Polyester composite material with controllable crystallinity for sheet material

A technology of crystalline polyester and composite materials, which is applied in the field of controllable crystalline polyester composite materials for sheet materials, can solve the problems that the concept of controllable crystallization and high temperature resistance have not been proposed, and achieve high toughness, controllable crystallization, and temperature resistance outstanding effect

Inactive Publication Date: 2013-05-15
顾红军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concept of controlled crystallization and high temperature resistance were not raised.

Method used

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  • Polyester composite material with controllable crystallinity for sheet material
  • Polyester composite material with controllable crystallinity for sheet material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 100 parts of polyethylene terephthalate dried to below 100 ppm of water content, intrinsic viscosity 0.8 (Sinopec Yizheng Chemical Fiber Company), 6 parts of ethylene-sodium methacrylate ionomer (DuPont Sulyn8920), 5 parts Polyethylene glycol-400-dilaurate, 2 parts of trimellitic anhydride (Shanghai Reagent Company), 8 parts of ethylene-butyl methacrylate-glycidyl acrylate (DuPont PTW) and 0.5 parts of 1010 were mixed evenly . The twin-screw extruder melts and extrudes at 280°C. Water-cooled strips and diced. The controllable crystalline polyester composite material is obtained.

[0065] Controlled crystallization polyester composites were vacuum dried at 120 °C for 8 h. After drying, the slices are extruded into a special sheet extruder. The barrel temperature of the special extruder for sheet is set at 240-310°C. The head temperature is 280°C. The sheet extruder had an aspect ratio of 45:1. The extruded controlled crystallization polyester sheet is immediately ...

Embodiment 2

[0070] 80 parts of polyethylene terephthalate dried to water content below 100ppm, intrinsic viscosity 0.85 (Sinopec Yizheng Chemical Fiber Company) and 20 parts of polybutylene terephthalate, intrinsic viscosity 1.0 (Sinopec Yizheng Chemical Fiber Company) ), 1 part of sodium montanate (Clariant Chemical Company NAV101), 5 parts of neopentyl glycol dibenzoate, 2 parts of 1,4-polybenzobisoxazole (Shanghai Reagent Company), 8 parts of Ethylene-ethyl acrylate-glycidyl methacrylate (Atofina AX8900) and 0.5 parts of 1010 were mixed evenly. The twin-screw extruder melts and extrudes at 270°C. Water-cooled strips and diced. That is, a controlled crystalline polyester composite material is obtained.

[0071] The controlled crystallization polyester sheet composite was vacuum dried at 130°C for 5 hours. After drying, the slices are extruded into a special sheet extruder. The barrel temperature of the special extruder for sheet is set at 240-310°C. The head temperature is 230-290°...

Embodiment 3

[0076] Dry 100 parts of polyethylene terephthalate with an intrinsic viscosity of 0.8 (Sinopec Yizheng Chemical Fiber Company), 2 parts of talcum powder (Liaoning Haicheng Talcum Powder Company, 800 mesh) and 0.5 part of polyethylene terephthalate dried to a water content of less than 100 ppm. Sodium fatty acid (Beijing Reagent Company), 5 parts of polyethylene glycol 2000 (Liaoning Oak Chemical Company), 2 parts of toluene diisocyanate (Shanghai Reagent Company), 8 parts of ethylene-butyl methacrylate-acrylic acid shrink Glyceride (DuPont PTW) and 0.5 parts of 1010 were mixed well. The twin-screw extruder melts and extrudes at 280°C. Water-cooled strips and diced. The controllable crystalline polyester composite material is obtained.

[0077] The controlled crystallization polyester composite was vacuum dried at 140°C for 3 hours. After drying, the slices are extruded into a special sheet extruder. The barrel temperature of the special extruder for sheet is set at 240-310...

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Abstract

The invention relates to a polyester composite material with controllable crystallinity for sheet materials and a preparation method thereof, and the polyester composite material with controllable crystallinity for sheet materials is prepared by the extrusion of the following raw materials in a twin-screw extruder: 100 parts by weight of polyester A, 0.3-5 parts by weight of crystallization nucleating agent B, 0.2-5 parts by weight of crystallization promoter agent C, 0.02-5 parts by weight of crystallization controlling agent D, and 1-15 parts by weight of toughening agent E. The polyester composite material with controllable crystallinity for sheet materials of the invention has the advantages of high mechanical strength, good toughness, high-temperature resistance, and controllable crystallinity, and is environmentally friendly. Polyester sheet materials prepared by the polyester composite material with controllable crystallinity for sheet materials have the characteristics of goodmechanical properties, temperature resistance, good toughness, etc.

Description

Technical field: [0001] The invention relates to a controllable crystallization polyester composite material for sheets made of polyester, a crystallization nucleating agent, a crystallization accelerator, a crystallization control agent and a toughening agent. In more detail, it relates to the properties of sheets with tensile strength, impact strength, bending strength, etc.; good temperature resistance and no warping deformation at the use temperature. [0002] In addition, the present invention relates to the extrusion processing technology of the sheet, and in more detail, relates to a controllable crystallization polyester composite material for the sheet that can be used in microwave ovens, ovens, refrigerators and electronic packaging. Background technique [0003] In recent years, with the rapid development of electronics, packaging and food industries, the demand for plastic sheets in the domestic market continues to grow at a rate of about 12% per year. At presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L23/08C08L33/02C08L71/08C08L79/08C08K5/1539C08K5/098C08K5/103C08K5/29C08K3/34C08K3/36
Inventor 顾红军
Owner 顾红军
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