发明名称 |
PROCESS FOR MEASUREMENT OF THE DEGREE OF CURE AND PERCENT RESIN OF FIBERGLASS-REINFORCED EPOXY RESIN PREPREG |
摘要 |
The degree of cure and the amount of epoxy resin in a fiberglass reinforced epoxy resin prepreg is measured by exposing the prepreg to a series of light pulses created by optical filters transmitting light at predetermined bandwidths about selected wavelengths, preferably centered at wavenumbers of about 4529 cm<-1> and 4055 cm<-1> and measuring the amount of epoxy groups and methyl groups present relative to reference values from the electrical pulses produced by a phase sensitive photoelectric detector disposed to receive said light pulses after being exposed to said prepreg. When such measurements are made in a continuously moving sheet of prepreg, it is possible to control the variation of percent cure and resin content to no greater than +/-3 % cure and +/-3 % resin content over a distance of at least 400 yds (366m). |
申请公布号 |
EP0701690(B1) |
申请公布日期 |
2001.08.29 |
申请号 |
EP19940919273 |
申请日期 |
1994.05.27 |
申请人 |
ISOLA LAMINATE SYSTEMS CORPORATION |
发明人 |
MOE, AMY, LYNN;KONICEK, JIRI, DANIEL |
分类号 |
C08G59/18;C08J5/24;G01N21/31;G01N21/35;G01N33/44;(IPC1-7):G01N21/35;G01N21/86 |
主分类号 |
C08G59/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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