R880

What it is. R880 is a compatibilizer—official category field 'Compatibilizer', English category name 'Compatibilizer'. The documentation defines it as 'a high-efficiency polymer material interfacial modification additive'; its function is to 'effectively solve compatibility issues when different materials are blended.' It acts on the interfacial stage of blending / modification, enabling two types of materials that do not readily combine to 'combine' at the interface layer. The official full name is verbatim 'Compatibilizer R880 for Plastic Graft Modification'; the English name is 'Graft Compatibilizer R880'. (Data source: product handbook / official product data)

Names and how they are written at each level. The technical data page title is verbatim 'Compatibilizer R880'; the product catalog line is verbatim 'R880: Compatibilizer for Plastic Graft Modification'; the official website list title and name key are both written as 'Compatibilizer for Plastic Graft Modification'; the detail page main heading is 'Compatibilizer · Interfacial Modification Additive', and the subheading is 'Maleic Anhydride × Polyol · Precision Reaction Synthesis · Two-Phase Stitcher'. (Data source: product handbook / official product data)

What problem it solves. The key to a blend system lies at the interface: when the interface 'cannot combine', the documentation's consequence statement is 'problems such as delamination of the blended material and decreased mechanical strength.' R880's solution is stated in its core advantages—'good compatibility with a variety of polymer materials and natural fillers, significantly improving the mechanical properties and processing stability of composites.' Its two major application directions are degradable plastic systems and general-purpose and engineering plastic modification (see Sections 2 and 5 in the original). (Data source: product handbook)

Official fields and series coordinates. The application list contains 14 items: PLA, PBAT, starch, wood flour, bamboo powder, PE, PP, ABS, PC, PS, PET, PA, POM, TPU; the main component field is 'maleic anhydride, polyol'; the dosage field is '0.2-1.0%'. R880 is included in the comprehensive series, at position 20 in the official website product list; the official application domain data places it in the 'Inorganic Powders and Filled Masterbatches' domain (with the in-domain note 'filler blend compatibility'). (Data source: official product data)

What it is not. It is not the masterbatch itself (this product is an additive, not a finished formulated pellet); it is not the resin or filler itself (it does not constitute the substrate, but works as an interfacial modification additive in a blend system); it is not a surface-coating type treatment agent; nor is it an additive for other functional directions such as anti-fogging, thermal insulation, or flame retardancy—those are models adjacent to its file but in different directions (see Section 6 for the boundary). (Data source: product handbook / official product data)

Documentation boundaries (stated upfront). The documentation for this grade provides only five sections: overview, product characteristics, main applications, dosage, and storage and handling precautions—there is no complete set of physicochemical specification tables, no dedicated experimental data tables or curves, no production-line or finished-product measured data, no processing temperature window or compatibility entries, and packaging and shelf life are also not listed. The values below are all as recorded in the documentation, not a performance promise for any particular product; for items not provided by the documentation, this page truthfully writes 'not listed' throughout, without drafting or inferring. (Data source: product handbook / official product data)

Overview sentence (verbatim). 'R880 compatibilizer is a high-efficiency polymer material interfacial modification additive, using maleic anhydride and polyol as core raw materials, synthesized through a precise reaction under the action of a specific catalyst; it has excellent interfacial bonding and compatibility-promoting ability, and can effectively solve compatibility issues when different materials are blended.' (Data source: product handbook / official product data)

Composition and synthesis (documentation's two-layer wording). The main components are verbatim 'maleic anhydride, polyol'—two types of raw materials 'synthesized through a precise reaction under the action of a specific catalyst'; that is, its process route is explained in the synthesis step: it is not simple compounding, but synthesis via reaction. (Data source: product handbook / official product data)

Mechanism (official level). The official mechanism field is 'maleic anhydride interfacial compatibility'; the one-sentence positioning is 'maleic anhydride compatibility, general-purpose for degradable + engineering plastics'—the mechanism keyword and application scope are given in the same sentence: the functional system with maleic anhydride as the core is responsible for interfacial compatibility, covering degradable plastics and engineering plastics. (Data source: official product data)

Mechanism (detail page visual layer). The official website detail page depicts it as an 'interfacial stitching station · two phases become one phase': the comparison image caption reads 'without compatibilizer · weak interface · delamination · decreased mechanical strength'; after adding R880, the visual gives the stitch reading 'maleic anhydride end anchors the filler phase · polyol chain dissolves into the resin phase · two phases stitched into one', and labels it 'Schematic: grafted molecules anchor across the interface = "stitching"'—this layer is a visual schematic, not measured data. (Data source: official product data)

Effect statements (as stated in the documentation). The core advantage sentence is verbatim: 'good compatibility with a variety of polymer materials and natural fillers, significantly improving the mechanical properties and processing stability of composites'; the application sentence also records 'improving comprehensive properties such as impact strength, tensile strength, and heat resistance of modified materials.' The detail page mechanical meter carries the label 'qualitative comparison before and after adding R880 (schematic, not measured values)'—all are statements recorded in the documentation and at the schematic level, without experimental conditions attached, and do not constitute product performance commitments. (Data source: product handbook / official product data)

Parts not provided by the documentation. Molecular-level details of the dispersion / grafting mechanism (indicators such as grafting ratio and acid value), experimental data tables and curves, and performance comparisons at different addition amounts—none are given on this grade's page; they are not drafted or inferred. (Data source: product handbook / official product data)

