Formula of rubber protection pad for cable and optical cable fixture

Abstract

The invention relates to the technical field of rubber protection pads for cable and optical cable fixtures, and discloses a formula of a rubber protection pad for cable and optical cable fixtures, which comprises the following raw materials in percentage by weight: 10% of rubber, 50% of plastic, 24% of calcium carbonate, 5% of heat stabilizer, 3% of lubricant, 2% of antioxidant, 2% of colorant and 4% of flexibilizer. The rubber is one of nitrile rubber, styrene butadiene rubber and silicone rubber, the plastic is one of polyvinyl chloride, polystyrene and high-density polyethylene, the heat stabilizer is one or more of a lead salt composite stabilizer, an OBS organic base stabilizer and a rare earth heat stabilizer, and the lubricant is glycerin. According to the formula of the rubber protection pad for the cable and optical cable clamp, good tensile strength, solar radiation resistance and alternating damp heat resistance are obtained, nitrile rubber is matched with polyvinyl chloride, calcium carbonate, a heat stabilizer and the like, a new rubber and plastic product is synthesized through re-melting, good material balance is obtained, and the product has good physical performance.

Description

Technical Field

[0001] The invention relates to the technical field of rubber protective pads for cable and optical cable clamps, in particular to a formula of rubber protective pads for cable and optical cable clamps. Background Art

[0002] Cables and optical cables are affected by external wind during use. Cable and optical cable clamps are provided to clamp and fix the shaking cables and optical cables to prevent the cables and optical cables from breaking or detaching due to shaking. The existing cable and optical cable clamp structure is provided with a rubber protective pad for the cable and optical cable clamp at the contact position with the surface of the cable and optical cable. Due to the diverse use environments of cables and optical cables, they are exposed to sunlight in outdoor environments and are subject to heat and humidity deformation in rainy weather. At the same time, when the rubber pads for cable and optical cable clamps are made of rubber materials, the cost is high and the general rubber is easy to wear; the use of low-priced plastic as the matrix cannot meet the performance requirements.

[0003] Therefore, the present invention provides a kind of cable and optical cable clamp rubber pad formula to solve the above-mentioned problem. Summary of the invention

[0004] Technical issues solved In view of the deficiencies in the prior art, the present invention provides a formula for rubber protective pads for cable and optical cable clamps, which has the advantages of using very little rubber, combined with a plastic product PCV, and various other additives to obtain the best material balance and obtain a material with rubber-like properties, thereby solving the problem of high cost of using rubber materials and the inability to achieve performance requirements using plastics.

[0005] Technical Solution In order to achieve the above-mentioned purpose of using a small amount of rubber, combined with plastic PCV and other various additives to obtain the best material balance and obtain a material with rubber-like properties, the present invention provides the following technical solutions: A rubber protective pad formula for cable and optical cable clamps, comprising the following raw materials in proportion by weight: Rubber 7-17%, plastic 46-51%, calcium carbonate 23-27%, heat stabilizer 3-5%, lubricant 1-3%, antioxidant 2-4%, colorant 2%, toughening agent 3-6%.

[0006] Preferably, the raw materials in the formula are composed by weight percentage: 10% rubber, 50% plastic, 24% calcium carbonate, 5% heat stabilizer, 3% lubricant, 2% antioxidant, 2% colorant, and 4% toughening agent.

[0007] Preferably, the raw materials in the formula are composed of 15% rubber, 48% plastic, 27% calcium carbonate, 4% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant, and 5% toughening agent by weight percentage.

[0008] Preferably, the raw materials in the formula are composed by weight percentage: 7% rubber, 51% plastic, 25% calcium carbonate, 5% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant, and 6% toughening agent.

[0009] Preferably, the rubber is one of nitrile butadiene rubber, styrene butadiene rubber and silicone rubber, and the plastic is one of polyvinyl chloride, polystyrene and high-density polyethylene.

[0010] Preferably, the heat stabilizer is one or more of a lead salt composite stabilizer, an OBS organic-based stabilizer and a rare earth heat stabilizer, and the lubricant is one or more of glycerin, graphite, silicone oil and liquid paraffin.

