CN-115816853-B - Flexible material connection structure and preparation method thereof

Abstract

The application discloses a flexible material connecting structure and a preparation method thereof, wherein the flexible material connecting structure comprises a first flexible material, a second flexible material and a rubber connecting part which are integrally formed, the first flexible material and the second flexible material are uniformly divided into a connecting section and an extending section, a plurality of vertical through holes are respectively formed in the connecting section of the first flexible material and the connecting section of the second flexible material and are used for flowing in melted rubber and then solidifying and forming so as to realize fixed connection with the rubber connecting part in the vertical direction, and a plurality of wedge-shaped structures are arranged along the length directions of the connecting section of the first flexible material and the connecting section of the second flexible material so as to realize fixed connection with the rubber connecting part in the horizontal direction, or the connecting section of the first flexible material and the connecting section of the second flexible material are of convex block structures. The flexible material connecting structure provided by the application can realize connection without a rigid component, and simultaneously ensures the connection effect and the airtight effect, and has high connection strength and good airtight effect.

Inventors

• LI YUMING
• Cai Fengru
• SHI YULIANG
• DAI XIN
• Hua Dengmin
• JIANG XUEHUA
• CHEN SHIZHOU
• ZHANG HONGRUI
• Jin Kaicai
• LIU YUNCHANG
• SUN FENGZHAN

Assignees

• 山东建通土工材料有限公司

Dates

Publication Date

20260505

Application Date

20221128

Claims (8)

1. 1. The flexible material connecting structure for the engineering part is characterized by comprising a first flexible material, a second flexible material and a rubber connecting part which are integrally formed, wherein the first flexible material and the second flexible material are uniformly divided into a connecting section and an extending section, a plurality of vertical through holes are formed in the connecting section of the first flexible material and the connecting section of the second flexible material, the vertical through holes are used for flowing in melted rubber and then are solidified and formed so as to realize the fixed connection with the rubber connecting part in the vertical direction, a plurality of wedge-shaped structures are arranged along the length direction of the connecting section of the first flexible material and the connecting section of the second flexible material so as to realize the fixed connection with the rubber connecting part in the horizontal direction, or the connecting section of the first flexible material and the connecting section of the second flexible material are of a convex block structure, the material of the first flexible material is one of polyethylene, TPO, PVC or TPE, and the material of the second flexible material is one of polyethylene, TPO and TPE; the flexible material connection structure for the engineering part is prepared by the following steps: (1) Determining a first flexible material and a second flexible material to be connected, forming a plurality of vertical through holes in the first flexible material connecting section and the second flexible material connecting section, and respectively forming a plurality of wedge-shaped structures in the first flexible material connecting section and the second flexible material connecting section by adopting a thermoplastic pultrusion process; (2) And placing the first flexible material connecting section and the second flexible material connecting section in a mould, adding injected rubber, heating and vulcanizing to form a flexible material connecting structure which is used for engineering parts, has different flexible materials at two ends and is provided with a rubber connecting part in the middle.
2. 2. The flexible material connection structure for engineering parts according to claim 1, wherein an angle formed by one end of the wedge-shaped structure, which is close to the first flexible material extension section, and the first flexible material is 60-90 degrees, and an angle formed by one end of the wedge-shaped structure, which is close to the second flexible material extension section, and the second flexible material is 60-90 degrees.
3. 3. The flexible material connection structure for an engineering site of claim 1, wherein the length of the wedge structure is not less than 2 times the thickness of the first flexible material or the second flexible material.
4. 4. The flexible material connection structure for engineering parts according to claim 1, wherein the ratio of the distance between adjacent vertical through holes to the diameter length of the through holes is 3-5:1.
5. 5. The flexible material connection structure for engineering parts according to claim 1, wherein the height of the protruding block structure is more than 2 times the thickness of the first flexible material or the second flexible material, and the length of the protruding block structure is not less than 1/3 of the length of the rubber connection part.
6. 6. The flexible material connection structure for engineering parts according to claim 1, wherein the rubber connection part is made of one of polyisoprene rubber, styrene-butadiene rubber, neoprene rubber, ethylene propylene rubber or butyl rubber.
7. 7. The flexible material connection structure for engineering parts according to claim 1, wherein the temperature of the thermoplastic pultrusion process is 120-240 ℃ and the time is 2-6 min, and the pultrusion speed is less than or equal to 4.5 m/min.
8. 8. The flexible material connection structure for engineering parts according to claim 7, wherein the temperature of heating and vulcanizing is 120-240 ℃, the time is 2 min-6 min, and the pressure is 1.0-1.5 mpa.

