CN107216064B - A kind of granolith composite material and preparation method - Google Patents
A kind of granolith composite material and preparation method Download PDFInfo
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- CN107216064B CN107216064B CN201710436435.4A CN201710436435A CN107216064B CN 107216064 B CN107216064 B CN 107216064B CN 201710436435 A CN201710436435 A CN 201710436435A CN 107216064 B CN107216064 B CN 107216064B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/20—Polyamides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of granolith composite material and preparation methods, by aggregate cleaning, broken, screening, drying, it requires to weigh in the prior binder by heating of coarse aggregate addition of the partial size greater than 2.36mm according to gradation and be pre-processed, weigh resin, curing agent, diluent again according to the weight ratio, and it mixes and stirs evenly, aggregate mixture is added, it is stirred evenly with forced stirrer, and it is poured into the mold for being coated with release agent, mold, which is fixed on shake table, carries out vibration moulding, room temperature curing, maintenance, finished product.Obtained granolith composite material is compared with the granolith composite material routinely prepared, binder after coarse aggregate is heated immerses, aggregate surface slight crack and defect can be filled up, be repaired, aggregate and adhesive system bonding are stronger, and the granolith composite material compression strength than routinely preparing improves 10% ~ 15%.
Description
Technical field
The invention belongs to technical field of composite materials, and in particular to a kind of granolith composite material and its preparation side
Method.
Background technique
With China's aerospace, astronomical observation, laser fusion, army's industry, modern medical service, automobile manufacture etc., country is high
The development and demand of new technical field force and propose increasingly higher demands to machine tool.For the hair of these high-new industries
Exhibition needs, and high-precision, intelligence, high efficiency, green circulatory have become the development trend of advanced manufacturing set technology.In order to reduce
Process time improves processing efficiency, must increase cutting output, improve cutting speed, but can also cause the vibration of lathe, mistake
Big vibration is and its unfavorable that especially for Ultra-precision Turning, or even will appear tipping phenomenon, serious shadow to machine tooling
Ring the normal work and working life of lathe.Machine vibration will have a direct impact on the shape contour precision and surface roughness of processing
And accurate to dimension, and the noise generated also will affect the working environment of operator.Lathe bed is as lathe key foundation
One of part, other than the weight for undertaking other assembly of elements, main function is exactly vibration-damping function.
In order to lower the vibration of lathe, improving lathe bed performance is usually improved by following two mode: (1) passing through optimization
Machine tool structure；(2) novel performance excellent material is used.The manufacture of traditional lathe bed mostly uses cast iron materials, why relatively mostly uses
Cast iron materials, are primarily due to that cast iron materials compression strength is high, thermal expansion coefficient is small, dimensionally stable, good mobility, Yi Jia
Work, processing technology are mature, but the damping characteristic of material has reached the limit, can not eliminate the vibration generated in mechanical processing process
It is dynamic, influence machining accuracy and surface roughness, and there is also other shortcomings for cast iron materials: such as manufacturing process is complicated, manufacture at
This height, poor corrosion resistance, energy consumption consumption are big, seriously polluted, and process-cycle length, residual thermal stress cannot be completely eliminated, thermostabilization
Difference, absorbing is poor, these disadvantage significant departures Green Development trend.Since there are crackles for natural granite interior surface itself
And stomata, by mining equiment cutting, after break process, aggregate surface can inevitably generate micro-crack and defect, these crackles and
During stirring at normal temperature, binder is difficult to be immersed in microcrack defect, and aggregate and binder bonding are insufficient, influences material
Compression strength.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of granolith composite material and its preparation side
Coarse aggregate is immersed and is pre-processed by the binder of heating water bath, makes the mobility of binder more by adhesive heating by method
The good microcrack and defect for being easy to fill up, repair aggregate surface improves material so that aggregate and binder bonding are stronger
Compression strength can satisfy the performance requirement of ultraprecise lathe bed.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of granolith composite material, it is made of the raw material of following weight percentage: aggregate 89.9%, resin
5.4%, curing agent 3.6% and diluent 1.1%.
The aggregate is Jinan blueness granite aggregate, is divided into 5 grades, the weight proportion of 5 grades according to size
It is as follows: partial size < 0.18mm:10% ~ 15%, partial size 0.18mm ~ 2.36mm:10% ~ 15%, partial size 2.36mm ~ 5mm:35% ~ 40%, grain
Diameter 5mm ~ 10mm:20% ~ 25%, partial size 10mm ~ 15mm: 15%.
The resin is bisphenol A type epoxy resin E44, and curing agent is 650 type polyamides, and diluent is acetone.
The preparation method of the granolith composite material, steps are as follows:
(1) by aggregate cleaning, broken, screening, drying, coarse aggregate and fine aggregate are obtained, wherein coarse aggregate is greater than for partial size
The aggregate of 2.36mm, fine aggregate are the aggregate that partial size is less than 2.36mm；
(2) resin, curing agent and diluent are weighed according to the weight ratio, and mixing stirs evenly to obtain bonding agent；
(3) aggregate pre-processes；Step (2) is obtained into bonding agent and carries out heating water bath, then by the coarse aggregate in step (1)
It is added in the binder by heating water bath, stirring, to be bonded dose is completely immersed in aggregate surface defect, takes out aggregate, and screening is permanent
Warm drying and processing；
(4) binder is prepared again according to the method for step (2), by the pretreated coarse aggregate of step (3) and step (1)
Obtained fine aggregate is weighed according to the proportion, is mixed, and is mixed evenly with the heavy freshly prepd binder, be injected into be coated with it is de-
In the mold of mould agent, the fixed vibration moulding on a vibration table of mold；
(5) room temperature curing, maintenance, finished product.
Binder temperature in the step (3) after heating water bath is 40 ~ 45 DEG C, mixing time 20min.
Temperature when constant temperature drying in the step (3) is handled is 20 ~ 40 DEG C, and drying time is 8 ~ 12h.
The vibration frequency of shake table is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration in the step (4)
30min。
For 24 hours, room temperature conserves 10 days for room temperature curing in the step (5).
Beneficial effects of the present invention: granolith composite material preparation aggregate used be natural stone by cutting,
It is crushed, sieves and obtain, there is crackle and stomata in itself inside granite face, after mining equiment cutting, break process, bone
Material surface can inevitably generate micro-crack and defect, and during stirring at normal temperature, binder difficulty is soaked under room temperature for these crackles and defect
Enter into microcrack, aggregate and binder bonding are insufficient, influence compression strength, bending strength, shock resistance of material etc..
The present invention immerses aggregate preprocess method using granolith composite material heating water bath binder, with conventional side
Method preparation granolith composite material, binder after heating water bath, be more easier immerse aggregate surface hallrcuts and
Defect is filled up aggregate surface, is repaired, so that aggregate and binder bonding are stronger, improves the compression strength of material.
Granolith composite material aggregate heating water bath stirring preconditioning technique can be reduced because aggregate surface hallrcuts and defect are made
At the low phenomenon of compression strength, improve the compression strength of granolith composite material.It is learnt by experiment, using aggregate water
The granolith composite material for bathing adhesive heating stirring preconditioning technique preparation, than the granolith of conventional method preparation
Composite material compression strength improves 10%~15%.
Specific embodiment
Combined with specific embodiments below, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this
The person skilled in the art of the range of invention and is not intended to limit the present invention, the field can make one according to the content of foregoing invention
A little nonessential modifications and adaptations.
Embodiment 1
The preparation method of the granolith composite material of the present embodiment, steps are as follows:
(1) by aggregate cleaning, broken, screening, drying, coarse aggregate and fine aggregate are obtained, wherein coarse aggregate is greater than for partial size
The aggregate of 2.36mm, fine aggregate are the aggregate that partial size is less than 2.36mm；Aggregate selects " Jinan is green " natural granite 5000g,
In:
Partial size < 0.18mm, 500g accounts for aggregate total amount 10%；
Partial size 0.18mm ~ 2.36mm, 750g account for aggregate total amount 15%；
Partial size 2.36mm ~ 5mm, 1750g account for aggregate total amount 35%；
Partial size 5mm ~ 10mm, 1250g account for aggregate total amount 25%；
Partial size 10mm ~ 15mm, 750g account for aggregate total amount 15%；
(2) bisphenol A type epoxy resin E44 300g, 650 type polyamide 200g and acetone are weighed according to the weight ratio
60g, mixing stir evenly to obtain bonding agent；
(3) aggregate pre-processes；By step (2) obtain bonding agent carry out heating water bath to 40 DEG C, then will be in step (1)
Coarse aggregate is added in the binder by heating water bath, stirs 20min, and to be bonded dose is completely immersed in aggregate surface defect, takes out
Aggregate, screening, dries 12h under conditions of 20 DEG C；
(4) binder is prepared again according to the method for step (2), by the pretreated coarse aggregate of step (3) and step (1)
Obtained fine aggregate is weighed according to the proportion, is mixed, and forced stirrer stirring is injected after mixing with the heavy freshly prepd binder
5min is injected into the mold for being coated with release agent after mixing evenly, the fixed vibration moulding on a vibration table of mold, shake table
Vibration frequency is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration 30min；
(5) room temperature curing for 24 hours, room temperature conserve 10 days, finished product.
