CN1092450A - A kind of sealing compositions that is used for joint or lid - Google Patents
A kind of sealing compositions that is used for joint or lid Download PDFInfo
- Publication number
- CN1092450A CN1092450A CN 94104507 CN94104507A CN1092450A CN 1092450 A CN1092450 A CN 1092450A CN 94104507 CN94104507 CN 94104507 CN 94104507 A CN94104507 A CN 94104507A CN 1092450 A CN1092450 A CN 1092450A
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- vegetables oil
- weight
- component parts
- dibutyl tin
- sealing compositions
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- Sealing Material Composition (AREA)
Abstract
The present invention relates to the sealing compositions of joint or lid, constitute by isocyanide ester, dioctyl phthalate (DOP), vegetables oil, Viscotrol C, organic tin compound or organic aminated substance.It is specially adapted to the embedding sealing of communication cable, can prevent the erosion of sealing and moisture, is to have excellent electrical properties, and chemical stability is good, nontoxic pollution-free, easy construction, low price, be beneficial to the extremely rising embedding sealing material of construction.
Description
The present invention relates to a kind of sealing compositions that is used for joint or lid.More particularly, the present invention relates to a kind of Embedding Material of communication cable joint, as, be used for the Embedding Material of phone oil filled switch joint.
As everyone knows, Embedding Material is a kind of type material that extensive use is arranged, and for example, electronics is carried out can protecting component after the embedding, makes its component not be subjected to moisture, and the invasion and attack of objectionable impurities in water and the environment reduce damage.Simultaneously, after embedding, can also play permanent haulage line, heat radiation, shockproof effect, thus can improve the complete machine performance of equipment, improve the reliability of work.Its representative instance is the connection portion that is used to protect electric wire; as; the sealing of the joint of communication cable; this method that is specifically designed to the protection cable splice is that transparent sealing shell is enclosed within the joint that has disposed; and can solidifying or the liquid of gel injects the shell of sealing, and closely link to each other with all materials that is in contact with it in the closed container.Like this, just reduced the possibility of water intrusion interface, prevented that electrical lead and other responsive joint component from making moist, thereby remained the normal working order of circuit.
The material that is used for above-mentioned joint sealing should have the excellent electric insulation performance; Should have can be compatible with all contactants; Good chemical stability should be arranged under quite wide use temperature; Should be at high temperature lax, acceptable physical strength and elasticity are arranged at low temperatures, answer nontoxicity, performance such as free from environmental pollution.In order to satisfy these requirements, the particularly requirement that seals for the appropriate cable embedding, the Embedding Material that countries in the world have released one after another and have been mixed with various differing materials.No matter these materials are in chemical stability, construct easy to maintenance and aspect such as effect, all improve a lot than old products such as the bituminous cement that uses in the past, wax, silica powders.
For example, the Minnesota exploitation discloses the polyhutadiene base polymer with manufacturing company (3M), is characterized in soft flexible, and electrical property and water-fast, moisture resistance gas cut erosion performance are good, but the cost height is unsuitable for domestic production and uses; HIT (Hitachi) and Henkel KGaA company (Henkel) etc. then disclose polyurethane material, and this class urethane macromolecular compound has good low temperature flexibility; Viscosity is low; Exothermic phenomenon is little, reacting balance; Excellent thermal shock resistance; Characteristics such as moderate cost, but its shortcoming be this material when uncured to the moisture sensitivity; (greater than 120 ℃) electrical property when at high temperature using, mechanical property descends; Its pad coefficient of expansion is higher relatively.
The purpose of this invention is to provide a kind of joint sealing that is used for, response type two-pack macromolecular material especially for the communication cable embedding, this material can be prevented the erosion to circuit of sealing and moisture effectively, if when being used for the embedding of phone oil filled switch joint, then have chemical stability under the use temperature of broad and good electrical property; And have to the people property characteristics such as nontoxic, environmentally safe; It is low, simple to operate also to have price in addition, is beneficial to the characteristics that use the working-yard.Thereby solved above-mentioned variety of issue.Present inventors through to response type two-pack macromolecular material extensively and research subtly, have been found that this class material provided by the present invention imitates for achieving the above object.Based on this point, the present invention is successful with valuable.
