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Nucleating agent, polypropylene resin and preparation method and application thereof

A technology of polypropylene resin and nucleating agent, applied in the field of polypropylene resin and its preparation, and nucleating agent, can solve problems such as unsatisfactory mechanical properties, and achieve the effects of good emulsion stability and shortened reaction time.

Active Publication Date: 2022-07-08
涿州市隽诚化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is to provide a kind of nucleating agent, polypropylene resin and preparation method thereof, application, solve the problem that the sodium benzoate nucleating agent in the prior art is applied to the unsatisfactory mechanical property of polypropylene resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The preparation method of the nucleating agent of the present embodiment uses a high internal phase emulsion as a system to polymerize to generate a nucleating agent, including the following steps:

[0052]Dissolve the hydroxyl group-containing substance and the carboxylate-containing substance in water to form a dispersed phase;

[0053] Dissolving long aliphatic chain glycidyl ether and glycidyl ester monomer in an organic solvent to form a continuous phase;

[0054] The dispersed phase was added dropwise to the continuous phase at a rate of 10 ml / min to carry out a polymerization reaction, the reaction temperature was 70° C., and the reaction time was 8 h to obtain a nucleating agent.

[0055] Wherein, the volume ratio of the dispersed phase to the continuous phase is 74:26;

[0056] The mass ratio of the hydroxyl group-containing substance, the carboxylate-containing substance, and the water is 1:25:60.

[0057] The mass ratio of the long aliphatic chain glycidyl ...

Embodiment 2

[0061] The preparation method of the nucleating agent of the present embodiment uses a high internal phase emulsion as a system to polymerize to generate a nucleating agent, including the following steps:

[0062] Dissolve the hydroxyl group-containing substance and the carboxylate-containing substance in water to form a dispersed phase;

[0063] Dissolving long aliphatic chain glycidyl ether and glycidyl ester monomer in an organic solvent to form a continuous phase;

[0064] The dispersed phase was added dropwise to the continuous phase at a rate of 15 ml / min to carry out a polymerization reaction, the reaction temperature was 80° C., and the reaction time was 6 h to obtain a nucleating agent.

[0065] Wherein, the volume ratio of the dispersed phase to the continuous phase is 80:20;

[0066] The mass ratio of the hydroxyl group-containing substance, the carboxylate-containing substance, and the water is 9:40:60.

[0067] The mass ratio of the long aliphatic chain glycidyl...

Embodiment 3

[0071] The preparation method of the nucleating agent of the present embodiment uses a high internal phase emulsion as a system to polymerize to generate a nucleating agent, including the following steps:

[0072] Dissolve the hydroxyl group-containing substance and the carboxylate-containing substance in water to form a dispersed phase;

[0073] Dissolving long aliphatic chain glycidyl ether and glycidyl ester monomer in an organic solvent to form a continuous phase;

[0074] The dispersed phase was added dropwise to the continuous phase at a rate of 20 ml / min to carry out a polymerization reaction, the reaction temperature was 60° C., and the reaction time was 7 h to obtain a nucleating agent.

[0075] Wherein, the volume ratio of the dispersed phase to the continuous phase is 90:10;

[0076] The mass ratio of the hydroxyl group-containing substance, the carboxylate-containing substance, and the water is 5:10:60.

[0077] The mass ratio of the long aliphatic chain glycidyl...

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Abstract

The invention provides a nucleating agent, polypropylene resin and a preparation method and application thereof, the preparation method of the nucleating agent comprises the following steps: taking a high internal phase emulsion as a system, polymerizing to generate the nucleating agent, and dissolving a substance containing a hydroxyl group and a substance containing carboxylate in water to form a dispersed phase; the method comprises the following steps: dissolving long aliphatic chain glycidyl ether and a glycidyl ester monomer in an organic solvent to form a continuous phase; and adding the dispersed phase into the continuous phase, and carrying out polymerization reaction to obtain the nucleating agent. The prepared nucleating agent is long-aliphatic-chain chemically modified benzoate, organic modification of sodium benzoate is realized in a long-aliphatic-chain modification mode, compatibility of sodium benzoate in polypropylene is improved, the effect of the nucleating agent in polypropylene is effectively improved, and when the nucleating agent is applied to polypropylene resin, the nucleating agent has excellent mechanical properties and mechanical properties. The function of remarkably improving the bending modulus of the polypropylene is realized.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a nucleating agent, a polypropylene resin and a preparation method and application thereof. Background technique [0002] Nucleating agent is an auxiliary agent for incompletely crystalline plastics such as polyethylene and polypropylene. It can shorten the molding process by changing the crystallization behavior of the resin, accelerating the crystallization rate, increasing the crystallization density and promoting the miniaturization of the grain size. Cycle, improve product transparency, surface gloss, tensile strength, rigidity, thermal deformation temperature, impact resistance, creep resistance and other physical and mechanical properties. [0003] As a nucleating agent, sodium benzoate can effectively improve the crystallinity and crystallization temperature of polypropylene, and is a commonly used polypropylene nucleating agent. The dispersibility of sodium be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08L23/12C08L67/00
CPCC08G63/91C08L23/12C08L2205/24C08L67/00
Inventor 任兴嘉
Owner 涿州市隽诚化工有限公司
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