CN1219004C - A kind of interior and exterior wall putty made of konjac flour and its production method and application - Google Patents

Abstract

The invention discloses a kind of putty used for interior and exterior wall decoration by using konjac fine powder and konjac processed leftover flying powder, its production method and its application. It is characterized in that a new type of binder for making putty is formed through chemical modification of konjac starch, and then the required putty is produced by cooperating with other raw materials; through the implementation of the invention, the product quality of the existing putty is significantly improved And the effect of use, it solves the serious pollution problem of the environment, especially the indoor environment, caused by the use of putty, which is widely existing at present. The putty can also be applied to other components or furniture that need to be decorated.

Description

A kind of interior and exterior wall putty made of konjac flour and its production method and application

                            

The invention belongs to the technical field of building wall decoration materials, and in particular relates to the production of putty for walls by using konjac flour, its production method and its application field.

Background technique

The function of wall putty is mainly to level the wall surface. It is a kind of grass-roots treatment material, and it is also a material with a large quantity and wide area that must be highly valued. In the past, because there was no national or industry standard for wall putty, it was customary to use only The flat wall shall prevail, and no one cares about its performance, so the composition of the putty is relatively chaotic, and the quality is difficult to guarantee.

In my country, wall putty mainly includes interior wall putty and exterior wall putty. In the past, architectural paint decoration for exterior walls generally did not use putty, but because the flatness of exterior walls generally does not meet the construction requirements, there are some projects using exterior wall putty. increase, but there are not many formed and high-quality products at present.

Before the present invention is made, wall putty mainly utilizes synthetic macromolecular polyvinyl alcohol and its formal glue to produce or allocate (seeing that Chinese invention patent publication number is CN 1216311A, CN1096526, CN1345902A, CN1073466A etc. disclosed documents), use above-mentioned The putty that method manufactures easily causes environmental pollution. In recent years, due to environmental and cost considerations, there have been reports of using natural materials as film-forming materials to develop putty for interior and exterior walls, mainly focusing on starch, flour, animal plasma, inorganic binders, etc. Similar inventions such as China Invention Patent Publication No. CN1344708A, CN1095081A, CN1290727A, CN1182108A, CN1296045A, CN1268534A, CN1066076A, CN1113252A, etc., but these inventions mostly directly adopt natural substances as film-forming materials. Although the production cost has been reduced, the performance of the product is poor and the quality It is not stable enough, and it is difficult to promote and apply it on a large scale.

Contents of Invention

The purpose of the present invention is to overcome the deficiencies of the prior art, utilize konjac starch, especially with konjac fine powder and/or processed leftovers---flying powder as raw material, form a kind of novel manufacturing interior and exterior wall putty by chemical modification The binder used, and then combined with other raw materials to produce putty suitable for interior and exterior wall treatment, in order to improve the quality and use effect of putty.

The present invention is realized through the following technical solutions:

A kind of putty for interior and exterior walls, said putty uses at least one konjac powder and/or flying powder as a raw material, and forms a putty binder through chemical modification, and the binder is combined with other components according to The proportioning of weight percent meter is as follows:

Konjac fine powder 0.3-3%, konjac powder 0.3-5%, water-soluble synthetic polymer substance 0.2-10%, modifier 0.2-3.0%, neutralizer 0.2-1%, dispersant 0.1-0.5%, Defoamer 0-0.3%, Ash Calcium Powder 0-40%, Talc Powder 5-25%, Shuangfei Powder 20-40%, Light Calcium Carbonate 10-20%, Thickener 0.1-3%, Strengthening Agent 0 -3%, coalescent 0-2%, the rest is water;

The raw materials are physically and chemically mixed to make a powder or paste putty.

The water-soluble synthetic polymer is selected from one or more of polyvinyl alcohol, polyvinyl acetate or polyvinylpyrrolidone; the modifier is selected from hydrochloric acid, nitric acid, phosphoric acid, borax, aldehyde crosslinking agent, Select one or more of them from sodium sulfate, hydrogen peroxide, potassium permanganate or potassium persulfate; the neutralizer selects one or more of them from ammonia, caustic soda, urea, melamine or phosphoric acid; The dispersant is selected from one or more of sodium tripolyphosphate, sodium hexametaphosphate, 5040, 3204, 5034 or PE100; the defoamer is selected from tributyl phosphate, silicone defoamer or 704 Select one or more of them; the thickener selects one or more of them from konjac gum, carrageenan, cellulose derivatives or cooked rubber powder; the reinforcing agent is short fiber, the The coalescent is selected from ethylene glycol, dibutyl phthalate or alcohol esters.

