Organophosphate polypropylene nucleation agent and its preparation method

A technology of polypropylene nucleating agent and organic phosphate ester is applied in the field of polypropylene nucleating agent and its preparation, which can solve the problems of environmental pollution, complicated operation, increase of manufacturing cost, etc. The effect of reducing energy consumption

Active Publication Date: 2006-05-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wet process is not only complicated to operate, but also must use a large amount of water and organic solvents, which has disadvantages such as causing environmental pollution and increasing manufacturing costs.

Method used

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  • Organophosphate polypropylene nucleation agent and its preparation method
  • Organophosphate polypropylene nucleation agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0028] Example 1-3 Preparation of the nucleating agent of the present invention

Embodiment 1

[0030] Add 53.88 g of bis(2,4-di-tert-butylphenoxy)phosphoric acid to the dry mixing mixer, whose structural formula is shown in (II), R 1 , R 2 is tert-butyl. Under stirring, 1.8 grams of catalyst urea was dissolved in 3 grams of water, and the aqueous solution of urea, 2.5 grams of acetone, and 36.2 grams of isobutanol were sprayed with a sprayer, and then mixed at room temperature for 1 hour, and then the temperature was raised to 40 ~50 °C for 1.5 hours, the moisture content of the material measured by a rapid humidity tester is 13±2%, then the temperature is raised to 135 °C, stirring is continued for 2.5 hours, then dried, and pulverized to obtain bis(2,4- Di-tert-butylphenoxy) tert-butyl phosphate, melting point greater than 270°C.

Embodiment 2

[0032] 70.2 g of 2,2'-methylene-bis(4,6-di-tert-butylphenoxy)phosphoric acid was added to the dry mixing mixer, the structural formula of which is shown in (I), R 1 , R 2 is tert-butyl. Under stirring, 1.8 grams of catalyst urea was dissolved in 3 grams of water, and the aqueous solution of urea, 2.5 grams of acetone, and 37.8 grams of isobutanol were sprayed with a sprayer, and then mixed at room temperature for 1 hour, and then the temperature was raised to 40~ Keep at 50°C for 1.5 hours, measure the moisture content of the material with a rapid humidity meter to be 13±2%, then raise the temperature to 138°C, continue stirring for 2.5 hours, then dry and pulverize to obtain 2,2′-methylene Base-bis(4,6-di-tert-butylphenoxy) tert-butyl phosphate, melting point greater than 270°C.

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Abstract

The invention discloses the organophosphorus ester polypropylene nucleation agent and its preparation method. The method comprises the following steps: using the replacement diaryl phosphoric acid and alcohols as reactants, spraying the water, organic solvent and alcohols into the replacement diaryl phosphoric acid separately, controlling the moisture content at 3-22úÑ, with the esterification catalysts, stirring and reacting. The said replacement diaryl organophosphorus ester can be used as nucleation improver of profax, improving the processing property of profax.

Description

technical field [0001] The invention relates to a polypropylene nucleating agent and a preparation method thereof. Background technique [0002] Diaryl organophosphoric acid compounds are widely used as nucleation modifiers for polypropylene resins and are used in the modification of polypropylene resins. Among them, substituted diaryl organophosphate metal salts such as bis(2,4-di-tert-butylphenoxy) sodium phosphate, 2,2'-methylene-bis(4,6-di-tert-butylphenoxy) Sodium phosphate, etc., can significantly improve the processability of these resins. The above content can be found in the scientific literature "High Performance of Polypropylene - Nucleating Agents" ("Chemical Industry", 1999(8), p11), "Influence of Nucleating Agents on the Properties of Polypropylene" ("Synthetic Resins and Plastics" , 2001, 18(4), 39-41). [0003] DE3940765A1 discloses a preparation method of a diaryl organic phosphoric acid compound. In the method, the substituted aryl phosphoric acid is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/527C08F2/34C08F110/06
Inventor 顾民张丽英吕静兰李伟张浩王小兰邵静波闫一凡
Owner CHINA PETROLEUM & CHEM CORP
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