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PVC environment-friendly nanometer heat stabilizer and preparation method thereof

A heat stabilizer and nano technology, applied in the field of PVC environmental protection nano heat stabilizer and its preparation, can solve the problems of precipitation, affecting the processing process and product quality, etc., and achieve the effect of large adsorption capacity, good stabilization effect and good mutual solubility.

Active Publication Date: 2016-03-02
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the deficiencies of existing polyvinyl chloride heat stabilizers, and provide a hollow titanium dioxide nano-microsphere heat stabilizer and a preparation method thereof, which effectively solves the problem of polyhydroxy When the amount of compound is slightly larger, it is easy to precipitate during PVC processing, which affects the processing and product quality.

Method used

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  • PVC environment-friendly nanometer heat stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh the following components:

[0023] Calcium stearate 320g;

[0024] Zinc stearate 280g;

[0025] Hydrotalcite 100g;

[0026] Hollow titanium dioxide nanosphere particle size 30nm80g (8%);

[0027] Paraffin 80g;

[0028] Dipentaerythritol ester 50g;

[0029] Dibenzoylmethane 90g.

[0030] First add calcium stearate, zinc stearate and hydrotalcite into the reaction kettle and mix thoroughly, take the mixed material, add it to the kneader and stir, add the surface modifier, knead at 95°C for 30min, and then add it to the kneader Lubricant, hollow titanium dioxide nano-microspheres and auxiliary heat stabilizer are kneaded and stirred at 95°C for 40 minutes, discharged into tablets, sieved, and packaged to obtain the final product.

[0031] Implementation 2 / 3 / 4 / 5

[0032] Others are the same as in Example 1, and the particle diameters of the hollow titanium dioxide nanospheres are 20nm / 25nm / 40nm / 50nm respectively.

Embodiment 6

[0034] Weigh the following components:

[0035] Calcium stearate 350g;

[0036] Zinc stearate 300g;

[0037] Hydrotalcite 150g;

[0038] Hollow titanium dioxide nanosphere particle size 30nm50g;

[0039] Polyethylene wax 60g;

[0040] Triphenyl phosphite 30g;

[0041] Epoxidized soybean oil 60g.

[0042] First add calcium stearate, zinc stearate and hydrotalcite into the reaction kettle and mix thoroughly, take the mixed material, add it to the kneader and stir, add the surface modifier, knead at 103°C for 30min, and then add it to the kneader Lubricant, hollow titanium dioxide nano-microspheres and auxiliary heat stabilizer are kneaded and stirred at 103°C for 40 minutes, discharged into tablets, sieved, and packaged to obtain the final product.

Embodiment 7

[0044] Weigh the following components:

[0045] Calcium stearate 200g;

[0046] Zinc stearate 260g;

[0047] Hydrotalcite 100g;

[0048] Hollow titanium dioxide nanosphere particle size 20nm100g (10%);

[0049] Paraffin 120g;

[0050] Triphenyl phosphite 70g;

[0051] Dibenzoylmethane 150g,

[0052] First add calcium stearate, zinc stearate and hydrotalcite into the reaction kettle and mix thoroughly, take the mixed material, add it to the kneader and stir, add the surface modifier, knead at 98°C for 30min, and then add it to the kneader Lubricant, hollow titanium dioxide nano-microspheres and auxiliary heat stabilizer are kneaded and stirred at 98°C for 40 minutes, discharged into tablets, sieved, and packaged to obtain the final product.

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Abstract

The invention relates to a polyvinyl chloride heat stabilizer, in particular to a PVC environment-friendly nanometer heat stabilizer and a preparation method thereof. The heat stabilizer is prepared from, by mass, 20-35% of calcium stearate, 15-30% of zinc stearate, 10-15% of hydrotalcite, 5-10% of hollow titanium dioxide nanometer microspheres, 6-12% of lubricant, 3-7% of surface modification agent and 5-15% of auxiliary heat stabilizer. The adopted hollow titanium dioxide nanometer microspheres and organic solvent are good in intersolubility; when used as a stabilizer for polyvinyl chloride plastics processing, the PVC environment-friendly nanometer heat stabilizer has the advantages of being not prone to precipitation and high in stabilizing effect; HC1 can be effectively enriched, and the effect of the stabilizer is remarkably improved.

Description

technical field [0001] The invention relates to a heat stabilizer for polyvinyl chloride, in particular to a PVC environment-friendly nano heat stabilizer and a preparation method thereof. Background technique [0002] Polyvinyl chloride is one of the five general-purpose resins. Because of its excellent comprehensive performance, it is widely used in various fields such as industrial construction, agriculture, daily necessities, and public utilities. The current output is second only to polyethylene, ranking second in plastics; Polyvinyl chloride has poor thermal stability during processing, and heat stabilizers must be added. Commonly used heat stabilizers include lead salts, organic tins, rare earths, and metal soaps. [0003] With the improvement of people's awareness of environmental protection, especially the EU RoHS and WEEE directives and the United States, Japan, and South Korea have also issued relevant regulations, the world environmental protection organization h...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L91/06C08L23/06C08L91/00C08K13/04C08K7/24C08K5/098C08K3/26
CPCC08K3/26C08K5/098C08K7/24C08K13/04C08K2201/003C08K2201/011C08K2201/014C08L23/06C08L27/06C08L91/00C08L2201/08C08L2205/03C08L91/06
Inventor 银强张龙易嘉星程煜张元良杜欣瑶谢苗苗川宁陶宇
Owner CHANGZHOU UNIV
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