Ultrahigh-modulus glass fiber direct yarn impregnating compound for corrosion-resistant petroleum pipeline and testing device

Abstract

The invention relates to the field of impregnating compounds and technologies, in particular to an ultra-high modulus glass fiber direct yarn impregnating compound for a corrosion-resistant petroleum pipeline and a testing device. The impregnating compound comprises the following components in percentage by weight: 10-20% of a coupling agent, 50-85% of a film-forming agent, 8-22% of a lubricant, 0.2-2% of an anti-aging agent and 0.4-2% of a pH regulator. The testing device comprises a connecting part; a tension test assembly; and polishing the test part. The ultra-high modulus glass fiber direct yarn produced by adopting the impregnating compound disclosed by the invention not only has ultra-high impact strength, but also has good wear resistance and less hairiness, and is very suitable for a winding process under high tension; the testing device can be used for simultaneously detecting the wear resistance and the tensile property of the glass fiber, different tests do not influence each other, and the testing device is convenient and rapid to use.

Description

Technical Field

[0001] The invention relates to the field of sizing agents and the technical field, in particular to an ultra-high modulus glass fiber direct yarn sizing agent for corrosion-resistant petroleum pipelines and a testing device. Background Art

[0002] In the petrochemical industry, a large number of pipelines are needed to transport oil. Traditional oil pipelines are all made of steel structures, and galvanized iron sheets, aluminum plates, stainless steel plates and other metal materials are set on their surfaces for corrosion protection. Most of these anti-corrosion structures have the disadvantages of low mechanical strength and high thermal conductivity. At the same time, these anti-corrosion layers are seriously aged after a period of use. Leakage accidents caused by corrosion occur from time to time, which increases the operating costs of petrochemical companies.

[0003] Ultra-high modulus glass fiber has excellent comprehensive properties such as high strength, high modulus, corrosion resistance, and pressure resistance. These properties make it an ideal material for external corrosion protection of oil, natural gas, and coal gas pipelines. However, the existing ultra-high modulus glass fiber has poor wear resistance, is prone to burrs after impregnation, and is easy to break after winding under high tension, which has certain defects in use. Therefore, the present application provides a solution for an ultra-high modulus glass fiber direct yarn impregnating agent for corrosion-resistant oil pipelines to improve the wear resistance, tensile resistance and other properties of the ultra-high modulus glass fiber direct yarn; at the same time, a glass fiber direct yarn testing device is provided to test the physical properties of the glass fiber direct yarn treated with the impregnating agent of the present application. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an ultra-high modulus glass fiber direct yarn impregnation agent and a testing device for corrosion-resistant petroleum pipelines.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an ultra-high modulus glass fiber direct yarn impregnating agent for corrosion-resistant petroleum pipelines, which comprises the following components by weight: 10-20% of a coupling agent, 50-85% of a film-forming agent, 8-22% of a lubricant, 0.2-2% of an anti-aging agent, and 0.4-2% of a pH regulator.

[0006] As an optimization, the coupling agent includes a urea-based silane coupling agent and an aminosilane coupling agent, and the film-forming agent includes a mixture of any two or more bisphenol A epoxy emulsions having a molecular weight between 350-7000.

[0007] As an optimization, the lubricant is an ammonium salt type cationic lubricant, the anti-aging agent is an ammonium salt, and the pH adjuster is acetic acid, phosphoric acid, formic acid or citric acid.

[0008] The testing device includes a connecting part for connecting two ends of the glass fiber direct yarn so that the glass fiber direct yarn is arranged in a ring shape; A tensile test assembly, comprising two clamping blocks, the two clamping blocks are distributed along the length direction of the glass fiber direct yarn, and can stretch the glass fiber direct yarn between the two clamping blocks; Grinding test part: The glass fiber direct yarn is wrapped around the outside of the grinding test part, and the grinding test part includes a plurality of grinding rollers, the lower part of the grinding roller is a cylindrical section, and the upper part is a variable diameter section, the diameter of the variable diameter section gradually increases from bottom to top, and the connecting part and the tensile test assembly can drive the glass fiber direct yarn to move from the cylindrical section to the variable diameter section.

