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Composite stabilizer and preparation method thereof

A technology of composite stabilizer and antioxidant, applied in the field of composite stabilizer and its preparation, can solve the problems of unsatisfactory effect and low stabilization effect, achieve good static thermal stability, improve thermal stability, excellent stability and The effect of color retention

Inactive Publication Date: 2016-08-17
SHANDONG CHUANJUN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its stabilizing effect is low, and the effect is still unsatisfactory when compounded with various auxiliary stabilizers such as polyols, β-diketones, epoxy compounds, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Composed of the raw materials of the following weight fractions, the total amount of each raw material is 100%:

[0024] 20% rare earth (cerium), 40% stearate (zinc stearate), 20% chlorinated paraffin 70, 10% anti-aging agent DNP and 10% antioxidant 264.

[0025] The preparation method is as follows: adding each raw material into a blender, stirring for 70 minutes, mixing evenly, and packing to obtain the product.

[0026] Performance test: Add 5 parts of the composite stabilizer prepared in Example 1 to 100 parts of PVC resin and 80 parts of plasticizer, the plasticizing temperature is 160 ± 1 °C, the whiteness is 87; the thermal stability time is 210min, indicating that the Composite stabilizer has excellent heat stabilizing effect.

Embodiment 2

[0030] Composed of the raw materials of the following weight fractions, the total amount of each raw material is 100%:

[0031] 35% rare earth (lanthanum), 35% stearate (calcium stearate), 15% chlorinated paraffin 70, 8% anti-aging agent DNP and 7% antioxidant 264.

[0032] The preparation method is as follows: adding each raw material into a blender, stirring for 50 minutes, mixing evenly, and then packaging to obtain the product.

[0033] Performance test: Add 3 parts of the composite stabilizer prepared in Example 2 to 100 parts of PVC resin and 80 parts of plasticizer, the plasticizing temperature is 160±1°C, the whiteness is 84; the thermal stability time is 190min, indicating that the composite stabilizer The stabilizer has excellent heat stabilization effect.

Embodiment 3

[0037] Composed of the raw materials of the following weight fractions, the total amount of each raw material is 100%:

[0038] 40% rare earth (praseodymium), 30% stearate (zinc stearate), 20% chlorinated paraffin 70, 5% anti-aging agent DNP and 5% antioxidant 264.

[0039] The preparation method is as follows: adding each raw material into a blender, stirring for 60 minutes, mixing evenly, and packing to obtain the product.

[0040] Performance test: Add 5 parts of the composite stabilizer prepared in Example 1 to 100 parts of LDPE resin and 80 parts of plasticizer, the plasticizing temperature is 160 ± 1 ° C, the whiteness is 85; the thermal stability time is 210 minutes, indicating that the Composite stabilizer has excellent heat stabilizing effect.

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PUM

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Abstract

The invention belongs to the field of a stabilizer, and particularly relates to a compound stabilizer. The compound stabilizer is prepared from the following raw materials by weight: the gross of the raw materials being 100%, 20-40% of rare earth, 20-40% of stearate, 10-20% of chlorinated paraffin, 5-10% of anti-aging agent, and 5-10% of antioxidant, wherein the rare earth is one or more of lanthanum, cerium, praseodymium, neodymium or promethium. The compound stabilizer is simple and reasonable in component, available in raw material, low in price, free of pollution, and less in dosage, and has a good composite stable effect. The invention also provides a preparation method. The raw materials are added to an agitator, agitated for 50-70 minutes, evenly mixed, and subpackaged to form the product. Thus, the process is reasonable.

Description

technical field [0001] The invention belongs to the field of stabilizers, and in particular relates to a composite stabilizer and a preparation method thereof. Background technique [0002] Rubber and plastic materials are widely used, but their thermal stability is very poor, and the general processing temperature is higher than the decomposition temperature, so heat stabilizers need to be added during processing. Most of the heat stabilizers widely used in industry are metal salts such as lead, cadmium, barium, tin, etc., which are highly toxic and harmful to human health. With the increasing awareness of environmental protection around the world, the regulations related to environmental protection are becoming increasingly strict. Under this situation, the development of non-toxic heat stabilizers has been strongly promoted. Traditional non-toxic composite stabilizers are mainly calcium stearate and zinc stearate composite stabilizers. However, its stabilizing effect is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/02C08K3/08C08K5/098C08K5/02C08K5/18C08K5/13C08L27/06C08L23/06
Inventor 杨金晓杨忠军
Owner SHANDONG CHUANJUN CHEM