CN106318178A - Inorganic - organic composite coating for weaving handicraft with stretch and aging resistance - Google Patents

Abstract

The invention discloses an inorganic - organic composite coating for weaving handicraft with stretch and aging resistance. The coating combines aqueous organic paint with the inorganic coating and produces an inorganic- organic composite coating with good film-forming property and barrel property. The inorganic film-forming agent used in this composite coating is the lithium metasilicate composite gelatine powder through the hydrolysis reaction of nanogate carbon sol, polyacrylamide and Upsilon- (2,3-Glycidoxypropyl) Propyltrimethoxysilane, which is well dispersed in the resin emulsion, and improves the defects of easy cracking for the conventional lithium silicate film-forming agent film. And the film-forming agent blended with hyperbranched polyurethane dispersions and natural latex has a higher reactivity and can form the coating with better stability, which has the obvious advantages of improving the stability of film. The coating can form the non-toxic, dense, anti-aging and hydrophobic film with good tensile deformation performance on the surface of weaving crafts and could enhance the ornamental value and use life of crafts, economical and practical.

Description

The baskets craft inorganic-organic compound coating that a kind of stretch-proof is aging

Technical field

The present invention relates to aqueous artware paint technical field, particularly relate to the aging baskets craft of a kind of stretch-proof and use Inorganic-organic compound coating.

Background technology

Weaving is one of the most ancient handicraft of the mankind, and the stem of plant, leaf, skin through processing, are used multiple volume by it Knitting maneuver and weave various daily living articles and artware, this series products has natural, pure and fresh, unique artistic style, economical Being worth and also step up, market demand is bigger.

The natural braided material used due to baskets craft, is affected relatively big by extraneous factor, and do not properly protect measure The most destroyed, affect aesthetic property and the service life of product, apply more be also the most direct means of defence be on surface Coating coating, but it is different from most products, and the requirement of coating in addition to environmental protection, be it is also desirable to have by baskets craft Relatively low production cost, IMAGE, it is prone to cleaning etc. performance.Inorganic coating is that a class is with silicate, Ludox etc. Inorganic material is the coating of main film forming substance, and it has the advantages such as the good feature of environmental protection, antibacterial and mouldproof, weather-proof, fire protection flame retarding, Being more suitable for baskets craft use than organic coating, but it also has the shortcomings such as film-formation result is the best, easy to crack, use is subject to To limiting.The performance of inorganic/organic composite coating inquired in " preparation of Lithium metasilicate base composite coating and performance study " literary composition, system The composite coating filming performance obtained is improved, and adhesive force and intensity are the most superior, but this coating is mainly used in sand On slurry base material, if be applied on braided material to exist sophistication not, poor sealing performance etc. shortcoming, need to do further Improvement.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that the baskets craft use that a kind of stretch-proof is aging Inorganic-organic compound coating.

The present invention is achieved by the following technical solutions:

The baskets craft inorganic-organic compound coating that a kind of stretch-proof is aging, this coating is by the raw material system of following weight portion Become: natural emulsion 5-8, solid content be hyperbranched aqueous polyurethane dispersion 25-30 of 40-50%, nano carbon sol 1-2, poly-third Acrylamide 0.2-0.3, γ-(2,3-glycidoxy) propyl trimethoxy silicane 1-2, concentration are the hydrogen-oxygen of 0.5-1.5mol/L Change lithium aqueous solution 12-15, dehydrated alcohol 30-40, defoamer 0.1-0.2.

The preparation method of the baskets craft inorganic-organic compound coating that described a kind of stretch-proof is aging is as follows:

(1) first by dehydrated alcohol and lithium hydroxide aqueous solution mixing and stirring, it is subsequently added γ-(2,3-glycidoxy) third Base trimethoxy silane, puts into nano carbon sol, polyacrylamide, sonic oscillation reaction 40-after hybrid reaction 30-50min 50min, dried after reaction end post-heating to 50-60 DEG C of aged gel 4-5h, the xerogel of gained grinds, mistake 600-800 mesh sieve is standby；

(2) by hyperbranched aqueous polyurethane dispersion, natural emulsion mixing high-speed stirred dispersion 40-50min, it is subsequently added step (1) material prepared, continues dispersed with stirring 20-30min, is eventually adding other leftover materials, continues dispersed with stirring 20-30min By filtering, packing and get final product.

