Testing device for comparing affinity of resin and isolating membrane

Abstract

The utility model discloses a testing device for comparing affinity of resin and an isolating membrane, which is characterized by comprising a glass platform on which a plurality of glass fiber cloth layers are laid through sealing tapes; isolating membrane layers are laid on the different glass fiber cloth layers; a flow guide medium layer is arranged on the isolating membrane layer, and a first vacuum branch pipe and a second vacuum branch pipe are arranged on the flow guide medium layer; the first vacuum branch pipe is connected with a vacuum air pump through a first tee joint and a first vacuum pipeline; the second vacuum branch pipe is connected with a container filled with resin through a second tee joint and a second vacuum pipeline; and then the uppermost layer is sealed through a vacuum bag film along the sealing tape. According to the device disclosed by the utility model, the affinity of various isolating membranes and resin workpieces can be simultaneously realized through one-time filling.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite material testing device technical field, concretely relates to a test device of comparing resin and isolation membrane affinity. BACKGROUND

[0002] With the rapid development of composite material industry, composite material forming process is constantly optimized, wherein the most widely used forming process in wind power blade forming is vacuum resin infusion forming.

[0003] After resin curing forming, the isolation membrane in contact with the resin needs to be stripped, which considers the affinity between the resin and the isolation membrane.

[0004] The better the affinity, the greater the adhesion between the resin and the isolation membrane, which causes the isolation membrane to be torn when stripping, and needs time and effort to remove, and if residual in the surface of the composite material product, it will also affect the subsequent bonding process, causing the product to be scrapped.

[0005] Therefore, how to select appropriate isolation membrane for different cured resin plays an important role in product forming. UTILITY MODEL CONTENT

[0006] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a test device for comparing the affinity of resin and isolation membrane. The device of the utility model can simultaneously realize the comparison of the affinity of a plurality of isolation membranes and resin products through one infusion.

[0007] In order to realize the purpose of the utility model, the technical scheme adopted is:

[0008] A test device for comparing the affinity of resin and isolation membrane, comprising:

[0009] A glass platform, a plurality of glass fiber cloth layers are laid on the glass platform through sealing tape;

[0010] Isolation membrane layers are laid on different glass fiber cloth layers;

[0011] A flow guide medium layer is arranged on the isolation membrane layer, and a first vacuum branch pipe and a second vacuum branch pipe are arranged on the flow guide medium layer;

[0012] The first vacuum branch pipe is connected with a vacuum air pump through a first three-way joint and a first vacuum pipeline;

[0013] The second vacuum branch pipe is connected with a container containing resin through a second three-way joint and a second vacuum pipeline;

[0014] The uppermost layer is sealed along the sealing tape by a vacuum bag film.

[0015] In one preferred embodiment of the utility model, the first vacuum pipeline and vacuum air pump are provided with backflow tank for preventing resin backflow.

[0016] In one preferred embodiment of the utility model, the glass fiber cloth layer is single-layer or multi-layer glass fiber cloth stacking.

[0017] In one preferred embodiment of the utility model, the sealing is sealed by vacuum bag film along the edge of the sealing strip and the first vacuum branch pipe or the second vacuum branch pipe extends the edge of the sealing strip.

[0018] In one preferred embodiment of the utility model, the vacuum air pump is vacuum air pump.

[0019] In one preferred embodiment of the utility model, the flow guide medium layer is nylon, stainless steel or polyester fiber or glass fiber material.

[0020] The utility model has the advantages of:

[0021] The device of the utility model can set multiple areas according to actual needs at one time, and can realize the affinity of a plurality of isolation membranes and resin products according to actual needs. DRAWINGS

[0022] Figure 1 The utility model discloses a structure schematic diagram. CONCRETE IMPLEMENTING METHOD

[0023] In order to make the purpose, technical scheme and advantage of the utility model more clear and explicit, the following through the drawing and example, the utility model is further detailedly explained.But it should be understood, the specific example described here is only used to explain the utility model, and is not used to limit the scope of the utility model.In addition, in the following structure, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description.The orientation or positional relationship indicated or implied by the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] As Figure 1The test device for comparing the affinity of resin and isolation film includes a glass platform 100 arranged at the bottom, and a plurality of glass fiber cloth layers 200 are laid on the glass platform 100 through the sealing tape 201 of the edge of the glass fiber cloth.

