acid acceptor

acid acceptor

[′as·əd ək′sep·tər]
(organic chemistry)
A stabilizer compound added to plastic and resin polymers to combine with trace amounts of acids formed by decomposition of the polymers.
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References in periodicals archive ?
To solve this problem, Yokohama Rubber mixed an acid acceptor into the polyamide resin to enable it to capture and hold the acid runoff.
Haistab 1214 is a nontoxic acid acceptor for rigid PVC that reportedly improves the performance of organotin heat stabilizers in extruded products, such as vinyl siding or profile.
Users gain the flexibility of producing a wide range of end-use tailored compounds from either reactor flake or granule or from a basic compounded pellet containing only antioxidant and acid acceptor.
The optimization of the acid acceptor system, particularly the amount of magnesium oxide used (refs.
HSA 10 is a micronized, high activity MgO for use as a scorch retarder in chloroprene and fluoroelastomers, as a thickening agent for SMC/BMC, and as an acid acceptor in halogenated and chloroprene adhesives.
If the next higher UL rating, 105 [degrees] C, is desired, this is also readily accomplished (table 4) by using a less volatile plasticizer, a more efficient acid acceptor, and an antioxidant which will not interfere with a peroxide cure.
Viton is a fluorocarbon resin that is mixed with a filler, such as carbon black; acid acceptors, such as magnesium oxide (MgO); and curing agents before being cured into a fluoroelastomer material and sold as Viton O-rings.
Additional process factors that increase costs are rheological variability due to hygroscopic acid acceptors, mold sticking and difficulty dispersing an additional compound ingredient, calcium hydroxide.
A commercially available fluoroelastomer material with a fluorine content of 66% was compounded with acid acceptors and fillers.
Acid acceptors improve compression set and stabilize the material without post curing.
The fluoroelastomer fomulation consisted of fluoroelastomer, carbon black, acid acceptors and a wax.
This would then affect the activity of the acid acceptors, which would change the cure rate.