Method for synthesizing organic salt heat stabilizer

A heat stabilizer and synthesis method technology, applied in the direction of organic chemistry, can solve problems such as unsatisfactory effects, and achieve the effect of slowing down zinc burning and improving the initial coloring

Active Publication Date: 2013-09-25
ZHEJIANG TRANSFAR WHYYON CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the early development process of PVC heat stabilizers, heat stabilizers were generally obtained by simply mixing traditional organic acid metal soaps with phosphite, antioxidants, etc., and the effect was not very satisfactory.

Method used

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  • Method for synthesizing organic salt heat stabilizer
  • Method for synthesizing organic salt heat stabilizer
  • Method for synthesizing organic salt heat stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The synthetic method of organic salt thermal stabilizer of the present invention is as follows:

[0029] (1) Add water and zinc oxide in sequence in the kneading kettle, and introduce carbon dioxide to react at a temperature of 120°C. The molar ratio of zinc oxide to water is 1:4, and the molar ratio of zinc oxide to carbon dioxide is 1:0.7, 3 After 1 hour, basic zinc carbonate was obtained.

[0030] (2) Add basic zinc carbonate, isooctanoic acid, glycerin and diethylene glycol butyl ether in sequence in the kneading kettle, and react under nitrogen protection at 200°C for 8 hours to obtain a mixed zinc soap of isooctanoic acid / glycerin, basic zinc carbonate and The molar ratio of isooctanoic acid is 1:6.5, the molar ratio of basic zinc carbonate to glycerol is 1:6.5, and the mass ratio of diethylene glycol butyl ether to isooctanoic acid is 1:1.

[0031] (3) Add isooctanoic acid / glycerin mixed zinc soap, isodecyl alcohol, and triphenyl phosphite in sequence in the rea...

Embodiment 2

[0039] The synthetic method of organic salt thermal stabilizer of the present invention is as follows:

[0040] (1) Add water and zinc oxide in sequence in the kneading kettle, and pass in carbon dioxide to react at a temperature of 100°C. The molar ratio of zinc oxide to water is 1:3, and the molar ratio of zinc oxide to carbon dioxide is 1:1,6 After 1 hour, basic zinc carbonate was obtained.

[0041] (2) Add basic zinc carbonate, lauric acid, glycerin and ethylene glycol butyl ether in sequence in the kneading kettle, and react under nitrogen protection at 180°C for 10 hours to obtain lauric acid / glycerin mixed zinc soap, basic zinc carbonate and laurel The molar ratio of acid is 1:6, the molar ratio of basic zinc carbonate to glycerin is 1:6, the mass ratio of butyl glycol ether to lauric acid is 0.8:1, and the mass ratio of butyl glycol ether to lauric acid is 1 :2.

[0042] (3) Add lauric acid / glycerin mixed zinc soap, isotridecanol, 4,4'-isopropyldiphenyl C 12-14 -alc...

Embodiment 3

[0049] The synthetic method of organic salt thermal stabilizer of the present invention is as follows:

[0050] (1) Add water and zinc oxide in sequence in the kneading kettle, pass in carbon dioxide, and react at a temperature of 200 ° C. The molar ratio of zinc oxide to water is 1:5, and the molar ratio of zinc oxide to carbon dioxide is 1:1,5 After 1 hour, basic zinc carbonate was obtained.

[0051] (2) Add basic zinc carbonate, p-tert-butylbenzoic acid, glycerin and dipropylene glycol methyl ether in sequence in the kneading kettle, and react under nitrogen protection at 260°C for 6 hours to obtain p-tert-butylbenzoic acid / glycerin mixed zinc soap, The molar ratio of basic zinc carbonate to lauric acid is 1:7, the molar ratio of basic zinc carbonate to glycerin is 1:7, and the mass ratio of dipropylene glycol methyl ether to lauric acid is 0.6:1.

[0052] (3) Add p-tert-butylbenzoic acid / glycerol mixed zinc soap, isododecanol, tetraphenyldipropylene glycol diphosphite in ...

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Abstract

The invention discloses a method for synthesizing an organic salt heat stabilizer. The conventional general polyvinyl chloride (PVC) heat stabilizer is obtained by simply mixing and compounding a traditional organic acid metallic soap, phosphite ester, an antioxidant and the like, and the heat stabilization effect is not ideal. According to the technical scheme, the method comprises the following steps: preparing metal subcarbonate from a metallic oxide or metal hydroxide, and reacting the metal subcarbonate with an organic acid / glycerol mixture and a dispersing agent to obtain an organic acid metal salt; reacting the organic acid metal salt with high-carbon isomerism alcohol and phosphite ester, and removing alcohol and phenol to obtain an organic metal phosphite complex in a vacuum mode; and finally, compounding the organic metal phosphite complex, an antioxidant, an auxiliary heat stabilizer and a solvent to obtain the product. According to the obtained organic salt heat stabilizer, the zinc burning phenomenon is relieved, and the primary stainability and transparency and medium and long term stability of the PVC products are improved.

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to a method for synthesizing an organic salt heat stabilizer. Background technique [0002] Chlorine-containing polymers such as polyvinyl chloride (PVC) are widely used in building materials, chemicals, packaging, electrical and other industries due to their advantages of flame retardancy, high performance and low price. However, during the processing and molding process of PVC, the color will deepen due to the increase of temperature, the physical and mechanical properties will decrease, and even the use value will be lost. Therefore, stabilizers are usually added to prevent the decomposition of PVC due to high temperature during processing. [0003] In the early development process of PVC heat stabilizers, traditional organic acid metal soaps, phosphites, antioxidants, etc. were simply mixed and compounded to obtain heat stabilizers, and the effect was not very satisfactory. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/00C08K5/524C08K5/526C08K5/103C08K5/101C07F19/00
Inventor 陈旻刘杰童敏伟巫书刚谭莉莉
Owner ZHEJIANG TRANSFAR WHYYON CHEM
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