SU630885A1 - Vulcanizable rubber compound based on unsaturated rubber - Google Patents

Abstract

The vulcanizable rubber composition based on unsaturated rubbers comprising oligomeric adhesion additive in combination with the structuring agent of t n and h and w-u and in that, in order to increase the adhesion of the rubber of the mixture to brass metal ^ ARDS, inas adhesive additives the mixture contains oligodien with terminal epoxy or isocyanate groups in combination with a structuring agent selected from the group: rezotropin, and tert-butylphenol formaldehyde resin, c-octylphenol disulfide-formaldehyde resin, and naftionovokisly cobalt acetate or the following component ratio, mae.ch .: Nenasyschennyykauchuk100Oligodien terminated epoxy or isocyanate groups 5-15 structuring agent 0.3-1.0 Naftionovokisly or acetate, cobalt '0.1-1.0 (L

Description

about

00 The invention relates to the rubber industry, in particular to the processing of rubbers, and can be used in the tire industry (known rubber compound attaching rubber to metal), the strength of which is achieved by adding an oligomeric additive, for example rubber with functional groups. in combination with the structure (curing agent) LIJ, it uses rubber with hydroxyl groups. However, the use of such rubber in the compounding of rubber for rubberizing the steel cord of the tire breaker of automobile tires is impossible due to their poor compatibility with general purpose rubber used in other tire elements. In this case, the introduction of additives of polymers with reactive groups into breaker rubber causes a significant deterioration in their technical properties. The purpose of the invention is to increase the adhesion of rubber from this mixture to the brass-plated steel cord. This aim is achieved in that as the adhesive additive comprises a vulcanizable rubber cm oligodienes terminated EPO Sydney or isocyanate groups in combination with Agen structurant is selected from the group: rezotropi P-tert-butilfenolformaldegidna ClvIola, h -oktilfenoldisulfidformal degidna resin, and further on cobalt thionic acid or acetic acid in the following ratio of components, wt.h .: 10–0 unsaturated rubber, oligodien with end EPOXY1 or isocyanate groups 5–15, structuring agent t 0.3-1.0, naphthionic acid or uksu cobalt nitrate 0.1-1.0. The proposed oligodienes are introduced into rubber mixtures of the following composition, mac.ch .: Unsaturated rubber (NC or SKI) 100.0 Sulfenamide C 0.3-1.0. Sulfur 3,0-8,0 Zinc white 4,0-8,0 N-Nitrosodiphenylamine 0,5-1,0 Stearin1,0-3,0 Antioxidants of type 4010NA or diafen FP0.5-1.5 Neozon D. 0.5-1.5 Soot PM-100 40.0-70.0 Rubber mixtures are made in two stages in a rubber mixer with a capacity of 2 liters, the duration of the first stage at 60 rpm is 4 minutes. Oligodienedase cyanate or oligodient diurethanediopec together with adhesion promoters (compounds of variable alability) are introduced into the first stage. temperature at the end of the blend cycle is 40-145 0. Compounds that perform the function of a stirring agent: resotropium or tert-butylphenol formaldehyde mol - {phenophore B), or .ti-octylphenol sulphide-formaldehyde resin (octofor 10 S), or epoxy bold D-5, together with the vulcanizing group (sulfur, eulfenamide c), the rubber mixer is introduced into the second section at 30 rpm). Duration 2 min. The temperature at the end of the mixing cycle is 105-llO C, Example 1. The rubber mixture is based on 100 mash. natural auchuka is introduced, m.ch .: oligodienisocyanate 5-15, resotropin 0.31, 0, cobalt naphthionic acid 0.11, 0. The composition of the mixture, May, h .: Natural rubber (NC) 100 Sulfenamid0.4 Sulfur6.0 Zinc white 5.0 N-Nitrosodiphenylamine0, 7. Oligo-di-di-isocyanate 5–15 Resotropin 0.3–1.0 L naphthionic acid, cobalt 0.1–1.0 Stearin2.0 Antioxidants type 4010IAA or diafen FP1.0 neozone, 0 Soot PM-100 50.0 Amount of resotropin is calculated based on the concentration of functional groups oligodiene. The ratio of the components of a modded system is 1: 1. The effect of oligodandiisol ianate, resotropin and naphthionic acid cobalt on the bond strength of mettshlokord increased aggregate strength of 39 l 55 with rubber based on NC is shown in Table. 