SU621695A1 - Antistatic composition - Google Patents

Description

(54) ANTISTATIC COMPOSITION

one

The invention relates to antistatic polymeric, in particular polyolefin, compositions used for the manufacture of sheets, containers, films and the like.

A polystyrene-based antistatic composition is known, containing alumina 1 as an antistatic additive.

Known antistatic formula consisting of 99.5-90.0 wt. % polyethylene and 0.5-10.0 weight. % surfactant - a mixture of sodium di- (2-ethylhexyl) phosphate and tri- (2-ethylhexyl) phosphate (99-95: 1-5) 2.

This composition has sufficiently good antistatic properties; the specific surface resistance ($ 9) is in the order of 10 ° Om with an antistatic content of up to 6 wt. ° / o at 2d2 ° C and relative humidity, which, however, are greatly impaired by

gasoline.

In order to preserve antistatic properties under the action of gasoline, a composition is proposed containing an ethylene homo- or copolymer and a surfactant and, in addition, aluminum or an inorganic compound, aluminum, with the following cooTHonjeHH components, weight. ° / o: Go.mo- or ethylene copolymer89.0-99.3

Surfactant substance 0.5-6.0

Alu.miny or inorganic compound of aluminum 0,2-5,0

For example, a mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) phenyl phosphate is used as surfactants. 1 -oxyethyl-2-heptadicy imidazoline, tri.methyloctadicyl.monium acetate, etc.

As inorganic aluminum compounds, for example, aluminum chloride, aluminum oxide, etc. are used. For the preparation of compositions, aluminum is used in the form of Pultra. We propose a composition. It can contain various target additives: thermal and light stabilizers, for example, dibetan naphthyl paraphenylene diamine, called diafen HH, 4,4 -thio-bg s- (3-methyl-6-gre 7 - butylphenol), referred to santonoksom, and sm, zki, etc. The antistatic composition is produced by mixing the components at elevated temperatures, for example on rollers, in high-speed mixers, heavy mixers. Example 1. By: high-density ethylene with 3.0 weight. % mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenyl phosphate (95: 5), 1 wt. % aluminum powder and 0.1 weight. % heat stabilizer diafene HH is mixed for 10 min in a heavy type mixer at 155 ± 5 ° C. The resulting composition has a D 3.0 to 10 Ohms at 20 ± 3 ° C and a relative humidity of 65 ± 5%, specific volume resistivity, 4.6 10® Ohm-cm at 20 ± 3 ° C and has a yield strength of {{ 3) 210 kgf / cm, breaking stress at stretching (5p) 135 kgf / / cm and elongation at break (j6) 240%. P-samples of the composition after exposure to A-76 gasoline for 20 days at room temperature is 1.9 10 Ohm, i.e. antistatic properties are preserved. Example 2. High density polyethylene with 3.0 weight. (a mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenyl phosphate (95: 5), 1 wt. % alumina and 0.1 weight. % heat stabilizer diafene HH is mixed for 10 min in a heavy type mixer at 155 ± 5 ° C. The resulting composition has a D 2.3-109 QM at 20 ± 3 ° C and a relative humidity of 65 ± 5%, P .4.6 10 Ohm cm at 20 ± 3 ° C and has:: 223 kgf / / cm2, (5p .139 CGS / CM2 and B302 "/ o. The samples of the composition after exposure to A-76 gasoline for 20 days at room temperature are 1.4 W Ohm, i.e., antistatic properties are retained. Example 3. Polyethylene high density with 3.0 wt./about a mixture of sodium di (2-ethylhexyl) phosphate and tri (2-ethylhexyl) phosphate (97: 3), 1 wt.% aluminum powder and 0.2 wt.% Santonox heat stabilizer is mixed for 7 minutes on rollers at 155 ± 5 ° C. The zits have p 6,3 10 Ohms at 20 ± 3 ° С and relative humidity of 65 ± 5%, PV 2.2 10 Ohm cm at 20 ± 3 ° С and have kgf / cm2,6r 150 kgf / cm and С 230%. jOg samples of the composition after exposure to A-76 gasoline for 20 days at a room temperature of 1-1 to .10 ohm, i.e., antistatic properties are retained. Example 4. High density polyethylene with 3.0 weight .% mixture of sodium di- (2-ethylhexyl) phosphate and tri- (2-ethylhexyl) phosphate (97: 3), 0.5 wt. % alumina and 0.1 weight. ° / o thermo-stabilizer diafena HH is mixed for 7 minutes on rollers at 155 ± 5 ° С. The resulting composition has a pH of 7.6 ohms at 20 ° -3 ° C and a relative humidity of 65 ± 5%, py 6.8 10 ohm-cm at 20 ± 3 ° C and has a tsbo kgf / cm2.5 p.125 kgf / cm and 176% . PS samples of the composition after exposure to gasoline brand A-76. for 20 days at room temperature is 4.0 -10 ohms, i.e. antistatic properties are preserved. Example 5. High density polyethylene with 3.0 weight. % 1-hydroxyethyl-2-heptadecyl imidazoline, 0.5 weight. % aluminum chloride and 0, -2% thermal stabilizer Santonox mixed on rollers for 7 minutes at 155 ± 5 ° C. The resulting composition has a p of 3.0 -10 ° Ω at 20 ± 3 ° C and a relative humidity of 65 ± 5%, I 10 Ohm-cm at 20 ± 3 ° C and has (266 kgf / cm, (p 140 kgf / cm and S 250%. PC samples of the composition after aging in A-76 gasoline for 20 days at room temperature is 1, Ohm, i.e. antistatic properties are maintained. PriAer 6. High density polyethylene with 3, 0 wt.% 1-hydroxyethyl-2-heptadecylimidazoline, 5 wt.% Aluminum chloride and 0.2 wt.% Of the santonox thermal stabilizer are mixed for 7 minutes on rollers at 155 ± 5 ° C. The resulting composition has J 7.6 -10® ohm at 20 ± 3 ° С and from relative humidity is 65 ± 5%, /3.3-ohm-cm at 20 ± ± 3 ° С and has (kgf / cm, 125 kgf / cm and 135 135%. About samples of the composition after exposure to A-grade gasoline 76 for 20 days at room temperature is 5.0 to 10 ohm, i.e. antistatic properties are retained. Example 7. High density polyethylene with 3.0% by weight of 1-hydroxyethyl-2-heptadecylimidazoline, 1 weight. % alumina and 0.1% by weight of the heat stabilizer diafene HH are mixed for 7 minutes on rollers at 155 ± 5 ° С. The resulting composition has about 2.5-10 ohms at 20 ± 3 ° С and relative humidity of 65 ± 5%, ruz, 1 -10 ohm-cm at 20 ± ± 3 ° С and has (257 kgf / cm, br 130 kgf / cm and 180% .j. samples of the composition after aging in A-76 gasoline for 20 days at room temperature is 8.0-10 Ohm, i.e. antistatic properties are retained. Example 8. Polyethylene is high density with 3 wt.% oxyethylated on 5 mol of monoethanolamide fatty acids fraction of Syu-Ci6, 1 wt.% chloride aluminum and 0.1 wt.% thermo stabilizer diafen NN mixed 7 min on rollers at 155 ± 5 ° C. The resulting compound It has a J-3.8-10 ° Ω at 20 ± 3 ° С and a relative humidity of 65 ± 5% and a p of 4.0-10 Ω-cm at 20 ± ± 3 ° С has a bg 240 kgf / cm b /, 150 kgf / cm and .200% / 0 sample composition after exposure to A-76 gasoline for 20 days at room temperature is 6.0-10 Ohm, i.e. antistatic properties are retained. 9. High density polyethylene with 3 wt.% Ethoxylated on 5 mol of monoethanolamide fatty acids fraction CID-Ci6..5 weight. % aluminum chloride and

