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Rosin furan preservative for dipping cotton wood and preparation method and application thereof

A preservative and furan technology, applied in the field of rosin furan preservative and its preparation, can solve the problems of environmental pollution of impregnating liquid, long processing route, lack of technical methods, etc., and achieves good anti-corrosion effect, good loss resistance and raw material source. wide effect

Active Publication Date: 2017-08-01
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many treatment methods, but some of these methods have the impregnation solution used to pollute the environment. The commonly used wood preservatives at home and abroad mainly include CCA, copper chromium boron (CCB), fluorochrome phenol arsenic (FCAP), ammonia-soluble copper arsenate (ACA), acid copper chromate (ACC), etc., some have long processing routes and high costs
Pine resin is rich in phenols, organic acids, furans, alcohols and other compounds, which have a certain bactericidal effect and have application potential in the field of anticorrosion, but there is still a lack of corresponding technical methods

Method used

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  • Rosin furan preservative for dipping cotton wood and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] (1) Collect 20 parts of rosin and 100 parts of absolute ethanol from Pine massoniana, and stir in a water bath at a temperature of 40° C. until a uniform rosin solution is obtained, which is a pine resin alcohol solution.

[0019] (2) Hydrolyze 1,4-dichlorobutene in sodium hydroxide solution to generate butenediol at 110°C, centrifuge to remove sodium chloride, concentrate the filtrate in an evaporative crystallizer, and separate alkali metal carboxylic acid Salt, and high boilers are removed in a distillation column. Feed the refined butylene glycol into the reactor, use nickel as the catalyst, and hydrogenate the butylene glycol to generate butylene glycol at 80-120°C and a certain pressure, enter the ring-closure reactor after distillation, And 120 ~ 140 ℃ in acidic medium to generate crude tetrahydrofuran, distilled dehydration and off high boilers, and finally distilled to obtain high-purity tetrahydrofuran.

[0020] (3) Add 20 parts of high-purity tetrahydrofuran...

Embodiment 2

[0022] (1) Collect 30 parts of rosin and 200 parts of absolute ethanol from Yunnan pine, and stir in a water bath at a temperature of 40° C. until a uniform rosin solution is obtained, which is a pine resin alcohol solution.

[0023] (2) Hydrolyze 1,4-dichlorobutene in sodium hydroxide solution to generate butenediol at 110°C, centrifuge to remove sodium chloride, concentrate the filtrate in an evaporative crystallizer, and separate alkali metal carboxylic acid Salt, and high boilers are removed in a distillation column. Feed the refined butylene glycol into the reactor, use nickel as the catalyst, and hydrogenate the butylene glycol to generate butylene glycol at 80-120°C and a certain pressure, enter the ring-closure reactor after distillation, And 120 ~ 140 ℃ in acidic medium to generate crude tetrahydrofuran, distilled dehydration and off high boilers, and finally distilled to obtain high-purity tetrahydrofuran.

[0024] (3) Add 30 parts of high-purity tetrahydrofuran to ...

Embodiment 3

[0026] (1) Collect 25 parts of rosin and 150 parts of absolute ethanol from the southern Asian pine, and stir in a water bath at a temperature of 40° C. until a uniform rosin solution is obtained, which is a pinoresin alcohol solution.

[0027] (2) Hydrolyze 1,4-dichlorobutene in sodium hydroxide solution to generate butenediol at 110°C, centrifuge to remove sodium chloride, concentrate the filtrate in an evaporative crystallizer, and separate alkali metal carboxylic acid Salt, and high boilers are removed in a distillation column. Feed the refined butylene glycol into the reactor, use nickel as the catalyst, and hydrogenate the butylene glycol to generate butylene glycol at 80-120°C and a certain pressure, enter the ring-closure reactor after distillation, And 120 ~ 140 ℃ in acidic medium to generate crude tetrahydrofuran, distilled dehydration and off high boilers, and finally distilled to obtain high-purity tetrahydrofuran.

[0028] (3) Add 25 parts of high-purity tetrahyd...

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Abstract

The invention discloses a rosin furan preservative for dipping cotton wood and a preparation method and an application thereof. The preservative is mainly prepared from the following raw materials in parts by weight: 100 parts of pinoresinol solution and 20 to 30 parts of furan monomer, wherein the pinoresinol solution is prepared in the step of mixing 20 to 30 parts of rosin with 100 to 200 parts of organic solvents in parts by weight. The rosin furan preservative for dipping the cotton wood has the advantages of simplicity in preparation, low cost and no toxic effect; conventional high-pollution heavy-metal chemical preservation can be effectively replaced, the pollution is reduced, a preservative effect is good, and the durability of the cotton wood can be effectively increased; and by dipping in the rosin furan polymer preservative, the physical and chemical properties of the cotton wood can be changed, so that the cotton wood has the advantages of good corrosion resistant performance and good leach resistant performance and does not contain heavy metal, and the mothproof, antifungal and rotproof performance is improved.

Description

technical field [0001] The invention belongs to the field of wood processing, and relates to a treatment method for improving wood anti-insect, anti-corrosion and physical properties, in particular to a turpentine furan preservative used for impregnating poplar, its preparation method and application. [0002] technical background [0003] In today's increasingly tense timber resources, how to effectively utilize fast-growing forest timber to make it have a wider range of applications is an effective way to alleviate the shortage of timber resources. The material of poplar wood is poor, and it is easy to rot by moths. The existing poplar wood antiseptic is mainly achieved by impregnating antiseptic agents to destroy the living conditions of fungi and inhibit the reproduction and survival of wood rot fungi. In recent years, the poplar wood processing industry has used various methods to process fast-growing forest wood to obtain ideal materials, as well as insect-proof and ant...

Claims

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Application Information

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IPC IPC(8): B27K3/50B27K3/08B27K5/00
CPCB27K3/08B27K3/50B27K5/001B27K2240/20
Inventor 卫佩行杨华珍丁波司莹莹宋文想
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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