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Efficient non-toxic rare earth calcium-zinc stabilizer and production method thereof

A technology of zinc stabilizer and rare earth calcium, which is applied in the field of rare earth calcium zinc stabilizer, can solve the problems of unsatisfactory factory production, single stabilizer composition, and low thermal stability efficiency, so as to delay the aging process of finished products, reduce the catalytic reaction speed, Improve the effect of stabilization

Active Publication Date: 2013-08-21
CHONGQING BAOHUA CHEM ADDITIVE PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stabilizer has relatively simple components, simple functions, and low thermal stabilization efficiency, which cannot meet the actual needs of factory production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] Example 1: a kind of high-efficiency nontoxic rare earth calcium-zinc stabilizer comprises the following components by weight: lanthanum citrate 10kg, its weight percentage is La 2 o 3 Calcium stearate 36kg; calcium content in the calcium stearate is 6.0%-7.0%, free acid content is ≤0.5% in terms of stearic acid, moisture content≤2 %; Zinc stearate 8kg; Zinc content is 10.5%-11.5% in the described zinc stearate, free acid content≤0.5% in terms of stearic acid, moisture content≤1.0%; Epoxidized soybean oil 11kg; The epoxy value of epoxidized soybean oil ≥ 6.0, iodine value ≤ 6.0, thermal stability < 177 ℃, epoxy value ≥ 5.0% after 3h; layered double hydroxyl composite metal oxide (LDH) 28kg; the layered double Hydroxyl composite metal oxide (LDH) has a pH value of 8-9, a fineness of 0.4-0.6μm, a heavy metal content of ≤10ppm, an aluminum-magnesium ratio of 3.5:9, and a specific surface area of ​​15m / g. Hydrotalcite; Stearoylbenzoylmethane 3kg, stearoylbenzoylmethane we...

example 2

[0036] Example 2: a kind of high-efficiency nontoxic rare earth calcium-zinc stabilizer comprises the following components by weight: lanthanum citrate 15kg, its weight percentage is La 2 o 3 Calcium stearate 33kg; calcium content in the calcium stearate is 6.0%-7.0%, free acid content is ≤0.5% in terms of stearic acid, moisture content≤2 %; Zinc stearate 13kg; Zinc content is 10.5%-11.5% in the described zinc stearate, free acid content≤0.5% in terms of stearic acid, moisture content≤1.0%; Epoxidized soybean oil 7kg; The epoxy value of epoxidized soybean oil is more than or equal to 6.0, the iodine value is less than or equal to 6.0, and the thermal stability is less than or equal to 177 ℃, and the epoxy value is more than or equal to 5.0% after 3 hours; Layered double hydroxyl compound metal oxide (LDH) 31kg; The layered double Hydroxyl composite metal oxide (LDH) has a pH value of 8-9, a fineness of 0.4-0.6μm, a heavy metal content of ≤10ppm, an aluminum-magnesium ratio of...

example 3

[0040] Example 3: a kind of high-efficiency nontoxic rare earth calcium-zinc stabilizer comprises the following components by weight: lanthanum citrate 12kg, its weight percentage is La 2 o 3 Calcium stearate 35kg; calcium content in the calcium stearate is 6.0%-7.0%, free acid content is ≤0.5% in terms of stearic acid, moisture content≤2 %; Zinc stearate 10kg; Zinc content is 10.5%-11.5% in the described zinc stearate, and free acid content is ≤0.5% in terms of stearic acid, moisture content≤1.0%; Epoxidized soybean oil 10kg; The epoxy value of epoxidized soybean oil ≥ 6.0, iodine value ≤ 6.0, thermal stability < 177 ℃, epoxy value ≥ 5.0% after 3h; layered double hydroxyl composite metal oxide (LDH) 28kg; the layered double Hydroxyl composite metal oxide (LDH) has a pH value of 8-9, a fineness of 0.4-0.6μm, a heavy metal content of ≤10ppm, an aluminum-magnesium ratio of 3.5:9, and a specific surface area of ​​15m / g. Hydrotalcite; stearoylbenzoylmethane 5kg, stearoylbenzoylm...

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Abstract

The invention discloses an efficient non-toxic rare earth calcium-zinc stabilizer which comprises the following components in parts by weight: 10-15 parts of lanthanum citrate, 33-36 parts of calcium stearate, 8-13 parts of zinc stearate, 7-11 parts of epoxidized soybean oil, 28-31 parts of layered bihydroxy composite metal oxide (LDH) and 3-7 parts of stearoyl benzoyl methane. The production method comprises the following steps: A, sequentially adding and adequately stirring lanthanum citrate, calcium stearate, zinc stearate, epoxidized soybean oil, layered bihydroxy composite metal oxide (LDH) and stearoyl benzoyl methane; B, weighing the epoxidized soybean oil and uniformly spraying the epoxidized soybean oil into a solid powder mixture being stirred; and C, after spraying the epoxidized soybean oil, further stirring for 5-10 minutes. The stabilizer does not contain heavy metals such as lead, and is non-toxic and harmful, very environment-friendly, lower in cost and good in stability, mobility and compatibility.

Description

technical field [0001] The invention relates to a chemical auxiliary agent, in particular to a high-efficiency and non-toxic rare earth calcium-zinc stabilizer, and also relates to a production method thereof. Background technique [0002] As a commonly used auxiliary agent in PVC and other processing processes, stabilizers are widely used due to their unique chemical functions. Most of the existing stabilizers are lead salt stabilizers, composite lead salt stabilizers, calcium-zinc composite heat stabilizers, organotin heat stabilizers, etc. Lead salt stabilizers and composite lead salt stabilizers are more harmful to the human body and the environment because they contain a large amount of heavy metals. The thermal stability of calcium zinc stabilizer is not high, the addition amount is relatively large, and the cost is relatively high. Organotin stabilizers have a strong pungent smell, are harmful to the human body and pollute the environment. [0003] The patent No. 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/098C08K5/1515C08K3/22C08K3/26C08K5/07
Inventor 何功孝姜龙梅何键
Owner CHONGQING BAOHUA CHEM ADDITIVE PLANT
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