CN103529070A - On-line epoxy resin curing degree monitoring system and method for monitoring curing degree of epoxy resin by adopting system - Google Patents
On-line epoxy resin curing degree monitoring system and method for monitoring curing degree of epoxy resin by adopting system Download PDFInfo
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- CN103529070A CN103529070A CN201310511395.7A CN201310511395A CN103529070A CN 103529070 A CN103529070 A CN 103529070A CN 201310511395 A CN201310511395 A CN 201310511395A CN 103529070 A CN103529070 A CN 103529070A
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Abstract
The invention discloses an on-line epoxy resin curing degree monitoring system and a method for monitoring the curing degree of epoxy resin by adopting the system, belongs to the field of macromolecular material detection and in particular relates to a system and a method for monitoring the curing degree of the epoxy resin. According to the system and the method, the problem that the curing degree of the epoxy resin is low because an existing epoxy resin curing monitoring method cannot be used for monitoring and controlling a curing process of the epoxy resin in real time and on line is solved. The system comprises a piezoelectric source circuit, an electrothermal blowing drying box, a signal acquisition circuit, a liquid crystal display circuit, a singlechip circuit, an intelligent PID (proportion integration differentiation) temperature controller, a communication interface circuit and a keyboard circuit, wherein a power signal output electrode of a high-voltage power circuit is inserted into the epoxy resin to be monitored; a probe of the signal acquisition circuit is inserted into the epoxy resin to be monitored; the keyboard circuit is used for setting temperature of the electrothermal blowing drying box; the liquid crystal display circuit is used for displaying the curing degree of the epoxy resin to be monitored. The on-line epoxy resin curing degree monitoring system and the method are suitable for monitoring the curing degree of the epoxy resin.
Description
Technical field
The invention belongs to field of polymer material detection, be specifically related to a kind of supervisory system of epoxy resin cure degree.
Background technology
The production of epoxy resin mainly concentrates on U.S., day, area, three, Europe.World epoxy resin produces mainly that large giant is monopolized by shell, dow, ciba tri-, and the Japanese and many companies of Korea S also occupy a tiny space in world's epoxy industry with its advanced production technology in addition.And single, the relative scale of production trade mark kind of China's epoxy resin is less, equipment falls behind, resin quality is lower, is faced with shell, dow, ciba and Japanese a few company always the infiltration of Chinese epoxy consumption market is seized to brought baptism.
The curing of epoxy resin is a very complicated process, and what in solidification process, first see is the variation in physical property, but these variations are in fact the presentations of its inner altered chemical structure.Same resin system is when being heating and curing, because the difference of set time, solidification temperature can form the different or even widely different molecular structures of physical and mechanical property.Time is short or temperature is low, and resin cannot be completely curing, and overlong time or excess Temperature cause unnecessary waste, even damage its performance.The method for supervising of existing epoxy resin cure is relatively single, can not realize the solidification process of real time on-line monitoring and control loop epoxy resins completely, and adjusting process parameter in time causes the poor problem of state of cure of epoxy resin.
Summary of the invention
The present invention can not realize the solidification process of real time on-line monitoring and control loop epoxy resins in order to solve the method for supervising of existing epoxy resin cure, causes the poor problem of state of cure of epoxy resin.Propose a kind of epoxy resin cure degree online monitoring system and adopted the method for this system to the monitoring of epoxy resin cure degree.
A kind of epoxy resin cure degree online monitoring system of the present invention, this system comprises high-voltage power circuit, electric drying oven with forced convection, signal acquisition circuit, liquid crystal display circuit, single chip circuit, intelligent PID temperature controller, communication interface circuit and keyboard circuit;
The power supply signal output electrode of high-voltage power circuit is inserted epoxy resin to be measured, the detecting head of signal acquisition circuit inserts epoxy resin to be measured, the measurement data output terminal of signal acquisition circuit connects single chip circuit measurement data input end, the temperature control signals output terminal of single chip circuit connects the temperature control signals output terminal of intelligent PID temperature controller, the temperature detect switch (TDS) signal output part of intelligent PID temperature controller connects the switching signal input end of electric drying oven with forced convection, the display output terminal of single chip circuit connects the display input end of liquid crystal display circuit, keyboard circuit keyboard signal output terminal connects the signalization input end of single chip circuit.