[0026] The glass fiber cloth layer 200 is a single-layer or multi-layer glass fiber cloth stack, which can be stacked according to the amount of 2-10 layers as needed, so as to verify the correlation between different resin amounts and the affinity of the isolation film.

[0027] The isolation film layer 300 is laid on the different glass fiber cloth layers 200, and the flow guide medium layer 400 is arranged on the isolation film layer 300. The flow guide medium layer is made of nylon, stainless steel or polyester fiber or glass fiber material. The flow guide medium layer is used for guiding the resin flow, ensuring that the resin can uniformly infiltrate the reinforcing material, and reducing the generation of bubbles and defects.

[0028] The first vacuum branch pipe 510 and the second vacuum branch pipe 520 are arranged on the left and right sides of the flow guide medium layer 400 respectively.

[0029] The first vacuum branch pipe 510 is connected with the vacuum air pump 540 through the first three-way pipe 511 and the first vacuum pipeline 530, and in order to control the resin backflow, the backflow tank 550 for preventing the resin backflow is arranged between the first vacuum pipeline 530 and the vacuum air pump 540. The vacuum air pump 540 is a vacuum air pump.

[0030] The second vacuum branch pipe 520 is connected with the container 600 containing resin through the second three-way pipe 521 and the second vacuum pipeline 560. In the embodiment, the container 600 containing resin can be a resin tank.

[0031] If one three-way pipe is used for testing two kinds of isolation films, three three-way pipes are used for testing four kinds of isolation films, and so on, a plurality of different verification experiments can be simultaneously performed.

[0032] Then, the vacuum bag film 700 is sealed along the sealing tape on the uppermost layer.

[0033] The sealing is performed by sealing the vacuum bag film 700 along the edge of the sealing tape 201, and the first vacuum branch pipe 510 or the second vacuum branch pipe 520 extends out of the edge of the sealing tape 201.

[0034] Because of the above structure, the working principle of the utility model is that:

[0035] First, the second vacuum pipeline 560 is blocked, and then the vacuum air pump 540 is used for vacuumizing, and the vacuumizing is performed to above-0.096 MPa, and the pressure is maintained for 5 min.

[0036] After the resin and the curing agent are added into the resin tank and stirred uniformly, defoaming is performed for 10 minutes.

[0037] After curing is completed, the vacuum bag film 700, the flow guide medium layer 400 and the isolation film layer 300 are peeled off gradually, the adhesion between the isolation film layer 300 and the cured resin is compared, and whether the isolation film layer 300 is left on the surface of the resin is observed.

[0038] The device of the utility model can realize the affinity of a plurality of isolation films and resin products at the same time after one-time pouring.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0040] Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. The utility model falls within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A testing device for comparing the affinity between resin and separator film, characterized in that, include: A glass platform, on which several layers of fiberglass cloth are laid by sealing tape; A release film layer is laid on different fiberglass cloth layers; A flow guiding medium layer is disposed on the isolation membrane layer, and a first vacuum branch and a second vacuum branch are disposed on the flow guiding medium layer; The first vacuum branch pipe is connected to the vacuum pump via the first tee and the first vacuum line; The second vacuum branch pipe is connected to the container containing resin via a second tee and a second vacuum line; Then, the top layer is sealed along the sealing strip using a vacuum bag film.

2. The testing apparatus for comparing the affinity between resin and separator membrane as described in claim 1, characterized in that, A backflow tank to prevent resin backflow is provided between the first vacuum line and the vacuum pump.

3. The testing apparatus for comparing the affinity between resin and separator membrane as described in claim 1, characterized in that, The fiberglass cloth layer is a single layer or multiple layers of fiberglass cloth stacked together.

4. The testing apparatus for comparing the affinity between resin and separator membrane as described in claim 1, characterized in that, The sealing is achieved by sealing along the edge of the sealing strip using a vacuum bag film, with a first vacuum branch or a second vacuum branch extending beyond the edge of the sealing strip.

5. The testing apparatus for comparing the affinity between resin and separator as described in claim 1, characterized in that, The vacuum pump is a vacuum pump.

6. The testing apparatus for comparing the affinity between resin and separator as described in claim 1, characterized in that, The flow-guiding medium layer is made of nylon, stainless steel, polyester fiber, or glass fiber.

Images