Make a kind of common interior wall putty, each component proportioning by weight percentage is as follows:

Konjac powder 0.3-1.5%, konjac powder 0.3-3%, polyvinyl alcohol 0.5-2%, hydrochloric acid 0.3-1.0%, caustic soda 0.5-1%, hydrogen peroxide 0.1-0.3%, sodium hexametaphosphate 0.1-0.5 %, tributyl phosphate 0.05-0.3%, ash calcium powder 10-15%, talcum powder 5-25%, Shuangfei powder 20-40%, light calcium carbonate 10-20%, cooked rubber powder 0.1-3%, The rest is water.

Make a kind of water-resistant interior wall putty, the proportioning of each component by weight percentage is as follows:

Konjac powder 0.3-1.5%, polyvinyl alcohol 1-2%, hydrochloric acid 0.3-1.0%, ammonia 0.7-1%, hydrogen peroxide 0.1-0.3%, 5040 0.1-0.3%, silicone defoamer 0.05-0.2%, Ash calcium powder 10-40%, talcum powder 5-10%, Shuangfei powder 20-30%, light calcium carbonate 10-20%, konjac gum 0.3-3%, short fiber 0.3-3%, and the rest is water.

Make a kind of washable and anti-aging exterior wall putty, the proportioning of each component by weight percentage is as follows:

Konjac fine powder 2-3%, konjac flying powder 0.3-3%, polyethyl acetate 0.5-2%, phosphoric acid 0.3-3.0%, caustic soda 0.5-1%, ammonium persulfate 0.1-0.3%, sodium hexametaphosphate 0.1-0.5%, 704 0.05-0.3%, ash calcium powder 10-40%, talc powder 5-25%, double fly powder 20-40%, hydroxyethyl cellulose 0.1-3%, short fiber 0.3-3%, The rest is water.

The interior and exterior wall putty of the present invention is made into slurry putty, produced according to the following steps:

A, utilize konjac fine powder and/or konjac flying powder to make konjac glucomannan/water-soluble synthetic polymer modified hydrosol as the binder of slurry putty;

B. Weigh the hydrosol, fly powder glue, dispersant, defoamer and filler prepared in step A in proportion to obtain a mixed solution;

C. Add the film-forming aid and thickener to the mixed liquid obtained in step B, then add the short fibers, and mix the slurry to obtain the finished product.

The exterior wall putty of the present invention is made into slurry, and the putty is produced according to the following steps:

Add 200 kg of water to the reaction kettle, heat it to 55-100°C, and start stirring; put in 2-20 kg of water-soluble synthetic polymer material, and keep the temperature at 80-95°C until it is completely dissolved; put in konjac fine powder and/or konjac Flying powder 1-10 kg, NaClO 0.05-0.5 kg, after reacting for 10 minutes, adjust the temperature to 85-93 ℃, put in alkyd resin; react for an appropriate time until konjac glucomannan and water-soluble synthetic polymer substances Wear it to form an IPN structure; then add a neutralizer, neutralize for 10-50 minutes, and cool it for use. This is konjac glucomannan/water-soluble synthetic polymer modified water sol, which is used as a binder for slurry putty.

The present invention includes the application of the putty in exterior walls and interior and exterior wall putty. Obviously, according to the above concept, the putty of the present invention can be applied in other building components, metal or non-metal components and in furniture such as. Likewise, any insubstantial adjustments to the above-mentioned putty formula and processing technology all belong to the scope of protection of the present invention.

The technological process of powdery interior and exterior wall putty includes:

Fully premix the water-soluble polymer synthetic material (binder), konjac fine powder and/or konjac fly powder, enhancer, thickener, modifier, and dispersant in a premix mixer, and place 0.5 -5 hours, enter the dry powder putty fully enclosed mixing mixer, put in the neutralizer and filler, fully stir and evenly discharge the material, and the package is the finished product.

Attached drawings and descriptions:

Fig. 1: is the technological process schematic diagram of the present invention.

The present invention has the following positive effects:

Konjac interior and exterior wall putty is a new type of chemical building material with natural polymer konjac glucomannan as the main film-forming substance. The IPN structure formed has incomparable performance with a single polymer, thus making the cost and performance of interior and exterior wall putty double guaranteed. It has great prospects for industrial development and may replace the currently widely used 107 glue putty, and solve the widespread problem of serious pollution of the environment, especially the indoor environment, by putty.

