Preparation method of plant-oil-based polyurethane composites modified by dual-layer cage type silsesquioxane

A technology of silsesquioxane and modified vegetable oil, which is applied in the field of preparation of double-layer cage silsesquioxane modified vegetable oil-based polyurethane composite materials, can solve the problems of difficult biodegradation and toxicity, and achieve thermal stability And the effect of water resistance improvement
CN105860018AActive Publication Date: 2016-08-17JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2016-08-17

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Abstract

The invention discloses a preparation method of plant-oil-based polyurethane composites modified by dual-layer cage type silsesquioxane, and belongs to the technical field of polymer composites. Plant-oil-based polyurethane is synthesized with plant-oil-based polyhydric alcohol and isophorone diisocyanate (IPDI) as the raw materials, and a series of plant-oil-based polyurethane composites are synthesized with organic-inorganic hybrid material dual-layer cage type silsesquioxane (DDSQ) as the modifier. Environment-friendly renewable plant-oil-based polyhydric alcohol serves as the raw material, the composites are chemically modified by dual-layer silsesquioxane of a regular cage type structure for overcoming the defects of plant-oil-based polyurethane, and the thermal performance, mechanical performance and water resistance of the modified composites are improved to different extents. Compared with ordinary plant-oil-based polyurethane, the initial decomposition temperature of the composites is increased by 31 DEG C, and the tensile strength is improved by nearly four times.
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Description

technical field

[0001] The invention relates to a preparation method of a double-layer cage-type silsesquioxane modified vegetable oil-based polyurethane composite material, which belongs to the technical field of polymer composite materials. Background technique

[0002] As one of the six major synthetic materials in the world today, polyurethane has good physical and chemical properties, making it widely used in the preparation of soft and hard foams, coatings, adhesives, sealants, elastomers, leather and fibers. However, the synthetic raw materials of traditional polyurethane come from petrochemical products, which will inevitably bring about some environmental and product safety problems in the production process, such as toxicity and refractory biodegradation. In contrast, vegetable oil is recognized as the best substitute for petroleum raw materials because of its cheapness, availability, renewability and biodegradability. At the same time, the proposal of a variety o...

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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