Kapok Fiber: Applications

2014 ◽  
pp. 251-266 ◽  
Author(s):  
Yian Zheng ◽  
Aiqin Wang
Keyword(s):  
Kapok Fiber

scholarly journals Adsorption Performance of Human-like Collagen by Alkali-modified Kapok Fiber: A Kinetic, Equilibrium, and Mechanistic Investigation

2021 ◽  
Author(s):  
Liyao Cao ◽  
Hongchang Wang ◽  
Hua Shen ◽  
ruiliu Wang ◽  
Fumei Wang ◽  
...  
Keyword(s):  
Fiber Surface ◽  
Alkali Concentration ◽  
Composition Analysis ◽  
Order Kinetic ◽  
Water Contact ◽  
Kapok Fiber ◽  
Mechanistic Investigation ◽  
Cavity Structure ◽  
Hollow Cavity ◽  
Adsorption Amount

Abstract Collagen-based dressings achieve excellent repair of the skin during metical cosmetology, which has received a lot of attention recently. Although great progress has been made on using biomass fiber as dressing carrier, more research is required on developing novel biomass fibers because of the limitations of (i.e., high cost and complex processing) of existing materials. In this study, the adsorption behaviors of two human-like collagen were studied by examining the Kapok fiber that was modified using alkali consisting of various amounts of the mass fraction. Results show that the alkali-modified Kapok fiber surface becomes rough with vertically arranged grooves, and the cross-section depicts the hollow cavity structure. The composition analysis of alkali modified Kapok shows that alkali dissolves part of the hemicellulose and lignin. Additionally, the surface energy rises sharply and the water contact angle changed from hydrophobic to hydrophilic. The adsorption amount of raw Kapok fiber is around 0.6g/g, which accounts for only one twenty-first of the adsorption amount of alkali-treated Kapok (around 12.6g/g), while the equilibrium adsorption amount was not sensitive to alkali concentration. The kinetics of human-like collagen followed both Quasi first and Quasi second order kinetic model, implying that the adsorption process where characterized by both physisorption and chemisorption. Finally, characterization of the AKF-2 coupled with the studies based on the inter-particle diffusion model showed a three-step of human-like collagen diffusion consisting of surface diffusion, inter-fiber diffusion and fiber' hollow cavity diffusion. Our results demonstrate a perfect high absorption performance of Kapok fiber providing a potential for application of collagen-base dressings.

scholarly journals MODIFICATION AND CHARACTERIZATION OF CEIBA PENTANDRA (L.) GAERTN. (KAPOK) FIBER: PHYSICAL PROPERTIES

2019 ◽  
Vol 7 (7) ◽  
pp. 381-390
Author(s):  
Eduart Wolok ◽  
Idham Halid Lahay ◽  
Buyung R. Machmoed ◽  
Fahriadi Pakaya
Keyword(s):  
Heavy Metals ◽  
Physical Properties ◽  
Protective Layer ◽  
Absorption Capacity ◽  
Natural Material ◽  
Cellulose Content ◽  
Kapok Fiber ◽  
Fiber Properties ◽  
Kapok Fibers

Kapok fiber is a natural material that has unique properties, can be renewed with a large lumen, it has hydrophobic properties, as an absorbent in oil, heavy metals, and sound. To increase the absorption capacity of heavy metals, physical properties, and chemical resistance, modifications were made to change the fiber properties from hydrophobic to hydrophilic. One way is through the process of soaking the kapok fibers in a solvent to remove non-cellulose compounds. In this study, to improve the properties of kapok fiber, soaking has been done with various solutions, there are HCl, NaOH, NaClO, NaClO-NaOH-NaClO, and NaClO2-NaOH-NaClO2 solution. Immersion of kapok fibers in NaClO2-NaOH-NaClO2 solution can increase cellulose content up to 93.69% with porosity content of 4.75%. NaClO2-NaOH-NaClO2-treated can absorb water up to 211.27%, the second highest after treatment with the NaClO-NaOH-NaClO-treated solution of 285.29%. Immersion in NaClO-NaOH-NaClO and NaClO2-NaOH-NaClO2 solvents also causes damage to the kapok fiber protective layer which indicates the loss of lignin, so that a significant change of the hydrophobic fiber becomes hydrophilic as seen in the SEM results.

Development and investigations of kapok fiber based needle punched nonwoven as eco-friendly oil sorbent

2018 ◽  
Vol 17 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Govindarajan Thilagavathi ◽  
Chinnathambi Praba Karan ◽  
Ramamoorthi Thenmozhi
Keyword(s):  
Kapok Fiber ◽  
Oil Sorbent

The wettability and micro-equilibrium of different essence liquids to alkali-treated kapok fiber

2021 ◽  
pp. 004051752110320
Author(s):  
Liyao Cao ◽  
Yanfang Xu ◽  
Kaifang Xie ◽  
Fumei Wang ◽  
Guangbiao Xu
Keyword(s):  
Theoretical Model ◽  
Critical Role ◽  
Error Rates ◽  
Adhesion Energy ◽  
Phase Contact ◽  
Fiber Network ◽  
Kapok Fiber ◽  
Three Phase ◽  
The Difference ◽  
Kapok Fibers

