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A polyvinyl chloride, anti-aging technology, applied in rigid pipes, pipes, mechanical equipment, etc., can solve the problems of easy aging of rainwater pipes, high pipeline cost, inconvenient installation, etc., and achieve the effect of light weight, lower overall weight, and low cost.
Inactive Publication Date: 2021-05-21
湖北亚塑管业科技有限公司
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But there are also disadvantages: the inner layer of PVC is composed of polyvinyl chloride, chlorinated polyethylene, calciumstearate, titanium dioxide and other materials, the cost of the pipeline is high, and the weight is heavy and the installation is inconvenient
On the one hand, this composite pipe cannot solve the problem of easy aging of existing rainwater pipes, and also has the problems of heavy weight and high cost; on the other hand, the components of this composite pipe are designed for the above special occasions , not suitable for use as a general drainage pipe
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Embodiment 1
[0022] Embodiment 1: D75 specification (outer diameter is 75mm)
[0048] The outer layer of the drainpipe obtained through the above three embodiments is an anti-aging layer, which can solve the problem of aging resistance. The inner layer adopts the foaming process formula, which can not only reduce the overall weight, improve the impact resistance of the pipe, have the effect of sound insulation, but also reduce the cost of the drain pipe.
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Abstract
The invention relates to the field of plastic pipelines, in particular to an anti-aging impact-resistant modified polyvinyl chloride drainage pipe and a preparation method thereof. The drainage pipe comprises an inner layer and an anti-aging outer layer, and the inner layer comprises the following components in parts by weight: 85-120 parts of polyvinyl chloride, 3.0-5.2 parts of a compound stabilizer, 2-7 parts of an anti-impact modifier, 0.1-0.6 part of stearic acid, 0.1-0.6 part of calciumstearate, 0.3-0.6 part of an AC foaming agent, 4-8 parts of a foaming regulator ZB530, 4-50 parts of calciumcarbonate, 0.2-1.3 parts of PE wax and 0.3-0.8 part of lead stearate. The outer layer of the drainage pipe is the anti-aging layer, so that the anti-aging problem can be solved. And the inner layer adopts a foaming process, so that the overall weight can be reduced, the impact resistance of the pipe is improved, a sound insulation effect is achieved, and the cost of the drainage pipe can be reduced. In addition, the invention also discloses a preparation method of the anti-aging impact-resistant modified polyvinyl chloride drainage pipe.
Description
technical field [0001] The invention relates to the field of plastic pipes, in particular to an anti-aging and impact-resistant modified polyvinyl chloride drainage pipe and a preparation method thereof. Background technique [0002] As a branch of the water delivery field, drainage pipes are getting more and more attention today when residential buildings, municipal engineering, agriculture, gardens and other industries are becoming more and more prosperous. For a long time, the installation of drainage pipes, especially some middle and low-grade buildings, has been exposed, and some of them are also used together with rainwater pipes. These surface-mounted pipes have been exposed to the sun for a long time, and their aging resistance has been greatly tested. Moreover, the surface-mounted pipes are vulnerable to external impacts, such as knocking, impact or even extrusion. The traditional method is to add anti-aging agents to PVC drainage pipes and increase the ring stiff...
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