R78

What it is. R78 is a rubber/plastic hydrophilic agent: official category field 'Hydrophilic Agent' (English category name 'Hydrophilic Agent'), official one-liner 'Rubber/plastic universal hydrophilic treatment' (English counterpart phrase 'Rubber/plastic hydrophilic'), mechanism field 'surface hydrophilic modification'—its function is defined as hydrophilic modification of hydrophobic polymers such as plastics, rubber, and elastomers, via a blend modification route. Official overview sentence verbatim: 'Hydrophilic Agent R78 is a hydrophilic agent developed by our company that has a super hydrophilic function for products such as plastics and rubber.' (Data source: product handbook / official product data)

Name and spelling. The handbook-layer TDS page title verbatim 'Rubber/plastic hydrophilic agent R78'; table of contents line verbatim 'R78: Rubber/plastic hydrophilic agent'. Official full name 'Rubber/plastic hydrophilic agent R78', English name 'Rubber/Plastic Hydrophilic R78', traditional name 'Rubber/plastic hydrophilic agent R78'; official website list title (Chinese) 'Rubber/plastic hydrophilic agent', (English) 'Hydrophilic agent for rubber and plastics'. Detail page layer: main title 'Rubber/plastic hydrophilic agent', subtitle 'Super hydrophilic function · White powder · Polyether polyol', header 'TECHNICAL DATA SHEET · TDS-R78 · REV 2026-09 · CN', navigation label 'Rubber/plastic hydrophilic · TDS'. (Data source: product handbook / official product data)

Attribution and coordinates. Handbook layer: listed within the comprehensive series section of the product catalog as a separate line (with the Q90 line above and the R77 line below). Official layer: listed in the comprehensive series (list position 2); application domains registered at two layers—film packaging domain (domain registration includes this grade) and fiber/textile domain (domain note names this grade); industry-side mapping is plastics / rubber. (Data source: product handbook / official product data)

What it is not. It is not the similarly numbered R780 (official full name 'Hyperdispersant for dyes R780', category 'Hyperdispersant'); it is not R77 / R77F, which are in the water- and oil-repellent direction in the same series; it is not R800 / R800F, which are in the anti-fog and anti-drip direction; it is not the same product as Q90, its close neighbor in the same category; it is not the masterbatch / resin / filler itself; the data does not describe it as a pairing, replacement, upgrade, or derivative relationship of any grade. (Data source: product handbook / official product data)

Data boundaries. The data provides the overview sentence, main component, five physicochemical property items, main use, performance and applications, usage method, packaging, and storage conditions; it does not list dosage / addition level column, shelf life, transport terms, processing temperature window, feeding sequence / mixing method details, precautions / safety notes / disclaimer, or test methods; the values below are as recorded in the data and are not performance promises. (Data source: product handbook / official product data)

Composition. The handbook's 'Main component' is verbatim 'polyether polyol'; the official component field is from the same source and has the same value—a rubber/plastic hydrophilic modification additive with polyether polyol as the core; the specific grade, polymerization structure, and formulation ratio are not given in the data and are not assumed. (Data source: product handbook / official product data)

Performance and applications (verbatim transcription). The entire paragraph verbatim: 'This product is a nonionic surfactant, soluble in water, alcohol, and other solvents. Non-toxic, non-corrosive, no environmental pollution. It can be used alone in water-soluble form on fabrics or added to resins. Suitable for various fibers, such as: polyester, nylon, cotton, wool, rayon, etc. It can significantly improve fabric hand feel, antistatic property, and can enhance wash resistance and stain resistance.' Five key points: nonionic surfactant; soluble in water, alcohol, and other solvents; non-toxic, non-corrosive, no environmental pollution; two usage forms (direct use on fabrics / addition into resins); four textile-direction items (improve hand feel, antistatic, wash resistance, stain resistance). All are qualitative statements and are not accompanied by quantified values. (Data source: product handbook)

Main use and usage method (verbatim). [Main use] verbatim 'Improve the hydrophilic performance of polymers such as plastics and rubber'; [Usage method] verbatim 'Rubber/plastic hydrophilic agent R78 is used for blend modification of hydrophobic polymers such as plastics, rubber, and elastomers to improve the hydrophilic performance of hydrophobic polymers. Generally, it needs to be first mixed with resin and pelletized together, and then injection molded or extruded into products!'—the route is first blend pelletizing, then injection molding or extrusion. (Data source: product handbook)

