Chlorothalonil is a high-efficiency, low-toxic, low-residue, broad-spectrum fungicide with dual functions of prevention and treatment. It can effectively prevent greenhouse cucumber downy mildew and tomato early blight, late blight, gray mold and celery spot blight, amaranth gray mold and other diseases. The pesticide preparation can be applied before and during the onset of the disease, and the dosage is generally 250 to 300 grams per 667 square meters. Close the louvers and vents before casting, and then carry out fixed-point smoke or mobile smoke.
First, set the point to smoke. Select a few smoke points, place the smoke evenly on the ground (preferably hang), and ignite with incense or cigarette. This kind of smoke agent is packed in 100g small bag. The greenhouse can be used in the whole bag. The small shed can put the smoke powder in the small paper tube rolled up by the old newspaper, insert it into the fire, ignite it, or put 100 grams of smoke column. Cut into two pieces for use. The ignition sequence is sequentially ignited from the shed to the shed.
Second, mobile smoke. Place the smoke agent on the shovel, and after ignition, hold the shovel and slowly move from the shed to the outside of the shed. However, using this method to prevent poisoning is generally not recommended.
Third, the pesticide network Xiaobian reminds everyone to pay attention to:
1. The smoker in the shed should be sealed for at least 4 hours. The time for smoking should be carried out before and after sunset. The next day, the louver and the vents can be fully opened for ventilation.
2. Use chlorothalonil aerosols only in greenhouses or greenhouses, and must be closed tightly.
3. Store the aerosols away from the fire source, and prevent moisture and high temperature. The ignition cannot be used with an open flame.
4. Tips for China Pesticide Network : Pay attention to protect your eyes and skin when using it. Wash your face, wash your hands and other exposed parts of your body with soapy water.
PPO plastics (MPPO)
(polyphenyl ether)
English name: poly(phenylene oxide)
Weight: 1.07 g/cm3 molding shrinkage rate: 0.3 0.8% molding temperature: 260-290 ℃ drying conditions: 130 ℃ for 4 hours
Material performance 1, for white particles.The comprehensive performance is good, PPO plastics can be used in 120 degree steam, electric insulation is good, absorb water is small, but have stress crack tendency.Modified polyphenyl ether can eliminate stress cracking.
2. Excellent electrical insulation and water resistance, good dimensional stability.Its dielectric properties are the first in plastic.
3. PPO plastics has mixed the modified materials for PPO plastics and HIPS, and the materials on the market are now made of this material.
4. High heat resistance, 211 degrees of vitrification temperature, 268 degrees of melting point, and the decomposition tendency of heating to 330 degrees. The higher the PPO plastics's content, the better the heat resistance, and the heat deformation temperature can reach 190 degrees.
5. Good flame retardancy, self-interest, and with HIPS mixed with moderate flammability.Light and non-toxic can be used in food and medicine industry.The resistance to rotation is poor, and the use of long time in the sun will change color.
6. PPO plastics can be combined with ABS plastics ,HDPE plastics,PPS plastics ,PA plastics, HIPS plastics, Glass Fiber, etc.1. Suitable for heat resistant parts, insulation parts, wear resistant parts, transmission parts, medical and electronic parts.
2. The parts can be used in high temperature, such as gears, blades and valves, which can be used for stainless steel.
3. Make screws, fasteners and fittings.
4. Electrical components of motor, rotor, casing and transformer.
1. Non-crystalline material, small moisture absorption.
2. The fluidity difference is similar to Newton's fluid, the viscosity is sensitive to the temperature, the product thickness is generally more than 0.8mm.It is very easy to break down and decompose into corrosive gases.The molding temperature should be strictly controlled, the mould should be heated and the flow resistance should be small.
3, Polyphenylene oxide, bibulous rate is about 0.06% less, but traces of water will lead to product surface not smooth phenomenon such as silver, it is best for dry processing, temperature is not higher than 150 degrees, otherwise the color will change.
4. The forming temperature of polyphenyl ether was 280-330 degrees, and the forming temperature of modified polyphenylene ether was 260-285 degrees.
Sheet specification: thickness from 2mm- 120mm, specification 600* 1200mm, other color and specification can be customized
Bar specification: diameter from 10mm- 200mm, length 1000mm, other color and specification can be customized.
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Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com