Black agricultural film, low light transmittance, only less than 10%, covered in many areas of grass, can make the weeds germinate and can not get the necessary sunlight and die, the effect of stippling is stable and reliable; the black film is slowly warmed, water retention performance it is good. Covering the cool and cool vegetables in the hot season, the heat transfer is small and the water evaporation is small, so as to promote growth. If the shade net is used, the cooling effect is more obvious. The suitable range is summer radish, Chinese cabbage, spinach, loquat, autumn cucumber, etc. Weeding perennial crops or orchards is also good.
CPE is the sub-data of saturation high grade (FEN), the appearance is white powder, non-toxic and odorless, with excellent weather resistance, ozone resistance, chemical resistance and aging resistance function, with excellent oil resistance, flame retardant and coloring function. Excellent toughness (still flexible at -30℃), excellent compatibility with other polymer materials, high differentiation temperature, differentiation to produce HCl, HCl can catalysis CPE dechlorination reaction.
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