Oil-resistant and high-temperature-resistant rubber

Abstract

The invention relates to the technical field of insulating materials, and provides oil-resistant and high-temperature-resistant rubber which comprises 26-30 parts of natural rubber, 18-22 parts of polyethylene oxide, 5-9 parts of glass fibers, 1-5 parts of titanium diboride and 1-5 parts of trans-1, 3-butanediol. The material is prepared from the following components in parts by weight: 1 to 5 parts of 1, 4-polyisoprene rubber, 2 to 6 parts of hydrophilic colloid, 6 to 10 parts of compatilizer, 5 to 9 parts of additive, 2 to 6 parts of aramid fiber, 3 to 7 parts of polyurethane, 10 to 14 parts of nano-zinc oxide, 2 to 7 parts of lubricant and 16 to 20 parts of styrene-butadiene. According to the rubber provided by the invention, the trans-1, 4-polyisoprene rubber and the styrene-butadiene are added, so that the rubber is extruded at a high temperature or can quickly recover to an original state, and the nano zinc chloride is added, so that the rubber is located outside and can automatically shield outside ultraviolet rays; the added polyurethane effectively improves the oil resistance of the rubber, so that when the rubber is in contact with oil liquid, the oil liquid is prevented from permeating into the rubber, the strength and modulus of the added aramid fiber at high temperature hardly change, and the high temperature resistance of the rubber is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of insulating materials, and specifically to a rubber resistant to oil and high temperature. Background Art

[0002] Silicone rubber is an excellent special rubber, which has excellent heat resistance, low temperature resistance, insulation, earthquake resistance, compression resistance, abrasion resistance and good biological properties, making it have a wide range of applications, such as construction, transportation, electronic appliances, chemical industry, biological materials and current aerospace materials, etc. Now silicone rubber can be used for a long time at -65°C to 200°C, but with the development of technology, higher requirements are put forward for its heat resistance.

[0003] In the prior art, a Chinese patent with the publication number of "CN106751900A" discloses a silicone rubber resistant to high temperature and oil, which solves the problem that the existing rubber cannot be used at high temperature by using methyl vinyl silicone rubber, polymetal organic silicone oxide, alkoxy-terminated polysiloxane, methyl ethyl silicone oil, hydroxyl silicone oil, silicon dioxide, 2-mercaptoimidazoline, methyl ethyl carbonate, diethyl carbonate, sulfuric acid, cerium powder, molybdenum powder.

[0004] However, there are still great deficiencies in the prior art, such as:

[0005] Rubber refers to a high-elastic polymer material with reversible deformation, which is elastic at room temperature, can produce large deformation under a small external force, and can return to its original state after removing the external force. However, when the rubber is subjected to large extrusion at high temperature, due to the damage caused by high temperature to the rubber, the rubber is relatively slow in the process of returning to its original state. And some rubbers are used outside by people, and the rubber will be irradiated by ultraviolet rays outside. Since there are a large number of chemical bonds in the rubber molecules that give the rubber strong elasticity, but under the irradiation of ultraviolet rays, the energy of some chemical bonds in the rubber is excited, causing them to break, which will cause the toughness of the rubber to decrease, and in severe cases, it will also lead to a decrease in its toughness. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, the present invention provides a rubber resistant to oil and high temperature, which solves the problems that when the existing rubber is subjected to large extrusion at high temperature, due to the damage caused by high temperature to the rubber, the rubber is relatively slow in the process of returning to its original state, and some rubbers are used outside by people, and the rubber will be irradiated by ultraviolet rays outside. Since there are a large number of chemical bonds in the rubber molecules that give the rubber strong elasticity, but under the irradiation of ultraviolet rays, the energy of some chemical bonds in the rubber is excited, causing them to break, which will cause the toughness of the rubber to decrease, and in severe cases, it will also lead to a decrease in its toughness.