[0009] As an optimization, it also includes a support seat, and the connection part, the tensile test part and the grinding test part are all arranged on the upper side of the support seat; The support seat is provided with a first lifting assembly and a second lifting assembly, the first lifting assembly is used to drive the connection part to rise and fall, the second lifting assembly is connected to an auxiliary frame, and the tensile testing part is connected to the auxiliary frame.

[0010] As an optimization, the connecting part includes a connecting seat, and a first wire-feeding channel and a second wire-feeding channel are arranged inside the connecting seat, the first wire-feeding channel and the second wire-feeding channel are arranged in parallel, and the first wire-feeding channel and the second wire-feeding channel are respectively used to accommodate the two ends of the glass fiber direct yarn; A plurality of first fixing components and a plurality of second fixing components are arranged inside the connecting seat, the first fixing component can extend into the first wire feeding channel to tighten and fix the glass fiber direct yarn, the second fixing component can extend into the second wire feeding channel to fix the glass fiber direct yarn, one end of the first wire feeding channel and the other end of the second wire feeding channel are rotatably connected with a first detection block, the first detection block is in contact with the glass fiber direct yarn, and a first pressure sensor is connected between the first detection block and the connecting seat.

[0011] As an optimization, an S-shaped wire feeding channel is arranged inside the clamping block, two tightening rods are arranged on both sides of the bending part of the S-shaped wire feeding channel, tightening blocks are arranged at the extended ends of the two tightening rods, and the two tightening rods are arranged in parallel.

[0012] As an optimization, the number of the grinding rollers is at least 2, the tensile test assembly is located between two oppositely disposed grinding rollers, and the tensile test assembly and the connecting portion are disposed oppositely on both sides of the grinding test portion; A grinding motor is connected to the axial direction of the grinding roller, and the grinding motor is used to drive the grinding roller to rotate.

[0013] As an optimization, the auxiliary frame is sleeved on the outer side of the grinding roller, and the auxiliary frame is provided with a guide assembly, and the outer end of the guide assembly is in contact with the grinding roller.

[0014] As an optimization, one end of the S-shaped wire-feeding channel away from the other clamping block is rotatably connected to a second detection block, and a second pressure sensor is arranged between the second detection block and the clamping block; A tension detection module is arranged between the tightening block arranged adjacent to the other clamping block and the tightening rod.

[0015] The present invention provides a corrosion-resistant ultra-high modulus glass fiber direct yarn sizing agent for oil pipelines, which has the following advantages: The ultra-high modulus glass fiber direct yarn of the present application uses bisphenol A epoxy emulsions of different molecular weights as film-forming agents, and uses urea-based silane coupling agents and aminosilane coupling agents as coupling agents. The ultra-high modulus glass fiber direct yarn produced by using the sizing agent of the present invention not only has ultra-high impact strength, but also has good wear resistance and less hairiness, and is very suitable for winding processes under high tension; it can be quickly and completely impregnated in epoxy resin; it has very good compatibility with epoxy resin, and the product meets the mechanical properties of yarn for oil pipelines; The testing device of the present application can simultaneously test the wear resistance and tensile strength of glass fiber, and different tests do not affect each other, and is convenient and quick to use; At the same time, the grinding roller of the present application is provided with a variable diameter section, and the tension between the two can be adjusted by adjusting the contact position of the glass fiber direct yarn and the grinding roller, thereby achieving adjustment of the test parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axial schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the back axial side of the present invention.

[0018] Figure 3 It is a top view schematic diagram of the present invention.

[0019] Figure 4 It is a main schematic diagram of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the AA section structure.

