Please use this identifier to cite or link to this item:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72174
Title: | 混煉製程對於二氧化矽填充橡膠系統的動態機械性質影響:混煉參數與矽烷偶聯劑反應性分析 Effect of mixing process on the dynamic mechanical properties of silica-filled rubber system: mixing parameters and the reactivity of silane coupling agent |
Authors: | Zhao-Hua Zheng 鄭昭華 |
Advisor: | 戴子安(Chi-An Dai) |
Keyword: | 混煉參數,TESPT反應性,胎面性質,小角度X光散射,穿透式電子顯微鏡, tire tread,mixing parameters,reactivity of TESPT,silica filled rubber,SAXS,TEM, |
Publication Year : | 2018 |
Degree: | 碩士 |
Abstract: | 本研究主要探討改變胎面膠(tire tread compound)混煉時之混煉參數例如混煉時間、腔體體積分率和添加順序等因素,對於胎面膠之主要填充物二氧化矽顆粒分散效果的影響以及對輪胎性質之關連。其中輪胎性質主要探討為滾動阻力(rolling resistance),濕地抓地力(wet traction),輪胎剛性(stiffness)以及潘安效應(Payne effect)。再利用超小角度X光散射(USAXS)和穿透式電子顯微鏡(TEM)之量測,分析二氧化矽之分散性質與聚集之多層次之結構(hierarchical structure)。利用測量樣品的Payne effect看二氧化矽間的作用力,並瞭解其顆粒分散狀況。本研究利用兩種混煉機進行混煉實驗,一為小型混煉試驗機,另一為大型混煉機。根據在小型混煉機的參數調控,再應用到大型混煉機上,探討其是否有一致性。並且利用py-GCMS研究二氧化矽顆粒與矽烷偶聯劑(silane coupling agent)的反應程度,並尋找適合的矽烷偶聯劑用量。藉由以上控制混煉參數和測量矽烷偶聯劑未反應程度,希望找到濕地抓地力、滾動阻力和剛性皆有提升的方法。 In this study, the brabender mixing parameters such as mixing time, fill factor, compound adding sequence, their effect on the silica dispersion in rubber formulations and the correlation between the process/structure/property of tire tread compounds were investigated. Typically, there are several important performance parameters for high efficiency green tires, namely low rolling resistance, high wet traction, high stiffness, low wear, and low Payne effect. By using ultra small angle x-ray scattering (USAXS) and transmission electron microscope (TEM) techniques, the dispersion property and the hierarchical structure of silica nanoparticles (from silica primary particles to dimer/trimer/tetramer aggregates, to clusters consisting of assembled aggregates, to the mass fractal of the clusters) were studied. Typically, the Payne effect as measured by dynamic mechanical analysis (DMA) technique can be used to represent the extent of filler-filler interaction in tread compounds. In this study, I used two different brabender mixers; one is a lab-scale brabender and the other is a production-scale banbury mixer located at Cheng Shin Rubber Ind. Co. in Taiwan, the sponsor of the project. py-GCMS technique was also used to study the degree of unreacted TESPT, a silane coupling agent, added in the tire tread compound to improve the silica dispersibility. In addition, an optimum amount of TESPT can be obtained to improve RR, WT, as well as the stiffness of the tread compounds. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72174 |
DOI: | 10.6342/NTU201803798 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 化學工程學系 |
Files in This Item:
File | Size | Format | |
---|---|---|---|
ntu-107-1.pdf Restricted Access | 6.1 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.