WO2019198104A1

WO2019198104A1 - Adhesive incorporating non-biodegradable cellulosic waste

Info

Publication number: WO2019198104A1
Application number: PCT/IN2019/050297
Authority: WO
Inventors: Anmol Sanjiv JAISWAL; Vaishnavi Harish REWATKAR; Vivek Pralhadrao BHANGE
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-12
Filing date: 2019-04-10
Publication date: 2019-10-17
Anticipated expiration: 2020-10-12

Abstract

Present invention relates to an adhesive made from non-biodegradable cellulosic waste. The object of the invention presented is to enhance the adhesive property. The proposed novel mixture comprises a cellulosic waste generated from Cigarette filter, a solvent for degradation of the waste i.e., Acetone and some additives used to increase the adhesive properties of the product obtained. The slurry obtained from degrading the cigarette filter (butts) with the help of acetone was able to encounter the standard properties of glue. To enhance the adhesive property, some additives are added such as animal glue. Hence the resultant mix is found to adhere different materials such as paper, cardboard, wood and has a capacity to substitute the commercial glue.

Description

TITLE OF INVENTION

Adhesive incorporating non-biodegradable cellulosic waste

PREAMBLE TO THE DESCRIPTION

COMPLETE

Following specification particularly describes the invention and the manner in which it is to be performed. DESCRIPTION

Technical field of invention:

[001] Present invention in general relates to an adhesive which contains non - biodegradable cellulosic waste like degrading cigarette filter (butts), solvent like acetone for degradation and some additives for enhancement of property of the adhesive.

Prior art:

[002] With the advent of throw-away products, the final disposal of such products has become a problem to which considerable attention need be given.

[003] Every year over 6 trillion cigarettes are manufactured globally. Approximately 99 percent have a filter tip. After the cigarette is smoked, the used filter is called a butt and is thrown out. When littered, cigarette butts often take years to break down.

[004] Most filters are made using cellulose acetate fibers. More than 2 billion pounds of cellulose acetate is produced every year to meet the world demand for filters. To make it, acetic anhydride is added to cellulose fibers made from wood or cotton. The reaction creates a type of plastic that provides a stronger, more rigid filter .Whatever their direct health impact on or benefit to smokers, cigarette filters pose a serious litter and toxic waste disposal problem. Cellulose acetate is photodegradable but not bio-degradable. Although ultraviolet rays from the sun will eventually break the filter into smaller pieces under ideal environmental conditions, the source material never disappears; it essentially becomes diluted in water or soil. [005] While the environmental impact of a single disposed cigarette filter is minimal, there were 1.35 trillion filtered cigarettes manufactured in the United States in 2007 and of these, more than 360 billion were consumed. About 680,000 tons of cellulose acetate was used in the production of these filtered cigarettes. With 5.6 trillion filtered cigarettes consumed worldwide in 2002 and nine trillion expected by 2025, the global environmental burden of cigarette filters is also significant. It is estimated that 1.69 billion pounds (845,000 tons) of butts wind up as litter worldwide per year.

[006] Most attention has been given to the cigarette butt waste problem because of the filters that end up on beaches. The annual Ocean Conservancy’s International Coastal Cleanup (ICC) reports that‘cigarette butts have been the single most recovered item since collections began’.

[007] Although various attempts are made before, for providing various means for recovery of cigarette butts from surroundings, but disposal and recycling of these butts is a serious issue which is still mostly not catered. Cigarette butts has been used and recycled in numerous ways but not as adhesives; it possess some properties of adhesion which can encounter the properties of industrial glue or synthetic adhesives.

[008] Attempts are made for preparing the adhesive from various waste products but not cigarette butts, therefore some of the related method for the preparation of adhesive are discussed below.

[009] CN103275652A discloses method for preparing adhesive by taking waste polystyrene foam and wood powder as raw materials. The invention discloses a method for preparing an adhesive by taking waste polystyrene foam and wood powder as raw materials. The method is characterized by comprising the following steps of adding the waste polystyrene foam to toluene, stirring, allowing the waste polystyrene foam to dissolve, adding the wood powder and kaolin to the solution, continuing to stir, discharging, packaging and obtaining the adhesive.

[0010] CN103980858A discloses biomass-based adhesive prepared by utilizing laccase activated cellulosic ethanol lignin, and method thereof. The invention relates to a biomass-based adhesive prepared by utilizing laccase activated cellulosic ethanol lignin, and a method thereof. The purposes lie in that aiming at the practical problems that an artificial board is high in formaldehyde emission, the garbage caused after the production of cellulosic ethanol is wasteful, cellulosic ethanol lignin is treated by adopting laccase activating technology, and the biomass-based wood adhesive is produced by taking the cellulosic ethanol lignin as a biomass base; when being used for manufacturing the artificial board with ultralow formaldehyde emission, the biomass-based adhesive is free from pollution a human body and an environment, and the high-efficiency utilization of garbage lignin caused after the production of cellulosic ethanol can be realized. The method is characterized by comprising the following steps: selecting and mixing the raw materials, regulating pH value, reacting for 4-7 hours at the temperature of 30-35DEG C, to obtain the biomass-based adhesive which comprises the following compositions: cellulosic ethanol lignin, laccase, tween 80, talc powder, water and an acetic acid-sodium acetate buffer solution.

