Polyvinyl chloride (PVC) drip irrigation belt

Abstract

Disclosed is a polyvinyl chloride (PVC) drip irrigation belt, which comprises the following components: PVC resin 100 parts by weight, plasticizer 20 to 40 parts by weight, lubricant 0.5 to 2 parts by weight, impact modifier 2 to 6 parts by weight, processing aid 0.5 to 3 parts by weight, heat stabilizer 1 to 2.5 parts by weight, coupling agent 0.1 to 0.8 parts by weight and calcium carbonate 5 to 20 parts by weight. The invention is mainly used as various irrigators used indoor and outdoor, in particularly suitable for water-saving irrigation in field agriculture.

Description

technical field [0001] The invention relates to a water-saving irrigation equipment, in particular to a polyvinyl chloride (PVC) drip irrigation belt. Background technique [0002] my country's agriculture is the industry that uses the most water, and the shortage of water resources has become a bottleneck restricting the development of agriculture and the national economy. Developing high-efficiency water use in agriculture is a fundamental strategic measure to ensure the sustainable development of agriculture in my country. At present, my country's annual average newly-added drip irrigation area is about 20,000 hectares, and the annual renewal of drip irrigation is 20,000 hectares, which is equivalent to about 400 million meters of drip irrigation pipes (belts). The annual renewal quantity is constantly increasing, and the market demand is constantly increasing. In water-saving equipment such as sprinkler irrigation, micro-irrigation, and under-film drip irrigation, drip ...

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Problems solved by technology

[0003] At present, polyvinyl chloride (PVC) and polyethylene (PE) are commonly used raw materials for plastic processing. Due to the relatively high density of polyvinyl chloride resin, compared with polyethylene, it has higher strength, stiffness, hardness and lower toughness. , low elongation at break and impact strength, poor thermal stability, high melt viscosity, and difficult processing. Therefore, it is difficult to make a drip irrigation belt that meets the standard with polyvinyl chloride (PVC). For a long time, those skilled in the art thought that it was impossible to produce drip irrigation belts with PVC, and polyethylene (PE) was used as the main raw material to produce drip irrigation belts. Due to the good flexibility of polyethylene molecules, good toughness and low temperature resistance, the drip irrigation belts made It has good physical and mechanical properties, so at present, those skilled in the art generally use polyethylene (PE) raw materials to produce drip irrigation belts, but because polyethylene is a downstream product of petrochemical industry, with the continuous reduction of my country's petroleum resources and the The continuous increase of the price makes the cost of producing drip irrigation belt with polyethylene as the main raw material also continuously increases, which increases the operating cost of the enterprise and reduces the competitiveness of the enterprise in the market

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