[0021] Among them, 1. connecting seat, 2. clamping block, 3. grinding roller, 4. reducing section, 5. supporting seat, 6. first lifting assembly, 7. second lifting assembly, 8. auxiliary frame, 9. first wire feeding channel, 10. second wire feeding channel, 11. first fixing assembly, 12. second fixing assembly, 13. first detection block, 14. first pressure sensor, 15. S-type wire feeding channel, 16. tightening rod, 17. tightening block, 18. second detection block, 19. second pressure sensor, 20. tension detection module, 21. guide assembly. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] A super high modulus glass fiber direct yarn sizing agent for corrosion-resistant petroleum pipelines comprises the following components by weight: 10-20% coupling agent, 50-85% film-forming agent, 8-22% lubricant, 0.2-2% anti-aging agent and 0.4-2% pH regulator.

[0024] The coupling agent includes urea-based silane coupling agent and amino-based silane coupling agent, and the film-forming agent includes a mixture of any two or more bisphenol A epoxy emulsions with a molecular weight between 350 and 7000, wherein the urea-based silane coupling agent and the amino-based silane coupling agent are mixed in a ratio of 1:3.

[0025] The lubricant is an ammonium salt type cationic lubricant, the anti-aging agent is an ammonium salt, and the pH regulator is acetic acid, phosphoric acid, formic acid or citric acid. Comparative Example 1 uses a urea-based silane coupling agent, Comparative Example 2 uses an aminosilane coupling agent, and Comparative Example 3 uses a mixture of a urea-based silane coupling agent and an aminosilane coupling agent in a ratio of 1:1, and the rest is the same as Example 1. Comparative Example 4 uses Y-1018H epoxy emulsion as a film-forming agent, Example 1 uses a mixture of YPE-20WE0254 and Y-1018H, Example 2 uses a mixture of WEP-3559 and WEP-3560, and Example 3 uses a mixture of YPE-20WE0254, Y-1018H, WEP-3559, and WEP-3560.

[0026] The same batch of ultra-high modulus glass fibers were divided into 7 identical parts, and were impregnated with the sizing agents of the above-mentioned Examples 1-3 and Comparative Examples 1-4. After impregnation, the products were subjected to performance tests. The tensile strength and abrasion rate of the glass fiber direct yarn were tested by the testing device of the present application, and the performance results were measured as shown in the following table: According to the above table, the glass fiber products impregnated with the impregnating agent of the present application have less hairiness and higher tensile strength and abrasion resistance, while the products using a single type of coupling agent or a single molecular weight film-forming agent have relatively weak performance.

[0027] like Figure 1-Figure 5 As shown, the testing device includes a connecting part for connecting two ends of the glass fiber direct yarn so that the glass fiber direct yarn is arranged in a ring shape; A tensile test assembly, comprising two clamping blocks 2, wherein the two clamping blocks 2 are distributed along the length direction of the glass fiber direct yarn and can stretch the glass fiber direct yarn between the two clamping blocks 2; Grinding test part: The glass fiber direct yarn is wrapped around the outside of the grinding test part, and the grinding test part includes a plurality of grinding rollers 3, the lower part of the grinding roller 3 is a cylindrical section, and the upper part is a variable diameter section 4, the diameter of the variable diameter section 4 gradually increases from bottom to top, and the connecting part and the tensile test assembly can drive the glass fiber direct yarn to move from the cylindrical section to the variable diameter section 4.

[0028] The glass fiber direct yarn is polished by the cylindrical section and the variable diameter section 4 of the polishing roller 3. A plurality of polishing areas can be evenly arranged along the height direction of the polishing roller 3. The friction coefficients of different polishing areas are different, so as to facilitate the polishing of the glass fiber direct yarn with different friction coefficients.

[0029] like Figure 1 As shown, it also includes a support seat 5, and the connecting part, the tensile test part and the grinding test part are all arranged on the upper side of the support seat 5; The support seat 5 is provided with a first lifting assembly 6 and a second lifting assembly 7 . The first lifting assembly 6 is used to drive the connection part to rise and fall. The second lifting assembly 7 is connected to an auxiliary frame 8 . The tensile testing part is connected to the auxiliary frame 8 .

