A kind of modified nano barium sulfate reinforced polypropylene membrane and preparation method thereof

A nano barium sulfate and polypropylene film technology, applied in the field of functional packaging materials, can solve the problems of high surface energy, unstable thermodynamics, large specific surface area, etc., and achieve the effects of good mechanical properties and barrier properties, beautiful appearance and high transparency

Active Publication Date: 2018-01-26
WUXI JIATAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nano-barium sulfate has attracted people's attention due to its small particle size and large specific surface area. However, because of its unique advantages, it also brings disadvantages such as high surface energy and thermodynamic instability. Therefore, it is necessary to find a suitable Modifiers and modification methods for surface modification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 15 parts of nano-barium sulfate, 3.5 parts of maleic anhydride grafted polyethylene, 68 parts of polypropylene resin, 3.2 parts of organic montmorillonite, 0.3 parts of coupling agent, Enhancer 10 parts.

[0031] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is a phthalate coupling agent. The reinforcing agent is nano kaolin. The compatibilizer is organic montmorillonite.

[0032] The specific steps are:

[0033] (1) Preparation of modified nano barium sulfate:

[0034] a. Take nano-barium sulfate, add 250 parts of absolute ethanol, then add 0.5 parts of sodium chloride, heat and reflux and stir, and control the temperature at 55-60°C, so that the nano-barium sulfate is completely dispersed to form a suspension;

[0035] b. Take nano-barium sulfate suspension and add it to a beaker, heat it in a constant temperature water bath to 70°C, and keep it at ...

Embodiment 2

[0041] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 20 parts of nano-barium sulfate, 3.2 parts of maleic anhydride grafted polyethylene, 65 parts of polypropylene resin, 3 parts of organic montmorillonite, 0.8 parts of coupling agent, Enhancer 8 parts.

[0042] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is or aluminate coupling agent. The reinforcing agent is nano kaolin and microcrystalline muscovite. The compatibilizer is maleic anhydride grafted polyethylene and maleic anhydride grafted polypropylene.

[0043] The specific steps are:

[0044] (1) Preparation of modified nano barium sulfate:

[0045] a. Take nano-barium sulfate, add 280 parts of absolute ethanol, then add 2 parts of sodium chloride, heat and reflux and stir, and control the temperature at 60-70°C, so that the nano-barium sulfate is completely dispersed to form a suspension;

[0046] b. Take the nano-barium sulfate suspension and a...

Embodiment 3

[0052] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 25 parts of nano-barium sulfate, 3 parts of maleic anhydride grafted polyethylene, 60 parts of polypropylene resin, 3 parts of organic montmorillonite, 1 part of coupling agent, Enhancer 8 parts.

[0053] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is a phthalate coupling agent and or an aluminate coupling agent. The reinforcing agent is microcrystalline muscovite. The compatibilizer is maleic anhydride grafted polypropylene.

[0054] The specific steps are:

[0055] (1) Preparation of modified nano barium sulfate:

[0056] a. Take nano-barium sulfate, add 265 parts of absolute ethanol, then add 1.2 parts of sodium chloride, heat and reflux and stir, and control the temperature at 60°C, so that the nano-barium sulfate is completely dispersed to form a suspension;

[0057] b. Take the nano-barium sulfate suspension and add it to the beaker, heat it i...

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Abstract

The invention relates to a polypropylene film reinforced by modified nano barium sulfate and a preparation method of the polypropylene film and belongs to the technical field of functional packaging materials. The polypropylene film is prepared by using the modified nano barium sulfate as the toughening agent and organic montmorillonite and maleic anhydride grafted polyethylene as the compatibilizer, adding certain reinforcing agent and using PP as base material through blowing. The reinforced composite polypropylene film prepared by the method is good in heat resistance, high in barrier property, high in tensile property, high in breaking elongation rate and good in anti-aging performance, has certain flame retardance, and is widely applicable to fields such as daily necessities and household appliances.

Description

technical field [0001] The invention relates to a modified nano barium sulfate reinforced polypropylene film and a preparation method thereof, belonging to the technical field of functional packaging materials. Background technique [0002] With the continuous development of industry, polymer materials are widely used, and the requirements for material performance in various fields are constantly improving. In order to meet the needs of the application, the materials made of pure resin are insufficient. Therefore, the field of polymer materials must be innovated, and the research on plastic modification is becoming more and more important. Good toughness, high strength, good performance and low price, etc. A single homopolymer material is often difficult to meet the above requirements, so the existing polymer materials can be modified by nanocomposite technology, and new polymer materials with excellent comprehensive properties can be made, which has become an important res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/06C08K9/04C08K3/30C08K3/34B29C49/78
CPCB29C49/786C08K2201/011C08K2201/014C08L23/12C08L2203/16C08L2205/025C08L2205/03C08L51/06C08K13/06C08K9/04C08K2003/3045C08K3/346C08K3/34
Inventor 赖玉庭刘晓伟宋会民王利强刘小朋周霞蔡菲
Owner WUXI JIATAI TECH
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