The present invention can also utilize a large amount of processed konjac fine powder and konjac-added leftovers-flying powder, which has far-reaching significance for accelerating the development and utilization of konjac resources, which are rich in specialty plants in poor mountainous areas of our country, getting rid of poverty and becoming rich in mountainous areas, and strengthening environmental protection. .

Detailed ways

Example 1

Ordinary interior wall putty formula (based on 1000 kg of putty ingredients):

In terms of weight percentage: add 5 kg of konjac powder, 3 kg of konjac powder, 5 kg of polyvinyl alcohol, 4 kg of hydrochloric acid, 5 kg of caustic soda, 2 kg of hydrogen peroxide, 2 kg of sodium hexametaphosphate, and 0.52 kg of tributyl phosphate , Ash calcium powder 120 kg, talc powder 80 kg, double fly powder 40 kg, light calcium carbonate 100 kg, cooked rubber powder 0.3 kg, water 630 kg.

Production method: Produced according to the above slurry putty processing method.

The putty product prepared by this embodiment complies with the standards of the People's Republic of China interior wall putty industry standard (JG/13409-1998) for common interior wall putty, and the dry strength is 0.7MPa.

Example 2

Water-resistant interior wall putty formula (according to processing 1000 kg ingredients):

In terms of weight percentage: 10 kg of konjac powder, 10 kg of polyvinyl alcohol, 5 kg of hydrochloric acid, 8 kg of ammonia, 3 kg of hydrogen peroxide, 3 kg of 5040, 0.5 kg of organic silicon defoamer, 250 kg of ash calcium powder, 100 kg of talcum powder kg, 30 kg of Shuangfei powder, 100 kg of light calcium carbonate, 5 kg of konjac gum, 5 kg of short fiber, and 471 kg of water.

Preparation method: produce slurry putty by the processing method of embodiment 1.

The putty made in this embodiment complies with the standards of the People's Republic of China for interior wall putty industry standards (JG/13409-1998) for water-resistant interior wall putty, with a dry strength of 1.3 MPa and a wet strength of 0.6 MPa.

Example 3

External wall putty formula (based on processing 1000 kg of ingredients):

In terms of weight percentage: 20 kg of konjac fine powder, 18 kg of konjac powder, 12 kg of polyvinyl acetate, 8 kg of phosphoric acid, 5 kg of caustic soda, 3 kg of ammonium persulfate, 2 kg of sodium hexametaphosphate, 0.51 kg of 704, ash Calcium powder 300 kg, talcum powder 50 kg, double fly powder 300 kg, hydroxyethyl cellulose 4 kg, short fiber 12 kg, water 266 kg.

Preparation method: produce slurry putty with the processing method of embodiment 1.

Implementation effect of the present invention:

Performance comparison of konjac starch before and after chemical modification Before chemical modification After chemical modification Freeze-thaw resistance, scrub resistance, sub-alkali resistance (48h) construction Agglomeration, water separation ≥ 35 foaming, powder falling, loss of gloss and discoloration No difficulty but easy to fall off when scraping, No caking, no separation 6000 No foaming, no powder shedding, slight loss of gloss and discoloration allowed No difficulty when scraping and rarely falling Adhesive strength (MPa) (dry) (wet) 0.230.11 1.310.64 Water resistance (96h) Blistering, Chalking, Loss of Gloss and Discoloration No foaming, no powder shedding, slight loss of gloss and discoloration allowed

Claims (8)

1, a kind of inner and external wall putty is characterized in that, at least with a kind of konjaku powder and/or to fly powder be raw material, forms water-soluble binder by chemical modification in the described putty, and this binding agent cooperates proportioning by weight percentage as follows with other components:

Konjaku powder 0.3-3%, fry starch of konjak 0.3-5%, water-soluble synthetic macromolecule material 0.2-10%, properties-correcting agent 0.2-3.0%, neutralizing agent 0.2-1%, dispersion agent 0.1-0.5%, defoamer 0-0.3%, grey calcium powder 0-40%, talcum powder 5-25%, dry powder 20-40%, light calcium carbonate 10-20%, thickening material 0.1-3%, toughener 0-3%, film coalescence aid 0-2%, all the other are water;

Described raw material is carried out physics and chemical mixing, make the putty of pulvis or paste.

