What material has a good insulation effect of greenhouse film?

The warmth of the greenhouse has nothing to do with the material.

1.The warmth effect of plastic greenhouses is related to the span of the greenhouse.

If it is also an intact plastic greenhouse, the larger the width, the better the thermal insulation performance.

2.It has to do with the number of layers covered.

The large shed is covered with a small shed, and it is covered with a double layer. Its thermal insulation performance is better than that of single-layer covering;

The greenhouse is set in the shed, and the shed is set in the shed, so that the three-layer coverage has a better thermal insulation effect than the double-layer coverage.

3.It is related to whether or not to cover the straw curtain. If the outer layer of the shed in the greenhouse is covered with a layer of straw felt, then the thermal insulation performance. It is better than the ordinary three-layer covering.

Greenhouse film is usually made of one or several main raw materials with a variety of functional masterbatches, one is polyvinyl chloride (PVC) film, the other is polyethylene (PE) film, the third is ethylene-vinyl acetate copolymer film, and the fourth is dimming agricultural film.

1. Polyvinyl chloride (PVC) shed film has good heat preservation, light transmittance, weather resistance, softness, easy modeling, and is suitable as the outer covering material of greenhouses, greenhouses and small and medium-sized arch sheds.

2. Polyethylene (PE) shed film is light in texture (specific gravity of about cubic centimeters), soft, easy to shape, good light transmittance, and suitable for making various shed films and mulch films.

3. EVA resin is a new greenhouse film material used in agriculture, and the agricultural film made of it has stronger light transmittance, heat preservation and weather resistance than PVC or PE agricultural film.

4. Dimming agricultural film is made of rare earth and other functional additives added to PE resin, which can selectively transmit light, and is a new type of covering material that can make full use of sunlight energy.

Compared with aluminum-plastic panels, sunlight panels are more durable, have a long service life, and are easy to install.

2. If the selected aluminum-plastic panel is not good, it will cause problems such as blistering, falling off and fading for a long time.

3. Sunshine panels are better than aluminum-plastic panels in terms of color and texture.

Greenhouse insulation is chosen tricks

1. Chemical fiber material insulation quilt: There are many kinds of chemical fiber materials, but there are two types that are widely used at present: needle felt insulation quilt and acrylic cotton insulation quilt.

The needle felt insulation quilt is made of old broken wire (cloth) and other materials after a certain treatment and re-pressing, with low cost and good thermal insulation performance. Needle felt insulation is made by stitching using needle felt as the main cold-proof insulation material. Its own weight is heavier than that of the composite insulation quilt, and the windproof performance and thermal insulation performance are better.

2. Foamed polyethylene material insulation quilt: Foamed polyethylene material is a light closed-cell self-waterproof material, because the internal voids of the material are not connected with each other, so it is difficult for external moisture to directly enter the inside of the material. The thermal insulation quilt made of expanded polyethylene material overcomes the problem of the damp performance of the above-mentioned materials, and at the same time, the waterproof layer of the material is omitted, and the self-waterproofing of the material is realized.

This material is lightweight, not damp, and labor-saving after foaming.

Effect analysis. The greenhouse insulation is laid on the front slope of the greenhouse, which is mainly used for night insulation of the greenhouse, so having good thermal insulation performance is the primary requirement for the insulation quilt. Secondly, the greenhouse insulation is required to be rolled up after sunrise and put down before sunset, so the corresponding insulation system is also a movable quilt system, so the insulation material must be a flexible material.

After the solar greenhouse insulation is installed, it will always work in outdoor and open-air conditions, for which it is required to be windproof, waterproof and age-resistant, so as to adapt to the daily natural climate conditions such as wind, rain, snow and hail. Finally, solar greenhouse insulation quilts should also have a wide range of materials**, low manufacturing and processing costs and market prices.

Greenhouse insulation has gone through many versions from the initial straw curtain to the present, including rock wool, rubber and plastic, foam board, etc., to the best, the insulation of black cotton has been widely used, because this material is relatively cheaper. But with the production of non-glued cotton insulation quilt, the disadvantages of black cotton have emerged, easy to absorb water, large weight, short life, all said, the current insulation is better than other non-glued cotton materials.

Greenhouse insulation is mainly used to cover greenhouses, in order to insulate the plants, flowers, vegetables, fruits, etc. planted in the greenhouse, so the purchase of greenhouse insulation quilt should have the following characteristics:

1. Waterproof; 2. Keep warm or even warm;

3. Easy to load, unload and disassemble.

Fabric selection: The greenhouse insulation quilt should be composed of waterproof fabric + cotton, and those with low temperature can choose to add several layers of cotton to achieve the purpose of heat preservation or heating.

Generally speaking, you should choose a suitable quilt according to your own economic situation and region. The greenhouse insulation quilt is divided into many material combinations, such as, 1 is also a relatively popular black cotton combination quilt with low cost, and the surface is made of non-woven fabric; 2. Wool felt quilt, 3. Long-staple cotton quilt, to the current new rainproof snow quilt and so on.

There is no specific standard for what kind of greenhouse insulation quilt, each has its own advantages. For now, the insulation quilt without rubber wool is still quite good.

