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Binary composite polypropylene nucleating agent and preparation method and application thereof

A technology of polypropylene nucleating agent and binary compound, which is applied in the field of polymers, can solve the problems of difficult industrialization and cumbersome processing process, and achieve the effects of low price, simple preparation process, and enlarged contact area

Active Publication Date: 2014-08-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dispersion and compatibility of organically treated inorganic nanoparticles in polypropylene are significantly improved, but the processing process is cumbersome and it is not easy to realize industrialization

Method used

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  • Binary composite polypropylene nucleating agent and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 100 grams of NA11 [2,2'-methylenedimetha-bis(4,6-di-n-butylphenol) phosphate] (Zhongda Chemical Co., Ltd., trade mark NP-508) and absolute ethanol (produced by Beijing Chemical Plant) , ethanol ≥ 99.7%) 900 grams are mixed by the concentration of 10wt%, obtain the fully dissolved NA11 absolute ethanol solution, set aside. Attapulgite (produced by Mingmei Mineral Co., Ltd. in Anhui Province, brand 701A, which is an aggregate of attapulgite single crystals, the average fineness of the aggregate is 425 mesh=33 μm, and the purity is more than 99%) 63 grams and 1197 grams of water Mix by the concentration of 5wt%, disperse through high-shear disperser (FLUKO production, model FA25) disperse 20 minutes to obtain fully peel off suspension 1260 grams, in the prepared attapulgite suspension, attapulgite is single crystal and is dispersed in water, The single crystal diameter ranges from 10-20 nanometers, and the aspect ratio is greater than 10. Get 70 grams of prepared NA11 deh...

Embodiment 2

[0031] Get 175 grams of 10wt% NA11 absolute ethanol solution (prepared in Example 1), prepare 1050 grams of 5wt% attapulgite suspension with Example 1, and quickly pour 175 grams of NA11 absolute ethanol solution into the dispersed attapulgite suspension In 1050 grams of liquid, all the other operations are also the same as in Example 1, and the 2# binary composite polypropylene nucleating agent with a weight ratio of attapulgite and NA11 after drying is collected in a cyclone separator to obtain 75 / 25.

Embodiment 3

[0033] Get 280 grams of 10wt% 1NA11 absolute ethanol solution (prepared in Example 1), prepare 840 grams of 5wt% attapulgite suspension with Example 1, and quickly pour 280 grams of NA11 absolute ethanol solution into the dispersed attapulgite suspension In 840 grams of liquid, the rest of the operations were the same as in Example 1, and the dried attapulgite and NA11 were collected in a cyclone separator to obtain a 3# binary composite polypropylene nucleating agent with a weight ratio of 60 / 40.

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Abstract

The invention discloses a binary composite polypropylene nucleating agent, a preparation method and an application thereof. The nucleating agent comprises inorganic nanoparticles and an organic nucleating agent, wherein the weight ratio of the inorganic nanoparticles to the organic nucleating agent is 95:5-50:50; the inorganic nanoparticle is attapulgite or silica; the organic nucleating agent is NA11. The preparation method comprises the following steps: (1) fully dissolving the organic nucleating agent in an organic solvent; (2) forming a suspension of the inorganic nanoparticles with water; (3) adding the organic solution formed in step (1) into the suspension formed in step (2) according to the proportion, performing spray drying to obtain the product. The nucleating agent of the invention has the advantages of few using amount, low price, simple preparation process, improved mechanical properties, and the like, and is an ideal polypropylene resin mechanical modifier.

Description

technical field [0001] The invention relates to the field of macromolecules, in particular to a binary composite polypropylene nucleating agent and its preparation method and application. Background technique [0002] Polypropylene is a widely used thermoplastic with low price and good overall performance. Therefore, its production demand is increasing day by day. In order to meet many requirements in applications and other aspects, people continue to study various methods to improve the performance of polypropylene. Among them, improving the mechanical properties of polypropylene products by adding nucleating agents is one of the simple and effective modification methods to realize high-performance polypropylene. At present, the polypropylene nucleating agent widely used in the market is an organic nucleating agent. The amount of organic nucleating agent is small, and the nucleating effect is obvious, that is, the mechanical properties of polypropylene can be significantly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K3/34C08K3/36C08K5/523
Inventor 刘轶群苗壮乔金樑潘国元郭敏
Owner CHINA PETROLEUM & CHEM CORP