Inorganic coating is used in combination by the present invention with aqueous organic coating, has prepared one and has had good filming performance and prevent Protecting the inorganic-organic compound coating of performance, the inorganic film former used in this composite coating is through nano carbon sol, polypropylene Amide and the hydrolyzed modified Lithium metasilicate pluralgel powder of γ-(2,3-glycidoxy) propyl trimethoxy silicane, it is in tree Energy fine dispersion in fat liquor, improves the conventional crisp defect easy to crack of Lithium metasilicate film former film, and divides with super branched polyurethane The organic film former of a prose style free from parallelism and natural emulsion allotment has higher reactivity, and the paint stability of formation is more preferable, Improving membranous layer stability aspect advantage to highlight, this kind of coating can form nontoxic, fine and close, stretcher strain on baskets craft surface Good, ageing-resistant, hydrophobic film layer, improves ornamental value and the service life of artware, economical and practical.

Detailed description of the invention

The baskets craft Inorganic whisker coating that a kind of stretch-proof is aging, this coating is by the raw material of following weight portion Make: natural emulsion 5, solid content be 40% hyperbranched aqueous polyurethane dispersion 25, nano carbon sol 1, polyacrylamide 0.2, γ-(2,3-glycidoxy) propyl trimethoxy silicane 1, concentration are the lithium hydroxide aqueous solution 15 of 0.5mol/L, nothing Water-ethanol 30, defoamer 0.1.

Its preparation method is as follows:

(1) first by dehydrated alcohol and lithium hydroxide aqueous solution mixing and stirring, it is subsequently added γ (2,3 glycidoxy) propyl group Trimethoxy silane, puts into nano carbon sol, polyacrylamide, sonic oscillation reaction 40min, reaction after hybrid reaction 30min Terminating post-heating to dried after 50 DEG C of aged gel 4h, the xerogel of gained grinds, and crosses 600 mesh sieves standby；

(2) by hyperbranched aqueous polyurethane dispersion, natural emulsion mixing high-speed stirred dispersion 40min, it is subsequently added step (1) The material of preparation, continues dispersed with stirring 20min, is eventually adding other leftover materials, after continuing dispersed with stirring 20min through filtering, Pack and get final product.

Take this coating to be coated on bamboo chip, treat it to be fully cured after drying to follow relevant criterion to carry out performance test, test Result is:

Project	Result
		Flatness	Smooth
Hardness	4H
		Adhesive force	100/100
Glossiness	62
		Acid resistance 5% hydrochloric acid	Without exception
Alkali resistance 5% sodium carbonate	Without exception
		Weatherable 5000h	Without exception

The mechanical property of the coating formed is:

Hot strength: 19.4MPa, elongation at break: 386%.

Claims (2)

1. the baskets craft inorganic-organic compound coating that a stretch-proof is aging, it is characterised in that this coating is by following heavy The raw material of amount part is made: natural emulsion 5-8, solid content are hyperbranched aqueous polyurethane dispersion 25-30 of 40-50%, nano-sized carbon Colloidal sol 1-2, polyacrylamide 0.2-0.3, γ-(2,3-glycidoxy) propyl trimethoxy silicane 1-2, concentration are 0.5- The lithium hydroxide aqueous solution 12-15 of 1.5mol/L, dehydrated alcohol 30-40, defoamer 0.1-0.2.

The preparation side of the baskets craft inorganic-organic compound coating that a kind of stretch-proof the most as claimed in claim 1 is aging Method, it is characterised in that its preparation method is as follows:

(1) first by dehydrated alcohol and lithium hydroxide aqueous solution mixing and stirring, it is subsequently added γ-(2,3-glycidoxy) third Base trimethoxy silane, puts into nano carbon sol, polyacrylamide, sonic oscillation reaction 40-after hybrid reaction 30-50min 50min, dried after reaction end post-heating to 50-60 DEG C of aged gel 4-5h, the xerogel of gained grinds, mistake 600-800 mesh sieve is standby；

(2) by hyperbranched aqueous polyurethane dispersion, natural emulsion mixing high-speed stirred dispersion 40-50min, it is subsequently added step (1) material prepared, continues dispersed with stirring 20-30min, is eventually adding other leftover materials, continues dispersed with stirring 20-30min By filtering, packing and get final product.