SU1008229A1 - Adhesive composition - Google Patents

Abstract

ADHESIVE COMPOSITION, including poly-1,1,2-trichlorobutadiene-1,3, pI dinitrobenzene, carbon black and stabilizer, characterized in that, in order to reduce the toxicity, explosion and fire hazard of the composition. And increase the bonding strength of rubber with metal, it contains poly-1,1,2-trichlorobutadiene-1. 3 in the form of a latex, as a stabilizer, lead stearate and additionally a butadiene copolymer latex with a comonomer containing an N-substituent I amine amine, and sodium alkyl sulfonate in the following ratio of components, parts by weight : Latex poly-1, 1,2-trhl

Description

00 tS3

to

with

The invention relates to adhesive compositions for attaching rubber based on non-polar unsaturated rubbers (NK, SKI, SKD, SKMS) to metals in a vulcanization process. The adhesive composition can be used in rubber rubber, aviation, automotive and other industries.

Known glue Leikonat used to attach rubber to metal}.

The adhesive is toxic and does not provide the necessary bonding strength (the bonding strength does not exceed 4, O MPa.

Known glue Hemlock-820 .2.

Glue is expensive.

The closest in technical terms (to the essence and the result obtained to the proposed one) is the adhesive composition 3, containing, m.ch .: Poly-1,1,2-trichlorobutadiene-1, 3 (PTCC) 100.0

ParadeInitroso-.

benzene15.0-20.0

Technical

carbon TG-10 3-20,0 Stabiliz ator 3,0 Toluene (metaxylene) 360,0-850

The presence of a toxic, explosive and flammable solvent in the composition makes it difficult to manufacture and use. In addition, the bonding strength of rubber with metal is not high enough,

The purpose of the invention is to reduce the toxicity, explosion and fire hazard of the composition and increase the bonding strength of rubber with metal.

The goal is to achieve that the adhesive composition, including poly-1,1,2-trichlorobutadiene-1,3, -dinitrosobenzene, carbon black stabilizer contains poly-1,1,2-: trichlorobutyene-1/3 in the form of latex, as a pig stearate stabilizer and additionally a btadiene copolymer latex with a somokomer containing H-substituted amine, and sodium alkyl sulfonate in the following ratio of coponents, wt.

Latex poly-1,

1,2-trichlorobutadiene-1, 3 (on

dry matter) 100.0

Latex copolymer

butadiene with comonomer containing

N-swept amine

(dry basis) 20.0-50.0

P-dinitrosobenzene 5,0-20,0

Technical Carbon5, 0-20.0

Lead stearate 3,0-5,0

Alkylsulfonate

sodium 2.2-4.8

Water300.0-350

In the proposed composition, poly-1 1,2-trichlorobutadiene and a butadiene copolymer with a comonomer containing an N-substituted amine are used in the form of latexes.

Latex poly-1,1,2-trichlorobutadiene is obtained by emulsion polymerization.

The use of latex eliminates the laborious steps of isolating the product after synthesis, drying, dissolving, emulsifying and distilling off the solvent to obtain the latex.

Example. For the preparation of glue, the pH of the PTXB latex is from 2 to 9, the tide to 100 g of latex is 3.0 g of a 25% aqueous solution of ammonia.

The aqueous dispersion is made as follows.

54 ml of tap water containing 4.6 g of sodium alkyl sulfonate is poured into a glass bead mill, then, with the rotor running, pour 13.7 g of paradinitrosobenzene, 13.7 g of carbon black (PGM-33), 4.1 1 lead stearic acid. After stirring for 5 minutes, glass beads of 25 ± 5 g are loaded into the mill. Dispersion is prepared for 45 ± 5 minutes, then poured off, the beads are separated in a funnel. The adhesive composition is prepared by mixing | Three components: 70 g of PTXB latex (pH 9j concentrated dry. | 44., 5%); 30 g of butadiene copolymer latex with diethylaminoethyl methocrylate (pH 10; conc. Sludge, 35.4%) and 20 g of aqueous dispersion of fillers.

To attach rubber to metal, the adhesive composition is applied with 51K-19 adhesive, Chemosil, which is applied to the metal surface as a sublayer. Clay suisht 3515 min. Other adhesives with adhesion to metal can also be used as a base layer.

Table 1 shows the rubber compounding to produce rubber that can be combined with metal.

Table 2 presents the formulations of adhesives.

Table 3 presents comparative test data.

From Table 3 it can be seen that the use of butadiene copolymer latex with a comonomer containing N-substituted amy stably ensures a high level of fixing strength in dosages, exceeding their minimum content (20 wt.h. per 100 wt.h. PTHB), required by to achieve good film-forming properties of the composition, and that water dispersion

glue surpasses the known mortar

Continued -Table one

15.0 30 Zinc oxide 15.0

Poly-1,1,2-trichlorobutadiene-1, 3 (dry)

Butadiene copolymer with comonomer containing N-substituted amine (dry) Paradinitrosobenzene

Those. carbon

Lead Stearate Alkylsulfonate Na Water

Toluene

table 2

100.0

100.0

100.0

100.0 nizatsiya, p. X. .1У1.i. i l 1Q08229 3

Table

Continued table. 3

Claims (3)

GLUE COMPOSITION, including prl-1,1, 2-trichlorobutadiene-1,3, pdinitrosobenzene, carbon black and a stabilizer, characterized in that, in order to reduce the toxicity, explosion and fire hazard of the composition and increase the bonding strength of rubber with metal, it contains poly-1,1,2- trichlorobutadiene-1, 100 3 in the form of latex, as a stabilizer, lead stearate and additionally a latex of a copolymer of butadiene with a comonomer containing an N-substituted amine and sodium alkyl sulfonate in the following ratio, wt.h. : Latex poly-1, 1,2-trichlsfbu-. .'thadiene-1,3 (per dry substance) Latex of a copolymer of butadiene with a comonomer containing an N-substituted amine (per dry substance) P-dinitrosobenzene Carbon black Lead stearate. Sodium alkyl sulfonate 2.2-4.8 Water 300-350 SU „„ 1008229> 100.0 15.0-20.0 3-20,0 3.0 360.0-850 explosive and 100.0 to 20.0-50.0 5.0-20.0 5.0-20.0 3.0-5.0