In situ pultrusion of vinyl ester/nano-mica matrix composites: Process feasibility and process parameters

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Title:	In situ pultrusion of vinyl ester/nano-mica matrix composites: Process feasibility and process parameters
Authors:	Chiang, CL (Chiang, Chin-Lung) Chen, CH (Chen, Chin-Hsing)
Contributors:	化材系
Keywords:	Pultrusion vinyl ester nano-mica composites
Date:	2016-11
Issue Date:	2017-02-16 09:46:13 (UTC+8)
Abstract:	We conducted a feasibility study on the pultrusion of glass fiber-reinforced vinyl ester/nano-mica matrix composites through a proprietary in situ method. The matrix prepolymer for pultrusion is to be prepared by blends of vinyl ester, initiator (t-butyl perbenzoate), and nano-mica. It is desired to investigate the process feasibility and parameters of the unidirectional glass fiber-reinforced vinyl ester/nano-mica matrix composites through in situ pultrusion. The characteristics of long pot life, high reactivity, and excellent glass fiber wet out of the vinyl ester/nano-mica matrix confirmed its excellent process feasibility for in situ pultrusion. The effects of the optimal process parameters, including die temperature, pulling rate, postcure temperature and time, filler (nano-mica) content, and glass fiber content, were investigated. The optimal die temperature was determined on the basis of a differential scanning calorimetry diagram and conversion of the vinyl ester/nano-mica matrix. The mechanical properties of pultruded composites decreased with increasing pulling rate and increased at a suitable postcure temperature and time. Furthermore, the properties decreased because of the degradation of pultruded composites for a long postcure time. The mechanical properties of pultruded composites achieved maximum values at 2 phr and 75.6vol% corresponding to nano-mica and glass fiber content and then decreased.
Relation:	JOURNAL OF REINFORCED PLASTICS AND COMPOSITES 卷: 35 期:21 頁碼: 1554-1565
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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