En estos días, el mundo de los secadores de cabello apareció inesperadamente. Antes de la ruta de gama alta de Dyson, después de la ruta civil de mijo. En todos los mercados pacíficos, todo tipo de marcas de secadores de cabello domésticos saltaron repentinamente para apoderarse del mercado de Dyson y suprimir el precio de Xiaomi. En un instante, todo tipo de secadores de pelo a la vista del público. Según las estadísticas, en la primera mitad de 2021, las ventas minoristas de secadores de cabello en China fueron de 2760 millones de yuanes, un 41,3 % más que el año anterior, y las ventas minoristas fueron de 13,81 millones de unidades, un 40,9 % más que el año anterior. Con el desarrollo de 5G, el secador de cabello chino ha ingresado a la próxima generación, y la demanda de la gente por un secador de cabello personalizado también está aumentando. At the same time, glass fiber reinforced nylon has quietly become the star material of hair dryer shell, and become the landmark material of the next generation of high-end hair dryer. Glass fiber reinforced PA66 is commonly used in the mouthpiece of high-quality hair dryers to increase strength and heat capacity. However, as the function of the hair dryer becomes more and more demanding, ABS as the main material of the shell is gradually replaced by glass fiber reinforced PA66. At present, the main factors affecting the preparation of high performance glass fiber reinforced PA66 composites include the length of glass fiber, the surface treatment of glass fiber and its retention length in the matrix. So let's take a look at the influencing factors of glass fiber reinforced PA66 production 1. The length of glass fiber The length of fiber is one of the main factors to determine the fiber reinforced composite. In ordinary short fiber reinforced thermoplastics, the fiber length is only (0.2~0.6) mm, so that when the material is damaged by force, because of the short length of the fiber, so that its strength is basically not used, and the purpose of using fiber reinforced nylon is to use the high rigidity and high strength of the fiber to improve the mechanical properties of nylon, So fiber length plays an important role in mechanical properties of products. Compared with short glass fiber reinforced nylon, the modulus, strength, creep resistance, fatigue resistance, impact resistance, heat resistance and wear resistance of long glass fiber reinforced nylon have been improved, and its application in automobile, electrical appliances, machinery and military industry has been expanded. 2. Surface treatment of glass fiber The binding force between glass fiber and matrix is another important factor affecting the mechanical properties of composite materials. Glass fiber reinforced polymers have good properties only when effective interfacial bonding is formed. For glass fiber reinforced thermosetting resin or polar thermoplastic resin composites, the surface of glass fiber can be treated with coupling agent to fo...

Carbon fiber composite material, also known as carbon fiber reinforced plastic, has excellent mechanical properties and corrosion resistance. It has been widely used in industrial production, sports and outdoor, medical equipment and other fields. It has good compatibility with human body and can be used as artificial bone, joint, dental root canal post and other implants. Carbon fiber composites are safe and reliable in civil applications. Carbon fiber vs. carbon fiber composite In real life, many people tend to confuse the concept of carbon fiber and carbon fiber composite materials. Carbon fiber is not used directly in aerospace and civil fields, but carbon fiber composite materials. Carbon fiber composites, also known as carbon fiber reinforced plastics, are composed of carbon fiber and resin matrix. So outside of the manufacturing process, people don't touch carbon fiber at all. They touch a resin matrix, which is no different from common plastic products. Carbon fiber composites are widely used Carbon fiber composites have been widely used in civil fields, and their popularity in foreign markets is far greater than that in China. Industrial production Carbon fiber composites are widely used in various corrosion resistant pipe containers, aircraft, ships and vehicle structural parts in industrial production. Outdoor sports Carbon fiber composites are also widely used in outdoor sports products such as badminton rackets, tennis rackets, fishing rods, bicycles and tents. Medical apparatus and equipment In the field of medical instruments, it is used to make mobile platform for X-ray examination instrument by its full transmission of X-ray. Using CFRP's excellent mechanical properties, it has been used in the manufacture of orthopedic and organ transplantation and other medical devices, as well as the manufacture of prosthetics, orthotics and other rehabilitation products. Carbon fiber composites are used extensively in the human body En la actualidad, algunas empresas han desarrollado huesos y articulaciones artificiales hechos de materiales compuestos de fibra de carbono. La resistencia a la flexión de este hueso artificial es más parecida a la del hueso humano real que a la del hueso artificial fabricado con otros materiales biológicos, lo cual es de gran importancia para la medicina ortopédica. La resistencia al desgaste de la articulación artificial hecha de ella en la articulación móvil también es mayor que la del polietileno de ultra alto peso molecular y los productos metálicos. Mejor biocompatibilidad En la actualidad, los compuestos de fibra de carbono se han utilizado ampliamente en la placa de fijación interna ósea, relleno óseo, tallo de cadera, raíz de diente de implante, materiales de reparación de cráneo y materiales de corazón artificial. La resistencia a la flexión de los huesos humanos es de aproximadamente 100 Mpa, el módulo de flexión es de 7 ~ 20 Gpa, la resistencia a la tracción es de aproximadamente 150 Mpa y el módulo d...

