描述
PC塑料改性特性
特点：无卤阻燃，高流动性，高耐热性
用途：显示屏前框、后壳、笔记本电脑壳、电子电器等。
PC塑料改性特性
产品详细信息
PC塑料改性特性。填充改性PC是指在塑料基体中添加固体填料，以降低成本或改变塑料的某些性能。塑料填充改性体系一般由基体塑料、填料和添加剂三部分组成。由于填料的化学成分、几何结构、粒度分布、表面形貌等特性，填料在塑料中的分散性以及界面结构，填料在填充体系中发挥着不同的作用
增强：大多数填料的价格比塑料低得多，因此将其添加到塑料中可以降低成本
改善某些性能：塑料的某些性能并不令人满意，添加填料后，某些性能可以得到改善。例如材料的弯曲强度和耐热性
赋予功能：例如，金属粉末或炭黑作为填料可以赋予材料导电性
2。增强改性PC是在塑料中加入增强材料，以提高塑料的性能，尤其是力学性能可以翻倍。强化改性不仅使材料的力学性能有了飞跃，而且赋予了材料优异的性能，其特点如下：
1）高比强度：所谓高比强度是指材料的强度与相对密度之比。通过强化某些塑料，其比强度与金属相当
PC塑料改性特性
2）良好的减震性和过载安全性
良好的抗疲劳性：也就是说，对反复的压力有良好的抵抗力
良好的耐热性：通过强化，热变形温度可以大大提高
5）线膨胀系数小：由于添加了纤维材料，增强材料的线膨胀系数远低于塑料体的线膨胀系数，因此产品收缩率小，可用于制造尺寸精度高的产品
3。增韧改性PC是在塑料中加入增韧剂，以提高塑料的抗冲击性。增韧是改性PC塑料的一个重要特征。冲击强度大大提高，但拉伸强度、弯曲强度和耐热性降低
4。阻燃改性PC是指在塑料中添加阻燃剂以提高其阻燃性。大多数塑料是易燃材料，对电气和电子设备来说不太安全。通过阻燃改性提高了材料的安全性。当然，阻燃改性会使材料的大部分性能降低
5。合金通过混合两种或两种以上不同塑料而获得的系统称为塑料合金。制备合金的主要目的是使不同塑料的成分更好地互补。当然，某些特性也超过了任何单个组件的性能。例如：PC/ABS合金改善了PC的冲击性能，提高了其加工流动性和抗应力裂纹能力，还可以改善PC的电镀性能。
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PC Plastic Modification Characteristics
Features: halogen-free flame retardant,
high fluidity, high heat resistance.
Application: display front frame and back shell,
notebook shell, electronic appliances, etc.
PC Plastic Modification Characteristics
Product Details
PC plastic modification characteristics
1. Filled modified PC refers to adding solid fillers to the plastic matrix to reduce costs or change certain properties of the plastic. Generally, the filling modification system of plastics is composed of three parts: matrix plastics, fillers and additives. Due to the chemical composition, geometry, particle size distribution, surface morphology and other properties of the filler, the dispersion of the filler in the plastic and the interface structure The fillers play different roles in the filling system.
1) Reinforcement: The price of most fillers is much lower than that of plastics, so adding them to plastics can reduce costs.
2) Improve some properties: some properties of plastics are not satisfactory, and some properties can be improved after adding fillers. Such as the bending strength and heat resistance of the material.
3) Give function: For example, metal powder or carbon black as filler can give the material conductivity.
2. Reinforced modified PC is to add reinforced materials to the plastic to improve the performance of the plastic, especially the mechanical properties can be doubled. Reinforced modification not only makes the mechanical performance a leap, but also gives the material excellent performance, its characteristics are as follows:
1) High specific strength: The so-called high specific strength refers to the ratio of the strength of the material to the relative density. By strengthening some plastics, the specific strength is equivalent to that of metals.
PC plastic modification characteristics
2) Good shock absorption and good overload safety.
3) Good fatigue resistance: that is, good resistance to repeated stress.
4) Good heat resistance: By strengthening, the heat distortion temperature can be greatly increased.
5) Small linear expansion coefficient: Due to the addition of fiber materials, the linear expansion coefficient of the reinforced material is much lower than that of the plastic body, so the product has a small shrinkage rate and can be used to manufacture products with high dimensional precision.
3. Toughened modified PC is to add tougheners to the plastic to improve the impact resistance of the plastic. Toughening is a significant feature of modified PC plastics. The impact strength is greatly improved, but at the same time the tensile strength, bending strength and heat resistance are reduced.
4. Flame-retardant modified PC refers to the addition of flame retardants to plastics to improve its flame resistance. Most plastics are flammable materials, and they are less safe for electrical and electronic equipment. The safety of materials is improved by flame retardant modification. Of course, flame-retardant modification makes most of the properties of the material decrease.
5. Alloy. The system obtained by blending two or more different plastics is called a plastic alloy. The main purpose of preparing alloys is to make the components of different plastics complement each other better. Of course, some properties also exceed the performance of any individual component. For example: PC/ABS alloy improves the impact performance of PC, improves its processing fluidity and stress crack resistance, and can also improve the electroplating performance of PC.
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