Impact-resistant electric power pipe material and preparation method thereof

Abstract

The present invention provides an impact-resistant power pipe material and a preparation method thereof, relating to the technical field of power pipes. The material is made from the following raw materials, calculated by weight: 60-70 parts of PTT resin, 10-15 parts of amino-containing polyaryletherketonesulfone, 2-4 parts of a compatibilizer, 1-3 parts of a coupling agent, 3-5 parts of epoxidized SBS, 1-2 parts of phosphorus pentoxide, 0.5-0.8 parts of polyphosphoric acid, 1-3 parts of a lubricant, 0.5-1 parts of an antioxidant, 5-8 parts of a plasticizer, and 10-20 parts of carbon fiber. The impact-resistant power pipe material disclosed herein has high impact strength and excellent mechanical properties, heat aging resistance, and corrosion resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power pipes, and in particular to an impact-resistant electric power pipe material and a preparation method thereof. Background Art

[0002] The development of electric energy is crucial to national security and livelihoods. With the sustained and rapid economic and social development of my country, electricity demand has also entered a period of rapid growth, leading to rapid development in the power cable industry. When installing power cables and other cable equipment, it is often necessary to bury the cables in power conduits, which serve as a crucial component for protecting the equipment. Ideally, power conduits should possess excellent impact resistance, heat aging resistance, and corrosion resistance.

[0003] The mechanical strength and impact resistance of existing power pipe materials are limited, and their heat aging resistance and corrosion resistance need to be further improved. To address these issues, patent document CN104151703B discloses an MPP power pipe with high heat resistance. Its manufacturing materials include the following components by weight: MPP: 100 parts; CaCO3: 20-40 parts; plasticizer: 8-12 parts; stabilizer: 2.0-3.6 parts; flux: 5-10 parts; lubricant: 6-8 parts; CPE resin: 4-8 parts; impact modifier: 4-6 parts; sepiolite: 2-3 parts; magnesium-aluminum hydrotalcite colloid: 3-4 parts; vinyltrimethoxysilane: 1.2-2.3 parts; polyisobutylene succinimide: 1-2 parts; antioxidant: 0.5-1.0 part; titanium dioxide: 0.3-0.5 parts; 1,4-butanediol: 10-15 parts; and deionized water: 10-15 parts. The invention also provides a method for preparing the power pipe material. The power pipe of this invention has high heat resistance, low production cost, and is environmentally friendly and pollution-free. However, the corrosion resistance, mechanical properties, and aging resistance of the power pipe need to be further improved.

[0004] Therefore, the development of an impact-resistant electric power pipe material and its preparation method with high impact strength, excellent mechanical properties, heat aging resistance and corrosion resistance meets market demand, has broad market value and application prospects, and is of great significance to promoting the development of the electric power pipe field. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an impact-resistant electric power pipe material having high impact strength, excellent mechanical properties, heat aging resistance and corrosion resistance, and a preparation method thereof.

[0006] The present invention can be achieved through the following technical solutions:

[0007] The impact-resistant electric power pipe material according to the present invention is made of the following raw materials in parts by weight: 60-70 parts of PTT resin, 10-15 parts of amino-containing polyaryletherketonesulfone, 2-4 parts of compatibilizer, 1-3 parts of coupling agent, 3-5 parts of epoxidized SBS, 1-2 parts of phosphorus pentoxide, 0.5-0.8 parts of polyphosphoric acid, 1-3 parts of lubricant, 0.5-1 parts of antioxidant, 5-8 parts of plasticizer, and 10-20 parts of carbon fiber.

[0008] Preferably, the average diameter of the carbon fiber is 5-12 μm, and the aspect ratio is (20-30):1.

[0009] Preferably, the plasticizer is at least one of tributyl citrate and epoxidized soybean oil.

[0010] Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant 1098, and antioxidant 168.

[0011] Preferably, the lubricant is at least one of pentaerythritol ester and ethylene bis stearamide.

[0012] Preferably, there is no special requirement for the source of the epoxidized SBS. In one embodiment of the present invention, the epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in Example 1 of Chinese invention patent application number 201810344598.4.

[0013] Preferably, the coupling agent is at least one of silane coupling agent KH550, silane coupling agent KH560, and silane coupling agent KH570.

[0014] Preferably, the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH.

