A kind of plant modified polymeric putty adhesive and preparation method thereof

Abstract

The invention provides a putty adhesive for plant modified polymerization and a preparation method thereof. The putty adhesive is prepared by the following steps: by taking konjac and potatoes as main materials, respectively cleaning and removing impurities, weighing according to the mass ratio of 1:(2-3) after shelling; orderly adding a crosslinker, sodium carbonate and water after crushing and mixing, and reacting under 1-2 atmosphere at 100-130 DEG C for 20-40 minutes to form a mixed adhesive solution; orderly adding polyvinyl alcohol aqueous solution of which the concentration is 2%, a preservative and carboxymethyl cellulose to mix and stir, wherein 0.1-0.3 parts of crosslinkers, 0.1-0.3 parts of sodium carbonate, 180-220 parts of water, 10-25 parts of 2% polyvinyl alcohol aqueous solution, 0.11-0.21 parts of preservatives and 1-3 parts of carboxymethyl cellulose are added to per 100 parts of mixed plant raw materials; the obtained putty adhesive for plant modified polymerization takes natural plants as raw materials, and is free of poison, free of formaldehyde pollution, free of harm to a human body, low in cost, simple in procedure, and convenient to use.

Description

technical field [0001] The invention relates to a novel putty powder adhesive, in particular to a plant-modified polymerized putty adhesive and a preparation method thereof. Background technique [0002] Putty is a kind of building material used in a large amount in architectural decoration. It is a decoration material that can repair and smooth the wall surface to achieve a smooth and delicate effect. It is mainly composed of filler (calcium carbonate), binder (glue or powder), solvent ( water or other solvents) and additives (auxiliary). At present, the putty materials used for decoration mainly include on-site mixed putty powder (such as polyvinyl urea-formaldehyde glue + calcium carbonate powder + cooked rubber powder, etc.), finished water and type putty powder (putty powder + water), etc.; The matching putty powder is generally prepared by boiling polyvinyl alcohol, formaldehyde, urea, etc. at high temperature into a glue solution (some manufacturers specially manufac...

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Problems solved by technology

[0003] Adhesive is an indispensable part of putty mixing. It plays a decisive role in the strength, construction and durability of putty powder. The quality of adhesive determines the quality of putty powder. The existing adhesive There are mainly two kinds of liquid and powder. The powdery adhesive is commonly used tapioca starch or corn starch. Although tapioca starch has a strong bonding effect, if the amount added is large, it will affect the construction performance of the putty powder, and it is not easy to scrape. If the amount of addition is small, the bonding strength (adhesion) will not meet the requirements, which is not conducive to compounding; while corn starch has little effect on the bonding strength, the putty powder made with these two rubber powders will either have a short service life, It is easy to remove powder from empty drums, or the construction performance is poor; liquid adhesives are generally more effective than rubber powders in use, and are easy to use, but the existing liquid adhesives are troublesome in manufacturing process, high in cost, and difficult to process. Complex, formaldehyde pollution, low environmental performance

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