CN105400236A - Method for using ardealite as polyvinyl chloride soft sectional material packing - Google Patents
Method for using ardealite as polyvinyl chloride soft sectional material packing Download PDFInfo
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- CN105400236A CN105400236A CN201510852216.5A CN201510852216A CN105400236A CN 105400236 A CN105400236 A CN 105400236A CN 201510852216 A CN201510852216 A CN 201510852216A CN 105400236 A CN105400236 A CN 105400236A
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- polyvinyl chloride
- phosphogypsum
- section bar
- soft section
- filler
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Abstract
The invention relates to the technical field of ardealite treatment, in particular to a method for using ardealite as polyvinyl chloride soft sectional material packing. The ardealite is ground into particulate matter with a particle size of 66-80 [mu]m and is led into saturated steam to undergo heat treatment for 1-2 h, and alpha type semi-hydrated gypsum is acquired; the alpha type semi-hydrated gypsum is evenly stirred with an emulsifier according to a mass ratio of 10:3 and then is emulsified at 60-70 DEG C, sodium carboxymethyl cellulose is added and stirring is performed, and carboxyl complexing type ardealite packing used as the polyvinyl chloride soft sectional material packing is obtained. The method is simple in process and low in cost, the plasticization of ardealite in a polyvinyl chloride soft sectional material can be accelerated in the processing process, the liquidity between the packing and polyvinyl chloride macromolecules is good, the packing is easy to form, the performance of the packing is brought into full play, the fracture resistance and elasticity modulus of the polyvinyl chloride soft sectional material are improved, and the packing can be used for the polyvinyl chloride soft sectional material.
Description
Technical field
The present invention relates to phosphogypsum Treatment process field, be specifically related to a kind of method phosphogypsum being used as the soft section bar filler of polyvinyl chloride.
Background technology
Phosphogypsum is the solid slag of Phosphate Fertilizer Industry, at present, show according to relevant statistics, the phosphogypsum total amount that China stores up has reached more than 2.5 hundred million tons, and annual newly-increased phosphogypsum quantity discharged is also more than 5,000 ten thousand tons, the rapid growth of phosphogypsum and bulk deposition, not only land occupation resource and cause environmental stress, too increase the economical load of enterprise, and the development of the national economy pressure of China.Therefore, accelerate the comprehensive utilization technique creativity of phosphogypsum, realize turning waste into wealth, turning bane into boon, having become in China's economic construction an important techno-economic policy, is also the problem in the urgent need to address of Faced In Sustainable Development.According to the gist of a document of " State Council is about the notice printing and distributing Circular Economy Development Strategy and Immediate action plan " (No. [2013] 5, promulgated by the State Council), one of resource utilization major construction projects have been listed in the comprehensive utilization of the industrial solid castoff such as phosphogypsum, flyash in, become Establishing Circular Economy Syste m in China, one of vital task of building a resource-conserving and environment-friendly society.
At present, the utilization of phosphogypsum mainly contains the following aspects: 1. make cement setting retarder; 2. Sulphuric acid salt; 3. building materials of gypsum is made; 4. make soil improvement agent etc., but its utilization ratio is only 2%-3%, resource utilization efficiency is lower.Due to phosphogypsum crystal morphology in the form of sheets, be applied to thermotolerance, resistance to impact shock, thermal conductivity and the insulativity etc. that are conducive to improving the soft section bar of polyvinyl chloride in polyvinyl chloride soft section bar filler.
In the prior art, phosphogypsum has the feature of typical laminal filler, as filler effect in the plastic mainly increment reduce costs, can also be used to improve the Young's modulus meeting system, shock strength and flexural strength etc., but phosphogypsum also has following not enough as the application of a kind of novel filler application in the plastic particularly in polyvinyl chloride soft material: one is that phosphogypsum contains plurality of impurities it is acidity because it contains the phosphoric acid of unreacted sulfuric acid and remnants and hydrofluoric acid, directly phosphogypsum is used as polyvinyl chloride packings, can have an impact to the thermostable type of polyvinyl chloride, two is that the polarity spectrum of the polarity of mineral filler and superpolymer is very large, easily causes the two consistency bad, thus brings detrimentally affect to the processing characteristics of weighting material and the application properties of goods.
