A ground source heat pump pipe
A ground source heat pump and pipe technology, applied in the polymer field, can solve the problems of poor thermal conductivity and poor thermal conductivity, and achieve the effects of improving thermal conductivity, high thermal conductivity and prolonging service life.
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Embodiment 1
[0038] A ground source heat pump pipe, which is made of the following raw materials in parts by weight: 100 parts of HDPE, 3 parts of expanded graphite, 0.1 part of silicon carbide whiskers, 10 parts of silicon carbide particles, 0.2 parts of silane coupling agent KH550, anti- 1 part of oxygen agent 1010, 3 parts of color masterbatch;
[0039] The molecular weight of the HDPE is 200,000. The particle size of the expanded graphite is 100 mesh. The particle size of the silicon carbide whiskers is 0.1 μm; the aspect ratio of the silicon carbide whiskers is greater than or equal to 20. The particle size of the silicon carbide particles is 30nm.
[0040] The melt index of the color masterbatch is 4.6g / 10min.
[0041] The preparation method of the ground source heat pump pipe comprises the following steps:
[0042] (1) Add the HDPE, expanded graphite, silicon carbide whiskers, silicon carbide particles, coupling agent, antioxidant, and color masterbatch into a plastic high-speed...
Embodiment 2
[0047] A ground source heat pump pipe, which is made of the following raw materials in parts by weight: 100 parts of HDPE, 5 parts of expanded graphite, 0.6 parts of silicon carbide whiskers, 20 parts of silicon carbide particles, 0.5 parts of silane coupling agent KH570, anti- 2 parts of oxygen agent 1010, 5 parts of masterbatch;
[0048] The molecular weight of the HDPE is 200,000. The particle size of the expanded graphite is 80 mesh. The particle size of the silicon carbide whiskers is 0.1 μm; the aspect ratio of the silicon carbide whiskers is greater than or equal to 20. The particle size of the silicon carbide particles is 30nm.
[0049] The melt index of the color masterbatch is 4.2g / 10min.
[0050] The preparation method of the ground source heat pump pipe comprises the following steps:
[0051] (1) Add the HDPE, expanded graphite, silicon carbide whiskers, silicon carbide particles, coupling agent, antioxidant, and color masterbatch into a plastic high-speed mixe...
Embodiment 3
[0056] A ground source heat pump pipe, the pipe is made of raw materials including the following parts by weight: 100 parts of HDPE, 6 parts of expanded graphite, 1.2 parts of silicon carbide whiskers, 30 parts of silicon carbide particles, 1.2 parts of silane coupling agent KH570, anti- 3 parts of oxygen agent 1010, 5 parts of color masterbatch;
[0057] The molecular weight of the HDPE is 200,000. The particle size of the expanded graphite is 200 mesh. The particle size of the silicon carbide whiskers is 0.1 μm; the aspect ratio of the silicon carbide whiskers is greater than or equal to 20. The particle size of the silicon carbide particles is 40nm.
[0058] The melt index of the color masterbatch is 4.6g / 10min.
[0059] The preparation method of the ground source heat pump pipe comprises the following steps:
[0060] (1) Add the HDPE, expanded graphite, silicon carbide whiskers, silicon carbide particles, coupling agent, antioxidant, and color masterbatch into a plasti...
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