[0015] Preferably, there is no special requirement for the source of the amino-containing polyaryl ether ketone sulfone. In one embodiment of the present invention, the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9.

[0016] Preferably, the PTT resin is PTT3301NC010 resin.

[0017] The present invention also provides a method for preparing the impact-resistant power pipe material, comprising: uniformly mixing the raw materials by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant power pipe material.

[0018] Preferably, the extrusion molding temperature is 240-265° C., and the main screw speed of the twin-screw extruder is 190-450 r / min.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The preparation method of the impact-resistant electric power pipe material disclosed in the present invention has low dependence on equipment, low energy consumption, simple process, short process and preparation cycle, high product qualification rate, meets the requirements of continuous industrial production, and has high promotion and application value.

[0021] (2) The impact-resistant electric power pipe material disclosed in the present invention is made of the following raw materials, calculated by weight: 60-70 parts of PTT resin, 10-15 parts of amino-containing polyaryletherketonesulfone, 2-4 parts of compatibilizer, 1-3 parts of coupling agent, 3-5 parts of epoxidized SBS, 1-2 parts of phosphorus pentoxide, 0.5-0.8 parts of polyphosphoric acid, 1-3 parts of lubricant, 0.5-1 parts of antioxidant, 5-8 parts of plasticizer, and 10-20 parts of carbon fiber. Through the mutual coordination and joint action of the raw materials, the electric power pipe material has high impact strength, excellent mechanical properties, heat aging resistance, and corrosion resistance.

[0022] (3) The impact-resistant electric power pipe material disclosed in the present invention uses PTT resin and amino-containing poly(aryletherketonesulfone) as its base material, combining the excellent properties of both, resulting in the manufactured electric power pipe material having excellent impact resistance and mechanical properties, and endowing the material with excellent corrosion resistance and aging resistance. The addition of epoxidized SBS further improves the impact resistance. By selecting the above raw materials, the ester, poly(aryletherketonesulfone), and SBS structures are simultaneously introduced into the manufactured material structure. Under the multiple effects of electronic effect, steric effect, and conjugation effect, the above-mentioned properties of the material are further improved.

[0023] (4) In the impact-resistant electric pipe material disclosed in the present invention, the epoxy groups on the PTT resin can react chemically with the sulfonic acid groups on the amino-containing polyaryl ether ketone sulfone under the catalytic action of phosphorus pentoxide and polyphosphoric acid. At the same time, the amino groups on the amino-containing polyaryl ether ketone sulfone can also undergo epoxy ring-opening reaction with epoxidized SBS to form an interpenetrating network structure, which effectively improves the impact strength, mechanical properties, heat aging resistance and corrosion resistance of the electric pipe material. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the product of the present invention is further described in detail below with reference to embodiments.

[0025] Example 1

[0026] An impact-resistant electric pipe material is made of the following raw materials, measured in parts by weight: 60 parts of PTT resin, 10 parts of amino-containing polyaryletherketonesulfone, 2 parts of a compatibilizer, 1 part of a coupling agent, 3 parts of epoxidized SBS, 1 part of phosphorus pentoxide, 0.5 parts of polyphosphoric acid, 1 part of a lubricant, 0.5 parts of an antioxidant, 5 parts of a plasticizer, and 10 parts of carbon fiber.

[0027] The average diameter of the carbon fiber is 5 μm, and the aspect ratio is 20:1; the plasticizer is tributyl citrate; the antioxidant is antioxidant 1010; the lubricant is pentaerythritol ester; the epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in Example 1 of the Chinese invention patent application number 201810344598.4; the coupling agent is silane coupling agent KH550; the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH; the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9; the PTT resin is PTT3301NC010 resin.

[0028] A method for preparing the impact-resistant electric power pipe material comprises: uniformly mixing the raw materials according to parts by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant electric power pipe material; the extrusion molding temperature is 240-265°C, and the main screw speed of the twin-screw extruder is 190r / min.

[0029] Example 2

[0030] An impact-resistant electric pipe material is made of the following raw materials, measured in parts by weight: 63 parts of PTT resin, 11 parts of amino-containing polyaryletherketonesulfone, 2.5 parts of a compatibilizer, 1.5 parts of a coupling agent, 3.5 parts of epoxidized SBS, 1.2 parts of phosphorus pentoxide, 0.6 parts of polyphosphoric acid, 1.5 parts of a lubricant, 0.7 parts of an antioxidant, 6 parts of a plasticizer, and 12 parts of carbon fiber.

