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A wear-resistant and anti-corrosion PVC plastic pipe set and preparation method thereof

A technology of plastic pipe fittings and plastic pipes, applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, siphon pipes, etc., can solve the problem of low heat resistance and aging resistance of PVC, material omission at the joint of plastic pipe kits, and aging and brittleness of pipe fittings cracking and other problems, to achieve high anti-oxidation performance, to achieve the effect of anti-oxidation performance and high strength

Active Publication Date: 2021-09-28
YOSHIHIRO COMM EQUIP GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic pipe kits generally include connectors and plastic pipe fittings. In order to facilitate disassembly, the connectors and plastic pipe fittings are usually fixed by threaded connections. Inadvertently applied reverse force will easily cause the plastic pipe fittings to come out of the joint, and then cause material leakage at the joint of the plastic pipe set, which requires frequent inspection and tightening, which is inconvenient to use and increases labor intensity
[0003] Due to the high corrosion resistance of PVC, it is usually widely used in oil transportation tanks and acid-base transportation pipes, but the heat resistance and aging resistance of PVC itself are low, and the pipe fittings will age when exposed to the sun for a long time become brittle and crack

Method used

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  • A wear-resistant and anti-corrosion PVC plastic pipe set and preparation method thereof
  • A wear-resistant and anti-corrosion PVC plastic pipe set and preparation method thereof
  • A wear-resistant and anti-corrosion PVC plastic pipe set and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A wear-resistant and anti-corrosion PVC plastic pipe kit such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, it includes a pipe joint 1 and a plastic pipe 2 connected and fixed through the pipe joint 1;

[0036] The pipe fitting 1 and the plastic pipe fitting 2 are fixed by screw connection;

[0037] The outer surface of the side wall of each pipe fitting 1 is close to the connection with the plastic pipe fitting 2. A limit fixing table 3 is provided, and an elastic limiter seat 4 is installed in the limiter fixation table 3. Limit and fix between the plastic pipe fitting 2;

[0038] The inner surface of the side wall of the joint end of the pipe joint 1 is provided with internal threads, and the inner surface of the side wall of the joint end is provided with a limit hole 11 extending to the inner cavity of the pipe fitting. At the same time, the outer surface of the side wall of one end of the plastic pipe fitting 2 is provided with an ex...

Embodiment 2

[0046] The specific preparation process of the unsaturated antioxidant is as follows: Add 12.2g of salicylaldehyde into 100mL of ether and stir to dissolve, then add 7.1g of acrylamide to it, heat up to 60-70°C and stir for 8-10h, then carry out vacuum distillation , to obtain unsaturated antioxidants.

Embodiment 3

[0048] A wear-resistant and anti-corrosion PVC plastic pipe kit, in which the pipe joints and plastic pipe fittings are prepared from high-temperature-resistant and anti-corrosion plastic masterbatches, wherein the specific preparation process of the high-temperature-resistant and anti-corrosion plastic masterbatches is as follows:

[0049] In the first step, 8.5kg of PVC resin and 100g of allyl mercaptan are simultaneously added to a screw extruder for melt extrusion to obtain a modified PVC material;

[0050] In the second step, the modified PVC material prepared in the first step, the unsaturated antioxidant prepared in 0.4kg embodiment 2, 0.2kg allyltrimethylsilane, 0.5kg azobisisobutyronitrile and 0.2kg The dispersant is added to the reaction vessel at the same time, the temperature is raised to 140-150°C, stirred and mixed for 2-3 hours, then the material is cooled and discharged, and the material is put into a single-screw extruder for melt extrusion and granulation to o...

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Abstract

The invention discloses a wear-resistant and anti-corrosion PVC plastic pipe set, which comprises a pipe fitting joint and a plastic pipe fitting connected and fixed through the pipe fitting joint. The outer surface of the side wall of each pipe fitting joint is close to the joint with the plastic pipe fitting and is provided with a limited fixing platform. , the inner surface of the side wall of the joint end of the pipe fitting has a limit hole extending to the inner cavity of the pipe fitting, the limit fixing platform is located directly above the limit hole, and the outer surface of the side wall of the plastic pipe fitting is provided with a hole corresponding limit slot. In the present invention, a limit fixing platform is arranged on the pipe joint, and an elastic limit seat is installed on the limit fixing platform, and the limit rod in the elastic limit seat is directly inserted into the groove on the surface of the plastic pipe through the pipe joint. Among them, it can effectively prevent the movement of the plastic pipe fittings, so that the reverse force accidentally applied during the long-term use of the pipe fittings will not easily cause the plastic pipe fittings to come out of the joints due to vibration, movement, etc., without frequent maintenance, reducing labor strength.

Description

technical field [0001] The invention belongs to the field of plastic pipe kit preparation, and relates to a wear-resistant and anti-corrosion PVC plastic pipe kit and a preparation method thereof. Background technique [0002] Plastic pipe kits generally include connectors and plastic pipe fittings. In order to facilitate disassembly, the connectors and plastic pipe fittings are usually fixed by threaded connections. Inadvertently applied reverse force will easily cause the plastic pipe fittings to come out of the joint, and then cause material leakage at the joint of the plastic pipe set, which requires frequent inspection and tightening, which is inconvenient to use and increases labor intensity. [0003] Due to the high corrosion resistance of PVC, it is usually widely used in oil transportation tanks and acid-base transportation pipes, but the heat resistance and aging resistance of PVC itself are low, and the pipe fittings will age when exposed to the sun for a long tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L43/02F16L47/16C08J3/22
CPCC08J3/226C08J2327/06C08J2427/06F16L43/02F16L47/16
Inventor 丁光泮丁宁
Owner YOSHIHIRO COMM EQUIP GRP CO LTD
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