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A kind of nonionic paraffin wax emulsion for wood modification and its preparation method and application

A technology of wood modification and paraffin wax emulsion, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of waste of raw materials, incompatibility with preservatives, uneven penetration, etc., to improve swelling resistance and enhance anticorrosion. performance, the effect of reducing moisture absorption deformation

Active Publication Date: 2017-01-25
GUANGDONG ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paraffin wax emulsion currently developed has problems such as uneven penetration, trouble and waste of raw materials on the one hand, and the problem of incompatibility with preservatives on the other hand. It is very necessary to find a suitable paraffin wax emulsification technology

Method used

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  • A kind of nonionic paraffin wax emulsion for wood modification and its preparation method and application
  • A kind of nonionic paraffin wax emulsion for wood modification and its preparation method and application
  • A kind of nonionic paraffin wax emulsion for wood modification and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of a non-ionic paraffin wax emulsion for wood modification, comprising the following steps:

[0037] Mix 400g of paraffin wax, 140g of fatty alcohol polyoxyethylene ether (compound of three C16-C18 fatty alcohol polyoxyethylene ethers with a degree of polymerization of 5, 20 and 40) and 10g of maleic anhydride copolymer and place it in an electric heating stirring tank , heat up to 85°C, start the mixer after the solid completely turns into a liquid, stir the mixture in the tank at a high speed of 400r / min, add 1450g of water with a temperature of 90°C at one time, and stir at a high speed of 400r / min The reaction was carried out for 30 min; then the stirring speed was reduced to 60 r / min, and the temperature of the system was lowered to 40° C. to obtain the nonionic paraffin wax emulsion for wood modification.

[0038] The particle size detection results of the non-ionic paraffin wax emulsion for wood modification prepared in this example are as fo...

Embodiment 2

[0042] A preparation method of a non-ionic paraffin wax emulsion for wood modification, comprising the following steps:

[0043] The paraffin wax, fatty alcohol polyoxyethylene ether and tung oil are mixed and placed in the reactor, the temperature is raised and stirred at a high speed of 200r / min. Then, the stirring speed was reduced to 60r / min, and the temperature of the system was lowered to 70°C to obtain the non-ionic paraffin wax emulsion for wood modification; the obtained emulsion by weight percentage contained the following components: paraffin wax 20%, fatty alcohol polyoxyethylene ether 10%, tung oil 1% and water 69%; wherein the fatty alcohol polyoxyethylene ether is three kinds of C16-C18 fatty alcohol polyoxyethylene with a degree of polymerization of 5, 20 and 40 Compounding of vinyl ethers.

Embodiment 3

[0045] A kind of preparation method of the nonionic paraffin wax emulsion that wood modification is used, comprises the following steps:

[0046] Mix paraffin wax, fatty alcohol polyoxyethylene ether and maleic anhydride copolymer and place it in the reactor, raise the temperature and stir at a high speed of 600r / min. After the temperature of the mixture reaches 85°C, add water at a temperature of 80°C, / min speed high-speed stirring reaction 20min, then the stirring speed is reduced to 20r / min, and the system is cooled to 30 ° C, to obtain the non-ionic paraffin emulsion for wood modification; the obtained emulsion contains the following components by weight percentage : Paraffin 30%, fatty alcohol polyoxyethylene ether 9%, maleic anhydride copolymer 0.5% and water 60.5%; wherein said fatty alcohol polyoxyethylene ether is three kinds of C16~ Compounding of C18 fatty alcohol polyoxyethylene ether.

[0047] Application effect example:

[0048] (1) the nonionic paraffin emuls...

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Abstract

The invention discloses a nonionic paraffin emulsion for wood modification, and a preparation method and application thereof. The nonionic paraffin emulsion for wood modification comprises the following components in percentage by weight: 10-30% of paraffin, 6-15% of fatty alcohol-polyoxyethylene ether, 0.5-1.0% of high molecular film former and 60.0-87.0% of water. According to the invention, the stable paraffin emulsion having a small particle size is prepared by completely using fatty alcohol ether-polyoxyethylene nonionic surfactant as emulsifier in combination with the high molecular film former in the absence of co-emulsifier, adopting a reversed-phase emulsion method and adding water once; the prepared paraffin emulsion can be compounded with an acidic liquid, and can also be compounded with an alkaline liquid at the same time; and the paraffin emulsion can be used for enhancing the water resistance and humidity resistance of solid wood and artificial boards to reduce the moisture absorption and deformation phenomenon thereof.

Description

technical field [0001] The invention belongs to the field of wood processing, and in particular relates to a nonionic paraffin wax emulsion for wood modification and a preparation method and application thereof. Background technique [0002] Kong Zhiren and Ren Dexing used surfactant fatty alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether phosphate as emulsifier to make solid paraffin emulsion, which belongs to nonionic and anionic surface active composite type. [0003] Dai Liyang, Li Hongjun, Su Xiuchun, etc. adopted the inverse emulsification method, using the compound of 8% Span80 and Tween80 as the emulsifier, 1% ODS as the emulsification assistant, and the emulsification temperature was 70 ~ 75 ℃ to prepare fine paraffin emulsion. [0004] Li Fengyan et al. used nonionic surfactant octylphenol polyoxyethylene ether and anionic surfactant fatty alcohol ether phosphate potassium salt as emulsifier, and n-amyl alcohol as auxiliary agent, and prepared a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/50B27K3/02
CPCB27K3/50B27K2240/20B27K2240/70
Inventor 谢桂军马红霞张燕君王剑菁陈利芳何雪香曹永建
Owner GUANGDONG ACAD OF FORESTRY
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