CN102701623A - Spraying vibration pre-processing method of aggregate of resin-mineral composite material and application in preparation of composite material - Google Patents
Spraying vibration pre-processing method of aggregate of resin-mineral composite material and application in preparation of composite material Download PDFInfo
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- CN102701623A CN102701623A CN2012102232396A CN201210223239A CN102701623A CN 102701623 A CN102701623 A CN 102701623A CN 2012102232396 A CN2012102232396 A CN 2012102232396A CN 201210223239 A CN201210223239 A CN 201210223239A CN 102701623 A CN102701623 A CN 102701623A
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Abstract
The invention relates to a spraying vibration pre-processing method of aggregate of resin-mineral composite material and application in preparation of the composite material. The method comprises the steps of cleaning, drying and screening the aggregate in classes; respectively carrying out vibration infiltration treatment on each class of aggregate, namely spraying diluted binder when vibrating the aggregate, and drying the aggregate at constant temperature after the surface of the aggregate is fully infiltrated; uniformly agitating and mixing the pre-processed aggregate and a resin system, casting into a mould and fixing on a vibrating bench to vibrate and compact, conserving and moulding. Compared with common resin-mineral composite material, with the adoption of the obtained resin-mineral composite material, the diluted binder for pre-processing is easy to infiltrate defects such as microcracks, concave pits and the like on the surface of the aggregate, and to fill, bridge and repair the defects such as the microcracks, the concave pits and the like on the surface of the aggregate; an effective strengthened layer is formed on the surface of the aggregate, and the compressive strength of the composite material is improved by 5-10% compared with that of the common resin-mineral composite material.
Description
Technical field:
The present invention relates to a kind of spray vibration pretreatment process and the application in Composite Preparation of resin mineral composite aggregate, belong to technical field of composite materials.
Background technology:
As the key foundation part of precision machine tool, the problems such as vibration that bed piece, column, anchor clamps etc. produce in the course of processing can directly influence the complete machine performance and the working accuracy of lathe.At present, most of mechanical basic part material is main with cast iron or welded steel structure, and the energy that its smelting process consumption is a large amount of increases carbon emission and environmental pollution.In recent years, industrially developed country such as Germany, Switzerland are gradually adopting the resin mineral composite to replace the basic parts such as lathe bed, column, anchor clamps of equipment such as traditional cast iron manufacturing high speed, precision finishing machine.The resin mineral composite be a kind of be aggregate with the lithotome particle; Make the matrix material of sticker with organic resin; Have good damping vibration attenuation performance, low thermal coefficient of expansion, highly corrosion resistant performance, and mechanical property preferably, do not need sintering in its production process; Pollution-free, less energy-consumption.Because being lithotome, the used aggregate of resin mineral composite forms through crushing and screening; Its surface exists defectives such as fine crack and pit; Prepare in the process at the resin mineral composite; Comparatively the heavy-gravity resin glue can't soak into and be penetrated into defective inside such as crackle fully, causes the resin mineral composite to be prone to produce the phenomenon of passing the particles of aggregates fracture, influences the whole mechanical property of resin mineral composite.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art; A kind of spray vibration pretreatment process and the application in Composite Preparation of resin mineral composite aggregate are provided; Sticker through dilution to defectives such as aggregate surface tiny crack and pit fill, bridge joint and repairing; Form effective strengthening layer at aggregate surface, improve the interface performance of aggregate and sticker, improve the physical and mechanical properties of resin mineral composite.
The present invention realizes through following technical scheme:
The spray vibration pretreatment process of resin mineral composite aggregate cleans aggregate, dry and sieve classification; Aggregates at different levels are vibrated infiltration respectively handle, promptly the sticker of spray dilution in the vibration aggregate is treated to be carried out constant temperature drying after the aggregate surface quilt fully soaks into.
Described aggregate vibrational frequency is 40 ~ 120Hz, and amplitude range is 0.2 ~ 0.5mm.
The sticker of described dilution is pressed row weight part ratio raw materials mix and is formed: 60 ~ 70 parts of liquid synthetic resins, 15 ~ 20 parts in solidifying agent, 15 ~ 20 parts of thinners.
Described liquid synthetic resin is epoxy resin or unsaturated polyester resin, and described solidifying agent is a quadrol, and described thinner is an acetone.
Above-mentioned constant temperature drying temperature is 20 ~ 40 ℃, and drying time is 6 ~ 24 hours.
A kind of preparation method of resin mineral composite: aggregate is carried out pre-treatment as stated above; Taking by weighing liquid synthetic resin, solidifying agent, thinner adds agitation vat and is stirred into resin system; Take by weighing through pretreated aggregate by the grating requirement, mix the back and add agitation vat, part by weight is 85 ~ 95 parts in pretreated aggregate, 3 ~ 8 parts of liquid synthetic resins, 1 ~ 4 part in solidifying agent, 1 ~ 3 part of thinner; Treat to be cast in the mould after aggregate and resin system mix and be fixed to carry out vibratory compaction on the shaking table; The maintenance moulding.
