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Preparation method and application of polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent

A technology of silsesquioxane and heterocyclic phosphate, which is applied in the field of polypropylene modification, can solve the problems of reducing the nucleation efficiency of nucleating agents, poor compatibility and dispersion, and easy agglomeration of powder, so as to achieve full nucleation effect, promotion of dispersion, effect of nucleation efficiency improvement

Pending Publication Date: 2020-12-04
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the substituted aryl heterocyclic phosphate salt nucleating agent shows its own defects in large-scale industrial production. When it is used as a nucleating agent in polypropylene, the powder produced is easy to agglomerate and has low molecular weight. The inherent poor compatibility and dispersion of organic nucleating agents undoubtedly reduces the nucleating efficiency of nucleating agents; while polyhedral oligomeric cage silsesquioxane (POSS) is a hybrid material (organic- Inorganic), it contains a rigid cage-type silica inorganic core, which can be used as an additive to polypropylene to increase its rigidity, and its surface is connected with reactive or inert organic groups, which can improve compatibility with polymer substrates

Method used

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  • Preparation method and application of polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent
  • Preparation method and application of polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent
  • Preparation method and application of polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Dissolve 1g of bis(4-tert-butylphenyl)sodium phosphate nucleating agent in 40ml of absolute ethanol solution, then mix the absolute ethanol solution with octapolymethyl cage silsesquioxane evenly under ultrasonic . The temperature for ultrasonic mixing is 50°C, the time is 120 minutes, the frequency is 35kz, and the power is 100%. The mass ratio of the nucleating agent to POSS is 1:1, and then the mixture of the two is dried at 100°C for 24 hours and passed through a 200-mesh sieve to obtain the cage-type silsesquioxane-supported substituted aryl heterocyclic phosphoric acid The ester or salt nucleating agent is characterized by EDS (X-ray energy spectrometer) to prove that its loading is successful. Such as figure 1 as shown, figure 1 It is an X-ray energy spectrometer (EDS) schematic diagram of the cage silsesquioxane supported substituted aryl heterocyclic phosphate (ester) salt nucleating agent prepared in Example 1 of the present invention. It can be seen from ...

Embodiment 2

[0044] 3g of 2,2'-methylene bis(4,60 di-tert-butylphenyl)phosphate was dissolved in 40ml of anhydrous methanol solution, and then the prepared solution was mixed with octapolyphenyl cage silsesquioxane Mix well under ultrasound. The temperature for ultrasonic mixing is 30°C, the time is 30 minutes, the frequency is 53kz, and the power is 100%. The mass ratio of nucleating agent to POSS is 1:1. Subsequently, the mixture of the two was dried at 100° C. for 24 hours, and passed through a 200 mesh sieve to obtain the cage-type silsesquioxane supported substituted aryl heterocyclic phosphate or salt nucleating agent, which was passed through EDS (X-ray energy spectrometer) to prove its successful loading.

[0045] 0.14 parts by weight of the cage-type silsesquioxane-supported substituted aryl heterocyclic phosphate or salt nucleating agent, 0.1 parts by weight of antioxidant 1010, 0.1 part by weight of antioxidant 168, and 99.66 parts by weight of polypropylene in a twin-screw M...

Embodiment 3

[0047] Dissolve 2g of 2,2'-methylene-bis(4,6-di-tert-butylphenyl)sodium phosphate nucleating agent in 40ml of absolute ethanol solution, and then mix the prepared solution with octaisobutyl The cage silsesquioxane was mixed homogeneously under ultrasound. The temperature for ultrasonic mixing is 40°C, the time is 100 minutes, the frequency is 53kz, and the power is 100%. The mass ratio of the nucleating agent to cage silsesquioxane is 1:7.5. Subsequently, the mixture of the two was dried at 100° C. for 24 hours, and passed through a 400 mesh sieve to obtain the cage silsesquioxane supported substituted aryl heterocyclic phosphate or salt nucleating agent, which was passed through EDS (X-ray energy spectrometer) to prove its successful loading.

[0048] The cage silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent 0.34 parts by weight, 0.1 parts by weight antioxidant 1010, 0.1 parts by weight antioxidant 168, 99.46 parts by weight polypropyle...

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Abstract

The invention discloses a preparation method of a polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent, which comprises the following steps: carrying out ultrasonic uniform mixing on 0.001-50g / ml of a nucleating agent solution and polyhedral oligomeric silsesquioxane according to the mass ratio of 1: (1-25), thereby obtaining the polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent, and drying and sieving to obtain the polyhedral oligomeric silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent. The polyhedral oligomeric silsesquioxane supported substituted aryl heterocyclic phosphate or salt nucleating agent prepared by the invention can provide ahigh content of nucleating sites under the condition of a low addition amount of the nucleating agent, and the nucleating efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polypropylene modification, and in particular relates to a preparation method and application of a cage-type silsesquioxane loaded substituted aryl heterocyclic phosphate or salt nucleating agent. Background technique [0002] Polypropylene (PP) is a common thermoplastic resin widely used in consumer packaging, automotive parts, and textiles due to its ease of processing, relatively low cost, and wide variety of uses. However, polypropylene also has some disadvantages, such as slow crystallization speed, long molding processing cycle, weather resistance, light and heat resistance, anti-aging performance and low temperature impact resistance, poor gloss and transparency of products, etc., which make its application subject to certain restrictions. limit. In order to expand the application of polypropylene, it needs to be modified, and the nucleating agent modification has the advantages of convenient oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/12C07F9/6574C08L23/12C08K9/12C08K5/521
CPCC07F9/12C07F9/65744C08K9/12C08K5/521C08L2205/24C08L23/12
Inventor 辛忠张娴
Owner EAST CHINA UNIV OF SCI & TECH
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