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Calcium-zinc composite stabilizer and preparation method thereof

A calcium-zinc composite and stabilizer technology, applied in the field of thermal stabilizer preparation, can solve the problems of producing toxic waste water, waste gas, impact on human health, and high production costs, and achieve the effects of no three wastes, significant social benefits, and low production costs.

Active Publication Date: 2014-07-30
JIANGSU LIANMENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of heat stabilizer is characterized by high stability, good transparency, and excellent heat resistance, but the disadvantage is that it is more expensive
[0008] Composite heat stabilizers are a development trend due to their excellent performance and good environmental protection performance. However, the existing composite heat stabilizers (such as lead salt composite stabilizers and organic tin stabilizers) have high production costs and contain certain Toxicity, toxic wastewater and waste gas will be produced during the production process, which will pollute the environment and affect human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] 1. Reaction synthesis process of basic calcium zinc phosphite

[0034] Add water into the reaction kettle, raise the temperature to 80°C, add phosphorous acid, calcium hydroxide, zinc oxide (the molar ratio of acid to alkali is 1:2.05), after the reaction is completed, filter through plate and frame, dry, and press filter Water can be recycled and reused;

[0035] 2. Surface treatment process

[0036] Add 20% of basic calcium zinc phosphite, 30% of hydrotalcite, 5% of calcium zinc silicate, and 5% of metal hydroxide into the reaction kettle, raise the temperature to 100°C, add 3% of silane according to the surface area calculation, and carry out packaging Cover, complete the preparation of the main stabilizer;

[0037] 3. Composite process

[0038] Add 10% DBM, 10% fatty acid esters, 20% hydrocarbon external lubricants, and 10% antioxidants to the reactor of the main stabilizer, and heat up to 160°C to form a melt;

[0039] 4. Chipping and crushing process

[0040]...

example 2

[0042] 1. Reaction synthesis process of basic calcium zinc phosphite

[0043] Add water into the reaction kettle, raise the temperature to 85°C, add phosphorous acid, calcium hydroxide, and zinc oxide (the molar ratio of acid to alkali is 1:2.05), and after the reaction is completed, filter through plate and frame, dry, and press filter Water can be recycled and reused;

[0044] 2. Surface treatment process

[0045] Add 40% of basic calcium zinc phosphite, 10% of hydrotalcite, and 5% of metal hydroxide into the reaction kettle, raise the temperature to 90°C, add 1% of silane and 1% of titanate according to the surface area calculation, and carry out the coating process. Cover, complete the preparation of the main stabilizer;

[0046] 3. Composite process

[0047] Add 10% of DBM, 10% of SBM, 10% of fatty acid esters, and 15% of hydrocarbon external lubricants to the reaction kettle of the main stabilizer, and heat up to 180°C to form a melt;

[0048] 4. Chipping and crushin...

example 3

[0051] 1. Reaction synthesis process of basic calcium zinc phosphite

[0052] Add water into the reaction kettle, raise the temperature to 80°C, add phosphorous acid, calcium hydroxide, zinc oxide (the molar ratio of acid to alkali is 1:2.05), after the reaction is completed, filter through plate and frame, dry, and press filter Water can be recycled and reused;

[0053] 2. Surface treatment process

[0054] Add 25% of basic calcium zinc phosphite, 10% of hydrotalcite, and 20% of metal hydroxide into the reaction kettle, raise the temperature to 100°C, and add 1% of silane, 1% of titanate, 1 % of aluminate is coated to complete the preparation of the main stabilizer;

[0055] 3. Composite process

[0056] Add 10% of SBM, 10% of fatty acid esters, and 15% of hydrocarbon external lubricants to the reaction kettle of the main stabilizer, and heat up to 180°C to form a melt;

[0057] 4. Chipping and crushing process

[0058] The molten body is formed into pieces on the finish...

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Abstract

The invention relates to a calcium-zinc composite stabilizer and a preparation method thereof. The calcium-zinc composite stabilizer consists of the following raw materials in percentage by weight: 20%-60% of alkaline calcium-zinc phosphite, 5%-30% of calcium-zinc silicate, 10%-50% of hydrotalcite or hydrotalcite-like compounds, 5%-30% of metal hydroxide, 1%-3% of a surfactant, 5%-30% of an auxiliary stabilizer, and 5%-30% of a lubricant. The calcium-zinc composite stabilizer and the preparation method thereof have the characteristics that the stability is good, the resistance to vulcanization pollution is achieved, the use amount is low, the heat stability of the calcium-zinc composite stabilizer is superior to that of the traditional lead-salt composite stabilizer, the weather resistance is good, the mold cleaning period is long, and the physical properties of products are excellent; waste water, waste gas and waste residues are not generated in production; no dust is generated in use of the stabilizer; the production cost is low; the raw materials are easily available; the calcium-zinc composite stabilizer can widely substitute for the traditional lead-salt composite stabilizer and an organic tin stabilizer; the economic, social and environmental benefits are remarkable.

Description

technical field [0001] The invention relates to the field of heat stabilizer preparation, in particular to a calcium-zinc composite stabilizer and a preparation method thereof. Background technique [0002] Heat stabilizers are a class of additives that can prevent or reduce the degradation or crosslinking of polymers due to heat during processing and use, and prolong the service life of composite materials. Commonly used stabilizers can be classified into bases, fatty acid soaps, organotin compounds, compound heat stabilizers and pure organic compounds according to their main components. [0003] 1) Salt-based heat stabilizers: Salt-based stabilizers refer to lead salts of inorganic and organic acids combined with "basic bases". This type of stabilizer has excellent heat resistance, weather resistance and electrical insulation, and is low in cost. , poor transparency, certain toxicity, the dosage is generally 0.5%-5.0%. [0004] 2) Fatty acid heat stabilizer: This type of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K13/06C08K9/04C08K3/32C08K3/34C08K3/26C08K3/22
Inventor 王京胜周腊芳严德道周明华
Owner JIANGSU LIANMENG CHEM
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