Method for preparing polyurethane hybridization material for hydroxyl-containing filler

A hybrid material, polyurethane technology, applied in the field of material science and technology, can solve the problems of material mechanical properties decline, weaken the intermolecular force, etc., and achieve the effect of low cost, excellent strength and simple process
CN102558828AInactive Publication Date: 2012-07-11SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing a polyurethane hybridization material for a hydroxyl-containing filler. The method comprises the following steps of: synthesizing polymer polyalcohol and isocyanate to form a polyurethane prepolymer of which the end group is isocyanato (-NCO), and mixing the polyurethane prepolymer with an inorganic filler of which the surface contains hydroxyl (-OH) fully; and reacting -OH on the surface of the inorganic filler and -NCO at the chain end of the polyurethane prepolymer at a certain temperature to prepare the polyurethane hybridization material for the hydroxyl-containing filler, which has excellent performance. According to the method, dihydric alcohol or diamine chain extenders are not needed to be added in the preparation process, and the hydroxyl-containing inorganic filler achieves an effect of the chain extenders and cross-linking agents. According to the method, particles of the inorganic filler are dispersed uniformly and not easy to agglomerate, and an interface between the inorganic particles and a polyurethane matrix is high in bonding; and the material has the characteristics of high strength and elasticity, abrasion resistance, heat resistance, oil resistance, solvent resistance and the like, and the preparation process is simple and low in cost.
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Description

technical field

[0001] The invention relates to a preparation method of a polyurethane hybrid material containing hydroxyl filler. Specifically, it relates to the use of fillers containing hydroxyl groups on the surface to prepare polyurethane hybrid materials containing hydroxyl fillers and products thereof through an in-situ reaction method. The invention belongs to the field of material science and technology. Background technique

[0002] Polyurethane is a multifunctional material with excellent comprehensive properties, such as excellent mechanical properties, elasticity, wear resistance and low temperature performance, good resistance to organic solvents, wide range of performance adjustments, good molding process performance, etc., in many There are a wide range of applications in technical fields such as foam plastics, coatings, elastomers, adhesives, fibers and composite materials.

[0003] Polyurethane elastomers are typically prepared using polymer polyols, diis...

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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