在線客服
18273709701
益陽塑料包裝制品公司誠信求實、致力服務(wù)、唯求滿意
咨詢熱線18273709701
13873761127
首頁>>新聞資訊>>Company profile

Company profile

Company profile

瀏覽次數(shù): 時間:2017-08-21

 Polypropylene or polypropene (PP) is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including packaging, textiles (e.g. ropes, Under Armour, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.

  Since polypropylene is resistant to fatigue, most plastic living hinges, such as those on flip-top bottles, are made from this material. However, it is important to ensure that chain molecules are oriented across the hinge to maximise strength.

  Very thin sheets of polypropylene are used as a dielectric within certain high performance pulse and low loss RF capacitors.

  Many plastic items for medical or laboratory use can be made from polypropylene because it can withstand the heat in an autoclave. Its heat resistance also enables it to be used as the manufacturing material of consumer-grade kettles. Food containers made from it will not melt in the dishwasher, and do not melt during industrial hot filling processes. For this reason, most plastic tubs for dairy products are polypropylene sealed with aluminium foil (both heat-resistant materials). After the product has cooled, the tubs are often given lids made of a less heat-resistant material, such as LDPE or polystyrene. Such containers provide a good hands-on example of the difference in modulus, since the rubbery (softer, more flexible) feeling of LDPE with respect to PP of the same thickness is readily apparent. Rugged, translucent, reusable plastic containers made in a wide variety of shapes and sizes for consumers from various companies such as Rubbermaid and Sterilite are commonly made of polypropylene, although the lids are often made of somewhat more flexible LDPE so they can snap on to the container to close it. Polypropylene can also be made into disposable bottles to contain liquid, powdered or similar consumer products, although HDPE and polyethylene terephthalate are commonly also used to make bottles. Plastic pails, car batteries, wastebaskets, cooler containers, dishes and pitchers are often made of polypropylene or HDPE, both of which commonly have rather similar appearance, feel, and properties at ambient temperature.


主站蜘蛛池模板: 高清无码一区二区在线观看吞精| 三上悠亚ssni_229在线播放| 欧美老肥妇BBWBBWBBWPICS| 又大又硬又爽免费视频| 麻豆一二三四区乱码| 国产精品无码久久av不卡| ririai66视频在线播放| 无码人妻久久一区二区三区不卡 | 亚洲精品国产高清不卡在线| 精品视频一区二区| 国产亚洲人成a在线v网站| 国产你懂的视频| 国产精品国三级国产AV| 91福利视频一区| 天天狠天天透天干天天怕∴| 丝袜情趣在线资源二区| 日日夜夜操操操| 久久无码人妻一区二区三区 | 国产三级在线观看视频| 成人羞羞视频国产| 国产精品揄拍一区二区| 99久久精品费精品国产| 妞干网在线免费观看| 中文字幕aⅴ人妻一区二区| 日本免费观看网站| 亚洲av无码片在线播放| 欧美国产成人精品一区二区三区| 亚洲欧美日韩中文无线码| 特级毛片爽www免费版| 免费黄色片网址| 精品视频中文字幕| 啊啊啊好大在线观看| 色妞色综合久久夜夜| 国产亚洲精品精品国产亚洲综合 | 国产精品视频福利| 97影院在线午夜| 在线精品一区二区三区电影| a级高清观看视频在线看| 妞干网免费视频| √天堂中文www官网| 巨龙征母全文王雪琴笔趣阁|