SU751819A1 - Polyethylene-based composition - Google Patents

Description

(54) COMPOSITION BASED ON POLYETHYLENE

one

The invention relates to the field of processing of plastic masses on the basis of -vol; ka1N1SiNaNN polyethylene and can be "used for the manufacture of electrical parts1H, chemical, and chemical industry; HNT, e: xnluate, I | Ruyush." X at elevated temperatures (up to 250 ° C), painted in any color.

) From: Cn10pozitsch1 vulcanized o-ethylene are known, containing, not; filling the temno of its color - coal, soot 1 soot.

There are commemorations filled with light, and cartels of calcium, kaolin, talc, cnc oxide, low dispersed .MaipiKaiMH white carbon black, b.uyu Titus 2, and these fillers do not provide high-strength Ikit1111. high filling.

The composition is known as a wool; low polyethylene, containing cummyyl peroxide as a filler, is a cross-linking agent. The composition has high, strong characteristics, but not stabilizing | roVa but against aging processes, which occur in polyethylene. НННО | М polyethylene, .socompletively: in residues of decomposed peroxide dicum la, are more intensive than. volka.izirovannom

FLOOR; IET; I.LvNe.

Closest to the one described is a composition based on homo- (OR ethylene copolymer, containing organic peroxide, white carbon black filler BSp50 and stabilizer diaphane HH4). This composition has low strength and low resistance to aging processes, low the deformation resistance is “cold” and low freezing-dry.

The aim of the invention is to increase the strength, resistance to aging, and the resistance to frost resistance, and to frost resistance.

To achieve this goal, a composition based on polyether, glen, -n white soot, BS-120 is a pentate cross-linking agent, and as a stabilizer contains 1,2-ethylidene bis (3.5-di-gr. -butyl-4-hydroxyphenyl | ropionate) - fenozan 27

20 in the following ratios of ing.rediento, (weight: including:

Bela soot10-40

Dicumyl peroxide3,5-8

1,2-Et.hildenbis- (3,5-di-greg25 butyl-4-oxyphenyl-iroion) 0.8-4

(Polyethylene 48-85,7

Preparing compositions

following sosta30 va, daniopo in table. one.

Table 1

The compositions are prepared, mixed by mixing with rollers ny 135 ° C for 20 min, then separate, and they turn out to “compressive stress in a pressure of 320 kg / cm

As in / idiot, from the table, L | rochn.asti of the pre-temporal composition (by trimer 1) is better than that of the shrotiotype and 51.95%, resistance to 1st arrest (legal preservation (Relatively udL1INvNIIIa after ter: the bridge | рвн, и) better by 98%, .MOtpo3iOiCTof; KiOCTb lEa 50%, deformation stability, iHarpeBaiHMM, and underneath the belt "and 48.5%. Wickedness of wrsttotil: not a single product," She is happy, and she will be using the keyboard1). H | OH with the resistance of etri 1b, L1N | III, and if the latter has a large value, then the heat resistance according to Ka has a n) h) beginning. If the deformation is 1: O, then the heat resistance is higher than 210 ° C. The proposed position (because of the Vick heat resistance above 210 ° C, i.e., the temperature at which the specimen is pressed down is not possible, as the device gives the maximum temperature of 210 ° C. The compositions have a light oyurasku, they do not have a heat aging. Details from the predlag-agamoy compote are 15 min.

Sran-ital “-th data protopip-a Predel, see the table“ are presented. 2

table 2

Zitsil will have IB operation 5 times longer than from the mat (p: ial of the prototype, has better qualities. Evaluation; it is given according to the coefficients of effort.

Due to improved frost resistance, parts from the proposed campus M10Zhno Zks: should be plated under the conditions of the Far North. High. White soot. Filling 32 wt. h. gazozvolit save 1pulim1er more than per / s (progiv 3 parts. c. from tsrototisha) with co, xp1a1nen1i, and juvet color koimpozitsii. The strength of Compositions and Deformations of Matisogan is high when heated, the ability to sh 1p | Shiva1Niyu significantly expands the scope of their application. The proposed technological mode of manufacturing the com- puter 175 ° С for 15 min (at 160 ° С (for 40 min at the irototype) will increase the productivity of labor).

Ph o IP. M u l a. I 3 o b ete n i

Composition (on the United States of America, including a filler, | white massage, peroxide cross-linking agent and Stabilizer, about that l and so, so that, in order to increase the resistance of aging, resistance to aging, def: and frost resistance of bristling polyethylene, it contains, as stabilizer, 1,2-ethylidene, (13,5-di-greg-butyl-4oxyphenyltrupyonate) with the following ratios x 1H1n, g; edited ntov, Vbs. h .;

Bela soot10-40

Dicumyl peroxide3, i5-8

 1,2-Ztil.idvn (bn1S- (3,5D | I-greg-butyl 4-okofenilpr. Opio, Nat) 0.8-4 | Poliet.ilen48-85,7

The sources of the information, are you in mind at the examination:

1. Bzr 3. "Branched filler soot polyethylene," Kunststoffe, 1963, 53,

No. 8, 502-509.

2. The UK patent number 1272264, cl. C 3 P, published. 1072.

3. USSR author's certificate number 565517, cl. C 08 L 23/06, 1977.

4. USSR author's certificate No. 484227, C 08 L, 23/04, 1975 (prototype).

Claims (1)

Claim Composition on the backbone of polyethylene, including filler, white carbon black, peroxide cross-linking agent and stabilizer, with the same effect: and I with the fact that, in order to increase strength, resistance to aging, deformation resistance when heated and frost resistance. cross-linked polyethylene, it -contains 1, -2-ethylidenebis- (Z.b-di-tert-buty l-4oxyphenylpryonate) as the β-stabilizer in the following ratios of ingredients, weight. hours: White soot 10-40 Dicumyl peroxide 3.5-8 1.2-Ethyl.denbis- (3,5di-tert-butyl-4o high enyl propionate) 0.8-4 Polyethylene 48-85.7