Urea formaldehyde foam matrix for cultivating cold-season turfgrass and preparation method thereof

A urea-formaldehyde foam, cool-season technology, applied in the field of plant cultivation substrate and its preparation, to achieve the effect of avoiding damage, simple and convenient method, and good water absorption and water retention performance

Inactive Publication Date: 2010-08-11
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the special urea-formaldehyde foam matrix for the establishment and planting of cool-s...

Method used

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  • Urea formaldehyde foam matrix for cultivating cold-season turfgrass and preparation method thereof
  • Urea formaldehyde foam matrix for cultivating cold-season turfgrass and preparation method thereof
  • Urea formaldehyde foam matrix for cultivating cold-season turfgrass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, the preparation of the urea-formaldehyde foam substrate of cultivation cool-season lawn and its effect detection

[0028]A commercially available formaldehyde solution with a concentration of 36%-38% is formulated into a formaldehyde solution with a concentration of 30%.

[0029] 1) Preparation of urea-formaldehyde resin solution

[0030] Weigh 850 grams of the above-mentioned 30% formaldehyde solution into a three-necked bottle, start the mixer to stir fully, take a sample of the formaldehyde solution to measure its pH value, and then adjust the pH value at 6.4-6.7 with a 10% sodium hydroxide solution by mass percentage between.

[0031] Weigh 210 grams of the first batch of urea, add it into a three-necked bottle, and add water at 20-30°C to dissolve it. After the first batch of urea is completely dissolved, turn on the water bath heating furnace, and raise the internal temperature to 55°C within 30-40 minutes. Thereafter, continue heating, within 30-...

Embodiment 2

[0046] Embodiment 2, the preparation of the urea-formaldehyde foam matrix of cultivation cool-season lawn and its effect detection

[0047] A commercially available formaldehyde solution with a concentration of 36%-38% is formulated into a formaldehyde solution with a concentration of 30%.

[0048] 1) Preparation of urea-formaldehyde resin solution

[0049] Weigh 865 grams of the above-mentioned 30% formaldehyde solution into a three-necked bottle, start the mixer to stir fully, take a sample of the formaldehyde solution to measure its pH value, and adjust the pH value between 6.4-6.7 with 10% sodium hydroxide solution by mass percentage.

[0050] Weigh 210 grams of the first batch of urea, add it into a three-necked bottle, and add water at 20-30°C to dissolve it. After the first batch of urea is completely dissolved, turn on the water bath heating furnace, and raise the internal temperature to 55°C within 30-40 minutes. Thereafter, continue heating, within 30-60 minutes, t...

Embodiment 3

[0065] Example 3, Preparation of urea-formaldehyde foam matrix for cultivating cool-season turf and its effect detection

[0066] A commercially available formaldehyde solution with a concentration of 36%-38% is formulated into a formaldehyde solution with a concentration of 30%.

[0067] 1) Preparation of urea-formaldehyde resin solution

[0068] Weigh 887 grams of the above-mentioned 30% formaldehyde solution and add it into a three-necked flask, start the mixer to stir fully, take a sample of the formaldehyde solution to measure its pH value, and adjust the pH value between 6.4-6.7 with 10% sodium hydroxide solution by mass percentage.

[0069] Weigh 210 grams of the first batch of urea, add it into a three-necked bottle, and add water at 20-30°C to dissolve it. After the first batch of urea is completely dissolved, turn on the water bath heating furnace, and raise the internal temperature to 55°C within 30-40 minutes. Thereafter, continue heating, within 30-60 minutes, t...

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Abstract

The invention discloses a urea formaldehyde foam matrix for cultivating cold-season turfgrass and a preparation method thereof. The method comprises the following steps that: (1) formaldehyde and urea are mixed to carry out polycondensation reaction, and urea-formaldehyde resin solution is prepared; (2) butyl naphthalene sulfonate, phosphate and water are mixed, and blister fluid is prepared; (3) the blister fluid and the urea-formaldehyde resin solution are foamed in a foaming machine, and liquid foam is prepared; (4) the liquid foam is cured and dried, and a foam matrix is prepared; and (5) aldehyde removal agent, hydrophilizing agent and potassium are dissolved into the water to prepare a mixture, the mixture is sprayed on the surface of the foam matrix and dried, and the urea formaldehyde foam matrix for cultivating cold-season turfgrass is prepared. The matrix is characterized in that water absorption and preservation properties are good, and releasing nitrogen nutrient and nutrition elements required by the growth of other turf are contained. When being used to turf establishment, the matrix not only can be used for turf production on a cultivated land and then paved on other lands, but also can be directly used for turf establishment, and has significant economic, social and ecological benefits.

Description

technical field [0001] The invention relates to a plant cultivation substrate and a preparation method thereof, in particular to a urea-formaldehyde foam substrate for cultivating cool-season lawns and a preparation method thereof. Background technique [0002] With the continuous improvement of my country's comprehensive national strength and the improvement of people's living standards, people's environmental awareness has been continuously strengthened, and the society has paid more and more attention to environmental greening, especially green spaces are loved by people. Lawn occupies a relatively important position in urban greening, and the market demand is relatively large. Turfgrasses are divided into warm-season and cool-season. Warm-season turfgrass mainly includes bison grass, bermudagrass and zoysia, and cool-season turfgrass mainly includes bluegrass, ryegrass, fenugreek and tall fescue. Because cool-season turfgrass has the advantages of drought resistance, co...

Claims

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Application Information

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IPC IPC(8): C08L61/24C08J9/04C08J9/36C08G12/36C08K3/24C08K3/30A01G31/02
CPCY02P60/21
Inventor 谷佳林徐秋明刘宝存曹兵衣文平杨宜斌
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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