The preferred granite aggregate of aggregate is divided into 3 ranks by size and joins, and pretreated aggregate weight part ratios at different levels are: 0.1mm ~ 2.5mm:28 ~ 40 part, 2.5mm ~ 7.5mm:25 ~ 35 part, 7.5mm ~ 15mm:25 ~ 40 part.
Described liquid synthetic resin also is epoxy resin or unsaturated polyester resin, and described solidifying agent is a quadrol, and described thinner is an acetone.
Described maintenance is under the room temperature maintenance 4-15 days.
The resin mineral composite that obtains improves 5% ~ 10% than common without pretreated resin mineral composite ultimate compression strength.
The resin mineral composite prepares used aggregate and is formed through attrition crushing and screening by lithotome, and its surface arrangement defectives such as fine crack, pit.In order to guarantee the adhesive property of resin glue; The consumption of used thinner is less in the material prepn process; Cause resin glue viscosity higher and can't completely filled aggregate surface tiny crack, pit etc., after matrix material was stressed, crackle may be to the particles of aggregates internal extended; Cause macrocrack to change the expansion of passing particles of aggregates into, performances such as the ultimate compression strength of reduction resin mineral composite, bending strength, fracture toughness property by expanding along particles of aggregates.
The present invention adopts resin mineral composite aggregate spray vibration preconditioning technique; Compare with the ordinary resin mineral composite; The used dilution sticker of pre-treatment is easy to soak into defectives such as fine crack and the pit of aggregate surface; To defectives such as aggregate surface tiny crack and pit fill, bridge joint and repairing, form effective strengthening layer at aggregate surface.Aggregate spray vibration preconditioning technique can effectively reduce along the particles of aggregates fracture and pass the phenomenon of rupture of particles of aggregates, improves the physical and mechanical properties of resin mineral composite.According to the experiment test result, have the better physical mechanical property through the pretreated resin mineral composite of aggregate spray vibration, improve 5% ~ 10% than ordinary resin mineral composite ultimate compression strength, can be used as good mechanical basic part material.
Embodiment
Further specify below in conjunction with embodiment.
Embodiment 1
Aggregate: natural granite particle 5000g, wherein:
0.1mm ~ 2.5mm:1800g accounts for 36wt%
2.5mm ~ 7.5mm:1600g accounts for 32wt%
7.5mm ~ 15mm:1600g accounts for 32wt%.
Aggregate is cleaned, dries and sieve classification; Aggregates at different levels are vibrated infiltration respectively handle, the sticker that promptly spray dilutes in the vibration aggregate, the sticker of described dilution is pressed row weight part ratio raw materials mix and is formed: 60 parts of epoxy resin, 20 parts of quadrols, 20 parts in acetone.Treat that aggregate surface carries out 40 ℃ of constant temperature dryings after fully soaking into.
Take by weighing liquid synthetic resin, solidifying agent and thinner and add agitation vat and be stirred into resin system, epoxy resin 300g wherein, curing agent ethylene diamine 150g, thinner acetone 50g; Take by weighing pretreated aggregate by the grating requirement, mix the back and add agitation vat; Treat to be cast in the mould after aggregate and resin system mix and be fixed to carry out vibratory compaction on the shaking table; The maintenance moulding.
Through the resin mineral composite that above prescription and technology obtain, its ultimate compression strength is 132.55MPa.
Embodiment 2
Aggregate: natural granite particle 5000g, wherein:
0.1mm ~ 2.5mm:1800g accounts for 36wt%
2.5mm ~ 7.5mm:1600g accounts for 32wt%
7.5mm ~ 15mm:1600g accounts for 32wt%.
Aggregate is cleaned, dries and sieve classification; Aggregates at different levels are vibrated infiltration respectively handle, the sticker that promptly spray dilutes in the vibration aggregate, the sticker of described dilution is pressed row weight part ratio raw materials mix and is formed: 70 parts of epoxy resin, 15 parts of quadrols, 15 parts in acetone.Treat that aggregate surface carries out 30 ℃ of constant temperature dryings after fully soaking into.
Take by weighing liquid synthetic resin, solidifying agent and thinner and add agitation vat and be stirred into resin system, epoxy resin 360g wherein, curing agent ethylene diamine 93g, thinner acetone 47g; Take by weighing through the pretreated aggregate of spray vibration by the grating requirement, mix the back and add agitation vat; Treat to be cast in the mould after aggregate and resin system mix and be fixed to carry out vibratory compaction on the shaking table; The maintenance moulding.
Through the resin mineral composite that above prescription and technology obtain, its ultimate compression strength is 130.48MPa.
