Pesticides are chemicals that must be used in the production of crops, fruits and vegetables to kill various pests, germs and weeds, and to increase yield and quality. Since most pesticides (including herbicides) are oil-soluble and are not easily soluble in water; various surfactants must be used to emulsify them into oil-in-water emulsions before use. When used, add water to dilute to a very low concentration; spray or otherwise apply to the leaves, stems and stems of crops, fruits and vegetables and weeds to kill or inhibit the growth of various pests, germs and weeds.
Generally, the surface tension of the aqueous surfactant solution is above 30 mN/m; while the surface tension of the aqueous solution of the silicone surfactant is mostly about 20 mN/m. The surface tension of the aqueous solution and the wetting ability and wetting speed of the aqueous solution on the solid surface, especially the hydrophobic surface. There is a direct relationship; the smaller the surface tension, the faster the aqueous solution wets the solid surface, and the larger the wetted area or the spread area. The surface of the leaves, stems and stems of the plant has a very thin hydrophobic wax film. After the pesticide emulsion emulsified with the general surfactant is applied to the leaves, stems and stems of the plant, the wetting speed is slow and the spreading area is small. Due to the capillary effect, many fine pore pesticides do not penetrate, and those pests that are not wetted by the pesticide can still survive; the same applies to the weeds that need to be removed, because the herbicide cannot penetrate into the pores of the weeds. A small amount of silicone surfactant is added to the herbicide formulation to reduce the amount of herbicide by more than one-third. According to the China Pesticide Network , because the surface tension of silicone surfactants is very low, it can promote the rapid wetting of pesticide emulsions and penetrate into every small part of the leaves, stems and stems of plants, so that the effects of pesticides can be maximized. And the action time is greatly extended.
| For products reference | ||
| No. | Item | Description |
| 1 | Bearing Bar Size | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc. |
| I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etcUS standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc. | ||
| 2 | Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 31, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc. |
| US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. | ||
| 3 | Cross Bar Size and Pitch | Twisted bars 5x5, 6x6, 8x8mm; Round bars Dia.6, 7, 8, 9, 10, 12mm and so on. |
| 38.1, 40, 50, 60, 76, 80, 100, 101.6, 120, 135mm, 2'' & 4'' etc. | ||
| 4 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS400, Mild steel & Low carbon steel, etc. |
| Stainless steel SS304, SS316.s335jr | ||
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, powder coating, electrolytic polishing. |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar. |
| 7 | Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987, Australia: AS1657-1985,Germany: DIN24537-1-2006, Japan: JIS. |
| 8 | Panel Size: | 3x20ft,3x24ft,3x30ft,5800x1000, 6000x1000, 6096x1000,6400x1000, as request |
| 9 | Application: | oil refinery,petroleum and chemical Industry, Seaport and airport, power plant, transportation, papermaking, medicine, steel and iron, food, municipality, real estate, manufacturing,metallurgy,railway,boiler,etc |
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