CN205483849U - Consider bonding agent of shear -type load influence and peel off test device - Google Patents

Abstract

The utility model discloses a consider bonding agent of shear -type load influence and peel off test device, the device includes the bonding substrate, its upper surface is used for covering the bonding agent, add the carrier band, load load mechanism is peeled off in its front end connection, end -to -end connection shear -type load load mechanism, peel off load load mechanism along it peels off load to exerting with the carrier band to add the carrier band normal direction, shear -type load load mechanism along add the vertical tensile carrier band that adds of carrier band to exert the shear -type load to adding the carrier band, and the bonding agent is pasted at the bonding substrate and is added between the carrier band, the scale, it is used for measure adding carrier band and bonding agent and peels off length, the scale with add carrier band parallel arrangement. The utility model discloses a peel off test device, can realize cutting and answer load to evaluate to the research of bonding agent failure mode and to the quantification of adhereing nature of bonding agent influence.

Description

A kind of bonding agent peel test device considering that shear-type load affects

Technical field

This utility model relates to the test of bonding agent intensity experiment and technical field, is specifically related to a kind of consideration and cuts Cut the bonding agent peel test device of loading effect.

Background technology

Stripping is one of common failure mode of gluded joint.It is characterized in that gluded joint is by External Force Acting Time, power is not acting on whole splicing face, and be focused only in fitting end one is the narrowest Region, this region seemingly line.When the external force acted on this line is more than the glue of adhesive When connecing intensity, joint is just destroyed along splicing face by peeling force effect.

Disbonded test is one of test method evaluating bonding agent adhesion, does not has in conventional disbonded test Consider the shear-type load impact on bonding agent adhesion, but during actual tests, find shear-type load pair The adhesion of bonding agent is influential, and due in actual use, gluded joint is not only drawn Stretch is also by shear loads, so traditional does not considers the failure mode evaluation that shear-type load affects There is deviation in method.Although, existing disbonded test mode (as T-peeling strength test, 90 ° Peeling strength test, 180 ° of peeling strength tests) some considers the shear-type load impact on adhesion, During disbonded test, peeling load keeps vertical as far as possible thus reduces shear-type load as far as possible with bonding agent Impact, but the impact of shear-type load still makes experimental result there is certain deviation, and be difficult to cutting Cut loading effect and carry out quantitative evaluation.Based on case above, the utility model proposes a kind of consideration and shear load The bonding agent peel test device of lotus impact and test method, it is achieved cut and answer load to bonding agent failure mode Research and the quantitative evaluation on the impact of bonding agent adhesion, perfect existing assay device and the deficiency of method.

Utility model content

This utility model purpose is to provide a kind of bonding agent peel test device, and assay device is set up shearing and carried Lotus load maintainer, it is achieved bonding interface is loaded shear-type load, and peels off under this loading environment Test, thus quantify the shear-type load impact on peel test.

In order to realize according to object of the present invention and further advantage, it is provided that a kind of consideration shear-type load The bonding agent peel test device of impact, including:

Bonding base material, its upper surface is used for covering bonding agent；

Loaded ribbon, its front end connects peeling load load maintainer, and end connects shear-type load load maintainer, Described peeling load load maintainer applies peeling load along described loaded ribbon normal direction to loaded ribbon, described in cut Cut load load maintainer along described loaded ribbon longitudinal stretching loaded ribbon, thus apply to shear to loaded ribbon and carry Lotus；And

Described bonding agent is pasted onto between bonding substrates and loaded ribbon；

Rule, it is used for measuring loaded ribbon and bonding agent strip length, described rule and described loading Band be arranged in parallel.

Preferably, also include: pedestal, its length direction is offered two registration screw holes, described viscous Knot base material is fixed on pedestal by positioning screw hole；Wherein, described pedestal one end is provided with pulley.

Preferably, described loaded ribbon is that thickness is less than 1mm and has the soft of good bonding with bonding agent Property band.

Preferably, described flexible-belt is flexible metal band or flexible fabric band.

Preferably, described flexible metal belt surface offers multiple through hole.

Preferably, described shear-type load load maintainer includes:

First fixed chuck, it is used for connecting loaded ribbon end；

Rope, its front end connects the first fixed chuck, changes direction after walking around pulley, and end connects counterweight；

Wherein, described loaded ribbon is parallel with rope.

