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(shí)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(guó)內(nèi)所有建材中導(dǎo)熱系數(shù)zui低(≤0.024)、熱阻值z(mì)ui高的保溫材料，導(dǎo)熱系數(shù)僅為EPS發(fā)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(xù)致密的表皮和近于100%的高強(qiáng)度互聯(lián)壁閉孔，具有理想的不透水性。采用噴涂法施工達(dá)到防水保溫層連續(xù)無(wú)接縫，形成無(wú)縫屋蓋和整體外墻保溫殼體，防水抗?jié)B性能優(yōu)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(qiáng)的自黏性能(無(wú)需任何中間黏結(jié)材料),與屋面及外墻黏結(jié)牢固，抗風(fēng)揭和抗負(fù)風(fēng)壓性能良好；整體噴涂施工，完全消除“熱節(jié)”和“冷橋”;柔性漸變技術(shù)可有效阻止防水層開(kāi)裂；機(jī)械化作業(yè)、自動(dòng)配料、質(zhì)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(xué)性質(zhì)穩(wěn)定，使用壽命長(zhǎng)，對(duì)周圍環(huán)境不構(gòu)成污染；離明火自熄，且燃燒時(shí)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(jìn)入，阻止火勢(shì)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(guó)內(nèi)建筑業(yè)的應(yīng)用尚處于初始階段。可喜的是，為加快建筑保溫材料的革新，促進(jìn)聚氨酯硬泡在建筑節(jié)能領(lǐng)域的推廣應(yīng)用，建設(shè)部專門成立了“聚氨酯建筑節(jié)能應(yīng)用工作組”,以推進(jìn)聚氨酯硬泡保溫防水材料在國(guó)內(nèi)建筑節(jié)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