Preparation method of farm-oriented water retaining agent using waste paper craps as raw materials
A technology for agricultural water-retaining agent and raw materials, applied in the field of water-retaining agent, can solve the problems of unsuitable long-term storage, low biodegradation rate, complicated preparation operation, etc., and achieve the effects of shortening reaction time, improving grafting effect and reducing pollution.
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[0020] A preparation method of an agricultural water-retaining agent using waste paper scraps as a raw material, characterized in that it comprises the following steps:
[0021] (1) Pretreatment of raw materials: First, dry 2 g of waste paper scraps collected in the sun, place them in a Chinese herbal medicine grinder, and obtain crushed paper residue fibers, pass through a 60-mesh sieve, and use a 35% sodium hydroxide solution to The sieved paper residue fiber is fully infiltrated, and after taking it out, add a reinforcing agent with 2-3% of the weight of the original dry paper residue fiber, and stir evenly. The reinforcing agent is composed of the following raw materials in parts by weight: poly Methyldiallyl ammonium chloride 2-3, carboxymethyl starch sodium 20, glycerin 2, nylon acid methyl ester 0.2; mix carboxymethyl starch sodium and nylon acid methyl ester, stir and mix at 70°C for 5 minutes , stir and mix polydimethyldiallyl ammonium chloride and glycerin, then add,...
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