Preferably, described peeling load load maintainer includes:

Second fixed chuck, it is used for connecting loaded ribbon front end；

Loading draw ring, including fixing threaded end and draw ring end, fixing threaded end connects the second fixed chuck, Draw ring end connects tensiometer；

Tensiometer, it is positioned at above described loaded ribbon, applies peeling load to loading draw ring.

This utility model at least includes following beneficial effect: 1, bonding agent peel test device can be in test During realize shearing and load, thus consider the different shear stress impact on peel strength.2, bonding agent stripping Separating test method can accurately calculate each displacement in process of the test corresponding according to the length of stripping adhesive tape Shear-type load value, the impact on adhesion of the quantitative evaluation shear-type load.3, bonding agent peel test device Bonding agent corresponding to each shear-type load value can be calculated according to rule and destroy fracture form.4, bonding Agent peel test device can realize the increase along with release surface, and shear stress is gradually increased, and can effectively seek The affecting laws looking for bonding agent generation adhesion to destroy, overcomes the deficiency of existing assay device.5, bonding agent Peel test device can be recorded tear position and calculate bond area according to rule, being converted into this Time shear stress, observe shear stress much value time occur adhesion destroy.6, bonding agent peel test device Simply, process more convenient, there is application universality.

Part is embodied by further advantage of the present utility model, target and feature by description below, part Also will be by research of the present utility model and practice be understood by the person skilled in the art.

Accompanying drawing explanation

Fig. 1 is bonding agent peel test device front view described in the utility model.

Fig. 2 is B regional enlarged drawing in Fig. 1.

Fig. 3 is bonding agent peel test device top view described in the utility model.

Fig. 4 is the structure chart of pedestal in bonding agent peel test device described in the utility model.

Fig. 5 is the structure chart of bonding base material in bonding agent peel test device described in the utility model.

Fig. 6 is that in bonding agent peel test device described in the utility model, bonding base material and pressing plate assembling are shown It is intended to.

Fig. 7 is the structure chart of rule in bonding agent peel test device described in the utility model.

Fig. 8 is the structure chart of loaded ribbon in bonding agent peel test device described in the utility model.

Fig. 9 is the structure of the second fixed chuck in bonding agent peel test device described in the utility model Figure.

Figure 10 is the structure chart loading draw ring in bonding agent peel test device described in the utility model.

Figure 11 is bonding agent length described in the utility model and the schematic diagram of strip length.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art Can implement according to this with reference to description word.

Should be appreciated that used herein such as " have ", " comprising " and " including " term not Allot other element one or more or the existence of a combination thereof or interpolation.

Fig. 1-3 shows according to a kind of way of realization of the present utility model, a kind of consideration shear-type load impact Bonding agent peel test device include: apparatus main body 100, peeling load load maintainer 200, shear carry Lotus load maintainer 300, bonding agent 400.

As it is shown in figure 1, apparatus main body 100 include testing stand 110, pedestal 120, bonding substrates 130, Pressing plate 140, rule 150 and loaded ribbon 160.

Testing stand 110 is horizontal addload platform, and its upper surface is used for fixed pedestal 120.

Pedestal 120 is the base station with certain thickness metal material, and it is parallel that its upper surface offers two rows First positioning screw hole 121, described first positioning screw hole 121 is used for location and fixed bonding substrate 130, Further, pedestal 120 upper surface offers 4 the first fixing holes 122, described first fixing hole 122 For fixing and positioning rule 150.Wherein, the end of pedestal 120 is provided with vertical pulley 123.

In another embodiment, as shown in Figure 4, pedestal 120 is a block length square plate, long 400mm, Wide 80mm, high 10mm, its lower surface is bolted on testing stand 110 by 4.

Bonding substrates 130 is slim rectangular structure, and its upper surface offers two rows and is parallel to length direction The second positioning screw hole 131, described second positioning screw hole 131 is through hole, and its size is fixed with first Position screw hole 121 matches, and the position and two of the second positioning screw hole 131 that two rows are parallel to each other Arrange the first parallel positioning screw hole 121 corresponding.Further, bonding substrates 130 arranges two Surface between two positioning screw holes 131 is used for spraying and adhesive bonding agent 400.

In another embodiment, as it is shown in figure 5, the described long 300mm of bonding base material 130, wide 45mm, Thick 3mm.

