国家/地区 中国（3）
IPC部 B（3）
IPC大类 B29（3） C08（3） B32（2）
IPC小类 B29C（3）
IPC B29C048/09（3）
发明人 LIU W（3）
公开年 2021（3）
申请年 2020（2） 
专利权人 ANHUI GLANT .（3）

Graphene-modified high-efficiency heat conduction ground source heat pump pipe, has outer thermal insulation layer coated on surface of modified layer, and inner carbon fiber layer built into inner cavity of outer insulation layer.

LIU J, LIU W, WU D, LI H

Gas pipe comprises inner layer comprising polyethylene resin and graphene functional masterbatch, core layer comprising polyethylene graft resin, and outer layer comprising block copolymer polypropylene and graphene functional masterbatch.

LIU J, LIU W, WANG J, TIAN X, ZHOU W, TENG X

Preparing organic rigid reinforced and toughened alloy pipe for underground use, involves weighing high-density polyethylene, linear low-density polyethylene, and chlorinated polyethylene.

LIU J, HOU X, LIU W, FU Y, PAN X, MEI L, TENG X