[0008] (2) Technical Solution

[0009] The object of the present invention is to provide an oil-resistant and high-temperature-resistant rubber to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above object, the present invention provides the following technical solution:

[0011] An oil-resistant and high-temperature-resistant rubber contains the following components by weight ratio: including 26-30 parts of natural rubber, 18-22 parts of polyethylene oxide, 5-9 parts of glass fiber, 1-5 parts of titanium diboride, 1-5 parts of trans-1,4-polyisoprene rubber, 2-6 parts of hydrophilic colloid, 6-10 parts of compatibilizer, 5-9 parts of additives, 2-6 parts of aramid fiber, 3-7 parts of polyurethane, 10-14 parts of nano-zinc oxide, 2-7 parts of lubricant, and 16-20 parts of styrene-butadiene.

[0012] Preferably, it contains the following components by weight ratio:

[0013] 26 parts of natural rubber, 18 parts of polyethylene oxide, 5 parts of glass fiber, 1 part of titanium diboride, 1 part of trans-1,4-polyisoprene rubber, 2 parts of hydrophilic colloid, 6 parts of compatibilizer, 6 parts of additives, 2 parts of aramid fiber, 3 parts of polyurethane, 10 parts of nano-zinc oxide, 2 parts of lubricant, and 16 parts of styrene-butadiene.

[0014] Preferably, it contains the following components by weight ratio:

[0015] 27 parts of natural rubber, 19 parts of polyethylene oxide, 6 parts of glass fiber, 2 parts of titanium diboride, 2 parts of trans-1,4-polyisoprene rubber, 3 parts of hydrophilic colloid, 7 parts of compatibilizer, 7 parts of additives, 3 parts of aramid fiber, 11 parts of nano-zinc oxide, 3 parts of lubricant, and 17 parts of styrene-butadiene.

[0016] Preferably, it contains the following components by weight ratio:

[0017] 28 parts of natural rubber, 20 parts of polyethylene oxide, 7 parts of glass fiber, 3 parts of titanium diboride, 4 parts of hydrophilic colloid, 8 parts of compatibilizer, 8 parts of additives, 5 parts of polyurethane, 13 parts of nano-zinc oxide, and 5 parts of lubricant.

[0018] Preferably, it contains the following components by weight ratio:

[0019] 29 parts of natural rubber, 21 parts of polyethylene oxide, 8 parts of glass fiber, 4 parts of titanium diboride, 4 parts of trans-1,4-polyisoprene rubber, 5 parts of hydrophilic colloid, 9 parts of compatibilizer, 8 parts of additives, 5 parts of aramid fiber, 6 parts of polyurethane, 6 parts of lubricant, and 19 parts of styrene-butadiene.

[0020] Preferably, it contains the following components by weight ratio:

[0021] It includes 30 parts of natural rubber, 22 parts of polyethylene oxide, 9 parts of glass fiber, 5 parts of trans-1,4-polyisoprene rubber, 6 parts of hydrocolloid, 10 parts of compatibilizer, 9 parts of additives, 6 parts of aramid fiber, 7 parts of polyurethane, 14 parts of nano-zinc oxide, 7 parts of lubricant, and 20 parts of styrene-butadiene.

[0022] Preferably, the material used for the phase solvent is maleic anhydride grafted.

[0023] Preferably, the material used for the additives is carbon black.

[0024] Preferably, the material used for the lubricant is polyphenylene sulfide.

[0025] Compared with the prior art, it has the following beneficial effects:

[0026] 1. In the present invention, by adding trans-1,4-polyisoprene rubber and styrene-butadiene, the rubber can be quickly restored to its original state when being extruded at high temperature. By adding nano-zinc chloride, the rubber can automatically shield ultraviolet rays from the outside world, so that it will not be damaged by ultraviolet irradiation.