0.1 weight. % heat stabilizer diafena HH mixed 7 minutes on a roll mill at 155 ± 5 ° C. The resulting composition has about 2.5

10 Ohm at 20 ± 3 ° С and relative humidity 65 ± 5% and Ru 8.0-101 Ohm-cm at 20 ± 3 ° С and has 230 kgf / cm2, b p 120 kgf / cm

and - 120 ° / o.pg samples of the composition after aging in A-76 gasoline for 20 days at room temperature is 2.0 10 ohms. those. anti-static properties are maintained.

Example W. High density polyethylene with 3.0 weight. ° / about trimethyloctadecylammonium acetate, 0.5 weight. % aluminum powder and 0.1 weight. % heat stabilizer diafena HH mixed 7 min on rollers at 155 ± 15 ± 5 ° С. The resulting composition has a D of 3.4-109 ohms at 20 ± 3 ° С and a relative humidity of 65 ± 5% and Р 1, ohm-cm at 20 ± 3 ° С and has

 CGS / CM2, (E, 132 KGS / CM2 and, 180%. Q

D samples of the composition after exposure to A-76 gasoline for 20 days at room temperature is 1.810 Ohm, i.e. antistatic properties are preserved.

Example 11. High density polyethylene with a weight of 3.0. % trimethyloctadecylammonium, 1 weight. % aluminum chloride and 0.1 weight. / o heat stabilizer diafena HH is mixed for 7 minutes on rollers at 155 ± 5 ° С. The resulting composition has 6.6 10 ohms at 20 ± 3 ° C and a relative humidity of 65 ± 5% 3.9 10 ° ohm-cm at 20 ± 3 ° C and has b.,. 250 kgf / cm2, br 130 kgf / cm and 6 270%. D samples of the composition after exposure to A-76 gasoline for 20 days at room temperature are 6.0-10 Ohm, i.e. antistatic properties are preserved.