According to the present invention, a kind of sealing material of excellent performance is provided, mainly be the advantage that makes full use of the high-insulativity of polyhutadiene compounds, and consider the possibility of the hydroxy-terminated polybutadienes that can supply on the China market, form elastomerics with the isocyanide ester reaction.And add linking agent Viscotrol C and multiple softening agent, as dioctyl phthalate (DOP) and vegetables oil, and select suitable catalyzer.The final appearance transparent that generates does not have plasticizer migration (being that oily matter oozes out), soft, has flexible high insulating elastomer.During as the oil filled switch Embedding Material, can reach requirement comprehensively.It is specifically composed as follows:
The A component
The isocyanide ester consumption is 5-8.1 part (by weight)
Dioctyl phthalate (DOP) (DOP) consumption is 13.3-23 part (by weight)
The vegetables oil consumption is 10-30 part (by weight)
The B component
Hydroxy-terminated polybutadienes 14.6-23 part (by weight)
Viscotrol C 14.6-23 part (by weight)
Vegetables oil 26-45 part (by weight)
Catalyzer (organotin or organic 0.6-1.5 part (by weight)
Amine or its mixture)
The preparation method of the relevant present composition has no particular limits, and during use, as long as the A component poured in the B component into stir (being approximately 2 minutes), and pours the closed casing of cable splice into, wait Embedding Material curing after, get final product.
Be used for isocyanide ester of the present invention and can be liquid 4,4 '-ditane diisocyanate (MDI), also can be tolylene diisocyanate (TDI).
Being used for vegetables oil of the present invention, can be soya-bean oil, or peanut oil, or their mixture.
The catalyzer that is used for the present invention can be used metal catalyst, as organo-tin compound, they can be dibutyltin dilaurate, stannous oleate, fourth oxygen dibutyl tin, methyl ethyl diketone dibutyl tin etc., perhaps use organic amine, it can be triethylamine (TEA), triethylenediamine (DABCO), dimethylethanolamine (DMEA), tetramethyl butane diamine (TMBDA), dimethylcyclohexylamine (DMCHA), or their mixture.
Below will the present invention is further illustrated by embodiment, still, the present invention is not limited to these embodiment.
In addition, except as otherwise noted, the weight of each component is all represented with parts by weight.
Embodiment 1
A component parts by weight
Isocyanide ester 6.7
Dioctyl phthalate (DOP) 16.7
Vegetables oil 10
The B component
Hydroxy-terminated polybutadienes 20
Viscotrol C 20
Vegetables oil 26
Dibutyl tin laurate 0.6
Embodiment 2
A component parts by weight
Isocyanide ester 5.3
Dioctyl phthalate (DOP) 13.3
Vegetables oil 14.6
B component parts by weight
Hydroxy-terminated polybutadienes 14.6
Viscotrol C 14.6
Vegetables oil 30
Dibutyl tin laurate and triethylamine 1.5
(dibutyl tin laurate: three
Ethylamine=3.5: 1.5)
Embodiment 3
A component parts by weight
Isocyanide ester 8.1
Dioctyl phthalate (DOP) 23
Vegetables oil 30
B component parts by weight
Hydroxy-terminated polybutadienes 23
Viscotrol C 23
Vegetables oil 45
Dibutyl tin laurate 1
And triethylenediamine
Embodiment 4
A component parts by weight
Isocyanide ester 6.3
Dioctyl phthalate (DOP) 20
Vegetables oil 28
B component weight fraction
Hydroxy-terminated polybutadienes 18
Viscotrol C 18
Vegetables oil 40
Dibutyl tin laurate and Sanya 1.5
Ethyl diamines (3.5: 1.5)
Test result and effect from this product, it shows the chemical stability under the use temperature of broad, can keep mechanical property under good electrical property, the low temperature, and satisfied before soft, low temperature flexibility and the reaction material viscosity low, and requirement such as under the use temperature of broad, use.For the excellent properties of product of the present invention is described, the spy is described as follows the test data of the product of product of the present invention and 3M company:
(I) physicals:
Product 3M of the present invention company product
1. hardness (normal temperature) 0-1 0-1
(low temperature-18 ℃) 0-1 0-1
2. viscosity (centipoise second) 290 800
3. outward appearance (cured article) is light yellow transparent brown transparent
4. density (grams per cubic centimter) 0.939 1.064
Set time (hour) 4 (under the room temperatures) 4
6. curing time (day) 22
7. acid number＜0.02＜0.02
8. corrodibility nothing
9. flame resistivity has or not
Use temperature (℃)〉4〉4
11. storage temperature (℃) room temperature
12. water-intake rate (%) 2.74 2.88
(II) electrical property:
Product 3M of the present invention company product
1, volume resistance (Ω, CM) 0.78 * 10
137.8 * 10
11
2, specific inductivity (IMHZ) 2.88 3.26
(III) mechanical property
Product 3M of the present invention company product
1, tensile strength (KG/CM
2) 2.0 0.89
2, tear strength (KG/CM) 0.70 0.43
3, elongation (%) 155 173
4, bonding strength (KG/CM
2)
(aluminium-aluminium) 3.37 1.98
(copper-copper) 4.06 1.26
5, heart yearn is transferred to power (KG) 2.5 1.7
Although the present invention has been done to explain, and in relevant embodiment of the present invention, made further instruction, concerning those skilled in the art, by reading this specification sheets only otherwise leave the spirit and scope of the present invention and can make various variations, but should be appreciated that these variations should belong in the scope of the appended claim of the present invention.
