CN1043948A - Method with making plastics rubber filler by salt mud waste - Google Patents
Method with making plastics rubber filler by salt mud waste Download PDFInfo
- Publication number
- CN1043948A CN1043948A CN 89106814 CN89106814A CN1043948A CN 1043948 A CN1043948 A CN 1043948A CN 89106814 CN89106814 CN 89106814 CN 89106814 A CN89106814 A CN 89106814A CN 1043948 A CN1043948 A CN 1043948A
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- China
- Prior art keywords
- salt
- plastics
- rubber
- salt slurry
- mud waste
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Salt slurry is the waste material that produces in the salt solution system system process, use making plastics rubber filler by salt mud waste, after the oven dry of wet basis salt slurry, carry out grinding and selection by winnowing classification again, its finished product granularity is less than 50 microns, this method treatment scheme is simple, can reduce the cost of plastics and rubber, improve some performance of plastics and rubber, improved the environmental pollution that salt mud waste causes simultaneously, with the filler that salt mud waste is produced, can be widely used as in, the packing material of low-grade plastics, rubber item, as filled plastics sheet material, tubing, profiled material and offset plate, sebific duct etc.
Description
What the present invention relates to is the method for producing plastics, loading material of rubber with salt mud waste.
What existing plastics, loading material of rubber were the most frequently used is light calcium carbonate, and its preparation process will be through the coarse crushing of selecting materials, calcine, add water, feed carbonic acid gas, precipitation, filtration, oven dry and classification supervisor, more complicated.Red mud, the boron mud report as plastic filler also appearred in the patent documentation adopting.
Salt slurry is the waste material that produces in the chlor-alkali plant salt refining process, and its major ingredient is lime carbonate, magnesium hydroxide and calcium sulfate.Aspect the comprehensive utilization of salt slurry,, mainly be to produce magnesiumcarbonate according to reported in literature.Contain the magnesium hydroxide about 25% in the salt slurry, can produce magnesiumcarbonate behind the unit operations such as process calcining, hydrolysis, feeding carbonic acid gas, separation, oven dry, but not see suitability for industrialized production with other reason because of treatment scheme is long.
The pH value of salt slurry is 11～13, and alkalescence is stronger.After being processed into tiny particle, activity is preferably arranged, can be used as the filler of plastics, rubber.
Use making plastics rubber filler by salt mud waste, the equipment of use mainly is dryer, grinding machine and selection by winnowing stage equipment.Its preparation method flow process is: at first the wet basis salt slurry dried, and 100～300 ℃ of bake out temperatures, the time is 2-6 hour, oven dry back salt slurry material moisture is less than 1%; With salt slurry material grinding, the selection by winnowing classification of oven dry, the granularity that requires the finished product powder is less than 50 microns then.
Method flow of the present invention is short, handles simply, and cost is low.The salt mud emission amount in the whole nation is estimated annual about 100,000 tons, with the problem of complex utilization of this method solution salt slurry, can eliminate environmental pollution, turns waste into wealth, and creates huge economic benefit.It is estimated, if salt mud waste all is used as the filler of plastics, rubber, but every year about 1,000 ten thousand yuan of create beneficial result.
The salt slurry filler is compared with light calcium carbonate, and production cost is much lower, and except that colourity, the two filling properties is suitable.Can be widely used as in, the packing material of low-grade plastics and rubber item.Aspect materials such as filled plastics tubing, sheet material, profiled material, floor tile, fully can be with the salt slurry substitute for light calcium carbonate as filler.
Embodiment:
Wet basis salt slurry 1.0kg with moisture about 30% is spread out in the enamel tray naturally, and windrow thickness is 10mm, and enamel tray is placed in the electric heating convection oven, dried 4 hours down at 110 ℃, and the heavy 0.71kg of oven dry back material, wherein water content is 0.8%.The material sealing of oven dry back is preserved.
With the material 2.0kg process ball mill grinding and the selection by winnowing classification of oven dry, 2.0 hours on times, discharging-material size 300 mesh standard sieve percent of pass all pass through, and promptly granularity is less than 50 microns.Material behind the ball milling is deposited stand-by as finished product sealing.
With above-mentioned salt slurry filler finished product filling polyvinyl chloride (PVC) sheet material, measure its mechanical property, and with the contrast of the light calcium carbonate of suitable granularity, investigate its water immersion stability, experimental formula is as follows:
Title material: parts by weight:
PVC（TK-800） 100
Lead sulfate tribasic 6
Calcium stearate 0.5
Barium stearate 0.7
Stearic acid 0.3
White oil 1.0
O-phthalic acid dibutyl ester (DOP) 5
Salt slurry salt material 30
Measurement result sees Table 1.
Table one: the fade stability test result of salt slurry and light calcium carbonate filled PVC:
| Prescription | Soaking time (hour) | Tensile strength (kg/cm 2) | Extension at break (%) | Shock strength (kg.cm/cm) |
| 30 parts of fillings of salt slurry | 0 | 422 | 24 | 4.0 |
| 30 parts of fillings of light calcium carbonate | 0 | 446 | 26 | 4.4 |
| 30 parts of fillings of salt slurry | 1440 | 446 | 17 | 4.0 |
| 30 parts of fillings of light calcium carbonate | 1440 | 453 | 16 | 4.6 |
Annotate 1: the mensuration of tensile strength and extension at break is pressed the ASTMD638 standard; The mensuration of shock strength is pressed the ASTMD256 standard, uses notch shock, and the print width is 2mm.
Annotate 2: above each data are all pressed standard-required, are the mean value of a plurality of observed values.
From table one as can be seen, both mechanical properties, water immersion stability is suitable.
Claims (3)
1, produces the method for plastics rubber filler with salt slurry, it is characterized in that: dry the salt slurry of wet basis earlier, then with the salt slurry material grinding and the selection by winnowing classification of drying.
2, method as claimed in claim 1, the temperature that it is characterized in that drying salt slurry is 100～300 ℃, and the time is 2-6 hour, and water content is less than 1% in the salt slurry material of oven dry back;
3, as the method for claim 1 and 2, behind the salt slurry material process grinding and selection by winnowing classification that it is characterized in that drying, the granularity of finished product powder should be less than 50 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106814 CN1026702C (en) | 1989-09-14 | 1989-09-14 | Method of making plastics rubber filler by salt mud waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106814 CN1026702C (en) | 1989-09-14 | 1989-09-14 | Method of making plastics rubber filler by salt mud waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1043948A true CN1043948A (en) | 1990-07-18 |
| CN1026702C CN1026702C (en) | 1994-11-23 |
Family
ID=4856888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89106814 Expired - Fee Related CN1026702C (en) | 1989-09-14 | 1989-09-14 | Method of making plastics rubber filler by salt mud waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026702C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395737A (en) * | 2018-03-13 | 2018-08-14 | 济南大学 | A kind of rubber and plastic filler and its preparation method and application |
-
1989
- 1989-09-14 CN CN 89106814 patent/CN1026702C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395737A (en) * | 2018-03-13 | 2018-08-14 | 济南大学 | A kind of rubber and plastic filler and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026702C (en) | 1994-11-23 |
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| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |