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Preparing method for modified polycarbonate used for drinking bucket

A technology for polycarbonate and drinking water buckets is applied in the field of preparation of modified polycarbonate, which can solve the problem of lack of improvement in polycarbonate performance defects, and achieve improved mechanical properties, improved weather resistance, repeated use times and service life. improved effect

Inactive Publication Date: 2016-02-24
宋介珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the polycarbonate used in the drinking water bucket is based on the existing polycarbonate by adding some functional additives and toner to fine-tune its performance and color. The performance has not changed significantly. For polycarbonate The performance defects of carbonate itself are not improved

Method used

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  • Preparing method for modified polycarbonate used for drinking bucket
  • Preparing method for modified polycarbonate used for drinking bucket
  • Preparing method for modified polycarbonate used for drinking bucket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1, take polystyrene 0.8Kg, polypropylene 0.25Kg, isobutyl methacrylate 0.15Kg, nano-titanium oxide 0.02Kg, cumene hydroperoxide 0.12Kg and maleic anhydride grafted polypropylene 0.3Kg into the reactor, react at 65°C, and obtain modified polystyrene after the reaction is completed;

[0029] Step 2: Treat the carbon fibers with nitric acid with a mass concentration of 60%, treat them at room temperature for 1 hour, wash and dry them with water, and obtain etched carbon fibers;

[0030] Step 3: Take 10.5Kg of polycarbonate, 1.39Kg of modified polystyrene, 0.7Kg of etched carbon fiber, 0.6Kg of PSt-g-MAH, 0.4Kg of KH540 silane coupling agent and 0.3Kg of T612 ethylene-propylene copolymer , put it into a twin-screw extruder, extrude after melt blending, and prepare a 1mm thick PC board;

[0031] In the whole molding process: the extruder heating temperature is 290°C, the head temperature is 280°C, the head die temperature is 280°C, the molding cycle time is 25s, the po...

Embodiment 2

[0034] Step 1, take polystyrene 1.2Kg, polypropylene 0.45Kg, isobutyl methacrylate 0.25Kg, nano-titanium oxide 0.08Kg, cumene hydroperoxide 0.18Kg and maleic anhydride grafted polypropylene 0.6Kg into the reactor, react at 65°C, and obtain modified polystyrene after the reaction is completed;

[0035] Step 2: Treat the carbon fibers with nitric acid with a mass concentration of 60%, treat them at room temperature for 1 hour, wash and dry them with water, and obtain etched carbon fibers;

[0036] Step 3: Take 10.7Kg of polycarbonate, 2.76Kg of modified polystyrene, 0.7Kg of etched carbon fiber, 0.6Kg of PSt-g-MAH, 0.4Kg of KH540 silane coupling agent and 0.3Kg of T612 ethylene-propylene copolymer , put it into a twin-screw extruder, extrude after melt blending, and prepare a 1mm thick PC board;

[0037] In the whole molding process: the extruder heating temperature is 290°C, the head temperature is 280°C, the head die temperature is 280°C, the molding cycle time is 25s, the po...

Embodiment 3

[0040] Step 1, take 1Kg of polystyrene, 0.38Kg of polypropylene, 0.22Kg of isobutyl methacrylate, 0.05Kg of nano-titanium oxide, 0.14Kg of tert-butyl peroxybenzoate and 0.5Kg of maleic anhydride grafted polypropylene. into the reactor, react at 65°C, and obtain modified polystyrene after the reaction is completed;

[0041] Step 2: Treat the carbon fibers with nitric acid with a mass concentration of 60%, treat them at room temperature for 1 hour, wash and dry them with water, and obtain etched carbon fibers;

[0042] Step 3: Take 10Kg of polycarbonate, 2.29Kg of modified polystyrene, 0.5Kg of etched carbon fiber, 0.5Kg of PSt-g-MAH, 0.2Kg of KH792 silane coupling agent and 0.2Kg of T613 ethylene-propylene copolymer, and put them into In the twin-screw extruder, extrude after melt blending to prepare 1mm thick PC board;

[0043] In the whole molding process: the extruder heating temperature is 290°C, the head temperature is 280°C, the head die temperature is 280°C, the molding...

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Abstract

The invention discloses a preparing method for modified polycarbonate used for a drinking bucket, and belongs to the technical field of high molecular polymers. The preparing method includes the following steps of 1, preparing modification polystyrene; 2, preparing etched carbon fibers; 3, by weight, taking 100-120 parts of polycarbonate, 5-12 parts of the modification polystyrene and the etched carbon fibers, 5-10 parts of PSt-g-MAH, 2-6 parts of coupling agent and 2-7 parts of ethylene-propylene copolymers, placing the materials into a double-screw extruder, carrying out extrusion molding after melt blending, and obtaining the modified polycarbonate. According to the preparing method for the modified polycarbonate, as polystyrene is modified, carbon fibers are etched, and the polycarbonate is modified through the modification polystyrene and the carbon fibers, the mechanical performance of PC is further improved, particularly the abrasion resistance and the scraping resistance of the PC are improved, and the technical problem that a polycarbonate bucket in the prior art is poor in mechanical performance, abrasion resistance and scraping resistance is effectively solved.

Description

technical field [0001] The invention discloses a preparation method of modified polycarbonate used for drinking water barrels, and belongs to the technical field of high molecular polymers. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. At present, only aromatic polycarbonate has been industrialized. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. [0003] Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant, etc., and has good mechanical properties at normal op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/00C08L51/06C08L23/08C08K13/06C08K9/02C08K7/06C08K3/22C08K5/544C08F291/00C08F220/18
CPCC08F255/02C08F257/02C08F285/00C08K2201/011C08L69/00C08L2205/02C08L2205/025C08L2205/035C08L51/003C08L51/06C08L23/0815C08K13/06C08K9/02C08K7/06C08K2003/2241C08K5/544C08F220/1804
Inventor 宋介珍
Owner 宋介珍