品牌：進(jìn)口 產(chǎn)品規格：齊全 產(chǎn)地：廣東東莞市 包裝說(shuō)明： CAS/標準: 運輸說(shuō)明：



≈ TPE新加坡 APEXTB-6000-60***Filling modified PP production process, its main engine is mixed type extruder, can use different screw forms according to the different needs. Double screw extruder or wavy screw extruder or double corrugated single screw extruder used normally, only in special material production by twin-screw extruder, but the use of calcium carbonate filled or filled with talc, the selection of a single screw or double wave screw extrusion equipment can achieve.
By means of mechanical method, other polymers are added into the generated polymers to make their performance changes known as blending modification.
Modification effect modified with additives
EPDM、POE、EVA、SBS
Enhanced modified
≈ TPE新加坡 APEXTB-6000-60***PP
Fiber - like materials are added to the plastic, which can significantly improve the strength of the plastic material, which is called enhanced modification. The material with large diameter to thickness ratio can significantly improve the flexural modulus (rigidity) of the plastic material, and it can also be called the reinforced modification.
Glass fiber is the main reinforced material, which can significantly improve the tensile strength of PP plastics. The glass fiber content is generally not more than 40%. It is generally believed that the fiber has a modified effect when the fiber length is more than 0.2mm, and the glass fiber has a better effect when the diameter of the fiber is more than ten microns. When the glass fiber content is increased, the processing fluidity of the reinforced PP is decreased, but it is still a good fluidity plastic.
The glass fiber reinforced PP can improve the mechanical strength and heat resistance, and glass fiber reinforced PP steam resistance, chemical corrosion resistance and creep resistance are good, in many cases can be used as engineering plastics, such as fan blades, impeller pumps, heaters, grille lamp, electric heater and shell etc.. Appraisal
It is easy to identify whether it is polypropylene, and to distinguish homopolymer, copolymerization and random polypropylene by infrared spectroscopy (FTIR). The simplest way to identify everyday is to burn on colorless flame (such as lighter and alcohol lamp). The sample will continue to burn, smoke and flame will appear yellow and with the smell of hot oil.
Common level
1. The homopolymer of homopolymer PP- polypropylene [size=-1]Homo-polymer polypropylene, called PPH polypropylene PP homopolymer for short, is a single polymer of propylene monomer. Polypropylene (PP), as a thermoplastic polymer, began to be commercialized in 1957. It is the first of the stereoscopic polymer. Its historical significance is more reflected in it, which has been the fastest growing major thermoplastic, and its total national output reached 3 million tons in 2004. It has a wide range of applications in the field of thermoplastic plastics, especially in fiber and filament, film extrusion, injection molding and so on.
Two, PP copolymer, Polypropylene Copolymer, or PPC, is the copolymer of propylene monomer and ethylene monomer. According to the distribution mode of ethylene monomer on the molecular chain, the copolymer PP can be divided into two kinds: random copolymer (PPR) and block copolymer (PPB). The rigidity of the PPR is good, but the impact resistance is not good, especially the low temperature impact resistance is worse, and the creep resistance is poor. The impact resistance of PPB is good, but the vermicular resistance is as bad as PPR. The impact resistance and creep resistance of PPR are all good. 在2月2日至3日在京召開(kāi)的2018年全國環(huán)境保護工作會(huì )議上，環(huán)保部部長(cháng)李干杰介紹，今年我國將制定實(shí)施打贏(yíng)藍天保衛戰三年作戰計劃，啟動(dòng)鋼鐵行業(yè)超低排放改造，還要出臺京津冀及周邊地區、長(cháng)三角、汾渭平原等重點(diǎn)區域大氣污染防治實(shí)施方案。到2020年，全國未達標城市pm2.5平均濃度要比2015年降低18%，地級及以上城市優(yōu)良天數比例達到80%。這也是“十三五”規劃提出的約束性指標。