Come fare la glicerina in casa - Fai da Te Mania Leggi Sicuramente tutti avrete sentito parlare della glicerina, un composto liquido vischioso impiegato in vari settori dell'industria cosmetica. La possiamo trovare nelle creme idratanti, oli e saponi. A differenza di quello che si può pensare, la glicerina esercita un'azione molto delicata sulla pelle rendendola così adatta alle pelli più sensibili. In questa guida vediamo come fare per realizzare la glicerina in casa. Foto: ladymarta90.altervista.org Assicurati di avere a portata di mano: Olio di cocco Olio d'oliva Candeggina Sale fino Guanti in gomma Cucchiaio di legno Occhiali Mascherina 1 Vediamo in sintesi cos'è la glicerina. 2 Esistono due metodi per ricavare la glicerina a casa propria: il primo consiste nell'ottenerla sciogliendo saponi che a loro volta la contengono, ma questo purtroppo è un procedimento molto lungo e laborioso. Continua la lettura Leggi Vediamo come preparare la glicerina vegetale. Come levigare le finestre in legno Come rivestire le piastrelle con la resina
Livernon. Un broyeur à pédales pour faire du BRF - Lot Jacky Dupéty a découvert le bois raméal fragmenté (BRF) lors de la canicule de 2003, en recherchant une technique biologique permettant des économies d'eau dans son potager. Après s'être procuré des études agronomiques québécoises et belges, mises en application sur le causse, Jacky a constaté que le BRF n'était pas un banal paillage, mais une technique permettant un enrichissement naturel du sol, évitant également des traitements phytosanitaires. Il y a cinq ans, Jacky Dupéty créait, avec quelques amis, l'association pour la valorisation et l'expérimentation du bois raméal fragmenté (BRF). Lors de son assemblée générale, cette association a élu son conseil d'administration et son bureau. Ce fut l'occasion de faire part aux 40 adhérents présents des sollicitations, auprès de l'association, d'organismes professionnels agricoles pour leurs formateurs et de demandes de jardiniers locaux.
poliestere lineare prodotto in natura da una fermentazione batterica di zucchero barbabietola canna da zucchero Carton de pizza et papier aluminium : le four solaire made in USA Les fours solaires sont une alternative aux fours traditionnels. Ils sont souvent utilisés dans les zones les plus pauvres en raison de l’absence d’électricité et de gaz qui sont, généralement, les sources d’alimentation des fours. Grâce aux rayons solaires et à l’utilisation d’une boîte revêtue de papier aluminium, il est possible de cuire n’importe quels aliments tout en respectant l’environnement. Dans ce cas, pourquoi ne pas en diffuser l’utilisation au vu des bons résultats obtenus ? Deux étudiants américains, Edward R. Murrow et James Madison, ont mis sur pieds une sympathique exposition d’inspiration écologique en face de l’Union Square Greenmarket, à New York. SUR LE MÊME THÈME : Acheter en vrac, un geste vertueux pour le porte-monnaie comme pour la planète En se servant de boîtes en carton de pizza et de papier aluminium, ils ont créé de véritables petits fours solaires. A LIRE AUSSI : Agartala, première ville solaire d’Inde
polymers | Archive Luisa Pereira and Manuela Donoso collaborated on this musical instrument made of elastics and light. On the first version they used regular elastics coated with conductive ink and on the final version opted for stretch ... In this video Becky Stern from Adafruit shows how to make a simple circuit on a transparent sheet of plastic coated with indium tin ... Heart On Your Sleeve from Scott Garner on Vimeo. Endlighten is an acrylic sheet infused with colorless light diffusing particles. While regular acrylic only diffuses light around the edges, ... light diffusing acrylic Materials 101, Polymers Shape memory polymer strips (image by Inventables) Heat Reactive Materials Heat reactive materials change state, shape and/or color when exposed to temperatures above ambient. heat reactive polymers Empa's EAP propelled airship with Dielectric Elastomer (DE) actuators as ... EAP propelled airship Polymers a few videos about polymorph.. Polymers, Techniques featured video :: EAP-Blimp
bioplastic Experiment Experiment home Objective The objective of the “Bioplastics Experiment” is to show the students the advantages and disadvantages of running a fractional factorial. The students run a 2^k-1 fractional factorial to determine which levels of bioplastic ingredients / cooking method produce the best quality bioplastic. The students break up into four groups. Each group selects a different bioplastic; Milk plastic, Stovetop corn plastic, Microwave corn plastic and Flubber. Equipment - per group Making bioplastics requires various kitchen supplies and some perishable items. 1 cookie sheet (set of 3 for $16.99 , Target) 1 mixing spoon ($1.99, Target) 1 set of measuring cups (set of measuring cups and spoons $9.99, Target) 1 set of measuring spoons (see above) 1 roll of aluminum foil ($3.59, Kroger) Procedure Assign the following tasks to different team members within your team; 1) Measurer (Measures out the ingredients and pours them in the containers.), 2) Mixer/cooker (Mixes the ingredients.
New applications: PLA-wood fibre composites (Published on December 2007 – JEC Magazine #37) Following the presentation “New applications in the woodplastics composites sector: the French example” by the author at the Biocomposites Forum of the JEC Composites Show 2007, new developments, applications and products are now available. Apollor and Rettenmaier have been partnering to develop starch-wood fibre composites (Figure 1). Starch-wood fibre composites Apollor is a technological resource centre that specializes in polymer and composite materials. 80% starch and 20% wood fibres, 70% starch and 30% wood fibres, 60% starch and 40% wood fibres. With a wood-fibre reinforcement, the Young’s modulus of the mix containing 40% wood fibres is multiplied by 6.5 (Figure 2). These compounds (starch + wood fibres) remain 100% compostable and are derived from natural resources. Plant-based polyester-wood fibre compound Using agricultural and forest resources to create bioproducts offers significant environmental advantages.
Make Cornstarch Plastic | Sail On! Experiment 2 Materials: 7 tablespoons of water 1 tablespoon of starch 2.5 teaspoon of vinegar 1.5 teaspoon of glycerin .5 teaspoon of baking soda Procedure l First, add one-half teaspoon of baking soda, then two tablespoons of water into a separate, small container, then set it aside for later. l Add seven tablespoons of cold water into a pan, then about one tablespoon of starch. Turn the burner to low heat, and then stir the mixture. Add the baking soda and water mixture, then let everything in the pan boil for 10 minutes. Get a sheet of aluminum foil so that you can carefully pour the gooey substance onto it for drying. Let the potato substance dry for one day in a sunny room, or place it into the oven for faster results. Mold or shape your newly created plastic. (from Like this: Like Loading...
Il Mio Sapone > Fare il Sapone a Freddo Il metodo a freddo è il sistema più semplice e immediato per preparare il sapone. In questa tecnica si sfrutta il calore naturale, prodotto dalla reazione tra la soda caustica e i grassi, per portare a termine la saponificazione. Questo calore va dunque controllato e soprattutto mantenuto il più a lungo possibile perchè possa svolgere il suo compito.Per ottenere un buon sapone a freddo è necessario: 1.Pesare con assoluta precisione gli ingredienti; anche la minima differenza può rovinare tutto; 2.Miscelare grassi e soluzione caustica alla temperatura ottimale; 3.Isolare gli stampi nelle prime 24 ore perchè il calore della reazione chimica non si disperda. Ingredienti fondamentali: - 1 chilo di olio di oliva - 128 grammi di soda caustica (NaOH) - 300 grammi di acqua Ingredienti facoltativi: - 10 ml di olio essenziale di lavanda - 1 cucchiaio di farina di riso - 1 cucchiaio di fiori secchi di lavanda tritati Fase 6: il nastroQuesto è un punto cruciale per tutti i saponai!