LFT information LFT sheet is a new generation of thermoplastic composite material after GMT (glass fiber felt reinforced thermoplastic) sheet. It is composed of long fiber as reinforcement material and polypropylene (PP), PA, PET as matrix material. Compared with GMT, LFT sheet has the following outstanding advantages: 1. The sheet has better fluidity in the pressing process, the manufacturing process is the same as GMT, and the basic performance is similar to GMT. 2, the sheet price is greatly reduced, more cost-effective. Compared with SMC (thermosetting sheet molding material), LFT has no storage time problem and the product can be recycled. For the same product, LFT is used to produce lighter quality, which can be reduced by 1/3. If used in the automotive field can effectively reduce the weight of the car to reduce fuel consumption! The molding cycle of SMC products is longer, the production cost of SMC products is relatively increased, and LFT has better toughness than SMC products. At the same time, the production site environment is significantly better than that of SMC. Although the unit price of the LFT is slightly higher than that of the SMC, the combined cost is comparable to that of the SMC. In the automobile industry and many fields, there is an urgent need for weight, environmental protection, recyclable, good impact toughness, etc., the above characteristics of LFT sheet is a new composite material which is very forward-looking in line with the global and Chinese development needs. LFT sheet using method and pressing process: 1, using the volume calculation method or density conversion method between different materials to calculate the product sheet dosage. 2. Cut the LFT sheet into a size roughly the same as the product area and weigh the additional sheet. 3. Preheat it at 220℃ for 8-12 minutes to make it soft. 4, take out, immediately put into the mold of the press, and quickly close the mold (mold temperature at about 90℃). 5. It can be removed 1-3 minutes after mold closing. 6, remove a small number of burrs, flying thorns, the product is ready. Principales áreas de aplicación de la lámina LFT: 1, autopartes: viga de parachoques, esqueleto del asiento, parte delantera, esqueleto del panel de instrumentos, soporte de la batería, cubierta del motor, tablero de pedales, placa interior de la puerta, placa de protección, soporte del equipaje, marco del neumático de repuesto y otros 40 tipos 2, plantilla de construcción: plantilla fundida en el lugar, plantilla prefabricada 3. Caja de embalaje: placa inferior y placa lateral del contenedor 4. Estadios y equipamiento deportivo: asientos, esquís, etc. 5, equipamiento químico: componentes de torre anticorrosión, filtro, componentes del reactor, etc. 6, electrodomésticos: cubierta de la máquina de aire acondicionado al aire libre, rejilla de cable, marco, etc.

La red de comunicación 5G ha llegado, es una nueva ciencia y tecnología, el desarrollo de materiales poliméricos también brinda nuevas oportunidades, los proveedores de materiales de alto rendimiento se están preparando activamente para los materiales necesarios para la comunicación 5G. Entre ellos, el material compuesto reforzado con fibra larga LFT se puede usar en el radomo de la estación base 5G, el marco del equipo, el soporte, el filtro y otros aspectos y se ve favorecido. Hoy, hablaremos sobre el material LFT. 1. Definition and characteristics of LDT-PP long fiber reinforced thermoplastics (LFT) refers to long, continuous glass fibers, After special process is fully infiltrated by resin, wait until the strip, and then cut into a specific size glass fiber reinforced rubber particles or resin soaked long glass fiber strip directly molded or injection molding material. The length of glass fiber in LFT materials is generally more than 3 mm, and its application and development goal is to be used as semi-structural and structural materials. Among them, the LFT composites based on polypropylene PP have the advantages of light weight and high strength, easy manufacturing and cost optimization. As a new high performance engineering plastics, it has been widely used. Currently, it is the first choice of polymer matrix composites for automotive lightweight. FEATURE ADVANTAGE The fiber length is long and evenly distributed It can improve the comprehensive mechanical properties of molded products Light specific gravity It is 20% lighter than glass fiber reinforced nylon and 62% lighter than aluminum alloy The molding shrinkage is small Product size stability It can be recycled and reused Green and environmental friendly 2. Preparation process of LFT-PP According to the preparation technology, the LFT-PP high performance composites can be divided into two categories: LFT-G process and LFT-D-ILC process. 2.1 LDT-G process Firstly, through the mixing of resin, glass fiber and additives, LFT-G long fiber pellets are prepared by special melt impregnation composite method, and then the final product is finished by injection molding process. The fiber length of LFT varies with the processing process. Impact properties are particularly dependent on the length of the glass fiber. The length of commercial LFT-G colloidal particles is generally 6 ~ 25mm. The LDT-G composite supports semi-mechanism automotive applications, such as front end components, door components, instrument bearers, tailgate and seating systems, combining lightweight and functionality. 2.2 LFT-D-ILC process The LDT-D-ILC is called the long fiber reinforced thermoplastic material online molding process technology. This process, the online mixing system is integrated in the molding process, matrix particles and additives are transported to the gravimetric feeding unit combination, which ensures appropriate mixing according to the mechanical properties of the component requirements. 3. The appl...

