CN104441309A - Production method of hydrophilic resin granule - Google Patents
Production method of hydrophilic resin granule Download PDFInfo
- Publication number
- CN104441309A CN104441309A CN201310445764.7A CN201310445764A CN104441309A CN 104441309 A CN104441309 A CN 104441309A CN 201310445764 A CN201310445764 A CN 201310445764A CN 104441309 A CN104441309 A CN 104441309A
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- CN
- China
- Prior art keywords
- resin
- hydrophilic resin
- hydrophilic
- granular solids
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a production method of a hydrophilic resin granule. The production method comprises an extrusion procedure, a cooling procedure and a granulating procedure, wherein in the extrusion procedure, hydrophilic resin is molten and extruded; in the cooling procedure, the extruded resin is contacted with a metal plate to be cooled and cured to obtain cured resin; and in the granulating procedure, the cured resin is granulated to obtain the resin granules, and therefore, the hydrophilic resin granule is produced. The produced hydrophilic resin granule can be used for extrusion formation and the like.
Description
Technical field
The present invention relates to a kind of manufacture method with hydrophilic resin granular solids, more specifically relate to the manufacture method being suitable for the hydrophilic resin granular solids used as formed machining raw materials such as extrusion moldings.
Background technology
In the processing of the thermoplastic resin for the manufacture of formed body, film, container etc., often use extruder extrusion molding.This extrusion molding generally uses the resin be granulated in advance, and its melting is supplied extruder.
As extrusion molding resin used, such as, when the non-water-soluble resins such as PP (polypropylene), PE (polyethylene), ABS (acrylonitrile-butadiene-styrene copolymer), PET (PETG), adopt, by extruder, molten resin is squeezed into rope form, it is solidified by water cooling, uses rope cutting machine etc. to obtain the method for particle.But, hydrophilic resin, particularly when the alkylene oxide polymer containing oxirane, due to fusing point is lower and also to the dissolution velocity of water or absorption speed large, above-mentioned existing method can not be used.Thus, at present when using hydrophilic resin, generally in the fabrication stage powdered in advance of hydrophilic resin, by this powder feeding extruder.But when supply powdex, often there is poly-material, make the weight feed of so-called resin produce difficulty, the problem of target formed products can not be obtained.
Summary of the invention
The present invention carries out to solve the problem, and the object of this invention is to provide the manufacture method of the hydrophilic resin granular solids using extrusion molding etc. to obtain.
The technical scheme adopted is:
One has hydrophilic resin granular solids, it is characterized in that comprising and make hydrophilic resin melting and the extrusion process of extruding, this resin is water miscible resin or water-absorbing resins, based on the weight of this water-absorbing resins, has the water imbibition of 100 % by weight or larger; Make the resin of extruding contact the refrigerating work procedure obtaining cured resin with cooling curing with metallic plate, and make this cured resin be granulated the granulation processes obtaining resin granular solids.
Manufacture method of the present invention, comprise and make hydrophilic resin melting and the extrusion process being squeezed into certain thickness tabular, wherein resin is water miscible resin or absorptive resin, based on the weight of this water-absorbing resins, has 100% weight or larger water imbibition; The refrigerating work procedure two sides of the sheet-like resin of this extruding or one side being contacted with metallic plate obtain cured resin with this sheet-like resin of cooling curing and this cured resin is granulated obtain the spheroidizing operation of resin granular solids.
Manufacture method of the present invention, also comprises the classification operation of resin granular solids granularity described in classification; Cooling curing in described refrigerating work procedure is by carrying out from the inside of described metallic plate and refrigerant contact; Granulation in described granulation processes uses compressing tablet comminutor to carry out; Described granulation processes carries out in dry atmosphere; Described hydrophilic resin to be rheological temperature the be thermoplastic resin of 50-200 DEG C; The melt viscosity of the above-mentioned hydrophilic resin in described extrusion process is 200-3000Pa.s; Described hydrophilic resin is the polyalkylene oxide polymer containing oxirane.
