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High-permeability resin type timber enhancing modifier and efficient immersion treatment control method

InactiveCN105563579AFull penetrationImprove performanceWood treatment detailsPressure impregnationSolubilityPermeation

The invention belongs to a high-permeability resin type timber enhancing modifier and an efficient immersion treatment control method. The method includes: preparing materials according to mole ratio of melamine to formaldehyde to methanol to urea being 1:2-2.5:0.5-1.0:0.2-1.0, wherein the adding amount of flexibilizer is 10-30% of the amount of the melamine. Modified melamine urea resin with good water solubility, high permeability and low molecular weight and used for immersion is prepared by adjusting raw material proportion, using a low-temperature long-time multistage synthesizing process and adding alcohol flexibilizer, polymerization inhibitor and the like. The permeation channels of timber hard in immersion are opened through a multi-time alternating breathing type immersion treatment process, the timber can be permeated evenly, and timber performance is improved greatly. The high-permeability resin type timber enhancing modifier and the efficient immersion treatment control method have the advantages that the timber hard in immersion can be permeated sufficiently, and various performance of the timber can be improved evidently; the fast-growing timber, modified by the method, of a man-made forest is high in density, high in strength, good in toughness, stable in size, flame retardant, capable of preventing mildew and corrosion, good in processing performance, environmental friendly in production, good in use effect, high in additional value, and the like.

Owner:INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY

Mildewproof and anticorrosion type dendrobium candidum culture soil and preparation method thereof

InactiveCN105367297AImprove ventilation and water permeabilityGood anti-mold and anti-corrosion effectBioloigcal waste fertilisersPotassium fertilisersFenugreek seedChaff

The invention relates to the technical field of planting of dendrobium candidum, in particular to mildewproof and anticorrosion type dendrobium candidum culture soil and a preparation method thereof. The mildewproof and anticorrosion type dendrobium candidum culture soil is prepared from 50%-60% of volcanic eruptive stone, 10%-20% of garden soil, 10%-15% of sandy soil, 5%-10% of camphor tree bark powder, 3%-5% of common fenugreek seed powder, 5%-8% of brick crumbs, 3%-5% of charcoal, 5%-10% of rice chaff ash and 5%-10% of alcohol marsh mud. The raw materials are mixed, and the culture soil is prepared through the steps of pretreatment, pH value adjusting and the like. The culture soil which is prepared through the raw materials according to the proportions is good in air permeability and water permeability and significant in mildewproof and anticorrosion effect, the planting survival rate of the dendrobium candidum is increased, the planting cost of growers is reduced, and the economic benefit is improved.

Owner:ZHENJIANG SHENGHONG LANDSCAPE PLANT

Preparation method of bamboo/wood mildew-resistant antiseptic

ActiveCN104526806AGood anti-loss performanceImproves loss resistanceWood impregnation detailsSilicic acidEthyl ester

The invention discloses a preparation method of a bamboo / wood mildew-resistant antiseptic. The preparation method comprises the following steps: weighing 60-150 parts by weight of tetraethoxysilane, sodium silicate solution or titanium tetrabutoxide at room temperature, slowly and dropwise adding tetraethoxysilane, sodium silicate solution or titanium tetrabutoxide into a mixed liquor of 40-75 parts by weight of anhydrous ethanol and 30-36 parts by weight of deionized water, and simultaneously treating the mixed liquor by water bath at 40-80 DEG C and stirring; adjusting pH to 3-4 by adding a proper amount of acid, and reacting for 30-45 min to prepare uniform sol; and slowly adding 3-12 parts by weight of an aqueous solution containing a copper compound into the sol under the condition of treating the sol by water bath at 40-80 DEG C and stirring, adding 5-15 parts by weight of an aminosilane coupling agent used as a guiding agent, fully stirring and reacting so as to prepare the bamboo / wood mildew-resistant antiseptic. The prepared bamboo / wood mildew-resistant antiseptic has excellent leach resistance and has simple components. The preparation method is simple, has relatively low production cost, is environmentally friendly and is less harmful to the health of human body.

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