Summary of the invention
The present invention mainly explores the new packing of the soft section bar production process of polyvinyl chloride, for solving the problems of the technologies described above, provide the soft section bar filler of polyvinyl chloride that a kind of method is easy, production cost is low, quality meets the technical requirements that the soft section bar of polyvinyl chloride is produced.
Be achieved especially by once scheme:
Phosphogypsum is used as a method for the soft section bar filler of polyvinyl chloride, comprises following methods:
(1) phosphogypsum is ground to form the particulate matter that granularity is 66-80 μm, pass into saturated vapor and heat-treat 1-2h, obtain alpha semi-hydrated gypsum;
(2) after alpha semi-hydrated gypsum and emulsifying agent being stirred by the mass ratio of 10:3, emulsification is carried out at temperature is 60-70 DEG C, add Xylo-Mucine again to stir, obtain the carboxyl solvay-type phosphogypsum filler being used as the soft section bar filler of polyvinyl chloride.
Described thermal treatment is constant temp. heating process.
The heat treated temperature of described constant temperature is 150-160 DEG C.
Described emulsifying agent by paraffin and sorbitan monooleate by 10:(3-5) mass ratio form.
Described paraffin adopts whiteruss.
The water-oil ratio of described whiteruss is 3-4, and preferably water oil ratio is 3.5.
Described emulsification times is 20-30min.
Described stir speed (S.S.) is 700-900r/min.
Describedly add Xylo-Mucine, regulate material pH to be 6.8-7.4.
Beneficial effect of the present invention
The inventive method technique is simple, cost is low, that phosphogypsum is heat-treated, obtained alpha semi-hydrated gypsum, and alpha semi-hydrated gypsum is about 200 DEG C time, there is the heat absorption paddy that one larger, it can be made to be dehydrated into anhydrite Ⅲ, an exothermic peak is had at about 230 DEG C, anhydrite Ⅲ can be made to change to anhydrite Ⅱ, carried out emulsification again, improve on the basis of its water-intake rate, enhance its dispersed and stability, further by control emulsifier and water-oil ratio thereof, improve crystalline density and intensity, coordinate the effect of Xylo-Mucine and the control of material pH value simultaneously, non-ferrous metal is carried out complexing, on the one hand mineral ion is adsorbed by macromolecule group, improve the whiteness that filler made by phosphogypsum on the other hand.
Mobility between this product and PVC macromolecular is better, be easy to shaping, and give full play to its performance, be applied in the course of processing of the soft section bar of polyvinyl chloride, the plasticizing of phosphogypsum in the soft section bar of polyvinyl chloride can be accelerated, micro-suspension polymerization is adopted to produce the soft section bar of polyvinyl chloride, use filler of the present invention, plasticization temperature is reduced in its course of processing, and in traditional technology, filler is added about 110 DEG C time, and filler of the present invention just can be added into about 100 DEG C time, use anti-folding rupture strength and the Young's modulus of filler of the present invention and then the soft section bar of raising polyvinyl chloride,
Embodiment
Below in conjunction with concrete embodiment, further restriction is done to technical scheme of the present invention, but claimed scope is not only confined to done description.
Embodiment 1
Step 1: emulsifying agent is prepared
Select water-oil ratio to be the whiteruss of 3.5, mix with the mass ratio of sorbitan monooleate by 10:3.
Step 2: prepared by filler
1kg phosphogypsum is ground to form the particulate matter that granularity is 66 μm, passes into saturated vapor, at thermostat temperature is 155 DEG C, heat-treats 2h, obtain alpha semi-hydrated gypsum; Add 0.3kg emulsifying agent, after stirring under stir speed (S.S.) is 700r/min, be carry out emulsification 20min within the scope of 68-70 DEG C in temperature, add 0.24kg Xylo-Mucine again to stir, its stir speed (S.S.) is 700r/min, obtains the carboxyl solvay-type phosphogypsum filler being used as the soft section bar filler of polyvinyl chloride.
