CN206497003U - For thermosetting resin and prepreg gel time test equipment - Google Patents

Abstract

One kind is used to be provided with sample test unit, heating unit and temperature measuring unit in thermosetting resin and prepreg gel time test equipment, including case body, the case body；In the top of described case body provided with insulation sliding door；Temperature controller is provided with the side of the case body；Tap hole is provided with the bottom of the case body；Described sample test unit is located above case body interior, and it is divided into two regions, that is thermosetting resin test section and carbon fiber prepreg test section, the thermosetting resin test section is evenly distributed with hole, for the test of thermosetting resin gel time, the upper surface of the carbon fiber prepreg test section is provided with upper push pedal and lower push pedal；Described heating unit is located at below box house.The utility model is easily controlled the amount of test sample, it is ensured that the accuracy and reappearance of test result, and dual-use can be realized again, the service efficiency of instrument is improved.

Description

For thermosetting resin and prepreg gel time test equipment

Technical field

The utility model be related to material survey between test equipment, specifically a kind of designed, designed can be used for thermosetting tree simultaneously Fat and prepreg gel time test equipment.

Background technology

Gel time is high polymer material from the time for softening to gelation appearance, is from viscous liquid to elastic gel Irreversible transformation process.Gel time is critical process time, because after the gel point of material, material is no longer able to flowing, So as to be processed again.So gel time is influence one of resin and the topmost technological parameter of prepreg.

At present, the country has electric hot plate method, rheometer method to thermosetting resin gel method of testing and adopted《Epoxy resin Gel time assay method》Deng.Because GBT12007.7 methods need to be detected by special driving equipment, not only put into Cost is big and is not suitable for high viscosity resins and has the system of filler, using narrow scope, actual using and few.And rheology Instrument method needs the cost put into very high, therefore, is at present hot plate method using more method.

CN102494968A provides the method for testing that a kind of use rotary viscometer tests gelation state, similar to gel Change the operation principle of GT testers, when overcoming using the progress of existing gelation GT testers, caused by being influenceed by human error Test result GRR difference inherent shortcoming.Have the disadvantage the gelation GT that can only test resin, it is impossible to which test is pre- Soak the gelling temp of material.

CN201110437240 provides a kind of gel time analyzer for heat-curable compounds, utilizes synchronous motor Glass stirring rod is driven by torsion guidewire, while using timing circuit timing, gel point, glass stirring are reached in test sample When the rotary speed of rod slows down, top connection sheet metal is connected with lower contact sheet metal, to control circuit transmission electric signal, control electricity Road exports the timing result of timing circuit.The utility model can accurately determine gel time, simple to operate.But it is only applicable to viscosity Relatively low resin, can not equally test the gelling temp of prepreg.

CN201220293951 discloses a kind of device for being used to test epoxy resin gel time and gel exothermic peak, should Need to be placed in certain temperature, humidity environment when device is used, while need by means of its temperature of thermocouple assay, and should Device is also only used for the measure of epoxy resin gel time, it is impossible to be used in the measure of prepreg gel time.

The method of testing of carbon fiber prepreg gel time is referring especially to HB7736.7-2004, and the method described in has Two kinds：Hot candied method and slide plate method, hot candied method are few due to sample size, and hot candied phenomenon is difficult observation, therefore multi-purpose slide plate method.

Either thermosetting resin or prepreg, hot plate method is because equipment is simple, its gel time of test easy to operate All be most widely used, but process of the test is influenceed very big by artificial, as sample number, the speed of agitation, temperature Control accuracy etc., and environment influence etc., can all cause to measure the change of result.In order to ensure test result reappearance, Accuracy, hot plate temperature is uniform, stably, realizes all right and wrong such as thickness and uniformity that the uniformity of sample size, sample be coated with It is often important.

Utility model content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art to be used for thermosetting resin and pre- there is provided one kind Leaching material gel time test equipment, can both be relatively easy to control the amount of test sample, so as to ensure the accurate of test result Property and reappearance, can realize dual-use, improve the service efficiency of instrument again.

Technical solution of the present utility model is as follows：

One kind is used for thermosetting resin and prepreg gel time sensing equipment, including case body, and its feature is：The case Sample test unit, heating unit and temperature measuring unit are provided with body；In the top of described case body provided with insulation sliding door； The side of the case body is provided with temperature controller；Tap hole is provided with the bottom of the case body, the tap hole passes through pipe and position Expansion drum connection above case body exterior；Described sample test unit is located above case body interior, and is divided into two Region, i.e. thermosetting resin test section and carbon fiber prepreg test section, the thermosetting resin test section are evenly distributed with hole, For the test of thermosetting resin gel time, the upper surface of the carbon fiber prepreg test section is pushed away provided with upper push pedal with Plate；Described heating unit is located at below box house, including temperature element, heat conduction carrier and electric calorifie installation, the heating unit Bottom and surrounding be provided with heat-insulation layer；Temperature element is connected with the temperature controller.