[0027] 2. By adding polyurethane, the oil resistance of the rubber is effectively improved. When the rubber contacts with oil, it can prevent the oil from penetrating into the rubber and avoid swelling or increasing in volume. By adding aramid fiber, the strength and modulus of the rubber hardly change at high temperature, which can effectively improve the high-temperature resistance of the rubber. Specific Embodiments

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides a technical solution:

[0030] Example 1:

[0031] The embodiment of the present invention provides an oil-resistant and high-temperature-resistant rubber, which contains the following components by weight ratio: including 26-30 parts of natural rubber, 18-22 parts of polyethylene oxide, 5-9 parts of glass fiber, 1-5 parts of titanium diboride, 1-5 parts of trans-1,4-polyisoprene rubber, 2-6 parts of hydrocolloid, 6-10 parts of compatibilizer, 5-9 parts of additives, 2-6 parts of aramid fiber, 3-7 parts of polyurethane, 10-14 parts of nano-zinc oxide, 2-7 parts of lubricant, and 16-20 parts of styrene-butadiene;

[0032] Containing the following components by weight ratio:

[0033] 26 parts of natural rubber, 18 parts of polyethylene oxide, 5 parts of glass fiber, 1 part of titanium diboride, 1 part of trans-1,4-polyisoprene rubber, 2 parts of hydrocolloid, 6 parts of compatibilizer, 6 parts of additive, 2 parts of aramid fiber, 3 parts of polyurethane, 10 parts of nano-zinc oxide, 2 parts of lubricant, 16 parts of styrene-butadiene;

[0034] The material used for the compatibilizer is maleic anhydride grafted;

[0035] The material used for the additive is carbon black;

[0036] The material used for the lubricant is polyphenylene sulfide.

[0037] In this embodiment, by adding trans-1,4-polyisoprene rubber and styrene-butadiene, the rubber can be extruded at high temperature or quickly return to its original state. By adding nano-zinc chloride, the rubber can automatically shield ultraviolet rays from the outside world, so that it will not be damaged by ultraviolet irradiation. By adding polyurethane, the oil resistance of the rubber can be effectively improved. When the rubber is in contact with oil, it can prevent the oil from penetrating into the rubber and avoid swelling or increasing in volume. By adding aramid fiber, the strength and modulus at high temperature hardly change, which can effectively improve the high-temperature resistance of the rubber. By adding titanium diboride, a dense oxide film will form on the surface of the rubber, preventing oxygen from further penetrating into its interior. And titanium diboride has excellent chemical inertness and is extremely difficult to react with other substances, so that the rubber has extremely strong corrosion resistance.

[0038] Example Two:

[0039] On the basis of Example One, the composition components of the rubber are redistributed, containing the following components by weight ratio:

[0040] 27 parts of natural rubber, 19 parts of polyethylene oxide, 6 parts of glass fiber, 2 parts of titanium diboride, 2 parts of trans-1,4-polyisoprene rubber, 3 parts of hydrocolloid, 7 parts of compatibilizer, 7 parts of additive, 3 parts of aramid fiber, 11 parts of nano-zinc oxide, 3 parts of lubricant, 17 parts of styrene-butadiene;

[0041] The material used for the compatibilizer is maleic anhydride grafted;

[0042] The material used for the additive is carbon black;

[0043] The material used for the lubricant is polyphenylene sulfide.

[0044] In this embodiment, by adding trans-1,4-polyisoprene rubber and styrene-butadiene, the rubber can be extruded at high temperatures or quickly return to its original state. By adding nano-zinc chloride, the rubber can automatically shield external ultraviolet rays in the external environment, so that it will not be damaged by ultraviolet irradiation. By adding aramid fibers, the strength and modulus of the rubber hardly change at high temperatures, effectively improving the high-temperature resistance of the rubber. By adding titanium diboride, a dense oxide film will form on the surface of the rubber, preventing oxygen from further penetrating into its interior. Moreover, titanium diboride has excellent chemical inertness, that is, it is not easy to react with other substances, so that the rubber has extremely strong corrosion resistance.