Embodiment 2
Step 1: emulsifying agent is prepared
Select water-oil ratio to be the whiteruss of 3, mix all with the mass ratio of sorbitan monooleate by 2:1.
Step 2: prepared by filler
3kg phosphogypsum is ground to form the particulate matter that granularity is 80 μm, passes into saturated vapor, at thermostat temperature is 160 DEG C, heat-treats 1.5h, obtain alpha semi-hydrated gypsum; Add 0.9kg emulsifying agent, after stirring under stir speed (S.S.) is 800r/min, be carry out emulsification 30min within the scope of 63-67 DEG C in temperature, add 0.68kg Xylo-Mucine again to stir, its stir speed (S.S.) is 900r/min, obtains the carboxyl solvay-type phosphogypsum filler being used as the soft section bar filler of polyvinyl chloride
Embodiment 3
Step 1: emulsifying agent is prepared
Select water-oil ratio to be the whiteruss of 4, mix with the mass ratio of sorbitan monooleate by 5:2.
Step 2: prepared by filler
1kg phosphogypsum is ground to form the particulate matter that granularity is 72 μm, passes into saturated vapor, at thermostat temperature is 150 DEG C, heat-treats 1h, obtain alpha semi-hydrated gypsum; Add 0.3kg emulsifying agent, after stirring under stir speed (S.S.) is 900r/min, be carry out emulsification 25min within the scope of 60-65 DEG C in temperature, add 0.26kg Xylo-Mucine again to stir, its stir speed (S.S.) is 700r/min, obtains the carboxyl solvay-type phosphogypsum filler being used as the soft section bar filler of polyvinyl chloride.
Test example 1
By polyvinyl chloride and CaCO
3phosphogypsum filler prepared by filler, embodiment 1-3 all in mass ratio for 10:3 carries out batch mixing and add identical amount and kind other auxiliary agents mixing after, through extruding, the operation such as sizing reaches the soft section bar of polyvinyl chloride, be designated as comparative group 1, experimental group 1-3 successively, by traditional technique in measuring elongation at break, tear strength, low temperature to pack temperature, its result is as shown in table 1:
Table 1
| Sample | Elongation at break (%) | Tear strength (kN) | Low temperature is to pack temperature (DEG C) |
| Comparative group 1 | 62 | 174.5 | -20 |
| Experimental group 1 | 96 | 202.9 | -22 |
| Experimental group 2 | 110 | 205.1 | -20 |
| Experimental group 3 | 103 | 197.9 | -21 |
As seen from Table 1, phosphogypsum of the present invention makes filler when producing for the soft section bar of polyvinyl chloride, make filler relative to CaCO3 and produce the soft section bar of polyvinyl chloride, the elongation at break of the soft section bar of its polyvinyl chloride increases, tear strength increases, low temperature doubling temperature head is few, and this illustrates that phosphogypsum of the present invention is used as filler and produces the soft section bar of polyvinyl chloride, has the advantages that tear-resistant, resistance to fracture, elastic performance are good.
Claims (10)
1. phosphogypsum is used as a method for the soft section bar filler of polyvinyl chloride, it is characterized in that, comprise the following steps:
(1) phosphogypsum is ground to form the particulate matter that granularity is 66-80 μm, pass into saturated vapor and heat-treat 1-2h, obtain alpha semi-hydrated gypsum;
(2) after alpha semi-hydrated gypsum and emulsifying agent being stirred by the mass ratio of 10:3, emulsification is carried out at temperature is 60-70 DEG C, add Xylo-Mucine again to stir, the carboxyl solvay-type phosphogypsum filler of the soft section bar filler of polyvinyl chloride must be used as.
