阿珂玛增韧剂8900 工程塑料增韧剂

介绍:lotader®ax8900是一种通过高压聚合工艺而得的乙烯，丙烯酸酯和甲基丙烯酸缩水甘油酯，无规三元共聚物，单体含量高。

主要应用:lotaderax8900是一种适用于工程塑料pa、聚酯（pbt.pet）、pc/pbt或pc/abs合金等冲击强度的增韧剂，同时可用作聚酯聚烯烃混合的相容剂以及复合材料的黏合剂。

terpolymer ethylene – acrylic ester– glycidyl methacrylate (gma)
description
lotader® ax 8900 is a random terpolymer of ethylene, acrylic ester and glycidyl methacrylate,
polymerized under high pressure in an autoclave process. comonomer content is high.
main applications
due to its properties (reactivity, softness), lotader® ax 8900 is an additive (toughener) of choice
in order to improve the impact strength of engineering thermoplastics like pa, polyesters (pbt, pet.),
pc/pbt and pc/abs alloys, pps. it can also be use as a compatibilizer for polyesters/polyolefins
blends and as an adhesive for some laminate structures.
typical characteristics
characteristics value unit test method
melt index (190°c / 2,16 kg) 6 g/10mn astm d 1238
methyl acrylate content 24 % wt ftir (internal)
glycidyl methacrylate content 8 % wt ftir (internal)
main properties
· acrylic ester brings softness and polarity, while keeping high thermal stability during
processing.
· the high content of acrylic ester leads to high flexibility (low cristallinity) and high impact
absorption behaviour.
· glycidyl methacrylate gives reactivity (versus oh, cooh and nh2 groups), leading to
optimale dispersion during melt mixing with engineering thermoplastics.
· as an ethylene copolymer, lotader® ax 8900 is compatible with ldpe in all proportions,
and with almost all other ethylene copolymers.
· good adhesion on pet, pbt, pps, metal, paper, glass..
processing
· heat stability of acrylate comonomers allows processing temperatures as high as for
polyesters (pbt, pet) and pps, which are the main material using lotader® ax 8900 as
impact modifier. nevertheless, to minimize the generation of gels, it is recommended to purge
the equipment after a run is completed as lotader® ax 8900 is able to crosslink with time
and temperature.
· lotader® ax 8900 is not corrosive.
warning
lotader ax 8900 reacts with maleic anhydride and acid containing polymers. this reaction can be the cause of gels or can
block an extruder if not controlled. extruders must be purged thoroughly before and after extruding lotader ax 8900.
physical properties
characteristics value unit test method
density (23°c) 0.94 g/cm3 iso 1183
melting point 65 (140) °c (°f) dsc
vicat softening point (1 kg) < 40 (< 104) °c (°f) astm d 1525 / iso 306
young’s modulus 8 mpa astm d 638 type iv
elongation at break (1) 1100 % astm d 638 type iv
tensile strength at break (1) 4 mpa astm d 638 type iv
flexural modulus (1) < 30 mpa astm d 790 / iso 178
hardness shore a (1) (1 second) 64 - astm d 2240
hardness shore d (1) (1 second) 18 - astm d 2240
(1) on compression molded samples.
packaging
lotader® ax 8900 is commonly packed in 25 kg waterproof bags or 500 kg rigid containers with
waterproof liner. during storage, the material must be kept out of moisture in an aerated building at a
temperature lower than 45°c (112°f).
security / precautions of use
a safety data sheet as well as information on handling and storage of the lotader® ax 8900 are
available close to your correspondent arkema or on the sitewww.arkema.comunder heading fds.
september 2006
the information contained in this document is based on trials carried out by our research centers and data selected from the literature, but shall in no event be
held to constitute or imply any warranty, undertaking, express or implied commitment from our part. our formal specifications define the limit of our commitment.
no liability whatsoever can be accepted by arkema with regard to the handling, processing or use of the products concerned which must in all cases be
employed in accordance with all relevant laws and/or regulations in force in the country or countries concerned.
technical polymers division
4/8, cours michelet – la défense 10
92800 puteaux - france
www.arkema.comwww.lotader.com
arkema société anonyme au capital de 520 868 934 euros - 319 632 790 rcs nanterre