[0045] Example Three:

[0046] On the basis of Example One, the composition of the rubber is redistributed and contains the following components by weight ratio:

[0047] 28 parts of natural rubber, 20 parts of polyethylene oxide, 7 parts of glass fiber, 3 parts of titanium diboride, 4 parts of hydrophilic colloid, 8 parts of compatibilizer, 8 parts of additive, 5 parts of polyurethane, 13 parts of nano-zinc oxide, 5 parts of lubricant;

[0048] The material used for the compatibilizer is maleic anhydride grafted;

[0049] The material used for the additive is carbon black;

[0050] The material used for the lubricant is polyphenylene sulfide.

[0051] In this embodiment, by adding trans-1,4-polyisoprene rubber and styrene-butadiene, the rubber can be extruded at high temperatures or quickly return to its original state. By adding nano-zinc chloride, the rubber can automatically shield external ultraviolet rays in the external environment, so that it will not be damaged by ultraviolet irradiation. By adding polyurethane, the oil resistance of the rubber is effectively improved. When the rubber is in contact with oil, it can prevent the oil from penetrating into the rubber and avoid swelling or increasing in volume. By adding titanium diboride, a dense oxide film will form on the surface of the rubber, preventing oxygen from further penetrating into its interior. Moreover, titanium diboride has excellent chemical inertness, that is, it is not easy to react with other substances, so that the rubber has extremely strong corrosion resistance.

[0052] Example Four:

[0053] On the basis of Example One, the composition of the rubber is redistributed and contains the following components by weight ratio:

[0054] 29 parts of natural rubber, 21 parts of polyethylene oxide, 8 parts of glass fiber, 4 parts of titanium diboride, 4 parts of trans-1,4-polyisoprene rubber, 5 parts of hydrocolloid, 9 parts of compatibilizer, 8 parts of additives, 5 parts of aramid fiber, 6 parts of polyurethane, 6 parts of lubricant, 19 parts of styrene-butadiene;

[0055] The material used for the compatibilizer is maleic anhydride grafted;

[0056] The material used for the additives is carbon black;

[0057] The material used for the lubricant is polyphenylene sulfide.

[0058] In this embodiment, by adding nano zinc chloride, the rubber can automatically shield ultraviolet rays from the outside world, so that it will not be damaged by ultraviolet irradiation. By adding polyurethane, the oil resistance of the rubber is effectively improved. When the rubber contacts with oil, it can prevent the oil from penetrating into the rubber and avoid expansion or volume increase. By adding aramid fiber, the strength and modulus at high temperature hardly change, which can effectively improve the high temperature resistance of the rubber. By adding titanium diboride, a dense oxide film will form on the surface of the rubber to prevent oxygen from further penetrating into its interior. And titanium diboride has excellent chemical inertness, that is, it is not easy to react with other substances, so that the rubber has extremely strong corrosion resistance.

[0059] Example Five:

[0060] On the basis of Example One, the composition of the rubber is redistributed, containing the following components by weight ratio:

[0061] Including 30 parts of natural rubber, 22 parts of polyethylene oxide, 9 parts of glass fiber, 5 parts of trans-1,4-polyisoprene rubber, 6 parts of hydrocolloid, 10 parts of compatibilizer, 9 parts of additives, 6 parts of aramid fiber, 7 parts of polyurethane, 14 parts of nano zinc oxide, 7 parts of lubricant, 20 parts of styrene-butadiene.

[0062] The material used for the compatibilizer is maleic anhydride grafted;

[0063] The material used for the additives is carbon black;

[0064] The material used for the lubricant is polyphenylene sulfide.

[0065] In this embodiment, the added nano zinc chloride effectively blocks the damage of the rubber caused by external ultraviolet irradiation. The added trans-1,4-polyisoprene rubber and styrene-butadiene enable the rubber to quickly return to its original state when being extruded at high temperature. The added polyurethane improves the oil resistance of the rubber, preventing the oil from penetrating into the rubber and causing it to expand or increase in volume when in contact with the oil. The strength and modulus of the added aramid fiber hardly change at high temperature, effectively improving the high-temperature resistance of the rubber.

