現(xiàn)在人們所使用的聚氨酯雜件屬于聚合物中的一種，這種物質(zhì)可以簡(jiǎn)單分為兩種，其中一種是熱塑性產(chǎn)品，另外一種是熱固型產(chǎn)品。在使用聚氨酯雜件時(shí)，可以將這種產(chǎn)品作為單一材料加以應(yīng)用，也可以將聚氨酯作為復(fù)合型產(chǎn)品來(lái)投入使用。在選擇聚氨酯雜件配件時(shí)，應(yīng)該先注意了解產(chǎn)品的可調(diào)性，可調(diào)節(jié)的范圍越大，在實(shí)際應(yīng)用期間就更加靈活便捷，也可以避免很多不必要的操作流程。另外產(chǎn)品的硬度也是人們的選購(gòu)標(biāo)準(zhǔn)之一，為了提升聚氨酯的承重量，配件應(yīng)該具備一定的強(qiáng)度，在使用期間避免因?yàn)橛捕炔桓叨霈F(xiàn)質(zhì)量問(wèn)題，在選擇配件期間，應(yīng)該注意這些問(wèn)題。

Nowadays, the polyurethane impurities used by people belong to one kind of polymer, which can be simply divided into two kinds, one is thermoplastic products, the other is thermosetting products. In the use of polyurethane sundries, this product can be used as a single material, or polyurethane can be used as a composite product. When choosing polyurethane accessories, attention should be paid to the adjustability of the product. The wider the adjustable range, the more flexible and convenient it will be in practical application, and many unnecessary operation processes will be avoided. In addition, the hardness of the product is also one of the purchase criteria. In order to enhance the weight of polyurethane, accessories should have a certain strength, avoid quality problems due to low hardness during use. During the selection of accessories, we should pay attention to these problems. 

在使用聚氨酯雜件時(shí)，主要是利用了材料的柔韌性特點(diǎn)，所以在選用聚氨酯雜件配件的過(guò)程中也應(yīng)該注意這個(gè)問(wèn)題，如果配件的柔韌性不高，在使用期間無(wú)法達(dá)到理想的應(yīng)用效果，在替換和安裝之后也容易發(fā)生問(wèn)題，所以在選擇配件的過(guò)程中需要遵循以上方法。

In the use of polyurethane miscellaneous parts, the main use of the flexibility of materials, so in the process of choosing polyurethane miscellaneous parts should also pay attention to this problem, if the flexibility of parts is not high, can not achieve the desired application effect during use, after replacement and installation, it is also prone to problems, so in the process of choosing accessories, we need to follow the above methods.

聚氨酯雜件的阻燃方法主要有四種，一種是在聚氨酯雜件原料中，引入具有阻燃作用含磷、鹵素等阻燃性元素的多元醇。由于到場(chǎng)化學(xué)反響，這些元素被引入聚合物分子的骨架上，因而使泡沫塑料阻燃作用長(zhǎng)期。

There are four main flame retardant methods for polyurethane impurities. One is the introduction of polyols containing phosphorus, halogen and other flame retardant elements into the raw materials of polyurethane impurities. Due to the presence of chemical reactions, these elements are introduced into the framework of polymer molecules, thus making the flame retardant effect of foam plastics for a long time.

或者是在生產(chǎn)聚氨酯雜件的材質(zhì)中，添加不具有反響活性的但具有阻燃作用的物質(zhì)。也可以把聚氨酯雜件浸于含阻燃劑的液體中，然后取出泡沫塑料，將其干燥。這種要領(lǐng)實(shí)用于開(kāi)孔率較高的泡沫塑料；在聚氨酯雜件的外層另加一層防火涂層，從而起到阻燃的作用。

Or in the production of polyurethane miscellaneous materials, adding non-reactive but flame retardant substances. It is also possible to immerse polyurethane sundries in liquid containing flame retardants, then take out foam plastics and dry them. This method can be applied to foam plastics with high opening rate, and a fire-retardant coating is added to the outer layer of polyurethane sundry parts, thus playing a role of flame retardant.

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