Katie lubi latex

Katie lubi latex




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Katie lubi latex

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By Nicol Natale Published: Feb 19, 2021
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It’s a popular natural option with many benefits—but there are some downsides to keep in mind, too.
Tons of women experience vaginal dryness, research shows, but that doesn’t mean your sex life has to suffer. Whether you’re feeling a bit dry down there or simply want to make sex feel even better , using a personal lubricant can provide the moisture you need so you can have the sex you deserve—and we all deserve great sex. Natural lubrication in women can diminish for a number of reasons, from taking certain medications (like birth control or antihistamines) to menopause , and using lube is a simple way to make sex feel more comfortable.
While there are tons of lube options on the market, many people prefer to go the natural route in order to avoid exposure to certain ingredients like parabens, says Alyssa Dweck, M.D. , an OB/GYN in New York and co-author of The Complete A to Z for Your V .
But you can’t just grab anything wet—some natural solutions are better than others. For instance, plain water isn’t a good lubricant because it can wash away your body’s natural lubricant, leading to dryness, and items with a petroleum base (like Crisco) can increase your chances of infection.
Enter coconut oil , already a multi-tasking product (it’s versatile for cooking and serves as a great natural moisturizer.) It’s probably the most popular natural lube option, Dr. Dweck says. But how does it stack up against the OTC lubes out there? Is it safe—and is it effective? Here’s what you should know about using coconut oil as lube.
In a nutshell: Coconut oil is generally a safe option to use as lube. “ Studies have shown that coconut oil is clinically proven for safe and effective use as a moisturizer. Its moisturizing properties may make the product an effective lube and allow for longer-lasting intercourse,” says Jessica Shepherd, M.D. , an OB/GYN at the University of Illinois at Chicago and advisor with Happy V .
Coconut oil aids with coating the vaginal tissue to reduce water loss, while soothing and hydrating the vagina. “It can help vaginal dryness, alleviate friction during sex, and minimize tears,” Dr. Shepherd says.
Two key things to know if you’re going to try coconut oil as lube: First, opt for unrefined coconut oil —it has less processing and bleaching, Dr. Shepherd says.
Then, you’ll definitely want to reach from a clean jar, says Robert Kiltz, M.D. , a diplomat of the American Board of Obstetrics and Gynecology and author of The Fertile Feast . “Most standard kitchen coconut oil comes in a big jar; you wouldn’t want to dig your dirty fingers in there time and time again over the course of six months or even years. This could lead to some bacterial growth and infections,” he says. So, use a spoon to scoop it out (and no matter what: wash your hands!).
If you’re prone to yeast infections , then it’s a good idea to steer clear of using coconut oil as lube. Dr. Kiltz says that the coconut oil’s antimicrobial properties as well as potential contamination can increase the rise of infections by disrupting the natural microbiome of the vagina. The normal pH of the vagina is acidic, and coconut oil can make it an alkaline environment, resulting in a disturbance of bacteria that can also lead to issues like bacterial vaginosis .
“The other limitation with any oil-based lubricant is that they are not considered condom-compatible, so if you are relying on a condom to protect you against STDs or pregnancy , you really can’t rely on it 100% when using an oil. Latex condoms may become compromised,” Dr. Dweck explains, adding that coconut oil can degrade latex.
And, although rare, there is a risk of allergic reaction when using coconut oil as lube, Dr. Kiltz says. If you’ve never used coconut oil before, apply a small amount to your wrist and take note of any changes, such as a skin rash , before using it as lube.
Lastly, coconut oil can be quite messy, staining sheets and clothing, so you’ll want to be cautious when using it during sex.
Coconut oil may not be your thing, but if you want to stay the natural route, you have some options, like olive or avocado oil. Make sure the olive oil is virgin and first pressed because “other oils are more processed and often involve added chemicals to further extract the oils,” which can irritate the vagina, Dr. Kiltz says.