[0011] CN104628970B discloses a method for preparing industrial gelatin skin collagen hydrolyzate group waste paper sizing agent. A method for preparing industrial gelatin skin collagen hydrolyzate group waste paper sizing agent, industrial gelatin dissolved in distilled water, and adding the enzyme hydrolysis reaction of the collagen hydrolyzate; acid anhydride species dissolved in distilled water, dropwise to the resulting collagen hydrolyzate, pre-modified collagen, collagen prepared by reacting an acid anhydride ester; was added a mixture of soft monomers and hard monomers in the resulting collagen anhydride ester, initiator added dropwise, with hard monomer and soft monomer anhydride graft- modified collagen ester, prepared by reacting the collagen-yl white paper sizing agent emulsion of the present invention to achieve a novel paper sizing agent based on gelatin waste paper industry collagen hydrolyzate synthesis, i.e. two kinds of pre-modified collagen ester monomers are grafted anhydride.

[0012] CN102516909A disclose preparation method of pulping waste liquid adhesive. The invention provides a preparation method of a pulping waste liquid adhesive and belongs to the technical field of adhesives. The preparation method comprises the following steps of: firstly carrying out phenolic modification on pulping waste liquid at a temperature of 90-140 DEG C under the action of a basic catalyst and phenol by adopting a normal-pressure or high-pressure heating method; and then adding aldehyde and the basic catalyst into the pulping waste liquid subjected to the phenolic modification, reacting for 1.0-3.0 hours at a temperature of 55-70 DEG C under the condition of continuous agitation, adding urea accounting for 0.2-2.0 percent of the total weight of the phenol, aldehyde and the pulping waste liquid, raising the temperature to 80-95 DEG C, continuously reacting for 0.5-3.0 hours, stop heating when the viscosity conforms to the requirements, cooling to below 40 DEG C and discharging. The invention has the beneficial effects that compared with a traditional phenolic resin adhesive, the prepared adhesive has the characteristics of lower production cost, low free phenol and free aldehyde content and environment friendliness; and in the preparation method, the pulping waste liquid is fully utilized, the pollution caused by the waste liquid to the environment is solved, and the resource utilization of the pulping waste liquid is realized.

[0013] Yet in the art, no such method is developed earlier for making the adhesive using non -biodegradable cellulosic waste. Thus to prevent the limitations there is need to develop an improved and efficient way for disposal and recycling of the waste product like cigarette butts and form an usable product such as adhesive. Hence the present invention provides an adhesive made from non-biodegradable cellulosic waste. Object of the invention:

[0014] Primary object of the present invention is to provide an adhesive which contains non -biodegradable cellulosic waste like degrading cigarette filter (butts), solvent like Acetone for degradation and some additives (Animal Glue).

[0015] Another object of the present invention is to enhance the property of the adhesive.

[0016] Yet another object of the present invention is to provide a solution for waste disposal of non-biodegradable cellulosic waste like cigarette filter.

[0017] Other objects, features and advantages will become apparent from detail description and appended claims to those skilled in art.

Summary of the invention:

[0018] Accordingly following invention provides an adhesive made from non- biodegradable cellulosic waste. The proposed novel mixture for the purpose comprises of a cellulosic waste generated from cigarette filter, a solvent for degradation of the waste i.e. acetone and some additives that are used to increase the adhesive properties of the product obtained. Thus for making the proposed product firstly collect the butts, peel out the cover of butts and grind it into small fibers. After washing the butts, boil the fibers so as to remove the traces of nicotine, tar and other harmful chemicals trapped in the filter. After cleaning, sundry the butts and store it in a clean and dry place. The solvent used can be taken in different combinations and concentration. The additive animal glue is added to the solution, stir the mixture for minimum 15-20 minutes and keep this mixture undisturbed for period of 20days. Before using the solvent containing additive, shake the container/bottle properly and after 20 days extract the solvent using filter cloth. Filtered solution is used in the preparation of adhesive and the un dissolved additive is further recycled in solvent mix preparation. Thereafter for preparation of adhesive clean and dried cigarette butts are taken and weighed, an amount of solvent is measured and collected in a beaker/container. Cigarette butts are added to the solvent which degraded the synthetic polymer (Cellulose Acetate). The slurry formed is continuously stirred using a glass rod so as to prevent lump formation. After stirring the slurry, it is applied on different cellulosic materials to check its adhesive properties.