Kapok fiber is a natural hollow fiber that has superior biocompatibility and biodegradability and is naturally antibacterial. Because of its unique properties, it has great potential in the application of postoperative repair dressings. The wettability and micro-equilibrium of kapok fibers play a critical role in dressing applications. In this study, the critical adhesion volume and adhesion energy of essence liquid to alkali-treated kapok fiber (AKF) were quantitatively calculated to explore the wettability and micro-equilibrium through the equilibrium wetting theory. Meanwhile, the three-phase contact line (TCL) structure was described. The results showed that the critical adhesion volumes of the three types of essence liquid for AKF were 3.45, 3.81, and 4.12 μL, respectively. Moreover, the critical volumes and low error rates derived from the equilibrium wetting theory were 3.41 μL and 1.16%, 3.99 μL and 4.51%, and 4.60 μL and 10.43%, respectively. Therefore, the critical volume of adhesion could be well calculated by the theoretical model. The average adhesive energies of essence liquid to the AKF were 0.38, 0.45, and 0.56 J, respectively, caused by the difference in liquids properties. The TCL showed a mechanical lock and bonding points at both ends because of the curvature difference and higher surface energy. These results are proposed to inspire the design of a liquid carrier of kapok fibers based on the fiber network structure.

Study on the Structure and Performances of Kapok Textiles

2012 ◽  
Vol 573-574 ◽  
pp. 167-173
Author(s):  
Li Qin Lou
Keyword(s):  
Cross Section ◽  
Cotton Fiber ◽  
Hollow Structure ◽  
Alkali Resistance ◽  
Kapok Fiber ◽  
Dyeing Property ◽  
Weave Structure ◽  
Colored Cotton ◽  
White Cotton ◽  
Warmth Retention

Kapok fiber has many excellent Performances. the surface and cross section of the kapok fiber were observed. These performances of the distribution of length and fineness, moisture regain, acid and alkali properties, and dyeing property were tested and compared for the kapok fiber, colored cotton fiber and white cotton fiber. The fabrics of same weave structure paramater were developed and the warmth retention property wewe tested. The results show that the surface of the kapok fiber is smooth，Cross section of the kapok fiber is round with hollow-structure. The length and fineness of the kapok fiber was lower than white cotton fiber and colored cotton fiber. The hygroscopicity and moisture guide properties of the kapok fiber was better than white cotton fiber and colored cotton fiber, the dyeing property of the kapok fiber was worse than white cotton fiber, the kapok fiber is alkali-resistance and non acid-resistant. The fabrics of the kapok fiber has better warmth retention property.

Study on Java Kapok Fruit and Fiber Length

2011 ◽  
Vol 332-334 ◽  
pp. 112-115
Author(s):  
Hong Yan Wu ◽  
Fu Mei Wang ◽  
Feng Tan
Keyword(s):  
Internal Structure ◽  
Strong Correlation ◽  
Fiber Bundle ◽  
Fiber Length ◽  
Bundle Method ◽  
Kapok Fiber ◽  
Effective Utilization ◽  
Significant Difference ◽  
Staple Length

The study focused on structure and fiber length of Java kapok fruit from Pate County, Java Tengah in Indonesia for effective utilization. The internal structure of Java kapok fruit can be divided into two parts: fiber bundle and combination of short staple and seeds. The two parts had little adhesion and large difference in fiber length. Fiber bundle method was put forward to measure fiber length, which had strong correlation with Hand-measured staple length. Furthermore, analysis showed the length of kapok fiber had some correlation with length of fruit, and no correlation with length of middle perimeter. Also, the three parts of fruit: head, middle and tail had no significant difference in fiber length.

The Adsorption Character of Kapok Fiber and Reactive Dyeing Technology on Modified Kapok Fiber

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Ying Ding ◽  
Zaisheng Cai ◽  
Liming Wang ◽  
Yong Shen ◽  
Qunyan Gao
Keyword(s):  
Reactive Dyes ◽  
Reactive Dye ◽  
Dye Uptake ◽  
Direct Dyes ◽  
Kapok Fiber ◽  
Reactive Dyeing ◽  
Wash Fastness ◽  
Fixation Ratio

The adsorption character of kapok fiber with direct dyes and the dyeing technology of cationic modified kapok fiber with reactive dyes were studied in this article. The results indicate that the optimal dyeing technique parameters for the cationic modified kapok fiber with the reactive dye Cibacron FN-R include 0.5~1% (o.w.f) of dyes, 15~20g·L-1 of NaCl, and 2g·L-1 of JFC with bath ratio of 1:50 at a dyeing temperature of 40°C for 30min. The dyed kapok fiber was fixed with 15~20g·L-1 of Na2CO3 for 60min. As a result, the dye-uptake, fixation ratio, wash fastness, friction fastness, and K/S of cationic modified kapok fabric were enhanced by above technique.

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