You can also use pure aloe vera —just make sure it’s free of the cooling agents and additives that are sometimes added to aloe vera products to treat sunburns, he says. “The vagina is a mucosal membrane, unlike the skin,” Dr. Kiltz explains. The skin is a much stronger barrier and is less sensitive to chemicals in aloe vera products designed for sunburn that, if used as lube, could disrupt the vaginal microbiome, he says.
For OTC options, Dr. Dweck recommends silicone lubricants such as Uberlube . “Silicone lasts a long time and it’s not water-soluble, so you can use it in water,” she says, adding that silicone lubricants are also condom-compatible. Water-based lubes are also a great option because they’re “simple, cheap, and recognizable,” she adds, but just be mindful that they can lead to more dryness over time. You should scan the label to ensure there are no ingredients that you are sensitive to.
To combat dryness in general, you can also try vaginal moisturizers (like Replens ), which are “used more on a chronic basis, like every day or every other day, to help prevent dryness,” Dr. Dweck says. For those going through menopause , she says vaginal estrogens are great for those experiencing dryness, as they add moisture and can also be used as a lubricant during sex. Vaginal estrogens are used to treat dryness, itching, painful urination , and the sudden need to urinate in women who are experiencing menopause, but you’ll need a doctor’s prescription to get them.
Additional reporting by Alisa Hrustic
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Currently an assistant editor at Prevention.com, Nicol is a Manhattan-based journalist who specializes in health, wellness, beauty, fashion, business, and lifestyle. Her work has appeared in Women’s Health, Good Housekeeping, Woman’s Day, Houston Chronicle, Business Insider, INSIDER, Everyday Health, and more. When Nicol isn't writing, she loves trying new workout classes, testing out the latest face mask, and traveling. Follow her on Instagram for the latest on health, wellness, and lifestyle.
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Among the renewable resource materials, cashew nut shell liquid (CNSL) is considered as an important starting material due to its unique structural features, abundant availability and low cost. A large number of chemicals and products have been developed starting from CNSL by taking advantage of the three reactive sites, namely, phenolic hydroxyl, aromatic ring and unsaturation(s) in the alkenyl side chain. Increasing attention is paid to promising cardanol-based products that could be have potential interest in industry, such as epoxy and acrylic monomers, plasticizers and surfactants.
... Cardanol is an organic compound that typically belongs to the phenolic group and can be extracted from cashew nut shell liquid. 59 Commonly, cardanol is also associated with similar phenolic compounds, which can also be used as a starting material for polyols, and hence, together these four compounds (anacardic acid, cardanol, cardol, and 2-methyl cardol) are termed as CNSL, as shown in Fig. 1. 60 During the extraction and refining of these CNSL molecules from cashew nut shell, the attached chain may change their structure. The carboxylic acid group from anacardic acid detaches with application of heat, and at the end, the content of cardanol is at its maximum. ...
... Further, the hydrogenation can be done using a suitable catalyst to convert the unsaturated side chains to saturated chains. 59 The ring can also be saturated by choosing a suitable catalyst. The hydroxyl group thus derived is suitable for reaction with diisocyanates to produce the resultant polyurethane foam. ...
... Alternatively, CNSL can also be halogenated using chlorination to improve its reactivity during epoxidation process. 59, 60 Besides, sulfonation, halogenation, nitration, and etherification with ethylene oxide can also be carried out with cardanol to get a monomer for different polymer synthesis methods. 59 Lamaire et al. 63 manufactured 3-pentadecyl cyclohexanone from CSNL which can serve as an important starting material for polymer industry as a replacement to petro-based cyclohexanone. ...
Polyols are basically compounds containing multiple reactive hydroxyl groups and one of the major constituting elements in making polyurethane and polyurethane foam. Traditionally, the polyols are obtained from fossil fuels. The limited availability of fossil fuels and exponentially increasing demand of polymers including PUs enforce the scientific society to explore the possible alternate sources for obtaining polyols. In order to reduce the dependency of polyols on fossil fuels, renewable polyols have gained significant importance over the last few decades. Various biomass and renewable sources have been explored to obtain the polyols. The present review, which is a continuation of our earlier work, highlights various other starting raw materials of plant origin for obtaining the renewable polyols and corresponding methodologies. The review also attempts to make a strong connection between the starting material for making polyols, chemical transformations employed, and the properties of polyols as well as final PUs. The comprehensive analysis of renewable polyols and corresponding PUs will help researchers in making commercially viable renewable polyols to fulfill the increasing demand.
