The directly buried thermal insulation pipeline has the excellent characteristics of high-efficiency heat preservation, waterproof, anti-corrosion, thermal insulation, sound insulation, flame retardant, cold resistance, light capacity, high strength, simple and fast construction, and not afraid of plant root spines. It has become an indispensable material for thermal insulation, waterproof and sealing in industrial sectors such as construction, transportation, petroleum, chemical, electric power, refrigeration, etc. Directly buried thermal insulation pipe is used for various indoor and outdoor pipelines, central heating pipeline, central air conditioning pipeline, chemical industry, and other industrial pipeline insulation and cold insulation engineering, oil pipeline engineering, steam transmission pipeline engineering and other pipeline engineering. The directly buried thermal insulation pipeline can be buried in 0.6-1.2m frozen soil layer, and its heat loss can be reduced by more than 40% compared with ordinary pipeline, and its service life can be increased by more than 3-5 times compared with other thermal insulation and anti-corrosion materials, and the service life can reach 30-50 years.

1.聚氨酯硬泡具有一材多用的功能，同時具備保溫、防水、隔音、吸振等諸多功能。

1. Polyurethane rigid foam has the function of one material and multi-purpose, at the same time, it has many functions such as heat preservation, waterproof, sound insulation, vibration absorption, etc.

2.保溫性能，是目前國內所有建材中導熱系數zui低(≤0.024)、熱阻值zui高的保溫材料，導熱系數僅為EPS發泡聚苯板的一半。

2. Excellent thermal insulation performance, it is the thermal insulation material with low thermal conductivity (≤ 0.024) and high thermal resistance value (Zui) among all domestic building materials. The thermal conductivity is only half of that of EPS foamed polystyrene board.

3.聚氨酯硬泡體連續致密的表皮和近于100%的高強度互聯壁閉孔，具有理想的不透水性。采用噴涂法施工達到防水保溫層連續無接縫，形成無縫屋蓋和整體外墻保溫殼體，防水抗滲性能優異。

3. Polyurethane rigid foam has a continuous and dense skin and close to 100% high-strength interconnected wall, which has ideal impermeability. Spraying method is used to achieve continuous waterproof and thermal insulation layer without joint, forming seamless roof and overall external wall insulation shell, with excellent waterproof and impermeability.

4.超強的自黏性能(無需任何中間黏結材料),與屋面及外墻黏結牢固，抗風揭和抗負風壓性能良好；整體噴涂施工，完全消除“熱節”和“冷橋”;柔性漸變技術可有效阻止防水層開裂；機械化作業、自動配料、質量均一、施工快、周期短。

4. Super strong self-adhesive performance (without any intermediate bonding material), strong bonding with roof and external wall, good anti wind exposure and anti negative wind pressure performance; overall spraying construction, completely eliminating "hot spot" and "cold bridge"; flexible gradual change technology can effectively prevent the waterproof layer from cracking; mechanized operation, automatic batching, uniform quality, fast construction and short cycle.

5.化學性質穩定，使用壽命長，對周圍環境不構成污染；離明火自熄，且燃燒時只炭化不滴淌，炭化層尺寸和外形基本不變，能有效隔斷空氣的進入，阻止火勢的蔓延，防火安全性能好。

5. Stable chemical properties, long service life, no pollution to the surrounding environment; self extinguishment of open flame, and only carbonization does not drip during combustion, and the size and shape of carbonization layer are basically unchanged, which can effectively block the entry of air, prevent the spread of fire, and have good fire safety performance.

作為目前的保溫防水一體化新型建材，聚氨酯硬泡保溫材料在國內建筑業的應用尚處于初始階段?？上驳氖?，為加快建筑保溫材料的革新，促進聚氨酯硬泡在建筑節能領域的推廣應用，建設部專門成立了“聚氨酯建筑節能應用工作組”,以推進聚氨酯硬泡保溫防水材料在國內建筑節能

As the only new building material of heat preservation and waterproof integration, the application of polyurethane rigid foam insulation material in domestic construction industry is still in the initial stage. Fortunately, in order to speed up the innovation of building thermal insulation materials and promote the popularization and application of rigid polyurethane foam in the field of building energy conservation, the Ministry of construction has specially set up a "polyurethane building energy saving application working group" to promote the polyurethane rigid foam thermal insulation and waterproof materials in domestic building energy conservation