Adopt above-mentioned epoxy resin cure degree online monitoring system to epoxy resin cure degree on-line monitoring method, the concrete steps of the method are:
Step 1, the power supply signal output electrode of high-voltage power circuit is inserted to epoxy resin to be measured, the detecting head of signal acquisition circuit inserts epoxy resin to be measured;
Epoxy resin cure degree online monitoring system of the present invention, by physics, the chemical change situation in each stage in the electric signal Real-Time Monitoring Curing Process of Epoxy gathering, according to the variation of electric signal, constantly adjust the temperature of electric drying oven with forced convection, improve the product quality of epoxy resin cure, realize the harmless on-line monitoring of following the tracks of physical change and chemical change, strengthened reliability and the economy of solidification process.The quality that simultaneously adopts device of the present invention to obtain the product of epoxy resin cure has improved 10% on year-on-year basis with the quality that adopts existing solidification equipment to obtain epoxy resin.
Accompanying drawing explanation
Fig. 1 is the electrical structure schematic block diagram of epoxy resin cure degree online monitoring system of the present invention.
Embodiment
Embodiment one, in conjunction with Fig. 1, present embodiment is described, a kind of epoxy resin cure degree online monitoring system described in present embodiment, this system comprises high-voltage power circuit 1, electric drying oven with forced convection 2, signal acquisition circuit 3, liquid crystal display circuit 4, single chip circuit 5, intelligent PID temperature controller 6, communication interface circuit 7 and keyboard circuit 8;
The power supply signal output electrode of high-voltage power circuit 1 is inserted epoxy resin to be measured, the detecting head of signal acquisition circuit 3 inserts epoxy resin to be measured, the measurement data output terminal of signal acquisition circuit 3 connects single chip circuit 5 measurement data input ends, the temperature control signals output terminal of single chip circuit 5 connects the temperature control signals output terminal of intelligent PID temperature controller 6, the temperature detect switch (TDS) signal output part of intelligent PID temperature controller 6 connects the switching signal input end of electric drying oven with forced convection 2, the display output terminal of single chip circuit 5 connects the display input end of liquid crystal display circuit 4, keyboard circuit 8 keyboard signal output terminals connect the signalization input end of single chip circuit 5.
The present invention is by physics, the chemical change situation in each stage in the electric signal Real-Time Monitoring Curing Process of Epoxy gathering, according to the variation of electric signal, constantly adjust the temperature of electric drying oven with forced convection, improve the product quality of epoxy resin cure, realized and can follow the tracks of the harmless on-line monitoring that physical change can be followed the tracks of again chemical change, strengthened reliability and the economy of solidification process.
Embodiment two, present embodiment are to the further illustrating of a kind of epoxy resin cure degree online monitoring system described in embodiment one, and signal acquisition circuit 3 comprises current sampling circuit 3-1, signal conversion buffer circuit 3-2 and A/D change-over circuit 3-3;
The sampled signal input end of current sampling circuit 3-1 connects the detecting head of signal acquisition circuit 3, current sampling circuit 3-1 sampled signal output terminal connects the input end of analog signal of A/D change-over circuit 3-3 through signal conversion buffer circuit 3-2, the digital signal output end of A/D change-over circuit 3-3 is the measurement data output terminal of signal acquisition circuit 3.
Embodiment three, present embodiment are to the further illustrating of a kind of epoxy resin cure degree online monitoring system described in embodiment one, and single chip circuit 5 adopts the single-chip microcomputer that models are 80c51.
Embodiment four, present embodiment are further illustrating a kind of epoxy resin cure degree online monitoring system described in embodiment one, embodiment two or embodiment three, it also comprises communication interface circuit 7, and the Monitoring Data output terminal of single chip circuit 5 connects the monitor signal input end of communication interface circuit 7.
Embodiment five, employing embodiment are the method to the monitoring of epoxy resin cure degree to a kind of epoxy resin cure degree online monitoring system described in embodiment one, and the concrete steps of the method are:
Step 1, the power supply signal output electrode of high-voltage power circuit 1 is inserted to epoxy resin to be measured, the detecting head of signal acquisition circuit 3 inserts epoxy resin to be measured;
Claims (5)
1. an epoxy resin cure degree online monitoring system, it is characterized in that, this system comprises high-voltage power circuit (1), electric drying oven with forced convection (2), signal acquisition circuit (3), liquid crystal display circuit (4), single chip circuit (5), intelligent PID temperature controller (6), communication interface circuit (7) and keyboard circuit (8);
The power supply signal output electrode of high-voltage power circuit (1) is inserted epoxy resin to be measured, the detecting head of signal acquisition circuit (3) inserts epoxy resin to be measured, the measurement data output terminal of signal acquisition circuit (3) connects single chip circuit (5) measurement data input end, the temperature control signals output terminal of single chip circuit (5) connects the temperature control signals output terminal of intelligent PID temperature controller (6), the temperature detect switch (TDS) signal output part of intelligent PID temperature controller (6) connects the switching signal input end of electric drying oven with forced convection (2), the display output terminal of single chip circuit (5) connects the display input end of liquid crystal display circuit (4), keyboard circuit (8) keyboard signal output terminal connects the signalization input end of single chip circuit (5).