[0066] The comparison data table of the embodiments is as follows:

[0067] Oil resistance High temperature resistance Rebound resilience resistance UV resistance Corrosion resistance Example 1 A A A A A Example 2 B A A A A Example 3 A A B A A Example 4 A A A B A Example 5 A A A A B

[0068] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-resistant and high-temperature-resistant rubber, characterized in that: Containing the following components by weight ratio: including 26-30 parts of natural rubber, 18-22 parts of polyethylene oxide, 5-9 parts of glass fiber, 1-5 parts of titanium diboride, 1-5 parts of trans-1,4-polyisoprene rubber, 2-6 parts of hydrocolloid, 6-10 parts of compatibilizer, 5-9 parts of additive, 2-6 parts of aramid fiber, 3-7 parts of polyurethane, 10-14 parts of nano zinc oxide, 2-7 parts of lubricant, 16-20 parts of styrene-butadiene.

2. A kind of oil-resistant and high-temperature-resistant rubber according to claim 1, characterized in that: Containing the following components by weight ratio: 26 parts of natural rubber, 18 parts of polyethylene oxide, 5 parts of glass fiber, 1 part of titanium diboride, 1 part of trans-1,4-polyisoprene rubber, 2 parts of hydrocolloid, 6 parts of compatibilizer, 6 parts of additive, 2 parts of aramid fiber, 3 parts of polyurethane, 10 parts of nano zinc oxide, 2 parts of lubricant, 16 parts of styrene-butadiene.

3. A kind of oil-resistant and high-temperature-resistant rubber according to claim 1, characterized in that: Containing the following components by weight ratio: 27 parts of natural rubber, 19 parts of polyethylene oxide, 6 parts of glass fiber, 2 parts of titanium diboride, 2 parts of trans-1,4-polyisoprene rubber, 3 parts of hydrocolloid, 7 parts of compatibilizer, 7 parts of additive, 3 parts of aramid fiber, 11 parts of nano zinc oxide, 3 parts of lubricant, 17 parts of styrene-butadiene.

4. A kind of oil-resistant and high-temperature-resistant rubber according to claim 1, characterized in that: Containing the following components by weight ratio: 28 parts of natural rubber, 20 parts of polyethylene oxide, 7 parts of glass fiber, 3 parts of titanium diboride, 4 parts of hydrocolloid, 8 parts of compatibilizer, 8 parts of additive, 5 parts of polyurethane, 13 parts of nano zinc oxide, 5 parts of lubricant.

5. A rubber resistant to oil and high temperature according to claim 1, characterized in that: Containing the following components by weight ratio: 29 parts of natural rubber, 21 parts of polyethylene oxide, 8 parts of glass fiber, 4 parts of titanium diboride, 4 parts of trans-1,4-polyisoprene rubber, 5 parts of hydrocolloid, 9 parts of compatibilizer, 8 parts of additive, 5 parts of aramid fiber, 6 parts of polyurethane, 6 parts of lubricant, 19 parts of styrene-butadiene.

6. A kind of oil-resistant and high-temperature-resistant rubber according to claim 1, characterized in that: Containing the following components by weight ratio: Including 30 parts of natural rubber, 22 parts of polyethylene oxide, 9 parts of glass fiber, 5 parts of trans-1,4-polyisoprene rubber, 6 parts of hydrocolloid, 10 parts of compatibilizer, 9 parts of additive, 6 parts of aramid fiber, 7 parts of polyurethane, 14 parts of nano zinc oxide, 7 parts of lubricant, 20 parts of styrene-butadiene.

7. A rubber resistant to oil and high temperature according to claim 1, characterized in that: The material used for the phase solvent is maleic anhydride grafted.

8. A rubber resistant to oil and high temperature according to claim 1, characterized in that: The material used for the additive is carbon black.

9. A kind of oil-resistant and high-temperature-resistant rubber according to claim 1, characterized in that: The material used for the lubricant is polyphenylene sulfide.