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

Preparation method of toughened modified polycarbonate

A polycarbonate, toughening modification technology, applied in the field of preparation of toughened modified polycarbonate, can solve the problems of poor high temperature resistance, toxin production, unfavorable long-term repeated use, etc., to improve mechanical properties and overcome toughness and the effect of impact resistance

Inactive Publication Date: 2016-03-02
宋介珍
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Restrained by this technical solution, it has become a reality to modify PC through PET to make PC have high strength and high impact resistance, but first of all, this solution is not suitable for the field of drinking water barrels, because the content of PC is too low, other components The high content will inevitably affect the performance of PC itself, and secondly, it is not conducive to long-term repeated use; thirdly, the high temperature resistance is poor, and it will produce toxins for a long time when used as drinking water buckets, which will endanger people's health.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of toughened modified polycarbonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of toughened modified polycarbonate, comprising the steps of:

[0028] The first step, the preparation of modified PET: take polyethylene terephthalate 1Kg, polybutylene terephthalate 0.2Kg, terephthalic acid 0.15Kg, glass fiber 0.02Kg, polyimide Put 0.02Kg of fiber, 0.05Kg of dioctyl phthalate and 0.05Kg of ethylene-vinyl acetate copolymer EVA into a rheometer, melt and blend at 230°C, and cool to obtain modified PET;

[0029] Step 2. Preparation of modified rigid nano filler: Take 0.3Kg of alumina powder, 0.25Kg of nano-montmorillonite, 0.08Kg of silicon nitride powder and 0.21Kg of white carbon black, put them into a mold, and place them in a high-temperature furnace Carry out calcination at a temperature of 1450 ° C, a pressure of 550 MPa, and a calcination time of 3 hours. After cooling, it is crushed, put into a nano grinder and ground to an average particle size of 100 nm to obtain a modified rigid nano filler;

[0030] The 3rd step, get pol...

Embodiment 2

[0033] A preparation method of toughened modified polycarbonate, comprising the steps of:

[0034] Step 1, preparation of modified PET: take polyethylene terephthalate 1.5Kg, polybutylene terephthalate 0.5Kg, terephthalic acid 0.25Kg, glass fiber 0.06Kg, polyimide Put 0.08Kg of amine fiber, 0.12Kg of dioctyl phthalate and 0.15Kg of ethylene-vinyl acetate copolymer EVA into the rheometer, melt and blend at 230°C, and cool to obtain modified PET;

[0035] Step 2. Preparation of modified rigid nano filler: Take 0.3Kg of alumina powder, 0.25Kg of nano-montmorillonite, 0.08Kg of silicon nitride powder and 0.21Kg of white carbon black, put them into a mold, and place them in a high-temperature furnace Carry out calcination at a temperature of 1450 ° C, a pressure of 550 MPa, and a calcination time of 3 hours. After cooling, it is crushed, put into a nano grinder and ground to an average particle size of 50 nm to obtain a modified rigid nano filler;

[0036] The 3rd step, get polyca...

Embodiment 3

[0039] A preparation method of toughened modified polycarbonate, comprising the steps of:

[0040]Step 1, preparation of modified PET: take polyethylene terephthalate 1.3Kg, polybutylene terephthalate 0.4Kg, terephthalic acid 0.22Kg, glass fiber 0.05Kg, polyimide Put 0.06Kg of amine fiber, 0.09Kg of dioctyl phthalate and 100.12Kg of ethylene-vinyl acetate copolymer EVA into a rheometer, melt and blend at 230°C, and cool to obtain modified PET;

[0041] Step 2. Preparation of modified rigid nano-filler: Take 0.4Kg of alumina powder, 0.28Kg of nano-montmorillonite, 0.08Kg of silicon nitride powder and 0.22Kg of white carbon black into the mold and place in a high-temperature furnace Carry out calcination at a temperature of 1450 ° C, a pressure of 550 MPa, and a calcination time of 3 hours. After cooling, it is crushed and put into a nano grinder to grind to an average particle size of 30 nm to obtain a modified rigid nano filler;

[0042] The 3rd step, get polycarbonate 11Kg, ...

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 preparation method of toughened modified polycarbonate and belongs to the technical field of polymer materials. The preparation method comprises the following steps: Step 1, preparing modified PET; Step 2, preparing modified rigid nano-filler; and Step 3, putting 110-150 parts by weight of polycarbonate, modified PET, the modified rigid nano-filler, 6-15 parts by weight of chlorinated polyethylene, 5-12 parts by weight of a styrene / methyl methacrylate copolymer and 6-15 parts by weight of polybutyl acrylate into a twin-screw extruder, carrying out melt blending and molding. According to the modified polycarbonate, polycarbonate is modified through the modified PET and the modified rigid nano-filler. Thus, defects and insufficiencies of polycarbonate in aspects of toughness and shock resistance are effectively overcome, and the whole mechanical property of polycarbonate used as a scuttlebutt material is enhanced.

Description

technical field [0001] The invention discloses a preparation method of toughened modified polycarbonate, which belongs to the technical field of high polymer materials. Background technique [0002] Polycarbonate (referred to as PC), polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant, etc., and has good mechanical properties at normal operating temperatures. At present, the three major application fields of PC engineering plastics are glass assembly industry, automobile industry and electronics and electrical appliances industry, followed by industrial machinery parts, CDs, packaging, computers and other office equipment, medical and health care, films, leisure and protective equipment, etc. . [0003] Among them, PC is used to make drinking buckets, that is, bottle blowing grade polycarbonate, which is another important application of polycarbonate. The PC bucket is transparent, light in weight, good in impact resistance, resis...

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
IPC IPC(8): C08L69/00C08L67/02C08L79/08C08L23/08C08L23/28C08L25/14C08L33/08C08K13/06C08K3/22C08K3/34C08K3/36C08K7/14C08K5/12
CPCC08L69/00C08K2201/011C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2205/16C08L67/02C08L79/08C08L23/0853C08L23/286C08L25/14C08L33/08C08K13/06C08K2003/2227C08K3/346C08K3/34C08K3/36C08K7/14C08K5/12
Inventor 宋介珍
Owner 宋介珍