2. a kind of epoxy resin cure degree online monitoring system according to claim 1, is characterized in that, signal acquisition circuit (3) comprises current sampling circuit (3-1), signal conversion buffer circuit (3-2) and A/D change-over circuit (3-3);
The sampled signal input end of current sampling circuit (3-1) connects the detecting head of signal acquisition circuit (3), current sampling circuit (3-1) sampled signal output terminal converts through signal the input end of analog signal that buffer circuit (3-2) connects A/D change-over circuit (3-3), and the digital signal output end of A/D change-over circuit (3-3) is the measurement data output terminal of signal acquisition circuit (3).
3. a kind of epoxy resin cure degree online monitoring system according to claim 1, is characterized in that, single chip circuit (5) adopts the chip microcontroller that model is 80c51.
4. according to a kind of epoxy resin cure degree online monitoring system described in claim 1,2 or 3, it is characterized in that, it also comprises communication interface circuit (7), and the Monitoring Data output terminal of single chip circuit (5) connects the monitor signal input end of communication interface circuit (7).
5. adopt the method for a kind of epoxy resin cure degree online monitoring system claimed in claim 1 to the monitoring of epoxy resin cure degree, it is characterized in that, the concrete steps of the method are:
Step 1, the power supply signal output electrode of high-voltage power circuit (1) is inserted to epoxy resin to be measured, the detecting head of signal acquisition circuit (3) inserts epoxy resin to be measured;
Step 2, opening power contactor, signal acquisition circuit (3) gathers the electric current by epoxy resin;
Step 3, signal acquisition circuit (3) pass to single chip circuit (5) by the current information collecting, single chip circuit (5) is converted into chemical information by the current information receiving, and the state of cure information of epoxy resin to be measured is passed to liquid crystal display circuit (4) shows;
Step 4, keyboard circuit (8) are equipped with the temperature of hot blast drying box by single chip circuit, and intelligent PID temperature controller (6) is according to the switching value of controlling electric drying oven with forced convection (2) that arranges of single chip circuit (5); Realize the online monitoring to epoxy resin cure degree in real time.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849301A (en) * | 2015-05-12 | 2015-08-19 | 东华大学 | Device for measuring gel time of prepregs |
| CN105092537A (en) * | 2014-04-28 | 2015-11-25 | 深圳迈瑞生物医疗电子股份有限公司 | Sample smear coating dryness fraction detection method, apparatus and sample smear drying apparatus |
| CN105136861A (en) * | 2015-06-18 | 2015-12-09 | 沈阳航空航天大学 | Carbon nano paper monitoring method of polymer-based composite material curing process |
| CN105372333A (en) * | 2015-11-09 | 2016-03-02 | 中核(天津)科技发展有限公司 | High-molecular material curing degree nondestructive test method |
| CN110146540A (en) * | 2019-05-27 | 2019-08-20 | 河南大学 | A kind of appraisal procedure for curable type B-stage resin forming processing temperature window |
| CN112649473A (en) * | 2020-11-02 | 2021-04-13 | 湖北三江航天江河化工科技有限公司 | Method for monitoring curing process of lining layer of solid rocket engine |
| TWI734542B (en) * | 2020-06-18 | 2021-07-21 | 大陸商業成科技（成都）有限公司 | Touch device and curing rate detection method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092537A (en) * | 2014-04-28 | 2015-11-25 | 深圳迈瑞生物医疗电子股份有限公司 | Sample smear coating dryness fraction detection method, apparatus and sample smear drying apparatus |
| CN104849301A (en) * | 2015-05-12 | 2015-08-19 | 东华大学 | Device for measuring gel time of prepregs |
| CN105136861A (en) * | 2015-06-18 | 2015-12-09 | 沈阳航空航天大学 | Carbon nano paper monitoring method of polymer-based composite material curing process |
| CN105372333A (en) * | 2015-11-09 | 2016-03-02 | 中核(天津)科技发展有限公司 | High-molecular material curing degree nondestructive test method |
| CN110146540A (en) * | 2019-05-27 | 2019-08-20 | 河南大学 | A kind of appraisal procedure for curable type B-stage resin forming processing temperature window |
| CN110146540B (en) * | 2019-05-27 | 2020-10-20 | 河南大学 | Evaluation method for determining curable B-stage resin molding processing temperature window |
| TWI734542B (en) * | 2020-06-18 | 2021-07-21 | 大陸商業成科技（成都）有限公司 | Touch device and curing rate detection method thereof |
| CN112649473A (en) * | 2020-11-02 | 2021-04-13 | 湖北三江航天江河化工科技有限公司 | Method for monitoring curing process of lining layer of solid rocket engine |
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Application publication date: 20140122 |