聚苯乙烯泡沫板的參數(shù)指標(biāo)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(fā)性液體發(fā)泡劑的可發(fā)性聚苯乙烯珠粒，經(jīng)加熱預(yù)發(fā)后在模具中加熱成型的白色物體，其有微細(xì)閉孔的結(jié)構(gòu)特點(diǎn)，主要用于建筑墻體，屋面保溫，復(fù)合板保溫，冷庫、空調(diào)、車輛、船舶的保溫隔熱，地板采暖，裝潢雕刻等用途非常廣泛。

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(shù)指標(biāo)

1、 Parameter index of polystyrene foam board

　　項(xiàng)目單位標(biāo)準(zhǔn)要求實(shí)測(cè)值說明

Explanation of measured values required by project unit standards

　　外觀質(zhì)量/執(zhí)行標(biāo)準(zhǔn)4.2要求符合標(biāo)準(zhǔn)要求 合格

Appearance quality/compliance with standard 4.2 requirements, qualified

　　允許尺寸偏差/執(zhí)行標(biāo)準(zhǔn)4.2要求符合標(biāo)準(zhǔn)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(qiáng)度KPa≥100105 合格

Compression strength KPa ≥ 100105, qualified

　　導(dǎo)熱系數(shù)W/(m.k)≤0.0410.030 合格

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

　　尺寸穩(wěn)定性%≤31/1/1 合格

Dimensional stability% ≤ 31/1/1 qualified

　　水蒸氣透過系數(shù)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(fù)荷N≥2538 合格

Breaking bending load N ≥ 2538, qualified

　　彎曲變形Mm///

Bending deformation Mm///

　　氧指數(shù)%≥3044 合格

Oxygen index% ≥ 3044 qualified

　　燃燒等級(jí)級(jí)達(dá)到B2級(jí)符合B2級(jí) 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(duì)建筑物主體結(jié)構(gòu)進(jìn)行保護(hù)，延長建筑物壽命。由于外保溫是將保溫層置于結(jié)構(gòu)外側(cè)，降低了由于溫度變化導(dǎo)致的結(jié)構(gòu)變形產(chǎn)生的壓力，并減少空氣中有害物質(zhì)和紫外線對(duì)結(jié)構(gòu)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(nèi)保溫，“熱橋”是難以避免的，而外墻保溫有效地防止熱橋的產(chǎn)生，避免結(jié)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(nèi)保溫需設(shè)隔汽層，而采用外保溫保溫材料的透溫性能遠(yuǎn)遠(yuǎn)強(qiáng)于主體結(jié)構(gòu)，在墻體內(nèi)部一般不會(huì)發(fā)生冷凝現(xiàn)象，結(jié)構(gòu)層的整個(gè)墻身溫度提高了進(jìn)一步增強(qiáng)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(wěn)定，采用外墻外保溫，由于墻體蓄熱能力較大的結(jié)構(gòu)層在墻體內(nèi)側(cè)，有利于室溫保持穩(wěn)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(duì)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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