Mechanism reading. Three lines: first, the nonionic surfactant direction (this product's own category description)—it provides water-soluble / alcohol-soluble usable forms; second, the blend modification route—first mix with resin and pelletize, then injection mold or extrude, to improve the hydrophilic performance of hydrophobic polymers; third, the official mechanism field 'surface hydrophilic modification'. The official one-liner 'Rubber/plastic universal hydrophilic treatment' summarizes its treatment object as rubber/plastic-type systems. (Data source: product handbook / official product data)

Detail-page mechanism layer (page-based presentation, not measured imagery). First-screen demo title 'DISSOLUTION STAGE / powder entering water · stirring to dissolve' (labeled 'R78 white powder ↓' 'readily soluble in water · dissolves upon stirring'); section heading 'SEC.01 / HYDROPHILIC MECHANISM', title 'Before and after hydrophilization · mechanism and performance', section note verbatim 'Water droplets bead up on the surface of hydrophobic polymers; after adding R78, water droplets spread—hydrophilic performance is intuitively visible.'; two-state comparison labels 'BEFORE · hydrophobic polymer · water droplets bead up' '+R78 · hydrophilized · water droplets spread'; two step cards (FUNCTION 'Improve polymer hydrophilic performance' / SURFACTANT 'Soluble in water and alcohol · non-toxic and non-corrosive'). Reading: the water dissolution and before/after comparison are expressions that illustrate the mechanism for visitors; they are not measured imagery and do not constitute indicator citations; this page does not make quantitative statements based on them. (Data source: official product data)

Performance boundaries. The overview, performance and applications, and mechanism field are all directional statements: there is no quantitative data such as contact angle, surface tension, or hydrophilic durability. This page does not extrapolate or promise. (Data source: product handbook / official product data)

1. Key point 1Nonionic surfactant direction (this product's own category description)—provides water-soluble / alcohol-soluble usable forms
2. Key point 2Blend modification route—first mix with resin and pelletize, then injection mold or extrude, to improve the hydrophilic performance of hydrophobic polymers
3. Official mechanism field 'surface hydrophilic modification'. OfficialOfficial mechanism field 'surface hydrophilic modification'. The official one-liner 'Rubber/plastic universal hydrophilic treatment' summarizes its treatment object as rubber/plastic-type systems. (Data source: product handbook / official product data)

[Key physicochemical indicators] Five items verbatim (primary basis) (Data source: product handbook)

Readout note. ① Record the five items layer by layer: the handbook layer gives 'Appearance:white powder', 'Flash point::315℃' (the double colon is the typographic form in the source text), 'Density:(25,g/cm):0.91-0.96', 'Active content:100%', 'Water solubility:easily soluble in water'; the detail page layer gives '315 ℃', '0.91 – 0.96' — retain item by item, do not merge; ② This grade has no other physicochemical items such as viscosity, PH value, or solid content; do not fill in with other grades; ③ Each of the five items has only one set of values; no multiple values coexist. (Data source: product handbook / official product data)

Let the conclusion be clear first: the materials for this grade do not provide a dosage column ⇒ this page does not give a dosage value, nor does it formulate a denominator on its own. The three layers are examined layer by layer as follows. (Data source: product handbook / official product data)

Three points must be made clear. 1. There is no situation of 'two bases listed side by side' — neither the handbook layer nor the detail page layer has a dosage value ⇒ there is no value to cite. 2. In the official data layer, this value has a value but no source; it has been isolated and is not used on this page, pending confirmation from the data source side. 3. This grade has no thickness-dosage direction clause — the materials have no wording such as 'add more as it gets thinner / add less as it gets thinner'; this page does not state it and does not apply direction conclusions from other grades. (Data source: product handbook / official product data)

Demand-side note. The sample form example sentence on the detail page, verbatim: 'For example: rubber product surfaces are hydrophobic, fabric hand feels poor, and I would like to request samples to test a blend granulation solution…' — a use-case-style note, without a dosage value; for the actual addition amount, please request the accompanying technical documents by specific item number and conduct a small-scale trial. (Data source: official product data)

Target systems (verbatim, see the [Method of Use] sentence in Section 2). Target = hydrophobic polymers such as plastics, rubber, and elastomers (blend modification route: first mix with resin and pelletize, then injection mold or extrude); the [Main Applications] sentence is in the same direction: 'improve the hydrophilic performance of polymers such as plastics and rubber'. (Data source: product handbook / official product data)

Target systems (verbatim, see the [Method of Use] sentence in Section 2)

Target = hydrophobic polymers such as plastics, rubber, and elastomers (blend modification route: first mix with resin and pelletize, then injection mold or extrude); the [Main Applications] sentence is in the same direction: 'improve the hydrophilic performance of polymers such as plastics and rubber'. (Data source: product handbook / official product data)

Textile / fiber direction (Performance and Applications sentence)

