Bamboo fiber
-
The effect of maleic anhydride grafted polypropylene (MAPP) on mechanical properties of bamboo fiber mat reinforced polypropylene composites (BMRPC) was studied. The results showed that mechanical properties of the composite depend on the amount of MAPP and those attained maximum values at 6 % MAPP. The effects of bamboo fiber mat contents on mechanical properties were also investigated. Maximum values for the tensile, flexural and impact strengths of BMRPC were obtained at a bamboo fiber mat content 45% (by weight).
8p uocvong01 24-09-2015 132 3 Download
-
This paper presents the result of research on equipment development of vacuum injection molding technique for preparation the chopped bamboo fiber polymer composite and some properties of obtained composite material. For the vacuum injection molding technique, firstly the dry fibers were plated in the mold. Then the mold was closed by the vacuum bag, the air inside the mold was sucked out by a vacuum pump, due to the difference of the pressure in side and outside the mold, the polymer liquid was transferred to the closed mold and impregnated the bamboo fiber.
7p uocvong01 24-09-2015 67 4 Download
-
The preparation and mechanical properties of bamboo - glass fiber mat reinforced polyropylene hybrid composite (BGMRPC) were investigated. The results showed that properies of the composite depend on the amount of glass fiber mat and the hybrid method. Replacing 13.5% of bamboo fiber mat by glass fiber mat, the tensile, flexural and impact strengths of BGMRPC were increased by 33%, 28% and 79% respectively comparing to bamboo fiber mat reinforced polypropylene composite (BMRPC). The moisture absorption of BMRPC and BGMRPC was studied and compared.
7p uocvong01 24-09-2015 44 2 Download
-
This paper present the results of research on designing mold for vacuum infusion technique for preparation the polymer composite material. Specimens of varrious methods of vacuum technique have been prepared and their mechanical and structural properties have been studied. The results show that material obtained from vacuum assisted technique have a preciously mechanical properties, increased in average 45% in comparison with hand lay up method. The scanning electronic microscopy has been used for investigation on void appearance of composite materials.
8p uocvong01 24-09-2015 80 8 Download
-
Cotton bamboo fibers were prepared by mechanical method and their diameter were about 9- 26 µm. Surface composition and morphology of fibers were studied. The analytic result shown that most of hemicellulose and lignin were removed. There is a strong and sharp peak in the untreated bamboo spectra at about 1736 cm-1 corresponding to carbonyl group (C=O), but this peak disappeared in alkaline treated bamboo spectra. Epoxy composites reinforced cotton bamboo fiber have been developed with varying fiber contents.
5p uocvong02 24-09-2015 30 3 Download
-
Cotton bamboo fiber was prepared by steam explosion or mechanical method. Both methods included treated step in NaOH 1 N solution and the treated time was studied. The parameters of cotton fiber have been studied. The results of morphology and mechanical properties showed that the optimum treated time was 2.5 hours for the explosion-cotton fiber and 2 hours for the mechanical-cotton one.
6p uocvong01 24-09-2015 30 3 Download
-
In this study, the air-plasma generated by radio-frequency was used to treat bamboo fiber. The treatment parameters were studied to find the suitable condition. The testing on tensile strength, tensile modulus, module Weibull and elongation to break of the fiber, the measurement of contact angles and the SEM analysis showed that at the high frequency of 12 kHz, power 50 W and treatment time of 5 minutes, after air-plasma treatment the tensile strength and tensile modulus of bamboo fiber increased more than double (101.1% and 101.
5p uocvong01 24-09-2015 26 6 Download
-
The chemical modification of bamboo fiber using acetic anhydride has been investigated. Three characterisation technique, namely FTIR, SEM, and contact angle, were used to elucidate the effect of the chemical treatment on the fibers. Modified bamboo fiber has been used as reinforcement for polypropylene (PP) and maleic anhydride grafted polypropylene resins.
5p uocvong01 24-09-2015 44 3 Download
-
Silane and NaOH were used to treatment bamboo shoot culm sheath fiber. After treatment, the interfacial shear strength of fiber with MAPP increased by 24% and 30% respectively. Alkali treatment has much effect on bamboo shoot culm sheath fiber than silane treatment. Washing NaOH treatment bamboo fiber with acetic acid was improved IFSS of bamboo fiber and polypropylene (PP) and strength of composite PP reinforced by bamboo fiber.
6p uocvong01 24-09-2015 46 3 Download
-
This paper presents the results of the effect content of short bamboo fiber prepared by mechanical method and alkaline treatment on mechanical properties of polymer composites (PC) based on polypropylene (PP). With content of 50% in composition, the tensile, the flexible and impact strengths have been increased as 24%, 23% and 40%, respectively in comparison with original PP. Using the prepared bamboo fiber by steam explosion method in stead of mechanical one, the tensile strength of composite increases 16%, mean while the flexible and impact strength have the equivalent value.
5p uocvong01 24-09-2015 85 9 Download
-
This paper showed the effect of acetylation of bamboo surface by anhydride acetic (AA) on tensile strength of polymer composite (PC) based on polypropylene (PP) reinforced by short bamboo fibers. The best conditions for acetylation is ratio of –OH to AA was 1:3, at the temperature of 100o C within 8 hours. The tensile strength of 50% fibers content’s PC has been increased in comparison with unreinforced PP.
5p uocvong01 24-09-2015 44 3 Download