Deep sea aquaculture net cage HDPE pipe material and preparation method thereof

Abstract

The present invention discloses a deep sea cage aquaculture net cage HDPE pipe material and a preparation method thereof. The HDPE pipe material is divided into inner and outer layers, the inner layer consists of the following raw materials in parts by mass: 100 parts of PE100 pipe resin, and 3-5 parts of a toughening agent; the outer layer is composed of the following parts of the raw materials by mass: 100 parts of ultrahigh molecular weight polyethylene, 10-20 parts of POE, 1-10 parts of polyethylene wax, 5-8 parts of carbon black, 2-10 parts of an ultraviolet absorber, 2-10 parts of a light stabilizer and 1-10 parts of an antioxidant. The thickness ratio of the inner and outer layers is 5-10: 1. The HDPE double-layer pipe material is used in a deep sea cage aquaculture net cage system, the frame impact resistance is improved, the wall thickness of the pipe material can be reduced, cost can be effectively reduced, net cage buoyancy is increased, mechanical properties of the pipe material can be maintained, and are not reduced, under the long sea water soaking and sun exposure, and the breeding of marine organisms in the pipe surface can be prevented.

Description

technical field [0001] The invention belongs to the technical field of HDPE pipes, and more specifically relates to an HDPE pipe for deep-sea culture cages and a preparation method thereof. Background technique [0002] Deep-sea cage culture refers to aquaculture cages that can be used in relatively deep sea areas (usually at a depth greater than 20 m). It is a rapidly developing aquaculture equipment and aquaculture method in the past ten years. With the high profit return of deep-sea fish species and the cost reduction brought about by the development of cage technology, the development scale of deep-sea aquaculture has expanded rapidly. The polyethylene (PE) frame cage was first developed by a Norwegian company in the early 1970s. The cage utilizes the seawater corrosion resistance of PE material, the flexibility of the material and the characteristics of allowing deformation with waves, and can be used in harsh sea conditions. It has better anti-wind and wave ability. ...

AI Technical Summary

Problems solved by technology

At present, there are defects in the raw materials and wall thickness of HDPE pipes produced in China, and it is impossible to guarantee the product quality and basic performance requirements of the deep-sea aquaculture cages, which has buried a safety hazard for the aquaculture safety of the cages.

[0004] In addition, HDPE pipes will age under long-term seawater immersion and hot sun exposure, resulting in a decline in mechanical properties. to destruction, heavy loss

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