... Cardanol is a commercially available bio-based phenol that comes from cashew nut shell liquid (CNSL) [1, 2]. CNSL is extracted from the fruit of cashew nut, which is a waste from the food industry. ...
... Nowadays, the world production of cardanol almost reaches one million ton per years [5]. Cardanol is composed of a phenol group with an unsaturated 15-carbon side chain which can exhibit until three double bonds in various percentages (5-8 % for saturated chains, 48-49 % for mono-olefinic chains, 16-17 % of diolefinic chains, 29-30 % of triolefinic chains) [1, [6][7][8][9]. ...
... Then, Fig. 6 demonstrates the curing of alkyd resins through the C--C of alkyl chains of cardanol [31]. Indeed, the disappearance of the characteristic peak of olefinic C-H (C-H sp 2 stretching vibration) of cardanol at 3003 cm − 1 in all the alkyd resin films containing cardanol is shown in Fig. 6. 1 H HRMAS experiments (SI Figs. 7,8,9,10) were also performed to confirm the crosslinking of alkyd resins through the C--C double bond of cardanol. ...
Novel alkyd resins have been synthetized with mono- and di- functional cardanol monomers. This study has demonstrated that those monomers could replace some of the monomers used in alkyd resins, which were petrosourced. Indeed, the renewable carbon content have been increased by up to 12 %. The film properties (gloss, adhesion, drying time) have been investigated and the results showed that the introduction of cardanol monomers did not impact the coatings properties except for the color. Furthermore, thermogravimetric analysis has demonstrated that cardanol highly increased the thermal stability of alkyd resins.
... Therefore, cardanol can potentially replace phenol in many applications with equivalent or better property. Some reviews have reported the composition, separation, purification chemical reactions and applications of cardanol [13] [14][15][16]. This comprehensive review deals with various aspects of cardanol as a starting material for preparing various polymer and polymer composites such as benzoxazine resins, phenolic resin, polyurethanes (PUs), epoxy resin, vinyl ester polymers, polyamide and cyanate ester resins. ...
... When the CPR content is 20%, the tensile strength was up to 38.17 MPa from the 30. 13 MPa of the pure carbon fiber composite. ...
... CNSL is readily available and mostly produced in India, Brazil, and East Africa. As the worldwide production of CNSL is more than one million tons per year, it has become one of the largest naturally occurring sources of phenol [134] . CNSL constitutes 18-27 % of the total raw cashew nut weight and is extracted from the nut shell by cold pressing, roasting, or a hot oil bath. ...
... The chemical structure of the pale-yellow liquid cardanol consists of a phenolic structure with long carbon chains with different degree of unsaturation. The percentage of unsaturation on these four meta-alkyl phenols is 8.4 for the saturated chains, 48.5 for the monoolefinic side chain, 16.8 for the diolefinic side chain, and 29.33 for the triolefinic chain [134, 135]. Fig. 6 illustrates the structure of cardanol. ...
Phenolic foams are widely used as insulation materials in construction, transportation, and spacecraft industries due to their flame retardancy, thermal stability, low toxicity, and low smoke generation. However, these foams are typically produced from non‐renewable resources. With increasing environmental pollution, volatility in petrochemical prices, and depletion of petroleum resources, the demand for polymeric materials produced from renewable resources is ever‐increasing. Numerous recent studies have introduced biomass as an alternative resource for petroleum‐based raw materials for producing phenolic foams. In addition to their environmental benefits, bio‐based phenolic foams exhibit properties similar or even superior to traditional phenolic foams. In this review, traditional phenolic foams are discussed. Recent progresses on synthesis of foams from bio‐based resources, modification of the bio‐alternatives, performance enhancements, and comparison with traditional phenolic foams are outlined. Challenges and methods to further improve performance characteristics of bio‐based phenolic foams and their expanding range of applications are highlighted. Recent developments in the synthesis of bio‐substituted phenolic foams and improvements in their mechanical properties are reviewed. The use of various biophenols derived from biomass and their structural modifications are evaluated. Applications of such biophenols as phenol substitutes in the synthesis of resin for foam production and their usage as direct additives in the preparation of foams are discussed.