[0030] The support seat 5 is used to support the connection part, the tensile test part and the grinding test part. The first lifting assembly 6 is used to support and drive the connection part. The first lifting assembly 6 and the second lifting assembly are lifted and lowered synchronously. The first lifting assembly 6 includes a first lifting motor and a first lifting screw rod, and the first lifting screw rod is threadedly connected to the connection part; the second lifting assembly 7 includes a second lifting motor and a second lifting screw rod, and the second lifting screw rod is threadedly connected to the tensile test part. In order to ensure the normal lifting and lowering of the connection part and the tensile test part, a guide rod can also be set on the basis of the lifting screw rod.

[0031] The connecting part includes a connecting seat 1, and a first wire passage 9 and a second wire passage 10 are arranged inside the connecting seat 1. The first wire passage 9 and the second wire passage 10 are arranged in parallel, and the first wire passage 9 and the second wire passage 10 are respectively used to accommodate the two ends of the glass fiber direct yarn; like Figure 5 As shown, a plurality of first fixing components 11 and a plurality of second fixing components 12 are arranged inside the connecting seat 1, the first fixing component 11 can extend into the first wire feeding channel 9 to tighten and fix the glass fiber direct yarn, the second fixing component 12 can extend into the second wire feeding channel 10 to fix the glass fiber direct yarn, one end of the first wire feeding channel 9 and the other end of the second wire feeding channel 10 are rotatably connected with a first detection block 13, the first detection block 13 is in contact with the glass fiber direct yarn, and a first pressure sensor 14 is connected between the first detection block 13 and the connecting seat 1.

[0032] The two ends of the glass fiber direct yarn are alternately arranged inside the first wire feeding channel 9 and the second wire feeding channel 10. The first fixing component 11 includes a first telescopic rod and a first fixed block. When the first telescopic rod is extended, the first fixed block can be extended into the first wire feeding channel 9 to press one end of the glass fiber direct yarn; the second fixing component 12 includes a second telescopic rod and a second fixed block. When the second telescopic rod is extended, the second fixed block can be extended into the second wire feeding channel 10 to press the other end of the glass fiber direct yarn.

[0033] The first wire channel 9 and the second wire channel 10 are arranged in parallel, and the first fixed component 11 and the second fixed component 12 are arranged obliquely, so that the extended end of the first fixed component 11 and the extended end of the second fixed component 12 are inclined toward the end of the glass fiber direct yarn, and the first detection block 13 is located at one end of the first wire channel 9 and the second wire channel 10 away from the end of the glass fiber direct yarn, and the glass fiber direct yarn can contact the first detection block 13 before entering the first wire channel 9 or the second wire channel 10.

[0034] like Figure 5As shown, an S-shaped wire feeding channel 15 is arranged inside the clamping block 2, and two tightening rods 16 are respectively arranged on both sides of the bending part of the S-shaped wire feeding channel 15, and tightening blocks 17 are arranged at the extended ends of the two tightening rods 16, and the two tightening rods 16 are arranged in parallel.

[0035] A linear tensile test section is formed between the two clamping blocks 2. The wire feeding channels of the two clamping blocks 2 are arranged opposite to each other. The axis of the clamping rod 16 is perpendicular to the tangent of the relative position of the wire feeding channel. The two clamping rods 16 are arranged parallel to each other.

[0036] like Figure 1 As shown, the number of the grinding rollers 3 is at least 2, the tensile test assembly is located between two oppositely disposed grinding rollers 3, and the tensile test assembly and the connecting portion are disposed oppositely on both sides of the grinding test portion; A grinding motor is connected to the axial direction of the grinding roller 3 , and the grinding motor is used to drive the grinding roller 3 to rotate.

[0037] When the glass fiber direct yarn moves upward along the height direction of the grinding roller 3, the glass fiber direct yarn is tensioned, so that the contact strength between the glass fiber direct yarn and the grinding roller 3 is increased.

[0038] like Figure 1 As shown, the auxiliary frame 8 is sleeved on the outer side of the grinding roller 3 , and the auxiliary frame 8 is provided with a guide component 21 , and the outer end of the guide component 21 is in contact with the grinding roller 3 .

