PC 沙伯基礎(chǔ) FXG121R PC塑料

SABIC LEXAN系列PC簡(jiǎn)介

聚碳酸酯(簡(jiǎn)稱PC)是分子鏈中含有碳酸酯基的高分子聚合物，根據(jù)酯基的結(jié)構(gòu)可分為脂肪族、芳香族、脂肪族-芳香族等多種類型。其中由于脂肪族和脂肪族-芳香族聚碳酸酯的機(jī)械性能較低，從而限制了其在工程塑料方面的應(yīng)用。目前僅有芳香族聚碳酸酯獲得了工業(yè)化生產(chǎn)。由于聚碳酸酯結(jié)構(gòu)上的特殊性，現(xiàn)已成為五大工程塑料中增長(zhǎng)速度快的通用工程塑料。

化學(xué)性能

聚碳酸酯（PC）是碳酸的聚酯類，碳酸本身并不穩(wěn)定，但其衍生物（如光 氣，尿素，碳酸鹽，碳酸酯）都有一定穩(wěn)定性。按醇結(jié)構(gòu)的不同，可將聚碳酸酯分成脂族和芳族兩類。

脂族聚碳酸酯。如聚亞乙基碳酸酯，聚三亞甲基碳酸酯及其共聚物，熔點(diǎn)和玻璃化溫度低，強(qiáng)度差，不能用作結(jié)構(gòu)材料；但利用其生物相容性和生物可降解的特性，可在緩釋放載體，手術(shù)縫合線，骨骼支撐材料等方面獲得應(yīng)用。

聚碳酸酯耐弱酸，耐弱堿，耐中性油。

聚碳酸酯不耐紫外光，不耐強(qiáng)堿。

PC是一種線型碳酸聚酯，分子中碳酸基團(tuán)與另一些基團(tuán)交替排列，這些基團(tuán)可以是芳香族，可以是脂肪族，也可兩者皆有。雙酚A型PC是重要的工業(yè)產(chǎn)品。

PC是幾乎無色的玻璃態(tài)的無定形聚合物，有很好的光學(xué)性。PC高分子量樹脂有很高的韌性，懸臂梁缺口沖擊強(qiáng)度為600~900J/m，未填充牌號(hào)的熱變形溫度大約為130°C ，玻璃纖維增強(qiáng)后可使這個(gè)數(shù)值增加10°C。PC的彎曲模量可達(dá)2400MPa以上，樹脂可加工制成大的剛性制品。低于100°C 時(shí)，在負(fù)載下的蠕變率很低。PC耐水解性差，不能用于重復(fù)經(jīng)受高壓蒸汽的制品。

PC主要性能缺陷是耐水解穩(wěn)定性不夠高，對(duì)缺口敏感，耐有機(jī)化學(xué)品性，耐刮痕性較差，長(zhǎng)期暴露于紫外線中會(huì)發(fā)黃。和其他樹脂一樣，PC容易受某些有機(jī)溶劑的浸濁。

PC材料具有阻燃性，。抗氧化性。

物理性能

密度：1.18－1.22 g/cm^3 線膨脹率：3.8×10^-5 cm/°C 熱變形溫度：135°C 低溫-45°C

聚碳酸酯無色透明，耐熱，抗沖擊，阻燃BI級(jí)，在普通使用溫度內(nèi)都有良好的機(jī)械性能。同性能接近聚甲基丙烯酸甲酯相比，聚碳酸酯的耐沖擊性能好，折射率高，加工性能好，不需要添加劑就具有UL94 V-0級(jí)阻燃性能。但是聚甲基丙烯酸甲酯相對(duì)聚碳酸酯較低，并可通過本體聚合的生產(chǎn)大型的器件。

聚碳酸酯的性差。一些用于易磨損用途的聚碳酸酯器件需要對(duì)表面進(jìn)行特殊處理。

主要優(yōu)點(diǎn)

1、具高強(qiáng)度及彈性系數(shù)、高沖擊強(qiáng)度、使用溫度;

2、高度透明性及自由染色性;

3、成形收縮率低、尺寸安定性良好；

4、耐疲勞性佳;

5、耐候性佳;

6、電氣特性優(yōu);

7、無味無臭對(duì)人體無害符合衛(wèi)生安全。[5]

主要性能

a、機(jī)械性能：強(qiáng)度高、耐疲勞性、尺寸穩(wěn)定、蠕變也?。ǜ邷貤l件下也極少有變化）；

b、耐熱老化性：增強(qiáng)后的UL溫度指數(shù)達(dá)120~140℃（戶外長(zhǎng)期老化性也很好）；

c、耐溶劑性：無應(yīng)力開裂；

d、對(duì)水穩(wěn)定性：高溫下遇水易分解（高溫高濕環(huán)境下使用需謹(jǐn)慎）；

e、電氣性能：

1、絕緣性能：優(yōu)良（潮濕、高溫也能保持電,是制造電子、電氣零件的理想材料）；

2、介電系數(shù)：3.0-3.2；

3、耐電弧性：120s；

f、成型加工性：普通設(shè)備注塑或擠塑。

SABIC LEXAN系列

Lexan 201 7.0 MFR, for thicker sections without sinks.