The materials give two usage forms in the same paragraph: 'can be used alone in water-soluble form on textiles or added into resin for use'; applicable fiber examples 'polyester, nylon, cotton, wool, rayon'; four textile-direction items 'improve fabric hand feel, antistatic, and can enhance wash resistance and stain resistance' — all qualitative statements. (Data source: product handbook)

Official application tags and domain coordinates

Official application tag (data layer), one item: 'rubber/plastics hydrophilic'; application domains are registered in two layers — film packaging domain and fiber textile domain (the domain note names this grade); the industry-side mapping is two categories: plastics / rubber. (Data source: official product data)

Detail page application layer

Block heading 'SEC.03 / APPLICATION & PROCESS', title 'Method of Use · Two-Step Process'; block note 'First blend with resin and pelletize, then injection mold or extrude — process route in the source file.'; two-step cards 'STEP 1 · Blend Granulation' 'STEP 2 · Molding'; form use checkboxes, five items 'Plastic hydrophilic modification / Rubber / Elastomer hydrophilic modification / Fabric hand feel / Antistatic finishing / Fiber (polyester/nylon/cotton/wool) / Other'. (Data source: official product data)

Boundaries

R78 covers the hydrophilization of hydrophobic polymers such as rubber/plastics and elastomers via blend modification, and is not the same thing as water and oil repellency (R77 / R77F), anti-fog and anti-drip (R800 / R800F), or dye dispersion (R780). Masterbatch side: masterbatch-type materials and the official data layer show no corresponding entry for this grade, and no 'internal use' type mapping — state 'no correspondence', do not infer. (Data source: product handbook / official product data)

Field issues & application examples (as recorded in the source material)

Conclusion first. The model most likely to be associated by number is R780 (number visually similar to 'R78 + 0'); next is R800 / R800F (digits visually similar to 'R8_'); the nearby models in the same series functional line are R77 / R77F (water- and oil-repellent direction—opposite to the hydrophilic direction, lower neighbor) and Q90 (same category · upper neighbor). At the data level they are independent: each has its own page and official entry, not written as a parent/child code or substitution relationship—values are not copied from one another. (Data source: product handbook / official product data)

Reading note: This comparison only explains each model's documentation positioning and applicable targets; values for each model must not be cross-applied; identification is based on the official full name and category field. (Data source: product handbook / official product data)

The following points are taken item by item from source records; items not listed in the source are not drafted on this page.

The data on this page comes from two types of sources, traceable item by item:

• Two types of factual sources: product handbook (main volume / edited version / comprehensive series special volume, mutually corroborating the same text) and official product data (product fields, series catalog and application-domain data, detail page copy and multilingual naming); sources are cited alongside the text and can be checked back item by item.
• Section 6's similar-looking model numbers and neighboring-position cross-reading: name, category, mechanism, target, and page records are taken item by item from each model's own page records; values of each type are not written into the other's paragraphs.
• All values on this page are source-recorded values; for actual production, please conduct small-scale testing confirmation in combination with your own formulation, system resin, and processing conditions.

Not covered by the source material (not written on this page — to be added later)

• Official data layer dosage field is unsourced: this model's source does not set a dosage column, and the detail page has no dosage entry; the official data layer dosage field has a value but no source (not found in this model's various volume pages or detail page copy, and it is a historical supplementary entry) ⇒ handled according to 'source page prevails', handled in isolation, and not adopted on this page; pending confirmation from the source side.
• Flash point double-colon typography: handbook layer 'flash point::315℃' (consistent across four sources) is transcribed as is, not changed on its behalf; detail page layer reads '315 ℃'.
• Density notation differs between layers: handbook layer 'density:(25,g/cm):0.91-0.96' ↔ detail page layer 'density (25℃, g/cm³) 0.91 – 0.96'—transcribed layer by layer, not modified on their behalf.
• Missing quantitative effect data: no quantitative data such as contact angle, surface tension, or hydrophilic durability; the four fabric items (hand feel, antistatic, wash resistance, stain resistance) are qualitative statements.
• Missing clauses: dosage column, shelf life, transport, processing temperature window, safety notices, disclaimers, and test methods are not listed ⇒ not drafted on this page.
• Direction clause and adjacent-position relationships: no thickness-dosage direction clause (explicitly written as 'none'); no pairing or substitution relationship with any model (including R780 / Q90 / R77 / R77F / R800 / R800F) has been established.
• Similar-looking model number note: R780 ('R78+0'); R800 / R800F ('R8_'); R77 / R77F (same series, opposite direction); Q90 (same category, close neighbor)—for searching and model selection, the official full name and category field shall prevail.