SU1454816A1 - Rubber mix composition - Google Patents

Abstract

The invention relates to the rubber industry, in particular to the rubber mixture, and can be used in the manufacture of rubber products, tires, shoes. The invention makes it possible to increase the rate of vulcanization of the rubber mixture and to improve the meganical properties of the rubber from this mixture due to the use of the cubic residue of the production of furyl alcohol (BER) as a dispersant. The mixture according to the invention contains the following components, ma.ch .; rubber 100; sulfur 1.5-2.5; zinc oxide 3-5; vulcanization accelerator 0.4-1.8; carbon black 40-50; COB 2-5. 10 tab. (Ls

Description

one

The invention relates to rubber industry, in particular to the rubber mixture, and can be used in the manufacture of rubber products, tires and shoes.

The aim of the invention is to increase the speed of vulcanization of the rubber mixture. And improve the mechanical --- properties of rubber from it.

In the proposed mixtures, butadienemethyl styrene rubber (SKMS-ZOARK), butadiene nitrile rubber (SKN-40), isoprene rubber (SKI-3), butadiene rubber (SKD), sulfur, zinc oxide, vulcanization accelerators — 2-mercaptobenzthiazole (capto ), di (2-benzthiazolyl) disulfide10

15

(altaks), N-cyclohexyl-2-benzthiazolylsulfenamide (sulfenamide C), technical carbon with a specific geometric surface 93-103 (DG-100), 45-60 m2 / g (PM-50), 75-82 (PM -75), the dispersant is a waste of biochemical production - the vat residue of the production of furyl alcohol.

VAT residue (BER) is a dark brown liquid with a density of 1115 kg / m,%:

Resin 65-68

Furyl alcohol 16-18

Pentadiols9-10

Tetrahydrofuryl

alcohol1-2

4:; and

SL

four

00

ABOUT)

30 cSt 33 сПз -32 С -76 С

ten

15

31454816

Methylfuryl alcohol 1-1.5 furfurol0.4-0.5

Impurities1J 2-117

BER is characterized by the following

Azateli:

Kinematic to bone

Dynamic viscosity

Temperature zestgeani

Glass transition temperature

Example 1, In table. 1 shows the known and proposed reyny mixtures based on KMS-ZOARK rubber (mixtures 2 and 6 illustrate the output of the proposed BER dosage interval).

In tab. 2 shows the properties of rubber from mixtures based on rubber SKMSSARK.

PRI me R 2.

In tab. 3 shows the compositions of the known and proposed mixtures based on SKN-40 rubber (mixtures 10 and 14 illustrate going beyond the boundaries of the DOSE DOSE interval).

In tab. 4 shows the properties of rubber from rubber-based mixtures.

SKN-40.

Froze

In tab. 5 shows the compositions of the known and proposed rubber mixtures based on rubber SKI-3 (mixtures 18 and 22 illustrate. Moving beyond the limits of the dosage range of BERs).

In tab. 6 shows the properties of mixtures based on rubber SKI-3.

20 25

thirty

35

PRI me R 4.

In tab. 7 shows the compositions of rubber mixtures based on rubber SKD.

Properties of mixtures based on rubber SKD are given in table. eight.

PRI me R 5.

In tab. 9 and 10 are given characterizing the decrease in the spread of the values of the index of the strength of rubbers from the proposed mixture. The composition of the mixtures corresponds to those given in table. 1-7.

Claims (1)

