Essays about: "free formaldehyde"

Found 5 essays containing the words free formaldehyde.

1. 1. Study of a valorisation process for biomass industrial waste involving acid cooking and enzymatic hydrolysis

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Nicolas Brunet; [2020]
   Keywords : ;

   Abstract : Lignocellulosic biomass has potential to chip in the chemical and biofuels supplies in future societies,even though lignocellulose is a recalcitrant structure that has to be treated in several steps. After theirproper life cycle, wood-derived materials such as particleboards have few outcomes today apart fromenergy recovery for heat production. READ MORE

3. 2. Study of a valorisation process forbiomass industrial waste involvingacid cooking and enzymatichydrolysis

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Nicolas Brunet; [2020]
   Keywords : ;

   Abstract : Lignocellulosic biomass has potential to chip in the chemical and biofuels supplies in future societies,even though lignocellulose is a recalcitrant structure that has to be treated in several steps. After theirproper life cycle, wood-derived materials such as particleboards have few outcomes today apart fromenergy recovery for heat production. READ MORE

4. 3. A method of chemical aftertreatment for the reduction of free formaldehyde release of a durable flame retardant finished cotton fabric

   University essay from Akademin för textil, teknik och ekonomi

   Author : Saima Saleem; [2015]
   Keywords : Aftertreatment; flame retardant; free formaldehyde; tetrakis hydroxymethyl phosphonium chloride THPC urea pre-condensate; ammonia curing; sodium metabisulfite; resorcinol; diethylene glycol; boric acid; curing; oxidation;

   Abstract : This thesis aims at developing a method of chemical aftertreatment for reduction of free formaldehyde release of a tetrakis (hydroxymethyl) phosphonium chloride (THPC) urea precondensate, ammonia cured durable flame retardant finished cotton fabric, by preventing the formation of free formaldehyde. Formaldehyde is toxic and carcinogenic. READ MORE

5. 4. Developing Formaldehyde Free Flame Retardant for Cellulose

   University essay from Högskolan i Borås/Institutionen Textilhögskolan

   Author : MD.Abdul Hannan; [2011]
   Keywords : cotton cellulose; organophosphorus flame retardant; acetal linkage; low temperature pyrolysis; THC; HRR; char residue; LOI;

   Abstract : Two organophosphorus compounds, namely diethyloxymethyl-9-oxa-10- phosphaphenanthrene-10-oxide (DOPAC) and diethyl (2,2-diethoxyethyl) phosphonate (DPAC) were applied on cotton cellulose to impart non-carcinogenic and durable (in alkaline washing) flame retardant property to it. Some acidic catalysts, sodium dihydrogen phosphate (NaH2PO4), ammonium dihydrogen phosphate (NH4H2PO4) and phosphoric acid (H3PO4), were successfully used to settle acetal linkage between cellulose and flame retardant (FR) compound. READ MORE

6. 5. Scanning and evaluation of crease resistant resins

   University essay from Högskolan i Borås/Institutionen Textilhögskolan

   Author : Johanna Strömbom; Julia Kalholm; [2011]
   Keywords : crease resistant finish; easy care resin; dmdheu resin; formaldehyde free resin; IKEA; bed linen; formaldehyde;

   Abstract : In today’s society, textile producers and manufacturers strive to use as little harmful chemicals as possible in their finishing of textiles. Though, producing a completely chemical free fabric is nearly impossible, many companies work actively to scan and evaluate alternatives to chemical substances that have a negative effect on the environment and the human health. READ MORE