The waterproof insulation is better than the lamination, with a layer of pearl cotton, camel hair for the filling, black felt for the tensile felt, or woven cloth and silk cotton, so light and warm.

The thermal conductivity is small and the thermal insulation performance is good, especially when the temperature difference changes greatly. Low water absorption and good moisture-proof performance; Good stretchability and compression; Easy to use, simple to construct, with appropriate dimensions; Odorless and non-toxic.

Note: Although the above-mentioned insulation quilts have good thermal insulation, they are all suitable for mechanical rolling, and the area of promotion and use has been expanding in recent years. However, due to the different shortcomings of each, it still needs to be continuously improved to make it more ideal and practical.

The 100% wool greenhouse insulation quilt has the functions of light weight, waterproof, anti-aging, thermal insulation, etc., with a longer service life and the best thermal insulation effect. Wool drainage, with good natural curl, can keep fluffy for a long time, in the heat preservation is the first. High-quality, low-price manufacturers directly face greenhouse growers, many types of fabrics (optional), width meters.

The length does it according to the fact of the shed and does not waste it.

I heard that Hebei Huinong Thermal Insulation Products Company has designed a new type of thermal insulation to be insulated: the normal thickness of chemical fiber cotton insulation material is 20mm-100mm, and the weight per square meter is 200-1000 grams.

3.Long use time: the upper or middle or lower edge of the chemical fiber cotton insulation material can be added with plastic foam insulation materials such as EPE or other thermal insulation materials such as chemical fiber non-woven fabrics.

4.Good toughness: the bottom surface is paved with chemical fiber non-woven fabrics, chemical fiber woven fabrics, nylon fabrics, plastic woven fabrics, glass silk fabrics and other permeable tensile fabrics.

You can go and see Electricity: 15o·· 3 73·· 5136

Hebei Huinong Thermal Insulation Products Company has designed a new type of thermal insulation quilt.

Non-absorbent: The new type of thermal insulation quilt is made of chemical fiber or plastic fiber as raw material, and uses mechanical processing and molding of spray cotton, hot air cotton, hot melt cotton, washable cotton, filter cotton, fireproof cotton and other highly elastic and non-absorbent chemical fiber cotton as the main insulation material.

Good insulation: the normal thickness of chemical fiber cotton insulation material is 20mm-100mm, and the weight per square meter is 200g-1000g.

3.Long time of use.

4.Good toughness.

Check it out. Electricity: 15o·· 3 73·· 5136

Choose the right greenhouse insulation, that is, the best insulation, why is it said that Yicheng roller shutter machine will give you an analysis.

1. The intensity of ultraviolet rays and sunlight is different in different regions.

2. The amount of rain and snow is different.

3. Do you need to keep warm or insulated?

Therefore, the same kind of quilt may be the most practical in a regional vegetable greenhouse, but it is not the most suitable to put it on the breeding shed.

Yicheng roller shutter machine.

Summary. Hello, glad for your question. The greenhouse film made of polyethylene has a good thermal insulation effect.

PVC membrane PVC (non-dripping membrane) Advantages: good water permeability, which can reduce the incidence of various diseases; Good light transmittance, which is conducive to the safe wintering and growth of greenhouse vegetables; Age-resistant, can be used for more than 2 years.

What material has a good insulation effect of greenhouse film?

Hello, glad for your question. The greenhouse film made of polyethylene has a good thermal insulation effect. PVC membrane PVC (non-dripping membrane) Advantages: good water permeability, which can reduce the incidence of various diseases; Good light transmittance, which is conducive to the safe wintering and growth of greenhouse vegetables; Age-resistant, can be used for more than 2 years.

Is the po film good for warmth?

Okay, the PO film is also very good.

Of course, the greenhouse should use the greenhouse culture film.

Aquaculture film culture film, white outside and black inside, mainly used in summer and autumn, covering the white side up, with a strong ability to reflect light, and black inward to prevent light from penetrating, playing a role in shading and cooling, the temperature in the shed is much lower than other tarpaulin and film covering.

Application of cultured film:

Aquaculture film is widely used in edible fungus greenhouses, sericulture greenhouses, flower shading, light (to adjust the flowering period), aquaculture shed covering, hydroponic cultivation impervious layer, greenhouse outer layer insulation, anti-freezing, vegetable greenhouse mulching, green fodder storage, chicken house, pig house and so on.

Greenhouse film selection of non-dripping film, po film is better, no dripping film for the crops in the shed is also more beneficial, greenhouse film commonly used thickness 8 wires, 10 wires, 12 wires, 8 wires are the thinnest, belongs to the most common, generally ** yuan one square meter.

Generally, it takes one to two years to replace.

Summary. Greenhouse film refers to the special plastic film used for the construction of facility agricultural production, and its light transmittance, heat preservation, tensile strength and aging resistance are better than ordinary agricultural films. It is of great significance to the growth, yield and income of greenhouse crops.

Greenhouse film refers to the special plastic film used in the construction of facility agricultural production, and its light transmittance, heat preservation, tensile resistance and anti-aging performance are better than ordinary agricultural film. It is of great significance to increase the yield and income of greenhouse crops.

It belongs to the insulation material.