Effect of blowing agent concentration of ultra‐low density <scp>NBR</scp>/<scp>PVC</scp> composite foams on compressive behavior and energy‐absorption characteristics

Lu, Tianyun; Li, Jianxing; Han, Xiaokun; Liu, Ruiyin; Cai, Chencan; Wang, He

doi:10.1002/vnl.21915

Cited by 7 publications

(2 citation statements)

References 30 publications

(40 reference statements)

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“…Foam is characterized by light weight, good energy absorption, and excellent impact resistance. [17][18][19] Epoxy foam-filled threedimensional woven spacer fiberglass/epoxy composites exhibit higher flexural strength and excellent bending stiffness compared to unfilled. 20 Foam filling can effectively increase the peak load, average load, crushing rate efficiency and overall energy absorption of the structure, but the increase in mass will lead to a decrease in the specific energy absorption.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, a lightweight material is needed to reinforce, the foam is a better choice. Foam is characterized by light weight, good energy absorption, and excellent impact resistance 17–19 . Epoxy foam‐filled three‐dimensional woven spacer fiberglass/epoxy composites exhibit higher flexural strength and excellent bending stiffness compared to unfilled 20 .…”

Section: Introductionmentioning

confidence: 99%

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Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Wang,

Bai,

Yan

et al. 2023

Polymer Composites

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The woven lattice truss sandwich panels (WLTSPs) have been studied much, and this article proposes a new structure (curved woven lattice truss sandwich [CWLTS] panels). CWLTS were designed, made, and tested. The foam‐filling technique was applied to strengthen the CWLTS. Curving and foam‐filling effects to the deformation, damage, failure, and energy absorption under cylindrical and plated loadings were revealed by three‐point bending experiments. Under cylindrical loading, foam‐filling can effectively increase the load capacity, especially the CWLTS‐A. The load‐bearing capacity of the plated loading is greater than that of the cylindrical loading, and the phenomenon is significantly improved after foam filling, except for the central angle of 60° and the CWLTS‐A of 44.05°. Foam‐filling changes failure from core‐shearing to face fracture. For foam‐filled panels, the change in loading pattern results in energy absorption increase of 2.45 times for CWLTS‐B and 2.86 times for CWLTS‐A. Plated loading approximately doubles the peak load and energy absorption with two plastic hinges. The effect of foam filling on the mean crush force of the CWLTS plated loading is greater. The mechanical and energy absorption properties of the CWLTS can be improved by changing the loading mode and using foam filling, effectively increasing the applicability.Highlights Curved woven lattice truss sandwich panels were designed, made, and tested. Foam‐filling method greatly improves the bearing capacity of the CWLTS panels. Plated loading much increases the bearing capacity and energy absorption. The impact of curvature on mechanical performances is not immediately apparent.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Wang,

Bai,

Yan

et al. 2023

Polymer Composites

Self Cite

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Effects of decabromodiphenyl ethane flame retardant on the combustion behavior and physical‐mechanical properties of chloroprene rubber: Experimental and molecular dynamic simulation

Han

et al. 2022

Vinyl Additive Technology

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Herein, a molecular dynamics simulation method was used to predict the compatibility of chloroprene rubber (CR) and decabromodiphenyl ethane (DBDPE) and to investigate the mechanical properties of CR-based composites. The limiting oxygen index and cone calorimeter measurement values indicated that the addition of DBDPE was beneficial for reducing the peak heat release rate during combustion and facilitating the formation of compact and strong char layers for carbon black-filled CR composites, resulting in efficient reduction of flammability and fire risk. Incorporation of DBDPE obviously delayed the dehydrochlorination of the CR matrix. Moreover, adding 50 phr DBDPE had little effect on the tensile strength and elongation at the break, and increased the modulus at 100% elongation by 64.3% in contrast to CR without DBDPE. However, the cold properties of CR vulcanizates decreased slightly with an increase in the DBDPE content.

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Energy-absorbing porous materials: Bioinspired architecture and fabrication

Zhao,

Li,

Chen

et al. 2023

Nano Res.

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Effect of blowing agent concentration of ultra‐low density NBR/PVC composite foams on compressive behavior and energy‐absorption characteristics

Cited by 7 publications

References 30 publications

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Effects of decabromodiphenyl ethane flame retardant on the combustion behavior and physical‐mechanical properties of chloroprene rubber: Experimental and molecular dynamic simulation

Energy-absorbing porous materials: Bioinspired architecture and fabrication

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