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| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:利用雙螺桿擠出機(jī)制備PET母料，將制得的母粒與純PET共混、流延、拉伸制備聚對(duì)苯二甲酸乙二醇酯（PET）反射膜。通過(guò)反射率、密度及孔隙率、光澤度、示差掃描量熱分析（DSC）等測(cè)試方法研究不同拉伸倍率、不同無(wú)機(jī)粒子含量及配比對(duì)PET反射膜的反射性能、密度、光澤度及熱性能的影響。研究表明：拉伸倍率為4倍時(shí)，反射率最高，隨拉伸倍率的增大，反射率和光澤度都下降；無(wú)機(jī)粒子的含量為32%（質(zhì)量百分?jǐn)?shù)，下同）能獲得最佳的反射率和較好的光澤度。 本文重點(diǎn)考察無(wú)機(jī)粒子總量為32%時(shí)，二氧化鈦（TiO2）與硫酸鋇（BaSO4）配比對(duì)反射膜性能的影響。研究結(jié)果表明：當(dāng)其配比為3:1（質(zhì)量百分比，下同）時(shí)，PET反射膜的反射率最高， 關(guān)鍵詞：PET母料；反射率；二氧化鈦；硫酸鋇
Abstract:Using twin-screw extruder to produce the masterbatches of polyethylene terephthalate, the prepared masterbatches can be blended with pure PET, cast, and stretch to produce the reflective film of polyethylene terephthalate(PET). Researching on different stretching ratio, different inorganic particle content and proportion on the reflective properties, density and thermal properties of the reflective film of polyethylene terephthalate (PET) through the test method of reflectivity, density and porosity, gloss and differential scanning calorimetry (DSC) and so on. The study show that: when the stretching ratio is 4, the reflectivity will be the largest. With the increase of stretching ratio, the reflectivity and glossiness will decline obviously; the lowest thickness of reflective film is 188 μm; the optimum reflectivity can be obtained when the inorganic particle content is 32% (mass fraction similarly hereinafter). This paper makes a study of the influence of the ratio of titanium and barium sulfate on the performance of reflective film when the total inorganic particle content is 32%. The results show that: the reflectivity of reflective film is the largest when the ratio is 3:1. Key words：Masterbatch of Polyethylene Terephthalate; Reflectivity; Titanium Dioxide; Barium Sulfate
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