食品保鮮膜性能分析與正確選用

包裝工程論文編號:BZ017  論文字?jǐn)?shù):24745.頁數(shù):42

目錄
中文摘要......................................................... II
ABSTRACT......................................................... III
目錄.............................................................IV
第一章 緒論........................................................1
 1.1選題背景....................................................1
 1.2選題意義....................................................3
 1.3調(diào)查現(xiàn)狀...............................................4
 1.4本文研究的主要內(nèi)容和方法....................................8
第二章 食品保鮮膜主要性能參數(shù)......................................9
 2.1拉伸強(qiáng)度和斷裂伸長率........................................9
 2.2直角撕裂強(qiáng)度...............................................11
 2.3自粘性....................................................12
 2.4氣體透過率.................................................14
 2.5水蒸氣透過量...............................................16
 2.6厚度......................................................17
 2.7透光率和霧度...............................................17
第三章 食品保鮮膜性能檢測對比與分析................................19
 3.1拉伸強(qiáng)度和斷裂伸長率的檢測對比和分析.......................19
 3.2直角撕裂強(qiáng)度的檢測對比....................................23
 3.3自粘性的檢測對比和分析....................................24
 3.4氣體透過率的檢測對比......................................25
 3.5水蒸氣透過量的檢測對比和標(biāo)準(zhǔn)...............................26
 3.6厚度的檢測................................................27
 3.7透光率和霧度的檢測.........................................28
 3.8檢測數(shù)據(jù)報告..............................................29
 3.9綜合分析..............................................29
第四章 食品保鮮膜的正確選用........................................30
 4.1保鮮膜在生活中的作用.......................................30
 4.2保鮮膜分類.................................................30
 4.3選用的標(biāo)準(zhǔn).................................................32
 4.4問卷調(diào)查...................................................33
 4.5保鮮膜行業(yè)的展望...........................................35
結(jié)論...............................................................37
參考文獻(xiàn)...........................................................38
致謝...............................................................39

摘要：由于食品包裝中有害物質(zhì)殘留過高，食品因此被污染而引起中毒的事件頻頻發(fā)生，給創(chuàng)建和諧社會帶來諸多不利因素。
 保鮮膜在家庭中逐漸普及，質(zhì)優(yōu)的保鮮膜不僅可以防止冰箱中各種菜肴串味、保持菜肴的新鮮度，同時在鎖住美食營養(yǎng)上也有獨(dú)到的一面。保鮮膜通常為聚乙烯膜，也稱 PE保鮮膜。不同廠家生產(chǎn)的保鮮膜因生產(chǎn)工藝的區(qū)別、質(zhì)量控制的不同而導(dǎo)致產(chǎn)品質(zhì)量參差不齊。
 本文從實(shí)驗(yàn)的角度，先對食品保鮮膜能參數(shù)做個系統(tǒng)的了解，然后根據(jù)器材做相關(guān)實(shí)驗(yàn)，著重研究了拉伸試驗(yàn)。在了解到國標(biāo)以后進(jìn)行對比，不僅檢驗(yàn)該試樣是否符合相關(guān)標(biāo)準(zhǔn)，而且對食品保鮮膜做個更徹底的了解和認(rèn)識，為接下來更好的選用保鮮膜打好基礎(chǔ)。
 結(jié)合生活經(jīng)驗(yàn)，把一些正確選用食品保鮮膜的方法和竅門介紹給大家，為大家生活中帶來便利。
 
 
關(guān)鍵詞：和諧社會、食品保鮮膜、性能檢測、正確選用

Abstract：As a lot of harmful substances in food packaging residues are so high that food was contaminated and caused by frequently occurrence of poisoning, which do harm for creating a harmonious society in many negative factors.     Food wrapping paper plays a more and more important role in the general family. Preservation of high quality films can not only prevent a varise of dishes in the refrigerator remix to maintain the freshness of food, nutritional food at the same time lock on the one hand there are unique. Usually wrap polyethylene film, also known as PE cling film. Produced by different manufacturers wrap due to the difference between production processes, quality control of product quality caused by different variable.     This article from the experimental point of view, the first food wrap can be a system understanding of the parameters, and then in accordance with the relevant equipment to do experiments, focusing on the tensile test. In the GB after that comparison, not only to examine the specimen with the relevant standards, but also to wrap food to be a more thorough understanding and knowledge, a better choice for the next wrap and lay a good foundation.
 I introduce some correct way to choose the wrap food and know-how to use it combinating of life experience, in order to facilitate the life of everyone.   
Keywords: Harmonious society、food wrapping paper、performance testing、 selection