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High Purity 3-Glycidoxypropyltrimethoxysilane GLYMO GPTMS Epoxy Silane Coupling Agent for Adhesion Promotion
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High Purity 3-Glycidoxypropyltrimethoxysilane GLYMO GPTMS Epoxy Silane Coupling Agent for Adhesion Promotion
| MOQ: | 500 г, 1 кг или 25 кг для образца, 1000 кг для коммерческого заказа. |
| Стандартная упаковка: | Вес нетто 25 кг или 200 кг/упаковка |
| Срок доставки: | Через 3 рабочих дня |
| Способ оплаты: | Т/Т, ЛК, ОА |
| Емкость поставок: | 3000 тонн/месяц |
Подробная информация
Место происхождения
Шаньси, Китай
Фирменное наименование
Zorui
Сертификация
ISO, COA, MSDS, TDS, AAA
Номер модели
2530-83-8
Название продукта:
3-глицидоксипропилтриметоксизилан
КАС:
2530-83-8
Образец:
Доступный
Порт:
Тяньцзинь, Шанхай, Циндао, Другие порты Китая
Торговый термин:
EXW, DAP, FOB, CFR, CIF, CPT, CIP
ПЕРЕВОЗКИ:
Образец экспресс-доставкой, 100 кг+ по воздуху, 1000 кг+ по морю
Хранилище:
Прохладное, сухое и хорошо проветриваемое помещение; избегать влаги и высокой температуры
Характер продукции
3-Glycidoxypropyltrimethoxysilane (CAS 2530-83-8)
Product Introduction
3-Glycidoxypropyltrimethoxysilane (CAS 2530-83-8) is a high-purity epoxy-functional silane coupling agent. It contains two reactive groups: a trimethoxysilyl group (inorganic reactive group) and an epoxy group (organic reactive group). This unique molecular structure allows it to bond inorganic materials (such as glass, metals, fillers) with organic polymers (resins, rubbers, plastics), significantly improving adhesion, mechanical strength, moisture resistance, and dispersion.
Synonyms: GLYMO, GPTMS, (3-Glycidyloxypropyl)trimethoxysilane, 3-(2,3-Epoxypropoxy)propyltrimethoxysilane.
Physical and Chemical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 2530-83-8 |
| Molecular Formula | C₉H₂₀O₅Si |
| Molecular Weight | 236.34 g/mol |
| Appearance | Clear, colorless to pale yellow liquid |
| Purity (GC) | ≥ 98% (standard grade) / ≥ 99% (high purity grade) |
| Epoxy Equivalent Weight (EEW) | 235 - 255 g/eq |
| Density (25 °C) | 1.065 - 1.075 g/cm³ |
| Refractive Index (n ²⁵/D) | 1.426 - 1.430 |
| Boiling Point | 120°C (2 mmHg) / 290°C (760 mmHg) |
| Flash Point | > 100°C (closed cup) |
| Chlorine Content | ≤ 10 mg/kg |
| Solubility | Soluble in alcohols, ketones, hydrocarbons; hydrolyzes in water |
Product Functions
- Adhesion Promotion: Dramatically improves dry and wet adhesion between inorganic surfaces (glass, aluminum, silica) and organic resins (epoxy, polyurethane, acrylic).
- Crosslinking Agent: Epoxy ring can react with amines, carboxyls, or anhydrides; methoxys groups co-condense with hydroxylated surfaces.
- Composite Strength: Increases flexural, tensile, and impact strength in fiberglass-reinforced plastics (FRP) and mineral-filled composites.
- Moisture & Corrosion Resistance: Enhances hydrolytic stability and anti-corrosion properties of coatings and sealants.
- Dispersion Aid: Optimizes filler dispersion (silica, alumina, mica) in polymer matrices.
Application Areas
| Industry | Specific Applications |
|---|---|
| Adhesives & Sealants | Epoxy, polyurethane, and hybrid sealants for automotive and construction. |
| Coatings | Anti-corrosion primers, marine coatings, metal pretreatment primers. |
| Fiberglass & Composites | Sizing agent for glass fibers; reinforcement in FRP, BMC, SMC. |
| Electronic Materials | Encapsulants, copper-clad laminates, LED packaging, semiconductor passivation. |
| Foundry & Abrasives | Resin-bonded sand cores, grinding wheels, and refractory binders. |
| Mineral Fillers | Surface treatment of silica, kaolin, calcium carbonate, talc. |
Manufacturing Process
- Hydrosilylation: Allyl glycidyl ethers is reacted with trimethoxysilane in the presence of a platinum catalyst (Karstedt's catalyst).
- Distillation: The crude product undergoes vacuum fractional distillation to remove unreacted raw materials, byproducts, and catalyst residues.
- Hydrolysis Control: Strict moisture-free conditions are maintained during synthesis to prevent premature hydrolysis of trimethoxysilyl groups.
- Purification: Final polishing filtration (≤1 μm) and stabilization (inhibitor added for storage) yields the finished product with >98% purity.
- Quality QC: GC, refractive index, density, epoxy value, and color (APHA) are tested per ISO/ASTM standards.
Why Choose Us
| Criterion | Our Commitment |
|---|---|
| Purity Options | 98% (industrial) / 99% (electronic grade) available |
| Supply Capacity | 50 - 200 MT/month, stable year-round |
| Packaging | 25 kg plastic drum, 200 kg steel drum, 1,000 kg IBC tote |
| Customization | Hydrolysis-stabilized formulations, low chlorine grade |
| Certifications | ISO 9001:2015, REACH registered, RoHS compliant |
| Technical Support | SDS, TDS, formulation guidance, and on-site troubleshooting |
| Logistics | Fast delivery via sea/air/rail; dangerous goods certified (Class 3, PG III) |
Frequently Asked Questions (FAQ)
Q1: Is 3-Glycidoxypropyltrimethoxysilane soluble in water?
A: It is not water-soluble but hydrolyzes in the presence of water, forming silanols and methanol. For aqueous systems, pre-hydrolyze in a water/alcohol mixture (pH 3.5-4.5).
Q2: How should GPTMS be stored?
A: Store in a tightly sealed container under dry nitrogen or dry air, away from moisture, heat, and direct sunlight. Recommended storage temperature: 5-30°C. Shelf life: 12 months.
Q3: What is the difference between CAS 2530-83-8 and CAS 2530-83-8 (low chlorine)?
A: Low-chlorine grade (Cl < 10 ppm) is specifically designed for electronic applications where residual chlorine can cause corrosion of metal circuits or failure in semiconductor devices.
Q4: Can GPTMS be used in waterborne coatings?
A: Yes. Pre-hydrolyze GPTMS in a mixture of deionized water, isopropanol, and acetic acid (to pH 4-5) before adding to the aqueous resin system.
Q5: What resins are compatible with GPTMS?
A: Epoxy, phenolic, melamine, polyurethane, acrylic, and polyester resins. The epoxy group is especially reactive with amine- or carboxyl-functional polymers.
Q6: Is this product dangerous for transport?
A: Yes. It is classified as UN 1993, Class 3 (Flammable liquid), Packing Group III. Proper dangerous goods documentation and packaging are required.
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