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Method of preparing polyvinylchloride composite processing auxiliary agent

A compound processing aid and technology of polyvinyl chloride, which is applied in the field of preparation of polyvinyl chloride compound processing aids, can solve problems such as low comprehensive cost performance advantages and difficulties in marketing, and achieve easy realization, improved thermal stability efficiency, and easy operation simple effect

Inactive Publication Date: 2009-03-18
YIXING SANLIAN CHEM FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Rare earth series heat stabilizers are unique stabilizers in my country, and the comprehensive cost-effective advantages are not outstanding, and it is difficult to promote them in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 200 kilograms of soybean oleic acid, slowly heating up under uniform stirring. When temperature rises to 55 DEG C, stop heating, add 40 kilograms of glacial acetic acid (accounting for 20% of soybean oleic acid weight), and start dripping concentration and be 100 kilograms of hydrogen peroxide of 27% (convert to 100% hydrogen peroxide calculation, account for soybean oleic acid weight) 13%), control the rate of addition, about 1h dropwise, continue to stir the reaction for 3h, the reaction temperature does not exceed 65 ° C. The generated epoxidized soybean oleic acid was washed with water until neutral, and dehydrated under vacuum. Heat to 80°C, then add 15 kg of calcium hydroxide (the molar ratio to soybean oleic acid is 1:0.57), 26 kg of zinc oxide (the molar ratio to soybean oleic acid is 1:0.9), ethylene bis-stearin 10 kg of amide (accounting for 5% of the weight of epoxidized soybean oleic acid), the temperature was raised to 110° C. under stirring, and the react...

Embodiment 2

[0026] 200 kg of palmitoleic acid, slowly heating up under constant stirring. When temperature rises to 45 DEG C, stop heating, add 10 kilograms of glacial acetic acid (accounting for 10% of palmitoleic acid weight), and begin to drip 100 kilograms of 50% hydrogen peroxide (convert to 100% hydrogen peroxide calculation, account for palmitoleic acid weight 100 kilograms) 25%), control the rate of addition, about 1h dropwise, continue to stir the reaction 11h, the reaction temperature does not exceed 65 ℃. The generated epoxy palmitoleic acid was washed with water until neutral, and dehydrated under vacuum. Heat to 90°C, add 15 kg of calcium oxide (1:0.57 molar ratio to palmitoleic acid), 10 kg zinc oxide (1:0.35 molar ratio to palmitoleic acid), 4 kg magnesium hydroxide (1:0.35 molar ratio to palmitoleic acid) The molar ratio of palmitoleic acid is 1:0.29), 4 kg of ethylene bisstearamide (accounting for 2% of the weight of epoxy palmitoleic acid), the temperature is raised to ...

Embodiment 3

[0028] 200 kilograms of linoleic acid are slowly heated up under constant stirring. When temperature rises to 40 DEG C, stop heating, add 30 kilograms of formic acid (accounting for 15% of linoleic acid weight), and begin to drip 150 kilograms of 30% hydrogen peroxide (convert to 100% hydrogen peroxide calculation, account for 22.5% of linoleic acid weight) ), control the rate of addition, about 1h dropwise, continue to stir the reaction for 8h, the reaction temperature does not exceed 65 ℃. The resultant was washed with water until neutral, and dehydrated under vacuum. Be heated to 90 DEG C, add now 10 kilograms of calcium oxides, 15 kilograms of zinc oxides, 4 kilograms of magnesium oxides, 20 kilograms of ethylene bis stearamides (accounting for 10% of epoxy linoleic acid weight), be warming up to 110 DEG C under stirring , Stir the reaction for 3h. Evenly dispersed and sliced, it is a non-toxic polyvinyl chloride compound processing aid. Tested according to the national...

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PUM

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Abstract

The invention discloses a preparing method of polyvinyl chloride composite processing aids, which comprises the following steps: choosing unsaturated fatty acid as raw material; reacting with hydrogen dioxide solution with acid catalysis under 40-80 deg.c; adding into 2-10% ethylene octadecanamide; stirring; reacting with nontoxic metallic element oxide or hydroxide composition under 70-110 deg.c at 1-3 h; cooling; getting end product; testing with national standard / GB8815-88. The thermo stable time is higher than 110 min.

Description

technical field [0001] The invention relates to a processing method of chemical raw materials, in particular to a preparation method of a polyvinyl chloride compound processing aid. Background technique [0002] Polyvinyl chloride is one of the polymer materials with a wide range of uses. The annual output in my country exceeds 4 million tons, and it is widely used in chemical building materials, cables, agricultural films, toys and other fields. [0003] Polyvinyl chloride has poor thermal stability during processing, and processing aids such as heat stabilizers and lubricants must be added during the molding process of polyvinyl chloride. At present, heat stabilizers for PVC processing mainly include lead salt stabilizers, organotin heat stabilizers, metal soap heat stabilizers, composite stabilizers, organic stabilizers, and rare earth heat stabilizers. [0004] Lead salt stabilizer is the general term for basic inorganic acid lead and organic acid lead (except lead stea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K11/00
Inventor 许卫星
Owner YIXING SANLIAN CHEM FACTORY
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