Bonding substrates 130 is fixed and is positioned on pedestal 120 by bolt by pressing plate 140, described pressing plate Offer a registration bolt hole on 140, when being fixed, 2 pressing plates 140 are symmetricly set on bonding Base material 130 both sides, bonding substrates 130 is placed on pedestal 120, now, it is ensured that described bolt Hole, the second positioning screw hole 131 are corresponding with the first positioning screw hole 121 position, are worn successively by bolt After crossing positioning bolt hole, the second positioning screw hole 131 and the first positioning screw hole 121, by pressing plate 140 Bonding substrates 130 is fixed on pedestal 120.

In another embodiment, as shown in Figure 6, the long 300mm of pressing plate 140, wide 10mm, thick 2mm.

As it is shown in fig. 7, the second fixing hole 151 is offered at rule 150 two ends, scale is carved with on its surface, For measuring peel distance.During installation, 2 rules 150 are symmetricly set on pedestal 120, and second Fixing hole 151 is corresponding with the first fixing hole 122 position on pedestal 120, screw bolt passes second After fixing hole 151 and the first fixing hole 122, rule 150 is fixed on pedestal 120.Such as Fig. 2 Shown in, described rule 150 is fixed on pedestal 120 with bonding substrates 130 and is parallel to each other, and enters one Step, rule 150 is fixed on the outside of bonding substrates 130.Bonding agent 400 is folded in bonding base Between material 130 and loaded ribbon 160.

As shown in Figure 8, loaded ribbon 160 is a kind of and bonding agent has good bonding, has foot simultaneously The flexible metal band of enough intensity, flexible metal tape thickness is less than 1mm, energy in the range of certain peeling load Enough bendings or torsion；Its surface has through hole, it is ensured that in process of the test, the bonding side of loaded ribbon 160 will not Interfacial failure occurs, and loaded ribbon 160 lower surface is bonded by bonding agent 400 and bonding base material 130, Described loaded ribbon 160 lower surface bonds with bonding agent 400, and ensures to destroy in bonding side. Wherein, loaded ribbon front end offers fixing hole 161, is used for connecting peeling load load maintainer 200；Rear end Fixing connection shear-type load mechanism 300.

In another embodiment, described loaded ribbon 160 has good bonding performance for other and bonding agent Flexible fabric band, has certain flexibility, and available bonding length is not less than 260mm, wide 25mm, thick 0.8mm。

The installation process of apparatus main body 100 is: testing stand 110 horizontal positioned, is fixed on by pedestal 120 On testing stand 110, by positioning bolt hole, the second positioning screw hole on screw bolt passes pressing plate 140 Bonding substrates 130 after positioning screw hole 121, is fixed on pedestal 120 by pressing plate 140 by 131 and first On；2 rules 150 are symmetricly set on pedestal 120, the second fixing hole 151 and pedestal 120 On the first fixing hole 122 position corresponding, screw bolt passes the second fixing hole 151 and first is fixed Behind hole 122, rule 150 is fixed on pedestal 120；Now, by bonding substrates 130 upper surface It is cleaned processing and spraying and adhesive bonding agent 400, loaded ribbon 160 lower surface is accurately bonded to the viscous of spraying Connect in agent 400.

As illustrated in fig. 1 and 2, peeling load load maintainer 200 includes the second fixed chuck 210, loads Draw ring 220 and tensiometer 230, wherein, Fig. 9 shows the second fixed chuck 210, including clamper main body 211, fixed block 212 and fixing bolt 213, described second fixed chuck 210 loaded for fixing connection 160 front ends, described fixing bolt 213 are carried to sequentially pass through fixing hole in fixed block 212, loaded ribbon 160 161 and clamper main body 211 after, its two ends bolt is fixed thus by loaded ribbon 160 and the second fixation clamp 210 fixing connect.Figure 10 shows loading draw ring 220, described loading draw ring 220 bottom and second Fixed chuck 210 is fixing to be connected, and the draw ring on top connects tensiometer 230, and described tensiometer 230 can carry For stablizing peeling load.

As shown in figs. 1 and 3, shear-type load load maintainer 300 includes the first fixed chuck 310, rope 320 and counterweight 330, described first fixed chuck 310 structure is identical with the first fixed chuck 210, and it is solid Surely the end of loaded ribbon 160, wherein, the length direction of described first fixed chuck 310 and loading are connected Carry 160 keeping parallelisms, thus ensure that the shear-type load that counterweight applies effectively acts in loaded ribbon 160； Rope 320 front end connects the first fixed chuck 310, and after the vertical pulley of stage casing pile warp 123, end connects weight Code 330.

