CN104399870A - Novel alcohol-based casting paint containing tree ash and manufacturing method thereof - Google Patents

Abstract

The invention discloses a novel alcohol-based casting paint containing tree ash. The paint is characterized by being composed of the following raw materials in parts by weight: 60 to 85 parts of quartz powder, 35 to 40 parts of zeolite, 7 to 10 of diatomite, 2.3 to 4.1 parts of E12 epoxy resin, 1 to 2 parts of linoleic acid, 1.2 to 3.4 parts of n-butanol, 2 to 4 parts of magnetic ferric oxide, 0.5 to 0.8 part of trihydroxymethyl ethane, 1.1 to 2.3 parts of butadiene-styrene rubber, 1 to 2 parts of sodium-based bentonite, 12 to 14 parts of willow branch, 14 to 18 parts of poplar branch, 4 to 6 parts of ethyl silicate, 45 to 65 parts of ethanol, and 3 to 6 parts of auxiliary agent. The tree ash is modified and then added into the raw materials to replace the suspending agent, and thus the production cost is reduced. At the same time, the prepared paint has the advantages of strong wear-resistant performance, and excellent breathability and quick-drying performance in a high temperature/low temperature environment, and can fulfill the requirements of production of large-scale casting.

Description

A kind of New Alcohol Based cast paint adding modification tree ash and preparation method thereof

Technical field

The present invention relates to cast paint field, be specifically related to a kind of New Alcohol Based cast paint adding modification tree ash and preparation method thereof.

Background technology

Cast paint refers to for being coated in die cavity or core surface, to change the casting auxiliary material of the performances such as its surperficial refractoriness, chemical stability, anti-metal erosion, anti-stick grittiness, the disperse system that it is made up of the material of multiple different in kind, its composition mainly comprises the compositions such as refractory material, suspending agent, carrier, binding agent and special additive.Require that coating has good processing performance, service behaviour, quality stability and applies reappearance when acting on foundry goods, can play heat insulation on the one hand, equalization temperature, exempt the object of the impingment corrosion of molten metal, the defect such as cracking, sand holes, white iron formation that can prevent cast product from causing because Local cooling is too fast on the other hand.Cast paint is of a great variety, substantially can be divided into two classes: water based paint and alcohol-base paint.Wherein alcohol-base paint is both curable through lighting after application, does not need to dry, and can shorten the production cycle, Simplified flowsheet, reduces drying plant investment, is be cast a kind of quick drying paint that boundary widely uses, has been widely used in the production of steel, iron, coloured foundry goods.

But alcohol-base foundry coating has many defects in prior art, such as: suspension stability is poor, in long-distance transport and deposit easy layering in process, resistance to elevated temperatures is poor, hardness is low, low, the anti-stick grittiness of poor chemical stability, anti-metal performance of flushing is weak, make alcohol-base foundry coating function singleness, cannot large-scale industrial production be met.

Summary of the invention

Object of the present invention is just to provide a kind of New Alcohol Based cast paint adding modification tree ash and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of New Alcohol Based cast paint adding modification tree ash, it is characterized in that, be made up of the raw material of following weight portion: silica flour 60-85, zeolite 35-40, diatomite 7-10, E12 epoxy resin 2.3-4.1, linolenic acid 1-2, n-butanol 1.2-3.4, magnetic oxide 2-4, trimethylolethane 0.5-0.8, butadiene one styrene rubber 1.1-2.3, sodium bentonite 1-2, willow branch 12-14, branch of poplar 14-18, silester 4-6, ethanol 45-65, auxiliary agent 3-6.

Described auxiliary agent is made up of following raw materials in part by weight: plant ash 15-17, graphite 85-100, ice crystal 20-25, cyclodextrin 1.4-3.6, natural coating agent which has to be dissolved in alcohol before use 2.4-3.8, ethanol 25-30, lithium bentonite 1-2, nanometer silicon carbide 0.7-1.3, brown iron oxide 2.1-3.6, nano-calcium carbonate 3-5, chitin 0.9-2.1, paper pulp 12-17, suitable quantity of water, its preparation method is by graphite, ice crystal is put into calcining furnace and calcine 2-3 hour at 550-680 DEG C, take out, the hydrochloric acid solution putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, add water stirring pulping, simultaneously, add brown iron oxide, nano-calcium carbonate grinds, spraying dry obtains xeraphium, cyclodextrin, natural coating agent which has to be dissolved in alcohol before use are joined in ethanol and heat stirring and dissolving, adds plant ash, lithium bentonite, nanometer silicon carbide high-speed stirred 10-20 minute, until fineness reaches the lithium bentonite that less than 50 μm obtain modification, xeraphium, modification lithium bentonite, chitin, paper pulp are added suitable quantity of water grinding granulation, dries and get final product.

