Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below wires and cables through one step
A polyethylene insulation material and polyethylene insulation technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve problems such as large gaps, achieve high insulation resistance, reduce cold flow, enhance chemical resistance and stability. The effect of solvent resistance
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Embodiment 1
[0045] Silane cross-linked polyethylene insulating material for wires and cables of 10kV and below, which is prepared from the following components by weight percentage:
[0046]
[0047] The two-step method for preparing silane cross-linked polyethylene insulating materials for wires and cables of 10kV and below is mainly composed of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products.
[0048] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:
[0049]
[0050] Stir the above materials (total 50 kg) in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then pour them into the hopper of the extruder (extruder temperature: 140~180°C), after twin-screw extrusion After being cooled in a cooling water tank, the pellets are dried after being blown by a fan, and the pellets are ...
Embodiment 2
[0061] Silane cross-linked polyethylene insulating material for wires and cables of 10kV and below, which is prepared from the following components by weight percentage:
[0062]
[0063] The insulating material mentioned above was prepared by the two-step method of Example 1.
Embodiment 3
[0065] Silane cross-linked polyethylene insulating material for wires and cables of 10kV and below, which is prepared from the following components by weight percentage:
[0066]
[0067]
[0068] A method for preparing silane cross-linked polyethylene insulating materials for wires and cables of 10kV and below in one step. It mainly consists of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products.
[0069] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:
[0070]
[0071] Stir the above materials (total 50 kg) in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then pour them into the hopper of the extruder (extruder temperature: 140~180°C), after twin-screw extrusion After being cooled in a cooling water tank, the pellets are dried after being blown by a fan, and t...
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