CN1067699C - Preparation method of polyvinyl chloride-nylon 6 separation material - Google Patents
Preparation method of polyvinyl chloride-nylon 6 separation material Download PDFInfo
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- CN1067699C CN1067699C CN98122347A CN98122347A CN1067699C CN 1067699 C CN1067699 C CN 1067699C CN 98122347 A CN98122347 A CN 98122347A CN 98122347 A CN98122347 A CN 98122347A CN 1067699 C CN1067699 C CN 1067699C
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- nylon
- polyvinyl chloride
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- parting materials
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Abstract
The present invention provides a preparing method for polyvinyl chloride-nylon 6 separating material. In the method, after polyvinyl chloride-nylon 6 resins are rapidly hydrolyzed in acidic solution, a white obtained solid is crushed, filtered and washed to neutrality with the pH of 5 to 6, and a thick product of the PVC-nylon 6 resins is obtained. The thick product is dried, crushed and sieved to obtain granules with the granule diameter of 420 to 177 mu m. The separating material has great absorption capacity, rapid balancing speed and good use value for metal complex anions, and has the advantages of simple preparing method, low cost, and high quality of products.
Description
The invention belongs to the preparation method of polyvinyl chloride-nylon 6 dragon 6 parting materials.
Nylon 6 before the age, has been used to the separation of phenolic compound at 70-80.At the beginning of the nineties, this resin is used to the separation and concentration of gold again, and obtains good effect.Its mechanical property of single Nylon 6 is relatively poor, has reduced its use value.After nylon 6 was heated to second-order transition temperature (about 130 ℃), nylon 6 promptly lost chemically reactive.But after nylon 6 hydrolysis, because molecular breakdown, its corresponding function group can activate, and forms a kind of parting material with resin properties.If Nylon 6 can be coated on the rigid microspheres, then will produce positive influence to improving resin property.
The preparation method who the purpose of this invention is to provide a kind of polyvinyl chloride-nylon 6 dragon 6 parting materials, after this method is carried out quick hydrolysis with nylon 6 solution, again with polyvinyl chloride (PVC) microballoon thorough mixing after, make nylon 6 after the hydrolysis be attached to the surface of PVC microballoon.Thereby make the PVC-Nylon 6.This kind new type resin has good analytical performance.It has quick absorption and wash-out usefulness to multiple inorganic complex anion.
The object of the present invention is achieved like this:
The commercially available granular nylon 6 of 100g in 85-100 ℃ of heating, is dissolved in 500-ml acetate or first, acetate mixed solution (volume ratio) 1-2: among the 9-8, add the 200-300gPVC microballoon again, φ 177 μ m, fully stirring and evenly mixing 5-10 minute.This mixture is placed on fills room temperature-50 ℃, in the container of 1700-2000ml water, carry out quick hydrolysis, left standstill 10 minutes, with the white solid crushing of separating out, filter, washing is near neutral pH 5-6, obtains the raw product of PVC-Nylon 6.Through 70-75 ℃ of oven dry 36-48 hour, pulverize, sieve, collect the particle of φ 420-177 μ m, promptly get the PVC-Nylon 6.With gold (Au
3+) be example, its loading capacity can be up to 1.4mmol/g, and general resin only is 0.5mmol/g or lower.The PVC-Nylon 6 has stronger adsorptive power to multiple complex anion under acidic conditions.Because resin is little to the internal resistance of adion, equilibrium rate is fast, thereby has very high effect.The 2.0gPVC-Nylon 6 of in post, packing into, resin floor height 5-6cm, when flow velocity reaches 100ml/min, Au
3+Still can quantitatively be adsorbed.As a kind of parting material, use PVC-Nylon 6 separation and concentration after, can with various analysis (spectrophotometry, atomic absorption method, ICP-AES method etc.) coupling.Improve sensitivity and accuracy that they are measured.
Preparation method of the present invention is simple, and expense is lower, and the products obtained therefrom quality is good.The PVC-Nylon 6 that makes is big to metal complex anion loading capacity, and equilibrium rate is fast, and good use value is arranged.
Embodiment provided by the invention is as follows:
Embodiment 1:
6 heating of the commercially available particle dress of 100g nylon are dissolved in the 500ml acetate for 100 ℃, added the abundant stirring and evenly mixing of 200gPVC microballoon again 5 minutes.This mixture is transferred in the 2000ml beaker, constantly added 1700ml water under the stirring condition in batches.With gained solid matter filtration washing, get rough PVC-Nylon 6.Dried 36 hours, and pulverized and sieve, collect φ 420-177 μ m particle, promptly get the finished product of PVC-Nylon 6.
Embodiment 2:
90 ℃ of the commercially available particle of 100g dress nylon 6 heating are dissolved in the nitration mixture 1: 9 of 500ml formic acid and acetate, Heating temperature remains on 90 ± 2 ℃, stirs to quicken the dissolving of nylon 6.After nylon 6 dissolves fully, add the abundant stirring and evenly mixing of 200gPVC microballoon.One of this mixture impouring is filled in the plastic tub of 2000ml water, left standstill 10 minutes, with the white solid crushing of separating out, filter and washing again, wash to pH6,70 ℃ of oven dry 44 hours.Crushing screening then promptly gets the finished product of PVC-Nylon 6.