1. The effect of oligodiene diisocyanate, resotropin and cobalt naphthionic acid on the bond strength of a metal cord of aggregate strength of 39 liters 25 with rubber based on NC is shown in Table. 1. The effect of oligodiene diisocyanate, resotropin and naphtha of yellow cobalt on the strength of a metal cord of increased aggregate strength 39–25 with rubber based on NC is shown in Table. 2. The effect of oligodiene diisocyanate, resotropin and cobalt naphthionic acid on the bond strength of a high modular strength metal cord LH 39H25 with rubber based on NC according to Casano; 3 Example 2. In the rubber mixture on the basis of 100 mach. SKI-3 rubber is injected, m.ch.: oligodiene diisocyanate 5-15, resotropin 0.3-1.0, naphthylic acid cobalt 0.1-1.0. The composition of the mixture, ma.h .: SKI-3 (isoprene rubber) 100 Sulfenamide C 0.4 U Sulfur - 6 Zinc white 5 N-Nitrosodiphenyls n 0.7 Oligodienediiso-15 cyanate 5-15 Cobalt Na-thiophosphate 0.1-1.0 Resotropin . 0.3-1.0 Stearin2,0 20 Antioxidants type 4010NA or diafene FP1.0 Neozone, 0 Carbon black PM-100 50.0 25 The amount of resotropin is calculated based on the concentration of functional groups of oligodien. The ratio of components of the modifying system 1 and 1: 1. The effect of oligodiene diisocyanate, resotropin and naphthionic acid co-sut on the bond strength of a metal cord with a total aggregate strength of 39–25 with rubber based on SKI-3 is shown in Table. 4. Example Z.V rubber mixture based on 100 mach. NK introduced t, ma.ch .: oligodiene diisocyanate 5-15, p-tert-butylphenol-form resin 0.3-1.0, naphthionic acid 40 kobosht in an amount of 0.1-1.0. The composition of the mixture, mac.:N NK100 Sulfenag iodine Z0,4 Sulfur6,045 Zinc white 5.0 N-Nitrosodiphenylamine 0, 7 Oligo-di-di-isocyanate 5-15 50, Cobalt naphthionic acid 0.1-1.0 ft-Tert-butylphenol-formaldehyde for resin (phenophore B) 0.3-1.0. Stearin2, O Anti-heat boosters type 4010NA or diafen FP1.0 Neozone, 0 Soot PM-100 50.0 Amount of p-tert-butylphenol formhoid resin calculated iho from the concentration of the functional 45 group Psm lome pr NK na psm he pho Sponsor 1: cci mi me pr NK 0.2 eDizo bal, nn oligodiene. The ratio of compotes of the credit system is 1: 1. The effect of oligodiene diisocyanate, ret-butylphenol-formaldehyde film (phenophore B) and naphthionic oxide of cobalt on the bond strength of the 39l25 rubber aggregate with rubber based on is shown in Table. 5. Example 4.b rubber compound basis. 100 ma.ch. NCs are introduced, as follows: oligodiene diisocyanate 5-15, ctilfenol disulfide-formaldehyde la (octofor 10 S) 0.3-1.0 phosphate cobalt 0.1-1.0. The composition of the mixture, mac.:NK100 Sulfenamide C 0.4 Sulfur6.0 Zinc white 5.0 N-Nitrosodiphenylamine 0.7 Oligodiene diisocyanate 5-15 Cobalt naphthionic acid 0.1-1.0 P-Octylphenol sulfide formal Formaldehyde resin (octophore 10s) 0.3-1.0 Stearin2.0 Antioxidants of type 4010NA or diafen FP1.0 Neozon D,. 1.0 Soot PM-100 50.0 The number of h-octylphenol disulfide aldehyde resin is calculated one from the concentration of oligodiene functional groups. The ratio of ponentov modifying system. The effect of oligodienediisocyanate, ktilfenolindisulfidformaldehyde flax (octofor 10s) and naphthionome cobalt on the bond strength of an allokord of increased aggregate 39l25 with rubber based is shown in Table. 6. Example 5. In the rubber mixture based on 100 mach. NK, containing 5-0,75 ma.ch. zpoxy resin 5, injected, m.ch.: oligo-digesianate 5-15 and acetic acid 0.1 to 1.0. The composition of the mixture, ma.h .: NK100,0 Sulfenamide C 0,4 sulfur 6,0 Zinc white 5.0 N-Nitrosodiphenylamine 0.7 Ol 1 year diisocyanate 5-15 Cobalt acetic acid 0,1-1,0 Epoxy resin ED-50,25 -0.75 Stearin2,0 Antioxidants type 4010NA or diafen OP. 1.0

Neozon, 0

Soot PM-100 50.0

The amount of epoxy resin is calculated based on the concentration of oligodiene functional groups. The ratio of components of the modifying system is 1: 1.

The effect of oligodiene diisocyanate, epoxy resin ED-5, and cobalt acetate on the bond strength of a metal cord with a total aggregate strength of 39–25 with rubber based on NK is shown in Table. 7

Example 6, In the rubber mixture on the basis of 100.ma.ch. NK vvo, dt, wt.h ,: oligodienediurethanedepoxide 5-15, resotropin 0.3-1.0, cobalt naphthionic acid 0.1-1.0.

