CN101007721A - Multifunctional additive for insulating dry-mixed motar - Google Patents

Abstract

The invention discloses a multifunctional additive of thermal insulation dry-mixing slurry, which comprises the following parts: sodium carboxymethylcellulose, polyvinyl alcohol powder, urea-formaldehyde resin, polyethylene oxide (PEO), alta-mud and wood cellulose. The additive possesses even dispersion, which saves cost and protects environment.

Description

Multifunctional additive for insulating dry-mixed motar

Technical field

The present invention relates to the chemical building material field.

Background technology

Exterior-wall heat insulation dry-mixed mortar series product are that the spirit of reforming and promote energy saving building in recent years according to national materials for wall grows up.Though and no matter present lagging material a multitude of names on the market in which kind of lagging material, all be unable to do without tackiness agent, water-holding agent, anticracking agent etc.Generally adopt polyvinyl alcohol 107 serial glue or redispersable latex powder to be aided with polymeric articles such as starch ethers in the market and make thickening material, water-holding agent, binding agent, but because of determined by these chemical products essence the subject of knowledge and the object of knowledge limitations and heat-preserving dry-mixed mortar filling-material structure, problems such as the cohesiveness that should possess in the mortar, thickening property, water-retentivity, application property can not satisfy, thereby also not assurance of quality product, and cost is also higher.

Summary of the invention

The objective of the invention is to, provide a kind of and be aided with by several macromolecular materials that excellent property, environmental protection and energy saving, technology that the auxiliary agent scientific formula forms are simple, cheap, easy to use, the multifunctional additive for insulating dry-mixed motar of extensive market.Above-mentioned purpose can be realized by following prescription and production technique.

1, component and content (by weight percentage) are:

Cellulose sodium carboxymethyl 40-50%

Pva powder 10-15%

Urea-formaldehyde resin 30-45%

Polyoxyethylene 0.5-1%

Wilkinite 4-5%

Lignocellulose 0.2-0.5%.

Optimum formula of the present invention is:

Cellulose sodium carboxymethyl 45%

Pva powder 15%

Urea-formaldehyde resin 35%

Polyoxyethylene 0.7%

Wilkinite 4%

Lignocellulose 0.3%.

2, production technique is as follows:

Each is weighed in proportion and puts into the totally enclosed mixing machine and do stirring after about 15-20 minute with cellulose sodium carboxymethyl, pva powder, urea-formaldehyde resin, polyoxyalkylene (PEO), wilkinite, lignocellulose, promptly becomes finished product---multifunctional additive for insulating dry-mixed motar.

3, the advantage of multifunctional additive for insulating dry-mixed motar and effect:

This additive is a white powder.Have be dissolved in cold water, good dispersity rapidly, consumption is little, cohesiveness is strong, the thickening water conservation is effective, stable performance, nontoxic, harmless, energy-conserving and environment-protective, cheap, pollution-free, the no three wastes in easy to use, the production process, and distinguishing feature such as technology is simple.The alternative redispersable latex powder of this product, Mierocrystalline cellulose and starch ethers add it in heat-preserving dry-mixed mortar to, can improve cohesiveness, water-retentivity, workability, application property and the anti-fragility of mortar greatly, and the mortar product cost is reduced significantly.This product also can be used for granular polystyrene rubber cement, styrofoam lagging material, the polyphenyl fields such as brushing gypsum of plastering of plastering except that being widely used in heat-preserving dry-mixed mortar.Because this additive excellent combination property, it can be compatible with any chemical colloid and filler, in the said products, need not add under the situation of other polymer adhesive and thickening water-holding agent, can realize bonding, water conservation, the application property of product, and can strengthen the multiple effects such as anti-fragility of product, and cost also can descend about 1/3rd, and its application prospect is very good.

Embodiment:

Introduce two embodiment of this additive below:

Embodiment 1: if produce 100 kilograms of multifunctional additive for insulating dry-mixed motar, then respectively cellulose sodium carboxymethyl 50 kilograms (50%), pva powder 15 kilograms (15%), urea-formaldehyde resin 30 kilograms (30%), polyoxyethylene (PEO) 0.8 kilogram (0.8%), wilkinite 4 kilograms (4%) and lignocellulose 0.2 kilogram (0.2%) are put into mixing machine dried be mixed even (mixed about 20 minutes) finished product.

Embodiment 2: if produce 520 kilograms of multifunctional additive for insulating dry-mixed motar, then respectively cellulose sodium carboxymethyl 208 kilograms (40%), pva powder 52 kilograms (10%), urea-formaldehyde resin 234 kilograms (45%), polyoxyethylene (PEO) 2.6 kilograms (0.5%), wilkinite 20.8 kilograms (4%) and lignocellulose 2.6 kilograms (0.5%) are put into mixing machine dried be mixed even (mixed about 20 minutes) finished product.

Claims (2)

1, a kind of multifunctional additive for insulating dry-mixed motar is characterized in that: they are made up of following raw material and weight percent:

Cellulose sodium carboxymethyl 40-50%

Pva powder 10-15%

Urea-formaldehyde resin 30-45%

Polyoxyethylene 0.5-1%

Wilkinite 4-5%

Lignocellulose 0.2-0.5%.

2, according to claims 1 described multifunctional additive for insulating dry-mixed motar, it is characterized in that: its best proportioning is:

Cellulose sodium carboxymethyl 45%

Pva powder 15%

Urea-formaldehyde resin 35%

Polyoxyethylene 0.7%

Wilkinite 4%

Lignocellulose 0.3%.