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An Analysis on Developing Situation and Market of Silane Coupling Agents in Domestic
2014-08-14
Usage and dosage of coupling agent
2020-06-11
1、Usage 1.Pretreatmentofpigmentsandfillers Althoughitisdifficulttocoattitanatecouplingagentonthesurfaceofpigmentsandfillersinadvance,thetreatmenteffectisbetter.Dissolvethecouplingagentinasmallamountoftoluene,xyleneandotherbenzenesolvents,addhumanpigmentsandfillers,andproperlyheatuptoabout100℃underhigh-speedstirring(about1000r/min),stirforabout0.5h,sothateachpigmentandfillersparticlescanbecoatedwithalayerofcouplingagent.Aftercoatingwithcouplingagent,thepigmentandfillercanbeusedtomakecoating. 2.Directadditionmethod Intheprocessofpaintmaking,couplingagentisdirectlyaddedbeforehigh-speedlaxity.Usesolventgasoline,xyleneandothersolventstodissolvetheweighedcouplingagent,disperseitintotheorganicbasematerial,participateinthehigh-speeddispersionofpigmentsandfillers,andthenmakethecoatingaccordingtotheusualmethod.Thewater-solublecouplingagentisusedforthewater-basedcoating,andthetreatmentmethodisasdescribedabove,withwaterasthesolvent. 2、Dosage Theoretically,theamountofcouplingagentistomakeallhydrophilicreactiongroupsinthecouplingagentreactwiththehydroxylorprotonsuppliedbythepigmentsandfillers.Thereisnoneedtoexcess,butinfact,themostappropriateamountshouldbedeterminedaccordingtotheparticlesizeofthepigmentsandfillersandthesituationofthesurfacefunctionalgroups.Therelationshipbetweenviscosityandamountofcouplingagentcanbeobtainedbyviscositymeasurement.Themostsuitableamountoftitanateisthebiggestpointofviscositydecrease.Accordingtotheexperience,theamountofcouplingagentshouldbe1%-2%oftheamountofsolidpigmentsandfillersinthecoating.Thefinertheparticlesizeofpigmentsandfillers,thelargerthesurfacedeposit,andthemorecouplingagentsareused. Inconclusion,titanatecouplingagentswithdifferentgroupscanbeplannedaccordingtotheneedsofthecoatingindustry,sothattheycanbecomespecificormultifunctionalauxiliaries, Author:silanecouplingagentsource:www.gbxfsilicones.com
Introduction and application of silane coupling agent?
2020-07-08
Introduction of methacryloxypropyl trimethoxysilane?
2020-07-09
Attention to the dosage of silane coupling agent KH560?
2020-07-12
Introduction of 3 (2,3-epoxypropoxy) propyl trimethoxysilane
2020-07-19
What are coupling agents and types?
2020-07-20
The role of organosilicon in environmental protection
2020-07-25
Silicone defoamer is basically made up of different materials. They will use different technologies to process, and present a decentralized mode. All raw materials and links are all without poison. They have the characteristics of relatively fast dispersion and fast consumption, and inhibit foam growth for a relatively long time. Layer characteristics.
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