A kind of composite waterproof wax and its preparation method and application

A paraffin wax and mixture technology, applied in the field of composite waterproof wax and its preparation, can solve the problems of reducing the adsorption of paraffin wax and wood-based panel fibers, affecting the waterproof effect, and poor waterproof effect

Active Publication Date: 2021-08-03
ZHAOQING LIHE TECH DEV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, in the actual production process, paraffin is used as the waterproofing agent for wood-based panels, and the waterproof effect of the wood-based panel products obtained by the above-mentioned production process needs to be improved.
Among them, the reasons for the poor waterproof effect of wood-based panel products mainly include the following three aspects: First, the adsorption of paraffin wax and wood-based panel fibers is a physical adsorption process. It leads to a partial "desorption" phenomenon between paraffin and fiber; second, the adsorption effect of paraffin and wood-based panel fiber is related to the moisture content of the wood-based panel raw material. When the moisture content of the wood-based panel raw material is higher than 10%, it will be significantly reduced. The adsorption of paraffin wax and wood-based panel fibers affects the waterproof effect; third, when the paraffin wax cools from a high-temperature melting state to a solid state in the wood-based panel fibers, the volume shrinkage rate is as high as 13%, which will cause small cracks on the surface of the wood-based panel fibers. Form capillary adsorption on external water molecules, greatly reducing the waterproof effect

Method used

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  • A kind of composite waterproof wax and its preparation method and application
  • A kind of composite waterproof wax and its preparation method and application

Examples

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preparation example Construction

[0030] The present invention provides the preparation method of the composite waterproof wax described in the above technical scheme, comprising the following steps:

[0031] The paraffin wax, crystallization modifier, surface active agent, penetrating agent and propping agent are mixed to obtain the composite waterproof wax.

[0032] The invention mixes paraffin wax, crystal modifier, surface active agent, penetrating agent and propping agent to obtain the composite waterproof wax. In the present invention, the mixing preferably includes the following steps:

[0033] Heating paraffin to melt; obtaining liquid paraffin;

[0034] performing the first mixing of the liquid paraffin, the crystallization modifier and the proppant to obtain a first mixture;

[0035] performing a second mixing of the first mixture, penetrant and surfactant to obtain a second mixture;

[0036] The second mixture is cooled and discharged to obtain the composite waterproof wax.

[0037] In the prese...

Embodiment 1

[0050] No. 75g No. 54 semi-refined paraffin wax is heated to 80 ℃, after melting completely, obtains liquid paraffin; The first mixing of described liquid paraffin, 10g polyamide wax and 8g hydrogenated styrene-butadiene block copolymer (temperature is 85 ℃, the stirring speed is 300rpm, and the stirring time is 80min), to obtain the first mixture; the first mixture, 15g No. 26 white oil and 10g octadecylamine are mixed for the second time (the temperature is 90°C, and the stirring speed is 100rpm, the stirring time is 30min) to obtain the second mixture; the second mixture is cooled to 60°C and discharged to obtain the composite waterproof wax.

Embodiment 2

[0052] No. 59g No. 56 semi-refined paraffin wax is heated to 90 DEG C, and after melting completely, liquid paraffin is obtained; The liquid paraffin, 5g polyamide wax and 3g hydrogenated styrene-butadiene block copolymer are mixed for the first time (temperature is 90 ℃, the stirring speed is 150rpm, and the stirring time is 80min), to obtain the first mixture; the first mixture, 5g vegetable methyl oleate and 5g octadecyl phosphate are mixed for the second time (the temperature is 100°C, The stirring speed is 100 rpm, and the stirring time is 30 min) to obtain the second mixture; the second mixture is cooled to 60° C. and discharged to obtain the composite waterproof wax.

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Abstract

The invention relates to the technical field of wood-based panel waterproofing agents, in particular to a composite waterproofing wax and its preparation method and application. The composite waterproof wax provided by the invention comprises the following components in parts by mass: 59-85 parts of paraffin wax, 5-15 parts of crystal modifier, 5-15 parts of surfactant, 5-30 parts of penetrant and proppant 3-10 parts; the proppant includes hydrogenated styrene-butadiene block copolymer. The results of the examples show that the composite waterproof wax provided by the invention has an excellent waterproof effect.

Description

technical field [0001] The invention relates to the technical field of wood-based panel waterproofing agents, in particular to a composite waterproofing wax and its preparation method and application. Background technique [0002] At present, paraffin wax is mainly used as a waterproofing agent in the production process of wood-based panels. After melting the paraffin at high temperature and spraying it into the wood-based panel fibers, and then under the action of mechanical grinding and rubbing, the paraffin wax is adsorbed on the surface of the wood-based panel fibers, or partially Block the gaps between fibers, reduce the contact surface between water and fibers, and play a waterproof effect. [0003] However, in the actual production process, paraffin is used as the waterproofing agent of the wood-based panel, and the waterproof effect of the wood-based panel product obtained by the above-mentioned production process still needs to be improved. Among them, the reasons ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/50B27K3/36B27K3/02B27N1/00B27N3/04C08L91/06C08L53/02C08L77/00C08L23/06C08K5/17C08K5/101C08K5/521
CPCB27K3/0228B27K3/36B27K3/50B27K2200/15B27K2240/70B27N1/00B27N3/04C08L91/06C08L2205/025C08L2205/03C08L2205/035C08L53/025C08L77/00C08K5/17C08K5/101C08K5/521C08L23/06
Inventor 齐振宇
Owner ZHAOQING LIHE TECH DEV
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