SU1689383A1 - Polymer composition - Google Patents

Abstract

This invention relates to the arbitrariness of polyolefin-based products. Because of this, it is possible to increase the thermal stability due to the fact that the polymer composition, which includes 100 ms by hours. poly-olefin and 0.1-0.5 ma.h. phenolic antiok sidant. additionally contains 0.25-5.00 mash. calcium salt fat mass. 3 tab.

Description

The invention relates to the chemical industry and can be used in the manufacture of products based on polyolefins (PO) with enhanced heat resistance.

The aim of the invention is to increase the thermal stability.

Calcium salt fat mass (CaMM) I get g in the following way.

A universal mixer (capacity 8 l), operating according to the gravitational principle, equipped with a jacket, is loaded with the organic mass and calcium hydroxide D ratios indicated in Table 1 and the mixture is stirred at 140-150 ° C for 30 minutes. Then the product is cooled to 40 ° C and unloaded. The total synthesis time is 60 minutes. The output is quantitative.

Fat mass is mixed with calcium hydroxy according to Table 1.

As can be seen from Table 1, for the production of SAZHM, the optimal ratio of fat mass and calcium hydroxide is

mixture containing, mac. SOGM LB. Ca (OH) 2 60.

The fat mass is a secondary waste that is formed during the purification of wastewater from the oil and fat industry and is produced according to the standard.

The characteristic of the fat mass is given in table 2.

The synthesized carbon-free metal is added to the polymer and the thermostability of the PO at 00 ° C and the torus are taught. The composition and thermal stability of the compositions are given from gabl 3.

Examples 1-9. Compositions containing, wt.: PO 100: phenol antioxidant 0.25 and 0.5; Sage 0.25; 0.5: 0 75; 1.0; 2.5; 4.0 and 5.0, are mixed in an agate mortar with the addition of heptane (to evenly distribute the antioxidant and carbon monoxide in the polymer). The mixtures are dried in air, after which of them the films are pressed in an inert atmosphere at 1SO-200 ° C; film thickness 90-100 microns. From the samples thus obtained, small pieces are taken and tested.

with:

CN 00

Yu SO

oo

with

are on antioxidant resistance. The results are shown in table 3.

Examples 10-14. Compositions containing, by weight.h .: PO 100; phenolic antioxidant 0.1 and 0.25: CaM 0.25; 1.25 and 2.5. prepared and tested as in Examples 1-9 (Table 3).

Examples 15 and 16 (by a known method). Compositions containing, by weight.h .: PO 100; phenolic antioxidant 0.5, prepared and tested as in Examples 1-9 (Table 3).

EXAMPLE 17 A composition comprising SAFM and phenosan-28 is prepared and tested as in Examples 1-9.

Claims (1)

Invention Formula A polymer composition comprising a polyolefin and a phenolic antioxidant, from the fact that, in order to increase its thermal stability, it additionally contains a calcium salt of fat mass in the following ratio of components, parts by weight: Polyolefin100 Phenolic antioxidant 0,1-0,5 Calcium salt fat masses0.25-5.00  Heat resistance of the original polypropylene (PP) 11 minutes; concentration of sazhm in PP-1%. Indicators Colour Consistency at 20 ° C. Mass fraction of total fat content. % The number of saponification, mg KOH Table 1 table 2 characteristic and norms of fat mass Dark to dark brown Mase like Not less than 40 Not less than 85 Composition and thermo-oxidative stability of polyolefin compositions T 200PC, P 300 tor Table3 Continuation of table 3