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Nitrocellulose varnish and preparation method thereof

A technology of nitro varnish and formula, which is applied in coatings, polyester coatings, etc., can solve the problem that nitro varnish is difficult to achieve electrostatic spraying, and achieve the effects of reducing loss, excellent performance, and improving utilization rate

Active Publication Date: 2013-08-21
HUIZHOU CHANGRUNFA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the process of using electrostatic spraying in industrial manufacturing is very mature, but because electrostatic spraying needs to put forward special requirements on the electrical conductivity, anti-sagging energy, and facade leveling performance of the coating, the conventional nitro varnishes currently on the market It is difficult to meet the technical requirements of electrostatic spraying

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] This embodiment provides a kind of nitro varnish, its formula contains main agent and electrostatic thinner two components, wherein:

[0078] 1. Main ingredient (calculated according to mass percentage):

[0079] Alkyd resin with 70% solid content 20.0%;

[0080] Modified aldehyde and ketone resin with 70% solid content 5.0%;

[0081] 35% content 1 / 4 second nitrocellulose pulp 30.0%;

[0082] 30% content 1 / 2 second nitrocellulose pulp 30.0%;

[0083] Plasticizer 5.0%;

[0084] Defoamer 0.2%;

[0085] Leveling agent 0.2%;

[0086] Anti-settling agent 1.0%;

[0087] Matte Powder 0.6%;

[0088] Butyl acetate 6.0%;

[0089] Propylene glycol methyl ether acetate 2.0%;

[0090] 2. Electrostatic diluent (calculated according to mass percentage):

[0091] Toluene 10.0%;

[0092] Xylene 30.0%;

[0093] Isobutanol 6.0%;

[0094] Ethyl acetate 15.0%;

[0095] Butyl acetate 18.0%;

[0096] Cyclohexanone 8.0%;

[0097] Propylene glycol methyl ether acetate 12.0%;

...

Embodiment 2

[0119] This embodiment provides a kind of nitro varnish, its formula contains main agent and electrostatic thinner two components, wherein:

[0120] 1. Main ingredient (calculated according to mass percentage):

[0121] Yatumei YTM5670 23.3%;

[0122] 70%BASF A-81 5%;

[0123] Xuefei 35% content 1 / 4 second nitrocellulose pulp 28%;

[0124] Xuefei 30% content 1 / 2 second nitrocellulose pulp 30%;

[0125] Baocheng DX-360 plasticizer 5%;

[0126] Sanhua AC300 0.2%;

[0127] BYK333 0.2%;

[0128] Deqian 201P anti-settling agent 1.0%;

[0129] Matte powder OK607 0.8%;

[0130] Butyl acetate 5%;

[0131] Propylene glycol methyl ether acetate 1.5%;

[0132] 2. Electrostatic diluent (calculated according to mass percentage):

[0133] Toluene 15.0%;

[0134] Xylene 25.0%;

[0135] Isobutanol 5.0%;

[0136] Ethyl acetate 16.5%;

[0137] Butyl acetate 18.0%;

[0138] Cyclohexanone 8.0%;

[0139] Propylene glycol methyl ether acetate 11.0%;

[0140] BYK ES-80 conductive addi...

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Abstract

The invention discloses a nitrocellulose varnish and a preparation method thereof. The raw material formula of the nitrocellulose varnish contains two components, namely main agent and electrostatic thinner; by reasonably selecting materials and adjusting the proportions of the materials, the nitrocellulose varnish has the same performance requirement on hardness, luster, hand feeling, adhesive force and the like as the conventional product; and by adjusting the formulas of the main agent and the electrostatic thinner, the nitrocellulose varnish disclosed by the invention has good conductivity, volatile speed, anti-sagging property, elevation levelling property and other performances. The nitrocellulose varnish disclosed by the invention is suitable for the electrostatic spraying process;compared with the air spraying nitrocellulose varnish, the utilization rate of the paint can be greatly increased; the nitrocellulose varnish is suitable for special-shaped pieces such as guitars andornaments; and the cost of the paint is greatly reduced, the loss is reduced and the pollution to the environment is lowered.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to coating technology, in particular to a nitro varnish suitable for an electrostatic spraying process and a preparation method thereof. Background technique [0002] At present, the nitro varnish used in the production of wood products such as musical instruments, handicrafts, and decorations is generally applied by compressed air spraying and brushing. Using conventional compressed air spraying, brushing and other processes, there are problems such as low paint utilization rate, large loss, large environmental pollution, high labor cost, low work efficiency, and difficult control of coating film quality by manual operation. [0003] At present, the process of using electrostatic spraying in industrial manufacturing is very mature, but because electrostatic spraying needs to put forward special requirements on the electrical conductivity, anti-sagging energy, and facade leveling pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D161/00C09D101/18C09D7/12
Inventor 孔令飞
Owner HUIZHOU CHANGRUNFA PAINT
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