PA66 filling LGF Nylon (PA) has a series of excellent properties, such as high mechanical strength, chemical resistance, oil resistance, wear resistance, self-lubrication, easy processing and forming, and has become one of the thermoplastic engineering plastics widely used at home and abroad. But in the practical application, the performance requirements of nylon are different under different conditions or environment. For example, electric drill and motor shell, pump impeller, bearing, diesel engine and air conditioning fan and other parts require nylon material to have high strength, high rigidity and high dimensional stability; Because of the poor toughness of nylon at low temperature, it is necessary to toughen it. In some outdoor applications, nylon materials must be weather-resistant modification in long-term outdoor environment. The reinforced materials used for nylon are mainly glass fiber, carbon fiber, whiskers and other fibrous materials, and the glass fiber reinforced is the most widely used. The glass fiber reinforcement can obviously improve the rigidity strength and hardness of the material, and the dimensional stability and heat resistance of the material are obviously improved. Because nylon itself is not strong enough, by adding 10 to 30 percent of the fiber, to increase its strength. In particular, 30% strength is considered the most appropriate ratio. Also added to 40-50%, according to the specific requirements of different products, coupled with the appropriate formula, can be successful. Production technology of glass fiber reinforced nylon Long fiber method, that is, nylon and other components are premixed and added to the hopper, and the glass fiber from the glass fiber entrance through the screw rotation into the screw, and then mixed with nylon resin. Factors affecting the properties of glass fiber reinforced nylon Firstly, the interface bond between glass fiber and nylon resin has the most important effect on glass fiber reinforced nylon. If the combination between the two is not good, the reinforcement effect will be greatly reduced. At this time, the surface treatment of glass fiber is particularly important. Today, fiberglass manufacturers have been able to produce fiberglass models for different materials with different surface treatments for use by modified plastics manufacturers, as long as the right choice. Second, the length of glass fiber in nylon material is another major factor affecting its properties. In general, long glass fibers are superior to short glass fibers in terms of tensile strength, bending strength and modulus, and notched impact strength. At the same time, the dispersion of glass fiber in the material can not be ignored. The dispersion of glass fiber mainly depends on the appropriate shearing action of twin-screw and the kneading action of material, which involves the combination and speed of screw. The selection of screw speed is related to the content of additives such as glass fiber in the formula. For flame-retardant reinforced nylon, low speed is appropriate because the flame retardant has been decomposed by heat. In addition, processing temperature, glass fiber diameter, glass fiber type will also affect the final performance of the material, so it will not be repeated here. Glass fiber enhances the fluidity of nylon The fluidity of glass fiber reinforced nylon is poor, and problems such as high injection pressure, high injection temperature, dissatisfaction with injection molding and poor surface quality are easy to occur in the process of injection molding, which seriously affect the appearance of products and lead to a high defect rate of products. Especially in the production process of injection molding products, and can not directly add lubricant to solve the problem, can only be improved on the raw material, generally speaking, this needs to be added in the modified formula lubrication componentS. Resistance of glass fiber reinforced nylon to high temperature heat and oxygen aging In some applications such as bearings and diesel fans, glass fiber reinforced nylon often faces the problem of long time high temperature thermal and oxygen aging. Although the reinforced modification of nylon with glass fiber can moderately improve the heat resistance of nylon, it can not solve the problem well. Better results can be achieved by adding appropriate anti-thermal oxygen aging additives to the glass fiber reinforced nylon composite material, as shown in the figure above. Glass fiber enhances the weather resistance of nylon Nylon under the influence of sunlight, temperature change, wind and rain and other external conditions, there will be a series of aging phenomena such as fading, discoloration, cracking, powder and strength reduction, among which UV is the key factor to promote aging. Weather resistant nylon is currently mainly black products, that is, by adding carbon black and other ultraviolet absorption additives in nylon to solve its weather re...

폴리아미드 66 나일론 66(PA66)은 우수한 기계적 특성, 가공 성능 및 내식성을 가지고 있으며 PA66의 난연 수정 후 자동차, 전자, 기계 및 기타 분야에서 널리 사용될 수 있습니다. 다양한 분야에서 나일론을 광범위하게 적용함에 따라 성능에 대한 요구 사항이 한 단계 높아졌습니다. 그러나 PA66은 결정화도가 높고 결정화 속도가 빠르며 사출 성형 과정에서 뒤틀림 결함이 발생하기 쉽습니다. 특히 유리 섬유 강화 나일론 66의 경우 재료 내부의 유리 섬유의 이방성 배열로 인해 모든 방향에서 다른 수축률이 발생하기 쉽고 뒤틀림 변형이 더욱 심해집니다. 긴 유리 섬유 강화 복합 재료 유리섬유는 무기질 비금속 소재의 우수한 성능으로 주로 플라스틱 강화에 사용됩니다. 주로 실리카를 원료로, 고온에서 녹는 특정 금속 산화물 광물 원료를 추가하고, 중력을 끌어 당기는 고속의 역할에서 누설 노즐을 통한 용융 유리 액체 흐름이 그려지고 매우 미세한 연속 섬유로 급속 냉각 및 경화됩니다. , 직경은 수 미크론에서 20 미크론 이상입니다. 유리섬유는 모양에 따라 단유리섬유, 장유리섬유로 나뉜다. 짧은 유리 섬유: 길이 6mm 미만, 단면이 원형, 재료 분포 장애, 이방성. 긴 유리 섬유: 6-25mm 사이의 길이, 재료의 규칙적인 분포, 등방성. 짧은 유리 섬유 나일론: 긴 유리 섬유 나일론에 비해 가공성, 강성 및 강도가 향상되고 사출 성형시 부상이 덜 발생합니다. 긴 유리 섬유 강화 나일론: 짧은 유리 섬유에 비해 이방성 수축이 적어 뒤틀림의 영향을 줄입니다. 강성, 내마모성, 내노화성, 내열성은 유리섬유 단섬유 강화 나일론보다 강합니다. 데이터 시트 애플리케이션 회사 소개 Xiamen LFT Composite Plastic Co.,LTD는 2009년에 설립되었으며 제품 연구 개발(R&D), 생산 및 판매 마케팅을 통합하는 장섬유 강화 열가소성 소재의 글로벌 브랜드 공급업체입니다. 우리의 LFT 제품은 ISO9001&16949 시스템 인증을 통과했으며 자동차, 군사 부품 및 총기, 항공 우주, 신 에너지, 의료 장비, 풍력 에너지, 스포츠 장비 등의 분야를 다루는 많은 국가 상표 및 특허를 획득했습니다.