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Method for improving weatherability of outdoor woodware

A wood product and weather resistance technology, which is applied in the field of outdoor wood product surface treatment, can solve problems such as cracking, poor paint quality, discoloration, etc., and achieve the effect of simple process, low cost, and prevention of infiltration and oxidative gas infiltration

Inactive Publication Date: 2019-02-19
界首永恩机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the outdoor wooden products made in the prior art are prone to cracking, discoloration and other phenomena that seriously affect their quality during use due to the poor quality of the paint.

Method used

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  • Method for improving weatherability of outdoor woodware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for improving the weather resistance of outdoor wood products, comprising the following steps:

[0020] (1) In parts by weight, 34 parts of benzoin trunk, 25 parts of Akebia officinalis, and 18 parts of Zhemu were cut into wood chips with a weight of 10g by a chipper, and then mixed evenly, and 0.6 times the weight of petroleum ether was added to the wood chips , after 90 hours of ultrasonic extraction treatment, after heating to remove petroleum ether, the primary product of mixed tree oil was obtained, and then 10% of the volume of concentrated sulfuric acid with a mass fraction of 92.5% was added to the mixed tree oil, and heat preservation and stirring treatment at 45°C for 2 hours Finally, let it stand for 12 hours, and remove the lower layer. The upper layer adopts a mass fraction of 20% sodium hydroxide solution to neutralize the pH to 6.5 to obtain the mixed tree oil product. After the concentrated sulfuric acid and sodium hydroxide solution are processe...

Embodiment 2

[0030] A method for improving the weather resistance of outdoor wood products, comprising the following steps:

[0031] (1) In parts by weight, 36 parts of benzoin trunk, 28 parts of Akebia officinalis, and 20 parts of Zhemu are cut into wood chips with a weight of 15g by a chipper, and then mixed evenly, and 0.7 times the weight of petroleum ether is added to the wood chips , after 95 hours of ultrasonic leaching treatment, after heating to remove petroleum ether, the primary product of mixed tree oil was obtained, and then 13% by volume of concentrated sulfuric acid with a mass fraction of 92.5% was added to the mixed tree oil, and heat preservation and stirring treatment at 48°C for 2.5 hours Finally, let it stand for 12 hours, then remove the lower layer, the upper layer is 20% sodium hydroxide solution and the pH is 7.0 to obtain the mixed tree oil product, after the concentrated sulfuric acid and sodium hydroxide solution are processed, the mixed tree oil can be improved....

Embodiment 3

[0041] A method for improving the weather resistance of outdoor wood products, comprising the following steps:

[0042] (1) In parts by weight, 40 parts of benzoin trunk, 30 parts of Akebia officinalis, and 22 parts of Zhemu are cut into wood chips with a weight of 20g by a chipper, and then mixed evenly, and 0.8 times the weight of petroleum ether is added to the wood chips , after 100 hours of ultrasonic extraction treatment, after heating to remove petroleum ether, the primary product of mixed tree oil was obtained, and then 15% by volume of concentrated sulfuric acid with a mass fraction of 92.5% was added to the mixed tree oil, and the treatment was carried out at 50°C for 3 hours with stirring Finally, let it stand for 12 hours, then remove the lower layer. The upper layer is neutralized with 20% sodium hydroxide solution and the pH is 6.5-7.5 to obtain the mixed tree oil product. After being treated with concentrated sulfuric acid and sodium hydroxide solution, it can im...

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Abstract

The invention discloses a method for improving weatherability of outdoor woodware. The method includes following steps: (1), chipping benzoil trunk, caulis aristolochiae manshuriensis and radix cudraniae, adopting petroleum ether, and extracting to obtain a mixed tree oil finished product; (2), mixing the mixed tree oil finished product, lubricating silicone grease, nano ATO and hafnium oxide to obtain modified mixed tree oil; (3), taking glycidyl methacrylate, methallyl methacrylate and neopentyl diacrylate as monomer to obtain a polymerization emulsion; (4), mixing the polymerization emulsion, the modified mixed tree oil, polydimethylsiloxane, N-octyl diaminoethyl glycine hydrochloride, ethylenediamine sodium propanesulfonate and deionized water to obtain composite paint; (5), grinding the surface of woodware, brushing the composite paint on the surface of the woodware, and naturally airing to obtain the outdoor woodware. The outdoor woodware prepared by the method is good in waterproof performance and illumination-resistant performance and less prone to cracking and color changing when in use.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of outdoor wooden products, and in particular relates to a method for improving the weather resistance of outdoor wooden products. Background technique [0002] Chemically, wood is mainly composed of cellulose, lignin, sugar, starch, protein, inorganic potassium, phosphorus salts and other trace components. Due to the characteristics of its chemical composition, it is susceptible to chemical effects (such as oxidation when exposed to air), microorganisms, biological effects (such as mold, termites, insects, etc.), physical effects (such as volume changes caused by water vapor and temperature changes) , UV damage, mechanical damage (such as rain, hail), etc., industrial waste gas will also accelerate the decomposition of wood fibers. At the same time, unlike general inorganic materials, wood has strong hygroscopicity, which can absorb water from the air and cause swelling. In the proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D191/00C09D5/14C09D7/61C09D7/65C08F220/32C08F220/40C08F222/14
CPCC08F220/32C08F220/325C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09D5/14C09D7/61C09D7/65C09D133/14C08L91/00C08K13/02C08K3/22C08F220/40C08F222/102
Inventor 张海涛
Owner 界首永恩机电科技有限公司
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