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      影響復合袋熱封強度和焊縫處分層的因素有哪些?
      發布于:2020/07/09 添加劑主要是指使用潤滑劑在聚乙烯薄膜的生產過程,特別是外部潤滑劑,它們中的大多數都是一些低熔點蠟,容易給薄的外表,實踐證明,當聚乙烯薄膜厚度超過60,添加劑給現場將大大增加。將平等的外表下產品,隨著膜厚度的增加,其內部添加劑測量也增加,所以攻擊的可能性也會增加,分出的添加劑對復合膜阻擋層,大大地削弱了復合強度,尤其是在封邊軸承簡單的開口,離層,一些制造商生產的真空袋經常遇到這樣的問題。
        Additives mainly refer to the use of lubricants in the production process of polyethylene film, especially external lubricants. Most of them are low melting point waxes, which are easy to give thin appearance. Practice has proved that when the thickness of polyethylene film exceeds 60, the additives will greatly increase to the site. With the increase of film thickness, the measurement of internal additives will increase, so the possibility of attack will also increase. The separated additives will greatly weaken the composite strength of composite film barrier layer, especially in the simple opening and separation layer of edge sealing bearing. Some manufacturers often encounter such problems in vacuum bags.
        解決方案:
        Solution:
        一、在復合前仔細檢查外觀張力,有必要達到要求,有必要能夠進行edm從頭處理,因為蠟在edm下可以蒸發,有高溫效果。
        I. carefully check the appearance tension before compounding, it is necessary to meet the requirements, it is necessary to be able to carry out EDM head treatment, because wax can evaporate under EDM, with high temperature effect.
        選擇合適的膠黏劑,即要加強膠的夾雜物對添加劑的分離,使其影響到強度。
        To select the proper adhesive, it is necessary to strengthen the separation of the inclusion of the adhesive from the additive, so that it can affect the minimum strength.
        固化控制與鍍鋁膜不一樣,應盡量在低溫條件下固化,以防止高溫增加分離。粘接劑的影響,粘接劑的選擇更終由含量決定,不同的含量,不同的基材,不同的使用應根據實際情況嘗試選擇組合粘接劑,否則同樣影響熱封強度。
        The curing control is different from that of aluminizing film. It should be cured at low temperature to prevent separation at high temperature. The effect of adhesive, the choice of adhesive is ultimately determined by the content, different content, different substrate, different use should be based on the actual situation to try to choose a combination of adhesive, otherwise it also affects the heat sealing strength.
        例如:當在包上的沖擊(液體或粉末),由于重內容(下降),達到密封的強度有較高的要求,體育添加必要的厚度考慮滑劑分離問題,提倡使用高盟公司YH501SL輔助膠粘劑和密封強度和剝離強度將大大進步。如果有鋁箔膠,我們要求接觸強度很好。yh2000鋁箔膠完全符合質量要求。yh2000年以后,鋁箔膠粘劑不僅具有較高的初粘性,而且還含有“親鋁基團”,可以提高膠粘劑與鋁箔的接觸強度。高蒙生產的YH3150和YH3166也屬于這類膠,可用于煮袋和覆膜。如果復合涂層結構選用YH501S, YH501SL鍍鋁膠將對熱封強度和密封強度有很大的提高。
        For example: when the impact on the package (liquid or powder), due to the heavy content (drop), there is a higher requirement to reach the sealing strength, sports add the necessary thickness to consider the problem of the separation of the sliding agent, and promote the use of yh501sl auxiliary adhesive of GAOMENG company and the sealing strength and peeling strength will be greatly improved. If there is aluminum foil adhesive, we require good contact strength. Yh2000 aluminum foil adhesive completely meets the quality requirements. After yh2000, aluminum foil adhesive not only has high initial viscosity, but also contains "aluminophilic group", which can improve the contact strength between adhesive and aluminum foil. Yh3150 and yh3166 produced by GAOMENG also belong to this kind of glue, which can be used for bag boiling and film covering. If yh501s is selected as the composite coating structure, yh501sl aluminum coating adhesive will greatly improve the heat sealing strength and sealing strength.
        綜上所述,影響復合袋熱封強度和復合袋焊縫處分層的因素還有很多,需要在生產過程中進行很好的總結。
        To sum up, there are many factors that affect the heat sealing strength of composite bags and the separation of weld layers of composite bags, which need to be summarized in the production process.
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