Compounding — Process Challenge

플라스틱용 UV 및 광안정제(HALS)

야외용, 자동차용 및 농업용 플라스틱 생산업체는 UV에 의한 백화, 황변 및 취화를 방지하기 위해 광안정제를 첨가합니다. 시스템은 입사 UV를 차단하는 UV 흡수제(벤조트리아졸/벤조페논)와 광산화 사이클을 중단하는 HALS 라디칼 포획제로 구분되며, 구매자는 기능과 Tinuvin/Chimassorb 상표명으로 모두 검색합니다
Updated Jun 2026
솔루션 접근법

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Formulation Workflow
1
Polymer & Process Definition
Identify the resin and process (extrusion, molding, film) and the targets — thermal stability, clarity, flame retardance, slip, or color.
2
Additive Selection
Match stabilizers, antioxidants, plasticizers, lubricants, flame retardants, or masterbatch carriers to the polymer and processing temperatures.
3
Compounding Trial
Confirm loading and dispersion on a compounding or molding trial, checking processability, mechanicals, and aesthetics against the control.
4
Validation & Scale-Up
Verify long-term performance (heat aging, migration, weathering) and lock the formulation, packaging, and lot specs for production.
Recommended Chemistries (4)
UV-328 Benzotriazole UV Absorber (Tinuvin 328 Type)
CAS 25973-55-1
특수 첨가제
Organic UV absorber
Hydroxyphenyl-benzotriazole UV absorber; absorbs 300-380 nm UV and dissipates it as heat to protect the polymer from chain scission
Physical Description: Dry powder, pellets or crystals, or solid   Appearance: White to yellow powder or crystals   Solubility: In water, log -1.37
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Benzophenone-3
CAS 131-57-7
특수 첨가제
UV 차단
Benzophenone UV absorber; harmlessly dissipates absorbed UV energy as a low-cost broad screen
융점:66 °C   끓는점:150–160 °C at 5 mmHg   밀도:1.32 at 25 °C
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Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (HALS, Tinuvin 770 type)
CAS 52829-07-9
Hindered-amine light stabilizer; the nitroxyl/NO regenerative cycle scavenges chain-propagating free radicals to interrupt photo-oxidation (not a UV absorber) (source on demand)
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Polymeric HALS (Chimassorb 944 type)
CAS 71878-19-8
High-molecular-weight oligomeric HALS with low volatility and extraction resistance for thick sections and long outdoor service life (source on demand)
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