Described a kind of preparation method adding the New Alcohol Based cast paint of modification tree ash, is characterized in that comprising the following steps:

(1) willow branch, branch of poplar are put into retort calcination processing 3-4 hour at 450-550 DEG C after drying together with zeolite, take out, the hydrochloric acid solution putting into 10-12% soaks 3-6 hour, filter and take out, use clear water cyclic washing, dry and pulverize, the tree ash of obtained modification;

(2) modification tree ash above-mentioned steps obtained stirs pulping and is heated to 140-160 DEG C together with the ethanol of diatomite, 1/4 weight, add E12 epoxy resin, linolenic acid, maintenance temperature stirring 1-2 hour, be cooled to 50-60 DEG C and add aluminium hydroxide grinding 30-40 minute, spraying dry obtains xeraphium;

(3) ethanol of sodium bentonite and 1/5 weight is stirred, leave standstill 10-12 hour, then add trimethylolethane, butadiene one styrene rubber, silester be heated to 70-80 DEG C and stir 30-40 minute;

(4) silica flour is dropped in reactor, add the ethanol agitation grinding 10-15 minute of magnetic oxide and surplus, add step (2), (3) product, n-butanol, auxiliary agent again, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grinding is until fineness reaches less than 50 μm.

The present invention has following beneficial effect: tree ash carries out modifiedly adding in raw material by the present invention, substitute suspending agent to use, reduce production cost, simultaneously obtained coating all has strong wearability, excellent gas permeability and quick-drying under high temperature, low temperature environment, can meet the requirement that heavy castings are produced.

Detailed description of the invention

Described a kind of New Alcohol Based cast paint adding modification tree ash, it is characterized in that, be made up of the raw material of following weight portion: silica flour 68, zeolite 35, diatomite 7, E12 epoxy resin 2.3, linolenic acid 1, n-butanol 1.2, magnetic oxide 2, trimethylolethane 0.5, butadiene one styrene rubber 1.1, sodium bentonite 1, willow branch 12, branch of poplar 14, silester 6, ethanol 45, auxiliary agent 3.

Described auxiliary agent is made up of following raw materials in part by weight: plant ash 17, graphite 89, ice crystal 22, cyclodextrin 1.6, natural coating agent which has to be dissolved in alcohol before use 2.4, ethanol 25, lithium bentonite 1, nanometer silicon carbide 0.8, brown iron oxide 2.5, nano-calcium carbonate 3, chitin 0.9, paper pulp 12, suitable quantity of water, its preparation method is by graphite, ice crystal is put into calcining furnace and calcine 2-3 hour at 550-680 DEG C, take out, the hydrochloric acid solution putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, add water stirring pulping, simultaneously, add brown iron oxide, nano-calcium carbonate grinds, spraying dry obtains xeraphium, cyclodextrin, natural coating agent which has to be dissolved in alcohol before use are joined in ethanol and heat stirring and dissolving, adds plant ash, lithium bentonite, nanometer silicon carbide high-speed stirred 10-20 minute, until fineness reaches the lithium bentonite that less than 50 μm obtain modification, xeraphium, modification lithium bentonite, chitin, paper pulp are added suitable quantity of water grinding granulation, dries and get final product.

