聚苯乙烯泡沫板的參數指標以及作用

Parameter index and function of polystyrene foam board

　　聚苯乙烯泡沫板又名泡沫板、EPS板是由含有揮發性液體發泡劑的可發性聚苯乙烯珠粒，經加熱預發后在模具中加熱成型的白色物體，其有微細閉孔的結構特點，主要用于建筑墻體，屋面保溫，復合板保溫，冷庫、空調、車輛、船舶的保溫隔熱，地板采暖，裝潢雕刻等用途較為廣泛。

Polystyrene foam board, also known as foam board and EPS board, is a white object made of expandable polystyrene beads containing volatile liquid foaming agent, which is heated and formed in the mold after pre heating. It has the structural characteristics of micro closed holes, and is mainly used for building walls, roof insulation, composite board insulation, heat insulation of refrigerators, air conditioners, vehicles, ships, floor heating, decoration and carving.

　　一、聚苯乙烯泡沫板參數指標

1、 Parameter index of polystyrene foam board

　　項目單位標準要求實測值說明

Explanation of measured values required by project unit standards

　　外觀質量/執行標準4.2要求符合標準要求 合格

Appearance quality/compliance with standard 4.2 requirements, qualified

　　允許尺寸偏差/執行標準4.2要求符合標準要求 合格

Permissible dimensional deviation/compliance with standard 4.2 requirements, qualified

　　表觀密度kg/m3≥20.022.8 合格

Apparent density kg/m3 ≥ 20.022.8 Qualified

　　壓縮強度KPa≥100105 合格

Compression strength KPa ≥ 100105, qualified

　　導熱系數W/(m.k)≤0.0410.030 合格

Thermal conductivity coefficient W/(m.k) ≤ 0.0410.030, qualified

　　尺寸穩定性%≤31/1/1 合格

Dimensional stability% ≤ 31/1/1 qualified

　　水蒸氣透過系數ng/(pa.m.s)≤4.54.0 合格

Water vapor permeability coefficient ng/(pa. m. s) ≤ 4.54.0, qualified

　　吸水率(V/V)%≤42 合格

Water absorption rate (V/V)% ≤ 42, qualified

　　斷裂彎曲負荷N≥2538 合格

Breaking bending load N ≥ 2538, qualified

　　彎曲變形Mm///

Bending deformation Mm///

　　氧指數%≥3044 合格

Oxygen index% ≥ 3044 qualified

　　燃燒等級級達到B2級符合B2級 合格

The combustion level reaches B2 level and meets B2 level qualification

　　二、聚苯乙烯泡沫板使用效果

2、 Effect of polystyrene foam board

　　1.對建筑物主體結構進行保護，延長建筑物壽命。由于外保溫是將保溫層置于結構外側，降低了由于溫度變化導致的結構變形產生的壓力，并減少空氣中有害物質和紫外線對結構的侵蝕。

1. Protect the main structure of the building and extend its lifespan. Due to the external insulation, the insulation layer is placed on the outer side of the structure, reducing the pressure caused by structural deformation due to temperature changes, and reducing the erosion of harmful substances and ultraviolet rays in the air on the structure.

　　2.有效消除“熱橋”以往采用內保溫，“熱橋”是難以避免的，而外墻保溫有效地防止熱橋的產生，避免結露。

2. Effectively eliminate the use of internal insulation in the past, which is difficult to avoid. On the other hand, external wall insulation effectively prevents the formation of thermal bridges and prevents condensation.

　　3.使墻體潮溫情況得到改善，一般內保溫需設隔汽層，而采用外保溫保溫材料的透溫性能遠遠強于主體結構，在墻體內部一般不會發生冷凝現象，結構層的整個墻身溫度提高了進一步增強了墻體的保溫性能。

3. To improve the moisture and temperature situation of the wall, a vapor barrier layer is generally required for internal insulation, while the thermal conductivity of external insulation materials is much stronger than that of the main structure. Condensation generally does not occur inside the wall, and the overall wall body temperature of the structural layer is increased, further enhancing the insulation performance of the wall.

　　4.有利于室溫保持穩定，采用外墻外保溫，由于墻體蓄熱能力較大的結構層在墻體內側，有利于室溫保持穩定。

4. It is conducive to maintaining stable room temperature by using external wall insulation. Due to the large heat storage capacity of the structural layer on the inner side of the wall, it is conducive to maintaining stable room temperature.

　　5.增加房屋使用面積。可以避免二次裝修對保溫層的破壞。

5. Increase the usable area of the house. It can avoid damage to the insulation layer caused by secondary decoration.

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