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Composite ternary nano rare-earth complex heat stabilizer

A composite heat stabilizer and nano-complex technology, applied in the field of PVC heat stabilizers, to achieve the effects of easy packaging and transportation, reasonable matching, and excellent thermal stability

Inactive Publication Date: 2018-01-05
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent "A Calcium-Zinc Composite Flame-Retardant Heat Stabilizer" (application number: 201310303263.5) discloses a non-toxic calcium-zinc composite heat stabilizer for PVC with flame retardant properties. The composite material is mainly composed of calcium-zinc Heat stabilizer, micron or nano-scale activated zeolite, lubricant, auxiliary heat stabilizer and antioxidant; Chinese patent "a rare earth composite heat stabilizer for rigid PVC" (application number: 201310040221.7) announced a composite The heat stabilizer is a compound made of carboxylic acid rare earth compound, calcium stearate, zinc stearate, and pentaerythritol. The heat stabilizer can not only overcome the shortcomings of existing heat stabilizers such as high toxicity and poor initial heat stability. , and can improve the long-term stability and initial coloring of PVC

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of ternary nano-rare earth complex compound heat stabilizer, comprises the component of following quality:

[0024] Rare earth lanthanum-stearic acid-dibenzoylmethane ternary nanocomplex 3Kg,

[0025] Calcium Stearate 42Kg,

[0026] Zinc stearate 20Kg,

[0027] Epoxidized soybean oil 18Kg,

[0028] Pentaerythritol 7Kg,

[0029] Phosphite 10Kg.

[0030] The preparation method of rare earth lanthanum-stearic acid-dibenzoylmethane ternary nano-complex comprises the steps:

[0031] (1) Accurately weigh lanthanum nitrate, stearic acid and dibenzoylmethane, dissolve in absolute ethanol, the mol ratio of lanthanum nitrate, stearic acid and dibenzoylmethane is 1: 2: 1, stir and mix After uniformity, add polyvinylpyrrolidone with a concentration of 0.1g / ml, stir and dissolve, and prepare a mixed solution;

[0032] (2) Adjust the pH value of the mixed solution to 7.5 with ammonia water, transfer the mixed solution into a three-necked flask, and reflux at 90° C. for 4...

Embodiment 2

[0036] A kind of ternary nano-rare earth complex compound heat stabilizer, comprises the component of following quality:

[0037] Rare earth cerium-stearic acid-dibenzoylmethane ternary nanocomplex 2Kg,

[0038] Calcium Stearate 36Kg,

[0039] Zinc stearate 13Kg,

[0040] Epoxidized soybean oil 25Kg,

[0041] Pentaerythritol 14Kg,

[0042] Phosphite 10Kg.

[0043] The preparation method of the rare earth cerium-stearic acid-dibenzoylmethane ternary nanocomplex is the same as that in Example 1.

[0044] The thermal stability test of the thermal stabilizer prepared in this example was carried out by the Congo red method, the test method was the same as in Example 1, and the test results showed that the thermal stability time was 18 minutes.

Embodiment 3

[0046] A kind of ternary nano-rare earth complex compound heat stabilizer, comprises the component of following quality:

[0047] Rare earth yttrium-stearic acid-dibenzoylmethane ternary nanocomplex 3Kg,

[0048] Calcium Stearate 37Kg,

[0049] Zinc stearate 20Kg,

[0050] Epoxidized soybean oil 22Kg,

[0051] Phosphite 18Kg.

[0052] The preparation method of the rare earth cerium-stearic acid-dibenzoylmethane ternary nanocomplex is the same as that in Example 1.

[0053] The thermal stability test of the thermal stabilizer prepared in this example was carried out by the Congo red method, the test method was the same as in Example 1, and the test results showed that the thermal stability time was 27 minutes.

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PUM

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Abstract

The invention provides a composite ternary nano rare-earth complex heat stabilizer. The composite ternary nano rare-earth complex heat stabilizer is prepared from the following components in parts byweight: 1 to 3 parts of rare earth-stearic acid-dibenzoyl methane ternary nano complex, 10 to 50 parts of calcium stearate, 10 to 40 parts of zinc stearate, and 25 to 50 parts of auxiliary heat stabilizer, wherein the rare earth-stearic acid-dibenzoyl methane ternary nano complex is a nanoscale ternary rare earth complex prepared by adopting rare-earth salt, stearic acid and dibenzoyl methane as raw materials. The heat stabilizer is prepared by adding the nano rare earth complex into the zinc-calcium heat stabilizer, so that the heat stability of the composite heat stabilizer is improved.

Description

technical field [0001] The invention belongs to the field of PVC heat stabilizers and relates to a ternary nano rare earth complex compound heat stabilizer. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics, but it has poor thermal stability and is easy to decompose, so a heat stabilizer must be added during processing. There are various types of heat stabilizers for PVC. Currently, the commonly used varieties include lead salts, calcium-zinc soaps, organic tin, rare earths, composite stabilizers, etc., and each stabilizer has its own characteristics. Calcium zinc heat stabilizer is composed of calcium salt, zinc salt, lubricant, antioxidant, etc. as the main components through a special composite process. It is a good non-toxic stabilizer, and it can be divided into powder calcium zinc stabilizer Agent and liquid calcium-zinc stabilizer, powder calcium-zinc stabilizer is easy to prepare, easy to pack and transport, and widel...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L91/00C08K13/02C08K5/09C08K5/098C08K3/28C08K5/07C08K5/524C08K5/053
Inventor 李军伟张宝行王佳欣李哲辉
Owner TIANJIN CHENGJIAN UNIV
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