Greenhouse And Greenhouse Films Svetlitsa

2024 Author: Sebastian Paterson | [email protected]. Last modified: 2023-12-16 13:47

Film for greenhouses and greenhouses "Svetlitsa ™"

Address: St. Petersburg, Industrialny prospect, 43L

Phone:

+7 (800) 222-33-41 Display phones

Website: www.sharspb.ru

Greenhouse and greenhouse films Svetlitsa ™ serve for 7 years or more without being removed for the winter. This is confirmed by the long-term use of films in various climatic zones of Russia.

Nurseries of plants Stores of goods for summer cottages Landscape design studios

The quality of Svetlitsa ™ films exceeds the quality of polyethylene films in the following indicators:

1. Mechanical strength:

- tear strength by 2-3 times;

- impact strength more than 5 times;

- resistance to puncture and bursting by 2 -3 times;

- tear strength more than 1.5 times;

- resistance to cracking 16 times or more.

2. Elasticity more than 1.5 times.

3. Frost resistance up to - 80 ° С.

4. The accumulation of static electricity is less than 1.5 times or more.

Greenhouse films are resistant to wind loads ("sailing" effect). The stability of the film was recorded at a wind speed of 18 m / s. The film coating is resistant to hail, sudden temperature changes, and severe and snowy winters. Even in frost, Svetlitsa greenhouse films retain their elasticity; snow can be removed from the greenhouse without fear of film rupture.

The surface of Svetlitsa ™ films is hydrophilic. Its contact angle with water is 45-55 °. (For low density polyethylene films it is 70-84 °). The drops of water condensate on the Svetlitsa ™ film are flat and small, flow down the walls of the greenhouse, and do not drip, and the plants do not get sick.

Drops of water condensate on the Svetlitsa ™ film The

films have an excellent heat-retaining effect, the transmittance in the area of thermal radiation is up to 12 - 40%. In the places of overlap, the films stick together in a short time, blocking the access of cold air to the greenhouse. If desired, the film overlaps can be easily separated when removing it for the winter. The temperature in the greenhouse is 2 - 4 ° C higher than under the polyethylene cover. The microclimate in the greenhouse improves, and conditions are created to increase yields.

Svetlitsa ™ films have been tested with positive results at the St. Petersburg State Agrarian University, at the All-Russian Research Institute of Floriculture and Subtropical Crops of the Russian Academy of Agriculture (Sochi), in agricultural complexes of Russia and Belarus.

For the development of Svetlitsa ™ films and participation in exhibitions, the Scientific and Production Company "Shar" was awarded more than 30 diplomas of various exhibitions.

Svetlitsa ™ films are available in transparent and light-scattering (opaque)

1. Transparent greenhouse and greenhouse films

Transparent greenhouse film Svetlitsa ™ has a light yellow color. The illumination in the greenhouse under this film is 20% higher than under the polyethylene film. Light transmittance in the area of physiologically active radiation is up to 92 -95%.

Spectral characteristics are optimal for growing seedlings, vegetables, as well as fruits, flowers and seedlings. Hard UV transmittance can be adjusted from 0 to 88%. During operation, Svetlitsa ™ film is less dusty than polyethylene film. During operation, numerous small cracks appear on the surface of the plastic film, gradually filling with dust. As a result, the ability of the film to transmit light is reduced. Svetlitsa ™ film is practically not subject to cracking and retains its ability to transmit light much better.

2. Reflective greenhouse and greenhouse films

In the photo: a polyethylene film is fixed on the greenhouse door on the left, Svetlitsa greenhouse film on the right. You can clearly see how much more transparent the Svetlitsa ™ film is.

For areas with hot climates, reflective, light-scattering films are produced to protect plants from overheating. These greenhouse films are also used for growing shade-loving crops, cuttings and seedlings, including conifers. Greenhouse films have different light transmittances in the ultraviolet, visible and infrared regions. By reducing the luminous flux, the temperature in the greenhouse during the daytime becomes lower. And due to the low transmission in the infrared region (less than 20%), the heat accumulated during the day is retained in the greenhouse. At night and on cold days, the temperature in the greenhouse is much higher than under polyethylene. Thus, the thermal regime in the greenhouse is leveled.

Svetlitsa ™ films are used in various climatic regions of Russia - from the western regions to the shores of the Pacific Ocean, from the Arkhangelsk region to the shores of the Black and Caspian seas.

Brief information about the research and production company "Shar"

The Shar company was founded in 1991 in St. Petersburg by a group of specialists in the creation of polymer materials, their processing and application. The company has experience in the development of composite polymer materials with a set of specified properties, the creation and development of technologies for their production.

Photo from Nikolai Ivanovich Kurdyumov's book "Smart Greenhouse". Photo caption: "The film" Svetlitsa "is very difficult to break!"

The company develops polymer compositions according to the technical specifications of customers interested in various materials with a specific set of properties. To carry out such developments, the Center "New Polymeric Materials" was created. The development is based on the existing fundamental ideas about the relationship between the structure and properties of polymeric materials, as well as the results of our own research, which make it possible to significantly increase the service life of products in various extreme conditions - at elevated temperatures, under prolonged loads, under the influence of factors causing cracking, to regulate practically important properties surfaces (wettability, etc.), the timing of the integrity of film materials under the influence of solar radiation, etc.

A number of practical results of such studies have been used to create technologies for the production of film materials, additive concentrates, etc. All materials of the Scientific and Production Company "Shar" comply with environmental requirements.