Comparative Examples
Aggregate: natural granite particle 5000g, wherein:
0.1mm ~ 2.5mm:1800g accounts for 36wt%
2.5mm ~ 7.5mm:1600g accounts for 32wt%
7.5mm ~ 15mm:1600g accounts for 32wt%
A) aggregate is cleaned, dries and screening, do not do pre-treatment; B) take by weighing liquid synthetic resin, solidifying agent and thinner adding agitation vat and be stirred into resin system, epoxy resin 300g, curing agent ethylene diamine 150g, thinner acetone 50g; C) take by weighing aggregate by the grating requirement, mix the back and add agitation vat; D) treat to be cast in the mould after aggregate and resin system mix and be fixed to and carry out vibratory compaction on the shaking table; E) maintenance moulding.
Through the resin mineral composite that above prescription and technology obtain, its ultimate compression strength is 119.87MPa.
Claims (8)
1. the spray of resin mineral composite aggregate vibration pretreatment process is characterized in that, aggregate is cleaned, dries and sieve classification; Aggregates at different levels are vibrated infiltration respectively handle, promptly the sticker of spray dilution in the vibration aggregate is treated to be carried out constant temperature drying after the aggregate surface quilt fully soaks into.
2. the spray vibration pretreatment process of resin mineral composite aggregate according to claim 1; It is characterized in that; The sticker of described dilution is pressed row weight part ratio raw materials mix and is formed: 60 ~ 70 parts of liquid synthetic resins, 15 ~ 20 parts in solidifying agent, 15 ~ 20 parts of thinners.
3. the spray vibration pretreatment process of resin mineral composite aggregate according to claim 2 is characterized in that described liquid synthetic resin is epoxy resin or unsaturated polyester resin, and described solidifying agent is a quadrol, and described thinner is an acetone.
4. the spray vibration pretreatment process of resin mineral composite aggregate according to claim 1 is characterized in that said constant temperature drying temperature is 20 ~ 40 ℃, and drying time is 6 ~ 24 hours.
5. the preparation method of a resin mineral composite is characterized in that, comprises that step is following: aggregate is carried out pre-treatment by the said method of claim 1; Taking by weighing liquid synthetic resin, solidifying agent, thinner adds agitation vat and is stirred into resin system; Take by weighing through pretreated aggregate by the grating requirement, mix the back and add agitation vat, part by weight is 85 ~ 95 parts in pretreated aggregate, 3 ~ 8 parts of liquid synthetic resins, 1 ~ 4 part in solidifying agent, 1 ~ 3 part of thinner; Treat to be cast in the mould after aggregate and resin system mix and be fixed to carry out vibratory compaction on the shaking table; The maintenance moulding.
6. the preparation method of resin mineral composite according to claim 5; It is characterized in that; Aggregate selects granite aggregate, is divided into 3 ranks by size and joins, and pretreated aggregate weight part ratios at different levels are: 0.1mm ~ 2.5mm:28 ~ 40 part; 2.5mm ~ 7.5mm:25 ~ 35 part, 7.5mm ~ 15mm:25 ~ 40 part.
7. the preparation method of resin mineral composite according to claim 5 is characterized in that, described liquid synthetic resin also is epoxy resin or unsaturated polyester resin, and described solidifying agent is a quadrol, and described thinner is an acetone.
8. the preparation method of resin mineral composite according to claim 5 is characterized in that, described maintenance is under the room temperature maintenance 4-15 days.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107216064A (en) * | 2017-06-12 | 2017-09-29 | 中原工学院 | A kind of granolith composite and preparation method thereof |
CN112358248A (en) * | 2020-11-25 | 2021-02-12 | 北京城建九秋实混凝土有限公司 | Recycled aggregate concrete and preparation method thereof |
CN114290584A (en) * | 2021-12-28 | 2022-04-08 | 常州高鼎新材料科技有限公司 | Preparation process method of non-metallic mineral casting |
Citations (2)
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CN101531808A (en) * | 2009-04-17 | 2009-09-16 | 山东大学 | Glass fiber and carbon fiber mixed reinforced polyester mineral composite material and preparation method thereof |
CN102452817A (en) * | 2010-10-21 | 2012-05-16 | 北京仁创科技集团有限公司 | Silica sand composition, and formed body and preparation method thereof |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101531808A (en) * | 2009-04-17 | 2009-09-16 | 山东大学 | Glass fiber and carbon fiber mixed reinforced polyester mineral composite material and preparation method thereof |
CN102452817A (en) * | 2010-10-21 | 2012-05-16 | 北京仁创科技集团有限公司 | Silica sand composition, and formed body and preparation method thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107216064A (en) * | 2017-06-12 | 2017-09-29 | 中原工学院 | A kind of granolith composite and preparation method thereof |
CN107216064B (en) * | 2017-06-12 | 2019-09-27 | 中原工学院 | A kind of granolith composite material and preparation method |
CN112358248A (en) * | 2020-11-25 | 2021-02-12 | 北京城建九秋实混凝土有限公司 | Recycled aggregate concrete and preparation method thereof |
CN114290584A (en) * | 2021-12-28 | 2022-04-08 | 常州高鼎新材料科技有限公司 | Preparation process method of non-metallic mineral casting |
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