PL433979A1 - Bactericidal polylactide film and method of its preparation - Google Patents

Bactericidal polylactide film and method of its preparation

Info

Publication number
PL433979A1
PL433979A1 PL433979A PL43397920A PL433979A1 PL 433979 A1 PL433979 A1 PL 433979A1 PL 433979 A PL433979 A PL 433979A PL 43397920 A PL43397920 A PL 43397920A PL 433979 A1 PL433979 A1 PL 433979A1
Authority
PL
Poland
Prior art keywords
pla
tar
weight
preparation
biostatic
Prior art date
Application number
PL433979A
Other languages
Polish (pl)
Inventor
Grażyna Dąbrowska
Agnieszka Richert
Henryk Dąbrowski
Original Assignee
Uniwersytet Mikołaja Kopernika W Toruniu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uniwersytet Mikołaja Kopernika W Toruniu filed Critical Uniwersytet Mikołaja Kopernika W Toruniu
Priority to PL433979A priority Critical patent/PL433979A1/en
Publication of PL433979A1 publication Critical patent/PL433979A1/en

Links

Landscapes

  • Medicines Containing Plant Substances (AREA)
  • Medicinal Preparation (AREA)

Abstract

Przedmiotem zgłoszenia jest folia PLA o właściwościach biostatycznych i bakteriobójczych, która charakteryzuje się tym, że zawiera od 0,02% do 5,0% masowych dziegciu. Zgłoszenie obejmuje także sposób otrzymywania folii PLA o właściwościach biostatycznych i bakteriobójczych, który charakteryzuje się tym, że granulat PLA rozpuszcza się w chloroformie w stosunku od 50:1 do 50:2 chloroform: PLA i miesza przez co najmniej 0,5 godziny, a następnie ciągle mieszając dodaje plastyfikatora, korzystnie poliwęglanu etylenowego w ilości od 1,5 do 2 krotności ilości PLA, po czym dodaje od 0,02% do 5% dziegciu w stosunku do całkowitej masy rozworu, korzystnie dziegciu brzozowego, a najkorzystniej dziegciu z kory brzozowej, a następnie wylewa na ograniczoną płaską powierzchnię przyjmując od 0,3 do 0,5 m2 powierzchni na 1 kg roztworu i odparowuje rozpuszczalnik a otrzymany arkusz folii suszy w temperaturze pokojowej przez okres od 24 do 48 godzin. Sposób otrzymywania folii PLA charakteryzuje się tym, że granulat PLA miesza się z dziegciem dla otrzymania mieszaniny o stężeniu w zakresie 0,02% do 5,0% masowych dziegciu, korzystnie 0,1% do 2,0% masowych dziegciu, a następnie poddaje formowaniu przez wytłaczanie folii płaskiej, w wytłaczarce jedno lub dwu-ślimakowej, korzystnie współbieżnej w temperaturze od 150°C do 260°C, korzystnie od 180°C do 185°C.The subject of the application is a PLA foil with biostatic and bactericidal properties, characterized by the fact that it contains from 0.02% to 5.0% by weight of tar. The application also covers a method for the preparation of PLA films with biostatic and bactericidal properties, which is characterized in that the PLA granules are dissolved in chloroform in a ratio of 50: 1 to 50: 2 chloroform: PLA and mixed for at least 0.5 hours, and then while stirring constantly, adds a plasticizer, preferably polycarbonate, in an amount from 1.5 to 2 times the amount of PLA, and then adds from 0.02% to 5% of tar in relation to the total weight of the honeysuckle, preferably birch tar, and most preferably birch bark, and then it is poured onto a limited flat surface, taking from 0.3 to 0.5 m2 of area per 1 kg of the solution, and the solvent is evaporated off, and the foil sheet obtained is dried at room temperature for 24 to 48 hours. The PLA film preparation method is characterized in that the PLA granulate is mixed with tar to obtain a mixture with a concentration in the range of 0.02% to 5.0% by weight of tar, preferably 0.1% to 2.0% by weight of tar, and then subjected to flat film extrusion in a single or twin screw extruder, preferably co-rotating at a temperature from 150 ° C to 260 ° C, preferably from 180 ° C to 185 ° C.

PL433979A 2020-05-15 2020-05-15 Bactericidal polylactide film and method of its preparation PL433979A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL433979A PL433979A1 (en) 2020-05-15 2020-05-15 Bactericidal polylactide film and method of its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL433979A PL433979A1 (en) 2020-05-15 2020-05-15 Bactericidal polylactide film and method of its preparation

Publications (1)

Publication Number Publication Date
PL433979A1 true PL433979A1 (en) 2021-11-22

Family

ID=78719731

Family Applications (1)

Application Number Title Priority Date Filing Date
PL433979A PL433979A1 (en) 2020-05-15 2020-05-15 Bactericidal polylactide film and method of its preparation

Country Status (1)

Country Link
PL (1) PL433979A1 (en)

Similar Documents

Publication Publication Date Title
EA200800697A1 (en) METHOD AND DEVICE FOR GRANULATION OF BIOMATERIAL COMPOSITES
DE60019853D1 (en) Process for producing ethylene-vinyl alcohol copolymer resin, process for producing pellets and resin pellets
DE1470792A1 (en) Process for the production of films from amylose-containing material
BR0205964A (en) Liquid Ester Composition and, Polymeric Composition
DE4321627A1 (en) Process for the production of extrudates using biopolymeric and mineral raw materials
PL433979A1 (en) Bactericidal polylactide film and method of its preparation
Wu et al. Preparation and characterization of biodegradable trilayer films based on starch and polyester
FI4021946T3 (en) Cellulose pretreatment
Shaikh et al. Novel 1, 3, 4‐Oxadiazole Derivatives of Dihydropyrimidinones: Synthesis, Anti‐Inflammatory, Anthelmintic, and Antibacterial Activity Evaluation
US8507588B2 (en) PHBV/ground bone meal and pumice powder engineered biobased composite materials for construction
Chiloeches et al. Antibacterial and compostable polymers derived from biobased itaconic acid as environmentally friendly additives for biopolymers
Julinová et al. Utilization of waste lignin and hydrolysate from chromium tanned waste in blends of hot-melt extruded PVA-starch
CN102453314A (en) Antibacterial mouldproof biaxially oriented polylactic film and preparation method thereof
CN116285266A (en) Biological full-degradation antibacterial mobile phone protective film and preparation method thereof
Hajinezhad et al. Antimicrobial, mechanical, and physicochemical properties of ethylene vinyl alcohol (EVOH) extruded films blended with propolis
DE2451873A1 (en) METHOD OF PRODUCING AMINO AND PHENOPLASTIC COMPRESSION COMPOUNDS USING A THIN FILM EVAPORATOR OR A ROLLER DRYER
RU2012104754A (en) COMPOSITIONS OF POLYPHENYL SULPHONE AND POLYTETRAFLUORETHYLENE AND THEIR APPLICATION
CN104262750A (en) Anti-bacterial polymer material and preparation method thereof
CN105670118B (en) The film masterbatch and its production method of a kind of degradable antibacterial
KR880006120A (en) Calcium hypochlorite composition and preparation method thereof
Sen et al. Effect of Compositions and Ageing on Mechanical and Barrier Properties of Starch Based Biodegradable Films
CN105084853A (en) Green insulation waterproof coating
CN109135093A (en) Anion stone plastic wall board
CN106497022A (en) A kind of preparation method of the extraordinary synthetic paper with absorption benzene function
US10117447B1 (en) Extrusion of high density hydroxypropylmethylcellulose edible flexible gels