Introduction to Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

ヒドロキシプロピルメチルセルロース (HPMC), 中国名はヒドロキシプロピルメチルセルロース, 半合成です, 天然セルロースを化学修飾して得られる非イオン性セルロースエーテル. この白い粉末は水に溶けると透明な粘稠な溶液になります。. 増粘性に優れています, 保水性, 安定性とフィルム形成特性. 建築など多くの分野で欠かせない多機能添加剤です。.

Characteristics and advantages of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

優れた水溶性: 冷水に素早く溶解し、透明で安定した溶液を形成します。.

効率的な増粘と保水力: 材料の粘度を上げる, 水分の蒸発を効果的に減らす, 作業効率を向上させます.

優れた安定性: 酸に対する安定性が良い, アルカリ, と塩, 幅広い pH 値に適しています.

皮膜形成効果と保護効果: 乾燥後, 丈夫で透明な膜を形成して基材を保護し、水の浸透と蒸発を防ぎます。.

非毒性、非刺激性: 生体適合性が良く、医療・食品分野に適しています。.

調整可能性: 置換度や分子量を変えることで, さまざまなアプリケーション要件に合わせてパフォーマンスを調整できます.

Specifications of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

Specifications of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

製品概要

HPMC E5 is a low-viscosity grade of hydroxypropyl methyl cellulose. It dissolves easily in cold water and forms clear, 安定したソリューション. This makes it ideal for use in film coatings for tablets and capsules. The product meets pharmacopeial standards including USP-NF, 博士. ユーロ。, そしてJP.

主要な物理的特性

粘度: 4–6 mPa·s (で測定 2% 解決, 20℃)
メトキシル含有量: 19–24%
Hydroxypropoxyl content: 4–12%
pH (2% 解決): 4.0–8.0
水分含有量: ≤5%
灰分含有量: ≤1.5%

Performance in Coating Systems

HPMC E5 gives smooth, uniform films with good adhesion to tablet surfaces. It dries quickly during the coating process, which helps reduce production time. The polymer does not require organic solvents—water alone is enough for dissolution. This supports safer, more environmentally friendly manufacturing. Films made with HPMC E5 are flexible and resist cracking under normal handling conditions. They also allow controlled release of active ingredients when needed.

取り扱いと保管

Store HPMC E5 in a cool, 直射日光の当たらない乾燥した場所. Keep containers tightly closed to prevent moisture absorption. The material remains stable for up to 36 適切に保管された場合は数か月. Avoid contact with strong oxidizing agents. 取り扱い中は標準的な産業衛生慣行を使用してください.

Regulatory Compliance

This grade complies with current Good Manufacturing Practice (cGMP) ガイドライン. It is suitable for use in pharmaceutical products approved by major regulatory agencies worldwide. Certificates of Analysis and Compliance are available upon request.

Applications of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

Applications of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 in Coating Systems

Enhanced Film Formation and Surface Smoothness

Low viscosity HPMC E5 works well in water-based coating systems. It helps form smooth, even films during drying. The polymer dissolves quickly in cold water, which makes mixing easy and fast. This leads to better surface uniformity and fewer defects like streaks or bubbles.

Improved Workability and Application Performance

Coatings with HPMC E5 show good flow and leveling. Painters find these products easier to apply with brushes, rollers, or sprayers. The additive reduces splatter and drag, giving a cleaner finish. It also keeps pigments and fillers evenly suspended, so the mixture stays stable over time.

Strong Adhesion and Durability

HPMC E5 boosts adhesion to common surfaces such as drywall, 木材, そして石積み. It forms a flexible film that moves slightly with temperature changes. This flexibility helps prevent cracking or peeling under stress. The coating remains intact longer, even in humid or changing conditions.

Water Retention for Better Curing

In cement-based or plaster coatings, HPMC E5 holds water in the mix. This gives cement particles more time to hydrate fully. 結果として, the final layer gains better strength and bonds more tightly to the substrate. Reduced water loss also means fewer surface flaws like pinholes or dusting.

互換性と安定性

HPMC E5 mixes well with other common ingredients in coatings—such as thickeners, 分散剤, および防腐剤. It does not react badly with most additives. The solution stays clear and consistent, even after long storage. This reliability helps manufacturers keep production smooth and reduce waste.

会社概要

当社は、軽量コンクリートと高度な人工発泡ソリューションの世界的リーダーです。. 研究への取り組みで世界的に知られている, 革新, そして応用された専門知識, 当社は 2012 年代初頭から人工発泡ソリューションを提供してきました。.

高品質なコンクリート混和剤および発泡コンクリート関連製品を世界中に供給できます。.

会社には専門の技術部門と品質監督部門があります。, 設備の整った研究室, 高度な試験設備とアフターサービスセンターを備えています.

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支払い

T/T, ウエスタンユニオン, ペイパル, クレジットカードなど.

出荷

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5 FAQs of Low Viscosity Hydroxypropyl Methyl Cellulose HPMC E5 for Coating Applications

よくある質問: Low Viscosity HPMC E5 for Coating Applications

What is HPMC E5?

HPMC E5 is a type of hydroxypropyl methyl cellulose with very low viscosity. It dissolves easily in cold water and forms a clear, スムーズな解決策. This grade is often used in coating applications where light film formation and good flow are needed.

Why choose low viscosity HPMC for coatings?

Low viscosity HPMC spreads evenly on surfaces. It helps the coating mix stay stable and prevents ingredients from separating. The thin consistency also makes spraying or brushing easier without clogging tools.

How does HPMC E5 improve coating performance?

HPMC E5 acts as a binder and thickener. It holds solid particles together and sticks them to the surface. It also slows down water loss, giving more time for the coating to level out and dry smoothly. This reduces cracks and improves finish quality.

Is HPMC E5 safe for use in coatings?

はい. HPMC E5 is non-toxic and widely approved for use in pharmaceuticals, 食べ物, and construction products. It does not react with other common coating ingredients. 製品ラベルに記載されている安全上の注意事項に従ってください。.

How should HPMC E5 be mixed into a coating formula?

Add HPMC E5 slowly to cold water while stirring. 他の成分を加える前に、十分に水分を含ませてください. Avoid using hot water—it can cause clumping. Proper mixing ensures even distribution and full performance benefits in the final coating.