The invention has the advantages that: the applicant in view of the above problems; the granulation of hydrophily low-melting-point resin is attentively studied; it found that the extrusion process extruded by melting hydrophilic resin, the resin making this extrude are contacted the refrigerating work procedure that obtains cured resin with cooling curing and this cured resin be granulated the granulation processes obtaining resin granular solids with metallic plate; granulation hydrophilic resin can be carried out with the speed of production of practicality, thus complete the present invention.
In addition; the applicant finds; be squeezed into the extrusion process of certain thickness tabular by making melting hydrophilic resin, the two sides of the sheet-like resin of this extruding or one side contacted with this sheet-like resin of cooling curing with metallic plate and obtains the refrigerating work procedure of cured resin and make this cured resin be granulated the granulation processes obtaining resin granular solids; hydrophilic resin can be granulated with the speed of production of practicality, thus complete the present invention.
Detailed description of the invention
Embodiment one
A kind of manufacture method with hydrophilic resin granular solids, at temperature in the kettle 160 DEG C, melting is by PE06000 diamines (molecular weight 8000) and 1, the polyurea polylol (molecular weight 125000, rheological temperature 85 DEG C) that hexamethylene-diisocyanate MEK oxime block precursor reactant obtains.At this moment melt viscosity is about 1400Pas.This molten resin is at the bottom of the still being provided with polymer pump, and the sheet wide with 60cm on given of W steel band, 2.2mm is thick is discharged.The discharge rate of molten resin is 400k9/H.At this moment the W steel band used, wide 80cm, long 13m, speed 10m/mm, the cold-producing medium of 20 DEG C of spraying from the reverse side of the W steel Supreme Being metal covering with resin contact.In this embodiment 1, when being determined at the temperature on the sheet surface of W steel band exit cooling curing, it is 25 DEG C.Secondly, use compressing tablet comminutor that this resin sheet is cut into wide 4mm, long 4mm.Then, grading is carried out with swinging screen(ing) machine.At this moment be 0.2% with the disqualification rate of improperly sized coccoid of screen(ing) machine removing, even if in particle size determination, wide, long, thick irregular value is also within 15%.
Claims (3)
1. one kind has hydrophilic resin granular solids, it is characterized in that comprising and make hydrophilic resin melting and the extrusion process of extruding, this resin is water miscible resin or water-absorbing resins, based on the weight of this water-absorbing resins, has the water imbibition of 100 % by weight or larger; Make the resin of extruding contact the refrigerating work procedure obtaining cured resin with cooling curing with metallic plate, and make this cured resin be granulated the granulation processes obtaining resin granular solids.
2. a kind of manufacture method with hydrophilic resin granular solids according to claim 1, it is characterized in that comprising and make hydrophilic resin melting and the extrusion process being squeezed into certain thickness tabular, wherein resin is water miscible resin or absorptive resin, based on the weight of this water-absorbing resins, there is 100% weight or larger water imbibition; The refrigerating work procedure two sides of the sheet-like resin of this extruding or one side being contacted with metallic plate obtain cured resin with this sheet-like resin of cooling curing and this cured resin is granulated obtain the spheroidizing operation of resin granular solids.
3. a kind of manufacture method with hydrophilic resin granular solids according to claim 1 and 2, is characterized in that the classification operation also comprising resin granular solids granularity described in classification; Cooling curing in described refrigerating work procedure is by carrying out from the inside of described metallic plate and refrigerant contact; Granulation in described granulation processes uses compressing tablet comminutor to carry out; Described granulation processes carries out in dry atmosphere; Described hydrophilic resin to be rheological temperature the be thermoplastic resin of 50-200 DEG C; The melt viscosity of the above-mentioned hydrophilic resin in described extrusion process is 200-3000Pa.s; Described hydrophilic resin is the polyalkylene oxide polymer containing oxirane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445764.7A CN104441309A (en) | 2013-09-22 | 2013-09-22 | Production method of hydrophilic resin granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445764.7A CN104441309A (en) | 2013-09-22 | 2013-09-22 | Production method of hydrophilic resin granule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104441309A true CN104441309A (en) | 2015-03-25 |
Family
ID=52888442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310445764.7A Pending CN104441309A (en) | 2013-09-22 | 2013-09-22 | Production method of hydrophilic resin granule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104441309A (en) |
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2013
- 2013-09-22 CN CN201310445764.7A patent/CN104441309A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: He Peng Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |