Influences of different imidization conditions on polyimide fiber properties and structure

2021 ◽  
pp. 51189
Author(s):  
Ziqi Wang ◽  
Junying Zhang ◽  
Hongqing Niu ◽  
Dezhen Wu ◽  
Mengying Zhang ◽  
...  
Keyword(s):  
Fiber Properties ◽  
Polyimide Fiber

Effect of Fertilizer Treatments on the Fiber Properties of Cotton 1

1965 ◽  
Vol 57 (2) ◽  
pp. 227-227 ◽  
Author(s):  
Jay C. Murray ◽  
Robert M. Reed ◽  
Ed S. Oswalt
Keyword(s):  
Fiber Properties

Genetic Gain in Fiber Properties of Upland Cotton under Varying Plant Densities

Crop Science ◽  
2008 ◽  
Vol 48 (4) ◽  
pp. 1321-1327 ◽  
Author(s):  
Brian M. Schwartz ◽  
C. Wayne Smith
Keyword(s):  
Genetic Gain ◽  
Upland Cotton ◽  
Fiber Properties ◽  
Plant Densities

scholarly journals Non-Wood Fibers: Relationships of Fiber Properties with Pulp Properties

ACS Omega ◽  
2021 ◽  
Author(s):  
Taslima Ferdous ◽  
Yonghao Ni ◽  
Mohammad Abdul Quaiyyum ◽  
Mohammad Nashir Uddin ◽  
Md Sarwar Jahan
Keyword(s):  
Wood Fibers ◽  
Fiber Properties ◽  
Pulp Properties

scholarly journals Effects of Microwave Treatment in Immersed Conditions on the Mechanical Properties of Jute Yarn

Fibers ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 40
Author(s):  
Felicia Syrén ◽  
Joel Peterson ◽  
Nawar Kadi
Keyword(s):  
Mechanical Properties ◽  
Tensile Testing ◽  
Glass Fibers ◽  
Microwave Treatment ◽  
Environmental Benefits ◽  
Treatment Result ◽  
Bast Fiber ◽  
Fiber Properties ◽  
Yarn Thickness ◽  
Jute Yarn

The versatile bast fiber jute has environmental benefits compared to glass fibers. However, for jute to be used in a composite, the fiber properties need to be altered. This study aims to improve the mechanical properties of jute yarn to make it more suitable for technical applications as a composite. To alter its mechanical properties, jute yarn was immersed in water during microwave treatment. The time and power of the microwave settings differed between runs. Two states of the yarn were tested: fastened and un-fastened. Tensile testing was used at the yarn and fiber level, followed by Fourier-transform infrared spectroscopy (FTIR) and microscopy. The treatment result demonstrated the ability to increase the elongation of the jute yarn by 70%. The tenacity was also increased by 34% in the fastened state and 20% in the un-fastened state. FTIR showed that no change in the molecular structure occurred. The treatments resulted in a change of yarn thickness depending on the state of the yarn. The results indicate that microwave treatment can be used to make jute more suitable for technical applications depending on the microwave treatment parameters.

scholarly journals Enhanced Impact Properties of Hybrid Composites Reinforced by Carbon Fiber and Polyimide Fiber

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2599
Author(s):  
Boyao Wang ◽  
Bin He ◽  
Zhanwen Wang ◽  
Shengli Qi ◽  
Daijun Zhang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Failure Modes ◽  
Flexural Modulus ◽  
Charpy Impact ◽  
Fiber Reinforced Composites ◽  
Stacking Sequence ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Hybrid Fiber ◽  
Polyimide Fiber

A series of hybrid fiber-reinforced composites were prepared with polyimide fiber and carbon fiber as the reinforcement and epoxy resin as the matrix. The influence of stacking sequence on the Charpy impact and flexural properties of the composites as well as the failure modes were studied. The results showed that hybrid fiber-reinforced composites yielded nearly 50% increment in Charpy impact strength compared with the ones reinforced by carbon fiber. The flexural performance was significantly improved compared with those reinforced solely by polyimide fibers and was greatly affected by the stacking sequence. The specimens with compressive sides distributed with carbon fiber possessed higher flexural strength, while those holding a sandwich-like structure with carbon fiber filling between the outer layers displayed a higher flexural modulus.

scholarly journals Influences of Stabilizers on Lyocell Spinning Dope and Fiber Properties

2021 ◽  
pp. 107228
Author(s):  
Gesheng Yang ◽  
Yanju Yang ◽  
Huihui Zhang ◽  
Huili Shao
Keyword(s):  
Fiber Properties
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