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Lead stearate stable lubricant, and production method and heat stabilizer composition thereof

A technology of lead stearate and its production method, which is applied in the field of thermal stabilizer composition formula and lead stearate stabilized lubricant for polyvinyl chloride composite stabilizer, and can solve the problems of difficult operation, high toxicity and low catalytic efficiency and other issues to achieve the effect of simplifying the process, reducing labor and reducing pollution

Active Publication Date: 2014-07-23
NANJING XIEHE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This method directly adopts lead oxide and stearic acid to react at a high temperature under the action of a catalyst, which solves the problem of waste water and dust, but the catalysts in the prior art include sodium acetate, ethylenediamine and phosgene, etc., which are not only difficult to operate, and the catalyst The disadvantages of additional production, high toxicity, low catalytic efficiency, and difficult subsequent separation of catalysts have hindered the industrialization and popularization of this method.

Method used

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  • Lead stearate stable lubricant, and production method and heat stabilizer composition thereof
  • Lead stearate stable lubricant, and production method and heat stabilizer composition thereof
  • Lead stearate stable lubricant, and production method and heat stabilizer composition thereof

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Experimental program
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Effect test

Embodiment 1

[0039] The fatty acid amide catalyst used in this embodiment is: .

[0040] Put 100 kg of stearic acid, 25 kg of paraffin wax and 2 kg of catalyst into the stirring reactor, and heat to 60°C to melt; gradually add 40 kg of lead oxide, finish adding within 45 min, react while adding, and maintain a stirring speed of 30 rpm, the temperature is controlled at 80°C. When the color of the reaction system changes from yellow to white, the reaction is considered to be finished, and the stable lubricant of lead stearate is obtained by discharging.

Embodiment 2

[0042] The fatty acid amide catalyst used in this embodiment is: .

[0043] Put 100 kg of stearic acid, 80 kg of polyethylene wax and 10 kg of catalyst into the stirring reactor at a stirring speed of 45 rpm, and heat to 70°C to melt; gradually add 120 kg of lead oxide, and complete the addition within 60 minutes, while adding React, and maintain a stirring speed of 85 rpm, control the temperature at 100 ° C. When the color of the reaction system changes from yellow to white, the reaction is considered to be finished, and the stable lubricant of lead stearate is obtained by discharging.

Embodiment 3

[0045] The fatty acid amide catalyst used in this embodiment is: .

[0046] Put 100 kg of stearic acid and 1 kg of catalyst into the stirred reactor at a stirring speed of 40 rpm, and heat to 85°C to melt; gradually add 135 kg of lead oxide, finish adding within 50 min, react while adding, and maintain the stirring speed 60 rpm, the temperature is controlled at 120°C. When the color of the reaction system changes from yellow to white, the reaction is considered to be finished, and the stable lubricant of lead stearate is obtained by discharging.

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Abstract

The invention belongs to the field of polyvinyl chloride plastic processing aids, and relates to a lead stearate stabilized lubricant, a production method thereof and a heat stabilizer composition. The invention uses fatty acid amide as catalyst to catalyze the reaction of stearic acid and lead oxide. Catalyst fatty acid amides compound of the present invention can catalyze stearic acid and lead oxide direct reaction and generate a series of products between lead stearate to dibasic lead stearate; Catalyst fatty acid amides compound is still a kind of good lubricant. Therefore, after the reaction finishes, there is no need to separate the catalyst from the reaction system, and it can directly exist as a component of the product and be used as a high-efficiency lubricant for a composite stabilizer; the technical scheme of the present invention is essentially a non-aqueous synthesis method without Wastewater is discharged, and the reaction system in the production method of the lead stearate stable lubricant is a viscous feed liquid system, so the reaction solves the problem of dust pollution in the product production process.

Description

Technical field [0001] The present invention belongs to the field of polyvinyl chloride plastic processing auxiliary, involving a stabilized lubricant and its production methods and thermal stabilizer compositions in a lubble type. It is specifically a type of chloride composite stabilizer.Stable lubricants and its production methods, as well as the formula formula of the main component of the main component. Background technique [0002] Polyvinyl chloride resin is prone to heat degradation, so various additives must be added during the processing molding process, such as thermal stabilizers, internal and external lubricants, light stabilizers, antioxidants and other auxiliary ingredients.The quality of the function will directly affect the performance of polyvinyl chloride plastic products.Among various additives, the most important thing is the thermal stabilizer.Among the many thermal stabilizers, there can be as a thermal stabilizer or a high -efficiency external lubricant.E...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K5/098C08K5/20C08L27/06C07C53/126C07C51/41
Inventor 黄艳
Owner NANJING XIEHE CHEM
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