The effect of resin soluble binder on mold filling with preforms

Douglas Backes, K. Jayaraman, C. A. Petty

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a study of the effects of a resin soluble thermoplastic preform binder on the Resin Transfer Molding (RTM) process. The focus of the study is the rate of dissolution of the binder in the resin and the associated viscosity changes in the resin. Tests on the rate of binder dissolution from continuous strand glass mats show that after one minute of exposure to styrene, roughly half of the medium solubility binder from Unifilo 750 will dissolve and all of the high solubility binder from Unifilo 101 will dissolve. As the concentration of binder in the resin increases from 0 to 5 wt. percent, the viscosity of a vinyl ester resin increases from 125 cps to 280 cps. The viscosity of the resin has also been monitored in continuous flow experiments through the mats placed in a rectangular plague mold, at different flowrates. In these runs, the viscosity varied from 245 mPa-s to 145 mPa-s when the fill time was 2.2 minutes. The viscosity varied less - from 187 mPa-s to 145 mPa-s - when the fill time was 1 minute. The binder dissolution time is much less than the gel time of Derakane (10-20 minutes) and therefore is a major factor in the mold filling process.

LanguageEnglish (US)
Title of host publicationSAE Technical Papers
DOIs
StatePublished - 1993
EventInternational Congress and Exposition - Dearborn, MI, United States
Duration: Mar 1 1993Mar 5 1993

Other

OtherInternational Congress and Exposition
CountryUnited States
CityDearborn, MI
Period3/1/933/5/93

Profile

Binders
Resins
Viscosity
Dissolution
Solubility
Resin transfer molding
Thermoplastics
Styrene
Esters
Gels
Glass
Experiments

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

The effect of resin soluble binder on mold filling with preforms. / Backes, Douglas; Jayaraman, K.; Petty, C. A.

SAE Technical Papers. 1993.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Backes, D, Jayaraman, K & Petty, CA 1993, The effect of resin soluble binder on mold filling with preforms. in SAE Technical Papers. International Congress and Exposition, Dearborn, MI, United States, 3/1/93. DOI: 10.4271/930175
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