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Application of dicarboxylic alkali metal salt serving as zinc burning inhibitor

A technology of alkali metal carboxylic acid salt and zinc sintering inhibitor, which is applied in the application field of dibasic carboxylic acid alkali metal salt as zinc sintering inhibitor, can solve the problems of high price, restricted development space and the like, and achieves low cost and operation method. Simple and convenient, obvious effect

Active Publication Date: 2015-09-16
HUBEI NANXING CHEM GENERAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also the patent whose publication number is CN102219926, the patent whose publication number is CN102093648 and the patent whose announcement number is CN101942160B. It is also correspondingly introduced that β-diketone can be used to delay zinc burning. Although the effect is very good, the price is relatively expensive. The price can reach about 4-5 times that of other heat stabilizers, which seriously restricts its development space

Method used

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  • Application of dicarboxylic alkali metal salt serving as zinc burning inhibitor
  • Application of dicarboxylic alkali metal salt serving as zinc burning inhibitor
  • Application of dicarboxylic alkali metal salt serving as zinc burning inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0028] The selected dibasic carboxylic acid alkali metal salts are shown in Table 1 below:

[0029] The specific kind of the dibasic carboxylic acid alkali metal salt that table 1 selects for use

[0030]

Embodiment 3

[0032] Example 3: Grinding disodium sebacate until the particle size is below 0.05mm, dissolving and fully stirring, the stirring rate is controlled at 200rad / min;

Embodiment 4

[0033] Example 4: Dilithium maleate was pulverized until the particle size was between 0.01-0.03 mm, then dissolved and fully stirred, and the stirring rate was controlled at 300 rad / min.

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Abstract

The invention provides application of a dicarboxylic alkali metal salt serving as a zinc burning inhibitor. The dicarboxylic alkali metal salt is straight-chain carboxylate or branched chain carboxylate, an alkyl in the dicarboxylic alkali metal salt is a saturated alkyl or unsaturated alkyl, the number of carbon atoms of the dicarboxylic alkali metal salt is 4-22, preferably 5-14, and an alkali metal in the dicarboxylic alkali metal salt is sodium, lithium, or potassium. The dicarboxylic alkali metal salt disclosed by the embodiment of the invention has a good effect on zinc burning inhibition, and is low in price, low in cost, and environmentally friendly.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to the application of a dibasic carboxylic acid alkali metal salt as a zinc burning inhibitor. Background technique [0002] PVC materials can be used for packaging, walls, pipes, films and profiles, and its large-scale application depends on the addition of excellent heat and light stabilizers to the polymer. For example, thermal degradation and photodegradation can cause discoloration and changes in physical properties of materials. The addition of excellent stabilizers can improve the application and manufacturing conditions of these materials. [0003] Generally, in the process of PVC processing, PVC plastic can only be processed and formed when it is above 160°C, and it begins to thermally decompose at 120-130°C, releasing HCl gas. If the generation of HCl is not suppressed, the decomposition will be further intensified. Studies have found that if PVC plastic contains a small ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/098
CPCC08K5/098C08K2201/003C08L27/06
Inventor 龙守奎韩永和王爱红张武华钟新乐高勇王友李继文吴翔黄凰
Owner HUBEI NANXING CHEM GENERAL FACTORY
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