[0011] Preferably, the antioxidant is one or more of polyarylether antioxidants, phenolic antioxidants, ketone antioxidants, and hydroxyterpene antioxidants.

[0012] Preferably, the toughening agent is one or more of 304 polyester, polyurethane resin and acetal resin.

[0013] Beneficial Effects Compared with the prior art, the present invention provides a rubber protective pad formula for cable and optical cable clamps, which has the following beneficial effects: 1. The rubber protective pad formula for the cable and optical cable clamps has good tensile strength, solar radiation resistance, and alternating heat and humidity resistance.

[0014] 2. The rubber pad formula for the cable and optical cable clamps is obtained by remelting nitrile rubber with polyvinyl chloride, calcium carbonate, heat stabilizer, etc. to synthesize a new rubber-plastic product, thereby achieving a better material balance and making the product have good physical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the solar radiation resistance test of the rubber protective pad of the present invention; Figure 2 This is a schematic diagram of the alternating damp heat test of the rubber protective pad of the present invention; Figure 3 It is a schematic diagram of the tensile strength test of the rubber protective pad of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: A rubber protective pad formula for cable and optical cable fixtures, wherein the raw materials in the formula are respectively composed of 10% rubber, 50% plastic, 24% calcium carbonate, 5% heat stabilizer, 3% lubricant, 2% antioxidant, 2% colorant, and 4% toughening agent by weight percentage; The rubber is nitrile rubber, the plastic is polyvinyl chloride, the heat stabilizer is OBS organic-based stabilizer and rare earth heat stabilizer, and the lubricant is silicone oil and liquid paraffin; The antioxidant is polyarylether antioxidant, and the toughening agent is 304 polyester.

[0019] Embodiment 2: A rubber protective pad formula for cable and optical cable fixtures, wherein the raw materials in the formula are composed of 15% rubber, 48% plastic, 27% calcium carbonate, 4% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant, and 5% toughening agent by weight percentage; The rubber is styrene-butadiene rubber, the plastic is polyvinyl chloride, the heat stabilizer is a lead salt composite stabilizer, and the lubricant is glycerol; The antioxidant is a polyarylether antioxidant, and the toughening agent is a polyurethane resin.

[0020] Embodiment three: A rubber protective pad formula for cable and optical cable fixtures, wherein the raw materials in the formula are respectively composed of 7% rubber, 51% plastic, 25% calcium carbonate, 5% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant, and 6% toughening agent by weight percentage; The rubber is silicone rubber, the plastic is high-density polyethylene, the heat stabilizer is OBS organic-based stabilizer, and the lubricants are graphite, silicone oil and liquid paraffin; The antioxidants are polyarylether antioxidants, phenolic antioxidants and ketone antioxidants, and the toughening agents are polyurethane resins and acetal resins.

[0021] Embodiment 4: A rubber protective pad formula for cable and optical cable fixtures, wherein the raw materials in the formula are composed of 11% rubber, 46% plastic, 25% calcium carbonate, 5% heat stabilizer, 3% lubricant, 3% antioxidant, 2% colorant, and 6% toughening agent by weight percentage; The rubber is silicone rubber, the plastic is high-density polyethylene, the heat stabilizer is OBS organic-based stabilizer, and the lubricants are graphite, silicone oil and liquid paraffin; The antioxidants are polyarylether antioxidants, phenolic antioxidants and ketone antioxidants, and the toughening agents are polyurethane resins and acetal resins.

[0022] Embodiment five: A rubber protective pad formula for cable and optical cable fixtures, wherein the raw materials in the formula are composed of 10% rubber, 51% plastic, 24% calcium carbonate, 5% heat stabilizer, 3% lubricant, 4% antioxidant, 2% colorant, and 6% toughening agent by weight percentage; The rubber is styrene-butadiene rubber, the plastic is polyvinyl chloride, the heat stabilizer is a lead salt composite stabilizer, and the lubricant is glycerol; The antioxidant is a polyarylether antioxidant, and the toughening agent is a polyurethane resin.

[0023] By combining rubber with plastic, calcium carbonate, heat stabilizer, etc. to form a new rubber-plastic product, a better material balance is achieved, so that the product has good physical properties and reduces costs.