2. as claimed in claim 1 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described thermal treatment is constant temp. heating process.
3. as claimed in claim 2 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, the heat treated temperature of described constant temperature is 150-160 DEG C.
4. as claimed in claim 1 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described emulsifying agent by paraffin and sorbitan monooleate by 10:(3-5) mass ratio form.
5. as claimed in claim 4 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described paraffin adopts whiteruss.
6. as claimed in claim 5 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, the water-oil ratio of described whiteruss is 3-4.
7. method phosphogypsum being used as the soft section bar filler of polyvinyl chloride as described in claim 5 or 6, it is characterized in that, the water-oil ratio of described whiteruss is 3.5.
8. as claimed in claim 1 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described emulsification times is 20-30min.
9. as claimed in claim 1 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described stir speed (S.S.) is 700-900r/min.
10. as claimed in claim 1 phosphogypsum is used as the method for the soft section bar filler of polyvinyl chloride, it is characterized in that, described in add Xylo-Mucine, regulate material pH to be 6.8-7.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510852216.5A CN105400236A (en) | 2015-11-29 | 2015-11-29 | Method for using ardealite as polyvinyl chloride soft sectional material packing |
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| CN201510852216.5A CN105400236A (en) | 2015-11-29 | 2015-11-29 | Method for using ardealite as polyvinyl chloride soft sectional material packing |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844884A (en) * | 2009-03-27 | 2010-09-29 | 瓮福（集团）有限责任公司 | Hydrophobic phosphogypsum, and preparation method and application thereof |
| CN102276228A (en) * | 2011-05-30 | 2011-12-14 | 昆明理工大学 | Preparation method of ardealite recrystallization wall material |
| CN103274659A (en) * | 2013-05-13 | 2013-09-04 | 武汉理工大学 | Ardealite-based self-leveling material |
| CN103319762A (en) * | 2013-06-24 | 2013-09-25 | 清华大学 | Method for preparing high filling polyvinyl chloride or polyolefin composite material by employing industrial solid wastes |
| CN103435937A (en) * | 2013-08-28 | 2013-12-11 | 贵州开磷遵义碱厂 | Method for using phosphogypsum as polyvinyl chloride resin filler |
| CN104692755A (en) * | 2015-02-02 | 2015-06-10 | 武汉理工大学 | Phosphogypsum-base self-leveling material and preparation method thereof |
| CN104974450A (en) * | 2015-07-23 | 2015-10-14 | 杭州龙勤新材料科技有限公司 | Polyvinyl chloride plastic composition |
-
2015
- 2015-11-29 CN CN201510852216.5A patent/CN105400236A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844884A (en) * | 2009-03-27 | 2010-09-29 | 瓮福（集团）有限责任公司 | Hydrophobic phosphogypsum, and preparation method and application thereof |
| CN102276228A (en) * | 2011-05-30 | 2011-12-14 | 昆明理工大学 | Preparation method of ardealite recrystallization wall material |
| CN103274659A (en) * | 2013-05-13 | 2013-09-04 | 武汉理工大学 | Ardealite-based self-leveling material |
| CN103319762A (en) * | 2013-06-24 | 2013-09-25 | 清华大学 | Method for preparing high filling polyvinyl chloride or polyolefin composite material by employing industrial solid wastes |
| CN103435937A (en) * | 2013-08-28 | 2013-12-11 | 贵州开磷遵义碱厂 | Method for using phosphogypsum as polyvinyl chloride resin filler |
| CN104692755A (en) * | 2015-02-02 | 2015-06-10 | 武汉理工大学 | Phosphogypsum-base self-leveling material and preparation method thereof |
| CN104974450A (en) * | 2015-07-23 | 2015-10-14 | 杭州龙勤新材料科技有限公司 | Polyvinyl chloride plastic composition |
Non-Patent Citations (1)
| Title |
|---|
| 茹晓红等: "磷石膏制高强α 半水石膏研究进展", 《新型建筑材料》 * |
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Application publication date: 20160316 |