国产乱人伦精品免费,成av免费大片黄在线观看,俄罗斯女人内谢69xxxxx,亚洲欧洲av综合一区二区三区,国产免费一区二区视频,亚洲中文字幕无码中字,国产精品门事件AV,国产香蕉和进口香蕉的价格比较

1、 Product Introduction

FR201F is a compound halogen-free expansion flame retardant containing phosphorus and nitrogen macromolecules, which fully complies with the requirements of the EU RoHS environmental directive and relevant domestic policies and regulations for halogen-free, low smoke, and green flame retardant materials. Applied to PE foam materials, adding 30% -35% can achieve flame retardancy of 1.6mm V-0, and has the advantages of high foaming ratio, easy molding, and low price.

2、 Product indicators

3、 Recommended dosage

4、 Product Features

1. High flame retardant efficiency, with an addition amount of 30-35%, and minimal impact on the mechanical properties of the material;

2. The flowability of flame retardants is good, and their impact on material melting is relatively small;

3. High cost-effectiveness, compared to halogen systems, it has extremely high cost-effectiveness;

4. Good environmental friendliness of materials, low smoke and low toxicity;

5. Low product density helps to reduce weight.

5、 Usage suggestions and precautions

1. Inorganic fillers such as talcum powder and calcium carbonate can reduce flame retardant efficiency.

2. This product is a highly efficient halogen-free flame retardant specially developed based on the combustion characteristics of polyethylene foam materials. It can also be used for other polyolefin materials such as PP, EPDM, etc.

3. During the processing, while ensuring the uniform dispersion of flame retardants, appropriate screw combinations and processing temperatures should be selected to avoid a decrease in flame retardant efficiency and foaming caused by the decomposition of flame retardants. It is recommended that the processing temperature range be between 170-190 ℃; During the process of pulling water strips, water should be released as soon as possible.

4. The experimental data was obtained under certain conditions, and the results are only for reference in material selection and formula design.

6、 Storage and transportation

1. This product has a net weight of 25kg per package and is transported as a regular chemical.

2. The product should be stored in a dry and ventilated environment. If stored for a long time or accidentally exposed to moisture, it is recommended to dry it at 80-110 ℃ for 2-4 hours before use.