[0024] Test items: alternating damp heat Test conditions: (1) Select a set of non-metallic parts of the sling and place them in the alternating damp heat test chamber. The alternating damp heat test chamber should comply with the regulations; (2) The water used to adjust the humidity of the wet heat chamber or to contact the sample should be distilled water or deionized water with a pH value of 6-7; (3) The cycle starts from the specified low temperature, and the temperature should rise and fall at a uniform rate during the cycle; (4) The temperature upper and lower limits are raised and lowered in a 12h+12h cycle for 10 cycles (240 hours); From the beginning of the cycle to 12h30min, the temperature should be kept within the specified range. The alternating time of rising and falling temperatures can be controlled within 3h-6h; (5) The relative humidity should not be less than 90% in the first 15 minutes and the last 15 minutes of temperature change, and should be (93±3)% at other times; Judgment requirements: After the alternating humidity and heat test, there should be no visible powdering, cracks, deformation or other damage on any part of the nylon clamp.

[0025] Test results: Test item: tensile strength Test results: Test item: Solar radiation resistance test Test conditions: Irradiance: 1.12KW / m 2With a relative error of 10%, the test lasts for 10 cycles (i.e. 240 hours) with 8 hours of irradiation and 16 hours of non-irradiation for each cycle. The total radiation amount for each cycle is 8.96 kw·h / m 2 ; The temperature in the test chamber during irradiation is 55℃±2℃.

[0026] Judgment requirements: After the simulated solar radiation test, there should be no visible powdering, cracks, deformation or other damage on any part of the nylon clamp.

[0027] Test results: The beneficial effects of the present invention are as follows: the rubber protective pad formula for the cable and optical cable clamps has good tensile strength, solar radiation resistance, and alternating heat and humidity resistance. By using nitrile rubber and then mixing it with polyvinyl chloride, calcium carbonate, a heat stabilizer, etc., and remelting to synthesize a new rubber-plastic product, a better material balance is obtained, so that the product has good physical properties.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber protective pad formula for cable and optical cable fixtures, characterized in that: The invention comprises the following raw materials in the following weight percentage ratios: 7-17% of rubber, 46-51% of plastic, 23-27% of calcium carbonate, 3-5% of heat stabilizer, 1-3% of lubricant, 2-4% of antioxidant, 2% of colorant and 3-6% of toughening agent.

2. The rubber protective pad formula for cable and optical cable clamps according to claim 1 is characterized in that: The raw materials in the formula are composed of 10% rubber, 50% plastic, 24% calcium carbonate, 5% heat stabilizer, 3% lubricant, 2% antioxidant, 2% colorant and 4% toughening agent in terms of weight percentage.

3. The rubber protective pad formula for cable and optical cable clamps according to claim 1, characterized in that: The raw materials in the formula are composed of 15% rubber, 48% plastic, 27% calcium carbonate, 4% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant and 5% toughening agent by weight percentage.

4. The rubber protective pad formula for cable and optical cable fixtures according to claim 1, characterized in that: The raw materials in the formula are composed of 7% rubber, 51% plastic, 25% calcium carbonate, 5% heat stabilizer, 2% lubricant, 3% antioxidant, 2% colorant and 6% toughening agent in terms of weight percentage.

5. The rubber protective pad formula for cable and optical cable fixtures according to claim 1, characterized in that: The rubber is one of nitrile rubber, styrene butadiene rubber and silicone rubber, and the plastic is one of polyvinyl chloride, polystyrene and high-density polyethylene.

6. The rubber protective pad formula for cable and optical cable fixtures according to claim 1, characterized in that: The heat stabilizer is one or more of a lead salt composite stabilizer, an OBS organic-based stabilizer and a rare earth heat stabilizer, and the lubricant is one or more of glycerin, graphite, silicone oil and liquid paraffin.

7. The rubber protective pad formula for cable and optical cable fixtures according to claim 1 is characterized in that: The antioxidant is one or more of polyarylether antioxidants, phenolic antioxidants, ketone antioxidants, and hydroxyterpene antioxidants.

8. The rubber protective pad formula for cable and optical cable fixtures according to claim 1 is characterized in that: The toughening agent is one or more of 304 polyester, polyurethane resin and acetal resin.

Images