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Application of hard foamed polyurethane in rejuvenation and conservation of old and precious trees

A technology for polyurethane rigid foam and ancient trees, applied in the field of polyurethane rigid foam, can solve the problems of rejuvenation and maintenance of ancient and famous trees that are not found, and achieve the effects of preventing continued decay or damage, long service life, and simple molding process.

Active Publication Date: 2006-04-26
BEIJING DONGFANG YUANJING LANDSCAPE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although polyurethane rigid foam has the characteristics of waterproof, anti-corrosion, compression resistance, not easy to collapse, long life, simple molding process, and strong bonding strength with wood, so far no use of polyurethane rigid foam for ancient and famous trees has been found. Rejuvenation and maintenance reports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The application of polyurethane rigid foam in the rejuvenation and maintenance of ancient and famous trees is realized by the following steps:

[0017] 1. Clean up tree holes. Thoroughly clean and remove the debris in the tree hole, especially the rotten xylem and infected tissues must be scraped until fresh tissues are exposed. The disease-free bark on the edge of the tree hole is cut off to a width of 0.5 cm, and the edges are flattened.

[0018] 2. Disinfection. Smear or spray the scars after scraping with lime sulfur stock solution or 1:15 copper sulfate aqueous solution to carry out disinfection treatment.

[0019] 3. Internal support. Connect them into an indefinite shape with steel bars and barbed wire, and put them into tree holes for internal support. This not only increases the load capacity of the trunk, resists wind and folds, saves space, but also looks beautiful.

[0020] 4. Filling. The polyurethane rigid foam is obtained by the following method: tw...

Embodiment 2

[0023] The application of polyurethane rigid foam in the rejuvenation and maintenance of ancient and famous trees is realized by the following steps:

[0024] 1. Clean up tree holes. Thoroughly clean and remove the debris in the tree hole, especially the rotten xylem and infected tissues must be scraped until fresh tissues are exposed. The disease-free bark on the edge of the tree hole is cut off to a width of 0.5 cm, and the edges are flattened.

[0025] 2. Disinfection. Smear or spray the scars after scraping with lime sulfur stock solution or 1:15 copper sulfate aqueous solution to carry out disinfection treatment.

[0026] 3. Internal support. Connect them into an indefinite shape with steel bars and barbed wire, and put them into tree holes for internal support. This not only increases the load capacity of the trunk, resists wind and folds, saves space, but also looks beautiful.

[0027] 4. Filling. The polyurethane rigid foam is obtained by the following method: tw...

Embodiment 3

[0030] The application of polyurethane rigid foam in the rejuvenation and maintenance of ancient and famous trees is realized by the following steps:

[0031] 1. Clean up tree holes. Thoroughly clean and remove the debris in the tree hole, especially the rotten xylem and infected tissues must be scraped until fresh tissues are exposed. The disease-free bark on the edge of the tree hole is cut off to a width of 0.5 cm, and the edges are flattened.

[0032] 2. Disinfection. Smear or spray the scars after scraping with lime sulfur stock solution or 1:15 copper sulfate aqueous solution to carry out disinfection treatment.

[0033] 3. Internal support. Connect them into an indefinite shape with steel bars and barbed wire, and put them into tree holes for internal support. This not only increases the load capacity of the trunk, resists wind and folds, saves space, but also looks beautiful.

[0034] 4. Filling. The polyurethane rigid foam is obtained by the following method: tw...

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Abstract

The invention relates to a new use of polyurethane hard bubble, which in detail is used as filling materials for the rejuvenating and curing of told and good trees in the tree holes. The application of the said polyurethane hard bubble in the tree rejuvenating and curing is realized by the following steps: connecting the concrete iron and iron wire to indefinite shape and putting it into the tree hole as inner support; mixing and stirring the liquid of blowing agent- isocyanate and polyether with the proportion to be 1:0.5-1.5; pouring the mixture mentioned above into the tree hole with 70-300 kg per cubic meter; fixing and sealing with preformed mold in the out, pressing bark line in the top or spiking one layer of real bark. The invention is characterized by the following aspects: water resistance, antiseptic, compression, wind resistant, resistant to flame, long working life, near contraction and expansion with the tree, elastic, the effective prevention of the continuing tree rotting and damage by the compact association with the tree, little influence of the tree growth, beautiful and simple shaping process.

Description

【Technical field】 [0001] The invention relates to the use of polyurethane hard foam, in particular to the use in rejuvenation and maintenance of ancient and famous trees. 【Background technique】 [0002] Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic", and is widely used in many fields of the national economy because of its excellent performance. Product applications involve light industry, chemical industry, electronics, textiles, medical treatment, construction, building materials, automobiles, national defense, aerospace, aviation and other fields. [0003] Among them, rigid polyurethane rigid foam, referred to as polyurethane rigid foam, is mostly closed-cell structure, which has excellent characteristics such as good heat insulation effect, good waterproof, light weight, high specific strength, and convenient construction. It also has sound insulation, shockproof, and electrical insulation. , heat resistance, cold resistance, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G13/00C08L75/04
Inventor 闫少春
Owner BEIJING DONGFANG YUANJING LANDSCAPE ENG
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