Lexan 203 7.0 MFR, for thicker sections without sinks. Improved flame retardance.

Lexan 221 17.5 MFR, for small, intricate parts. Improved flame retardance.

Lexan 241 10.5 MFR. Improved flame retardance.

Lexan 243 10.5 MFR. UV-stabilized. Improved flame retardance.

Lexan 920 Opaque colors, low viscosity, superior flame retardance.

Lexan 920A Low viscosity injection moldable, flame retardant PC.

Lexan 920ASR More robust design of standard 900 series flame retardant grade.

Lexan 923 Opaque colors, low viscosity, superior flame retardance.

Lexan 923A Low viscosity, flame retardant with exceptional surface.

Lexan 923ASR More robust design of standard 900 series flame retardant grade.

Lexan 940 Opaque colors, medium viscosity, superior flame retardance.

Lexan 940A Medium viscosity, flame retardant PC. Exceptional surface.

Lexan 940ASR More robust design of standard 900 series flame retardant grade.

Lexan 943 Opaque colors, medium viscosity, superior flame retardance.

Lexan 943A Medium viscosity, superior flame retardance.

Lexan 943ASR More robust design of standard 900 series flame retardant grade.

Lexan 950 Opaque colors, high viscosity, superior flame retardance.

Lexan 950A Transparent, clear and colors, high viscosity, flame retardant with exceptional surface.

Lexan 953 Opaque colors, high viscosity, superior flame retardance.

Lexan 953A Clear, tints and opaque colors, high viscosity, flame retardant with exceptional surface.

Lexan 121 Nonhalogenated. 17.5 MFR, for small intricate parts.

Lexan 121R Nonhalogenated. 17.5 MFR, for small, intricate parts.

Lexan 123 Nonhalogenated. 17.5 MFR, for small, intricate parts.

Lexan 123R Nonhalogenated. 17.5 MFR, for small, intricate parts.

Lexan 141 Nonhalogenated. 10.5 MFR.

Lexan 141R Nonhalogenated. 10.5 MFR.

Lexan 143 Nonhalogenated. 10.5 MFR.

Lexan 143R Nonhalogenated. 10.5 MFR.

Lexan 201R 7.0 MFR, for thicker sections without sinks. Improved flame retardance.

Lexan 203R 7.0 MFR, for thicker sections without sinks. Improved flame retardance.

Lexan 221R 17.5 MFR, for small, intricate parts.

Lexan 223R 17.5 MFR, for small, intricate parts.

Lexan 241R 10.5 MFR. Improved flame retardance.

Lexan 243R 10.5 MFR. UV-stabilized. Improved flame retardance.

Lexan EM1210 Automotive interiors. Excellent heat/impact resistance and outstanding

Lexan EM2212 Automotive interiors. 10% glass-reinforced.

Lexan EM3110 Automotive interiors. Optimizes flow/processability for cost effective thinner wall design uses.

Lexan EM3110R Automotive interiors. Optimizes flow/processability for cost effective thinner wall design uses.

Lexan HF1110 General purpose grade. Good clarity, heat resistance, property retention and dimensional stability.

Lexan HF1110R High flow grade. Easy mold release version of LEXAN HF1110.

Lexan HF1130 UV-stabilized. Good clarity, heat resistance, property retention and dimensional stability.

Lexan LI1813R Low-viscosity multi-purpose PC having low levels of ionics species.

Lexan LI1911R Low-viscosity multi-purpose PC having low levels of ionics species.

Lexan ML3729 PC, Mold Release, UV-Stabilizer, Heat Stabilized,

Lexan 3412HF 20% glass reinforced, high flow PC. UL rated V-1 at 0.059",

Lexan 3412R 20% GR, provides improved mechanical properties and UL94 V-1 rated at 0.058&＃39;.

Lexan 3413HF 30% glass reinforced, high flow PC.

Lexan 3413R 30% GR, provides improved mechanical properties and UL94V-1 rated at 0.058".

Lexan 3414R 40% GR, provides improved mechanical properties and UL94V-1 rated at 0.058".

Lexan 3433R 30% GR, provides improved mechanical properties. UV-stabilized. Internal mold release.

Lexan 500 10% GR PC. Optimum combination of high modulus plus excellent impact strength and flame retardance.

