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自封袋是否可以循环利用?
发布于:2021/08/31 自封袋是现在使用频率非常高的一个生活常用工具,每天的消耗量也是十分的惊人。正是因为每天庞大的消耗量导致有很多的还可以继续使用的自封袋被丢弃。也有一部分的原因是因为自封袋的比较便宜,没人会在乎。
Self sealing bag is a frequently used tool in daily life, and the daily consumption is also very amazing. It is precisely 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 relatively cheap, and no one will care.
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。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。
Self sealing polyurethane thermal elastomer has high tear strength, usually up to 10 times that of natural rubber. However, the high temperature resistance is poor, and it will decrease when the ambient temperature is higher than the energy. In terms of electrical properties, polyurethane thermoelastomers have certain hydrophilic properties, absorb small moisture in the air and reduce the positional insulation. The use of thermoplastic elastomers in high insulation occasions is limited, except for dienes. In most cases, the raw materials for injection molding are brand new materials. However, for some products with low requirements, people often use recycled raw materials for injection molding 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。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。
Conducive to environmental protection. Most thermorational plastic products can be recycled. For example, the recycled materials used for injection molding products are clean and seriously aged plastics. There are two main sources. The size and surface shape of fillers, such as leftover materials, waste and defective products produced in the production process of plastic factories, have a certain impact on the plastic properties. Spherical and cubic ones can usually improve the performance of successful l addition, but the mechanical strength is poor; On the contrary, the finer the particles, the greater the improvement on the rigidity, impact, tensile strength and appearance of the polymer. The addition of fillers may lead to the decline of some properties of polymers. For example, powdered fillers often reduce 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。
Large amount of addition will reduce the molding performance and surface gloss, so the variety, specification and addition amount should be selected reasonably. When selecting the filler, the filler is required to have the following properties: good dispersion in the resin and large filling amount; It does not reduce the addition performance of the resin and the modification effect of the physical part energy of the product; It shall have water resistance, heat resistance and chemical corrosion resistance; Dispersions and energy that affect other additives; The absorption of plasticizer is small and there is no tortuous whitening phenomenon.
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