These days, the hair dryer world unexpectedly rolled up. Before the high-end route of Dyson, after the civilian route of millet. In all peaceful markets, all kinds of domestic hair dryer brands suddenly jumped out to seize the Dyson market and suppress the price of Xiaomi. In an instant, all kinds of hair dryers into the public eye. According to statistics, in the first half of 2021, the retail sales of hair dryer in China was 2.76 billion yuan, up 41.3% year on year, and the retail sales were 13.81 million units, up 40.9% year on year. With the development of 5G, Chinese hair dryer has entered the next generation, and people's demand for a personalized hair dryer is also increasing. 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 form chemical bond between resin and glass fiber surface, so as to obtain effective interfacial bonding. 3. Retention length of glass fiber in nylon matrix People have d...

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 At present, some companies have developed artificial bones and joints made of carbon fiber composite materials. The bending strength of this artificial bone is closer to that of real human bone than that of artificial bone made of other biological materials, which is of great significance to orthopedic medicine. The wear resistance of the artificial joint made of it at the movable joint is also higher than that of ultrahigh molecular weight polyethylene and metal products. Better biocompatibility At present, carbon fiber composites have been widely used in bone internal fixation plate, bone filler, hip stalk, implant tooth root, skull repair materials and artificial heart materials. The bending strength of human bones is about 100Mpa, the bending modulus is 7~20Gpa, the tensile strength is about 150Mpa, and the tensile modulus is about 20Gpa. The bending strength of carbon fiber composites is about 89Mpa, the bending modulus is 27Gpa, the tensile strength is about 43Mpa and the tensile modulus is about 24Gpa, whic...

With the continuous increase of car ownership in the world, a series of problems such as energy shortage and environmental pollution are becoming increasingly prominent. Energy saving and environmental protection have become the two major problems to be solved in the world automobile industry. In order to deal with these problems, the world has introduced strict fuel consumption and emission standards for passenger vehicles. Facing the great challenge of energy saving and emission reduction, how to reduce the energy consumption of automobiles and alleviate the environmental pollution caused by them has become a difficult problem that the automobile industry must solve. As one of the key technologies to solve this problem, "automobile lightweight" is an important development direction of modern automobile technology. Automotive lightweight can not only reduce the load of power and powertrain, improve the dynamic performance of the vehicle, effectively reduce the braking distance, but also significantly improve the vehicle ride stability and comfort. In addition, the lightweight design of the body has important practical significance to improve the economy, environmental protection and power performance of the vehicle. Authoritative research shows that if the vehicle mass is reduced by 10%, its fuel efficiency can be increased by 6% ~ 8%; When the vehicle mass is reduced by 100kg, the fuel consumption of 100 km can be reduced by 0.3 ~ 0.6L correspondingly, and the carbon dioxide emissions can be reduced by about 8 ~ 11g. At present, one of the important ways of automobile body lightweight is to use lightweight and efficient composite parts. Composite material is a new material which is prepared by two or more different materials through physical or chemical means and has better properties than its own composition material. All kinds of materials learn from each other in performance, produce synergistic effect, so that the final composite material's comprehensive performance is better than the original composition materials and meet various requirements. Long glass fiber reinforced polypropylene composite (PP composite), as a typical thermoplastic composite, has the advantages of good toughness, high strength, low density, long storage life, recycling and low price. Long glass fiber reinforced PP product is a modified plastic material. The material is usually 12 mm or 25 mm in length and about 3 mm in diameter of columnar particles. In this particle, the glass fiber has the same length as the particle, the content of the glass fiber can vary from 20 to 70 percent, and the color of the particle can be matched according to the customer's requirements. The particle can be used in injection and molding processes, and can be used in the production of structural or semi-structural parts. Applications include automotive, construction, home appliances, power tools, and so on. Applications in the automotive industry: front end frame, body door module, dashbo...

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. Main application areas of LFT sheet: 1, auto parts: bumper beam, seat skeleton, front end, instrument panel skeleton, battery bracket, engine cover, pedal board, inner door plate, guard plate, luggage bracket, spare tire frame and other 40 kinds 2, building template: cast-in-place template, prefabricated template 3. Packing case: bottom plate and side plate of container 4. Stadiums and sports equipment: seats, skis, etc 5, chemical equipment: anti-corrosion tower components, filter, reactor components, etc 6, household appliances: air conditioning outdoor machine cover, cable grid, frame, etc

5G communication network has come, is a new science and technology, the development of polymer materials also brings new opportunities, high-performance material suppliers are actively preparing for the materials needed for 5G communication. Among them, LFT long fiber reinforced composite material can be used in 5G base station radome, equipment frame, bracket, filter and other aspects and is favored. Today, we will talk about LFT material. 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 application of LFT-PP Automotive field: LFT-PP material can not only effectively i...

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...