Example 12. High density polyethylene with 5.0 weight. % of the mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenyl phosphate (95: 5), 5.0 wt. % aluminum About udry and 0.1 weight. % heat stabilizer diafena HH is mixed for 7 minutes at 15 min at 155 ± 5 ° C. The resulting composition has () 6.0-10 Ohms at 20 ± 3 ° C and a relative humidity of 65 ± 5% and j 1.0-10 Ohm-cm and 20 ± 3 ° C and has 220 kgf / cm2.0 / 145 kgf / cm and 6 170%. P samples of the composition after exposure to A-76 gasoline for 20 days at room temperature are 8.0-10 Ohm, i.e. retain antistatic properties.50

Example 13. Low density polyethylene with 0.5 weight. % mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenyl phosphate (95: 5), 0.2 wt. % alumina and 0.1 weight. % heat stabilizer diafena HH mixed 7 min on rollers at 135 ± 5 ° C. The resulting composition has J3 5,010® Ohms at 20 + 3 ° C and a relative humidity of 65 ± 5% and P l, 5-10 Ohm-cm at 20 ±

± 3 ° С and has 120 kgf / cm2, p 115 kgc; c

CM and 500%. PS samples of the composition after exposure to gasoline A-76 for 20 days at room temperature is 9, 0-10 ° Ohm, i.e. antistatic properties are preserved.

Example 14. Low density polyethylene with 2 wt. % mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenyl phosphate (90:10), 2 wt. % aluminum powder and 0.1 weight. % heat stabilizer diafena HH mixed 7 min on rollers at 135 ± 5 ° C. The resulting composition possesses 2.6-10 Om at 20 ± 3 ° С and relative humidity of 65 ± 5% and J3 9.0 - 10 "Ω-cm at 20 3 ° С and has 6 tons 115 kgf / cm2, (5p 116 kgf / cm and (5 510 / o. Samples of the composition after exposure to A-76 gasoline for 20 days at room temperature is 7.6-10 Ohm, i.e., antistatic properties are preserved.

Example 15. A copolymer of ethylene with a-butylene with 6 wt. % mixture of sodium 2-ethylhexylphenyl phosphate and di- (2-ethylhexyl) -phenylphosphate (95: 5) and 3 wt. % aluminum chloride is mixed for 7 minutes on a roll mill at 155 ± 5 ° C. The resulting composition has 4.0-10 "ohms at 20 ± 3 ° C and a relative humidity of 65 ± 5%, ir 1.2-10. Ohm-cm at 20 ± 3 ° С and has b.200 kgf / cm br 140kgs / cm and. 150%. P samples of the composition after exposure to gasoline A-76 for 20 days at room temperature is 5.0-10 ° Ohm, i.e. antistatic properties are preserved.

Example 16. A copolymer of ethylene with propylene with 4 weight. % of a mixture of 2-ethylhexylphenylfoss sodium and di- (2-ethylhexyl) -phenylphosphate (95: 5), 2.0 wt.% alumina and 0.1 wt.% tern. stabilizer diafena HH are mixed for 10 minutes in a heavy mixer type at 160 ± 5 ° C. The resulting composition has a J3j of 2.2-10 Ohms at 20 ± 3 ° С and a relative humidity of 65 ± 5% and Р 9.8-109 Ohm-cm at 20 ±; 3 ° С and has ..125 kgf / cm2, br 145 KGS / CM2 and .380%. The p samples of the composition after aging in A-76 gasoline for 20 days at room temperature are 9.0 ~ 10 Ohm, i.e. antistatic properties are preserved.

Example 17 (control). High density polyethylene with 3.0 weight. % mixture of sodium di- (2-ethylhexyl) phosphate (2-ethylhexyl) phosphate (95: 5) and 0.2 wt. The% Santonox Thermal Stabilizer is mixed for 10 minutes in a heavy type mixer at 155 ± 5 ° C. The resulting composition is 3.8-10 Ohm at 20 ± 3 ° C and a relative humidity of 65 ± 5%, about 6.0-10 Ohm-cm at 20 ± 3 ° C and has (210 kgf / cm, & p kgf / cm2 and 6 200%. JO of the samples of the composition after exposure to NfapKH A-76 gasoline for 20 days at room temperature is 2.5 to 10 ohms, i.e. it is not practical that they have antistatic properties.

These antistatic compositions based on the BTii / ieiia homo or sonolmer exhibit a J3 or ten 10 -10 ° Ω at a temperature of 20 ± 3 ° C and a relative humidity of 65 ± 5%. RU is on the order of 10-10 ohm-cm nrn room conditions (temperature 20 ± 3 ° С) and have 1 5-266 kgf / cm (5p kgf / / cm and g, 135-510%. PS samples and the proposed antistatic composition after contact with A-76 gasoline for 20 days; -; At room temperature, it is 10-102 Ohms compared to Cj or Om for a known antistatic poly-dimensional composition that does not contain aluminum powder or inorganic aluminum compounds.

The annual economic effect from the use of the proposed antistatic composition in the production of plastic gas tanks for vehicles, issue8

Kae.myh Gorky Automobile Plant, will be 3118300 rubles.

Claims (2)

1. RCM Chemistry, 1974, Le 17, C 945. 2. USSR Author's Certificate No. 353563, C 08 L 23/06, 1970.