Greenhouse covering film

Abstract

A covering film for hothouse is made up of glass fibre cloth through preparing the mixture of unsaturated polyester resin, methyl ethylketone peroxide, cobalt naphthenate, alkyd diluent, rosin and alum and applying the mixture on the glass fibre cloth. Its advantages are high light transmissivity, mechanical strength and insulating performance, and long service life.

Description

technical field [0001] The invention relates to a covering film for vegetable greenhouses. Background technique [0002] At present, most of the greenhouse covering materials on the market are PE, PVC, EVA, etc. Although these materials have good light transmission, their thermal insulation performance and mechanical strength are poor, and the cost of materials used in production and construction costs are relatively high. To some extent, it restricts the development of greenhouse production, and its service life is short, generally only one year. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a greenhouse covering film with good light transmission, good thermal insulation and high mechanical strength. [0004] In order to achieve the above object, the present invention adopts following solution: comprise one deck glass silk cloth, it is characterized in that: above 25 ℃, smear on the glass silk c...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the greenhouse covering materials on the market are PE, PVC, EVA, etc. Although these materials have good light transmission, their thermal insulation performance and mechanical strength are poor, and the cost of materials used in production and construction costs are relatively high. To some extent, it restricts the development of greenhouse production, and its service life is short, generally only one year