Granolith composite material is obtained by above-mentioned preparation method and aggregate proportion, compression strength is
125.5MPa。
Embodiment 2
The preparation method of the granolith composite material of the present embodiment, steps are as follows:
(1) by aggregate cleaning, broken, screening, drying, coarse aggregate and fine aggregate are obtained, wherein coarse aggregate is greater than for partial size
The aggregate of 2.36mm, fine aggregate are the aggregate that partial size is less than 2.36mm；Aggregate selects " Jinan is green " natural granite 5000g,
In:
Partial size < 0.18mm, 500g accounts for aggregate total amount 10%；
Partial size 0.18mm ~ 2.36mm, 750g account for aggregate total amount 15%；
Partial size 2.36mm ~ 5mm, 1750g account for aggregate total amount 35%；
Partial size 5mm ~ 10mm, 1250g account for aggregate total amount 25%；
Partial size 10mm ~ 15mm, 750g account for aggregate total amount 15%；
(2) bisphenol A type epoxy resin E44 300g, 650 type polyamide 200g and acetone are weighed according to the weight ratio
60g, mixing stir evenly to obtain bonding agent；
(3) aggregate pre-processes；By step (2) obtain bonding agent carry out heating water bath to 45 DEG C, then will be in step (1)
Coarse aggregate is added in the binder by heating water bath, stirs 20min, and to be bonded dose is completely immersed in aggregate surface defect, takes out
Aggregate, screening, dries 8h under conditions of 40 DEG C；
(4) binder is prepared again according to the method for step (2), by the pretreated coarse aggregate of step (3) and step (1)
Obtained fine aggregate is weighed according to the proportion, is mixed, and forced stirrer stirring is injected after mixing with the heavy freshly prepd binder
5min is injected into the mold for being coated with release agent after mixing evenly, the fixed vibration moulding on a vibration table of mold, shake table
Vibration frequency is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration 30min；
(5) room temperature curing for 24 hours, room temperature conserve 10 days, finished product.
Granolith composite material is obtained by above-mentioned preparation method and aggregate proportion, compression strength is
116.7MPa。
Embodiment 3
The preparation method of the granolith composite material of the present embodiment, steps are as follows:
(1) by aggregate cleaning, broken, screening, drying, coarse aggregate and fine aggregate are obtained, wherein coarse aggregate is greater than for partial size
The aggregate of 2.36mm, fine aggregate are the aggregate that partial size is less than 2.36mm；Aggregate selects " Jinan is green " natural granite 5000g,
In:
Partial size < 0.18mm, 750g accounts for aggregate total amount 15%；
Partial size 0.18mm ~ 2.36mm, 500g account for aggregate total amount 10%；
Partial size 2.36mm ~ 5mm, 2000g account for aggregate total amount 40%；
Partial size 5mm ~ 10mm, 1000g account for aggregate total amount 20%；
Partial size 10mm ~ 15mm, 750g account for aggregate total amount 15%；
(2) bisphenol A type epoxy resin E44 300g, 650 type polyamide 200g and acetone are weighed according to the weight ratio
60g, mixing stir evenly to obtain bonding agent；
(3) aggregate pre-processes；By step (2) obtain bonding agent carry out heating water bath to 42 DEG C, then will be in step (1)
Coarse aggregate is added in the binder by heating water bath, stirs 20min, and to be bonded dose is completely immersed in aggregate surface defect, takes out
Aggregate, screening, dries 10h under conditions of 30 DEG C；
(4) binder is prepared again according to the method for step (2), by the pretreated coarse aggregate of step (3) and step (1)
Obtained fine aggregate is weighed according to the proportion, is mixed, and forced stirrer stirring is injected after mixing with the heavy freshly prepd binder
5min is injected into the mold for being coated with release agent after mixing evenly, the fixed vibration moulding on a vibration table of mold, shake table
Vibration frequency is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration 30min；
(5) room temperature curing for 24 hours, room temperature conserve 10 days, finished product.