Bonding agent 400 is sprayed on bonding substrates 130 upper surface, and gluing length is not less than 260mm, bonding Agent thickness meets 3mm requirement, then carries out bonding by loaded ribbon 160 lower surface with bonding agent 400 and pass through Effective time solidifies, and in order to ensure bonding thickness evenness, should apply uniform pressure on whole splicing face, Solidification disposes the redundant adhesive beyond loaded ribbon 160 after terminating.Now, the length of loaded ribbon 160 Parallel with the length direction of bonding substrates 130 in direction.

The Failure type of bonding agent generally divides three classes:

First, during test, bonding agent itself destroys, the most referred to as cohesional failure, viscous Connect base material and loaded ribbon will not be destroyed；

Second, during test, bonding agent is completely exfoliated above bonding base material, and bonding agent stays In loaded ribbon, this phenomenon is interfacial failure, and the most also referred to as adhesion is destroyed；

3rd, occur mixing to destroy in process of the test, it is simply that to have bonding on bonding base material and loaded ribbon Agent, this situation is referred to as mixing destruction, and in this utility model, loaded ribbon carries out special handling also for keeping away Exempt from the appearance of this situation.

As Figure 1-3, below bonding agent peel test device installation steps:

Step one, testing stand 110 horizontal positioned, be bolted to testing stand by pedestal 120 by 4 On 110.

Step 2, by positioning bolt hole, the second positioning screw hole 131 on screw bolt passes pressing plate 140 After the first positioning screw hole 121, bonding substrates 130 is fixed on pedestal 120 by pressing plate 140.

Step 3, bonding agent 400 are sprayed on bonding substrates 130 upper surface, and gluing length is not less than 260mm, Bonding agent thickness meets 3mm requirement, then loaded ribbon 160 lower surface is carried out with bonding agent 400 bonding also Solidify through effective time, in order to ensure bonding thickness evenness, should apply on whole splicing face uniformly Pressure, solidification disposes the redundant adhesive beyond loaded ribbon 160 after terminating.Now, loaded ribbon 160 Length direction parallel with the length direction of bonding substrates 130.

Step 4,2 rules 150 are symmetricly set on pedestal 120, the second fixing hole 151 with The first fixing hole 122 position on pedestal 120 is corresponding, screw bolt passes the second fixing hole 151 He After first fixing hole 122, rule 150 is fixed on pedestal 120.

Step 5, is connected fixing to peeling load load maintainer 200 and loaded ribbon 160 front end, shears load Lotus load maintainer 300 is fixing with the end of loaded ribbon 160 to be connected, and afterwards, opens tensiometer 230 simultaneously Can test after loading counterweight 330.

A kind of bonding agent disbonded test method considering that shear-type load affects, comprises the following steps:

Step 1, bonding agent 400 is sprayed on bonding base material 130, bonding loading on bonding agent 400 Band 160 also ensures that loaded ribbon 160 is parallel to bonding base material 130, after bonding agent 400 solidification, and loaded ribbon 160 front ends connect peeling load load maintainer 200, and rear end connects shear-type load load maintainer 300；

Step 2, set the peeling load of peeling load load maintainer 200 as F, peeling load F along loading Band normal direction applies, and on the rope of shear-type load load maintainer 300, load mass is the counterweight of m, thus right Loaded ribbon end applies shear-type load p, starts disbonded test, bonding agent under the effect of peeling load F Peeling off with bonding substrates, along with the stripping siding-to-siding block length of bonding agent increases, shear-type load τ increases therewith；

In step 3, experimentation, on stripping section, some interval is cohesional failure, and some is interval possible Being interfacial failure, bonding agent is n section interval (may in most cases interfacial failure only one of which interval) Occur adhesion to destroy, calculate the shear stress τ of i-th section of interval adhesion destruction:

${\mathrm{\τ}}_{\min }=\frac{p}{B\·(L-L_0^i)}$

${\mathrm{\τ}}_{max}=\frac{p}{B\·(L-L_1^i)}$

$\frac{p}{B\·(L-L_0^i)}\≤\mathrm{\τ}\≤\frac{p}{B\·(L-L_1^i)}$

Wherein, p is shear-type load, and it is equal to the gravity of counterweight；B is the width of bonding agent, and unit is m；L is the length that bonding agent peels off section, and unit is m；I be in n section interval i-th section stick Property destroy interval, i=1 ..., n；Adhesion is occurred to destroy for bonding agent forward terminal to i-th section is interval The distance length of starting point, unit is m；Adhesion is occurred to break for bonding agent forward terminal to i-th section is interval The distance length of bad terminal, unit is m；Wherein, Figure 11 show L,WithDistance.

