Abstract: A manufacturing method of a polymer includes the following steps. Terephthalic acid, butanediol, adipic acid, and carboxybenzene are used as raw materials to perform an esterification reaction to obtain a reactant. A catalyst is added to the reactant, and a polymerization reaction is performed.

Abstract: A manufacturing method of a polyester for a plastic wrap at least includes the following steps. An aromatic carboxylic acid, an aliphatic carboxylic acid, and an aliphatic alcohol are provided, wherein the aromatic carboxylic acid includes at least two of a phthalic acid, an isophthalic acid, and a terephthalic acid. The aromatic carboxylic acid, the aliphatic carboxylic acid and the aliphatic alcohol are subjected to at least an esterification reaction, a pre-polymerization reaction, and a polymerization reaction in sequence, so as to obtain a polybutylene adipate terephthalate.

Abstract: A treatment method of waste fabric containing polyester fiber and elastic fiber is provided. The method includes the steps of using at least one polar solvent to perform at least a two-stage separation treatment on the waste fabric and recycling the waste fabric after the treatment. The at least one polar solvent is selected from the group consisting of dimethylformamide (DMF), dimethylacetamide (DMAC), N-methylpyrrolidone (NMP), gamma-butyrolactone (GBL), and dimethylsulfoxide (DMSO).

Abstract: A disposal method for waste fabric containing polyester, nylon, and dye includes the following steps: step (a): providing a waste fabric containing polyester, nylon, and dye; and step (b): performing a first-stage treatment including acid treatment on the waste fabric to obtain a first liquid material and a first solid material. The first-stage treatment includes acid treatment with an acid liquid mixed with an oxidant. The first solid material includes recycled polyester, and/or the first liquid material includes recycled nylon or degraded nylon.

Abstract: A disposal method for waste fabric containing polyester and nylon includes: step (a): providing a waste fabric containing polyester and nylon; step (b): performing a first-stage treatment including acid treatment on the material to obtain a first liquid material and a first solid material; step (c): performing a second-stage treatment on the first liquid material to obtain a second liquid material and a second solid material; step (d): performing a third-stage treatment including acid treatment on the first solid material to obtain a third liquid material; step (e): performing a fourth-stage treatment on the third solid material to obtain a fourth liquid material and a fourth solid material, wherein the acid concentration of the second liquid material is lower than the acid concentration of the first liquid material, and the acid concentration of the fourth liquid material is lower than the acid concentration of the third liquid material.

Abstract: A disposal method for waste fabric containing polyester, spandex, and dye includes the following steps: step (a): providing a waste fabric containing polyester, spandex, and dye; and step (b): performing a first-stage treatment including elution on the waste fabric to obtain a first liquid material and a first solid material. The first-stage treatment includes elution with a cosolvent mixed with an oxidant. The first solid material includes recycled polyester, and/or the first liquid material includes recycled spandex or degraded spandex.

Abstract: An anti-reflection energy-saving film structure and a method for manufacturing the same are provided. The anti-reflection energy-saving film structure includes a carrier layer, a barrier layer, an anti-reflection layer, and an adhesive layer. The carrier layer has a first surface and a second surface. The barrier layer is arranged on the first surface of the carrier layer. The anti-reflection layer is arranged on the second surface of the carrier layer. The anti-reflection layer has a plurality of moth-eye structures. The plurality of moth-eye structures cover 60% to 100% of a total area of the second surface, and a top of each of the plurality of moth-eye structures is conical or arc-shaped. The adhesive layer is arranged on the barrier layer.

Abstract: A method for producing a polyimide film includes: providing a polyimide coating solution; providing a high temperature resistant polyester substrate; and coating the polyimide coating solution on the high temperature resistant polyester substrate, so that a polyimide wet coating is formed on the high temperature resistant polyester substrate; implementing a first baking step, which includes: baking the polyimide wet coating at a first temperature of between 60° C. and 130° C. to remove a part of organic solvent in the polyimide wet coating; implementing a second baking step, which includes: baking the polyimide wet coating at a second temperature of between 140° C. and 220° C. to remove a residual part of the organic solvent in the polyimide wet coating, so as to form the polyimide film on the high temperature resistant polyester substrate; and separating the polyimide film and the high temperature resistant polyester substrate from each other.