[0039] The auxiliary frame 8 includes two connecting frames located outside the grinding roller 3, a connecting rod arranged between the connecting frame and the clamping block 2, and a telescopic rod arranged between the connecting frame and the second lifting assembly 7. The guide assembly 21 is arranged inside the connecting frame. The outer end of the guide assembly 21 is provided with a ball so that the guide assembly 21 can move along the grinding roller 3. When the auxiliary frame 8 moves upward, the guide assembly 21 is supported on the outside of the grinding roller 3. As the distance between the two connecting frames increases, the two clamping blocks 2 are tightened, and the tensile test section can be tested. At the same time, the guide assembly 21 is located on the lower side of the glass fiber direct yarn, which does not affect the movement of the glass fiber direct yarn along the guide roller.

[0040] like Figure 5 As shown, one end of the S-shaped wire-feeding channel 15 away from the other clamping block 2 is rotatably connected to a second detection block 18, and a second pressure sensor 19 is provided between the second detection block 18 and the clamping block 2; A tension detection module 20 is provided between the tension block 17 disposed adjacent to the other clamping block 2 and the tension rod 16. The tension detection module 20 may be a pressure sensor, a tension sensor or a tension pressure sensor.

[0041] The second detection block 18 is located on the inner side of the glass fiber direct yarn and is in contact with the glass fiber direct yarn.

[0042] How to use the test device: First, the glass fiber direct yarn is passed through the S-shaped wire passage 15 of the two clamping blocks 2, and the two ends of the glass fiber direct yarn are respectively arranged in the first wire passage 9 and the second wire passage 10 after passing through the grinding roller 3, and the two ends of the glass fiber direct yarn are tightened to make the glass fiber direct yarn taut, so that the values ​​detected by the first pressure sensor 14 and the second pressure sensor 19 are equal, and the glass fiber direct yarn is tightened and fixed by the first fixing component and the second fixing component 12 to make the glass fiber direct yarn annular, and the tightening rod 16 is extended, and the two ends of the tension detection section are tightened and fixed by the tightening block 17; Tensile strength test: The first lifting assembly 6 and the second lifting assembly 7 are operated to move the glass fiber direct yarn upward along the grinding roller 3, and the glass fiber direct yarn is gradually tensioned. When the tension detection section is broken, the value of the tension detection module 20 is recorded; After the tensile strength test is completed, the wear resistance test can be carried out. At this time, the glass fiber direct yarn is fixed by the clamping block 2 and the connecting part, and the grinding roller 3 is driven to rotate by the grinding motor to make the grinding roller 3 rub the glass fiber direct yarn, and the wear condition and time of the glass fiber direct yarn can be recorded.

[0043] The grinding roller 3 of the present application can support the glass fiber direct yarn, and can also assist in adjusting the tension state of the glass fiber direct yarn and grinding the glass fiber direct yarn, so as to achieve the tensile strength test and wear resistance test of the glass fiber direct yarn. The surface friction strength of the grinding roller 3, the diameter change of the diameter reducing section 4 of the grinding roller 3, and the test standard of the grinding strength can all be set according to actual needs, and will not be repeated here.

[0044] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any ultra-high modulus glass fiber direct yarn impregnating agent and testing device for corrosion-resistant petroleum pipelines that conform to the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A sizing agent for ultra-high modulus glass fiber direct yarn for corrosion-resistant petroleum pipelines, characterized in that: The composition includes the following components by weight: 10-20% coupling agent, 50-85% film-forming agent, 8-22% lubricant, 0.2-1.2% anti-aging agent and 0.4-2% pH regulator.

2. The ultra-high modulus glass fiber direct yarn sizing for corrosion-resistant petroleum pipeline according to claim 1, characterized in that: The coupling agent includes urea-based silane coupling agent and amino-based silane coupling agent, and the film-forming agent includes a mixture of any two or more bisphenol A epoxy emulsions with molecular weights between 350 and 7000.

