Castor oil-based calcium-zinc composite heat stabilizers and preparation method thereof

A composite heat stabilizer and castor oil-based technology, which is applied in the field of preparation of the stabilizer, can solve the problems of complex process, poor stabilization effect, and heavy metals in the heat stabilizer, and achieve good thermal stability and simple preparation process Effect

Inactive Publication Date: 2014-12-03
蒋平平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the existing defects, and provide an environmentally friendly, non-toxic and efficient castor oil-based calcium-zinc composite heat stabilizer and its preparation method, which is used to overcome the existing heat stabilizer containing heavy metals and complicated process , The sources of acid in the raw materials are mostly petroleum-based and the stabilization effect is not good.

Method used

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  • Castor oil-based calcium-zinc composite heat stabilizers and preparation method thereof
  • Castor oil-based calcium-zinc composite heat stabilizers and preparation method thereof
  • Castor oil-based calcium-zinc composite heat stabilizers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of castor oil-based dibasic acid

[0034] (1) Preparation of maleic anhydride modified castor oil-based dibasic acid

[0035] Add 68.62g of ricinoleic acid and 21.58g of maleic anhydride into a 250ml three-necked flask with a condenser and stir evenly. Raise the temperature to 90°C and react for 3.5 hours to obtain maleic anhydride-modified castor oil dibasic acid.

[0036] (2) Preparation of hexahydrophthalic anhydride modified castor oil-based dibasic acid

[0037] Add 68.62g of ricinoleic acid and 33.92g of hexahydrophthalic anhydride into a 250ml three-necked flask with a condenser, stir evenly, and react at 100°C for 3.5h to obtain hexahydrophthalic anhydride-modified castor oil-based dibasic acid.

[0038] (3) Preparation of succinic phthalic anhydride modified castor oil-based dibasic acid

[0039] Add 68.62g of ricinoleic acid and 22.02g of succinic phthalic anhydride into a 250ml three-necked flask with a condenser, stir evenly, and react for 2 h...

Embodiment 2

[0041] Preparation of Castor Oil-Based Dibasic Acid Zinc Salt

[0042] (1) Preparation of maleic anhydride modified castor oil-based zinc dibasic acid

[0043] Add 45.12g of maleic anhydride-modified castor oil-based dibasic acid, 12.18g of diethylene glycol monobutyl ether and 1.35g of ethylene glycol phenyl ether into a 250ml three-necked flask with a condenser tube and stir evenly. At 110°C, add 7.98g of ZnO powder in batches and react for 2.5 hours. After the reaction is complete, distill under reduced pressure until the water no longer escapes and stop the distillation. Add an appropriate amount of odorless kerosene, control the temperature at about 70°C, and stir for 15 minutes to obtain Maleic anhydride modified castor oil-based zinc dibasic acid, sealed and preserved.

[0044] (2) Preparation of hexahydrophthalic anhydride modified castor oil-based dibasic acid zinc

[0045]Add 52.04g of hexahydrophthalic anhydride-modified castor oil-based dibasic acid and an approp...

Embodiment 3

[0049] Preparation of Castor Oil-Based Dibasic Acid Calcium Salt

[0050] (1) Preparation of maleic anhydride modified castor oil-based calcium dibasic acid

[0051] Add 45.12g of maleic anhydride-modified castor oil-based dibasic acid, 7.89g of diethylene glycol monobutyl ether and 7.89g of ethylene glycol phenyl ether into a 250ml three-necked flask with a condenser and stir evenly. At 130°C, add 6.67g Ca(OH) in batches 2 Powder, react for 3.5 hours, after the reaction is completed, distill under reduced pressure until the water no longer comes out, stop the distillation, add an appropriate amount of odorless kerosene, control the temperature at about 70°C, and stir for 15 minutes to obtain maleic anhydride modified castor oil-based dibasic acid Calcium, sealed and preserved.

[0052] (2) Preparation and implementation of hexahydrophthalic anhydride modified castor oil-based calcium dibasic acid

[0053] Add 52.04g of hexahydrophthalic anhydride-modified castor oil-based ...

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Abstract

The invention provides castor oil-based calcium-zinc composite heat stabilizers and a preparation method thereof; with castor oil as a raw material, a series of novel castor oil-based dicarboxylic acids are designed and are made into the castor oil-based calcium-zinc composite heat stabilizers. The prepared castor oil-based calcium-zinc composite heat stabilizers are each composed of a calcium salt, a zinc salt, an antioxidant, an epoxy compound, phosphite ester, beta-diketone, the castor oil-based dicarboxylic acid, a solvent and the like. The prepared castor oil-based calcium-zinc composite heat stabilizers have higher thermal stability, the product early whiteness retention time of a heat aging oven method at the temperature of 180 DEG C can reach up to 60 min or more, and the castor oil-based calcium-zinc liquid composite heat stabilizers are mainly derived from vegetable oil, have the advantages of no toxicity, environmental protection, simple synthesis process and the like, contains no heavy metals, and are expected to replace petroleum-based heat stabilizers to be used as a new generation of green environmental-protection heat stabilizers.

Description

technical field [0001] The invention relates to a plant castor oil-based calcium-zinc composite heat stabilizer, and also relates to a preparation method of the stabilizer, which belongs to the technical field of preparation of plastic additives and its application. Background technique [0002] Polyvinyl chloride (PVC) is the second largest general-purpose resin in the world. Due to the large defects in the PVC structure, its thermal stability is poor. Therefore, it is necessary to add a thermal stabilizer during processing. At present, heat stabilizers can be mainly divided into lead salts, organic tins, metal soaps and inorganic stabilizers. Lead, barium and cadmium heat stabilizers contain heavy metals, which will endanger the environment and human health, while PVC products using organotin heat stabilizers will release unpleasant odors during processing. Petroleum-based heat stabilizers have to face problems such as the depletion of fossil raw materials, rising prices,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08K5/098C08K5/1515C08K5/526C08K5/07
Inventor 陈慧园卞刚蒋平平
Owner 蒋平平
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