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Polypara dioxocyclohexanone / montmorillonite nano-composite material and its preparation method

A technology of polydioxanone and nanocomposite materials, which is applied in the field of polydioxanone/montmorillonite nanocomposite materials and its preparation, and can solve the problems of slow crystallization speed of polymerization products, high production cost and limited Issues such as promotion and application

Active Publication Date: 2005-08-10
成都普利铭医用材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it will be used as general-purpose plastics to popularize and apply but there is bigger obstacle: the one, its monomer price is higher, and production cost is comparatively expensive; Usually, the requirements for monomer purity, catalyst activity and polymerization reaction conditions are very high, and the polymerization time is long, the crystallization speed of the polymerization product is slow, the melt strength is low, and molding processing is difficult
These obstacles limit its application as a general-purpose plastic

Method used

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  • Polypara dioxocyclohexanone / montmorillonite nano-composite material and its preparation method
  • Polypara dioxocyclohexanone / montmorillonite nano-composite material and its preparation method
  • Polypara dioxocyclohexanone / montmorillonite nano-composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) Place 20 g of Na-montmorillonite with a total cation exchange capacity of 100 meq / 100 g in 500 ml of distilled or deionized water, stir at high speed for 1 hour to form a stable suspension; then let it stand for 0.5 hours, and filter it with 400 mesh Cloth is used to filter the suspension to obtain the filtrate, which is set aside; dissolve 4g of octadecyltrimethylammonium chloride in 25ml of distilled water; heat the above filtrate to 50°C, add octadecyltrimethylammonium chloride solution, and stirred at 50°C for 10 hours to carry out ion exchange; then naturally cooled to room temperature, suction filtered, and repeatedly washed with distilled water several times, until no chloride ions were detected in the filtrate with 1mol / L silver nitrate solution; Finally, vacuum-dry at 50° C. for 20 hours until the montmorillonite has a constant weight, and grind it into a powder smaller than 100 microns.

[0014] (2) 100 g of p-dioxanone monomer and 3 g of organic montmoril...

Embodiment 2

[0016] (1) Put 20 g of H-montmorillonite with a total capacity of cation exchange of 80 meq / 100 g in 500 ml of distilled or deionized water, stir at high speed for 1 hour to form a stable suspension; Filter the suspension to obtain the filtrate for later use; dissolve 4g of octadecyltrimethylammonium chloride in 25ml of distilled water; heat the above-mentioned filtrate to 60°C, and add the octadecyltrimethylammonium chloride solution dropwise , and stirred at 60°C for 20 hours to carry out ion exchange; then naturally cooled to room temperature, suction filtered, and repeatedly washed with distilled water for several times, until no chloride ions were detected in the filtrate with 1mol / L silver nitrate solution; finally Vacuum dry at 50° C. for 20 hours until the montmorillonite has a constant weight, and grind it into a powder smaller than 100 microns.

[0017] (2) 100 g of p-dioxanone monomer and 5 g of organic montmorillonite prepared above were added successively into a r...

Embodiment 3

[0019] (1) Place 20 g of Mg-montmorillonite with a total cation exchange capacity of 120 meq / 100 g in 500 ml of distilled or deionized water, stir at high speed for 1 hour to form a stable suspension; Filter the suspension to obtain the filtrate for later use; dissolve 4g of octadecyltrimethylammonium chloride in 25ml of distilled water; heat the above-mentioned filtrate to 70°C, add the octadecyltrimethylammonium chloride solution dropwise , and stirred at a constant temperature of 70°C for 15 hours to carry out ion exchange; then naturally cooled to room temperature, suction filtered, and repeatedly washed with distilled water for several times, until no chloride ions were detected in the filtrate with 1mol / L silver nitrate solution; finally Vacuum dry at 50° C. for 20 hours until the montmorillonite has a constant weight, and grind it into a powder smaller than 100 microns.

[0020] (2) 100 g of p-dioxanone monomer and 10 g of organic montmorillonite prepared above were add...

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Abstract

A poly-p-dioxycyclohexanone / montmorillonite nano-composition is prepared from poly-P-dioxycyclohexanone and montmorillonite nanoparticles through proportionally mixing, stirring, heating, adding catalyst and reacting. Another preparing process is also disclosed. Said nano-composition features high mechanical and thermal performance, low reaction condition and high molecular weight.

Description

1. Technical field [0001] The invention belongs to the technical field of polymer and inorganic nano filler composite material and its preparation, and in particular relates to a polydioxanone / montmorillonite nano composite material and a preparation method thereof. 2. Background technology [0002] Polydioxanone (PPDO) not only has excellent biodegradability, bioabsorbability and biocompatibility, but also has good flexibility. It has been used in biomedical materials and has broad development prospects. But it will be used as general-purpose plastics to popularize and apply but there is bigger obstacle: the one, its monomer price is higher, and production cost is comparatively expensive; Usually, the requirements for monomer purity, catalyst activity and polymerization reaction conditions are very high, and the polymerization time is long, the crystallization speed of the polymerization product is slow, the melt strength is low, and molding processing is difficult. These ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G6/00C08K3/34C08L61/02
Inventor 王玉忠黄福云杨科珂汪秀丽周茜丁颂东郑长义
Owner 成都普利铭医用材料科技有限责任公司
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