[0031] The average diameter of the carbon fiber is 7 μm, and the aspect ratio is 23:1; the plasticizer is epoxidized soybean oil; the antioxidant is antioxidant 1098; the lubricant is ethylene bisstearamide; the epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in Example 1 of the Chinese invention patent application number 201810344598.4; the coupling agent is silane coupling agent KH560; the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH; the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9; the PTT resin is PTT3301NC010 resin.

[0032] A method for preparing the impact-resistant electric power pipe material comprises: uniformly mixing the raw materials according to parts by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant electric power pipe material; the extrusion molding temperature is 240-265°C, and the main screw speed of the twin-screw extruder is 250r / min.

[0033] Example 3

[0034] An impact-resistant electric pipe material is made of the following raw materials, measured in parts by weight: 65 parts of PTT resin, 13 parts of amino-containing polyaryletherketonesulfone, 3 parts of a compatibilizer, 2 parts of a coupling agent, 4 parts of epoxidized SBS, 1.5 parts of phosphorus pentoxide, 0.65 parts of polyphosphoric acid, 2 parts of a lubricant, 0.8 parts of an antioxidant, 6.5 parts of a plasticizer, and 15 parts of carbon fiber.

[0035] The average diameter of the carbon fiber is 9 μm, and the aspect ratio is 25:1; the plasticizer is tributyl citrate; the antioxidant is antioxidant 168; the lubricant is pentaerythritol ester; the epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in Example 1 of the Chinese invention patent application number 201810344598.4; the coupling agent is silane coupling agent KH570; the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH; the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9; the PTT resin is PTT3301NC010 resin.

[0036] A method for preparing the impact-resistant electric power pipe material comprises: uniformly mixing the raw materials according to parts by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant electric power pipe material; the extrusion molding temperature is 240-265°C, and the main screw speed of the twin-screw extruder is 320r / min.

[0037] Example 4

[0038] An impact-resistant electric pipe material is made of the following raw materials, measured in parts by weight: 68 parts of PTT resin, 14 parts of amino-containing polyaryletherketonesulfone, 3.5 parts of a compatibilizer, 2.5 parts of a coupling agent, 4.5 parts of epoxidized SBS, 1.8 parts of phosphorus pentoxide, 0.75 parts of polyphosphoric acid, 2.5 parts of a lubricant, 0.9 parts of an antioxidant, 7.5 parts of a plasticizer, and 18 parts of carbon fiber.

[0039] The average diameter of the carbon fiber is 11 μm, and the aspect ratio is 28:1; the plasticizer is a mixture of tributyl citrate and epoxidized soybean oil in a mass ratio of 3:5; the antioxidant is a mixture of antioxidant 1010, antioxidant 1098, and antioxidant 168 in a mass ratio of 1:1:3; the lubricant is a mixture of pentaerythritol ester and ethylene bis stearamide in a mass ratio of 1:3; the epoxidized SBS is prepared according to Example 1 of the Chinese invention patent application number 201810344598.4 The epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in the specification; the coupling agent is a mixture of silane coupling agent KH550, silane coupling agent KH560, and silane coupling agent KH570 in a mass ratio of 1:3:5; the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH; the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9; the PTT resin is PTT3301NC010 resin.

[0040] A method for preparing the impact-resistant electric power pipe material comprises: uniformly mixing the raw materials according to parts by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant electric power pipe material; the extrusion molding temperature is 240-265°C, and the main screw speed of the twin-screw extruder is 370r / min.

[0041] Example 5

[0042] An impact-resistant electric power pipe material is made of the following raw materials, measured in parts by weight: 70 parts of PTT resin, 15 parts of amino-containing polyaryletherketonesulfone, 4 parts of a compatibilizer, 3 parts of a coupling agent, 5 parts of epoxidized SBS, 2 parts of phosphorus pentoxide, 0.8 parts of polyphosphoric acid, 3 parts of a lubricant, 1 part of an antioxidant, 8 parts of a plasticizer, and 20 parts of carbon fiber.

