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Organic phosphate rare earth salt nucleater, synthesis method and application thereof

An organic phosphate ester and a synthesis method technology, applied in the fields of fine chemicals and polymer materials, can solve the problems of high melting point and insignificant anti-reflection effect, and achieve the effects of wide practicability, effective and feasible process, and excellent comprehensive performance.

Inactive Publication Date: 2009-08-12
广东华南精细化工研究院有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Organic phosphate salt has a planar structure of benzene ring, plus its functional group, has a good induction nucleation function, but its melting point is relatively high, generally above 300 ° C, which is higher than the melting temperature of the polymer, so it is anti-reflection The effect is not significant, mainly to improve the rigidity of the polymer

Method used

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  • Organic phosphate rare earth salt nucleater, synthesis method and application thereof
  • Organic phosphate rare earth salt nucleater, synthesis method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1: the synthesis of two (2,4-dimethylphenoxy) lanthanum phosphates

[0041] Add the ethanol solution that contains 306g two (2,4-dimethylphenoxy) phosphoric acid in reactor, its structural formula is as shown in general formula (IV), R 1 , R 2 For methyl. Under stirring, 20% sodium hydroxide aqueous solution containing 64 g of sodium hydroxide was added, and it was made to react at 80 degreeC for 2 hours. Then, a 20% aqueous solution of lanthanum chloride containing 343.7 g of lanthanum chloride was added, followed by stirring at normal temperature for 2 hours. After the reaction, filter, dry, and pulverize to obtain 440.3 g of bis(2,4-dimethylphenoxy)lanthanum phosphate.

Embodiment 2

[0042] Embodiment 2: the synthesis of 2,2'-methylene-bis(4,6-dimethylphenoxy)lanthanum phosphate

[0043] In reactor, add the ethanol solution that contains 318g2,2'-methylene-bis(4,6-dimethylphenoxy)phosphoric acid, its structural formula is as shown in general formula (III), R 1 , R 2 For methyl. Under stirring, 20% sodium hydroxide aqueous solution containing 64 g of sodium hydroxide was added, and it was made to react at 100 degreeC for 1 hour. Then, a 15% aqueous solution of lanthanum chloride containing 368.25 g of lanthanum chloride was added, followed by stirring at 80° C. for 1 hour. After completion of the reaction, filter, dry, and pulverize to obtain 447.93 g of 2,2'-methylene-bis(4,6-dimethylphenoxy)lanthanum phosphate.

Embodiment 3

[0044] Embodiment 3: two (2, the synthesis of 4-di-tert-butylphenoxy) cerium phosphate

[0045] Add the methanol solution that contains 474g two (2,4-di-tert-butylphenoxy) phosphoric acid in the reactor, its structural formula is as shown in general formula (IV), R 1 , R 2 For tert-butyl. Under stirring, 20% sodium hydroxide aqueous solution containing 56 g of sodium hydroxide was added, and it reacted at 80 degreeC for 2 hours. Then, 20% cerium chloride aqueous solution containing 394.8g of cerium chloride was added, and it stirred at normal temperature for 2 hours. After the reaction, filter, dry, and pulverize to obtain 620.78 g of bis(2,4-di-tert-butylphenoxy)cerium phosphate.

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Abstract

The invention relates to a nucleating agent for crystalline polymers and a synthesis process thereof, which comprises dissolving substituted diaryl phosphoric acid containing substituted alkyl R1 and R2 in an alcohol solution, and gradually adding alkali under the condition of heating and stirring solution, and then gradually add the aqueous solution of rare earth chloride salt, after the reaction is sufficient, it is filtered, dried and pulverized to obtain the final product. The present invention introduces light rare earth elements on the basis of organic phosphate, mainly light rare earth elements such as lanthanum and cerium, and forms organic phosphate rare earth salt, which is non-toxic, non-radioactive, safe to use, and has good stability. After the heat history, the nucleation effect is basically unchanged, and has a high crystal conversion rate and nucleation efficiency. It is a compound with a new structure, and it is also a new nucleation that can be applied to both general-purpose plastics and engineering plastics. agent.

Description

technical field [0001] The invention relates to the fields of fine chemical industry and polymer materials, in particular to a nucleating agent for crystalline polymers and a synthesis process thereof. Background technique [0002] The microscopic morphology of polymers can be divided into amorphous and crystalline states. The physical and mechanical properties and processing properties of general crystalline polymers are closely related to their crystal morphology. Therefore, any substance that can affect the crystal form of the polymer can effectively control the apparent mechanical properties and processing properties of the polymer. The most notable property of this type of substance is the nucleating agent. [0003] Nucleating agents are divided into inorganic nucleating agents and organic nucleating agents. Inorganic nucleating agents provide heterogeneous nucleation centers in the molten state of the polymer, and rely on heterogeneous crystal nuclei to grow during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00C08K5/521
Inventor 陈宇王朝晖
Owner 广东华南精细化工研究院有限公司
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