Method for preparing cable trench cover plate by adopting retired insulator rubber and core rod powder
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A cable trench cover and insulator technology, applied in the field of material processing, to achieve the effect of energy saving and excellent performance parameters
Active Publication Date: 2018-08-21
JILIN PROVINCE ELECTRIC POWER RES INST OF JILIN ELECTRIC POWER CO LTD +2
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[0007] In view of the above-mentioned problems in the prior art, the present invention provides a method for preparing a cable trench cover by using decommissioned insulator rubber and mandrel powder, so as to solve the problem of recycling the decommissioned insulator mandrel existing in the service period of the composite resin cable trench cover. reuse problem
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Embodiment 1
[0053] A cable trench cover plate prepared by doping decommissioned insulator rubber and mandrel powder, the cable trench cover plate is composed of an upper layer and a lower layer, wherein:
[0054] The upper layer is a rubber composite layer 11, and its composition includes silicone rubber, modified decommissioned insulator rubber powder, rubber filler, hydrogen-containing silicone oil, platinum catalyst, vulcanizing agent, glass fiber, curing agent, low shrinkage additive;
[0055] The lower layer is a resin composite layer 12, and its composition includes modified decommissioned polymer insulator mandrel powder, epoxy resin, rubber filler, hydrogen-containing silicone oil, platinum catalyst, vulcanizing agent, glass fiber, curing agent, low shrinkage additive;
[0056] The rubber composite layer 11 on the upper layer and the resin composite layer 12 on the lower layer are tightly combined to form an integral cable trench cover 1 .
[0057] Further, the mass ratio relation...
Embodiment 2
[0090] In order to further optimize the technical effect, the present invention has also made further improvements. Under the situation that other technical features are the same as those of Embodiment 1, Embodiment 2 improves above-mentioned Embodiment 1 from the following aspects:
[0091] At room temperature, use an open mill to mix raw silicone rubber, modified decommissioned insulator rubber powder, silicon dioxide, hydrogen-containing silicone oil, and platinum catalyst in a mass ratio of 100:15:30:5:0.02, and thinly pass 15 times. Then add 6.2 parts of double 2-penta vulcanizing agent, continue to mix until the mixed rubber is uniformly obtained; slice the mixed rubber and place it in a mold of a certain size for vulcanization. The insulator rubber powder is doped with the silicone rubber composite material, that is, the rubber composite layer 11 .
[0092] At room temperature, a mixture of epoxy resin, m-xylylenediamine, polyvinyl chloride and modified decommissioned p...
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Abstract
The invention discloses a cable trench cover plate prepared by doping retired polymer insulator rubber and core rod powder and a preparation method thereof. The retired insulator rubber and core rod are pulverized, and the pulverized retired insulator rubber and core rod serve as fillers and respectively added to silicone rubber and glass fiber reinforced epoxy resin and prepare a composite resincapable trench cover plate through high-temperature moulding and solidification. The method realizes recycling and reusing of the retired insulator material in the field of cable trench cover plate preparation for the first time. The test shows that the cable trench cover plate prepared according to the preparation method is excellent in various performance parameters and that mechanical propertyand thermal property test data results of the cable trench cover plate are higher than that of an ordinary concrete cover plate and steel fiber reinforced cover plate. The method achieves a technicaleffect of recycling a lot of retired insulator materials under the condition of not influencing the performance of the composite resin cover plate in all aspects for the first time, and has importantsignificance and application values on the aspects of waste macromolecular material recycling, energy conversation and sustainable development of materials.
Description
technical field [0001] The invention belongs to the field of material processing, in particular to a method for preparing a cable trench cover plate by using retired insulator rubber and mandrel powder. Background technique [0002] It should be noted that this section provides only background information related to the present disclosure and is not necessarily prior art. [0003] With the rapid advancement of urbanization in my country, the demand for cable trench covers in infrastructure construction such as municipal construction is increasing, and they are widely used in underground pipeline laying projects for new wires, cables, optical cables and other lines. However, for a long time, the cable trench cover material has been made of cast iron and cement, which has technical problems such as weak bearing capacity, poor safety, and short service life. [0004] Composite resin cable trench cover is a new type of cable trench cover with relatively promising development pr...
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