SU531809A1 - Diacido-bis / dimethylamino / -isopropanolmell / c / as a cold curing accelerator for polyester resins - Google Patents

Description

1 g (0.0027 mol) of Cu (ClO4) 2-6H2O is dissolved in 40 ML of ethanol. Under stirring, 1.28 g (0.0085 mol) of amino alcohol is added to the resulting solution. A green precipitate falls out, which after 30 minutes is filtered off, washed with alcohol and dried. The yield of the reaction product is 64%.

Found,%: C 20.21; N 6.38; C1 16.89; Si 15.30.

CyHisOgNsClsCu.

Calculated,%: C 20.43; N 6.84; C1 17.36; Sy 15.64.

The resulting intracomplex copper compounds, soluble in polyester resins, can be used as cold cure accelerators of unsaturated polyester resins with cumene hydroperoxide (HPA) instead of the cobalt salts used (in the form of cobalt naphthenate and others), which require special solvents. For initiation of maleate-acrylate polyester resins, double initiating systems consisting of HPA and NC (cobalt naphthenate) are generally not sufficiently effective, therefore, three- and four-component systems are used. The use of the same synthesized intercomplex copper compounds with bis (dimethylamino) isopropanol allows the use of a two-component initiating system for curing maleate-acrylate resins.

The use of intracomplex metal compounds in the composition of the initiating system leads to an increase in the heat resistance of the curing threemer, which is indicated by thermomechanical curves.

The results of laboratory tests of a polyester binder, for the curing of which an initiating system was used, consisting of 3 hydro-transduction of 1Ci cumene (HPC) and one of the accelerators — bisdimethylaminoisopropanol chloride, copper (II) -1, which element or bisdimethylaminoisopropanol copper (II) -2 chloride, whose elemental composition shown in examples 1 and 2 are shown in the table.

A simultaneous thermomechanical test on the Goppler consistometer under similar conditions of the same polyester binder, cured by the traditional initiating system of the CCP + NC (cobalt naphthenate), showed that the DE is 0.26 mm.

Table

Accelerator

Indicator

one

Brinell hardness, kgf / cm

Strength, kgf / cm;

bending

under compression

Deformation at 200 ° С according to the results of thermomechanical tests on the Goppler consistometer with a load of 10 kg and a temperature rise rate of 50 / h, DE, mm

The conducted tests lead to the conclusion that the polyester resin cured with the use of the proposed accelerators is characterized by high physicomechanical indices, and with it: the above thermomechanical properties. In addition, the use of chloride 1 and nrechlorate 2 bis (dimethylamino) isonopanol and medicaments as accelerators for curing maleate acrylate polyester resin IB combination: with initiators — cumene hydroperoxide has the advantage compared with the used curing systems that the accelerators can be used, it can be used as a solution for the cumene hydroperoxide. require the use of special solvents, like other accelerators (NK-2, BNK-2, AK, etc.).

Claims (1)

Invention Formula Datsidobis (dimethylamino) isoprop a and o l copper (II) , 5x / .. snon ,, -СС СНз where X-C1-C104 serves as a cold curing accelerator for polyester resins.