From reactive phase to qualified particle
A controlled experimental route for manufacturing, stabilising and validating DISE droplets under measurable transport, thermal-dose and load-bearing conditions.
One integrated formulation. Three critical functions.
The programme tests whether DISE can combine low-viscosity delivery, a calibrated induction period and droplet-confined polymerisation without assuming that component-level precedent proves system-level performance.
Reproducible droplets
Generate a controlled 70–600 µm population and quantify D10, D50, D90, span, sphericity, doublets and agglomerates.
Controlled induction
Calibrate radical initiation against the complete temperature-time history, targeting a 25–75 minute operational window.
Functional particle pack
Measure morphology, fines, closure-stress endurance and retained hydraulic conductivity as development gates.
Seven linked stages with stop/go criteria
Two phases, one protected microreactor
Continuous aqueous phase
Qualified water or brine establishes the carrier. PVA-type protective colloid supplies steric stabilisation, while pre-wetted surface-modified silica forms Pickering interfacial armour. Salinity, pH, temperature and viscosity are recorded before release.
Transport target: η ≤ 10 cP
Reactive dispersed phase
Styrene/DVB provides the benchmark crosslinkable network. An oil-soluble initiator remains inside the droplets, while a separately controlled induction package protects storage stability and delivery time.
I → 2R• | kd(T)=A·e−Ea/RT
Delay is governed by accumulated exposure
The formulation is evaluated against the complete temperature-time history. Initiation becomes measurable only after the inhibitor capacity is depleted and the required thermal dose is reached.
Targets are hypotheses to be tested
DISE is an integrated TRL 3 platform transitioning towards TRL 4. These are development criteria, not claims of completed validation.
Particle-size envelope
Transport viscosity
Induction window
Fused multiplets
Closure-stress test
Retained flow target
The complete experimental manuscript
The 20-page report contains the batch record, preparation sequence, QC methods, transport and thermal-dose tests, mechanical and conductivity protocols, DOE structure, acceptance criteria, failure modes and references.
Safety and governance: Chemistry and HPHT work must proceed under an approved risk assessment, current safety data sheets, calibrated equipment and trained supervision. HPHT testing begins only after ambient behaviour and runaway controls have been bounded.
DISE 