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

Polishing liquid for finish machining of notebook computer casing and preparation method of polishing liquid

A lapping and polishing technology for notebook computers, which is applied in the field of lapping and polishing fluid for the finishing of notebook computer shells and its preparation, can solve the problems of high surface roughness and low polishing efficiency of injection molded parts, and achieve reduced surface roughness, improved hand feeling and The effect of appearance quality

Inactive Publication Date: 2017-12-22
ANHUI SHENGLI PRECISION MFG TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the grinding tool for polishing is usually a hard material, and the hardness of PC / ABS is high, the polishing efficiency is low and the surface roughness of the injection molded part after polishing is high

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

[0020] (1) Add 2g of hydroxypropyl starch ether and 0.5g of isopropyl triisostearate titanate to 15g of zirconium dioxide, and heat to 115-125°C for 15 minutes to keep and mix to obtain material I;

[0021] (2) Add 5g of fine silica aerogel and 2g of nano-titanium dioxide to 15g of hydroxypropyl-β-cyclodextrin / polyglutamic acid, mix well, and then transfer to 0-5°C to seal and stand still 3h, then heat up to 110-120℃, keep and mix for 10min, then material II is obtained;

[0022] (3) Add material I, material II and 5g molecular sieve micropowder to 250g of water under stirring, and heat to reflux and keep stirring for 15min. The resulting mixture is transferred to a ball mill with a cylinder rotating speed of 17.3r / min, and the ball is milled for 5h. liquid.

[0023] Preparation of hydroxypropyl-β-cyclodextrin / polyglutamic acid: Add 45-55°C deionized water to 10g hydroxypropyl-β-cyclodextrin and 20g polyglutamic acid with stirring until complete Dissolve and add 0.5g of ferric chlo...

Embodiment 2

[0025] (1) Add 2g of hydroxypropyl starch ether and 0.5g of isopropyl triisostearate titanate to 15g of zirconium dioxide, and heat to 115-125°C for 15 minutes to keep and mix to obtain material I;

[0026] (2) Add 5g of fine silica aerogel and 2g of nano-titanium dioxide to 15g of hydroxypropyl-β-cyclodextrin / polyglutamic acid, mix well, and then transfer to 0-5°C to seal and stand still 3h, then heat up to 110-120℃, keep and mix for 10min, then material II is obtained;

[0027] (3) Add material I, material II and 5g molecular sieve micropowder to 250g of water under stirring, and heat to reflux and keep stirring for 15min. The resulting mixture is transferred to a ball mill with a cylinder rotating speed of 17.3r / min, and the ball is milled for 5h. liquid.

[0028] Preparation of hydroxypropyl-β-cyclodextrin / polyglutamic acid: Add 45-55°C deionized water to 10g hydroxypropyl-β-cyclodextrin and 20g polyglutamic acid with stirring until complete Dissolve and add 0.5g of ferric chlo...

Embodiment 3

[0031] (1) Add 2g of hydroxypropyl starch ether and 0.5g of isopropyl triisostearate titanate to 20g of zirconium dioxide, and heat to 115-125°C for 15 minutes to keep and mix to obtain material I;

[0032] (2) Add 10g of fine silica aerogel and 2g of nano-titanium dioxide to 20g of hydroxypropyl-β-cyclodextrin / polyglutamic acid, mix thoroughly and then transfer to 0-5℃ to seal and stand still 5h, then heat to 110-120℃ and keep mixing for 15min, then material II is obtained;

[0033] (3) Add material I, material II and 5g molecular sieve micropowder to 250g of water under stirring, and heat to reflux and keep stirring for 15min. The resulting mixture is transferred to a ball mill with a cylinder rotating speed of 17.3r / min, and the ball is milled for 5h. liquid.

[0034] Preparation of hydroxypropyl-β-cyclodextrin / polyglutamic acid: Add 45-55℃ deionized water to 5g hydroxypropyl-β-cyclodextrin and 15g polyglutamic acid with stirring until complete Dissolve and add 0.3g of ferric ch...

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 polishing liquid for finish machining of a notebook computer casing and a preparation method of the polishing liquid and relates to the technical field of polishing of injection molded parts. The polishing liquid is prepared from raw materials in parts by weight as follows: 15-20 parts of zirconium dioxide, 15-20 parts of hydroxypropyl-beta-cyclodextrin / polyglutamic acid, 5-10 parts of fine silicon dioxide aerogel, 5-10 parts of molecular sieve raw powder, 1-5 parts of hydroxypropyl starch ether, 1-5 parts of nano titanium dioxide, 0.5-2 parts of titanium triisostearoylisopropoxide and 150-250 parts of water. The polishing liquid is applicable to polishing of the notebook computer casing mainly prepared from PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) copolymer, defects of flash, burr and the like produced through injection molding machining are effectively overcome, the surface roughness of the notebook computer casing is remarkably reduced, so that the Ra value is as low as 0.036 mu m.

Description

Technical field: [0001] The invention relates to the technical field of injection molded parts polishing, in particular to a polishing liquid for finishing a notebook computer casing and a preparation method thereof. Background technique: [0002] The shell of a notebook computer is not only the most direct way to protect the body, but also an important factor affecting its heat dissipation effect, weight, and aesthetics. Because notebook computers have the characteristics of compact structure, strong mobility, and changeable use environment, the casing material is required to have high mechanical strength, scratch resistance, excellent high and low temperature impact resistance, good heat resistance, burn resistance, and light weight. Moreover, it has excellent forming processability, electroplating and low cost. [0003] At present, most of the plastic shell laptops on the market use PC / ABS engineering plastic alloy as raw materials. This material not only has the excellent heat...

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): C09G1/02
CPCC09G1/02
Inventor 刘晓春乔印松黄现东全梦平钟远来
Owner ANHUI SHENGLI PRECISION MFG TECH CO LTD