Embodiment 3:
85 ℃ of the commercially available particle of 100g dress nylon 6 heating are dissolved in the nitration mixture 2: 8 of 500ml formic acid and acetate, Heating temperature remains on 85 ± 2 ℃, treat that nylon 6 dissolve fully after, add the 300gPVC microballoon, abundant stirring and evenly mixing.One of this mixture impouring is filled in the enamel basin of 40 ℃ in 2000ml warm water, left standstill 10 minutes, with the white solid crushing of separating out, filter and washing, 75 ℃ of oven dry 48 hours.Crushing screening then promptly gets the finished product of PVC-Nylon 6.
Embodiment 4:
The commercially available particle of 100g dress nylon 6 is put into the 1000ml beaker, adds 400ml acetate and 100ml formic acid, put 85 ± 1 ℃ of baking oven internal heating, and often stir, treat that nylon 6 dissolve fully after, the abundant stirring and evenly mixing of adding 200gPVC microballoon φ 177 μ m 5 minutes.This viscous liquid is disperseed to add in the enamel basin that fills 2000ml water, left standstill 10 minutes, with the white mass crushing of separating out, filter and be washed with water to filtrate again near neutral pH 5.The gained white solid was put 75 ℃ of baking oven inner dryings 36-48 hour.Dried matter is pulverized with micromill.Cross the sieve of sieve aperture φ 420-177 μ m, collect middle this section product, promptly get the finished product of PVC-Nylon 6.
Claims (5)
1. the preparation method of polyvinyl chloride-nylon 6 dragon 6 parting materials, it is characterized in that adopting commercially available nylon 6, heating, be dissolved in acetate or formic acid, acetate mixed solution (volume ratio) 1-2: among the 9-8, add the polyvinyl chloride microballoon again, stir, this mixture is put into water carry out quick hydrolysis, leave standstill, with the white solid crushing of separating out, the raw product that filter, washing obtains polyvinyl chloride-nylon 6 dragon 6 resins, drying, the particle of collecting Φ 420-177 μ m of pulverizing, sieve obtain the polyvinyl chloride Nylon 6 again.
2. the preparation method of polyvinyl chloride-nylon 6 dragon 6 parting materials as claimed in claim 1 is characterized in that temperature is 85-100 ℃ with commercially available nylon 6 heating.
3. the preparation method of polyvinyl chloride-nylon 6 as claimed in claim 1 dragon 6 parting materials is characterized in that mixture puts into the water hydrolysis of room temperature-50 ℃.
4. the preparation method of polyvinyl chloride-nylon 6 dragon 6 parting materials as claimed in claim 1 is characterized in that the white solid of will separate out after the hydrolysis washs to neutral PH 5-6.
5. the preparation method of polyvinyl chloride-nylon 6 dragon 6 parting materials as claimed in claim 1 is characterized in that the raw product bake out temperature of polyvinyl chloride-nylon 6 dragon 6 resins is 70-75 ℃, and drying time is 36-48 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122347A CN1067699C (en) | 1998-11-13 | 1998-11-13 | Preparation method of polyvinyl chloride-nylon 6 separation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122347A CN1067699C (en) | 1998-11-13 | 1998-11-13 | Preparation method of polyvinyl chloride-nylon 6 separation material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1253964A CN1253964A (en) | 2000-05-24 |
| CN1067699C true CN1067699C (en) | 2001-06-27 |
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ID=5227742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98122347A Expired - Fee Related CN1067699C (en) | 1998-11-13 | 1998-11-13 | Preparation method of polyvinyl chloride-nylon 6 separation material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067699C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068503A (en) * | 1975-07-14 | 1978-01-17 | Whirlpool Corporation | Combined oscillating and unidirectional agitator for automatic washer |
| US4155228A (en) * | 1976-05-13 | 1979-05-22 | Whirlpool Corporation | One-way clutch for auger agitator |
| JPH10110153A (en) * | 1996-10-08 | 1998-04-28 | Sekisui Chem Co Ltd | Moisture-setting type hot melt adhesive composition |
-
1998
- 1998-11-13 CN CN98122347A patent/CN1067699C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068503A (en) * | 1975-07-14 | 1978-01-17 | Whirlpool Corporation | Combined oscillating and unidirectional agitator for automatic washer |
| US4155228A (en) * | 1976-05-13 | 1979-05-22 | Whirlpool Corporation | One-way clutch for auger agitator |
| JPH10110153A (en) * | 1996-10-08 | 1998-04-28 | Sekisui Chem Co Ltd | Moisture-setting type hot melt adhesive composition |
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| Publication number | Publication date |
|---|---|
| CN1253964A (en) | 2000-05-24 |
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