-dimensional nano-layer carbon material,has extremely high mechanical strength,E-Migration,thermal conductivity and unique chemistrystructure,The functional modification of polyurethane as a filler can effectively improve the mechanical properties of the matrix.,,conducting a conductive,Electromagnetic Shielding performance,therefore becomes nearA major hotspot in composite materials research over the years.inThis paper, the modification of graphene and its research progress in polyurethane materials are reviewed,to compoundMaterial Preparation methods,Performance Research classification,on composite materials common stretch,compressionthe,Thermal Model establishment method is summarized,Outlook on the stonegraphene/Challenges and opportunities for the industrialization of polyurethane composites.
Open Access
Articles
Article ID: 180
by zhipeng Zhou
Composite Materials Research, Vol.6, No.1, 2024; 187 Views, 4 PDF Downloads
lignin is produced by melting blending and injection molding / Polylactic acid composites , and through the differential scanning calorimetry analysis ,Mechanical Performance Test , Vicat Softening Point temperature measurement , scanning electron microscope , The effects of lignin content on the structure and properties of composites are studied by means of water absorption tests . The result shows that , lignin / polylactic acid The crystallinity of the composites decreases first and then increases with lignin content . as the lignin content increases , composite tensile strength decreases , Impact Strength render first increase and then decrease the trend , modulus of elasticity increasing . when lignin content is 5%~10% when , Composite has relatively good overall mechanical properties . Add a small amount of lignin to help improve the wood quality / The fiber-softening temperature of polylactic acid composites . as lignin increases , Initial contact angle of composites increase , that's hydrophilic drop . But after immersion, the water absorption of the composite increases with the lignin content. ,-- absorbent can improve .
Open Access
Articles
Article ID: 202
by fang Wang
Composite Materials Research, Vol.6, No.1, 2024; 164 Views, 9 PDF Downloads
With the enzymatic hydrolysis lignin (EHL) as the raw materials , And the phenol-sulfuric acid method Was used to modify EHL. Under alkaline conditions,lignin-epoxy resin (L - EP) was Synthesized by phenolated lignin (PL) reacted with Epichlorohydrin (ECH). The structure of EHL and its modification and the synthetic resin were by FT-ir. The effects of factor reaction conditions on the process of phenolation were dis cussed. Â The results indicate that the effect of modification s the best under the condition of 3. 0 h, 95 C and 4 ml/g h2so4 (2 MOL/L), and thecontent of phenolic hydroxyl group reaches 4 632 , which increases by 42% compared with EHL. The effects of different L - EP adding amount on the mechanical properties and thermal properties of L-</b3 1>ep/epoxy E-51 Composites were investigated. The results show this tensile strength of L - ep/epoxy E-51 Composites is the best when amount of L-EP I s 5 %,which increases by % The compared with the pure E-51 epoxy resin. withthe Increase Intheamountofl-ep,thermal stability of L- ep/e-51 composites s enhanced. The Non-sothermal method is used to analyze the curing kinetics of epoxy E-51 and L-ep/e-51 compos</b32 >ites. The results reveal that L-EP has a certain effect on the curing of L-ep/epoxy resin Composites.</b20 >
Open Access
Articles
Article ID: 183
by yuafei Han
Composite Materials Research, Vol.6, No.1, 2024; 158 Views, 15 PDF Downloads
particle reinforced chin matrix composites is an important lightweight structure - Functional Integration Material . in aerospace , space technology , Weapon equipment , can source and environmental situation increasingly grim today , This lightweight , High-strength , heat-resistant particulate reinforced Chin matrix composites are aerospace technology , Energy Development and transportation Irreplaceable key materials in several key areas, such as . from composite material preparation technology , Matrix and enhanced body selection , Enhanced body distribution design , configuration Design , hot deformation , superplastic processing , Heat Treatment ,Micro-organization , mechanical properties and engineering applications A review of the development of particle reinforced chin matrix composites , presents problems in research and potential future research directions , For the further promotion and solution of major engineering composite material components processing , Precision to Manufacturing key technologies and equipment guidance , to Promote further development of non-continuous particle reinforced chin matrix composites
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