阅读说明：本技术 用涤纶废纺解聚提纯tpa加中空hdpe改性的方法 (Method for modifying purified TPA (terephthalic acid) and hollow HDPE (high-density polyethylene) by using waste polyester spinning depolymerization ) 是由 邓忠权 邓军 邓丽 于 2019-06-04 设计创作，主要内容包括：本发明公开了我厂利用涤纶废旧纺织品化学解聚提纯TPA,加中空吹塑级HDPE料,改性成中空吹塑合金新材料的方法。这种方法是用加温至260~280度的甘油渣把涤纶废旧纺织品进行解聚、过滤、脱色、提纯后成TPA,加相容剂等改性助剂,添加一定比例的中空吹塑级HDPE材料混匀,挤出造粒,即得到TPA/HDPE中空吹塑专用合金新材料。(The invention discloses a method for purifying TPA (terephthalic acid) by utilizing chemical depolymerization of waste terylene textiles in our factory, adding a hollow blow molding-grade HDPE (high-density polyethylene) material and modifying the TPA material into a new hollow blow molding alloy material.)

1. The invention relates to a method for purifying TPA (terephthalic acid) by chemical depolymerization of waste terylene textiles, adding a hollow blow molding-grade HDPE (high-density polyethylene) material and modifying the TPA into a special alloy material for hollow blow molding, which is implemented according to the following process procedures that the waste terylene textiles are depolymerized by glycerol slag heated to 260 ~ 280 ℃ and the slag in the solution is filtered and cleaned, and then purified to obtain liquid TPA, TPA and HDPE hollow blow molding-grade raw materials are prepared according to the following weight parts, namely 10 parts of TPA, HDPE LLDPE85 parts of hollow blow molding-grade raw materials and 5 parts of compatible modifier.

2. according to claim 1, TPA plus HDPE hollow blow molding grade material, TPA20 parts, HDPE parts and 5 parts of compatibility modifier are prepared according to the following proportion.

3. According to claims 1 and 2, TPA plus HDPE blow molding grade material, TPA30 parts, hollow blow molding grade HDPE LLDPE65 parts, 5 parts of compatibility modifier are prepared according to the following proportion of each component and weight parts.

Technical Field

the invention discloses a method for modifying polyester waste textiles into a novel alloy material special for hollow blow molding by chemical depolymerization, purification of TPA (terephthalic acid) and hollow blow molding HDPE (high-density polyethylene) materials.

Technical Field

As is well known, the existing waste textiles can be recycled neither for reuse nor directly reprocessed except for a very small amount of use by people by physical methods, and can only be used as garbage landfill or incineration. Not only wastes land resources but also causes secondary pollution.

Disclosure of Invention

The invention aims to overcome the defects of the background technology, not only radically and completely eliminate the backward treatment mode, but also thoroughly solve the secondary pollution. The waste terylene textile is modified into a new alloy material special for hollow blow molding through chemical depolymerization, TPA purification and hollow blow molding grade HDPE material.

In order to achieve the above object, the technical solution of the present invention is as follows:

The invention discloses a method for purifying TPA (terephthalic acid) by utilizing chemical depolymerization of waste terylene textiles in our factory, adding a hollow blow molding-grade HDPE (high-density polyethylene) material and modifying the TPA material into a new hollow blow molding alloy material.

Detailed Description

The method for modifying the waste polyester textile chemical depolymerization purified TPA and hollow blow molding grade HDPE material into the new hollow blow molding special alloy material is described in detail below by combining specific examples, but the embodiment should not be construed as limiting the invention.