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PC/PET alloy material production method

A manufacturing method and technology of alloy materials, applied in the field of plastic molding processing, can solve the problems of cumbersome replacement of molds, reduced production efficiency, insufficient drying, etc., and achieve the effects of good strength, improved stress crack resistance, and reasonable operation technology.

Inactive Publication Date: 2009-03-11
扬州金丰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing plastic alloy material processing and molding manufacturing process, injection molding is used. The raw materials are mixed and dried insufficiently, and the products are prone to uneven strength and poor rigidity. The injection molding size is determined by the mold, and it is cumbersome to replace the mold. , resulting in a decrease in production efficiency and an increase in cost. At the same time, the injection molding flow channel occupies raw materials and needs to be reprocessed manually

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Production equipment:

[0011] Mill: MF61 Guangzhou Chongtian Machinery Factory

[0012] Plastic mixer: LSH1200 Zhangjiagang Baixiong Kemei Machinery Co., Ltd.

[0013] Crystallization tower: American CROWN company

[0014] Drying tower: American CROWN company

[0015] Mixing and plasticizing machine: CM80, American CROWN company

[0016] T-shaped die: LT1500 American CROWN company

[0017] Three-roll cooling calender: American CROWN Company

[0018] Raw and auxiliary materials:

[0019] PC pellets: (polycarbonate C110)

[0020] PET chips: (polyethylene terephthalate CP-318)

[0021] Lubricants: at least one of KT-20 (ethylene-maleic anhydride-glycidyl ester terpolymer), MAH-g-LLDPE (cyclic anhydride grafted linear polyethylene), PMMA (polymethyl methacrylate) any kind.

[0022] Production steps:

[0023] Grind 22-42kg of PC pellets and 55-75kg of PET chips into a particle size of 80-120 mesh, add 1.5-4.5kg of lubricant to mix and granulate; cool to room tempe...

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Abstract

The invention relates to a method for preparing PC / PET alloy material, and belongs to plastic shaping processing technology. It comprises: mixing milled PC granulate powder, PET sheet and lubricating agent, precrystallizing, drying, mxing refining, plasticizing, neck ring mold shaping, cooling and calendering. The PC / PET alloy material is characterized by good thermal resistance, strength, tranparency, good size stability and small thickness deviation, and is ideal replacement for electrical switching membrane, car instrument board and car glass, and the production method is characterized by low cost and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of plastic molding processing, in particular to a PC / PET alloy material molding process. Background technique [0002] In the existing plastic alloy material processing and molding manufacturing process, injection molding is used. The raw materials are mixed and dried insufficiently, and the products are prone to uneven strength and poor rigidity. The injection molding size is determined by the mold, and it is cumbersome to replace the mold. , resulting in a reduction in production efficiency and an increase in cost. At the same time, the injection molding flow channel occupies raw materials and needs to be reprocessed manually. Contents of the invention [0003] The object of the present invention is to invent a method for producing a PC / PET alloy material with uniform strength, good rigidity, low cost and high efficiency. [0004] The technical scheme of the invention is: after mixing the ground PC pell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/00C08L69/00
Inventor 郭彬
Owner 扬州金丰新材料有限公司
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