Properties of henequen cellulosic fibers

Aguilar‐Vega, Manuel; Cruz‐Ramos, C. A.

doi:10.1002/app.1995.070561007

Cited by 33 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A small weight loss of about 8–12% at 20–100 °C was assigned to the release of moisture from the samples. Membrane RC shows two steps of active weight loss with elevating temperature, similar to henequen cellulose and commercial cotton cellulose 40. The greatest weight loss was found in the temperature range of 300–400 °C for membrane RC and the RC/AL blends, which is attributed to the onset of cellulose decomposition.…”

Section: Resultsmentioning

confidence: 75%

Structure and properties of blend membranes prepared from cellulose and alginate in NaOH/urea aqueous solution

Zhou

Zhang

2001

J. Polym. Sci. B Polym. Phys.

View full text Add to dashboard Cite

Regenerated cellulose (RC)/alginic acid (AL) blend membranes were satisfactorily prepared from 6 wt % NaOH/4 wt % urea aqueous solution by coagulating with 5 wt % CaCl2 aqueous solution, and then treated with 3 wt % HCl. Morphology, crystallinity, mechanical properties, and thermal stability of the membranes were investigated by scanning electron microscopy (SEM), IR and UV spectroscopes, X‐ray diffraction, tensile tests, and thermogravimetric analysis (TGA). The RC/AL blends were miscible in all weight ratios of cellulose to alginate. The membranes have homogeneous mesh structures, and the mesh sizes of the blend membranes (200–2000 nm) significantly increased with increasing alginate content. The crystalline state of the AL membrane prepared from 6 wt % NaOH/4 wt % urea aqueous solution was broken completely, and the crystallinity of the blend membranes decreased with an increase of AL. Comparing with AL membranes, the tensile strength and breaking elongation of the blend membranes were obviously improved in dry and wet states. Therefore, the RC/AL blends offer a promising way of alginate as separate and functional materials used in the wet state. © 2001 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 39: 451–458, 2001

show abstract

Section: Resultsmentioning

confidence: 75%

Structure and properties of blend membranes prepared from cellulose and alginate in NaOH/urea aqueous solution

Zhou

Zhang

2001

J. Polym. Sci. B Polym. Phys.

View full text Add to dashboard Cite

show abstract

“…After lamination, test coupons type IV were cut according to ASTM-D638-82a method. 20 Low-density polyethylene, LDPE, was obtained from PEMEX (20020) The conditions for the cellulosic fi-Iosipescu shear test samples were cut following the dimensions shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Effect of fiber treatment on the mechanical properties of LDPE‐henequen cellulosic fiber composites

Herrera‐Franco

Aguilar‐Vega

1997

J of Applied Polymer Sci

View full text Add to dashboard Cite

The degree of mechanical reinforcement that could be obtained by the introduction of henequen cellulosic fibers in a low-density polyethylene, LDPE, matrix was assessed experimentally. Composite materials of LDPE-henequen cellulosic fibers were prepared by mechanical mixing. The concentration of randomly oriented fibers in the composite ranged between 0 and 30% by volume. The tensile strength of these composite materials increased up to 50% compared to that of LDPE. There is also a noticeable increase in Young's modulus for the composite materials that compares favorably with that of LDPE. As expected, the addition of the fibers decreases the ultimate strain values for the composite materials. The thermal behavior of the LDPEhenequen cellulosic fibers materials, studied by differential scanning calorimetry, DSC, showed that the presence of the fibers does not affect the thermal behavior of the LDPE matrix; thus, the interaction between fiber and matrix is probably not very intimate. Preimpregnation of the cellulosic fibers in a LDPE-xylene solution and the use of a silane coupling agent results in a small increment in the mechanical properties of the composites, which is attributed to an improvement in the interface between the fibers and the matrix. The shear properties of the composites also increased with increasing fiber content and fiber surface treatment. It was also noted that the fiber surface treatment improves fiber dispersion in the matrix.

show abstract

“…Extensive research has been undertaken during the last few decades to evaluate the possibility of using natural fibers, such as hemp, kenaf, coir, jute, sisal, broom, and ramie, as an alternative to the synthetic counterparts with both thermosetting and thermoplastic matrices 1–15. Merits and faults of the composites prepared from natural ligno‐cellulosic fibers have been recognized and well documented in these papers, only a few of which are listed.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of jute fibers and interface strength with an epoxy resin

Tripathy

Landro

Fontanelli³

et al. 2000

J. Appl. Polym. Sci.

View full text Add to dashboard Cite

Four different forms of jute fibers, namely untreated jute filament (UJF), sliver jute filament (SJF), bleached jute filament (BJF), and mercerized jute filament (MJF), have been subjected to tensile strength analysis following Weibull's theory. The MJF and BJF were obtained by the chemical modification of the UJF. A minimum of 50 fibers of each type, at three different gauge lengths, i.e., 15, 30, and 50 mm, were used to study the strength distribution and the effect of gauge length. The mean fiber strength was found to be the maximum for UJF followed, in the order, by BJF, MJF, and SJF (ϳ 700, ϳ 660, ϳ 580, and ϳ 540 MPa, respectively, at 50-mm gauge length). The strength was also found to decrease with an increase in gauge length. In all cases, good agreement was found with Weibull's statistical model. Single fiber composite tests, with an epoxy resin as the matrix, were carried out determine the critical fragment lengths and interfacial strength, following the Kelly-Tyson approach. The BJF was found to have the maximum interfacial adhesion ( Ϸ 140 MPa) followed by UJF, SJF, and MJF having values of ϳ 83, ϳ 57, and ϳ 47 MPa, respectively. Scanning electron microscope pictures showed the fiber surface was physically modified by the various treatments.

show abstract

Properties of henequen cellulosic fibers

Cited by 33 publications

References 20 publications

Structure and properties of blend membranes prepared from cellulose and alginate in NaOH/urea aqueous solution

Structure and properties of blend membranes prepared from cellulose and alginate in NaOH/urea aqueous solution

Effect of fiber treatment on the mechanical properties of LDPE‐henequen cellulosic fiber composites

Mechanical properties of jute fibers and interface strength with an epoxy resin

Contact Info

Product

Resources

About