Preparation method of high-temperature-resistant biaxially-oriented polypropylene film

A polypropylene film, biaxial stretching technology, applied in the field of plastics, can solve the problems of poor heat resistance and toughness, and achieve the effects of reducing thermal shrinkage, good heat resistance and improving heat resistance.

Inactive Publication Date: 2019-10-08
含山县金中环装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing biaxially oriented polypropylene film has limited its fur...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a high temperature resistant biaxially stretched polypropylene film, comprising the following steps:

[0016] (1) Add 10 parts by weight of potassium feldspar and 10 parts of basalt fiber to 50 parts of 2% ethanol solution of dodecyltrimethylammonium chloride, stir at 100°C for 10 minutes, and then filter Wash, transfer to a ball mill, grind to particles with a particle size of 50-500nm, add to deionized water, then add 3 parts of sodium hydroxymethyl cellulose, ultrasonically treat at 40°C for 10 minutes, add 15 parts of Na 2 HPO 4 12H 2 O, then use 8% sodium hydroxide solution to adjust its pH to 9, continue ultrasonic treatment for 10 minutes, then transfer to the reaction kettle, react at 150 °C for 10 hours, cool, wash, filter, and dry to obtain hydroxyapatite Stone-coated potassium feldspar and basalt fibers;

[0017] (2) Disperse 20 parts of the product obtained in step (1) into deionized water, then add 4 parts of 8% sodium hydroxide, s...

Embodiment 2

[0023] A method for preparing a high temperature resistant biaxially stretched polypropylene film, comprising the following steps:

[0024] (1) Add 12 parts by weight of potassium feldspar and 13 parts of basalt fiber to 60 parts of 3% dodecyltrimethylammonium chloride ethanol solution, stir at 101°C for 11min, and then filter Wash, transfer to a ball mill, grind to particles with a particle size of 50-500nm, add to deionized water, then add 4 parts of sodium hydroxymethyl cellulose, ultrasonically treat at 45°C for 13 minutes, add 18 parts of Na 2 HPO 4 12H 2 O, then use 10% sodium hydroxide solution to adjust its pH to 9.5, continue ultrasonic treatment for 13 minutes, then transfer to the reactor, react at 153 °C for 11 hours, cool, wash, filter, and dry to obtain hydroxyapatite Stone-coated potassium feldspar and basalt fibers;

[0025] (2) Disperse 23 parts of the product obtained in step (1) into deionized water, then add 5 parts of 10% sodium hydroxide, stir at 300 r...

Embodiment 3

[0031] A method for preparing a high temperature resistant biaxially stretched polypropylene film, comprising the following steps:

[0032] (1) Add 15 parts by weight of potassium feldspar and 15 parts of basalt fiber to 80 parts of 4% dodecyltrimethylammonium chloride ethanol solution, stir at 102°C for 12min, and then filter Wash, transfer to a ball mill, grind to particles with a particle size of 50-500nm, add to deionized water, then add 5 parts of hydroxymethyl cellulose sodium, ultrasonically treat at 50°C for 15 minutes, add 20 parts of Na 2 HPO 4 12H 2 O, then use 12% sodium hydroxide solution to adjust its pH to 10, continue ultrasonic treatment for 15 minutes, then transfer to the reaction kettle, react at 155°C for 12 hours, cool, wash, filter, and dry to obtain hydroxyapatite Stone-coated potassium feldspar and basalt fibers;

[0033] (2) Disperse 25 parts of the product obtained in step (1) into deionized water, then add 6 parts of 12% sodium hydroxide, stir at...

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PUM

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Abstract

The invention discloses a preparation method of a high-temperature-resistant biaxially-oriented polypropylene film, and particularly relates to the technical field of plastics. The prepared biaxially-oriented polypropylene film has a relatively low heat shrinkage rate, has relatively good heat resistance, and has excellent mechanical property and wear resistance. Nano-scale potassium feldspar andbasalt fibers are used as a core material, and a hydroxyapatite coating layer is generated in situ on the surface of the core material, so that the obtained product has good wear resistance. Meanwhile, hydroxyl is introduced into the surface layer of the obtained product, and then epichlorohydrin reacts with hydroxyl of the surface of the obtained product, so that a grafting effect is achieved, and epoxy groups are introduced. The introduced epoxy groups can be subjected to a ring-opening polymerization reaction with the subsequently added octaamino silsesquioxane, so that the octaamino silsesquioxane is introduced into the surfaces of the hydroxyapatite-coated potash feldspar and basalt fibers, and then the purpose of modification is achieved.

Description

technical field [0001] The invention belongs to the technical field of plastics, in particular to a method for preparing a high-temperature-resistant biaxially stretched polypropylene film. Background technique [0002] Due to the advantages of light weight, transparency, non-toxicity, moisture resistance, low air permeability and high mechanical strength, polypropylene biaxially oriented film (BOPP) is widely used in the packaging and lamination of food, medicine, daily light industry, cigarettes and other products . With the development of the packaging industry, the consumption of biaxially oriented polypropylene film (BOPP for short) is increasing day by day. The annual consumption of domestic BOPP has exceeded 2 million tons, and it is an important product in the packaging field. The existing biaxially oriented polypropylene film has limited its further application in many fields due to its poor heat resistance and toughness. Contents of the invention [0003] In vi...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08K13/06C08K9/06C08K9/04C08K9/10C08K7/10C08K3/34C08K5/092C08K5/12C08J5/18
CPCC08J5/18C08J2323/12C08J2423/08C08K3/34C08K5/092C08K5/12C08K7/10C08K9/04C08K9/06C08K9/10C08K13/06
Inventor 郭坤
Owner 含山县金中环装饰材料有限公司
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