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Polymer calcium zinc complex soap heat stabilizer, preparation method thereof and application thereof

A calcium-zinc composite and thermal stabilizer technology, which is applied in the field of polymer material processing and application, can solve problems such as the gap in thermal stability function, and achieve the effects of improving safety performance, increasing thermal deformation temperature, and long-term functionality.

Inactive Publication Date: 2012-07-25
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with heat stabilizers such as lead, the current calcium-zinc stabilizers still have a certain gap in their thermal stability.

Method used

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  • Polymer calcium zinc complex soap heat stabilizer, preparation method thereof and application thereof
  • Polymer calcium zinc complex soap heat stabilizer, preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] First prepare polymer calcium-zinc composite soap, and its preparation method is:

[0031] A. Add 2.5g potassium persulfate to 500mL distilled water and raise the temperature to 50°C;

[0032] B. Mix 50g of α-methacrylic acid and 0.01%-0.05% of the mass of α-methacrylic acid in tertiary mercaptan or dodecanethiol, and slowly add it dropwise to the aqueous solution obtained in step A while stirring, while controlling the temperature of the system At 40°C-90°C; after the end of the polymerization reaction, slowly add the mixture of zinc hydroxide and calcium hydroxide according to stoichiometry under stirring, wherein the mass ratio of calcium hydroxide to zinc hydroxide is 2:3, and the amount added makes the hydroxide The root completely neutralizes the carboxylic acid group shall prevail;

[0033] C. After the reaction is complete, the precipitate is filtered, dried, and pulverized to obtain the polymer calcium-zinc composite soap;

[0034]Then, in the PVC of 100 part...

Embodiment 2

[0036] Prepare polymer calcium-zinc composite soap according to the method of embodiment 1, difference is: in step A, add the hydrogen peroxide 5g of 30% mass fraction to replace potassium persulfate, dropwise add acrylic acid, maleic acid and β-methyl in step B Acrylic composition, and the mass ratio of calcium hydroxide to zinc hydroxide is 1:1.

[0037] Add 10 parts of dibutyl phthalate (DBP), 5 parts of the polymer calcium-zinc composite soap prepared above (wherein the mass ratio of calcium to zinc is 1:1), 3 parts of pentaerythritol, 0.5 parts in 100 parts by mass of PVC. Part of antioxidant tris(2,4-di-tert-butylphenyl) phosphite, 0.2 part of stearic acid, uniformly mixed; sample preparation and measurement according to Example 1, its Congo red time was 92 minutes.

Embodiment 3

[0039] Polymer calcium-zinc composite soap was synthesized according to the method of Example 1, wherein the calcium-zinc mass ratio was 3:2.

[0040] Add 10 parts of dibutyl phthalate (DBP), 5 parts of polymer calcium-zinc composite soap (wherein the mass ratio of calcium to zinc is 3:2), 3 parts of methacrylic acid to 100 parts by mass of PVC Pentaerythritol monoester, 0.5 part of antioxidant 2, 2'-methylene bis(4-methyl-6-tert-butylphenol), 0.2 part of stearic acid, uniformly mixed; sample preparation and measurement according to Example 1, Its Congo red time is 82 minutes.

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Abstract

The invention discloses a polymer calcium zinc complex soap heat stabilizer, which comprises the following compositions in parts by weight: 2 to 5 parts of polymer calcium zinc complex soap, 3 parts of polyol and / or polyhydric alcohol monoester, 0 to 3 parts of stearic acid soap and / or oleic soap, 0 to 1 part of epoxy compound, 0 to 0.5 parts of antioxidant and / or anti-aging agent, and 0 to 0.2 parts of fatty acid and / or lubricant. The materials are uniformly mixed and ground into a powder body at a room temperature, i.e. a finished polymer calcium zinc complex soap heat stabilizer product is obtained; and the finished polymer calcium zinc complex soap heat stabilizer product can be applied to the preparation of a chlorine-containing polymer, and can be preferably applied to the preparation of polyvinyl chloride, chlorinated polyethylene, vinylidene chloride and ACS (Acrylonitrile Chlorinated polyethylene Styrene) plastic. The polymer calcium zinc complex soap heat stabilizer provided by the invention overcomes the defects of the prior art, is safe and non-toxic, and has an excellent heat stabilizing effect.

Description

technical field [0001] The invention relates to the technical field of polymer material processing and application. Background technique [0002] Polyvinyl chloride (hereinafter referred to as PVC) is one of the four general-purpose plastics and is widely used in industry, construction, military and civilian products. In recent decades, with the further widespread application of plastic products, the amount of other chlorine-containing polymers, such as chlorinated polyethylene, new engineering plastics ACS, and chloroprene polymers, has also increased rapidly. The biggest problem in the processing of chlorine-containing polymers is poor thermal stability, easy to change color, decompose, and coke during processing, so the production, development and research of polymers, especially heat stabilizers for chlorine-containing polymer processing, is one of the key issues in polymer processing . Traditional chlorine-containing polymer heat stabilizers are lead salt heat stabili...

Claims

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Application Information

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IPC IPC(8): C08L33/02C08K5/00C08K5/12C08K5/053C08K5/526C08K5/103C08K5/06C08L27/06C08L23/28C08L51/00C08F120/06C08F220/06
Inventor 高俊刚杜永刚刘孝谦杨建波
Owner HEBEI UNIVERSITY
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