Polypropylene nucleator and its prepn process

A polypropylene nucleating agent and the technology of nucleating agent are applied in the field of polypropylene nucleating agent and its preparation, and can solve the problems of poor dispersibility, high melting point, rising cost and the like

Inactive Publication Date: 2003-07-30
YANGZI PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high melting point of the organophosphate nucleating agent, the dispersion in polypropylene is poor, resulting in an increase in the amount of use and a large increase in cost, which limits its wide application.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0011] The nucleating agent is composed of organic phosphates and their derivatives, ultrafine inorganic oxides, aluminum lithium compounds, and higher fatty acid salts. The organic phosphates in the base include alkylmethylenebis(2,4-dialkyl The molecular formulas of phenoxy)phosphate and bis[alkylmethylenebis(2,4-dialkylphenoxy)]phosphate, organic phosphate and derivatives thereof are:

[0012] Among them, M1 is Al, Ti, Sn, Zr and other metals, R1, R2, R3, R4, R5 are all hydrogen atoms or C 1 ~C 4 Alkyl groups or their isomers; the molecular formula of ultrafine inorganic oxides and aluminum lithium compounds is: [AL 2 Li(OH) 6 ] n Y.mH 2 O, wherein Y is an organic acid group, m is greater than "0" and less than "3". Its alkyl methylene bis (2,4-dialkylphenoxy) phosphate accounts for 10-60, preferably 20-60; bis [alkyl methylene bis (2,4-dialkylphenoxy) )] phosphate is 10-50, preferably 20-40; aluminum-lithium compound accounts for 5-40, preferably 20-40; ultrafine i...

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Abstract

The present invention is polypropylene nucleator and its preparation process with alkyl metal phosphate as material. The nucleator is prepared with organic phosphate and its derivative, superfine inorganic oxide, aluminium-lithium compound and high level aliphatic salt as material. The organic phosphate includes alkyl methylene di(2,4-bialkyl phenoxy) phosphate and di[alkyl methylene di(2,4-bialkyl phenoxy)] phosphate. The preparation process includes mixing, grinding and sieving and obtains polypropylene nucleator to 0.5-100 micron diameter.

Description

1. Technical field: [0001] The invention relates to a polypropylene nucleating agent and a preparation method thereof, in particular to a polypropylene nucleating agent prepared from an alkyl metal phosphate as a raw material and a preparation method thereof. 2. Background technology: [0002] Polyene is a kind of translucent and translucent semi-crystalline resin with excellent performance, low price, wide application and translucence. The transparency of polypropylene can be improved by adding nucleating agent to obtain transparent polypropylene plastic. The polypropylene nucleating agents currently on the market mainly include sorbitol type and organic phosphate. The existing organophosphate series nucleating agents improve the transparency of polypropylene to a certain extent, and increase the crystallization temperature, flexural modulus and heat distortion temperature of polypropylene. However, due to the high melting point of the organophosphate nucleating agent, its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/5397C08L23/12
Inventor 朱维平王亚明汪开秀明军
Owner YANGZI PETROCHEM
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