Long fiber thermoplastic (LFT) technology continues to develop. While automotive applications retain their market dominance, other industry areas are increasingly attracted by the promise of light weight and high strength - LFT PP compounds, for example, can offer lower cost alternatives to metals as well as higher cost technical engineered polymers. Continuous penetration of LFT PP compounds in the automotive sector According to a report released by AMI Consulting in September 2021, PP market penetration continues to rise. The report quantifies the use of LFT PP in granular form (LDT-G) and direct-in-line composite LFT PP (LDT-D) and tracks usage around the world. LFT PP is widely used in automotive front end mounts, dashboard mounts, door panels, consoles, pedals, underbody shields and many other automotive applications, the company said. One feature of these applications is that LFT PP is replacing steel - thereby reducing weight - or more expensive engineering plastics. AMI Consulting forecasts that LFT PP will maintain strong growth through 2025. Although growth rates vary across application segments, automotive Oems, and geographic markets. In the past, Europe was the leader in LFT sales, but that has changed. Asia accounts for 50% of global LFT PP demand in 2020, compared with 26% in Europe and 24% in the Americas (Table 1), according to the report. Table 1: Global LFT PP market distribution in the past 20 years One of the fastest growing application areas is lift doors for car trunks, which range in design from all metal to almost no metal. In metal-free designs, LFT PP is used to provide structural strength and is complemented by high performance PP to provide a paintable exterior skin. In the most demanding applications, the LFT PP elements within the structure are exposed and therefore require a good aesthetic finish. Plastic lift doors are especially valuable to electric car makers as a new way to reduce weight. The shift to electric and hybrid vehicles, while threatening some existing polymer applications, is also creating new opportunities for LFT PP as designers are rethinking concepts and adopting new approaches. The report cites the example of Tesla's "frunk" -- a back-up or storage compartment located at the front. This would make use of space in the front of the vehicle for storage, but would need to be designed with the ability of a traditional car's front end to absorb the impact of a crash. The strong interest in LFT materials from various industries is confirmed by RTP Inc., which offers a wide range of LFT materials. "Replacement metal parts or over-engineered short fiberglass compounds continue to be major growth opportunities," said Zach Halverson, Manager of the company's structured products business. For example, long fiber polypropylene compounds can often successfully replace short glass fiber polyamide compounds to provide a lower cost and lower density solution." Long fiber technology in engineering and high perfor...

In recent years, with the rapid development of the automobile industry, people's various requirements for car seats continue to improve, car seat lightweight, multi-functional, environmental protection, comfort and safety are people's basic needs for car seats, therefore, these aspects have gradually become the main direction of the development of car seats. Long fiber composite material is composed of resin and long fiber composite material, with a variety of characteristics, such as high strength, low density, short production time and easy to form, suitable for the current development trend of car seats, so in the automobile industry, it has gradually become the first choice of car seat materials. 1. Overview of car seats Car seats are mainly composed of four parts: seat cover, seat pillow, seat foam and seat skeleton. In addition, due to different market demands, some seats also have armrests, waist brackets or massage and other related comfort components, and some seats have cuphorers, drawers and other storage functions. At present, the lightness, comfort and safety of car seat design are of great significance. However, most of the main materials of conventional seats are metal materials, which have high density and heavy weight. Therefore, the development space of improving the lightweight of car seats only by optimizing the structure and design is limited. Long fiber reinforced composite materials have excellent mechanical properties and can achieve significant lightweight effect. Therefore, they are gradually applied in the automotive field, not only in most simple non-important parts, but also in some complex shape functional parts, such as the seat frame and the front segment module. 2. The importance of automobile lightweight Automobile lightweight means that on the basis of the safety performance and strength of the automobile can be guaranteed, the overall weight of the automobile can be reduced to the maximum extent, so as to enhance the power of the automobile, and reduce emissions and fuel consumption. According to the relevant tests, the fuel quantity of the vehicle has the most direct relationship with the weight of the vehicle quilt itself. The fuel consumption of 100 kilometers can be reduced by 0. 2 and 0. 8 L for every 1 kg weight reduction of the vehicle, which is usually about 4. 5% of the original consumption. Therefore, under the background of environmental protection and energy saving in automobile development, the lightweight of automobile is of great significance in the design and manufacturing process of modern automobile. Car seat is one of the most important interior parts in automobile. According to the survey, the weight of the car seat in the entire body accounts for 15% of the proportion. Although the car seat occupies a small proportion in the total weight of the body, however, as one of the large and extremely important parts of the car interior, its contribution to the lightweight process of the whole car c...