Preparation method comprises the following steps:

(1) willow branch, branch of poplar are put into retort calcination processing 3-4 hour at 450-550 DEG C after drying together with zeolite, take out, the hydrochloric acid solution putting into 10-12% soaks 3-6 hour, filter and take out, use clear water cyclic washing, dry and pulverize, the tree ash of obtained modification;

(2) modification tree ash above-mentioned steps obtained stirs pulping and is heated to 140-160 DEG C together with the ethanol of diatomite, 1/4 weight, add E12 epoxy resin, linolenic acid, maintenance temperature stirring 1-2 hour, be cooled to 50-60 DEG C and add aluminium hydroxide grinding 30-40 minute, spraying dry obtains xeraphium;

(3) ethanol of sodium bentonite and 1/5 weight is stirred, leave standstill 10-12 hour, then add trimethylolethane, butadiene one styrene rubber, silester be heated to 70-80 DEG C and stir 30-40 minute;

(4) silica flour is dropped in reactor, add the ethanol agitation grinding 10-15 minute of magnetic oxide and surplus, add step (2), (3) product, n-butanol, auxiliary agent again, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grinding is until fineness reaches less than 50 μm.

The technical indicator of being processed the cast paint obtained by above-described embodiment is as follows:

(1) coating abrasion performance: 0.51;

(2) 24 hours coating suspension rates are placed: 99.1%;

(3) apply, dry, appearance of coat after cooling: flawless, without bubbling and the uniform coating of macroscopic pin hole.

Claims (2)

1. one kind is added the New Alcohol Based cast paint of modification tree ash, it is characterized in that, be made up of the raw material of following weight portion: silica flour 60-85, zeolite 35-40, diatomite 7-10, E12 epoxy resin 2.3-4.1, linolenic acid 1-2, n-butanol 1.2-3.4, magnetic oxide 2-4, trimethylolethane 0.5-0.8, butadiene one styrene rubber 1.1-2.3, sodium bentonite 1-2, willow branch 12-14, branch of poplar 14-18, silester 4-6, ethanol 45-65, auxiliary agent 3-6, described auxiliary agent is made up of following raw materials in part by weight: plant ash 15-17, graphite 85-100, ice crystal 20-25, cyclodextrin 1.4-3.6, natural coating agent which has to be dissolved in alcohol before use 2.4-3.8, ethanol 25-30, lithium bentonite 1-2, nanometer silicon carbide 0.7-1.3, brown iron oxide 2.1-3.6, nano-calcium carbonate 3-5, chitin 0.9-2.1, paper pulp 12-17, suitable quantity of water, its preparation method is by graphite, ice crystal is put into calcining furnace and calcine 2-3 hour at 550-680 DEG C, take out, the hydrochloric acid solution putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, add water stirring pulping, simultaneously, add brown iron oxide, nano-calcium carbonate grinds, spraying dry obtains xeraphium, cyclodextrin, natural coating agent which has to be dissolved in alcohol before use are joined in ethanol and heat stirring and dissolving, adds plant ash, lithium bentonite, nanometer silicon carbide high-speed stirred 10-20 minute, until fineness reaches the lithium bentonite that less than 50 μm obtain modification, xeraphium, modification lithium bentonite, chitin, paper pulp are added suitable quantity of water grinding granulation, dries and get final product.

2. a kind of preparation method of adding the New Alcohol Based cast paint of modification tree ash according to claim 1, is characterized in that comprising the following steps:

(1) willow branch, branch of poplar are put into retort calcination processing 3-4 hour at 450-550 DEG C after drying together with zeolite, take out, the hydrochloric acid solution putting into 10-12% soaks 3-6 hour, filter and take out, use clear water cyclic washing, dry and pulverize, the tree ash of obtained modification;

(2) modification tree ash above-mentioned steps obtained stirs pulping and is heated to 140-160 DEG C together with the ethanol of diatomite, 1/4 weight, add E12 epoxy resin, linolenic acid, maintenance temperature stirring 1-2 hour, be cooled to 50-60 DEG C and add aluminium hydroxide grinding 30-40 minute, spraying dry obtains xeraphium;

(3) ethanol of sodium bentonite and 1/5 weight is stirred, leave standstill 10-12 hour, then add trimethylolethane, butadiene one styrene rubber, silester be heated to 70-80 DEG C and stir 30-40 minute;

(4) silica flour is dropped in reactor, add the ethanol agitation grinding 10-15 minute of magnetic oxide and surplus, add step (2), (3) product, n-butanol, auxiliary agent again, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grinding is until fineness reaches less than 50 μm.