Water-soluble polyurethane latex adhesive with porous network formed by 'core-shell' structure

A water-based polyurethane and adhesive technology, which is applied in the direction of graft polymer adhesives, adhesives, adhesive types, etc., can solve the problem of PU emulsion stability, self-thickening, solid content, and insufficient gloss retention. , toughness, wear resistance, weather resistance, water resistance, poor chemical resistance, etc.
CN1355267AInactive Publication Date: 2002-06-26ηŽ‹η”³
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ηŽ‹η”³
Publication Date
2002-06-26
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

An acrylic acid modified polyurethane adhesive with networked "core-shell" structure is prepared through LIPN technique and seed emulsion polymerization. Its latex granularity is adjustable for distrilution in 20-200 mm. Its advantages include high adhesion, excellent resistance to fatigue, impact and abrasion, and wide application range including pressure-sensing adhesive, paint for fabric and leather, high-molecular medical material, passive-sensing package for high energy explosive, etc.
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Description

Technical field:

[0001] The invention relates to an interpenetrating network waterborne polyurethane latex adhesive with a "core-shell" structure, belonging to the technical field of new adhesives. Background technique:

[0002] Polyurethane (PU) emulsion uses water as the dispersion medium, has the advantages of no pollution to the environment, low cost of non-combustibility, etc., and is widely used in the fields of coatings and adhesives. In recent years, the research on PU emulsion has been more active, but the research on the applied products focused on leather finishing agents, adhesives, textile coatings and slow-release isolation coating materials is less. Compared with their solvent-based products, polyacrylate (PA) emulsion and polyurethane (PU) emulsion have the advantages of being cheap, safe, non-flammable, non-toxic, and non-polluting. Therefore, they are widely used in coatings, adhesives, inks, and fabric finishes. be widely used. However, the problems of p...

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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