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Polypropylene/montmorillonite nanometer composite material preparation method

A technology of nanocomposite materials and montmorillonite, which is applied in the field of preparation of polypropylene/montmorillonite nanocomposite materials, can solve the problems of not being able to improve the overall performance of composite materials, and achieve perfect comprehensive performance, high feasibility and convenient operation Effect

Pending Publication Date: 2017-04-19
GUANGXI TEACHERS EDUCATION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the prepared polypropylene / montmorillonite composite material only starts with the improvement of a certain material performance, and cannot improve the overall performance of the composite material, which limits the wide application of the composite material. Therefore, it is necessary to find a A nano-sized polypropylene / montmorillonite that can not only maintain the original excellent properties of polypropylene, but also enhance its tensile properties, bending properties, impact properties, hardness, thermal properties, rheological properties, combustion properties and other mechanical properties. Composite materials make it possible to meet the diverse needs of people and have broad market prospects

Method used

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  • Polypropylene/montmorillonite nanometer composite material preparation method

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Effect test

Embodiment 1

[0031] A preparation method of polypropylene / montmorillonite nanocomposite, comprising the following steps:

[0032]Step 1, the pretreatment of montmorillonite: in parts by weight, get 0.3 parts of montmorillonite with a cation exchange capacity of 50mep / 100g, divide it into three equal parts, and disperse the montmorillonite of the first equal part in 3 parts of deionized water, placed in an ultrasonic wave for 10 minutes, and then quickly put into an ice-salt bath for rapid solidification to obtain a first solidified body, which was packed into a first cloth bag, and the second solidified body was A cloth bag is placed in a vacuum drying oven with a pressure of 1.33 Pa and a temperature of 35° C. to remove the moisture in the first solidified body to obtain the dried first pretreated montmorillonite;

[0033] Disperse the second equal portion of montmorillonite in 3 parts of absolute ethanol, place it in an ultrasonic wave for 10 minutes, and then quickly put it into a cooli...

Embodiment 2

[0042] A preparation method of polypropylene / montmorillonite nanocomposite, comprising the following steps:

[0043] Step 1, pretreatment of montmorillonite: in parts by weight, get 2.7 parts of montmorillonite with a cation exchange capacity of 150mep / 100g, divide into three equal parts, and disperse the montmorillonite of the first equal part in 9 parts of deionized water, placed in an ultrasonic wave for 20 minutes of ultrasonic vibration, and then quickly put into an ice-salt bath for rapid solidification to obtain a first solidified body, and put the first solidified body into a first cloth bag, and place the first solidified body in a cloth bag. A cloth bag is placed in a vacuum drying oven with a pressure of 1.33 Pa and a temperature of 40° C. to remove the moisture in the first solidified body to obtain the dried first pretreated montmorillonite;

[0044] Disperse the second equal portion of montmorillonite in 9 parts of absolute ethanol, place it in an ultrasonic wave...

Embodiment 3

[0053] A preparation method of polypropylene / montmorillonite nanocomposite, comprising the following steps:

[0054] Step 1, pretreatment of montmorillonite: in parts by weight, get 1.5 parts of montmorillonite with cation exchange capacity of 100mep / 100g, divide into three equal parts, disperse the montmorillonite of the first equal part in 6 parts of deionized water were placed in an ultrasonic wave for 15 minutes of ultrasonic vibration, and then quickly put into an ice-salt bath for rapid solidification to obtain a first solidified body, which was packed into a first cloth bag, and the second solidified body was A cloth bag is placed in a vacuum drying oven with a pressure of 1.33 Pa and a temperature of 38° C. to remove the moisture in the first solidified body to obtain the dried first pretreated montmorillonite;

[0055] Disperse the second equal portion of montmorillonite in 6 parts of absolute ethanol, place it in an ultrasonic wave for 15 minutes, and then quickly pu...

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Abstract

The invention discloses a polypropylene / montmorillonite nanometer composite material preparation method, which comprises: 1, montmorillonite pre-treatment: carrying out three different pre-treatments on three equal montmorillonite to finally obtain pre-treated composite montmorillonite; 2, montmorillonite modification: uniformly dividing the pre-treated composite montmorillonite into two equal parts and respectively carrying out two different modification treatments to obtain modified composite montmorillonite; 3, polypropylene modification: mixing polypropylene, a grafting monomer and an initiator by using a high-speed stirrer, and carrying out melting blending with a twin-screw extruder to obtain modified polypropylene; and 4, polypropylene / montmorillonite nanometer composite material preparation. According to the present invention, the obtained polypropylene / montmorillonite nanometer composite material has excellent mechanical properties such as tension performance, bending performance, impact resistance and the like, can meet diversified requirements of people, and has broad market prospects.

Description

technical field [0001] The invention relates to the technical field of polymer materials. More specifically, the present invention relates to a preparation method of polypropylene / montmorillonite nanocomposite. Background technique [0002] At present, the research on nanocomposite materials is very active at home and abroad, the preparation methods have their own characteristics, and there are many kinds of fillers added. According to the types of fillers added, nanocomposites can be roughly divided into two categories: one is polypropylene / inorganic rigid particle nanocomposites, and the fillers include CaCO 3 , SiO 2 , Al 2 o 3 etc., the other is polypropylene / layered silicate nanocomposites, in which the fillers include montmorillonite, hectorite, sepiolite, mica, talc, smectite, kaolin, etc., wherein polypropylene / montmorillonite Soil-removing nanocomposites have become a research hotspot. [0003] The intercalation composite technology of polypropylene and organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08K9/04C08K9/00C08K3/34C08K7/24C08F255/02C08F222/28C08F222/40C08F220/32B29B9/06B29C47/92B29C48/92
CPCC08F255/02C08K3/346C08K7/24C08K9/00C08K9/04B29B9/06B29C48/92B29C2948/92704C08K2201/011C08K2201/014C08L51/06C08F220/325C08F222/40
Inventor 刘钰馨
Owner GUANGXI TEACHERS EDUCATION UNIV
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