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Composite heat stabilizer and preparation method

A compound heat stabilizer and heat stabilizer technology, which is applied in the field of compound heat stabilizer and preparation, to prepare compound heat stabilizer for PVC materials, can solve problems such as unsatisfactory effect, not in line with the national conditions of production, and performance needs to be improved. Achieve the effect of anti-ultraviolet ability, excellent color protection ability, and reduce emulsification process time

Inactive Publication Date: 2012-03-28
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price is expensive and the cost is high, which does not meet the current production conditions of our country, making its development in a restricted state
Rare earth heat stabilizer, the effect of using alone is not very ideal, and the performance needs to be improved, but it can achieve high efficiency when combined with other heat stabilizers

Method used

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  • Composite heat stabilizer and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Add 8kg of stearic acid and 20kg of deionized water into the reactor with grinder, heat and stir, when the temperature reaches 65-85℃, stir for 15-30min, add 5L rare earth nitrate with a molar concentration of 2mol / L After stirring uniformly, add 50L of ammonia solution with a molar concentration of 0.6mol / L within 50min, continue to stir, keep at constant temperature for 45min, filter while hot, dehydrate and dry to make rare earth stearate.

[0026] 2. Dissolve 10kg of stearic acid in 20kg of water, heat to 75°C, add 1kg of zinc sulfate, add 15L of 2mol / L calcium hydroxide, stir at constant temperature for 25min, then dehydrate, dry, and grind to make zinc stearate.

[0027] 3. Take 10kg of rare earth stearate, 3kg of zinc stearate, and 1.5kg of PE wax into a centrifugal device for dehydration, then transfer to the reaction vessel, equipped with a reflux device, add 8kg of mineral oil, 0.5kg of β-diketone, and heat to 85 ℃, keep constant temperature for 30min, add 0.2kg...

Embodiment 2

[0029] 1. Add 4kg of cyanuric acid and 10kg of deionized water into a reactor equipped with a grinder, heat and stir, when the temperature reaches 65-85℃, stir for 15-30min, add 4.5L rare earth nitrate with a molar concentration of 2mol / L After stirring uniformly, add 30L of ammonia aqueous solution with a molar concentration of 0.8mol / L within 30min, continue to stir, keep at a constant temperature for 45min, filter while hot, dehydrate and dry to make rare earth hydrouric acid.

[0030] 2. Dissolve 8kg stearic acid in 16kg water, heat up to 75℃, add 0.8kg zinc sulfate, slowly add 13L 2mol / L calcium hydroxide, stir at constant temperature for 25min, then dehydrate, dry, and grind to make stearin Zinc acid.

[0031] 3. Take 9kg of rare earth hydrouric acid, 3kg of zinc stearate, and 1.3kg of PE wax into the centrifuge device for dehydration, then transfer to the reaction vessel, equipped with a reflux device, add 8kg of mineral oil, 0.4kg of β-diketone, and heat to 85 ℃, keep cons...

Embodiment 3

[0033] 1. Add 10kg of stearic acid and 24kg of deionized water into a reactor with a grinder, heat and stir, when the temperature reaches 65-85℃, stir for 15-30min, add 6.5L rare earth nitrate with a molar concentration of 2mol / L After stirring uniformly, add 30L of ammonia aqueous solution with a molar concentration of 1.2mol / L within 30min, keep stirring, after 45min at a constant temperature, filter while hot, dehydrate and dry to prepare rare earth stearate.

[0034] 2. Dissolve 12kg of stearic acid in 24kg of water, heat up to 75℃, add 1.1kg of zinc sulfate, slowly add 17L of 2mol / L calcium hydroxide, stir at constant temperature for 25min, then dehydrate, dry, and grind to make stearin Zinc acid.

[0035] 3. Take 1.2 kg of rare earth stearate, 3.3 kg of zinc stearate, and 1.7 kg of PE wax into a centrifugal device for dehydration, and then move it into the reaction vessel. After equipped with a reflux device, add 8 kg of mineral oil and 0.6 kg of β-diketone. Raise the temper...

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Abstract

The invention relates to a composite heat stabilizer and a preparation method, belonging to the field of chemical agents. The composite heat stabilizer comprises a heat stabilizer, zinc stearate, hexadecanol, beta-diketone, PE (Polyethylene) wax, a composite oxidation inhibitor, phosphorous ester and mineral oil; and the reasonable chemical synthesis and the complex formulation are carried on the heat stabilizer, the zinc stearate, the hexadecanol, the beta-diketone, the PE (Polyethylene) wax, the composite oxidation inhibitor, the phosphorous ester and the mineral oil to obtain a finished product. The stabilizer relates to a mixture of disulphide group acetic acid iso-octyl dimethyl tin and organic acid rare earth; according to the preparation method, all the components are dissolved and compounded in thermal state to prepare the composite heat stabilizer, thereby reducing the dust pollution, simplifying a process formulation when PVC (Polyvinyl Chloride) is used for processing products and increasing the transparency, the antioxidant property, the anti-ultraviolet radioactivity of the products; the composite heat stabilizer is non-toxic and reduces the cost; and the composite heat stabilizer is suitable for the processing of the PVC (Polyvinyl Chloride) products such as flexible plastics, water supplying tubular products, plastic injection parts and the like, solves the problems of poor initial dyeing property, poor plasticizing effect, weak impact resistance at low temperature, weather resistance and the like of the traditional single stabilizer and increases the thermal stability of the PVC (Polyvinyl Chloride) products.

Description

Technical field [0001] The invention relates to a composite heat stabilizer and a preparation method, in particular to a composite heat stabilizer for preparing PVC materials, and belongs to the field of chemical preparations. Background technique [0002] Heat stabilizers are currently mainly divided into five categories: lead, metal soap, organotin, rare earth, and organic antimony, and organic auxiliary agents. Lead salt stabilizers are toxic and cause a series of environmental problems. Therefore, lead salt composite heat stabilizers were born in accordance with the trend. Although the use of lead salts has been reduced, there are still toxic effects. The elimination of cadmium and lead heat stabilizers has been The inevitability of history. Metal soap heat stabilizers have limited effect and performance. The organotin heat stabilizer has high performance and low pollution hazard, and it is time to accelerate the development. However, the price is high and the cost is high...

Claims

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Application Information

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IPC IPC(8): C08K5/00C08K5/098C08K5/58C08K5/524C08K5/07C08K5/13C08K5/3492C08L27/06
Inventor 李梅柳召刚王觅堂胡艳宏姜在勇王海鸥
Owner INNER MONGOLIA UNIV OF SCI & TECH
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