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Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof

A flame-retardant composite and corrosion-resistant technology, applied in the field of engineering materials, can solve problems such as endangering personal safety, equipment outage, toxic and harmful gas leakage, etc., and achieves the effect of excellent comprehensive performance

Inactive Publication Date: 2013-02-06
薛申生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of sulfur content in the production and processing raw materials in the petrochemical industry, the corrosion of equipment is intensified, the corrosion of spare parts is serious, and various toxic and harmful gases leak, which often causes the shutdown of equipment, and seriously endangers personal safety.
At present, the price of some corrosion-resistant and high-temperature resistant metals on the market is very expensive, and some materials cannot even be produced domestically.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention is further described and understood from the following examples, but is not limited to the examples given.

[0021] 1. Materials include by weight: polytetrafluoroethylene: 50%, POB: 3%, graphite: 10%, molybdenum disulfide: 2%, halogen-free flame retardant masterbatch 35%.

[0022] 2. Preparation process:

[0023] (1) Pressing process: After mixing the polytetrafluoroethylene, POB, graphite and molybdenum disulfide of the above formula evenly, under the action of pressing pressure of 37MPa, the holding time is 90 minutes, pressing into a model, adding halogen-free flame retardant master material, stir for 10min;

[0024] (2) Sintering process: Put the model in a sintering furnace, raise the temperature from room temperature to 327°C and keep it for 30 minutes, then raise the temperature to 380°C and keep it for 150 minutes, then start to cool down, from 380°C to 327°C and keep it warm After 30 minutes, continue to cool down to room temperature to...

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PUM

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Abstract

The invention relates to halogen-free flame-resistant composite plastic with corrosion resistance. The halogen-free flame-resistant composite plastic is characterized by being prepared from the following components by weight percentage: 50-65 percent of Teflon, 2-5 percent of POB polyester alloy powder, 5-20 percent of graphite, 2-5 percent of molybdenum disulfide and 30-50 percent of halogen-free flame-resistant master batch. The invention also relates to a preparation method of the halogen-free flame-resistant composite plastic with corrosion resistance. The halogen-free flame-resistant composite plastic has the advantages of easiness in material obtaining, low cost and good combination property and is suitable for conditions of high corrosivity, high temperature, high abrasiveness and the like. The waste disposal of the plastic has certain of environment digestion performance and is harmless to the human body.

Description

1. Technical field [0001] The invention belongs to the technical field of engineering materials and relates to a novel engineering plastic, in particular to a corrosion-resistant halogen-free flame-retardant composite plastic and a preparation method thereof. 2. Background technology [0002] Green engineering is more and more favored by human beings, but some elements and compounds used in the traditional material industry will cause varying degrees of harm to the environment and the biosphere, and the use of green materials is particularly important. At present, polybrominated biphenyls and polybrominated diphenyl ethers are the main flame retardants, which have obvious damage to the thyroid function, reproductive function, nerve function and immune function of the human body. With the increase of sulfur content in raw materials for production and processing in the petrochemical industry, the corrosion of equipment is intensified, the corrosion of spare parts is serious, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L67/00C08K13/06C08K3/04C08K3/30C08K3/22C08K3/02C08J3/22
Inventor 薛申生
Owner 薛申生