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Pankaj Rana, Dharmpal Deepak MECHANICAL PROPERTIES OF ABACA FIBER BASED REINFORCED POLYURETHANE COMPOSITE

Natural Fiber Based Polymer Composites

Technik
Englisch
8932 Wörter
Ab 12 Jahren
121
1

From last few decades’ composite materials, ceramics and plastics has made a mark in the field of materials. Applications of these materials in engineering arespecially attributed to their low specific weight and comparatively high strength. Applications of composite materials vary from the basic daily needs to sophisticated luxury applications. The demand of natural fiber in the composite materials has been increased owing to low density, low cost and biodegradable properties of natural fiber.But at the same time the natural fibers has certain disadvantages viz. they are hydrophilic in nature due to which there is poor incompatibility of natural fiber with the matrix. This intensity of this disadvantage can be reduced with the help of chemical treatment of natural fibers. Natural fiber has tendency of water absorption, which can also be reduced with chemical treatment. There are number of factors which affect the properties of natural fiber reinforced composite viz. fabrication method, environment condition during fabrication, fiber and its quantity, matrix material. Any slight modification in the above said variables leads to change in the properties of the final composite material. In the present work, the tensile and flexural properties of natural fiber (abaca fiber) reinforced TPU composites have been investigated. The content of natural fiber in composites has been varied from 0 to 30 wt%. The reinforced fibers were chemically treated with NaOH followed by treatment with maleic anhydride in acetone, prior to fabricating of samples by injection moulding. It is observed that the composite containing 10 wt% of abaca fiber has highest tensile strength among all the composites fabricated for this study, whereas the tensile strength of pure TPU sample has maximum among all the samples fabricated during this research work.Maximum flexural strength is observed ofthe composite containing 30 wt% of abaca fiber.SEM examinations of the fractured surface reveal that primary failure mechanisms in composite as fiber fracture and fiber pull-out. [mehr]

Stichwörter: Natural Fiber, Polyurethrane, Composite, Mechanical Testing

3,99 US$

Mulayam Singh ROUTING INFORMATION PROTOCOL

RIP DYNAMIC ROUTING LAB CONFIGURATION

Technik
Englisch
6296 Wörter
Keine Altersempfehlung
340
1

RIP stands for Routing Information Protocol that is an old distance vector routing protocol. It permits the usage of maximum 15 routers for hop count as it is distance vector. RIP has 2 versions. First syncs with full updates every 30 seconds by using doing broadcast. Fews updates and brought about are performed by using 2nd version by the usage of multicast. If we evaluate different routing protocols like OSPF, EIGRP and IS-IS. RIP is quite slow protocol. Because of this, RIP is now not used generally by using networking administrations however its understanding is very important if your beginner in the networking field. In this lesson, we will study basic and advance topics of Routing Information Protocols. [mehr]

Stichwörter: RIP, Routing Information Protocol, Distance Vector Routing Protocol, Redistribution between OSPF and RIP, Default Route with IP SLA, IP SLA, Configuring Off-set List on Router, Offset-list, Troubleshooting RIP interfaces, RIP Passive Interface Issue, RIP Version Mismatch., RIP Hop Count Problems, RIP Authentication Issue, RIP Filtering problems, RIP Timers Debug, Router Summarization, cisco packet tracer, GNS3, Network labs, Routing, Network protocols, Eigrp, DHCP, Telnet, Router, Switch, PC, Strait throgh cable, Roll over cable, Console cable, Troubleshooting, Port, Ethernet, Fiber, Fiber optic cable, copper cable, OSPF, Distance vector protocal, link state protocol [mehr][weniger]

0,99 US$

Lyster H. Dewey , Jason L. Merrill Hemp Hurds

Paper-Making Material

Belletristik
Englisch
13712 Wörter
Ab 18 Jahren
2
0

HEMP HURDS AS PAPER-MAKING MATERIAL. By LYSTER H. DEWEY, _Botanist in Charge of Fiber-Plant Investigations_, and JASON L. MERRILL, _Paper-Plant [mehr]

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Lyster H. Dewey , Jason L. Merrill Hemp Hurds as Paper-Making Material

United States Department of Agriculture, Bulletin No. 404

Belletristik
Englisch
10769 Wörter
Ab 18 Jahren
2
0

The woody inner portion of the hemp stalk, broken into pieces and separated from the fiber in the processes of breaking and scutching, is called hemp hurds. These hurds correspond to shives in flax, but are much coarser and are usually softer in texture. The hemp stalk grown in a broadcast crop for fiber production is from one-eighth to three-eighths of an inch in diameter and from 4 to 10 feet tall. [mehr]

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sunnie Rimmer Not so lonly any more

Belletristik
Englisch
2835 Wörter
Keine Altersempfehlung
700
12

Suddenly every fiber of my body screams at me' run for your life!', but I cant move.My legs [mehr]

Stichwörter: vampires, shape shifters, witches

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