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A kind of paraffin emulsion and preparation method thereof

A technology of paraffin emulsion and solid paraffin, applied in the field of chemical industry, can solve the problems of high product viscosity, complicated process, disadvantage, etc.

Active Publication Date: 2021-04-13
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyvinyl formal used in this patent is an adhesive, and the resulting product has a relatively high viscosity, so the use of subsequent processes is not utilized.
[0008] To sum up, in the prior art of paraffin wax emulsion, there are potential safety hazards in the use of organic solvents, or the process is complex and energy-consuming, or the product has high viscosity, so the present invention aims to develop a safe and economical low-viscosity paraffin wax emulsion, which is beneficial to subsequent Processing technology use

Method used

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  • A kind of paraffin emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example is used to illustrate the paraffin emulsion provided by the present invention and its preparation method.

[0028] Add solid paraffin 70kg (mass percentage is 38.779%), compound emulsifier 10.51kg (5.822%) in the reactor that is equipped with stirring paddle, wherein sorbitan monostearate 6.40kg (accounting for compound emulsifier mass percentage 60.9%), fatty alcohol polyoxyethylene ether-20 2.98kg (accounting for 28.35% of compound emulsifier mass percent), polyethylene glycol stearate 1.13kg (accounting for compound emulsifier mass percent 10.75%), heated to 80°C, after stirring evenly, add 20kg of water drop by drop, the emulsion forms a water-in-oil system, add 40kg of water to change the emulsification system from water-in-oil to oil-in-water, add 40kg of water, keep at 80°C for half an hour, cool down and discharge. The viscosity of the product is 13.0s, no delamination after centrifugation at 3000r / min for half an hour, the particle size is 38nm, go...

Embodiment 2

[0030] This example is used to illustrate the paraffin emulsion provided by the present invention and its preparation method.

[0031]Add solid paraffin 70kg (mass percentage is 38.779%), compound emulsifier 10.51kg (5.822%) in the reactor that is equipped with stirring paddle, wherein sorbitan monostearate 6.20kg (accounting for compound emulsifier mass percentage 58.99%), fatty alcohol polyoxyethylene ether-20 0.81kg (accounting for 7.71% of compound emulsifier mass percentage), polyethylene glycol stearate 3.5kg (accounting for compound emulsifier mass percentage 33.30%), heating to 80°C, after stirring evenly, add 20kg of water drop by drop, the emulsion forms a water-in-oil system, add 40kg of water to change the emulsification system from water-in-oil to oil-in-water, add 40kg of water, keep at 80°C for half an hour, cool down and discharge. The viscosity of the product is 12.8s, no delamination after centrifugation at 3000r / min for half an hour, the particle size is 43n...

Embodiment 3

[0033] This example is used to illustrate the paraffin emulsion provided by the present invention and its preparation method.

[0034] Add solid paraffin 70kg (mass percentage is 38.779%), compound emulsifier 10.51kg (5.822%) in the reactor that is equipped with stirring paddle, wherein sorbitan monostearate 6.20kg (accounting for compound emulsifier mass percentage 58.99%), fatty alcohol polyoxyethylene ether-20 1.05kg (accounting for 9.99% of compound emulsifier mass percent), polyethylene glycol stearate 3.26kg (accounting for compound emulsifier mass percent 31.02%), heated to 80°C, after stirring evenly, add 20kg of water drop by drop, the emulsion forms a water-in-oil system, add 40kg of water to change the emulsification system from water-in-oil to oil-in-water, add 40kg of water, keep at 80°C for half an hour, cool down and discharge. The viscosity of the product is 12.3s, no delamination after centrifugation at 3000r / min for half an hour, the particle size is 38nm, go...

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Abstract

The invention discloses a paraffin wax emulsion and a preparation method thereof. Based on the total amount of the paraffin wax emulsion, the paraffin wax emulsion consists of 30-60% by mass of solid paraffin, 2-8% by mass of a composite emulsifier, 32-68% by mass water composition. And it only needs to add solid paraffin and compound emulsifier into the reaction kettle equipped with a stirring paddle, after stirring evenly, slowly add water dropwise at a certain temperature to make this paraffin wax emulsion. When the paraffin emulsion provided by the invention is prepared, the composite emulsifier does not need to be heated and melted or dissolved with a solvent, and the emulsification water does not need to be heated during emulsification. Good stability, good storage stability, easy to compound with other substances in aqueous solution or emulsion, has the advantages of safety, high efficiency, economy and convenience, etc., and can meet the requirements of the fiberboard industry for low wax consumption and good water resistance of waterproofing agents.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to an emulsified paraffin wax for fiberboard processing and a preparation method thereof. Background technique [0002] Paraffin is flaky or needle-like crystals obtained from lubricating oil fractions distilled from crude oil through solvent refining, solvent dewaxing, and solvent deoiling and refining. Paraffin wax has comprehensive properties such as water repellency, oil repellency, and glazing, and is widely used in drilling, textiles, construction, casting, and fiberboard processing. The traditional fiberboard production waterproof process is to melt the solid paraffin and spray it directly into the fiber particles. The consumption of paraffin is large. Affected by the rising international oil price, the price of paraffin has risen year after year, which has brought great economic pressure to the wood-based panel enterprises; and The quality of fiberboar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/05C08L91/06
CPCC08J3/05C08J2391/06
Inventor 张艳维柴广庆王艳飞张楠黄旭张云涛
Owner ANYANG INST OF TECH
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