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Constant-temperature heating plastic structure and preparation method of constant-temperature heating plastic

A plastic and constant temperature technology, applied in the direction of heating element materials, conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, etc., to achieve the effect of overcoming the phenomenon of freezing blockage

Inactive Publication Date: 2011-05-11
吴成芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After investigation, it was found that many high-rise buildings usually use secondary water supply to provide water sources for residents. Most of the water tanks are placed on the top of the building, usually in the open air or on the top floor. Due to long-term unmanned or neglected management, the insulation of the water tanks is also very difficult. question

Method used

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  • Constant-temperature heating plastic structure and preparation method of constant-temperature heating plastic
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  • Constant-temperature heating plastic structure and preparation method of constant-temperature heating plastic

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preparation example Construction

[0043] A method for preparing constant temperature and heat-generating plastics, the content of the plastic components, by weight percentage:

[0044] Plastic granules or natural rubber granules 32-55%;

[0045] Natural graphite powder 20-49%;

[0046] Special conductive furnace black 10-16%;

[0047] SG-based cellulose 2-4%;

[0048] Zinc oxide 2-4%;

[0049] Anti-aging agent RD 2~4%;

[0050] The processing steps of the constant temperature and heat-generating plastics are:

[0051] 1) Before shaping, put the plastic granules or natural rubber granules, natural graphite powder, special conductive furnace black, SG-based cellulose, zinc oxide and anti-aging agent RD into the drying mixer according to the design ratio and stir for 10-15 Minutes, stir well with various raw materials and set aside;

[0052] 2), before shaping the molding process equipment, place the at least one group of naked wires A1 and B2 at intervals in advance in the cavity of the molding mold to start...

specific Embodiment 1

[0059] The constant temperature heating plastic "plate or tube" of the present invention is composed of a variety of elemental composite materials with the content of the above-mentioned plastic components. The present invention converts electrical energy into thermal energy and uses different voltages and temperatures to calculate the resistivity and heating power per 100 square centimeters; its formula is as follows in Table 1

[0060] Table 1 Voltage 220V~national standard

[0061]

[0062]

[0063] The specific processing technology is the same as the preparation method of the aforementioned constant temperature and heat-generating plastics.

[0064] The formula ratio in the above table is 4.5×10 when the volume resistivity is 45°C under the working condition of voltage 220V 3 Ω.cm. 7.5×10 at 25°C 5 Ω.cm. The ratio between power and temperature is 45℃ / 4W / 100cm 2 ±3.

specific Embodiment 2

[0065] If the above uses the international standard safe voltage of 24 volts, then the formula ratio between them is;

[0066] As in Table 2:

[0067]

[0068] Compared with the above formula, the volume resistivity of the finished plastic is 2.5×10 at 50°C 2 Ω.cm. At 30°C, the volume resistivity is about 4.2×10 4 Ω.cm.

[0069] The constant heating mechanism of the constant-temperature heating plastic (plate or tube) of the present invention is that it is composed of plastic granules or natural rubber granules, natural graphite powder, and special conductive furnace black evenly mixed to form a kind of free electrons with volume resistivity. Conductive mesh.

[0070] It should be noted that due to the stable and continuous contact between the dense network electron particles, they are conductive. Due to the presence of a certain amount of mixed insulating plastic curing powder, they are combined into a semiconductor curing material. When pressed into two naked After t...

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Abstract

The invention discloses a constant-temperature heating plastic structure and a preparation method of constant-temperature heating plastic, and relates to the constant-temperature heating plastic. A naked electric wire A (1) and a naked electric wire B (2) are clamped in a plastic mixed conductive layer (3) at intervals; the naked electric wire A (1), the naked electric wire B (2) and the plastic mixed conductive layer (3) are integrated; and one end of each of the naked electric wire A (1) and the naked electric wire B (2) in the plastic mixed conducting layer (3) is exposed, or two ends are exposed or completely hidden in the plastic mixed conducting layer (3). The constant-temperature heating plastic is prepared from plastic particles or natural rubber particles, natural graphite powder, extra-conductive furnace black, SG-based cellulose, zinc oxide and an anti-aging agent RD according to a design proportion; the constant-temperature heating plastic structure effectively overcomes the defect that a liquid medium pipeline or a liquid medium box body is blocked due to freezing in winter, and is suitable for any position with the anti-freezing requirement or heating requirement; and when the structure is used, the electric wire A and the electric wire B are connected in series or in parallel respectively.

Description

【Technical field】 [0001] The invention relates to a constant temperature and heating plastic, in particular to a process method for mixing plastic and conductor materials. 【Background technique】 [0002] Known, in my country except Guangdong, Hainan and Guangxi, Fujian, south Yunnan, most areas are very cold in winter, especially the northern regions; In order to prevent various pipelines from being damaged by freezing in winter, many manufacturers have introduced pipeline insulation layers, but the effect is often not good. First of all, the insulation layer is used to insulate the pipeline by wrapping a layer of foam material around the pipeline, so that a lot of foam material will be used, which will increase the manufacturing cost virtually; and once the fluid stops running in cold winter, these materials often It doesn't work. Because there is too much water in the pipeline, if it encounters severe winter snow without sunlight for several days, the temperature of the ...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/18H01B1/24H01B13/00
Inventor 吴成芳
Owner 吴成芳