Further, the transparent cover that described insulation sliding door is made up of two groups of thermostable transparent lucite is constituted, transparent cover bottom Portion is equipped with pulley, for sliding in orbit.

Further, the thermosetting resin test section is 400mm*400mm smooth square-shaped metal surface, and the carbon is fine Tie up the smooth rectangle metal surface that prepreg test section is 200mm*400mm.

Further, the temperature element is provided with two temperature control points, a live display control, another computer heating control.

The push pedal up and down tested for prepreg is smooth and with handle for surface, and sample is placed when being tested for prepreg With promotion sample, handle is installed in push pedal up and down additional, and lower push pedal is fixed during for testing and upper push pedal is enforced in holding.

Electric calorifie installation is set as basic heating, and temperature control is easy in auxiliary heating, three groups of regulation heating.

Heat conduction carrier according to test temperature select different heating media, such as water or conduction oil, heating unit surrounding and Bottom is provided with heat-insulation layer；

It is that temperature control instrument, power switch are housed on temperature controller, controller front panel on the right side of heating unit.Electrically There are control circuit and sensor in case.

Temperature controller, temperature-control circuit and power-on switch described in the utility model etc. can use existing Known schemes in technology, those skilled in the art has appreciated that, will not be repeated here.

Compared with prior art, the beneficial effects of the utility model are：It is easily controlled the amount of test sample, it is ensured that test knot The accuracy and reappearance of fruit, can realize dual-use again, improve the service efficiency of instrument.

Brief description of the drawings

Fig. 1 is that the utility model is used for the structural representation of thermosetting resin and prepreg gel time sensing equipment；

Fig. 2 is the schematic diagram of thermosetting resin test section in the utility model.

Fig. 3 is the schematic diagram of carbon fiber prepreg test section in the utility model.

Embodiment

With reference to embodiment and accompanying drawing to the further explaination of the utility model.

As shown in Figure 1, 2, 3, it is of the present utility model to be used for thermosetting resin and prepreg gel time test equipment, sample Test cell include the 3A of the workspace one and 3B of workspace two, heating unit include temperature element 4, heat conduction carrier 5, electric calorifie installation 6, With heat-insulation layer 7, temperature control unit includes temperature controller 9, expansion slot 1 and insulation sliding door 2, precise temperature control, temperature can be achieved Degree is uniformly distributed.Sample test unit is sample testing area, and 400 × 400mm squares, described sample are processed into upper surface Test cell includes 3A workspaces one：Thermosetting resin test section and 3B workspaces two：Prepreg test section, thermosetting resin is surveyed Area is tried by 630 × 10 (diameter * depth) holes are uniformly distributed；Carbon fiber prepreg test section is golden for 200*400mm rectangle Metal surface, and with 3 pairs of the push pedal up and down that prepreg is tested is used for, for placing and promoting sample.Above and below prepreg test Push pedal is that surface is smooth and with handle, is easy to fix lower push pedal during test and promotes upper push pedal, upper push pedal handle is in upper surface Centre position, lower push pedal handle is in side.

Heating unit is located at the cavity that lower box is surrounded, and full of heat conduction carrier 5, is evenly arranged electric calorifie installation 6, by surveying Warm element 4 realizes temperature control, if two temperature control points, a live display control, another computer heating control.Electric calorifie installation 6 is set Into basic heating, auxiliary heating, temperature control is easy in three groups of regulation heating.Heat conduction carrier 5 can use different according to temperature range Heating medium such as water or conduction oil, heating unit surrounding and bottom are provided with heat-insulation layer 7；

Bottom half is provided with tap hole 8, and top is provided with expansion drum 1, and releasing beneficial to heat conduction carrier and expanding with heat and contract with cold causes Liquid expansion.

Movable heat-preservation sliding door 2, the transparent cover being made up of two groups of thermostable transparent lucite are housed above heating unit Composition, transparent cover bottom is equipped with pulley, can be slid in certain tracks, the effect for installing protective cover additional is can to reduce the heat of heating process Loss, accelerates heating rate, simultaneously, it is ensured that the insulation of sample in test process, it is ensured that the temperature of test sample.