Invention Formula  The rubber mixture based on carbon chain rubber, including sulfur, 0 zinc oxide, a vulcanization accelerator, carbon black and a dispersant, characterized in that, in order to increase the vulcanization rate of the rubber mixture and to improve the mechanical properties of rubber from this mixture, as a dispersant it contains vat: residue of the production of furyl alcohol in the following ratio of components, wt.h .: rubber | 00 Sulfur II Zinc oxide 7 1 Vulcanization accelerator and, 4-1, o Technical carbon Vat residue from the production of furyl alcohol thirty 40-50 35 2-5 Table 1 SKMS-30 ARK rubber Sulfur Altax Zinc Oxide Stearin Technical carbon DG-100 COB 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 2.0 2.01.81.8 1.81.8 5.0 5.0 1.5 40.0 40.0 5.0 1.5 .1.5 5.0 5.0 5.0 3.0 4.0 40.0 40.0 40.0 40.0 45.0 45.0 2 ,,, 08 3.0 1.5 .1.5 5.0 5.0 5.0 5.0 3.0 4.0 5.0 3.0 14 13 13 14 13 Induction period of vulcanization, min, at IZ C14 Cure rate units Vcc / min 3 Optimum vulcanization time, min 80 Strength at rupture, MPa 29.5 24.5 30.2 30.5 30.6 28.0 29.8 30.1 Relative elongation,% 560 510 80 70 70 13 eight 70 12 ten 60 70 70 690 690 690 620 670 780 34 34 34 34 34 34 79 79 74 78 78 78 Elasticity,% 34 34 Resistance tear, kN / m. 56 53 Resistance multiple stretching () thousand cycle 690 690 690 620 670 780 34 34 34 34 34 34 79 79 74 78 78 78 1.4 1.35.8 6.8 4.5 3.25; 5 6.0 Heat aging (SO - 72 h) by durable. TI, K Relative elongation, K 0.740.74 0.75 0.76 0.76 0.73 0.75 0.74 0.640.63 0.66 0.66 0.66 0.60 0.64 0.65 Table3 KauchukSKN-40 100 100 Sulfur1.5 1.5 Stearin1,5100100 100 100 100 100 1.51.5 1.5 1.51.8 1.8 Table 2 13 13 14 13 13 12 eight ten 70 70 70 60 70 70  30.2 30.5 30.6 28.0 29.8 30, 690 690 690 620 670 780 34 34 34 34 34 34 79 79 74 78 78 78 Induction period of vulcanization, min., At W C 13 Vulcanization rate, unit of cc / min 5 Optimum time of vulcanization, min. AO Strength at break, MPa 35.5 Relative elongation,% 550 Elasticity,% 12 Resistance tear, kN / m 72 Resistance multiple stretching (e, 150%); thousand cycle Heat aging (100 ° 72 h) strength, K relative elongation. 12 40 32.5 540 12 71 4.2 4.1 0.89 0.85 77757,06,5 7 88 1488.5 35 3535 303535 36.3 36,236.0 35.0-35.936 610 620610 680630620 13 14 14, 14 13 14 87 89 92 89 8587 10.2 10.5 13.1 12.5 9.5 Yu, Ou90 0.91 0.91 0.80 0.85 0.9 elongation, ° ...- i- --1Ta6itsv4 13 12 7 10 11 36 25 25 15 27, 0 26.5 27.5 500 500 540 39 36 39 96 90 98 36 38 13 12 28.0 28.0 70580 39 39 99100 39 10 24.9 520 32 85 0.59 2.8 0.42 2.1 0.41 0.53 SKD amide 100 2.0 0.7 2.0 100,100 2,0.2,0 0.40.4 18 12 18 13 4.85.0 5.2 A o 0.57 0.56 0.50 0.65 0.690.51 Table of faces7 rubber, composed of a mixture of 2728 100100100 2,02,02,0 0.40., 40.4 Table8 ten ten 34 35 26 40 Resistance to repeated stretching (150%), ths. Cycle. Heat aging (100 -72h) for strength, Ki by relative elongation-. niyu. Kg Properties of rubbers based on SKMS-ZOARK The concentration of cross-links, PS 10, cm Sulfur content,% of rubber content Characteristics of the non-uniformity of the vulcanizate g for tear resistance (number of test samples N 60): mean selective tensile strength, f, CL, standard deviation, G, o; 8 3.8 3.8 4.0 1.6 0.64 0.67 0.67 0.68 0.68 0.68 0.72 0.73 0.73 0.71 T a b l and c. a 9 39 1.33 36 35 35 35 1.32 1.33 1.33 1.32 24.9 27.9 27.9 27.8 26.4 15 1454816 The parameters of the structure and properties of vulcanizates 2.7 3.1 2.0 1.9 1.9 3.0 MPa coefficient of variation ,,% 9.9 12.5 7.1 6.9 6.5 11.4 SKD-based rubber properties The characteristics of the heterogeneity of the vulcanizate strength: average strength of f, Mna, standard deviation, C, MPa ,. the coefficient of variation , % , % sixteen Continuation of table 9 3.1 2.0 1.9 1.9 3.0 Table 10 13.8 15.8 15 15 15 14,6 2.1 1.53 1.55 1.5 2.2 15.2 9.8 .9.8 9.9 15.1