3. The ultra-high modulus glass fiber direct yarn sizing for corrosion-resistant petroleum pipeline according to claim 1, characterized in that: The lubricant is an ammonium salt type cationic lubricant, the anti-aging agent is an ammonium salt, and the pH regulator is acetic acid, phosphoric acid, formic acid or citric acid.

4. A testing device for testing the excess modulus glass fiber direct yarn obtained by impregnation with the sizing agent according to any one of claims 1 to 3, characterized in that: It includes a connecting part, which is used to connect the two ends of the glass fiber direct yarn so that the glass fiber direct yarn is arranged in a ring shape; A tensile testing assembly comprises two clamping blocks (2), wherein the two clamping blocks (2) are distributed along the length direction of the glass fiber direct yarn and are capable of stretching the glass fiber direct yarn between the two clamping blocks (2); Grinding test part: The glass fiber direct yarn is wrapped around the outside of the grinding test part, and the grinding test part includes a plurality of grinding rollers (3). The lower part of the grinding roller (3) is a cylindrical section, and the upper part is a variable diameter section (4). The diameter of the variable diameter section (4) gradually increases from bottom to top. The connecting part and the tensile test assembly can drive the glass fiber direct yarn to move from the cylindrical section to the variable diameter section (4).

5. The testing device according to claim 4, characterized in that: It also comprises a support seat (5), wherein the connection part, the tensile test part and the grinding test part are all arranged on the upper side of the support seat (5); The support seat (5) is provided with a first lifting assembly (6) and a second lifting assembly (7), the first lifting assembly (6) is used to drive the connection part to rise and fall, the second lifting assembly (7) is connected to an auxiliary frame (8), and the tensile test part is connected to the auxiliary frame (8).

6. The testing device according to claim 4, characterized in that: The connecting part comprises a connecting seat (1), a first wire passage (9) and a second wire passage (10) are arranged inside the connecting seat (1), the first wire passage (9) and the second wire passage (10) are arranged in parallel, and the first wire passage (9) and the second wire passage (10) are respectively used to accommodate the two ends of the glass fiber direct yarn; The connection seat (1) is provided with a plurality of first fixing components (11) and a plurality of second fixing components (12). The first fixing component (11) can extend into the first wire-feeding channel (9) to tighten and fix the glass fiber direct yarn. The second fixing component (12) can extend into the second wire-feeding channel (10) to fix the glass fiber direct yarn. One end of the first wire-feeding channel (9) and the other end of the second wire-feeding channel (10) are both rotatably connected to a first detection block (13). The first detection block (13) is in contact with the glass fiber direct yarn. A first pressure sensor (14) is connected between the first detection block (13) and the connection seat (1).

7. The testing device according to claim 4, characterized in that: An S-shaped wire-feeding channel (15) is arranged inside the clamping block (2), two tightening rods (16) are arranged on both sides of the bending part of the S-shaped wire-feeding channel (15), and tightening blocks (17) are arranged at the extended ends of the two tightening rods (16), and the two tightening rods (16) are arranged in parallel.

8. The testing device according to claim 4, characterized in that: The number of the grinding rollers (3) is at least two, the tensile test assembly is located between two oppositely disposed grinding rollers (3), and the tensile test assembly and the connecting portion are disposed oppositely on two sides of the grinding test portion; A grinding motor is connected to the axial direction of the grinding roller (3), and the grinding motor is used to drive the grinding roller (3) to rotate.

9. The testing device according to claim 5, characterized in that: The auxiliary frame (8) is sleeved on the outer side of the grinding roller (3), and the auxiliary frame (8) is provided with a guide component, and the outer end of the guide component is in contact with the grinding roller (3).

10. The testing device according to claim 7, characterized in that: One end of the S-shaped wire-feeding channel (15) away from the other clamping block (2) is rotatably connected to a second detection block (18), and a second pressure sensor (19) is provided between the second detection block (18) and the clamping block (2); A tension detection module (20) is provided between a tightening block (17) arranged adjacent to the other clamping block (2) and the tightening rod (16).

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