It is that temperature control instrument, power switch are housed on temperature controller 9, controller front panel on the right side of heating unit.Electricity There are temperature control system and sensor in gas tank.

Embodiment 1

The course of work of the present embodiment is：The aluminium-foil paper of definite shape is converted into mould, the size of aluminium-foil paper is30 (bottoms Face diameter) × 12mm (H), the aluminium-foil paper is placed in beaker, 2g or so testing sample is added on aluminium-foil paper, if sample is firm Taken out from refrigerator, then need to be placed on constant temperature 0.5h in drier；Gel time test device is opened, the setting resin gel time surveys Temperature is tried, insulation sliding door is closed, and begun to warm up, after reaching test temperature and be stable, the aluminium-foil paper of testing sample is will be equipped with It is placed in the instrument connection of thermosetting resin test section of gel time test cell, it is ensured that bottom surface is smooth, is close to the plane in hole, and Start timing with stopwatch.A small amount of resin is constantly taken with glass bar in test process, its flow condition is observed, resin starts wire drawing then Stop timing, time now is the gel time of resin.Because gel time test device is in thermosetting resin measurement region There are 6 holes in domain, and multiple sample tests can be carried out simultaneously, simple to operate, quickly.Table 1 below is anhydride system resin formula not equality of temperature Gel time under degree.

The gel time of epoxy resin/anhydride system under the different temperatures of table 1.

Embodiment 2

The course of work of the present embodiment is：Carbon fiber prepreg sample to be measured is cut into the pros that size is 100mm × 100mm Shape, sample tailors 12, and every group of sample needs three, after the centrifugation paper of prepreg upper and lower surface and PE films are removed, by sample Removed before orthogonal laying, the centrifugation paper of upper and lower surface or PE film last tests.Open gel time test device, by electric hot plate plus Heat is to test temperature (being defined by surface temperature) and to temperature stabilization, and temperature deviation is ± 1 DEG C.Test cell prepreg is tested The attachment device lower plate in region is placed on the surface of carbon fiber prepreg test section, then the sample of 4 orthogonal layings is placed on additional Device lower plate center, then, upper plate is covered on sample.Start timing when temperature reaches set point of temperature, while constantly promoting Steel plate slidably reciprocates.When steel plate is no longer slided, record undergone time, as gel time, 1s is accurate to.Table 2 below is The beautiful T700-12K-50SC carbon fibers in east are tested with 100g/cm2 prepregs gel time made from intermediate temperature setting epoxy-resin systems As a result.

Table 2

It should be noted last that, above example is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent The utility model is described in detail with reference to preferred embodiment for pipe, it will be understood by those within the art that, can be with Technical scheme to utility model is modified or equivalent substitution, without departing from the spirit and model of technical solutions of the utility model Enclose, it all should cover among right of the present utility model.

Claims (4)

1. one kind is used for thermosetting resin and prepreg gel time test equipment, including case body, it is characterised in that：The case sheet Sample test unit, heating unit and temperature measuring unit are provided with vivo；

In the top of described case body provided with insulation sliding door (2)；

Temperature controller (9) is provided with the side of the case body；

Tap hole (8) is provided with the bottom of the case body, the tap hole (8) is swollen above case body exterior with being located at by pipe Swell (1) is connected；

Described sample test unit be located at case body interior above, and be divided into two regions, i.e. thermosetting resin test section and Carbon fiber prepreg test section, the thermosetting resin test section is evenly distributed with hole, for thermosetting resin gel time Test, the upper surface of the carbon fiber prepreg test section is provided with upper push pedal and lower push pedal；

Described heating unit is located at below box house, including temperature element (4), heat conduction carrier (5) and electric calorifie installation (6), The bottom of the heating unit and heat-insulation layer (7) is surrounded by, the temperature element (4) is connected with the temperature controller (9).

2. according to claim 1 be used for thermosetting resin and prepreg gel time test equipment, it is characterised in that institute The transparent cover that the insulation sliding door stated is made up of two groups of thermostable transparent lucite is constituted, transparent cover bottom be equipped with pulley, for Sliding on track.

3. according to claim 1 be used for thermosetting resin and prepreg gel time test equipment, it is characterised in that institute The smooth square-shaped metal surface that thermosetting resin test section is 400mm*400mm is stated, the carbon fiber prepreg test section is 200mm*400mm smooth rectangle metal surface.

4. according to claim 1 be used for thermosetting resin and prepreg gel time test equipment, it is characterised in that institute Temperature element is stated provided with two temperature control points, a live display control, another computer heating control.