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Composite stabilizing agent for transparent polyvinyl chloride (PVC) material and preparation method thereof

A composite stabilizer and main stabilizer technology, applied in the chemical industry, can solve the problem of high cost, achieve the effect of improving thermal stability, reducing production cost, and good economic benefits

Active Publication Date: 2012-04-18
SHANDONG RUIFENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the cost of existing organotin stabilizers is relatively high, the present invention proposes a composite stabilizer for transparent PVC and a preparation method thereof

Method used

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  • Composite stabilizing agent for transparent polyvinyl chloride (PVC) material and preparation method thereof
  • Composite stabilizing agent for transparent polyvinyl chloride (PVC) material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare the composite stabilizer for transparent PVC according to the following formula and method:

[0017] Formula: main stabilizer: methyl tin mercaptide, 78 parts, lanthanum stearate, 5 parts; auxiliary stabilizer: monophenylenedioctyl phosphite, 4 parts, epoxy soybean oil, 10 parts and mass ratio 1 : 1 part of β-diketone compound formed by mixing rigid benzoylmethane and benzoylmethane, 3 parts; emulsifier: OP-10, 1 part; defoamer: tributyl phosphate, 0.1 part .

[0018] Preparation method: add methyl tin mercaptide, 78 parts, lanthanum stearate, 5 parts and OP-10, 1 part into the reaction kettle and stir, control the stirring speed at 200-500r / min, when the temperature rises to 70-80 At ℃, add phenylenedioctyl phosphite, 4 parts, epoxidized soybean oil, 10 parts and β-diketone mixed with rigid benzoylmethane and benzoylmethane in a mass ratio of 1:1 3 parts of similar compound, 0.1 part of tributyl phosphate was added during the stirring process, stirred for 50-...

Embodiment 2

[0020] Except that the organotin compound is changed to butyltin mercaptide, the others are the same as in Example 1.

Embodiment 3

[0022] Except that the organotin compound was changed to dibutyltin dilaurate, the others were the same as in Example 1.

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Abstract

The invention belongs to the field of chemical engineering, and specifically, relates to a composite stabilizing agent for a transparent polyvinyl chloride (PVC) material and a preparation method thereof. The composite stabilizing agent for a PVC material comprises: by weight, 55 to 120 parts of main stabilizing agents, 5.5 to 25 parts of auxiliary stabilizing agents and 1.55 to 3.5 parts of auxiliary agents. The main stabilizing agents comprise: by weight, 50 to 90 parts of one or more organic tin compounds and 5 to 30 parts of one or more rare earth compounds. The auxiliary stabilizing agents comprise: by weight, 1 to 10 parts of one or more phosphite ester compounds, 4 to 10 parts of epoxy soybean oil and 0.5 to 5 parts of beta-diketone compounds. The auxiliary agents comprise: by weight, 1.5 to 3 parts of an emulsifier and 0.05 to 0.5 parts of an antifoaming agent. The composite stabilizing agent for a PVC material has good thermostability, does not influence PVC product transparency, and has certain machinability and lubricity. The preparation method cam greatly reduce a product production cost without change of thermostability through addition of the auxiliary stabilizing agents having relatively low costs, and has good economic benefits.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a composite stabilizer for transparent PVC and a preparation method thereof. Background technique [0002] In recent years, the rapid development of my country's polyvinyl chloride (PVC) industry and the adjustment and optimization of consumption structure have greatly promoted the rapid development of research and development, production, application and consumption of plastic heat stabilizers. Because organotin has excellent properties such as good thermal stability, initial colorability, non-toxicity, and transparency, it is still the most widely used and most effective type of heat stabilizer among PVC heat stabilizers. One of the fastest PVC stabilizers with an average annual growth rate of 32%. However, the single use of organotin heat stabilizers has the problem of high cost, so developing a low-cost, highly efficient and non-toxic composite stabilizer for tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/00C08K5/37C08K5/098C08K5/1515C08K5/524C08K5/521
Inventor 呼建强刘春信张海瑜冯健张振国
Owner SHANDONG RUIFENG CHEM
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