Claims (12)
1, the sealing compositions of a kind of joint or lid is characterized in that:
A component parts by weight
Isocyanide ester 5-8.1
Dioctyl phthalate (DOP) 13.3-23
Vegetables oil 10-13
The B component
Hydroxy-terminated polybutadienes 14.6-23
Viscotrol C 14.6-23
Vegetables oil 26-45
Catalyzer: organic tin compound has
Machine aminate, or its mixture 0.6-1.5.
2, a kind of according to the said composition of claim 1, it is characterized in that:
A component parts by weight
Isocyanide ester 6.7
Dioctyl phthalate (DOP) 16.7
Vegetables oil 10
B component parts by weight
Hydroxy-terminated polybutadienes 20
Viscotrol C 20
Vegetables oil 26
Dibutyl tin laurate 0.6
3, a kind of according to the said composition of claim 1, it is characterized in that:
A component parts by weight
Isocyanide ester 5.3
Dioctyl phthalate (DOP) 13.3
Vegetables oil 14.6
B component parts by weight
Hydroxy-terminated polybutadienes 14.6
Viscotrol C 14.6
Vegetables oil 30
Dibutyl tin laurate 0.6
And triethylamine
4, a kind of according to the said composition of claim 1, it is characterized in that:
A component parts by weight
Isocyanide ester 8.1
Dioctyl phthalate (DOP) 23
Vegetables oil 30
B component parts by weight
Hydroxy-terminated polybutadienes 23
Viscotrol C 23
Vegetables oil 45
Dibutyl tin laurate
With triethylenediamine 1
5, a kind of according to the said composition of claim 1, it is characterized in that:
A component parts by weight
Isocyanide ester 6.3
Dioctyl phthalate (DOP) 20
Vegetables oil 28
B component parts by weight
Hydroxy-terminated polybutadienes 18
Viscotrol C 18
Vegetables oil 40
Dibutyl tin laurate 1.5
And triethylenediamine
6, a kind of according to the said sealing compositions of claim 1, it is characterized in that: organic tin compound is the methyl ethyl diketone dibutyl tin, dibutyltin dilaurate, stannous oleate, fourth oxygen dibutyl tin.
7, a kind of according to the said sealing compositions of claim 1, it is characterized in that: organic aminated substance is a triethylenediamine, triethylamine.
8, a kind of according to the said sealing compositions of claim 1, it is characterized in that: organic aminated substance is a dimethylethanolamine, tetramethyl butane diamine, dimethylcyclohexylamine.
9, a kind of according to the said sealing compositions of claim 1, it is characterized in that: isocyanide ester is 4,4 ' ditane diisocyanate, toluene diisocyanate.
10, a kind of according to the said composition of claim 3, it is characterized in that: the amount ratio of dibutyl tin laurate and triethylene amine is 3.5: 1.5.
11, a kind of according to the said sealing compositions of claim 5, it is characterized in that: the amount ratio of dibutyl tin laurate and triethylenediamine is 3.5: 1.5.
12, a kind of application of sealing compositions is characterized in that: it is used for the communication cable embedding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104507 CN1092450A (en) | 1994-04-26 | 1994-04-26 | A kind of sealing compositions that is used for joint or lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104507 CN1092450A (en) | 1994-04-26 | 1994-04-26 | A kind of sealing compositions that is used for joint or lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1092450A true CN1092450A (en) | 1994-09-21 |
Family
ID=5031628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94104507 Pending CN1092450A (en) | 1994-04-26 | 1994-04-26 | A kind of sealing compositions that is used for joint or lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1092450A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643623A (en) * | 2012-04-05 | 2012-08-22 | 艾伦塔斯电气绝缘材料(珠海)有限公司 | Polyurethane resin potting adhesive with high bonding strength and preparation method thereof |
| GB2534198A (en) * | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
| CN109321197A (en) * | 2018-10-11 | 2019-02-12 | 刘凤语 | Bi-component optical cable filling with sealant and its preparation method and application, optical cable |
-
1994
- 1994-04-26 CN CN 94104507 patent/CN1092450A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643623A (en) * | 2012-04-05 | 2012-08-22 | 艾伦塔斯电气绝缘材料(珠海)有限公司 | Polyurethane resin potting adhesive with high bonding strength and preparation method thereof |
| GB2534198A (en) * | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
| CN109321197A (en) * | 2018-10-11 | 2019-02-12 | 刘凤语 | Bi-component optical cable filling with sealant and its preparation method and application, optical cable |
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