SU1090693A1 - Polymeric binder - Google Patents

Abstract

POLYMERIC BOND, including urea-formaldehyde resin, carboxyl-containing latex, structures, phosphorus-containing curing agent, and ethoxylated alkylphenol, with a degree of ethoxylation of 7-10, which, in order to increase the tensile strength in a wet state, non-woven glass textures, a non-woven texture, a glass structure, 7-10, and a non-woven glass textures Latex copolymer of butadiene and methacrylic acid at a mass ratio of 100: 1-2, as the phosphorus-containing hardener is ammonium phosphate and g additionally contains zinc oxide in the following ratio of components, wt.h .: Urea formaldehyde resin100 Latex of copolymer of butadiene i and methacrylic acid at a mass ratio of 100: 1-2 (on a dry residue) 20-40 Hydroxyethyl alkylphenol with CD degree of ethoxylation 7-102-5 Phosphate About ammonium1-3 CO WITH Zinc oxide1-2

Description

1 The invention relates to the production of non-woven fibrous materials from inorganic fibers and a synthetic binder for insulating pipelines, making roofing materials, and protecting drainage systems from silting during reclamation work. A polymeric binder is known, including urea formaldehyde resin, carboxyl-containing divinyl styrene latex and a hardener (ammonium chloride) tl 3. However, the known binder does not provide sufficient strength in the wet state to non-woven fiberglass materials. The closest to the invention to the technical essence and the achieved result is a polymeric binder, including urea-formaldehyde resin, carboxyl-containing latex (styrene butadiene), phosphorus-containing curing agent (orthophosphoric acid), and ethoxylated alkylphenols with a degree of oxistilylation of 4-10 CI, and a concentration of 10-10 CI. Fiber materials have a rather high tensile strength in the wet state. The aim of the invention is to increase the tensile strength in the wet state of a non-woven glass fiber material based on polymeric binder. . Said object is achieved in that the polymeric binder comprising urea-formaldehyde resin, a carboxyl-containing latex, and a phosphorus-containing curing agent oksietilir en oxy alkylphenols having a degree of ethoxylation of 7-10, as carboxyl-containing latex copolymer latex of butadiene and methacrylic acid at a weight ratio of 00: 1-2 , as a phosphorus-containing hardener is ammonium phosphate and additionally contains zinc oxide in the following ratio of components, wt.h .: 3 Urea formaldehyde mole, 100 copolymer latex of butadiene and methacrylic acid at a weight ratio of 100: 2.1 (on dry residue) 20-40 ethoxylated alkylphenol having a degree of ethoxylation 7-102-5 The phosphate ammoniy1 -3 oxide tsinka1-2 nonwoven material is prepared as follows. The glass mass flowing out of the spinnerets is pulled into the fibers under the action of a stream of hot air. The elongated fibers are laid on the receiving-conveyor grid in an even layer using the discharge generated under the grid. The layer thus molded is randomly arranged, the fibers are impregnated with an aqueous solution of the binder 4-6% concentration. The excess binder is removed from the glass fiber by suction, after which the canvas is heat treated at 180-200 ° C. In tab. 1 shows the formulations of a polymeric binder. In tab. 2 shows the compositions and properties of non-woven glass fiber material based on the proposed polymer binder and known; in tab. 3 - characteristics used in the table. 2 glass fiber fillers. From tab. 2 that the nonwoven glass fiber material based on the proposed binder has a tensile strength in the wet state 24% higher than on the basis of the known binder.

Table 1

Urea formaldehyde resin

Latex copolymer of butadiene and methacrylic acid in a mass ratio (on the dry residue)

100: 1

100: 1.5

10: 2

Ammonium phosphate

Oxidized alkyphenols with a degree of ethoxylation

.7 (OP-7) 10 (OP-10) Zinc oxide

100

100

100

20

thirty

thirty

3 1.9

table 2

T a b l and c a 3

Claims (1)

POLYMERIC BINDER, including urea-formaldehyde resin, carboxyl-containing latex, phosphorus-containing hardener and hydroxyethylated alkyl phenol with a degree of hydroxyethylation of 7-10, characterized in that, in order to increase the tensile strength in the wet state of the non-woven glass fiber-based carboxylic material based on it contains latex copolymer of butadiene and methacrylic acid in a mass ratio of 100; 1-2, as phosphorus-containing hardener - ammonium phosphate and will complement fully contains zinc oxide in the following ratio of components, parts by weight: Urea-formaldehyde resin Latex copolymer of butadiene and methacrylic acid in a mass ratio of 100: 1-2 (per dry residue) Ethoxylated alkyl phenol with a degree of hydroxyethylation 7-10 Ammonium phosphate Zinc oxide 100 SU., N 1090693>