[0043] The average diameter of the carbon fiber is 12 μm, and the aspect ratio is 30:1; the plasticizer is tributyl citrate; the antioxidant is antioxidant 1010; the lubricant is pentaerythritol ester; the epoxidized SBS is prepared according to the preparation method of epoxidized SBS (eSBS46) in Example 1 of the Chinese invention patent application number 201810344598.4; the coupling agent is silane coupling agent KH560; the compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH; the amino-containing polyaryl ether ketone sulfone is prepared according to the method of Example 1 in patent document ZL202010227808.9; the PTT resin is PTT3301NC010 resin.

[0044] A method for preparing the impact-resistant electric power pipe material comprises: uniformly mixing the raw materials according to parts by weight to obtain a mixture, and then adding the mixture to a twin-screw extruder for extrusion molding to obtain the impact-resistant electric power pipe material; the extrusion molding temperature is 240-265°C, and the main screw speed of the twin-screw extruder is 450r / min.

[0045] Comparative Example 1

[0046] An impact-resistant electric power pipe material, whose formula and preparation method are basically the same as those in Example 1, except that no epoxidized SBS is added.

[0047] Comparative Example 2

[0048] An impact-resistant electric power pipe material, whose formula and preparation method are basically the same as those of Example 1, except that no amino-containing polyaryletherketonesulfone is added.

[0049] At the same time, in order to evaluate the specific technical effects of the impact-resistant electric power pipe material of the present invention, relevant performance tests were carried out on the impact-resistant electric power pipe materials in the embodiments of the present invention and the comparative examples. The test results are shown in Table 1. The test method refers to the provisions on medium-sized casings in JG3050-1998 and GB / T5349-2005; the aging resistance is measured by placing each product in an artificial acceleration box at 85°C for artificial accelerated aging for 100 hours, cooling it to room temperature, and measuring the retention rate of tensile strength after aging. The larger the value, the higher the heat aging resistance.

[0050] Table 1

[0051]

[0052] As can be seen from Table 1, the impact-resistant electric pipe material disclosed in the embodiment of the present invention has better impact resistance, heat aging resistance and mechanical properties than the comparative example product. The use of epoxidized SBS and amino-containing polyaryletherketonesulfone is beneficial to improving the above properties.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A shock-resistant power pipe material, characterized in that: The invention is prepared from the following raw materials in parts by weight: 60-70 parts of PTT resin, 10-15 parts of amino-containing polyaryletherketonesulfone, 2-4 parts of compatibilizer, 1-3 parts of coupling agent, 3-5 parts of epoxidized SBS, 1-2 parts of phosphorus pentoxide, 0.5-0.8 parts of polyphosphoric acid, 1-3 parts of lubricant, 0.5-1 parts of antioxidant, 5-8 parts of plasticizer and 10-20 parts of carbon fiber.

2. The impact-resistant electric power pipe material according to claim 1, characterized in that: The average diameter of the carbon fiber is 5-12 μm, and the aspect ratio is (20-30):

1.

3. The impact-resistant electric power pipe material according to claim 1, characterized in that: The plasticizer is at least one of tributyl citrate and epoxidized soybean oil.

4. The impact-resistant electric power pipe material according to claim 1, characterized in that: The antioxidant is at least one of antioxidant 1010, antioxidant 1098, and antioxidant 168.

5. The impact-resistant electric power pipe material according to claim 1, characterized in that: The lubricant is at least one of pentaerythritol ester and ethylene bis stearamide.

6. The impact-resistant electric power pipe material according to claim 1, characterized in that: The coupling agent is at least one of silane coupling agent KH550, silane coupling agent KH560, and silane coupling agent KH570.

7. The impact-resistant electric power pipe material according to claim 1, characterized in that: The compatibilizer is maleic anhydride grafted polypropylene PP-g-MAH.

8. The impact-resistant electric power pipe material according to claim 1, characterized in that: The PTT resin is PTT3301NC010 resin.

9. A method for preparing the impact-resistant electric power pipe material according to any one of claims 1 to 8, characterized in that: include: The raw materials are mixed uniformly according to parts by weight to obtain a mixture material, and then the mixture material is added into a twin-screw extruder for extrusion molding to obtain an impact-resistant power pipe material.

10. The method for preparing the impact-resistant electric power pipe material according to claim 9, characterized in that: The extrusion molding temperature is 240-265° C., and the main screw speed of the twin-screw extruder is 190-450 r / min.

Images