What is the function of emulsified wax

Introduction: as a kind of latent heat energy storage material, emulsified wax has the advantages of large latent heat of phase change, small volume change of solid-liquid phase change process, good thermal stability, no supercooling phenomenon, low price, etc What's the function of emulsified wax following the small compilation of Baibai safety net? A stable paraffin microemulsion can be prepared only when the HLB value of the emulsifier matches the HLB value required for the emulsified wax The results showed that the emulsion was unstable when SP 80/OP 10 SP or 60/OP 10 compound emulsifier was used Sp-80 / tw-80 or sp-60 / tw-80 compound emulsifier should be selected Do you know how to emulsify wax? Of course, the emulsified wax is to disperse it in water With the aid of the directional adsorption of emulsifier, it changes the surface tension and becomes a high dispersion, uniform and stable emulsion under the action of mechanical external force The production of emulsified wax is a quite mature technology, which can be used in paper making, leather, wood, agriculture, explosives, medicine, ceramics, cosmetics, automobile protection and other industries and fields This paper mainly studies the emulsification phenomenon and emulsification effect of paraffin as raw material Let's understand the function of emulsification wax? 1 Water based coating and ink industry: it can improve the scratch resistance, surface hydrophobicity, adhesion resistance and antifouling performance of the film, making the film more smooth 2 Construction industry: used as curing agent for reinforced concrete In the process of concrete solidification, if the surface moisture evaporates too fast, a series of chemical reactions will not be completed and the maximum compressive strength of the surface will not be achieved Therefore, it is necessary to prevent the moisture from evaporating too fast during the curing of concrete For this reason, the industry developed a film curing agent with emulsified paraffin as the basic raw material, which can avoid unnecessary evaporation of surface water and promote the hydration of cement 3 Agriculture: Horticultural practice has proved that plants mainly rely on the roots to absorb water, and the evaporation of water is lost from the surface of leaves The plant itself does not consume much water, such as spraying water film on the surface of its leaves to reduce evaporation on the surface of the leaves Plants need less than 50% of their water From the 1960s, the United States and other advanced countries in the field of agriculture, in order to prevent fruit trees, shrubs, etc from dormancy in winter or loss of water and dead in the process of transplanting and shipping, adopted the method of spraying emulsified paraffin In the 1970s, a large number of agricultural emulsified paraffin patents appeared Emulsified paraffin is mainly used for: (1) planting seedlings Before the seedlings of pine and Eucalyptus were planted in the field, they were soaked in emulsified paraffin first After treatment, the seedlings were significantly improved in terms of tolerance to the effects of transplantation or in adverse climate conditions Because of the decrease of water evaporation on the leaf surface, the survival rate of the leaves was significantly improved (2) Planting of garden nursery In the process of pruning or transplanting, the survival rate can be significantly improved by emulsion paraffin treatment If a large number of shrubs need to be transplanted in the dry season, the safe transplantation can be ensured by spraying emulsified paraffin in advance (3) Resist drought and keep fresh The seedlings and shrubs can resist the severe drought environment well after spraying with emulsified paraffin After the flowers are picked, they can be soaked in water in advance, and then treated with emulsified paraffin, the life of the flowers can be significantly prolonged 4 Papermaking industry: in the process of paper selection, most of the paper is added with inner glue, which can make the inherent absorption of paper fiber mesh with ideal water resistance The traditional filling agent generally uses resin, such as emulsified paraffin, which can replace 20% - 40% of the traditional resin The addition of paraffin microemulsion can reduce the moisture absorption of paper and promote the uniform distribution of colloid in paper fiber structure Another advantage of adding emulsified paraffin is that it can counteract the influence of resin binder when mixed with various pigments, so the printability can be improved and the printing efficiency can be improved The sizing paper in beater can be further processed and refined by its surface glue or coating At present, a new type of emulsified paraffin is being developed as a hydrophobic agent for the production of high-grade printing paper 5 Wood based panel: wood based panel includes fiberboard and particleboard, both of which are products of comprehensive utilization of wood in the wood industry In addition to wood fiber or sawdust, its components also need a certain proportion of rubber material to make wood fiber or sawdust through hot pressing and gluing A certain amount of emulsified paraffin is mixed with glue to make the board water resistant and improve the surface finish Due to the small particle size of emulsified paraffin, in the manufacturing process of wood-based panel, through effective demulsification, the tiny paraffin particles can be separated from the water phase and evenly adsorbed on the wood fiber In developed countries, there is no chipboard and fiberboard without emulsified paraffin 6 Wood waterproof: the emulsified paraffin is evenly coated on the surface of the wood to be waterproof by soaking or spraying Because the particle size of the emulsified paraffin is fine, it can naturally penetrate into the interior of the wood, and the effect of waterproof can be achieved by drying 7 Light industry and rubber industry: in light industry and rubber industry, emulsified paraffin can be used as polish, coating and additives In the pre vulcanization process of manufacturing latex gloves, or in the glue mixing tank, the emulsified paraffin can be added in the amount of 1.5-2.5, which can improve the anti viscosity of the mold and is easy to demould the gloves In some formulations of emulsion, adding emulsified paraffin can improve the performance of latex 8 Ceramic industry: in the process of porcelain production, for kaolin with poor quality, it is often necessary to add emulsified wax to make up for its poor plasticity or to improve the strength of the initial products At the same time, the use of emulsified paraffin can also replace the expensive vinyl acetate In the process of ceramic production, adding emulsified paraffin can improve the strength and lubricity of the initial ceramic products 9 Petroleum Industry: drilling fluid plays an important role in petroleum drilling and production Its main functions are: (1) cleaning the bottom of the well, carrying cuttings; (2) cooling and lubricating the bit and drill string; (3) forming mud cake, protecting the well wall; (4) controlling and balancing formation pressure, etc Adding high-quality emulsified paraffin to drilling fluid can improve its inhibition and lubricity, prevent well collapse and improve the drilling speed 10 Textile industry: mainly used for yarn finishing and textile finishing agent In yarn finishing, emulsified paraffin is used in the finished product line, which can produce high luster, deeper and brighter color, as well as higher elasticity and tensile strength It is mainly used as an important component of textile finishing agent to give these textiles excellent soft handle, good smoothness and glossiness 11 Demoulding agent: as demoulding agent, it is widely used in demoulding of rubber or plastic products, Pu demoulding, metal demoulding and other fields The above is what is the function of emulsified wax introduced by the small editor of Baibai safety net If you want to know more about food additives, please continue to browse the content in the food safety knowledge base of this net, so that your family can eat healthier food Editor in charge: Zhang Xiaofu