SU979444A1 - Polymeric composition - Google Patents

Description

The invention relates to the preparation of polymer compositions with a reduced content of highly toxic gases during thermal degradation and can be used in the preparation of glass plastics, adhesives, casting and impregnating compounds. The known polymer composition containing metal complexes with atomic number from 24 to 30 mixed with alkali metals to reduce the amount of hydrogen cyanide in the combustion products (1 However, these additives are recommended for thermoplastics and are not used in epoxy compositions. Closest to proposed is a polymer composition including resorcinol diglycidyl ether, 40% solution of oligrene glycol maleate phthalate in triethylene glycol dimethylacrylate, 2,2-diamino-4 hardener , 4,6,6 tetrachloro-cyclotriphosphazene and peroxide initiator 2. A disadvantage of the known composition is the high content of highly toxic gases, in particular hydrogen cyanide, as a result of thermal treatment. the fact that the polymer composition, including resorcinol diglycidyl ether, 40% solution of oligoethylene glycol maleate naphthalate in triethylene glycol dimethyl acrylic ether, hardener - 2,2-diamino-4,4b, 6-tetrachloro-cyclotriphosphazene and peroxide, the initiator additionally contains a powder mixture of 60-65 wt.% Manganese dioxide and (35-40 wt.% Active copper oxide in the following ratio of components, parts by weight . Digoricyl ester of resorcinol 50-60 40% solution of oligoethylene glycol maleate phthalate in dimethylacrylate triethylene glycol 35-40 2,2-Diamino-4,46, 6-tetrachlorocyclopryphasine, L-10

Peroxide initiator 0.2-2.4 Powdered powder mixture of 60-65 wt.% Manganese dioxide and 35-40 wt.%

active copper oxide 1-4 A mixture of biconium manganese with copper oxide is marketed under the name hopplit.

Example 1. A hardening agent of 2,2-diamino-4, 4 -6,6-tetrachlorocyclotrifosfazene is dissolved at 55.3 wt.% Resorcinol estercinol esterine ester SRES-3) at room temperature. With stirring, 36.9% by weight of an NPS-609-1CH unsaturated oligoether, representing co6ofi, a 40% solution of oligoethylene glycol maleate phthalate in dimethacrylate ether triethylene glycol, is added to the resulting single-phase mixture. Then, the composition is added with stirring (1% by weight of the unsaturated oligoester and the cross-initiator. The resulting epoxy oligoester composition

adding cl under preexication of hopcalite 2 wt.% (on 01 wearing; to the entire apoxyol ester COMPOSITION). The composition cures as the temperature rises gradually from 80 to 140 ° C.

for 30 hours. The cured composition is opaque, black. Example 2. To the epoxy oligoester composition prepared in Example 1 was added with stirring.

3 wt.% Catalyst. The curing mode of this COMPOSITION is similar to the cured / eed mode of the epoxy oligoester composition specified in Example 1.

Example C: To the epoxy oligoester composition prepared in Example 1, 4 wt.% Of the catalyst are added with stirring. The curing mode of a similar composition is similar.

the curing regime of the epoxy oligoester composition specified in Example 1.

The composition and concentration of gaseous products of thermal destruction of known and proposed (examples 1-: 3) compositions are given in table. one.

Tablip9 1

70 0.14

20 0.3

300

20

 The amount of gas released per unit mass of the composition: per unit of time; The total amount of less harmful organic gaseous products

represents the oxygen equivalent of all organic substances oxidizing under the conditions of the experiment. T

Indicators

Destructive stress, MPa under compression when stretched

0.86

30 0.14 0.87

7.3

90

21.3

Table 2

The composition of the examples

Prototype 1-3

180

180-190

90 105-110

Claims (2)

Claim A polymer composition comprising resorcinol diglycidyl ether, a 40% solution of oligoethylene glycol maleate phthalate in triethylene glycol dimethacrylic ether, a hardener - 2,2'-diamino-4,4'6,6'-tetrachlorocyclotriphosphazene and a peroxide initiator, characterized in that the concentration of highly toxic gases released as a result of heat treatment, it additionally contains a powdery mixture of 60-65 'wt.% manganese dioxide and 35-40 wt.% active copper oxide in the following ratio of components, Diglycidyl ether and a 40% solution of oligoethylene glycol maleate phthalate in dimethacrylic ester of triethylene glycol 2,2'-Diamino-4,4 ', 6,6'-tetrachlorocyclotriphosphazene Peroxide initiator Powdered mixture 60-65 wt.% manganese dioxide and 35-40 wt.% active oxide copper parts by weight: 50-60 35-40 5-10 0.2-2.4 1-4 sources of information taken into account in the examination 1. US patent No. 4109067, CL. 260-860, published. 1978. 2. USSR author's certificate on application No. 2796701 / 23-05, cl. C 08 L 63/00, 1979 (prototype).