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High-pressure polyurethane spraying machine, polyurethane foaming

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Supply of 2016 polyurethane cold storage exterior wall hull insulation equipment polyurethane spraying machine

价格 28000.00元/台
total supply
1000 台
MOQ
1 台
brand
国臻
area
ShandongJinan City
Delivery period:
Shipped within 1 days from the date of payment by the buyer
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area:Shandong Jinan City

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Jinan Guozhen Machinery Equipment Co., Ltd.

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Product Details
电源:
380V 50HZ
加热功率:
14000
最大输出压力:
22MPa
 供应2016年聚氨酯冷库外墙船体保温设备聚氨酯喷涂机 发泡剂:理论讲发泡剂F11的保温效果要优于141b的,但由于F11对臭氧层具有很强的破坏性当前已被环保系统禁产禁用,市面残留的所谓优质保温发泡剂F11多是不合格的产品,其杂质含量较高,生产出的聚氨酯泡沫产品脆性加大并常伴有烧心现象,保温性能已大幅劣化,远比不上环保型发泡剂141b(一氟二氯乙烷)。
我们的这些控制措施收到了相当不错的效果,在济宁金乡某客户处的数个冷库比较,使用我们白料体系的冷库明显比使用另一厂家白料的冷库耗电量低;而这些控制措施既需要昂贵的基础费用投入和相应的理论基础,更需要丰富的配料应用经验,并且优质、高价的原料尤其不可或缺,这对于某些技术实力较弱、质量意识不够的配料企业来说是不可能做到的。
二、泡沫尺寸稳定性:
聚氨酯泡沫材料在剧烈的温度变化或长期处于较低温度时会出现尺寸的变化(一般为收缩),尺寸的变化常体现为墙体上的泡沫开裂或脱落,而这些必然会影响冷库的正常使用,严重时可能会造成重大经济损失。除了经常性做好模拟的性能检测外,我们更注重在选择优质材料方面的控制:
①特种高官能度聚醚复配使用,使泡沫形成立体网状结构,大大提高了泡沫耐低温性能;而目前市面上的喷涂料常使用的4110聚醚中含有大量二官能度成分,反应后形成的大量的线性分子结构在低温情况下很难稳定;
②高官能度交联剂的使用也大大提高了泡沫的尺寸稳定性;
③我们选用的聚醚其生产阶段采用强碱催化,反应彻底,使聚醚保持较高反应率(即在与黑料接触时能反应的较为完全);与之对比的另一些采用弱碱催化的聚醚常常因含有惰性羟基而使得黑白料混合后反应不能完全,尺寸稳定性必然变差(同时此点也在很大程度上影响着组合料的成本)
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