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Polypropylene anti-reflection nucleating agent and preparation method thereof

A technology of nucleating agent and polypropylene, which is applied in the field of polypropylene anti-reflection nucleating agent and its preparation, can solve the problems of limited resin compatibility, infusible products, poor dispersion, etc., and achieve high compatibility and dispersion Good properties, transparency and crystallization temperature increase effect

Inactive Publication Date: 2012-04-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the defects existing in the prior art, the object of the present invention is to provide a polypropylene anti-reflection nucleating agent and its preparation method, which overcomes the excessively high melting point of the existing organic phosphate polypropylene anti-reflection nucleating agent during use , limited compatibility with resin, poor dispersion, easy to cause infusible material on the surface of the product, etc.

Method used

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  • Polypropylene anti-reflection nucleating agent and preparation method thereof
  • Polypropylene anti-reflection nucleating agent and preparation method thereof
  • Polypropylene anti-reflection nucleating agent and preparation method thereof

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preparation example Construction

[0050] The present invention also provides a preparation method for preparing the polypropylene antireflection nucleating agent by using the above components, the preparation steps are:

[0051]Take one or two of the A-type compounds, one of the B-type compounds, and the C-type compounds according to the following weight percentages: the weight percentage of the A-type compound is 10-80 parts by weight, and the weight percentage of the B-type compound The percentage is 10 to 50 parts by mass, and the percentage by weight of the C compound is 5 to 70 parts by mass;

[0052] Mix and grind the above-mentioned various compounds in a ball mill for 1 hour,

[0053] A homogeneous nucleating agent powder is obtained.

[0054] The substantive difference between the present invention and the prior art is that the polypropylene anti-reflection nucleating agent of the present invention is formed due to the composition containing the above three crystallization nucleating agents, wherein,...

preparation example 1

[0057] Preparation example 1 prepares class A compound

[0058] Add 2,2'-methylene-bis(4,6-di-tert-butylphenol) 42.4g, 160ml of toluene and 50ml of triethylamine in the reaction flask, stir until the solid is fully dissolved, and nitrogen gas is passed into the solution, The flow rate is 80ml / min, and at room temperature, add 20ml of phosphorus oxychloride at a uniform rate within 0.5 hours, and react for 12 hours after the addition is complete;

[0059] Add 150ml of water to the reaction bottle, stir for 0.5 hours at 75°C, then distill off the solvent toluene at 85°C, filter the remaining solid-liquid mixture, and wash with water to obtain a solid product, which is the intermediate product 2,2' - methylene-bis(4,6-di-tert-butylphenoxy)phosphate;

[0060] The intermediate product 2,2'-methylene-bis(4,6-di-tert-butylphenoxy)phosphate is dissolved in a mixture of salt-forming solvent acetone and water, and an aqueous aluminum chloride solution is added to the Substitute a diar...

preparation example 2

[0061] Preparation example 2 prepares class A compound

[0062] Add 42.4g of 2,2'-methylene-bis(4-methyl-6-tert-butylphenol), 160ml of toluene and 50ml of triethylamine into the reaction flask, stir until the solid is fully dissolved, and blow nitrogen into the solution In the process, the flow rate is 80ml / min, and at room temperature, 20ml of phosphorus oxychloride is added at a uniform rate within 0.5 hours, and the reaction is carried out for 12 hours after the dropwise addition is completed. Add 150ml of water to the reaction bottle, stir at 75°C for 0.5 hours, then distill off the solvent, filter, and wash with water to obtain a solid product, which is the intermediate product 2,2'-methylene-bis(4-methyl-6- tert-butylphenoxy) phosphate;

[0063] The intermediate product 2,2'-methylene-bis(4-methyl-6-tert-butylphenoxy)phosphate is dissolved in the mixed solution of salt-forming solvent acetone and water, and the aluminum chloride aqueous solution is added to the Said 2,...

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Abstract

The invention relates to a polypropylene anti-reflection nucleating agent and a preparation method thereof. According to the invention, the different guide effects of nucleating agents in the crystallizing process of polyolefin are used fully, long-chain fatty acid salt is beneficial to the dispersion of the nucleating agent and improvement of mechanical property and has the effects of a flow promoter and a releasing agent, and organic phosphate and aryl carboxylate can improve the transparence and rigidity of a product comprehensively. Through the combined use of the three compounds, namely the long-chain fatty acid salt, the organic phosphate and the aryl carboxylate, the effects of the three compounds can be played in the crystallizing process of polyolefin, thereby achieving an ideal use effect. According to the polypropylene anti-reflection nucleating agent and the preparation method thereof, the prepared nucleating agent not only can improve the transparence of a polypropylene material and enhance the physical properties of the polypropylene material, such as tensile strength, bending strength, impact strength and the like, but also can improve the crystallizing temperature of polypropylene greatly.

Description

technical field [0001] The invention relates to a composition of a polypropylene anti-reflection nucleating agent, in particular to a polypropylene anti-reflection nucleating agent and a preparation method thereof. Background technique [0002] Crystalline polymers, such as polyethylene, polypropylene, polyamide, PET (polyethylene terephthalate), etc., have a variety of crystal forms, and can form single crystals, spherulites, and fibers under different crystallization conditions. Crystal, etc., in the process of processing, it is easy to form larger incomplete crystals, which makes the rigidity and transparency of the product poor. [0003] Nucleating agents can promote the crystallization of amorphous or incompletely crystalline polymers, refine the grain structure, increase the crystallinity of polymers, and thereby increase the hardness, elastic modulus, tensile strength, and yield strength of plastics. On the other hand, the nucleating agent uniformly dispersed in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/527C08K5/098
Inventor 吕静兰顾民褚海斌徐耀辉李伟
Owner CHINA PETROLEUM & CHEM CORP
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