SU715335A1 - Lubricant for moulds - Google Patents

Description

(54) LUBRICANTS FOR FORMS

I

The Internet refers to the industrial construction materials, namely, lubricants for molds in the manufacture of concrete and reinforced concrete products.

Known lubricant, which includes flj mineral oil The closest to the technical essence and achieved the result to the proposed is a lubricant for the forms in the manufacture of concrete and reinforced concrete products, including, wt.%:

Mineral oil98-99,9

Additive - (jk-dicarbon

acid, 1-2,

Known lubricants receive emulsions. Oil in water or water in oil in the presence of a surfactant.

However, when using these lubricants, the surface of the products has a large number of pores.

The purpose of the invention is to reduce the porosity and improve the quality of the surface (} of available products., ;;

The chain is achieved by the fact that the lubricant for forms in the manufacture of concrete and iron concrete products, including mineral oil, an additive and water, contains as an additive a sulfirovany oligomer of the structure /

1 | and 1

SOjMe /

where R is an organic radical; Mb - sodium or potassium, or calcium, or aluminum, or

ammonium; Y (- degree of polymerization,

equal to from 2-20, in the following ratio of components, wt.%: Mineral maszo-60

Sulfonated oligomer O, 5-1 O

WaterEverything

Claims (2)

As a mineral oil, you can take pure or used engine oil (or a mixture of mashshpyugo oil with paraffin or low molecular weight polyolefin). 3 Example 1. Prepare a smear with sedimentary ratios of composites, wt.%: Mineral oil30 Sodium salt of sulfonated condensation product of melamine with formaldehyde at VI "100.5 Water 69.5 Indicator of surface porosity of products,%. O, O1, PRI me R. 2. See cm at a specific ratio of components, wt.%: .. Mineral Maqjo5O Calcium salt of sulfonated naphthalene sulfonic acid condensate product. with formaldehyde at And 8 2 Water 48 Indicator of surface porosity of products,% O, O2 Example 3, Prepared, see the following ratio of samples, wt.%: Mineral oil 40 Calcium salt of condensation product of naphthalene desiccate acid with formaldehyde at h 24 Water 56 The index of the surface porosity of products,% OD Example 4. Prepare with ku in the following ratio of composites, wt.%: Mineral oil 6O Aluminum salt of the product meridian formaldehyde product “2O 1O Water30 Index of surface porosity of products,% 0 , 05 . The use of the proposed lubricant allows to improve the surface quality of the formulated products, to exclude additional finishing operations with putty residues by reducing the porosity of the surface of the products. Claims of the Invention A lubricant for molds in the manufacture of concrete and reinforced concrete products, including mineral oil, an additive and iodine, which, in order to reduce porosity and improve the quality of the surface of the molded products, contains as an additive a sulfonated oligomer structure. (n, where R is an organic radical; Me is sodium, or potassium, or calcium, or aluminum, or ammonium; And, the degree of polymerization, is the same for sleduks (em ratio of components: Mineral MasO-6O). Sources of information taken into account in the examination 1.Vavrzhin F. and Krchma R. Chemical additives in construction, M., 1964, pp. 178. 2. USSR author's certificate number 546477, cl. B 28 B 7/38, 1974.