阅读说明：本技术 一种改性黑硅石粉体及其制备方法和应用 (A kind of modified horn stone powder and its preparation method and application ) 是由 舒庆 廖梦圆 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种改性黑硅石粉体,按重量百分比计,包括以下成分组成：二氧化硅60%-70%；三氧化二铝7%-20%；氧化钙1%-20%；碳6%-16%；三氧化二铁1%-5%；硫2%-4%；氧化钾1%-3%；氧化镁1%-3%；改性黑硅石粉体中混有花岗岩将二氧化硅占比补充至60-70%。改性黑硅石粉体的成分是通过扫描X射线荧光光谱仪及C/S测试仪测得,先采用扫描X射线荧光光谱仪对黑硅石样品进行检测,得到各成分含量值,再计算得到花岗岩的用量,按照配比将黑硅石与花岗岩一同投入粉碎机中粉碎,再经环辊研磨机研磨得到改性黑硅石粉体。通过添加花岗岩将粉体中的二氧化硅含量控制达到60-70%之间,可以使改性热塑性树脂达到所需的稳定的增刚效果。(The invention discloses a kind of modified horn stone powders, by weight percentage, including following component composition: silica 60%-70%；Aluminum oxide 7%-20%；Calcium oxide 1%-20%；Carbon 6%-16%；Di-iron trioxide 1%-5%；Sulphur 2%-4%；Potassium oxide 1%-3%；Magnesia 1%-3%；Granite is mixed in modified horn stone powder, and silica accounting is supplemented to 60-70%.The ingredient of modified horn stone powder is measured by scanning Xray fluorescence spectrometer and C/S tester, first horn stone sample is detected using scanning Xray fluorescence spectrometer, obtain each component content value, the dosage of granite is calculated again, horn stone is put into pulverizer together with granite according to the proportion and is crushed, then grinds to obtain modified horn stone powder through ring-roll mill.The dioxide-containing silica control in powder is reached between 60-70% by addition granite, modified thermoplastic resin can be made to reach the required rigid effect of stable increasing.)

1. a kind of modified horn stone powder, which is characterized in that by weight percentage, including following component composition:

Silica 60-70%；

Aluminum oxide 7-20%；

Calcium oxide 1-20%；

Carbon 6-16%；

Di-iron trioxide 1-5%；

Sulphur 2-4%；

Potassium oxide 1-3%；

Magnesia 1-3%；

Granite is mixed in modified horn stone powder, and silica accounting is supplemented to 60-70%.

2. modified horn stone powder according to claim 1, which is characterized in that the ingredient of modified horn stone powder is to pass through Scanning Xray fluorescence spectrometer and C/S tester measure.

3. modified horn stone powder according to claim 1, which is characterized in that in the horn stone of addition granite before modified Dioxide-containing silica is only 40% ~ 60%.

4. modified horn stone powder according to claim 1, which is characterized in that the partial size of the modification horn stone powder Range is 800-1500 mesh.

5. modified horn stone powder according to claim 1, which is characterized in that the modification horn stone powder has piece Shape structure.

6. modified horn stone raw powder's production technology described in claim 1, which comprises the following steps: first use Scanning Xray fluorescence spectrometer and C/S tester detect horn stone sample, obtain each component content value, then calculate To the dosage of granite, will be crushed in horn stone and granite investment pulverizer according to the proportion, then grind to obtain modified horn stone Powder.

7. the application of modified horn stone powder described in claim 1, which is characterized in that as powder modifier for modified heat Plastic resin.

8. the application of modified horn stone powder according to claim 7, which is characterized in that the thermoplastic resin includes But be not limited to polypropylene, polyethylene, polyamide, polycarbonate etc..

9. the application of modified horn stone powder according to claim 7, which is characterized in that it is multiple to be used to prepare modified polypropene Condensation material, by weight, including following components:

60-100 parts of acrylic resin；

Modified 1-40 parts of horn stone powder.

10. the application of modified horn stone powder according to claim 7, which is characterized in that by modified horn stone powder system For at modified horn stone powder polypropylene modification master batch, by weight, including it is modified 100 parts of horn stone powder, polypropylene tree 1-25 parts of rouge.

Technical field

The present invention relates to new material technology fields, more particularly to a kind of modified horn stone powder and preparation method thereof and answer With.

Background technique

Since Talc Ore is increasingly exhausted, a kind of novel ore is needed to replace talcum.Horn stone is a kind of with special work The aleuritic texture carbonaceous layer stone of journey geological characteristics, rich in having silica, iron oxide and free carbon, in Guilin Area large area Distribution, preferably, grade is higher, natural ater for oxidation.Horn stone is that its molecule content of laminated structure and performance characteristic are similar to Talcum powder, and ore sheet, as ater, high temperature resistant, aluminum content is higher than other black talc mines.

