Unlock instant, AI-driven research and patent intelligence for your innovation.

PET/PE high puncture strength material and production method thereof

A technology of puncture strength and production method, which is applied in the field of PET/PE high puncture strength material and its production, can solve the problems of poor impact toughness, uneven crystal structure, high glass transition temperature and melting point, and achieves improved rheological properties, The effect of blending modification is simple and easy

Inactive Publication Date: 2018-12-11
NINGBO RUICHENG PACKING MATERIAL
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the relatively high glass transition temperature and melting point of PET, the crystallization speed during processing is slow, the crystal structure is uneven, and the impact toughness is not good. Therefore, people try to modify PET in various ways, such as adding crystallization nucleating agents. agent; use inorganic particles, fiber reinforcement; or blend modification with other polymers, etc., to make up for the defects of PET and improve its performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] According to the proportion of each component, PET88%, PE10%, maleic anhydride grafted ethylene-octene copolymer 2%, respectively weigh the raw materials, PE is used as a toughening agent, and maleic anhydride grafted ethylene-octene copolymer is used as a compatibilizer , and then mix the raw materials, mix them and add them to a high-speed mixer, the stirring speed is 200 rpm, and the time is 5-8 minutes;

[0018] (2) Extrude the mixture through a twin-screw extruder. The temperature of each zone of the twin-screw extruder is 230-240°C, the temperature of the head is 220-230°C, and the screw speed is 75-80 rpm. Under the action of maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH), the anhydride group and the terminal hydroxyl group of PET undergo a chemical reaction, and the generated block product increases the force of the phase interface and improves the product quality. dispersion;

[0019] (3) The extruded product is dried and pelletized by microwav...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a PET / PE high puncture strength material, which is composed of the following raw materials in mass ratio: 76 to 88% of PET; 10 to 18% of PE; an 2 to 6% of maleic anhydride grafted ethylene-octene copolymer. Two materials (PET, PE) with large interfacial interaction, poor compatibility and weak adhesion are modified by maleic anhydride grafting. The blending modification issimple and easy. Due to new substances addition, by changing the structure of the aggregation and improving the rheological properties of the polymer, the advantages of the original polymer are retained, and new properties are obtained.

Description

technical field [0001] The invention relates to a PET / PE material with high puncture strength and a production method thereof. Background technique [0002] PET is the abbreviation of polyester and polyethylene terephthalate, commonly known as polyester. Polyester has high transparency and good gloss. It has excellent gas barrier, oil barrier and fragrance retention properties. Rigid and tough, the tensile strength is 5 to 10 times that of PE and 3 times that of PA; it is widely used in the manufacture of synthetic polyester fibers and films, and can also be used as engineering plastics in machinery, electronics, automobiles, electrical appliances and consumer goods . [0003] However, due to the relatively high glass transition temperature and melting point of PET, the crystallization speed during processing is slow, the crystal structure is uneven, and the impact toughness is not good. Therefore, people try to modify PET in various ways, such as adding crystallization n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/06C08L51/06
CPCC08L67/02C08L2205/03C08L2205/08C08L23/06C08L51/06
Inventor 邵峥雷刚
Owner NINGBO RUICHENG PACKING MATERIAL