SU649326A3 - Polymer composition - Google Patents

Description

one

This invention relates to flame retardant polystyrene compositions.

Polystyrene keypoints that contain polystyrene, acrylonitrile butadiene styrene polymers (LAN), rubber containing polystyrenes, additionally contain flame retardant additives to impart flame retardancy or at least delay the spread of fire.

Among the most commonly used

Fire retardant additives include: bromine and / or chlorine and / or phosphorus-containing organic compounds.

Closest to the proposed composition is a polymer composition containing a washing polymer, flame retardant chlorine or bromine will contain additive and antimony oxide il,

Oanako known composition does not have sufficiently high fire resistance and self-extinguishing.

The purpose of the invention is to increase the fire resistance and accelerate self-extinguished.

This is achieved in that a composition comprising a styrene polymer selected from the group comprising a styrene homopolymer is polystyrene comprising 5-15 parts by weight. rubber, and. acrylonitrile-butadiene-styrene copolymer, a flame retardant additive selected from the group containing decabromodiphenyl, decabromodkphenyl ether, perchloropentane cyclodecane, tetrabromophthalic anhydride, and tri- (2,3-dibromopropyl) phosphate, and antimony oxide, also contains an pattern, and an anhydride is also an aphrophrase, as well as an aphroph anhydride, and an anhydride is also an aphroph anhydride. containing danethanolamide lauric acid, monoisopropanopamide and lauric acid isopropanolamide, ethoxylated ketilamine, M- (-aodeoyloxy-2-hydroxypropyl) ethanolamine and (Z-lauryl idopropil) trnmegnlammoniymetilsulfat the following component ratio, by weight, polymer sgirolny h ,: - 1OO; flame retardant additive selected from the group consisting of decabromobiphenyl, decabromodifesh ether, perchporpengangnospokeken (heteropoly phylapy angnd) yd, or pl (2,3 -d6rompropyl) fsk-: fat-3.-7 .; oxide prisms 1-7; az-Eifatnichesky org-anicheko nitrogen-containing compound - 0,2 - .. 8 ,,

The described aaogyc compounds have aigisgae properties, which is of greater value for the final polymer,

In addition, it was established that the use of nitrogen compounds is possible and it can reduce the number of factors in & n connected antimony szhxi

The examples given describe the features of the polymeric compounds according to this invention, in the hour of the pyori syiorge-ages effect of the aooi compound, and on the orHecroftxvie properties of the mixture.

Self-extinguishing property; Characterized by the fact that combustion is not supported, I. spacing 5 pa samples of size 15.23 X 1.27 X 0.32 cm next o4 time "

The specimen is turned on so that the largest size is located along the vertical end. The end is located at 0.8v5 cm or the top of the burner. The burner is lit and adjusted so that the height of the flame is 1.9 cm Air is released in advance before the burner is removed, so that the air is faded. A point at the top of the flame. The plum is placed under the lower edge of the sample along its axis. The Plgzm is maintained for 10 sec. Then the flame is set to g and the quenching time of the sample is determined. When the sample is burned out (after the burner has been removed), the latter is immediately returned for another 10 s. The burner is then removed again and the time r is measured again. In the examples, the average 4O consecutive measurements (2O samples, two measurements for each sample).

The antistatic effect is evaluated by the degree of contamination of the tiles of the polymer compositions of this invention vertically mounted on pedestals and susceptible; the effect of dust in a scientific research institute for a period of time ranging from 1 day to 1 month. The assessment is made on a scale defined by a trace} in a skinny way, the tile is guarded (| ficient-0,1,2 or 3, while O is a perfectly finished tile; 1 is a tile, clearly covered with dust stripes; 2 is a tile, slightly covered with dust strips; 3 tiles, not covered with dust.

93264

and p and, M S p J. 1; PLCH1G mixture OLISg; ps; lz yuzkiynnaya uadk popkkhrti with 10 weight of h decabromdatea, 0.2 weight h of decaghiola. lauripovoy kyo-oty. (Lde) 5 concentration of antimony oksk

The tvblyytse indicated, FifiotviH aa -hacks the flame of the 5th (B seconds), an interchange to the Peigracin Sb.-iO-5, "

This example shows primarily the energy effect on the fire-resistant hectares / guided compound in the absence of one. properties in this case can be limited to half the amount of antimony oxide).

Samples containing LDE are subjected to the mentioned antistatic test. The results are as follows: when trying for 1 day, the coefficient is 3, when tested for 3 days - 3, for 1 month 3,

For comparison, a preparation is prepared containing, instead of the nitrogenous compound described, another type of asthistatic agent.

Prepare a mixture containing high impact polystyrene from polymer 1.10 weights, hours, decabromyphenyl, 2 parts by weight. sodium lauryl sulfate and 5 wt.h.

If the mixture does not contain lauryl sulfate, the flame decays within 0.93 s. If the mixture contains 2 parts by weight of lauryl sulfate, the flame decays within 26.3 s.

Claims (1)

1. Belgium patent No. 661653, cl. C O7 d, 1965,