Lexan 500R 10% GR PC. Optimum combination of high modulus plus excellent impact strength and flame retardance.

Lexan 503 10% GR PC. Optimum combination of high modulus plus excellent impact strength and flame retardance.

Lexan 503R 10% GR PC. Optimum combination of high modulus plus excellent impact strength and flame retardance.

Lexan 4251R PPC+EXL, Mold Release, Heat Stabilized, High Impact, Opaque.

Lexan 4301 PPC+PC, Mold Release, Opaque,

Lexan 4401R PC/PPC Blend. Contains mold release.

Lexan 4501 High heat resistant polyphthlate carbonate, provides DTUL of 290F at 264 psi.

Lexan 4701R High heat resistant polyphthlate carbonate, provides DTUL of 300F at 264 psi.

Lexan 124 17.5 MFR, for small, intricate parts. FDA food contact compliant in limited colors.

Lexan 124R 17.5 MFR, for small, intricate parts. UL rated HB. 200 series recommended when V-2 rating required.

Lexan 144 10.5 MFR. FDA food contact compliant in limited colors.

Lexan 144R MFR 10.5. Internal mold release. FDA food contact compliant in limited colors.

Lexan 4504 High heat resistant PC copolymer, WITH DTUL OF 290F AT 264 psi.

Lexan 4704 High heat polycarbonate copolymer, with DTUL of 300F at 264 psi.

Lexan HF1140 Ideal for disposables/short life cycles.

Lexan HF1140R High flow grade. Heat stabilized. Enhanced level of mold release.

Lexan OQ4120R Optical grade with UV cut-off up to 400 nm, greater optical purity than standard grades.

Lexan OQ4320R Optical grade with UV cut-off up to 400 nm; greater optical purity than standard grades.

Lexan OQ4620R Optical grade with UV cut-off up to 400 nm, greater optical purity than standard grades.

Lexan OQ2720 Ophthalmic/safety lens market. OQ2xxx series in all transparent tints.

Lexan 3412ECR Lexan* 3412ECR Polycarbonate (PC) resin is a 20% glass fiber filled

Lexan 500ECR Lexan* 500ECR Polycarbonate (PC) resin is a 10% glass fiber filled, injection moldable grade.

Lexan 505R Polycarbonate (PC) resin is a 10% glass fiber filled

Lexan 915R Polycarbonate (PC) resin is a non-filled, injection moldable grade featuring non-chlorinated,

Lexan 925 Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 925A Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 925AU Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 925U Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 945 Polycarbonate (PC) resin is a non-filled, injection moldable grade.

Lexan 945A Polycarbonate (PC) resin is a non-filled, injection moldable grade.

Lexan 945ASR Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated,

Lexan 945AU Polycarbonate (PC) resin is a non-filled, injection moldable grade.

Lexan 945U Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 955 Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 955A Polycarbonate (PC) resin is a non-filled, injection moldable grade. This non-chlorinated

Lexan 955AU Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 955U Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan 9945A Polycarbonate (PC) resin is a non-filled, injection moldable grade of non-chlorinated

Lexan BFL2000 PC, Flame Retardant, Mold Release, Opaque

Lexan BFL2000U Polycarbonat (PC) resin is an injection moldable grade containing non-brominated

Lexan BFL2010 Non-Brominated, Non-Chlorinated Flame retardant PC.

Lexan BFL2015 Non-Brominated, Non-Chlorinated Flame retardant PC.

Lexan BFL4000U Lexan* BFL4000U Polycarbonate resin is an injection grade.

Lexan BPL1000 Polycarbonate (PC) resin is an injection moldable grade of non-chlorinated

Lexan LS1 Automotive lens applications. Low viscosity.

Lexan LS2 Automotive lens applications. Medium viscosity.

Lexan LS3 Automotive lens applications. Medium-high viscosity.

安全性爭(zhēng)議

由于制造聚碳酸酯中需要添加雙酚A，而雙酚A作為一種化工原料，2008年4月18日已經(jīng)被聯(lián)邦政府正式認(rèn)定為有毒物質(zhì)，并嚴(yán)禁在食品包裝中添加，所以，聚碳酸酯的安全性是值得注意的問題。歐盟認(rèn)為含雙酚A奶瓶會(huì)誘發(fā)，從2011年3月2日起，禁止含生產(chǎn)化學(xué)物質(zhì)雙酚A(BPA）的*奶瓶。中國(guó)衛(wèi)生部等部門發(fā)布公告稱，2011年9月1日起禁止和銷售聚碳酸酯嬰 幼 兒奶瓶和其他含雙酚A的嬰幼兒奶瓶，由生產(chǎn)企業(yè)或商負(fù)責(zé)召回。