铝塑复合板的生产在外行人看来非常简单，但实际上它是一种技术含量高的新产品，因而铝塑板产品的质量控制上就有一定技术难度。这一期讲座主要谈一谈影响铝塑复合板１８０°剥离强度的因素。
The production of aluminum plastic composite board is very simple, but in fact it is a kind of new product with high technical content, so it is difficult to control the quality of the aluminum plastic plate. This lecture mainly talks about the factors affecting the 180 degree peel strength of aluminum plastic composite panels.
铝箔本身质量问题。这虽然是一个比较隐蔽的问题，但已经在铝塑板的质量中体现出来。一方面是铝材的热处理工艺问题，另一方面有的铝板和生产者在使用回收的废铝时质量控制不严。这就要求铝塑板的生产者在对材料生产者进行各方面的评价，确定合格分承包方后建立业务往来以确保材料质量。
The quality of aluminum foil itself. Although this is a relatively hidden problem, it has been reflected in the quality of aluminum plastic panels. On the one hand, the heat treatment process of aluminum, on the other hand, some aluminum plates and producers in the use of recycled aluminum waste quality control is not strict. This requires aluminium-plastic sheet producers to conduct various aspects of the evaluation of the material producers, determine qualified sub-contractors to establish business contacts to ensure the quality of materials.
铝板的前处理问题。铝板的清洗与化层质量直接关系到铝塑板的复合质量。铝板要经过清洗除去表面油污杂质等，使表面形成一层致密的化学层，以便于高分子膜产生很好的粘结。但有的厂家在前处理过程中对处理液的温度、浓度、处理时间、处理液的更新等控制不严，影响清洗质量。更有甚者个别新生产厂家对铝板不进行任何前处理而直接使用。所有这些必将导致复合质量差、１８０°剥离强度偏低或不稳定。

The problem of pretreatment of aluminum plate. The quality of aluminum sheet cleaning is directly related to the quality of aluminum plastic panels. Aluminum plate should first be cleaned to remove oil and impurities, so that the surface of a dense layer of chemical, in order to facilitate the formation of a good bonding polymer film. However, some manufacturers in the pretreatment process of the temperature, concentration, treatment time, treatment of liquid renewal control is not strict, affecting the quality of cleaning. What is more, some new manufacturers do not use any pre-treatment for aluminum plates directly. All these will lead to poor composite quality and low 180 degree peel strength.
蕊材的选用问题。因为高分子膜与ＰＥ的粘结与其他塑料相比较效果较佳且价格适中，无毒、易加工。所以蕊材选用ＰＥ。有些小生产厂家为了降低成本选用粘结效果差且燃烧时会产生致命毒气的ＰＶＣ，或选用ＰＥ回收料或选用ＰＥ原料与下角料混合。这样会因为ＰＥ的型号、老化程度等的不同而导致复合温度的不同，较终表面为复合质量不稳定。
The selection of stamen material. Because the adhesion between polymer membrane and PE is the best compared with other plastics, and the price is moderate, non-toxic and easy to process. So the material is PE. In order to reduce the cost, some small manufacturers choose PVC with bad bonding effect and will produce fatal gas when burning, or choose PE recycled materials or use PE material to mix with lower corner material. This will lead to different composite temperature because of the different type of PE, aging degree and so on, and the final surface is unstable composite quality.
高分子膜的选用问题。高分子膜是一种具有特殊性能的粘结材料，它影响复合质量的主要因素。高分子膜具有两面性，三层共挤而成。一面是与金属粘结，另一面是与ＰＥ粘结，中间一层是ＰＥ基材，两面的性质完全不同。两面的材料价格相差悬殊。与铝板店结的材料需要进口，价格昂贵。而与ＰＥ融合面的材料国内就能生产，因此有的高分子膜生产厂家就此大做文章，大量使用ＰＥ融合料以偷工减料牟取暴利。高分子膜的使用具有方向性，正反面不能掉换。高分子膜是一种自解膜，熔化不完全会导致假性复合。早期强度较高、时间一长，因风化影响会使强度降低，甚至鼓泡或开胶等现象
The selection of polymer film. Polymer membrane is a kind of adhesive material with special properties, which affects the main factors of compound quality. The polymer membrane has two sides and three layers are co extruded. One side is bonded with metal, the other side is bonded with PE, the middle layer is PE substrate, and the properties of both sides are completely different. The price of the two sides of the material is very different. The materials needed to be imported from the aluminum store are expensive. And PE fusion surface materials can be produced in China, so some polymer membrane manufacturers make a great deal of this, a large number of PE fusion materials to steal material for profit. The use of polymer membranes is directional and can not be replaced on the opposite side. Polymer membrane is a self solution membrane. Melting can not lead to false recombination. The early strength is higher and the time is longer. Because of the influence of weathering, it will reduce the strength, even bubble or glue.
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Thank you for your reading, the source of this article: more content and questions of the aluminum coil manufacturers, please click: we will continue to work hard for you to provide service, thank you for your support!