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Thermoplastic cellulose composite material and preparation method thereof

A composite material and cellulose technology, which is applied to cellulose-based composite materials and their preparation, as well as the field of fiber materials and their preparation, can solve problems such as inability to fuse and compound, and achieve widening application fields, high production efficiency, and simple process. Effect

Active Publication Date: 2014-11-26
ZONYA PRINTING & PACKAGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantage that the current cellulose materials cannot be melted and compounded, the present invention provides a thermoplastic cellulose composite material that can be prepared by melting and compounding and a preparation method thereof

Method used

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  • Thermoplastic cellulose composite material and preparation method thereof
  • Thermoplastic cellulose composite material and preparation method thereof
  • Thermoplastic cellulose composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 60 grams of cotton linters and 40 grams of 1-allyl-3-methylimidazolium chloride salt were mixed and stirred to obtain a muddy premix with uniform appearance. The resulting premix is ​​placed on an open mill, heated to 130° C. and stabilized for 10 minutes before kneading. After 5 minutes, a uniform 1-allyl-3-methylimidazolium chloride-fiber with a cellulose content of 60 wt % is obtained. Vegetarian base. Add 9 grams of calcium carbonate powders respectively on the mill subsequently, after continuing mixing for 5 minutes, add 9 grams of calcium carbonate powders again, mixing 10 minutes. Then put the obtained material into a 5cm×7cm×0.1cm mold, put it in a flat vulcanizer, and press it at 100°C and 20MPa to obtain 1-allyl-3-methylimidazolium chloride salt and cellulose The mass ratio is 60 / 40, and the calcium carbonate filler content is a composite material of 30% by mass of cellulose.

Embodiment 2

[0025] 60 grams of cotton linters and 40 grams of 1-butyl-3-methylimidazolium chloride salt were mixed and stirred to obtain a muddy premix with uniform appearance. The resulting premix is ​​placed on an open mill, heated to 130° C. and stabilized for 10 minutes before mixing. After 5 minutes, 1-butyl-3-methylimidazolium chloride-cellulose with a cellulose content of 60 wt % is obtained. Binder. Add 3 grams, 6 grams, 9 grams of calcium carbonate powder respectively on the open mill subsequently, after continuing mixing for 5 minutes, add 3 grams, 6 grams, 9 grams of calcium carbonate powder respectively again, mixing 10 minutes. Then put the obtained material into a 5cm×7cm×0.1cm mold, put it in a flat vulcanizer, and press it at 100°C and 20MPa to obtain 1-allyl-3-methylimidazolium chloride salt and cellulose The mass ratio is 60 / 40, and the calcium carbonate filler content is the composite material of 10%, 20%, and 30% of the cellulose mass.

Embodiment 3

[0027] Mix wood fiber, bamboo fiber, hemp fiber after chopping, get 160 grams and 1-ethyl-3-methylimidazole acetate and 1-propyl-3-methylimidazole acetate mass ratio is 1: 40 g of the mixture of 1 was stirred to obtain an apparently homogeneous puree premix. The obtained premix was placed in an open mixer, and the temperature was raised to 150° C. and was stabilized for 10 minutes before mixing. After 5 minutes, ionic liquid-cellulose base materials with a cellulose content of 80 wt % were obtained. Then add 4 grams of silicon dioxide powder, and after kneading for 5 minutes, add 76 grams of silicon dioxide powder again, and knead for 10 minutes. Then put the obtained material into a 5cm×7cm×0.1cm mold, put it in a flat vulcanizer, and press it at 160°C and 30MPa to obtain the mass ratio of ionic liquid and cellulose respectively 20 / 80, silica The composite material has a filler content of 50% by weight of cellulose.

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Abstract

The invention discloses a p thermoplastic cellulose composite material and a preparation method thereof. The composite material comprises the following components in percentage by mass: 0.03-28.57% of functional filler, 14.29-69.98% of ionic liquid and the balance of cellulose. The ionic liquid is used as a plasticizer, and can destroy the intermolecular hydrogen bond of the cellulose and increase the free volume, thereby plastifying the cellulose. The preparation method comprises the following steps: plastifying the cellulose by using the ionic liquid as the plasticizer to obtain an ionic liquid-cellulose base material, and carrying out melt compounding with the functional filler. The thermoplastic cellulose composite material can be formed and processed repeatedly, and has high adjustability in selection and proportioning of the composite filler. Compared with the prior art, the method has the advantages of simple technique and high production efficiency, is more suitable for the industrialized production mode, overcomes the defect of single processing means and product form in the past cellulosic material, and widens the application range of the cellulosic material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a fiber material and a preparation method thereof, in particular to a cellulose-based composite material and a preparation method thereof. Background technique [0002] Cellulose is the most abundant natural polymer in nature. It has excellent mechanical properties, biocompatibility and renewability. It is rich in sources and low in price. It is considered to be one of the most potential substitutes for petroleum-based synthetic polymer materials. one. The development and application of cellulose materials is of great significance in coping with the oil crisis, improving environmental pollution, and achieving sustainable social and economic development. [0003] By introducing functional fillers into the cellulose composite material, the cellulose material can be endowed with more excellent and diverse properties. Solution processing is currently the main means of prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/02C08K3/36C08K3/26C08K3/22C08K3/04C08K7/24
Inventor 解孝林吴俊郭亚周兴平
Owner ZONYA PRINTING & PACKAGING CO LTD
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