Over 40 meters high and over 20 meters wide, the ultra large full-automatic greenhouse film unit is running at full speed. After the processes of mixing, feeding, heating, melting, extrusion, etc., a piece of greenhouse film is slowly transported from the top of the unit to the ground, and then automatically packaged into a roll. This is a reporter at Kelun Plastic Industry Group Co., Ltd. (hereinafter referred to as "Kelun Group") in Quzhou County, Hebei Province Scenes seen in the production workshop.
"This is our externally coated POD greenhouse film. The thickness of this greenhouse film is only 0.1mm, and it has the advantages of biodegradation, UV protection, fog prevention, insect prevention, weed control, heat preservation, light transmission, energy storage, etc." Yuan Zhiqi, chairman and general manager of Kelun Group, said that these plastic films are not simple, involving organic polymer materials, polymer material modification Nano inorganic materials and other technologies are jointly developed by the company and well-known universities and institutes in China.
Kelun Group, founded in 2001, is a professional enterprise focusing on the modification and development of plastic products, and is also one of the large modern efficient (facility) agricultural equipment suppliers in North China. The company is a national high-tech enterprise and a national specialized new "little giant" enterprise.
In the product exhibition hall, EVA antifogging greenhouse film, high transmittance diffuse scattering greenhouse film, grape specific greenhouse film, black and white mulch film for weed prevention and control, fully biodegradable mulch film and other products are available. "The company's products cover nine series and hundreds of specifications, which can basically meet the needs of agricultural production film in different regions and different climatic characteristics in China." Yuan Zhiqi picked up a light blue film sample and said that this POD permanent anti fog and drip functional film can be used for a long time in direct sunlight The southern region with strong ultraviolet radiation, and the northern region with frequent sandstorm weather and large temperature difference between day and night.
Insisting on innovation is the key for enterprises to achieve rapid development. "PO coated film is a high-tech coated product, which can increase crop output by 10% to 15%, and is mainly used for greenhouse vegetable planting. Before 2013, the production technology of PO coated film was mainly controlled by foreign companies. Due to the high price of imported products, only a few regions in China used it." Mu Jianzhang, executive vice general manager of Kelun Group, said that in order to solve the problem, Kelun Group cooperated with colleges and universities to jointly research and develop and successfully overcome the technical difficulties, producing PO coated films with independent intellectual property rights, and the product price was more than 30% lower than that of foreign isotropic products.
In order to reduce the impact of agricultural film on crops receiving light, Kelun Group has developed a diffuse scattering film. By introducing materials that can change the direction of light transmission in the film formula and imitating the principle of shadowless lamp in the operating room, the total amount of light passing through the film remains unchanged, but the direction of more than 50% of the light is changed, and the direct light is changed into scattered light, which is conducive to the crops in the shed receiving light evenly, It plays the role of heat preservation, production increase and quality improvement; The residue of agricultural film has always been a pain point for agricultural production. Based on petroleum based materials and other biological substances, Kelun Group has designed and produced a fully biodegradable plastic film that is environmentally friendly. It can use microorganisms in nature to accelerate degradation, reduce the harm of "white pollution" to soil, and its tensile resistance and fracture resistance are also better than ordinary plastic films.
Kelun Group attaches great importance to the research and development of new products and technologies, and has established Handan Agricultural Plastic Engineering Technology Center, which has 38 research and development personnel, accounting for 13.48% of the total number of employees, and has continuously strengthened research and development investment. From 2021 to 2023, the research and development expense will exceed 10 million yuan, accounting for nearly 5% of the operating income.
"At present, Kelun Group is carrying out the research and development of high thermal insulation micro foaming agricultural film, agricultural film surface drip agent and anti-static and dust-proof additives for plastic agricultural film." Mu Jianzhang said that on the basis of cooperation with universities, Kelun Group has also built a "science and technology academy" to explore the application of plastic product modification in agricultural production.
"By 2023, Kelun Group will achieve sales of nearly 300 million yuan. The company will also further strengthen scientific and technological innovation, introduce high-end talents, increase capital investment, carry out broader cooperation, research and develop more new agricultural film products, and constantly meet the needs of high-quality agricultural development." Yuan Zhiqi said.
