Chitin whisker/magnesium oxide whisker/biodegradable polyester composite material as well as preparation method and application thereof

A biodegradable polyester and magnesium oxide whisker technology, applied in the direction of magnesium oxide, etc., can solve the problems of insufficient mechanical strength and toughness, lack of osteoinductivity, and difficulty in live detection, achieving excellent comprehensive performance and avoiding non-infectious Inflammatory response, reducing the effect of acidic autocatalytic effect
CN105504715AActive Publication Date: 2016-04-20JINAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JINAN UNIVERSITY
Publication Date
2016-04-20

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Abstract

The invention belongs to the field of composite materials and discloses a chitin whisker / magnesium oxide whisker / biodegradable polyester composite material as well as a preparation method and an application thereof. The composite material comprises the following components in percentage by weight: 0.1-20% of chitin whisker, 0.1%-20% of magnesium oxide whisker and 60-99.8% of biodegradable polyester, wherein the chitin whisker is a natural high polymer polysaccharide whisker, the magnesium oxide whisker is an inorganic whisker, and biodegradable polyester is a class of synthetic high polymers. The ternary composite material is skillfully integrated with the advantages of a natural high polymer material, a synthetic high polymer material and an inorganic material; by adjusting the mass ratio of the chitin whisker to the magnesium oxide whisker, the reinforcing and toughening effects which are superior to the reinforcing and toughening effects of single chitin whisker or magnesium oxide whisker to a biodegradable polyester matrix can be obtained; and furthermore, a poly-dopamine layer modified on the surface of the whisker has excellent biocompatibility and osteogenic activity and can endow the composite material with relatively ideal bone tissue healing promoting capacity.
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Description

technical field

[0001] The invention belongs to the field of composite materials, and in particular relates to a chitin whisker / magnesia whisker / biodegradable polyester ternary composite material and its preparation and application. Background technique

[0002] Among many human diseases, bone trauma or defect has become a worldwide frequently-occurring and common disease, and the market demand for bone tissue repair materials is huge. The bone tissue repair materials currently used clinically include non-degradable materials and degradable materials. Among them, non-degradable materials cannot be degraded and absorbed in the process of bone tissue repair, and require a second operation to remove them, and the use of metal-based orthopedic internal fixation materials will also cause Stress shielding affects the healing of bone tissue and damages the surrounding bone tissue. Therefore, degradable bone repair materials have attracted much attention in recent years.

[0003] B...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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