Description

Flexible material connection structure and preparation method thereof Technical Field The application relates to a flexible material connecting structure and a preparation method thereof, and belongs to the technical field of flexible material fixed connection. Background A flexible material is a material that has a certain degree of softness and flexibility relative to a rigid material. The flexible materials are applied to different engineering parts due to different properties, the same flexible materials can be fixedly connected through hot-melt welding, and the different flexible materials cannot be connected through hot-melt welding. In the prior art, two different flexible materials are fixedly connected in a riveting mode, the connection strength is high, however, gaps are generated in the connection mode, sealing of the flexible materials cannot be achieved, the sealing effect is poor, water seepage and water leakage occur, the two different flexible materials are fixedly connected in an adhesive mode, the tightness is high, the connection strength is weak, and connection breakage occurs easily. Disclosure of Invention In order to solve the problems, the application provides a flexible material connecting structure, which is characterized in that through the arrangement of the vertical through holes, molten rubber flows into the vertical through holes and is solidified and formed, so that the first flexible material and the rubber connecting part and the second flexible material and the rubber connecting part are fixedly connected in the vertical direction, through the arrangement of a plurality of wedge-shaped structures, the contact area between the first flexible material or the second flexible material and the rubber connecting part is increased, the resistance is increased, and the horizontal direction fixed connection is realized, or the contact area between the first flexible material or the second flexible material and the rubber connecting part is increased, the resistance is increased, so that the first flexible material or the second flexible material is not separated from the rubber connecting part, and the connection between the first flexible material and the second flexible material is realized. The flexible material connecting structure provided by the application can realize connection without a rigid component, and simultaneously ensures the connection effect and the airtight effect, and has high connection strength and good airtight effect. According to one aspect of the present application, there is provided a flexible material connection structure including a first flexible material, a second flexible material and a rubber connection portion integrally formed, the first flexible material and the second flexible material being equally divided into a connection section and an extension section; The connecting section of the first flexible material and the connecting section of the second flexible material are respectively provided with a plurality of vertical through holes, the vertical through holes are used for flowing in melted rubber and then solidifying and forming so as to realize the fixed connection with the rubber connecting part in the vertical direction, a plurality of wedge-shaped structures are arranged along the length directions of the connecting section of the first flexible material and the connecting section of the second flexible material so as to realize the fixed connection with the rubber connecting part in the horizontal direction, or The connecting section of the first flexible material and the connecting section of the second flexible material are of convex block structures. Optionally, an angle formed by one end of the wedge-shaped structure, which is close to the first flexible material extension section, and the first flexible material is 60-90 degrees, and an angle formed by one end of the wedge-shaped structure, which is close to the second flexible material extension section, and the second flexible material is 60-90 degrees. Optionally, the length of the wedge-shaped structure is not less than 2 times the thickness of the first flexible material or the second flexible material. Optionally, the ratio of the distance between the adjacent vertical through holes to the diameter length of the through holes is 3-5:1. Optionally, the height of the protruding block structure is more than 2 times of the thickness of the first flexible material or the second flexible material, and the length of the protruding block structure is not less than 1/3 of the length of the rubber connecting part. Optionally, the material of the first flexible material is one of polyethylene, TPO, PVC or TPE, and the material of the second flexible material is one of polyethylene, TPO, PVC or TPE. Optionally, the rubber connecting part is made of one of polyisoprene rubber, styrene-butadiene rubber, chloroprene rubber, ethylene propylene rubber or butyl rubber. According to still an