The composition of the mixture, ma.ch .:

100

NC 0.4

Sulfenamide C 6.0

Sulfur 5.0

Zinc white

M-Nitrosodiphenylamine 0.7

Ol igodendiuretana5-15

diepoxide

Nafthionic acid

0.1-1.0

cobalt

0.3-1.0

Resotropin

2.0

Stearin

Vs ostariteli

type 4010NA or

1.0

diafen OP

Neozon, 0

Soot PM-100 50.0

The amount of resotropin calculated based on the concentration of functional groups of oligodien. The ratio of components of the modifying system is 1: 1.

The effect of oligodandiuretic di-epoxide, resotropin and naphthionic acid cobalt on the bond strength of a metal cord of increased aggregate strength 39–25 with NK-based rubber is shown in Table. eight.

Mechanical properties of rubbers on the basis of 100 mach. NC listed in Table. 9.

Mechanical properties of rubbers on the basis of 100 mach. NC listed in Table. ten..

In contrast to the known mixture, the proposed rubber mixture provides higher strength of rubber with metal cord (brass-plated), especially at elevated temperatures and repeated deformations, increased mechanical and fatigue properties of rubber, while in terms of technological properties, the proposed rubber mixtures have advantages in resistance to premature vulcanization compared to the well-known rubber compound.

Table 1

50.0

Known mixture

Oligonetizedo100

300

25.0

OligoDeizo Continuation of the table. one

50.0

Known mixture

OligoDeizo48, 0

50.0

ten

630885 Table 3

25.0

100

300

Table 4

80

24.0 280

100

27.0 300

Known mixture

Oligodienediisocyanate

ht re bbl il but no formaldehyde resin (phenofor B)

Cobalt naphthate

Oligo-diene diisocyanate together with p-tert-butylphenol-formaldehyde resin (phenophore B) and cobalt naphthionic acid

Continued table. four

T a b l and c a

100

25

300

340

120

28

350

160

500

300

1878

Samples

not once- 750

collapse

Known mixture

Oligodienedase cyanate

And octylphenol disulfide formaldehyde

Known mixture

Oligodienediisocyanate

Epoxy resin ED-5.

Cobalt acetate

Ol igodiye Ndi and 3 ocyanate together with ED-5 epoxy resin and cobalt acetic acid

T a b, l and c a b

50.0

25,0300

100

28.0340

120

53.0

Table

Known mixture

Oligo-diuretic Properties Plasticity of 0.35 0.41 GOST 415-53. Mooney scorch time at, min

Svoystbavulkanizatov

Stress at 300% elongation, kgf / cm

155

Table 8

25

100

300

Table

163

161 164

160 rubber mix / 0,36 0,36 0,35 0,35

Tensile strength at break,

Rubber properties

Plasticity at 0.35 0.36 GOST 415.-53

podvulkanipo Muni at,

14 16 Vulcanizate properties

Stress at 300% elongation, kgf / cm

Tensile strength at break, kGS / cm

Continued table. 9

Table 10

0.36

0.36

17

sixteen

162

160

155

257

250

255

nineteen

Relative

elongation,%

Tear resistance, kgf / cm

Hardness

GOST 263-53, u

Resistance to repeated stretching, thous.

Rubber properties

Vulcanizate properties

Stress at 300% elongation, kgf / cm

Strength at break, kgf / cm

Relative extension, %

SrPEOvlenie separation, kgf / cm Hardness according to GOST 263-53, units

Resistance to multiple stretching, thousand cycles

20

630885. Continued table. YU

450

480

479

106

105

110

72

70

68

27

28

24

Continued table. ten

0.40

0.40 0.41

18

1818

155

160

235

255

530,547

115,125

73 72

23

thirty

Rubber properties

Plasticity according to GOST 415-53

Myaway scorch time at 120 ° C, min

Volcanic properties

Stress at 300% elongation, kgf / cm

Tensile strength at break.

0.43

0.42

0.45

21

21

164

159

Claims (1)

VULCANIZABLE RUBBER MIXTURE BASED ON UNSATURATED RUBBER, including an oligomeric adhesive additive in combination with a structuring agent, characterized in that, in order to increase the adhesion of rubber from this mixture to a brass-plated metal oxide oxide or adgene in combination with a structuring agent selected from the group: resotropin, and tert-butylphenol formaldehyde resin, and octylphenol disulfide formaldehyde resin, and additionally naphtha cobalt onionic or acetic acid in the following ratio of components, parts by weight Unsaturated rubber Oligodien with terminal epoxy or isocyanate groups Structuring agent Naphthionic or acetic acid. cobalt 100 5-15 0.3-1.0 0.1-1.0 00 □ about sl