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Method for preparing environment-friendly PVC (Polyvinyl Chloride) wire and cable material

An environmentally friendly technology for wire and cable materials, applied in the field of preparation of environmentally friendly PVC wire and cable materials, can solve the problems of high formulation and production costs, increase the plasticizing time, ensure the plasticizing time, improve the pressure capacity and shear The effect of cutting ability

Active Publication Date: 2014-04-09
江苏旭科新材料有限公司
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  • Application Information

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Problems solved by technology

[0004] Just like many manufacturers in our country, in the prior art of PVC wire and cable materials, p-benzene materials are used as plasticizers, which generally account for 25% of the total formula, which cannot solve the problem of environmental protection, and the formula and production costs are also relatively high.

Method used

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  • Method for preparing environment-friendly PVC (Polyvinyl Chloride) wire and cable material

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Embodiment Construction

[0019] 1. Choose environmentally friendly materials, including stabilizers, plasticizers, additives, and flame retardants;

[0020] 1. Stabilizer:

[0021] Stabilizers are the main source of heavy metals in environmentally friendly PVC wire and cable materials. At present, the domestic tradition uses lead-based stabilizers, which contain toxic heavy metals such as lead and zinc; the present invention adopts calcium and zinc monomer stabilizers. The stabilizer is added from 3% of the original total amount to 1%. It has ensured that the content of heavy metals such as lead, cadmium, mercury, arsenic, and hexavalent chromium in the product meets environmental protection requirements.

[0022] 2. Plasticizer:

[0023] The plasticizers are all made of biomass-derived polymer plasticizers, mainly using epoxy soybean oil and vegetable oil with an epoxy value between 6.0 and 6.4 (when the low-temperature impact embrittlement temperature is below -25°C Vegetable oil is used), w...

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Abstract

The invention discloses a method for preparing an environment-friendly PVC (Polyvinyl Chloride) wire and cable material. The main formula of the environment-friendly PVC wire and cable material comprises the following components according to percentage by weight: 45-50% of PVC resin, 20-25% of epoxidized soybean oil, 0.5-1% of stabilizer and 20-25% of calcium carbonate. The processing steps are as follows: weighing according to the formula, stirring, extruding, cooling and packaging. Products produced by the method disclosed by the invention meet the GB / T8815-2008 standard; as shown in SGS detection, the products meet the environmental protection requirement; the electrical properties of the products are excellent, the volume resistivity is greater than 8.5*10<10> omega m, and the dielectric strength is 28 MV / M; the equipment is improved and the process and the formula are innovated to greatly reduce the production cost and meet the requirements of users.

Description

technical field [0001] The invention relates to electric wires and cables, in particular to a preparation method of an environment-friendly PVC electric wire and cable material. Background technique [0002] PVC wire and cable insulation and sheath materials are relatively cheap, with excellent mechanical properties and easy processing, making it the most widely used material in the wire and cable industry for a long time. Nowadays, with the rapid development of my country's economy, the national power grid renewal and infrastructure construction have higher and higher quality requirements for PVC wire and cable products, especially environmental protection requirements. The country pays more and more attention to how to protect the environment. Many countries have Various environmental protection policies have been formulated one after another, so people are more inclined to use environmentally friendly PVC wire and cable materials. At present, foreign countries have specif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/1515C08K3/26H01B3/44B29C47/60
Inventor 李根贵沈劲松
Owner 江苏旭科新材料有限公司
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