供應PP 中石化茂名 EPR300

東莞市常平軒源塑膠原料有限公司長期現(xiàn)貨供應：通用塑料 工程塑料 熱塑彈性體 熱固性塑料 降解塑料；本公司代理的產(chǎn)品均為原廠原包，隨貨可提供MSDS、SGS(ROHS)、UL黃卡、FDA、COA、ASTM、環(huán)保證書等,有任何塑膠問題都可向我咨詢，以上圖片及相關資料均有，可開具17%的增值稅發(fā)票，歡迎來電索取。我們的宗旨是以優(yōu)惠的價格給廣大新老客戶提供優(yōu)質(zhì)的品質(zhì)與服務。

玻璃纖維增強聚丙烯(PP)具有彈性模量和強度高、尺寸穩(wěn)定、耐熱性好、電性能優(yōu)良、價格低廉等優(yōu)點。作為～種通用熱塑性增強復合材料應用十分廣泛，比如在汽車、電子、家電、石油、化工等領域有著廣泛的應用前景。我國從20世紀70年代開始開發(fā)研究玻纖增強PP材料，進人90年代隨著各種改性劑的發(fā)展，玻纖增強PP的研究也十分活躍。為r獲得高性能玻纖增強PP，筆者積多年的研究經(jīng)驗，反復試驗優(yōu)化了工藝和配方，在流動性、強度、收縮率、韌性等方面進行了探討，得到了綜合性能比較理想的玻纖增強PP材料?！?

聚丙烯為無毒、無臭、無味的乳白色高結(jié)晶的聚合物，密度只有0. 90--"0. 91g/rm，是目前所有塑料中最輕的品種之一。它對水特別穩(wěn)定，在水中的吸水率僅為0. O1%，分子量約8萬一15萬。成型性好，但因收縮率大(為1%~2.5%）.厚壁制品易凹陷，對一些尺寸精度較高零件，還難于達到要求，制品表面光澤好，易于著色。

聚丙烯的化學穩(wěn)定性很好，除能被濃硫酸、濃硝酸侵蝕外，對其它各種化學試劑都比較穩(wěn)定；但低分子量的脂肪烴、芳香烴和氯化烴等能使聚丙烯軟化和溶脹，同時它的化學穩(wěn)定性隨結(jié)晶度的增加還有所提高，所以聚丙烯適合制作各種化工管道和配件，防腐蝕效果良好。

聚丙烯PP 中石化茂名 EPR300

Glass fiber reinforced polypropylene (PP) has the advantages of elastic modulus and high strength, dimensional stability, good heat resistance, excellent electrical perbance, low price etc.. As to general thermoplastic composite is widely used, for example, has a broad application prospect in automobile, electronic, electrical, petroleum, chemical and other fields. China began to research and development of glass fiber reinforced PP material from the 70's of the twentieth Century, into the 90's with the development of various modifying agent, glass fiber reinforced PP research is also very active. Enhanced PP for R to obtain the high perbance fiber, the product of many years of research experience, repeated experiment was designed to optimize the process and bulation, the fluidity, strength, shrinkage, toughness were discussed, obtained satisfactory comprehensive perbance of glass fiber reinforced PP composite.

Polypropylene is non-toxic, odorless, tasbess white high crystalline polymer, density of only 0 90-- 0 91g/rm, "is one of the varieties of all plastic the lightest. It is particularly stable to water, the water absorption rate of only 0 of O1%, molecular weight of about 8 in case 150000. Good bability, but because the large shrinkage (1%~2.5%). Thick wall products easy to sag, some of the high precision parts, also difficult to meet the requirements, product surface gloss, easy coloring.

The chemical stability of PP is very good, can be concentrated sulfuric acid, concentrated nitric acid erosion, are relatively stable for various other chemical reagents; but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can make polypropylene softening and swelling, and its chemical stability with the crystallinity increase and improve, so polypropylene is suitable for producing various chemical pipes and fittings, good anticorrosion effect.

聚丙烯PP 中石化茂名 EPR300

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