Primary horn stone is crushed to after certain granularity through over mechanical processing can be used as filling out for plastics, rubber and coating Fill materials'use；But since the silica composition span that the horn stone of different mining site outputs is rich in is larger, ratio is inconsistent Cause to be difficult the large-scale directly use of abundant, effective progress.Titanium dioxide in the horn stone produced in most horn stone mines Silicone content is relatively low, less than 50%, it is found through experiment that, the rigid effect of increasing that will lead to modified thermoplastic resin in this way is poor and unstable.Cause This, the horn stone of low silica content is typically only capable to enough as the purposes for firing brick at this stage.

Summary of the invention

The object of the present invention is to provide a kind of modified horn stone powders, by crushing, adding certain proportion before grinding Granite so that the dioxide-containing silica of modified horn stone powder is up to 60%-70%, and stable content；By modified Powder have the more stable rigid effect of increasing.

The object of the present invention is to provide the preparation method of above-mentioned modified powder and applications.

The present invention is achieved by the following technical solutions:

A kind of modified horn stone powder, by weight percentage, including following component composition:

Silica 60-70%；

Aluminum oxide 7-20%；

Calcium oxide 1-20%；

Carbon 6-16%；

Di-iron trioxide 1-5%；

Sulphur 2-4%；

Potassium oxide 1-3%；

Magnesia 1-3%；

Granite is mixed in modified horn stone powder, and silica accounting is supplemented to 60-70%.

Above-mentioned each element ingredient is most important ingredient, may the also other elements impurity containing 0.1-0.5%, according to production The difference on ground would also vary from.

The ingredient of modified horn stone powder is measured by scanning Xray fluorescence spectrometer and C/S tester.

Adding dioxide-containing silica in the horn stone of granite before modified is only 40% ~ 60%

The particle size range of the modification horn stone powder is 800-1500 mesh (about 5-15um).

The modification horn stone powder has laminated structure.

The modification horn stone raw powder's production technology, comprising the following steps: first using scanning Xray fluorescence spectrometer And C/S tester detects horn stone sample, obtains each component content value, then the dosage of granite is calculated, according to Proportion will crush in horn stone and granite investment pulverizer, then grind to obtain modified horn stone powder.

By adding granite, during crushing with grinding, influenced by high temperature, a part of granite powder is rich Collection is brought in horn stone powder surface, the dioxide-containing silica of high concentration compared to inherently with high silicon dioxide content The more stable enhancing performance of horn stone powder.

The application of the modification horn stone powder is used for modified thermoplastic resin as powder modifier.

The thermoplastic resin includes but is not limited to polypropylene, polyethylene, polyamide, polycarbonate etc..

It is an object of the present invention to replace talcum powder using modified horn stone powder, talcum powder can be used for polypropylene, gather In the thermoplastic resins such as ethylene, polyamide, polycarbonate, experiment proves that, modification horn stone powder used in the present invention can also Increase just for above-mentioned thermoplastic resin.In the specific embodiment of the invention, the increasing mainly for acrylic resin has just changed Property effect innovative point of the invention (contained by adding a certain amount of granite to adjust the silica in horn stone powder Amount makes to increase rigid effect more preferable and more stable) it is illustrated.

In crushing and process of lapping, thus it is speculated that be since localized hyperthermia caused by rubbing produces powder granule surface carefully Micro- metamorphosis (after grinding, the granite attachment of sub-fraction addition is wrapped in horn stone powder granule surface), and The granite powder of powder weight nearly half is accounted for by the horn stone powder after composite modified, compared to pure granite, for Increase rigid effect to be also guaranteed.However if a large amount of water is added during the grinding process to cool down, modified powder particle Configuration of surface will not change the simple blend of namely two kinds powders, hardly have modified effect.

But can also have the defects that it is certain because granite specific gravity is larger, it is therefore desirable to control the addition of granite Amount, or use require in lower resin applications for low-density.

Also paid during modified test to ping addition high-purity quartz (silica) to be modified, but may be Due to its extreme hardness, condition is stablized, and the difference in hardness of quartz and two kinds of mineral of horn stone is big, for low two after addition grinding Modified effect is also almost not achieved in the horn stone of silica content.

The application of modified horn stone powder, is used to prepare modified polypropylene composite material, by weight, including with the following group Point:

60-100 parts of acrylic resin；

Modified 1-40 parts of horn stone powder.

The powder-modified acrylic resin of modified horn stone, is helped wherein coupling agent, antioxidant, lubricant etc. can also be added Agent.A certain amount of glass, which can also be added, to be enhanced.

The preparation method of modified polypropylene composite material can be the modified horn stone powder of directly addition and be prepared, can also It is prepared with the high filled polypropylene master batch for being mixed with modified horn stone powder by addition.

Modified horn stone powder is prepared into modified horn stone powder highly filled poly- third by the application of modified horn stone powder Alkene modified master batch, by weight, including modified 100 parts of horn stone powder, 1-25 parts of acrylic resin.

