High-toughness polyethylene plastic pipe and preparation method thereof

Abstract

The invention discloses a high-toughness polyethylene plastic pipe and a preparation method thereof. Through dodecylbenzene sulfonic acid, dissolution of 8-hydroxyquinoline can be better promoted, 8-hydroxyquinoline and generated 8-hydroxyquinoline copper can be better dispersed, the agglomeration phenomenon of the 8-hydroxyquinoline copper is reduced, the chemical activity and mildew resistance of the 8-hydroxyquinoline copper are improved, and the toughness of the prepared polyethylene plastic pipe is improved; polyethylene naphthalate has low water vapor transmission rate, and can endow polyethylene with excellent low water vapor transmission performance. According to GB / T 19810-2005, the tensile strength of prepared modified polyethylene particles is 45-50 MPa; and according to GB / T1037-1988, it is determined that a water vapor transmission rate is 0.2-0.5 g / m<2>.24 h.mm, so the technical problems that a conventional polyethylene plastic pipe is not high in both toughness and watervapor transmission rate are solved.

Description

technical field [0001] The invention relates to the technical field of polyethylene plastic pipe preparation, in particular to a high-toughness polyethylene plastic pipe fitting and a preparation method thereof. Background technique [0002] Polyethylene pipes, commonly known as PE pipes, are generally made of high molecular polymers such as polyethylene and polypropylene as raw materials, and are molded by injection molding machines at high temperatures. [0003] However, the toughness of the existing polyethylene pipe is not high, resulting in insufficient strength, and it is prone to breakage during use. At the same time, the existing technology requires operators to transport the polyethylene pipe when cutting the polyethylene pipe. The automation of the entire cutting equipment The degree is not high. At the same time, after the pipe is cut, it is difficult to adjust the accuracy of the cutting position. After cutting, the cutting equipment cannot quantitatively arrange...

AI Technical Summary

Problems solved by technology

According to GB / T19810-2005, the tensile strength of the prepared modified polyethylene particles is 45-50MPa, and according to GB / T1037-1988, the measured water vapor transmission rate is 0.2-0.5g / m 2 .24h.mm, to solve the technical problem that the toughness of polyethylene plastic pipe fittings is not high and the water vapor transmission rate is not strong in the prior art; Put it in, the piston rod of the first cylinder pushes the movable block to move along the waist-shaped groove on the installation strip on the inner wall, the tough rod and the rotating rod drive the crawler conveyor mechanism to move, and then drive the three crawler conveyor mechanisms to contact the outer wall of high toughness polyethylene plastic pipe fittings, miniature The output shaft of the motor drives the conveyor track to rotate through the drive wheel, and the conveyor track transports the high-toughness polyethylene plastic pipe fittings, which solves the technical problem that the plastic pipe fittings need to be manually conveyed during cutting and the degree of automation is not high in the prior art; (3) through high Tough polyethylene plastic pipe fittings pass between the first clamping sleeve and the second clamping sleeve in turn, and the guide wheel on the second installation block. When cutting, the output shaft of the first motor drives the belt through the pulley, and the belt moves through the belt clamp. The plate moves, and the moving plate moves along the horizontal rod through the rod sleeve at the bottom to adjust the cutting position of the high-toughness polyethylene plastic pipe fittings. The piston rod of the third cylinder pushes the thrust seat, and the thrust seat drives the second clamping sleeve towards the first clamping tube. The sleeve moves, and then the first clamping sleeve and the second clamping sleeve fix the high-toughness polyethylene plastic pipe fittings, the delivery tube stops the delivery of the high-toughness polyethylene plastic pipe fittings, and the second cylinder piston rod drives the splash-proof through the installation shell The shell rotates along the mounting seat, the second motor drives the cutting piece through the commutator to cut the high-toughness polyethylene plastic pipe fittings, and the cut pipes are guided by the guide wheels into the storage pipe box for storage. Before cutting the pipe, the pipe cutting equipment can adjust the cutting position. At the same time, through the design of the first clamping sleeve and the second clamping sleeve, it is convenient to fix the plastic pipe fittings during cutting, and solve the problem of pipe transportation in the prior art. After the cutting position, it is difficult to adjust the technical problem of the cutting position; (4) the output shaft of the third motor drives the driving rod to rotate through the commutator, and the driving rod drives the connecting pieces on both sides to rotate, and the connecting piece drives the connecting rod through the positioning pin Rotate, the connecting rod drives the bucket door to rotate along the shaft, the bucket door is opened, the cut pipe falls on the lower tube plate, and is guided out along the lower tube plate to obtain the finished high-toughness polyethylene plastic pipe fittings, which solves the problem of plastic pipe fittings in the prior art. The technical problem that quantitative piping cannot be performed after cutting

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