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Special material for polychloroethylene insulating electrical casing pipe

A technology of polyvinyl chloride and electrical bushings, applied in the direction of insulators, etc., can solve the problems of large current changes in the host, unstable product quality, and difficulty in feeding hoppers, etc., to reduce raw material costs, improve system fluidity and processing performance, and be good. The effect of physical and mechanical properties

Inactive Publication Date: 2008-05-14
TIANJIN DEHAO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the extrusion molding process of rigid PVC resin, there are problems such as difficulty in feeding the hopper, easy bridging, poor processing fluidity, and large changes in the current of the host, resulting in unstable product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Special powder formula for PVC insulated electrical bushing:

[0048] Polyvinyl chloride (PVC) 100kg

[0049] Stabilizer (commercially available dust-free composite lead stabilizer) 5kg

[0050] Processing modifier (commercially available ACR401, polyacrylate) 2kg

[0051] Impact modifier CPE (Zibo Jweize Chemical Co., Ltd.) 10kg

[0052] Plasticizer (DOP, polydioctyl phthalate) 2kg

[0053] Stearic acid (HSt) 0.8kg

[0054] Calcium stearate (CaSt) 0.8kg

[0055] Polyethylene wax (WAX) 1kg

[0056] Titanium dioxide (TiO 2 ) 2kg

[0057] Whitening agent (commercially available) 0.04kg

[0058] 6000 mesh inorganic material powder (heavy calcium carbonate) 50kg

[0059] Put the 6000-mesh inorganic material powder into the high-speed mixer and mix it at high speed. When the temperature reaches 80°C, dehumidification starts. After the temperature reaches 110°C, add stearic acid and mix for 10 minutes, then add impact modifier CPE and mix for 10 minutes , put the mi...

Embodiment 2

[0065] Formula of special pellets for PVC insulating electrical bushing:

[0066] Polyvinyl chloride (PVC) 100kg

[0067] Stabilizer (commercially available dust-free composite lead stabilizer) 5kg

[0068] Processing modifier (commercially available ACR401, polyacrylate) 2kg

[0069] Impact modifier CPE (Zibo Jweize Chemical Co., Ltd.) 10kg

[0070]Plasticizer (DOP, polydioctyl phthalate) 2kg

[0071] Stearic acid (HSt) 0.8kg

[0072] Calcium stearate (CaSt) 0.8kg

[0073] Polyethylene wax (WAX) 1kg

[0074] Titanium dioxide (TiO 2 ) 2kg

[0075] Whitening agent (commercially available) 0.04kg

[0076] 6000 mesh inorganic material powder (heavy calcium carbonate) 50kg

[0077] Put the 6000-mesh inorganic material powder into the high-speed mixer and mix it at high speed. When the temperature reaches 90°C, dehumidification starts. After the temperature reaches 160°C, add stearic acid and mix for 5 minutes, then add impact modifier CPE and mix for 5 minutes , put the ...

Embodiment 3

[0083] Formula of special pellets for PVC insulating electrical bushing:

[0084] Polyvinyl chloride (PVC) 100kg

[0085] Stabilizer (commercially available dust-free composite lead stabilizer) 3kg

[0086] Processing modifier (commercially available ACR401, polyacrylate) 1kg

[0087] Impact modifier CPE (Zibo Jweize Chemical Co., Ltd.) 1.5kg

[0088] Plasticizer (DOP, polydioctyl phthalate) 1kg

[0089] Stearic acid (HSt) 0.5kg

[0090] Calcium stearate (CaSt) 0.5kg

[0091] Polyethylene wax (WAX) 0.6kg

[0092] Titanium dioxide (TiO 2 ) 1.5kg

[0093] Whitening agent (commercially available) 0.02kg

[0094] 6000 mesh inorganic material powder (heavy calcium carbonate) 5kg

[0095] The 6000-mesh inorganic material powder in this formula uses heavy calcium carbonate, and can also use light calcium carbonate, kaolin, talcum powder, silicon dioxide, magnesium hydroxide, aluminum hydroxide, wollastonite or their mixtures. The impact modifier in this formulation uses CPE...

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Abstract

The invention discloses a special material of polyvinyl chloride for electric isolated sleeve, comprising polyvinyl chloride, stabilizing agent, modifying agent for processing, shock resistance modifying agent, plasticizer, stearic acid, calcium stearate, polyethylene (PE) wax, pigment and 6000 mesh inorganic materials powder. The preparation method is as below: combine the measured 6000 mesh inorganic materials powder and the stearic acid first and then add shock resistance modifying agent to modify the inorganic materials powder. The combined material is granulated by an extruder for reservation. Then mix the measured material evenly by the high mixing machine to form the special powder material for polyvinyl chloride insulated sleeve or granulate the special powder material for polyvinyl chloride insulated sleeve by the extruder to form the special granule for polyvinyl chloride insulated sleeve which is later molded by the plastic extruding machine to form insulated electric sleeve with various specifications. The invention has the advantages of sound dispersion and compatibility, better product quality and lower cost.

Description

technical field [0001] The invention relates to materials for plastic insulating electrical bushings, in particular to a special material for polyvinyl chloride insulating electrical bushings composed of 6000-mesh inorganic material powder mixed with polyvinyl chloride (PVC) resin. Background technique [0002] Polyvinyl chloride (PVC), stabilizers, processing modifiers, plasticizers, stearic acid, calcium stearate, polyethylene wax, pigments and inorganic material powders are properly mixed to produce various products for different purposes. PVC plastic products, such as rigid or semi-rigid PVC insulated electrical bushings. [0003] At present, my country's building materials industry is developing rapidly, and the protection of electrical lines through pipes has become a mandatory standard for the construction industry and power transmission industries. In addition to the requirements for power lines and lighting lines, national regulations and related standards also req...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/09H01B17/58C08L23/28C08L33/12C08K3/36C08K3/00C08K3/26
Inventor 王获揣成智陈昊
Owner TIANJIN DEHAO NEW MATERIALS
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