SU731780A1 - Organosilicon cold-curing composition - Google Patents

Abstract

SILICA ORGANIC COMPOSITION OF THE COLD CURING, including a low molecular weight ororganic anisoloxane with terminal hydroxyl groups, a filler, a structural agent - a derivative of tetraethoxysilane and a confirmation compound - octoate octoate, which is the same way, it is the other way; contains as a structuring agent a silicone compound of the general formula (tizHjOlj-Sfi-B Hj where Jl is dH dH d OOSL 3 tiHj dHj-dH, - iroQC (; tiHj-c H dH-ci-oo (i (dH; dH, Oh, dH,. $ (L –d dH-6-ood (dH,), k CO in the following ratio of components, wt.h .: Low molecular weight 00 organopolysiloxane o. With terminal hydroxyl groups 100 Filler1-100. Specified structuring agent5-10 Octoate of tin1 1 | 2

Description

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IfiefissKenEPTiii The invention relates to the rubber industry, in particular to the development of a cold-curing silicone composition. The well-known cold-curing silicone composition, including low-molecular-weight organopoli siloxane with terminal hydroxyl groups, a filler, a structuring agent — a derivative of tetraethoxy silane (e.g., alkoxysilane or alkyl polysilicate) and a hardening catalyst — oct, for example, is for example, it is, for example, a pro- cept, for example, it is, for example, a pro- cept, for example, we’re apt. 1G. Rubber obtained from a known composition, have a low relative elongation and poor adhesion properties. The aim of the invention is to increase the relative elongation and adhesion properties of rubbers from such a position. The goal is to achieve that cold-cure silicone composition comprising a low-molecular-weight organopolysilox with hydroxyl-terminated groups; tin octoate, as a structuring agent, contains the organosilicon compound of the general formula T (d;, H, o), fHj Ji-dH dH- (l-OOdH ,; dH, -dHj-tiH2 i ood (dH,) dH, -dH dH-d-ood (dH,), j dH j - (j dH-d-ood (with the following ratio of components, wt.h .: Low molecular weight organopolysiloxane with terminal hydroxyl groups) Filler Specified structuring agent Tin octoate As the organopolysiloxane lemer, the polymer of total rmula II dHj dH, Ho-t is used; io 4-5ii-o- | -H If-1/7 L dHj l J --CiHj; -dsHj or -dHz-fdH-dHz) -, fO-700; t-5-70;. As a filler used are aerosil, titanium dioxide, white carbon black. For the preparation of the composition, the polymer is mixed with a filler in a paint mill or mixer for 6-2 hours at room temperature. Then a structuring agent and a tin octoate catalyst are introduced, the mixture is stirred for 30-60 seconds and used for its intended purpose. Example 1. A mixture is prepared consisting of 100 g of polymer with a viscosity of 20 P of formula II, where R is -CHj, 5 g of aerosil-300 and 15 g of titanium dioxide. The mixture is mixed well in a spray pot for 12 hours. After that, 10 g of a structuring agent of formula I, where -CH-dH-d-oodH, is introduced into the resulting mass. and 1 g of tin octoate. The vulcanization is carried out at room temperature for 8. h. The properties of the vulcanizates are listed in the table. P. p and m e p 2. In the paint test, the composition is prepared as described in paragraph 1. As a structuring agent, a compound is used, form I, where R is tiH2-c Hg-5 i oOd (cfHj) J The properties of vulcanizates are given in the table. Example 3. A composition is prepared as described in example 1. 8 As a structuring agent, I take a compound of formula X where. j -ciH clH-cl-ooti (dHj) j I 1n, The properties of the vulcanizates are listed in the table. An example. A composition is prepared as described in Example 1. A compound of the formula I is used as structuring agent, where dH,. - d SL-c - ood (dHjjj ciHj The properties of the vulcanizates are shown in Table. Example 5. A mixture is prepared as described in Example 1, after which 8 g of a structuring agent of formula I is introduced into the resulting mass, where Hj J2-dH cJH -d-ooriK: I dHj and 1.2 g of tin octoate. The properties of the vulcanisates are shown in Table 1. Example 6. A mixture is prepared for described in Example 1, after which 12 g of structuring agent of formula 1 are introduced into the mass. where .r-dHz -dH, - ii oodfdHj), and 0.8 g of tin octoate. Properties vul, kanizatov are given in the table. Example 7. A composition is prepared consisting of 100 g of a polymer with a viscosity of 130 P of formula II, where R is dH2- (dH-dH2f 5.g of titanium dioxide, 10 g of structuring agent of formula I, where K is dH with Hd -oodH, I dHj, and 1r tin octoate. Vulcanizate properties are shown in Table 1. Example 8. A composition is prepared as described in Example 7, followed by 8 g of a structuring agent of formula I, where dH, R is d dH-d-ooc (dfljj, 1.2 g of octoatanol. The properties of the vulkaisates are shown in Table. Example 9. A composition is prepared, as described in Example 7, after which 12 g of Formula I Formula I, where; R-dHz-dHz -5 ((and D, 8 g about tin oxide. The properties of the vulcanizates are listed in Table 1. Example 10. A composition is prepared as described in Example 5. A forc compound is taken as a structuring agent (Halls I, where the (, R CH –CH) properties of the vulcanizates are given in the table.; er C. Composition is prepared as described in Example 5. A compound of the formula 1 is used as a structuring agent, where dHj ije-dH dH-c -ood (clw) 3 7317 The properties of the vulcanizates are shown in the table. Example 12, Composition is prepared as described in Example 5. A compound of the formula I is used as a structuring agent, where dH-tiHz tiHj C-d dH -c-ood (, 1 I. Vulcanizate properties are given in table. 5 10) 5 0ft. EXAMPLE 13 (control) Prepare a composition as indicated in Example 1, but ethyl acetate-40 is used in an amount of k wt. Hours as a crosslinking agent, tin octoate is added as a catalyst. the number of 0, t May. h. The properties of volcanization are given in the table. EXAMPLE T (control). A composition is prepared as indicated in Example 5, but ethyl silicate is used as a structuring agent, 0 in wt.h., and tin octoate is used as a curing catalyst. number 0, ma.h. The properties of volcanization are given in the table,

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 731780 9.10

As can be seen from the table, cold cure with increased

you, from the proposed composition have a relative elongation and improved-i

relative elongation by 2-3 times by excellent adhesion. This in turn

This indicator, which is known, has the ability to use them for

rubber. At the same time, the adhesion of the increase in the production of highly elastic adhesive

up to 10-12 kgf / cm while maintaining the compounds able to withstand

Other material properties. Significant mechanical stresses. In this way, the proposed lumps, without destroying these joints, make it possible to obtain rubber.

Claims (1)

SILICON ORGANIC COMPOSITION OF COLD CURING, including low molecular weight organic hydroxyl-terminated anopolysiloxane, a filler, a structuring agent - a derivative of tetraethoxysilane and a "solidification - tin octoate catalyst, characterized in that the rubber is made from this and increases the relative elongation contains as a structuring agent a silicon organic compound of the general formula ii, where L - CH = bH d OOSH _T ; I - ₃ --yn - Sn ₂ - s * m _g - yn, I -dH = (1H-b-00 (! (s! nD; dH = dH, Sn, ι I -6 = ΰΗ - (! - οο [ί (6Η,) ₇ dH ₃ in the following relation component product, parts by weight: Low molecular weight organopolysiloxane with trailer hydro xyl groups 100 Filler 1-100 . Indicated to the structure-- generating agent 5-10 Tin Octoate 1-1,2 SU ..., 731780 ί ..... I