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自封袋的循环利用
发布于:2021/01/19 c。也有一部分的原因是因为自封袋的价格比较便宜,没人会在乎。但是由于自封袋本身的特性,被随意丢弃之后很难自己分解再生,破坏公共环境。
Self sealing bag is now a very high frequency of use of a common tool in life, the daily consumption is also very amazing. It is because of the huge consumption every day that many self sealing bags that can still be used are discarded. Part of the reason is that the price of self sealing bags is cheaper and no one cares. However, due to the characteristics of self sealing bag itself, it is difficult to decompose and regenerate after being discarded at will, damaging the public environment.
自封袋聚氨酯热弹性体有较高的撕裂强度,通常可达天然橡胶10倍。但耐高温性能铰差,作环境温度高于能就有所下降。电性能方面,由于聚氨酪热弹性体具有一定的亲水特性能,吸收空气小的水分而位绝缘性下降.在高绝缘场合中使用受到限制热塑性弹性体除亡述外二烯之类。
The tear strength of self sealing polyurethane elastomer is 10 times that of natural rubber. However, the high temperature resistance is poor, and it will decrease when the ambient temperature is higher than energy. In terms of electrical properties, due to the hydrophilic properties of polyurethane elastomer, it can absorb small amount of moisture in the air and reduce the insulation. In the case of high insulation, the use of thermoplastic elastomer is limited except diene.
济南自封袋
在大多数情况下,成注塑的制的原材料都用全新料。但对于一些使用要求不高的制品,人们往往来用再生原料进行注塑生产。这一方面可以降低成本;另一方面可以实现塑料材料的循环利用。
In most cases, the raw materials for injection molding are brand new. But for some products with low requirements, people often use recycled materials for injection production. On the one hand, it can reduce the cost; on the other hand, it can realize the recycling of plastic materials.
有利于环境保护。大多数热理性塑料制品都是可以回收利用的,如通常,用于注塑制品的回料都是一些比较干净、老化程度水严重的塑料。其主要来源有两个方面。
It is conducive to environmental protection. Most thermal plastic products can be recycled. For example, the recycled materials used for injection molding products are relatively clean and aging plastics. There are two main sources.
塑料生产厂生产过程中产生的边角料、废次品等,填料的大小和表面形状对塑料性能竹一定的影响,球状、立方体状的通常可提高成功加L性能,但机械强度差;16鳞片状的则相反,粒子越细,对聚合物的刚性、冲击性、拉仲强度和外观等改进作用越大。加入填料可能导致聚合物某些性能下降,如粉状填料常使塑料的拉伸强度、撕裂强度和耐低温性下降。
The size and surface shape of fillers have a certain influence on the properties of leftover materials and defective products produced in the production process of plastic plants. Spherical and cubic fillers can usually improve the properties of successful addition of L, but the mechanical strength is poor. On the contrary, the finer the particles are, the greater the improvement effect on the rigidity, impact, tensile strength and appearance of the polymer is. The addition of fillers may decrease some properties of polymers, such as the tensile strength, tear strength and low temperature resistance of plastics.
大量加入时使成型加上性能和表面光泽下降,故应当合理地选用品种、规格和加入量。在选择填料时,要求填料具有以下几点性能:在树脂中分散性好、填充量大;不降低树脂的加丁性能及制品的物理件能的改性效果;本身应具备耐水性、耐热性、耐化学腐蚀件;个影响其他助剂的分散件和什能;对增塑剂的吸收量小,无曲折白化现象。
When a large number of additives are added, the molding performance and surface gloss will be reduced, so the varieties, specifications and dosage should be selected reasonably. In the selection of fillers, fillers are required to have the following properties: good dispersion in the resin, large filling amount; do not reduce the modification effect of the properties of the resin and the physical parts of the product; it should have water resistance, heat resistance, chemical corrosion resistance parts; it should be able to affect the dispersions and properties of other additives; it has small absorption of plasticizer and no tortuous whitening phenomenon.
关于填料的作用机理,一般解释为:填亢粒子的活性表回与一些聚合物大分子链结合,形成交联结构。当其中的一个分子接受到应力时,可通过这些交联点将应力分散到其他分子土。
The mechanism of the fillers is generally explained as follows: the active surface of the fillers combines with some polymer macromolecular chains to form a cross-linking structure. When one of the molecules is stressed, the stress can be dispersed to other molecular soils through these crosslinking points.
如果其小某一链断裂,其他铁同样DJ起到加固作用,而不会迅速影响到整个制品。如今,塑料袋在生活中随处可见,人们在装东西的时候也会自然而然的想到使用塑料袋。但是,塑料袋在方便人们的是生活的同时,也在危害你的健康。
If a small chain breaks, other iron DJ also plays a reinforcing role, and will not quickly affect the whole product. Nowadays, plastic bags can be seen everywhere in life, people will naturally think of using plastic bags when they are loading things. However, plastic bags are not only convenient for people's life, but also harmful to your health.
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