SU979447A1 - Polymeric composition - Google Patents

Description

(54) POLYMER COMPOSITION

The invention relates to the preparation of polymer compositions based on cycloaliphatic epoxy compounds and can be used to create potting compounds, adhesives that bind to reinforced plastics in electrical, instrumentation, etc. ". branch of the national household.

A known polymeric composition comprising an aliphatic-cycloaliphatic epoxy compound (epoxyether), metal acetylacetonate and an aromatic or aliphatic amine.

The disadvantage of the known composition is the low durability and low heat resistance of polymers based on it, due to the use of not true cycloaliphatic compounds, but aliphatic-. co-cycloapyphic compounds containing epoxy groups in the side hydrocarbon radical.

Closest to the present invention is a polymeric composition comprising a cycloaphypatic epoxy compound, a metal acetylacetonate and an accelerator — hydroxyl-containing compound 2.

The disadvantages of this composition are low strength and heat resistance, as well as the presence, from traces of coke, under the conditions of surface electrical discharge.

The purpose of the invention is to increase the strength and heat resistance of polymers IQ and reduce their coking behavior under the conditions of electric discharge.

This goal is achieved by the fact that a polymer composition, including a cycloaliphatic epoxy compound, a metal acetylacetonate, and an accelerator — a hydroxyl-containing compound, additionally contains a cipher amine with the following ratio of components, parts by weight;

Cycloaliphatic

epoxy

connection100

25

Acetylacetonate

metal10 60

Hydroxyl-containing

connection 0.05-25.0

Aliphatic

thirty

amine 0,01-10,0

Example 1. In the reactor, equipped with a jacket and a stirrer, load 100 weight.h. dioxide hexahydrobenzal-1, 1 -dli-c (hydroxymethyl) cyclohexane (technical product yn-eiS), raise the temperature in the reactor to, load- 5 weight.h. Zinc acetylacetonate and mix. Then the temperature in the reactor is reduced to 10 ° C, 30 parts by weight are charged. . triethylentetraamine and 2.5 weight.h. glycerin and mix. The resulting composition is cured according to the mode: 140s / 5 h + PO ° C / 2 H + 200s / 5 h.

Example 2. Carried out analogously to example 1 in the following ratio of components, parts by weight:

Cyclohexylmethylcyclohexanecarboxylate dioxide

(technical

product UP-632) 100

Diethylenetetramine 45

Acetylacetonate

magni 0.01

Bisphenol (Y--. Kgf / cm2150 Heat resistance according to VIK, ° С, 270 Heat resistance according to Martens, C 165 150 0.0035 0.0048 Coke value,% None 0.001 Presence Does not form a track

As can be seen from the data table. 1, polymers based on the inventive composition differ favorably from the prototype; they have a higher compressive strength of 1.5-2.0 times; VIKA heat resistance 1.5-2.0 times; Martens heat resistance at 25-30С. At the same time, the tpd of polymers based on the proposed composition is practically at the level of the prototype, the coke number is insignificant, and the track is not formed.

Example 3. Carried out analogously to example 1 in the following ratio of components, parts by weight:

Dicyclohexylladipinate dioxide (technical product

UE-639)

100

Triethylenta10

amine

Acetylacetonate

10 0.05

aluminum

Resorcin

EXAMPLE 4: Carried out in the following ratio of components, 5 parts by weight, as in Example 1.

Dioxide

cyclohexene100

Hexamethylenediamine 60

Acetylacetonate

zinc2

4,4-Dioxydiphenylsulfon15

In tab. 1 shows the properties of the polymers obtained on the basis of. the proposed composition and in accordance with the prototype.

Table 1

In tab. 2 shows the properties of epoxy polymers with different curing systems.

The data table. 2 show that the advantages of the composition obtained are provided only by a three-component curing system. The use of a two-component curing system for curing cycloaliphatic epoxy compounds does not produce any effect. 155 0.0045 0.001 Missing from

1050

s / cm

103 0.155

85

How visible from the data table. 2, using a two-component system, it is impossible to completely cure a cycloaliphatic epoxy compound (degree of curing is not more than 85%), therefore polymers based on a cycloaliphatic epoxy compound with a two-component system have low properties. The use of the three-componeitic curing system increases the deformation heat resistance of the polymer by 2 times and the compressive strength by 2.5 times.

The invention Polymer composition comprising a cycloaliphatic epoxy compound, metal acetylacetonate, and an accelerator is a hydroxyl-containing compound, characterized in that, in order to increase the strength and heat resistance of polymers,

680

2150

76 0.430

165 0,003

78

98

its basis and reducing their coking behavior under the conditions of surface electric discharge, it additionally contains an aliphatic amine in the following ratio of components, parts by weight: Cycloaliphatic epoxy compound 100 Acetylacetonate

metal10-60

Hydroxyl-containing compound 0.05-25.0 Aliphatic amine 0.01-10.0

Sources of information taken into account in the examination

1. Japanese Patent No. 50-23879, cl. 26 (5) To (2), published. 1975.

2. The patent of England 1402899,

cl. C 3 V, published. 1975 (prototype).

Claims (1)

Claim The polymer composition, including ^: cycloaliphatic epoxy compound, metal acetylacetonate and accelerator - hydroxyl-containing _t compound, characterized in that, in order to increase the strength and heat resistance of polymers on aliphatic one hundred 10-60 0.05-25.0 0.01-10.0 25 based on it and reducing their coking ability under conditions of surface electric discharge, it additionally contains cue amine in the next 30 components, parts by weight: cycloaliphatic epoxy compound Acetylacetonate 35 metal hydroxyl-containing compound aliphatic amine