PA12 NA LCF 흑색 자동차 부품용 고온 저항

긴 사슬 나일론에서 다른 나일론 소재와 비교하여 PA12는 가장 낮은 흡수율, 가장 낮은 밀도, 낮은 융점, 내 충격성, 내 마찰성, 저온 저항성, 연료 저항성, 우수한 치수 안정성과 같은 큰 이점을 가지고 있습니다. 노이즈 방지 효과. PA12는 PA6, PA66 및 폴리올레핀(PE, PP)의 특성을 동시에 가지고 있어 경량성과 물리적, 화학적 특성의 조합을 이루며 성능면에서도 장점이 있습니다.

There are a large number of non-polar methylene groups in nylon 12, which makes nylon 12 molecular chain more compliant. The amide group in nylon 12 is polar, and the cohesion energy is very large, it can form hydrogen bonds between the molecules, so that the molecular arrangement is regular.

Therefore, nylon 12 has high crystallinity and high strength. Nylon 12 has low water absorption, good low temperature resistance, good air tightness, excellent alkali and oil resistance, medium resistance to alcohol, inorganic dilute acid and aromatic hydrocarbons, good mechanical and electrical properties, and is a self-flameout material.

1) Density

The relative density of nylon 12 is only 1.01-1.03, which is the smallest among all engineering plastics, which has a certain effect on reducing the quality of vehicles and reducing fuel consumption. When compared by unit volume, nylon 12 has advantages in price and performance.

2) Melting point

The melting point of nylon 12 is 172-178℃, slightly lower than nylon 11, can fully meet the requirements of automobile fuel pipe and brake pipe working environment temperature.

3) Water absorption

As we all know, the biggest disadvantage of nylon products is large water absorption, dimensional stability is difficult to ensure. And PA12 has the lowest water absorption rate of nylon products, this is due to the methylene molecules in nylon 12 greatly reduce the hydrophilic groups, which makes nylon 12 has a great advantage.

4) Impact strength

Impact strength is an important technical index, especially for nylon 12 pipe often exposed to air. Nylon 12 under -20℃ and -40℃ according to the standard test, no fracture phenomenon, fully meet the requirements of use. Nylon 12 has excellent impact resistance.

5) Low temperature performance

Nylon 12 has the lowest brittleness temperature of -70 degrees Celsius, so it can be widely used in low-temperature resistant parts.

6) Flexibility

The influence of plasticizer on the physical properties of nylon 12 is concentrated on the elastic modulus of resin. Nylon 12 has three basic types of resin, their main difference is due to the plasticizer content of different forms of flexibility. The elastic modulus of resin decreases with the increase of extractable component content of plasticizer.

7) Low wear and low friction performance

Nylon 12 has excellent low abrasion and low friction properties and self lubricating properties, so the friction noise of nylon 12 products is very low.

8) Fuel resistance

In automobiles, the mixture of oxygenated fuel, high aromatic fuel and alcohol currently used can cause the breakdown of many hose materials. After the test, only nylon 11, nylon 12 and fluorocarbon resin elastomers can be used in this environment. Almost other types of nylon melt under the action of automobile fuel, resulting in a change in size.

9) Resistance to zinc chloride solution

Zinc chloride is found under the car. Under certain temperature and humidity, the salt on the road reacts with galvanized steel plate or zinc-containing primer to form the corrosive zinc chloride. In addition, ozone aging, ultraviolet radiation, temperature conditions and so on, will bring different degrees of damage to the parts, reduce the service life.

Nylon 12 is very resistant to zinc chloride solution. Because there is no unsaturated double bond in nylon 12 which is susceptible to ozone attack, ozone aging does not occur. In addition, Nylon 12 UV resistance is also excellent.

10) Excellent electrical performance

The long carbon chain structure of nylon gives it excellent electrical properties. Because of the low water absorption of long carbon chain nylon, it still has excellent dielectric properties in the humid environment, which is not possessed by short carbon chain nylon such as nylon 6 and nylon 66.

PA12 is the most widely used long carbon chain nylon. In addition to having most of the general properties of ordinary nylon, it has low water absorption, high dimensional stability, high temperature resistance, corrosion resistance, good toughness, easy processing and other advantages. Compared with PA11, another long carbon chain nylon material, the price of butadiene, the raw material of PA12, is only one third of the price of castor oil, the raw material of PA11. It can replace PA11 and be applied in most scenes, and has a wide range of applications in automobile fuel pipe, air brake hose, submarine cable, 3D printing and many other fields.

1. Automotive

Nylon 12 can be widely used in automotive fluid transmission lines, including fuel lines, clutch lines, vacuum brake supercharger lines, air brake lines, battery coolant lines and the joints of the above pipelines, because of its safety and reliability, is an excellent automotive lightweight material.

2. Pipe cables

Over the years, PA12 has been used in flexible risers, gas pipes, linings, and steel pipe coatings both onshore and offshore to protect against seawater erosion and oil fluid corrosion, flexible risers for the delivery of subsea oil and gas products and incoming fluids, and natural gas distribution systems at pressures up to 20bar. Nylon 12 has low embrittlement temperature and excellent weather resistance, especially suitable for the manufacture of field special purpose communication cables in all climates (-50 ~ 70℃).

3.3D printing

Compared with other materials, PA12 powder has excellent characteristics such as high fluidity, low static electricity, low water absorption, moderate melting point and high dimensional accuracy of products. The fatigue resistance and toughness can also meet the needs of higher mechanical properties of the workpiece, so nylon 12 gradually become the ideal material for 3D printing engineering plastics.


4. Medical care

PA12는 간호 의료 재료로도 사용됩니다. 카테터 재료의 기계적 특성이 특히 중요합니다. 카테터는 끼우기 쉬워야 하지만 구부러지거나 부러지지 않아야 합니다. PA12는 높은 파열 압력, 우수한 유연성, 내화학성, 체액과의 호환성 및 무독성으로 인해 카테터 생산에 탁월한 소재입니다. 의료 제품에 대한 미국 식품의약국 및 유럽 연합의 요구 사항을 충족합니다.