Powder in process because partial size is small, it is easy to cause smoke contamination, it is raw to the producer of not particular device Production brings certain difficulty.Also, a large amount of tiny powder are easy agglomerate in screw rod, and dispersion is uneven, or even have and resin The incompatible problem of matrix, interface binding power weakness to increase rigid effect and can not show.It will modified horn stone powder preparation At master batch, blending when being readily transported and produce in this way will not generate flue dust.

In master batch, a certain amount of coupling agent, lubricant, antioxidant, eliminating smell agent, toughener etc. can also be added.

The modified method for increasing rigid acrylic resin, concrete technology ginseng are referred to for the application of other thermoplastic resins The adjustment of number, formula is changed with actual nature, performance objective.

The present invention has the advantages that

The present invention is to be carried out by adding common granite to be modified to horn stone by compounding a certain amount of granite Mixed grinding achievees the purpose that adjust silica in whole powder and stablizes ratio (60% ~ 70%) to certain mesh number.This kind changes Horn stone powder after property is due to the relatively high and stable increasing that can achieve required thermoplastic resin of the proportional components of silica Rigid effect.

Highly filled modified horn stone powder is prepared into functional form master batch, for general by mixed carrier acrylic resin Lead to black product or the product less harsh to blackness requirement, the addition of carbon black Masterbatch can be saved, saves carbon black Color/dyeing cost increases the British Standard, Automobile Series of the resin such as PP system of rigid demand in product of rubber and plastic, TGXG product, black Components, the blowdown drainpipe (ripple tubing products) of PE system and other blacking series etc. can be answered on a large scale With.

Specific embodiment

Below with embodiment come further the present invention will be described, still, following embodiment is not to the scope of the present invention It is limited.

The raw materials used in the present invention is as follows:

Horn stone A: silica 42%；Calcium oxide 18%；Aluminum oxide 14%；Di-iron trioxide 3%；Potassium oxide 2%；Magnesia 1%；Carbon 14%；Sulphur 6%；

Horn stone powder B: silica 62%；Calcium oxide 7%；Aluminum oxide 16%；Di-iron trioxide 2%；Potassium oxide 2%；Oxidation Magnesium 1%；Carbon 8%；Sulphur 2%；Partial size: 1250 mesh (about 10um)；

Horn stone powder C: silica 42%；Calcium oxide 18%；Aluminum oxide 14%；Di-iron trioxide 3%；Potassium oxide 2%；Oxygen Change magnesium 1%；Carbon 14%；Sulphur 6%；Partial size: 1250 mesh (about 10um).

Above-mentioned each component content is approximation, it is possible to which, also containing other few substances, these substances may account for 0.1-0.5% or so is not listed.

Talcum powder: partial size: 1250 mesh (about 10um)；

Granite: dioxide-containing silica 75%；

Polypropylene: PP PDI078；

POE:POE LC565；

Antioxidant: irgasfos 168；

Lubricant: TMP-6.

The preparation method of modified horn stone powders A: according to each component content value of horn stone A, then granite is calculated Dosage (horn stone A: weight ratio=4:6 of granite powder, adjusted dioxide-containing silica is about 62%), according to the proportion Granularity≤20mm material is obtained by crushing in horn stone and granite investment pulverizer, then is transported in ring roll flour mill and carries out Grinding obtains modified horn stone powder A, can reach partial size: 1250 mesh (10um) by the product fineness obtained after powder selection device.

The preparation method of the powder filled polypropylene modification master batch (hereinafter referred to as master batch) of modified horn stone: according to the proportion will Powder (modified horn stone powder A or horn stone powder B or horn stone powder C), polypropylene, toughener, other auxiliary material (antioxygens Agent, lubricant, eliminating smell agent etc. can also be not added) investment 110L adding pressure type mixer in be sufficiently mixed, then pass through again 150 single screw extrusion machine and the hot-cut pelletizers of air-cooled die-surface obtain the master batch of 80% high filling proportion.

Talcum powder does not need to carry out such as modification of the invention, and the preparation method of talcum powder master batch refers to the above method.

The preparation method of modified polypropene packing material: according to the proportion, polypropylene, master batch, antioxidant, lubricant are added It is uniformly mixed in high speed mixer, then puts into extruding pelletization in double screw extruder, obtained modified polypropene packing material and (squeeze out Machine barrel temperature: one section 210 DEG C, two sections 215 DEG C, three sections 210 DEG C；Screw slenderness ratio is 25:1；Screw speed is 120- 1600r/min).

Properties test method:

(1) it melt flow rate (MFR): is executed referring to ISO1133 standard, 230 DEG C, 2.16Kg.

(2) it tensile strength: is executed referring to 527 standard of ISO.

(3) it bending strength: is executed referring to ISO178 standard.

(4) it heat distortion temperature: is executed referring to ISO75 standard.

Table 1: formulation weight part of master batch

	Modified master batch A	Mother particle B	Master batch C
				Polypropylene	20	20	20
Modified horn stone powder A	80	0	0
				Horn stone powder B	0	80	0
Horn stone powder C	0	0	80

Table 2: the formula (parts by weight) of embodiment and comparative example PP composite material