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Preparation and Characterization of PPTA Enhanced Stab-resistant Electric Bicycle Tire Buffer Layer Material

Author: WangXiangYa
Tutor: DanGuoRong
School: Zhejiang University
Course: Chemical Engineering
Keywords: Electric bicycle tire PPTA Strengthen Buffer layer Uniform design CAD
CLC: TQ336.11
Type: Master's thesis
Year: 2009
Downloads: 52
Quote: 0
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Abstract

In recent years, motor bicycle get a fast development for its advantage of convenient and the green environmental protection. The electric bicycle will become a main tool of transportation gradually after bicycle and motorcycle. The tire is an important part of the electric bicycle that develops immediately and continuously. The electric bicycle tire has already become one of the main products of many tire manufactories, currently. Along with the fast development of the electric bicycle tire, some special function requirement of the electric bicycle tire increase gradually. Bearing to pierce function is an important function requirement. The speed of the electric bicycle requirement is quicker than bicycle, more risk will be when tire is damaged suddenly, resulting in not only the property lose, but also the human body safety. Therefore develop to have higher bear to pierce of electric bicycle tire, have become a market of a request urgently.There are two methods to raise a tire to bear to pierce function in the manufacture process of the tire. One is improving performance of surface tire rubber. Another is increment tire buffer layer of the tire structure. Balanced other aspects, it is very difficult at improving performance of surface tire rubber, so in actually the production line of the tire mainly is increase the buffer layer to raise a tire to bear to pierce function. The tire buffer layer has two types according to the structure dissimilarity: the short fiber strengthens type buffer layer and the buffer layer with the long fiber curtain type. Here, the research and analysis two category types motor bicycle tire buffer layer from structure factor, the making craft factor and the formulation factor etc., are carried out to get can satisfy request of function, economy, and produce efficiency, respectively.In the short fiber enhanced buffer layer making research process, it is emphasized to study to make use of a short fiber of the PPTA to strengthen of the function of the tire buffer layer research. Aspect of the formulation set of the short fiber from the PPTA, the thickness, vulcanized time etc., all this factor influence to the function of the buffer layer and its end tire. Introduce a uniform design method, mathematical modeling and regression analysis in the data deal, and got that the best PPTA amount is 3 sets, the best buffer layer thickness is 1 mm, the best and vulcanized time is 16 minutes. In the making research process of long fiber curtain buffer layer, it is studied to make use of the PPTA curtain type buffer layer, according to structure design, we make sure the best structure that got contented function, economy etc.. Introduce the CAD tools in the process of study, including carry on 3D emulation design and the structure parameter calculation. It does simplify traditional design process.Base on two kinds of making processes of buffer layers and the actual work that combines factory equips to have a condition, two layers PPTA long fiber curtain type buffer layer as motor bicycle tire buffer layers are selected. Made the motor bicycle tire meet performance request, meanwhile its can make use of an existing production equipments well.

Preparation and Characterization of PPTA Enhanced Stab-resistant Electric Bicycle Tire Buffer Layer Material

Abstract

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