Where the Chinese Academy of Sciences, Changchun-based long-term performance of polyethylene film resin drip Compound development has made important progress in its commitment to the national "863" project last week organized by the Ministry of Science and an expert inspection.
The traditional agricultural greenhouse film flow drops short, pests and diseases and fruits and vegetables rot in the studio is easy to mold and other issues changing the CAS Changchun Institute of Technology at the National "863" project,
fine chemicals, supported in December 2007 to carry out the long-term performance of polyethylene film resin drip Compound study. They Lin'an Luyuan Fine Chemicals Co., Ltd., Jilin Chemical Co., Ltd. radiation and Harbin Institute of Technology five Plastic Co., Ltd, synthesized with hydroxyl, ester, carboxyl, ether and other reactive hydrophilic groups and double bond of the flow drops group elements to optimize the amount of polyethylene pre-irradiation and pre-irradiation process parameters, the completion of the flow drops and the pre-irradiation grafting reactive extrusion of polyethylene industrial test. Researchers developed high-performance polyethylene for long-term drip blown film resin special material for industrial testing, production of films in Liaoning, Jilin and Heilongjiang were Koupeng tests to good effect.
The films are an effective solution to the current drop period due to failures caused by Pengwen decline, pests and mildew rotting fruits and vegetables and other family issues, both for the farmers increase production to provide a guarantee,
CAS 3391-83-1, but also extend the replacement cycle of films, saving the cost of planting and resin raw materials and energy.
Polyethylene resins are widely used in agricultural films, but the non-polar polyethylene hydrophilic poor. To solve the problem of hydrophilic polyethylene resin, commonly used in addition method and treated with law, the domestic is currently used mainly in the polyethylene resin drops way to add streaming, but stream drops and the larger difference between the polarity of polyethylene resin ,
Musk R-1, prone to migration and surface erosion, stream drops so persistence is shorter, usually three to four months. People trying to change the structure of flow drops, increase the molecular weight oligomeric and other means to improve the flow of drops sustained-release period, but with little success, in addition to the short time remaining in the drip-drip and anti-fog or no fog caused the problem. New results effectively solve this problem. Source: www.mhcfm.com