Embodiment 1

Step one: hang quality 40Kg counterweight in vertical pulley lower end, bonding agent is applied shear-type load, Tensiometer applies to be perpendicular to the peeling load 1500N in its direction by loading draw ring to loaded ribbon, cuts Cut the disbonded test loading and carrying out bonding agent under shearing loading environment；

Step 2: a length of 260mm of stripping section of whole jointing tape, width is 25mm, with i-th As a example by interfacial failure interval, place, after completing disbonded test, observe adhesive tape section failure mode, by carving Degree chi observes bonding agent interfacial failure original position to end-point distances lengthIt is 110mm, bonding agent interface Destroy final position to end-point distances lengthIt is 160mm；

Step 3: the shear stress τ calculating interfacial failure is interval:

${\mathrm{\τ}}_{\min }=\frac{p}{B\·(L-L_0^i)}=0.11MPa$

${\mathrm{\τ}}_{max}=\frac{p}{B\·(L-L_1^i)}=0.16MPa$

0.11MPa≤τ≤0.16MPa

It is computed the shear-type load interval 0.11≤τ of interfacial failure at i-th≤0.16MPa, i.e. bonding agent to exist Occur that adhesion is destroyed during shear-type load interval 0.11≤τ≤0.16MPa.

Although embodiment of the present utility model is disclosed as above, but it is not restricted to description and reality Execute listed in mode utilization.It can be applied to various applicable field of the present utility model completely.For For those skilled in the art, it is easily achieved other amendment.Therefore without departing substantially from claim And under the general concept that limited of equivalency range, this utility model is not limited to specific details and shows here The embodiment gone out and describe.

Claims (7)

1. the bonding agent peel test device considering that shear-type load affects, it is characterised in that including:

Bonding base material, its upper surface is used for covering bonding agent；

Loaded ribbon, its front end connects peeling load load maintainer, and end connects shear-type load load maintainer, Described peeling load load maintainer applies peeling load along described loaded ribbon normal direction to loaded ribbon, described in cut Cut load load maintainer along described loaded ribbon longitudinal stretching loaded ribbon, thus apply to shear to loaded ribbon and carry Lotus；And

Described bonding agent is pasted onto between bonding substrates and loaded ribbon；

Rule, it is used for measuring loaded ribbon and bonding agent strip length, described rule and described loading Band be arranged in parallel.

2. the bonding agent peel test device considering shear-type load impact as claimed in claim 1, it is special Levy and be, also include:

Pedestal, its length direction is offered two registration screw holes, and described bonding substrates is by location screw Hole is fixed on pedestal；Wherein, described pedestal one end is provided with pulley.

3. the bonding agent peel test device considering shear-type load impact as claimed in claim 1, it is special Levying and be, described loaded ribbon is that thickness is less than 1mm and has the flexible-belt of good bonding with bonding agent.

4. the bonding agent peel test device considering shear-type load impact as claimed in claim 3, it is special Levying and be, described flexible-belt is flexible metal band or flexible fabric band.

5. the bonding agent peel test device considering shear-type load impact as claimed in claim 4, it is special Levy and be, described flexible metal belt surface offers multiple through hole.

6. the bonding agent peel test device considering shear-type load impact as claimed in claim 5, it is special Levying and be, described shear-type load load maintainer includes:

First fixed chuck, it is used for connecting loaded ribbon end；

Rope, its front end connects the first fixed chuck, changes direction after walking around pulley, and end connects counterweight；

Wherein, described loaded ribbon is parallel with rope.

7. the bonding agent peel test device considering shear-type load impact as claimed in claim 6, it is special Levying and be, described peeling load load maintainer includes:

Second fixed chuck, it is used for connecting loaded ribbon front end；

Loading draw ring, including fixing threaded end and draw ring end, fixing threaded end connects the second fixed chuck, Draw ring end connects tensiometer；

Tensiometer, it is positioned at above described loaded ribbon, applies peeling load to loading draw ring.