FEP colorful particle processing method
The invention discloses a processing method for uniform-colored FEP colorful particles. The processing method comprises the following steps: (1) fluorination pretreatment: FEP fluororesins in raw materials are added in a reactor; fluorine and nitrogen mixed gas with a certain ratio is introduced for...
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| creator | HONG HAIJIANG KONG XIANDA ZHANG LU |
| description | The invention discloses a processing method for uniform-colored FEP colorful particles. The processing method comprises the following steps: (1) fluorination pretreatment: FEP fluororesins in raw materials are added in a reactor; fluorine and nitrogen mixed gas with a certain ratio is introduced for reaction by a period of time at a proper temperature; and instable end groups on FEP are replaced by fluorination to obtain fluorinated FEP fluororesins; (2) mixing: the fluorinated FEP fluororesins, dispersing agents, modified fillers and pigment are put in a container for mixing according to a certain ratio for full mixing; (3) melting extrusion: the uniform-mixed materials in the step (2) are added in an extruder for melting extrusion molding at a proper temperature; and (4) postprocessing:the molded products extruded in the step (3) are subsequently processed, including cooling, dehydration, dicing and drying. In the fluorination process of FEP fluororesin base stocks, through removalof active end groups, the |
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The processing method comprises the following steps: (1) fluorination pretreatment: FEP fluororesins in raw materials are added in a reactor; fluorine and nitrogen mixed gas with a certain ratio is introduced for reaction by a period of time at a proper temperature; and instable end groups on FEP are replaced by fluorination to obtain fluorinated FEP fluororesins; (2) mixing: the fluorinated FEP fluororesins, dispersing agents, modified fillers and pigment are put in a container for mixing according to a certain ratio for full mixing; (3) melting extrusion: the uniform-mixed materials in the step (2) are added in an extruder for melting extrusion molding at a proper temperature; and (4) postprocessing:the molded products extruded in the step (3) are subsequently processed, including cooling, dehydration, dicing and drying. In the fluorination process of FEP fluororesin base stocks, through removalof active end groups, the</description><language>chi ; eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; MAKING GRANULES OR PREFORMS ; PERFORMING OPERATIONS ; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED ; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190416&DB=EPODOC&CC=CN&NR=109624129A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190416&DB=EPODOC&CC=CN&NR=109624129A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HONG HAIJIANG</creatorcontrib><creatorcontrib>KONG XIANDA</creatorcontrib><creatorcontrib>ZHANG LU</creatorcontrib><title>FEP colorful particle processing method</title><description>The invention discloses a processing method for uniform-colored FEP colorful particles. The processing method comprises the following steps: (1) fluorination pretreatment: FEP fluororesins in raw materials are added in a reactor; fluorine and nitrogen mixed gas with a certain ratio is introduced for reaction by a period of time at a proper temperature; and instable end groups on FEP are replaced by fluorination to obtain fluorinated FEP fluororesins; (2) mixing: the fluorinated FEP fluororesins, dispersing agents, modified fillers and pigment are put in a container for mixing according to a certain ratio for full mixing; (3) melting extrusion: the uniform-mixed materials in the step (2) are added in an extruder for melting extrusion molding at a proper temperature; and (4) postprocessing:the molded products extruded in the step (3) are subsequently processed, including cooling, dehydration, dicing and drying. 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The processing method comprises the following steps: (1) fluorination pretreatment: FEP fluororesins in raw materials are added in a reactor; fluorine and nitrogen mixed gas with a certain ratio is introduced for reaction by a period of time at a proper temperature; and instable end groups on FEP are replaced by fluorination to obtain fluorinated FEP fluororesins; (2) mixing: the fluorinated FEP fluororesins, dispersing agents, modified fillers and pigment are put in a container for mixing according to a certain ratio for full mixing; (3) melting extrusion: the uniform-mixed materials in the step (2) are added in an extruder for melting extrusion molding at a proper temperature; and (4) postprocessing:the molded products extruded in the step (3) are subsequently processed, including cooling, dehydration, dicing and drying. In the fluorination process of FEP fluororesin base stocks, through removalof active end groups, the</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | FEP colorful particle processing method |
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