Detailed description of the invention:

[0019] The present invention provides an adhesive made from non-biodegradable cellulosic waste. The proposed novel mixture for the purpose incorporates a cellulosic waste generated from cigarette filter, a solvent for degradation of the waste i.e. acetone and some additives (Animal Glue) that are used to increase the adhesive properties of the product obtained.

[0020] In the proposed method the slurry obtained from degrading the cigarette filter (butts) with the help of acetone is able to encounter the standard properties of glue. To enhance the adhesive property, some additives are added such as animal glue. Hence the resultant mix is found to adhere different materials such as paper, cardboard, wood, metal, marble and acrylic sheets and has a capacity to substitute the commercial glue.

[0021] The preparationof an adhesive from non-biodegradable cellulosic waste involves following steps-

[0022] Step 1: Cleaning of Cigarette Butts

Collect the butts from the available sources. After collection peel out the cover of butts and grind it into small fibers. Wash the butts thoroughly under normal running water for 2-4 times. After washing the butts, boil the fibers so as to remove the traces of nicotine, tar and other harmful chemicals trapped in the filter. After cleaning, sundry the butts and store it in a clean and dry place.

[0023] Step 2: Preparation of Solvent Mix

The solvent used for the degradation of cigarette waste can be taken in different combinations and concentration. The solvent can be a single or a binary mixture. The additive -“Animal glue” is added to the solution to enhance the stickiness of mixture (w/v). After addition, stir the mixture for minimum 15-20 minutes using mechanical stirrer or shaft. Keep this mixture undisturbed for period of 20days. Before using the solvent containing additive, shake the container/bottle properly and after 20 days extract the solvent using filter cloth. Filtered solution is used in the preparation of adhesive and the un dissolved additive is further recycled in solvent mix preparation.

[0024] Step 3: Preparation of Adhesive

Clean and dried cigarette butts are taken and weighed according to different concentrations. An amount of solvent is measured and collected in a beaker/container. Cigarette butts are added to the solvent which degraded the synthetic polymer (Cellulose Acetate). The slurry formed is continuously stirred using a glass rod so as to prevent lump formation. After stirring the slurry, it is applied on different cellulosic materials to check its adhesive properties.

[0025] In the preferred embodiment various tests are performed on the optimized concentration obtained to check the performance of an adhesive made out of cigarette butts.

[0026] After trial and error method, the optimized results in particular concentration is-

Additive added in solvent = 42-68%

Cigarette waste added in solvent mixture = 12-28%.

Solvent (Acetone) = 1 Liter. [0027] Animal glue (Saras) is a protein derived from the simple hydrolysis of collagen, which is a principal protein constituent of animal hide. An interesting property of animal glue solution is that glue is transformed from a liquid to a gel state on cooling and reverting to a liquid on reheating. This property is of primary importance in many adhesive applications. Animal glue is commercially available in a number of forms including the dry granulated products for use as hot glues, cold liquid glues for immediate use and a wide selection of composition glues in cake or jelly form. Animal adhesives are of various kinds derived from skins and bones of the animals. The form is known as Hide glue and the latter as Bone glue. Fish glue are derived from the skin of various fishes, casein glue is derived from casein obtained from milk of various animals

[0028] Additional advantages and modification will readily occur to those skilled in art. Therefore, the invention in its broader aspect is not limited to specific details and representative embodiments shown and described herein. Accordingly various modifications may be made without departing from the spirit or scope of the general invention concept as defined by the appended claims and their equivalents.

Claims

CLAIMS We claim: -

1. Adhesive made from non-biodegradable cellulosic waste comprises of; cellulosic waste generated from cigarette filter 12-28%, acetone (1 lit) as a solvent for degradation of the waste and additives (Animal Glue) 42- 68% that are used to increase the adhesive properties of the product obtained, characterized in that; method of preparation of comprises of following steps; collected buds cover is peel out and grind into small fibers, wash the butts thoroughly under normal running water for 2-4 times; after washing the butts, fibers are boiled, after cleaning, sundry the butts and store it in a clean and dry place; acetone is mixed with animal glue which is added to the solution to enhance the stickiness of mixture (w/v), after addition, stir the mixture for minimum 15-20 minutes using mechanical stirrer or shaft, keep this mixture undisturbed for period of 20 days, before using the solvent containing additive, shake the container/ bottle properly and after 20 days extract the solvent using filter cloth; filtered solvent is used and the un dissolved animal glue is further recycled; clean and dried cigarette butts are taken and weighed according to different concentrations; an amount of solvent is measured and collected in a beaker/container;

2. Accordingly as claimed in claim 1 wherein said cigarette butts are added to the solvent which degraded the synthetic polymer (Cellulose Acetate) and the slurry formed is continuously stirred using a glass rod so as to prevent lump formation after stirring the slurry, it is applied on different cellulosic materials to check its adhesive properties.