Main functions and materials of vegetable greenhouse insulation quilt1

The vegetable greenhouse insulation quilt is generally used in winter, and the main function of the insulation quilt is to keep the greenhouse warm and antifreeze. Vegetable greenhouse insulation is made of multi-layer composite processing of strong and high thermal insulation new materials. It has the functions of light weight, waterproof, anti-aging, thermal insulation, far infrared reflection, etc. The service life can reach more than 5-9 years, and the thermal insulation effect Good, under the same conditions, the temperature can be increased by 10 degrees compared with that of straw. It is easy to store and store. This product is suitable for thermal insulation of solar greenhouses, multi-span greenhouses, ecological restaurants, long-distance transport vehicles, plastic greenhouses, etc. better alternative. The thermal insulation quilt can be used in greenhouse thermal insulation, greenhouse thermal insulation, automobile thermal insulation, door curtain, building thermal insulation, concrete thermal insulation, construction thermal insulation, engineering thermal insulation, road thermal insulation and other purposes. 1. Moisture-proof, all vegetable greenhouse insulation quilts are afraid of moisture. Moisture will make the cotton wool inside the vegetable greenhouse insulation quilt moldy or even hairy. In severe cases, it will even affect the next use effect. Therefore, when you store the insulation quilt Correspondingly, moisture-proof measures should be taken, especially in wet and rainy summer. 2. The problem of preventing mice and gnawing by mice is a difficult problem to solve in the process of long-term storage of vegetable greenhouse insulation quilts, so everyone should do all rodent prevention when storing insulation quilts, so as to prevent mice from irreparably causing vegetable greenhouse insulation quilts of damage. 3. Fire prevention, because the vegetable greenhouse insulation quilt needs to be stored after drying, it is relatively dry, so it is easier to burn, so everyone should prevent fire hazards in all aspects when storing the vegetable greenhouse insulation quilt. The vegetable greenhouse insulation quilt that has been used earlier and widely in production is mainly grass thatch. First, it uses local materials and uses the remaining agricultural scraps in rural areas; second, it is cheap and has good thermal insulation performance. Therefore, in the solar greenhouse thermal insulation quilt Middle grass thatch has become an irreplaceable front roof insulation material. However, with the large-scale development of solar greenhouses, the supply of thatch is becoming more and more tight, and the thatch itself does have its own insurmountable shortcomings: heavy weight, long retraction time, high labor intensity, and difficulty in mechanized operations. ; Poor waterproof performance, the thermal conductivity of the material increases sharply after encountering water, almost loses its thermal insulation effect, and its own weight doubles, causing great pressure on the greenhouse skeleton; in windy areas or under windy conditions, due to its own pores If it is not used in conjunction with other sealing materials, its insulation performance alone is limited. Therefore, research and experiments to explore the use of new covering materials have not been interrupted. Paper quilt is an early thermal insulation quilt material used in conjunction with thatch. The source of paper quilt is mainly old cement bags, and now it has also developed to order directly from paper mills, but the cost of the latter is much higher than that of the former. The paper quilt is mainly spread under the straw to prevent the straw from scratching the plastic film, and a dense thermal insulation layer is formed between the straw and the plastic film, so that the thermal insulation performance of the greenhouse is further improved. According to the determination, in the severe cold winter, using 4 to 6 layers of old cement bag paper with 5 cm thick thatch can increase the indoor temperature of the greenhouse by 7 to 8 degrees Celsius compared to using the thatch alone. But the paper quilt is the same as thatch, after being soaked by rain and snow, the thermal insulation performance also drops sharply, and it is easily damaged. If a layer of straw or some reeds is added to the surface when sewing paper quilt to make it like a straw, the thermal insulation effect will remain unchanged and it will not be easily damaged. The quilt is the first thermal insulation material used in cotton or non-agricultural areas, and its thermal insulation effect is better than that of grass. Generally, when sewing a quilt, a layer of waterproof material should be used on the outside to prevent the batt from getting wet. The standard quilt is generally 2 kg/square meter of cotton, 3 cm to 4 cm thick, about 4 meters wide, and 0.5 meters longer than the arc length of the front roof lighting surface for sealing.