... Inedible, and not competing with food production, the tonnages of the nutshells are closely linked to that of the edible cashew kernels already produced. The annual world production of cashew nut shells is estimated at around 3M T/year and is located in geographical areas with a tropical climate such as South America (Brazil), Asia (India, Vietnam, etc.) and Africa (Côte d'Ivoire, Benin, Burkina Faso, Tanzania, etc.) [25, 26]. Various extraction methods make it possible to obtain CNSL (pyrolysis [27], solvent extraction [28], screw pressing [29] and supercritical CO 2 extraction [30,31]) with mass yields oscillating between 15 and 30%. ...
... To obtain a better emulsion stability, a mixture of these two surfactants was used and the polymerization afforded a stable latex. According to Caillol et al. [25] , zwitterions derived from cardanol such as surfactant Z-3 could be used in emulsion polymerization for the synthesis of styrene-acrylate latex. Yet the study of such properties was not performed. ...
Surfactants are crystallizing a certain focus for consumer interest, and their market is still expected to grow by 4 to 5% each year. Most of the time these surfactants are of petroleum origin and are not often biodegradable. Cashew Nut Shell Liquid (CNSL) is a promising non-edible renewable resource, directly extracted from the shell of the cashew nut. The interesting structure of CNSL and its components (cardanol, anacardic acid and cardol) lead to the synthesis of biobased surfactants. Indeed, non-ionic, anionic, cationic and zwitterionic surfactants based on CNSL have been reported in the literature. Even now, CNSL is absent or barely mentioned in specialized review or chapters talking about synthetic biobased surfactants. Thus, this review focuses on CNSL as a building block for the synthesis of surfactants. In the first part, it describes and criticizes the synthesis of molecules and in the second part, it compares the efficiency and the properties (CMC, surface tension, kraft temperature, biodegradability) of the obtained products with each other and with commercial ones.
... Cardanol can be used as a natural phenolic resource, directly for polymerization reactions, or as modified polyol in thermosets and other polymeric formulations. It is obtained with a high degree of purity by thermal treatment of CNSL followed by distillation: the decarboxylation of the anacardic acid yields cardanol with around 90% purity (Caillol 2018) . ...
The traditional binder used in mineral wool is phenolic resin that makes mineral wool insulations reliable and efficient. The toxicity and health hazards of phenol and formaldehyde are becoming more and more pressing, and the industrial production needs to focus on safer precursors. Several formulations of bio-based binders for mineral wool have been developed, meeting the challenge of performing equally well as conventional binders. Technical lignins, due to their intrinsic structure and their abundance, are good candidates for future industrial adhesives. Carbohydrates are other class of biomaterials widely used in both research and patent formulations toward mineral wool binders. Proteins and cardanol are still largely unknown precursors, although they have hidden potentials for reliable binder systems. Even if conventional binders are not replaced completely with bio-based alternatives today, a partial use is already a step forward in the right direction – toward future biorefinery-based industries and knowledge-based bioeconomies in general.
... Moreover, cardanol derivatives have been widely described as potential plasticizers [82, 90] . Similar to fatty acids, their unsaturated bonds are usually epoxidized to increase their compatibility with PVC. ...
This paper reviews the current trends in replacing commonly used plasticizers in poly(vinyl chloride), PVC, formulations by new compounds with reduced migration, leading to the enhancement in mechanical properties and better plasticizing efficiency. Novel plasticizers have been divided into three groups depending on the replacement strategy, i.e., total replacement, partial replacement, and internal plasticizers. Chemical and physical properties of PVC formulations containing a wide range of plasticizers have been compared, al
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