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A liquid barium/zinc transparent composite heat stabilizer for pvc

A technology of composite heat stabilizer and auxiliary heat stabilizer, which is applied in the field of transparent barium/zinc composite heat stabilizer for PVC and its preparation, and heat stabilizer for PVC, which can solve the problems of low stabilization efficiency, expensive transparency, toxic price, etc. problems, to achieve the effects of improved aging resistance, prolonged thermal stability time, and improved transparency

Active Publication Date: 2019-07-30
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these stabilizers have their own advantages, they have disadvantages such as toxicity, high price, poor transparency, and low stabilization efficiency.

Method used

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  • A liquid barium/zinc transparent composite heat stabilizer for pvc
  • A liquid barium/zinc transparent composite heat stabilizer for pvc
  • A liquid barium/zinc transparent composite heat stabilizer for pvc

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Barium isooctanoate and zinc isooctanoate were uniformly mixed in a high-speed mixer according to the ratio in Table 1 to prepare barium isooctanoate / zinc composite heat stabilizer.

[0026] Table 1 barium isooctanoate / zinc composite heat stabilizer formula

[0027]

[0028]

[0029] Mix 4 parts of the prepared composite heat stabilizer, 40 parts of DOP, and 100 parts of PVC evenly, and plasticize it on a double-roll rubber mixer with a roll temperature of 160 ° C and a roll distance of 1.5 mm, and then pelletize it into a test tube. In an oil bath at ℃, the static thermal stability of the compound was measured according to the national standard GB / T2917.1-2002 Congo red method, and the results are shown in Table 2.

[0030] Table 2 Static thermal stability test of different compound ratios of barium isooctanoate / zinc isooctanoate

[0031]

[0032] The data in Table 2 shows that the barium / zinc compound has a certain synergistic effect, and the thermal stabili...

example 2

[0041] Mix barium isooctanoate, zinc isooctanoate and hydrotalcite in a high-speed mixer according to the ratio in Table 5 to prepare barium isooctanoate / zinc composite heat stabilizer.

[0042] Table 5 barium isooctanoate / zinc / hydrotalcite composite heat stabilizer formula

[0043]

[0044] Mix 4 parts of the prepared composite heat stabilizer, 40 parts of DOP, and 100 parts of PVC evenly, and plasticize it on a double-roll rubber mixer with a roll temperature of 160 ° C and a roll distance of 1.5 mm, and then pelletize it into a test tube. In an oil bath at ℃, the static thermal stability of the compound was measured according to the national standard GB / T2917.1-2002 Congo red method, and the results are shown in Table 6.

[0045] The static heat stability test of table 6 barium isooctanoate / zinc / hydrotalcite composite heat stabilizer

[0046]

[0047] The data in Table 6 shows that the addition of hydrotalcite can significantly improve the static thermal stability of...

example 3

[0055] Barium isooctanoate, zinc isooctanoate and organotin mercaptide were uniformly mixed in a high-speed mixer according to the ratio in Table 9 to prepare a barium isooctanoate / zinc composite heat stabilizer.

[0056]Table 9 barium isooctanoate / zinc / thiol organotin composite heat stabilizer formula

[0057]

[0058] Mix 4 parts of the prepared composite heat stabilizer, 40 parts of DOP, and 100 parts of PVC evenly, and plasticize it on a double-roll rubber mixer with a roll temperature of 160 ° C and a roll distance of 1.5 mm, and then pelletize it into a test tube. In an oil bath at ℃, the static thermal stability of the compound was measured according to the national standard GB / T2917.1-2002 Congo red method, and the results are shown in Table 10.

[0059] Table 10 Static thermal stability test of barium isooctanoate / zinc / mercaptan organotin composite heat stabilizer

[0060]

[0061] The data in Table 10 shows that the addition of mercaptan organotin can signific...

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Abstract

The invention relates to a liquid barium / zinc transparent composite heat stabilizer for PVC (Polyvinyl Chloride). The liquid barium / zinc transparent composite heat stabilizer is prepared from a main stabilizer and an auxiliary heat stabilizer, wherein the main stabilizer is a composite heat stabilizer prepared from barium isotanoate and zinc isoocatanoate according to a certain proportion; the auxiliary heat stabilizer is hydrotalcite or organic tin. The barium / zinc composite heat stabilizer is creatively selected as a main stabilizer of a PVC material, and a best synergistic effect is achieved by limiting the proportion of the barium isotanoate to the zinc isoocatanoate at 3 / 1; compared with the prior art, the liquid barium / zinc transparent composite heat stabilizer has the advantages of prolonged heat stabilizing time, better aging-resisting effect, higher transparence and better effect than other schemes in the prior art.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a heat stabilizer for PVC, in particular to a transparent barium / zinc composite heat stabilizer for PVC and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose resins in the world and one of the earliest industrialized resins. Its annual output is second only to polyethylene. It is widely used in various fields of people's lives because of its excellent performance and low price. With the rapid development of my country's economy, the demand for PVC is increasing day by day. Since it was put into practical application in the 1930s to the present, the application output of PVC has always ranked first in the plastic processing industry. However, the biggest problem restricting the widening application of PVC is its poor thermal stability. According to the experimental results, PVC has already begun to deco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/098C08K3/26C08K5/57C08K5/12
CPCC08K3/26C08K5/098C08K5/12C08K5/57C08K13/02C08K2201/014C08L2201/08C08L2201/10C08L27/06
Inventor 邬素华李为郭晓静倪凯
Owner TIANJIN UNIV OF SCI & TECH
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