Granolith composite material is obtained by above-mentioned preparation method and aggregate proportion, compression strength is
120.8MPa。
Comparative example
Aggregate: natural Jinan blueness granite 5000g, all partial size aggregates do not pre-process, in which:
Partial size < 0.18mm, 500g accounts for aggregate total amount 10%；
Partial size 0.18mm ~ 2.36mm, 750g account for aggregate total amount 15%
Partial size 2.36mm ~ 5mm, 1750g account for aggregate total amount 35%；
Partial size 5mm ~ 10mm, 1250 g account for aggregate total amount 25%；
Partial size 10mm ~ 15mm, 750g account for aggregate total amount 15%；
By aggregate cleaning, broken, screening, drying.
Bisphenol A type epoxy resin 300g is weighed, 650 type polyamide 200g, acetone 60g, mixing stirs evenly, according to gradation
It is required that weighing aggregate, mixing is stirred evenly, and aggregate mixture and binder mixtures mixed injection forced stirrer stir evenly, stirring
Time 5min；Mixture injection after stirring evenly has been coated in the mold of release agent, and mold is fixed on a vibration table, vibrates close
Real, vibration frequency is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration 30min；For 24 hours, room temperature conserves 10 for room temperature curing
It, finished product.
Granolith composite material is obtained by above-mentioned preparation method and aggregate proportion, compression strength is
100.2MPa。
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
1. a kind of preparation method of granolith composite material, it is characterised in that steps are as follows:
(1) by aggregate cleaning, broken, screening, drying, coarse aggregate and fine aggregate are obtained, wherein coarse aggregate is greater than for partial size
The aggregate of 2.36mm, fine aggregate are the aggregate that partial size is less than 2.36mm；
(2) resin, curing agent and diluent are weighed according to the weight ratio, and mixing stirs evenly to obtain binder；
(3) aggregate pre-processes；Step (2) is obtained into binder and carries out heating water bath, then the coarse aggregate in step (1) is added
By in the binder of heating water bath, stirring, to be bonded dose is completely immersed in aggregate surface defect, aggregate, screening are taken out, constant temperature dries
Dry-cure；
(4) binder is prepared again according to the method for step (2), the pretreated coarse aggregate of step (3) and step (1) are obtained
Fine aggregate weigh according to the proportion, mix, and be mixed evenly with the heavy freshly prepd binder, be injected into and be coated with release agent
Mold in, the fixed vibration moulding on a vibration table of mold；
(5) room temperature curing, maintenance, finished product；
Binder temperature in the step (3) after heating water bath is 40 ~ 45 DEG C, mixing time 20min；
The granolith composite material, is made of the raw material of following weight percentage: aggregate 89.9%, is consolidated resin 5.4%
Agent 3.6% and diluent 1.1%；
The aggregate is Jinan blueness granite aggregate, is divided into 5 grades according to size, the weight proportion of 5 grades is as follows:
Partial size < 0.18mm:10% ~ 15%, partial size 0.18mm ~ 2.36mm:10% ~ 15%, partial size 2.36mm ~ 5mm:35% ~ 40%, partial size 5mm ~
10mm:20% ~ 25%, partial size 10mm ~ 15mm: 15%；
The resin is bisphenol A type epoxy resin E44, and curing agent is 650 type polyamides, and diluent is acetone.
2. the preparation method of granolith composite material according to claim 1, it is characterised in that: the step (3)
In constant temperature drying processing when temperature be 20 ~ 40 DEG C, drying time be 8 ~ 12h.
3. the preparation method of granolith composite material according to claim 1, it is characterised in that: the step (4)
The vibration frequency of middle shake table is 100 ~ 125Hz, 0.14 ~ 0.25mm of amplitude, time of vibration 30min.
4. the preparation method of granolith composite material according to claim 1, it is characterised in that: the step (5)
For 24 hours, room temperature conserves 10 days for middle room temperature curing.
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| CN109626869A (en) * | 2019-01-29 | 2019-04-16 | 南通盟鼎新材料有限公司 | A kind of formula of mineral composite |
| CN111018405B (en) * | 2019-12-12 | 2023-01-06 | 中原工学院 | Steel-polypropylene fiber artificial granite composite material added with foam particles and preparation method thereof |
| CN112221251B (en) * | 2020-09-29 | 2021-11-05 | 江苏融道复合材料产业技术研究院有限公司 | Ceramic filter plate forming processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701623A (en) * | 2012-06-29 | 2012-10-03 | 山东大学 | Spraying vibration pre-processing method of aggregate of resin-mineral composite material and application in preparation of composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701623A (en) * | 2012-06-29 | 2012-10-03 | 山东大学 | Spraying vibration pre-processing method of aggregate of resin-mineral composite material and application in preparation of composite material |
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