2, putty according to claim 1 is characterized in that described water-soluble synthetic macromolecule selects wherein one or more from polyvinyl alcohol, Vinyl Acetate Copolymer or polyvinylpyrrolidone; Described properties-correcting agent is selected wherein one or more from hydrochloric acid, nitric acid, phosphoric acid, borax, aldehydes linking agent, sodium sulfate, hydrogen peroxide, potassium permanganate or Potassium Persulphate; Described neutralizing agent is selected wherein one or more from ammoniacal liquor, sheet alkali, urea, trimeric cyanamide or phosphoric acid; Described dispersion agent is selected wherein one or more from tripoly phosphate sodium STPP, Sodium hexametaphosphate 99; Described defoamer is selected wherein one or more from tributyl phosphate, silicone antifoam agent; Described thickening material is selected wherein one or more from konjak gum, carrageenin, derivatived cellulose or ripe rubber powder; Described toughener is a staple fibre; Described film coalescence aid is selected from ethylene glycol, dibutyl phthalate or alcohol ester.

3, putty according to claim 1 and 2 is characterized in that described putty is inner wall putty, and the each component proportioning is as follows by weight percentage:

Konjaku powder 0.3-1.5%, fry starch of konjak 0.3-3%, polyvinyl alcohol 0.5-2%, hydrochloric acid 0.3-1.0%, sheet alkali 0.5-1%, hydrogen peroxide 0.1-0.3%, Sodium hexametaphosphate 99 0.1-0.5%, tributyl phosphate 0.05-0.3%, grey calcium powder 10-15%, talcum powder 5-25%, dry powder 20-40%, light calcium carbonate 10-20%, ripe rubber powder 0.1-3%, all the other are water.

4, putty according to claim 1 and 2 is characterized in that described putty is water-fast inner wall putty, and the each component proportioning is as follows by weight percentage:

Konjaku powder 0.3-1.5%, polyvinyl alcohol 1-2%, hydrochloric acid 0.3-1.0%, ammoniacal liquor 0.7-1%, hydrogen peroxide 0.1-0.3%, tripoly phosphate sodium STPP 0.1-0.3%, silicone antifoam agent 0.05-0.2%, grey calcium powder 10-40%, talcum powder 5-10%, dry powder 20-30%, light calcium carbonate 10-20%, konjak gum 0.3-3%, staple fibre 0.3-3%, all the other are water.

5. putty according to claim 1 and 2 is characterized in that: described putty is exterior wall putty, and the each component proportioning is as follows by weight percentage:

Konjaku powder 2-3%, fry starch of konjak 0.3-3%, poly-vinyl acetic monomer 0.5-2%, phosphoric acid 0.3-3.0%, sheet alkali 0.5-1%, Ammonium Persulfate 98.5 0.1-0.3%, Sodium hexametaphosphate 99 0.1-0.5%, silicone antifoam agent 0.05-0.3%, grey calcium powder 10-40%, talcum powder 5-25%, dry powder 20-40%, Natvosol 0.1-3%, staple fibre 0.3-3%, all the other are water.

6, a kind of method for preparing putty as claimed in claim 1 or 2 is characterized in that wherein inner and external wall putty is fabricated to pulpous state, produces according to the following steps;

A, the Rhizoma amorphophalli glucomannan/water-soluble synthetic macromolecule modified water colloidal sol that utilizes konjaku powder and/or fry starch of konjak making to use as the binding agent of pulpous state putty;

B, in the modified water colloidal sol of A step preparation, add in proportion and fly arogel, dispersion agent, defoamer and filler, obtain mixed solution;

C, in the mixed solution that step B obtains, add described film coalescence aid and thickening material, add described staple fibre again, mix this slip, obtain described finished product.

7, preparation method according to claim 6 is characterized in that wherein exterior wall putty is fabricated to pulpous state, produces according to the following steps:

A, in reactor, add 200 kg of water, be heated to 55-100 ℃, begin to stir;

B, the water-soluble synthetic macromolecule material 2-20 kilogram of input keep temperature to dissolve fully until it for 80-95 ℃;

C, input konjaku powder and/or fry starch of konjak 1-10 kilogram, properties-correcting agent NaClO0.05-0.5 kilogram reacted after 10 minutes, after the adjustment temperature is 85-93 ℃, dropped into Synolac; The reaction appropriate time forms the IPN structure to Rhizoma amorphophalli glucomannan and the complete IPN of water-soluble synthetic macromolecule material;

D, drop into neutralizing agent, neutralization reaction 10-50min cools off stand-byly, and this is Rhizoma amorphophalli glucomannan/water-soluble synthetic macromolecule modified water colloidal sol, as the binding agent of pulpous state putty.

8, the purposes of the described putty of claim 1 is characterized in that, the application in exterior wall putty and inner and external wall putty.

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