Abstract:
Disclosed is a method for manufacturing a film. 50 wt % to 85 wt % of a first polyester and 50 wt % to 15 wt % of a second polyester are dried and mixed to form a mixture. The first polyester is polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or combinations thereof. The second polyester is copolymerized of 1 part by mole of terephthalic acid, m parts by mole of 1,4-cyclohexanedimethanol (1,4-CHDM), n parts by mole of 1,3-cyclohexanedimethanol (1,3-CHDM), and o parts by mole of ethylene glycol (EG). m+n+o=1, 0≦o≦0.4, 0.6≦m+n≦1, and 0.06≦n/m≦1.31. The mixture is melted and blended to form a polyester composition, which is extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a thermal setting.
Abstract translation:公开了一种制造薄膜的方法。 将50重量%至85重量%的第一聚酯和50重量%至15重量%的第二聚酯干燥并混合以形成混合物。 第一聚酯是聚对苯二甲酸乙二醇酯(PET),聚萘二甲酸乙二醇酯(PEN)或其组合。 第二聚酯共聚有1份摩尔对苯二甲酸,m份摩尔的1,4-环己烷二甲醇(1,4-CHDM),n份摩尔的1,3-环己烷二甲醇(1,3-CHDM), 和o摩尔份的乙二醇(EG)。 m + n + o = 1,0≦̸ o≦̸ 0.4,0.6≦̸ m + n≦̸ 1和0.06≦̸ n / m≦̸ 1.31。 将混合物熔融并共混以形成聚酯组合物,其被挤出以形成片材。 然后将片材双轴拉伸得到薄膜。 然后用热定形处理双轴拉伸的膜。
Abstract:
A copolymer is provided, which includes a chemical structure of: R is C1-6 alkylene group. T is a terminal group including C1-6 alkyl group, C3-6 cycloalkyl group, or C6-12 aromatic group. l is 0.05 to 0.3, m is 0.1 to 0.2, n is 0.5 to 0.8, l+m+n=1, x is 40 to 100, and o is 10 to 120. An epoxy resin composite is also provided, which includes 100 parts by weight of epoxy resin and 1 to 20 parts by weight of toughness enhancer such as the above copolymer.
Abstract:
An extended film and a manufacturing method thereof are provided. The extended film includes a poly(lactic acid) and a block copolymer, wherein the block polymer includes a first block, a second block and a third block that connected with each other by chemical bonds. The extended film is formed by steps of mixing poly(lactic acid) and the block copolymer to form a mixture, compressing the mixture to form a board body and extending the board body to form an extended film, thereby forming an extended film having properties of high thermal-resistance and high transparency, the film thus obtained is applicable for packaging use.