For this grade, the technical data page [Product Features] is transcribed verbatim as follows:

Reading notes (three items). First, the form is liquid—feeding and metering are handled as a liquid additive; specific settings are subject to the plant's process validation. Second, "9 types" can be counted yourself: counting PE, PP, ABS, PC, PS, PET, PA, POM, TPU item by item gives exactly 9 items, consistent with the resin list in the use sentence; for the "6 items" of natural fillers, only three items—starch, wood flour, and bamboo flour—are named, with the rest indicated by an ellipsis—record the count as is, do not add column names. Third, presentation-layer numbers are not acceptance specifications: 0.2 – 1.0%, 9 types, 2 major, and 6 items are all recorded values from the data page and the official website presentation layer, for selection comparison; production startup is subject to the technical documents supplied with the goods and the plant's small-scale trials. (Data source: official product data)

R880's dosage basis is a single basis, but the denominator must be read accurately: the denominator is the "final article"—that is, R880's share in the final article as a whole, not the resin raw material, the masterbatch stage, or the powder metering stage. (Data source: product handbook / official product data)

Three points must be made clear. First, the denominator cannot be converted across layers: the "final article" is not the same as the masterbatch addition stage or the powder metering stage—0.2% - 1.0% cannot be used to infer masterbatch formula ratios, nor can the dosage ranges of other grades be applied (R66's denominator is the "plastic final product"; R800 / R800F use a "direct addition" basis and have separate gradations; cross-grade conversion does not hold). Second, the range is a documented record, not a commitment: no experimental conditions are attached; actual values depend on the substrate combination, formulation, and target performance; per the source text, "may be appropriately adjusted according to the substrate combination, formulation requirements, and target performance indicators", subject to the plant's small-scale trials. Third, direction clause: none—this grade's documentation gives no thickness-dosage direction clause; this page does not state a direction or apply direction conclusions from other grades. (Data source: product handbook / official product data)

The above are documented values; for actual production, please conduct small-scale trial confirmation in combination with your own system and process. (Data source: product handbook / official product data)

Two main scenarios (two in the source text). First, degradable plastics systems: "Efficiently improves the compatibility of degradable plastics such as PLA and PBAT with natural fillers such as starch, wood flour, and bamboo flour, avoiding problems such as delamination of the blended material and decrease in mechanical strength." Second, general-purpose and engineering plastics modification: "Widely used for graft modification of plastics such as PE, PP, ABS, PC, PS, PET, PA, POM, and TPU, improving comprehensive properties such as impact strength, tensile strength, and heat resistance of the modified material." (Data source: product handbook)

Two main scenarios (two in the source text)

First, degradable plastics systems: "Efficiently improves the compatibility of degradable plastics such as PLA and PBAT with natural fillers such as starch, wood flour, and bamboo flour, avoiding problems such as delamination of the blended material and decrease in mechanical strength." Second, general-purpose and engineering plastics modification: "Widely used for graft modification of plastics such as PE, PP, ABS, PC, PS, PET, PA, POM, and TPU, improving comprehensive properties such as impact strength, tensile strength, and heat resistance of the modified material." (Data source: product handbook)

Official application list

The official application field reads item by item: PLA, PBAT, starch, wood flour, bamboo flour, PE, PP, ABS, PC, PS, PET, PA, POM, TPU (the first five = combination of degradable plastics and natural fillers; the latter nine = graft-modified resin scope). (Data source: official product data)

Application domain coordinates

The official application domain data places R880 in the "inorganic powder and filled masterbatch" domain (domain note: "filling/blending compatibility")—it handles interfacial compatibility on the "filling / blending" line. (Data source: official product data)

Changes at the user end (documented)

Improved mechanical properties and processing stability, and avoidance of delamination and strength decrease in the blend system—all are documented values; actual performance depends on the substrate combination and formulation, subject to the plant's measured results. (Data source: product handbook / official product data)

Boundaries (two items)

1. Functional direction boundary: R880 handles interfacial compatibility and graft modification; it is not the same as anti-fogging and anti-dripping (R800 / R800F direction), thermal insulation (R66 direction), dispersion, flame retardancy, etc.; they cannot substitute for one another, and no equivalence comparison is made. 2. Relationship with the masterbatch line: the documentation does not establish any "internal use" wording or mapping between R880 and any masterbatch grade; searches across masterbatch volumes return zero hits—do not account for it according to a masterbatch-additive correspondence. (Data source: product handbook / official product data)

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

R880 is listed in the comprehensive series. In the product list, R66 adjacent to this grade is a thermal insulation agent (UV absorption + infrared reflection + insulation via internal cavities in films); there are also two anti-fog agents R800 and R800F that are often asked about together (surface hydrophilic orientation, anti-fog and anti-drip). The four grades are independent: each has its own name, item, technical data sheet, and detail page; the materials do not describe any grade as a sub-code or replacement of another. The composition, form, and dosage of the four grades must be read item by item—values are not copied across, specifications are not interchanged, and directions are not substituted. (Data source: product handbook / official product data)

Reading note: The comparison only explains each grade's documented positioning and intended use; values for different grades must not be applied interchangeably. 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 documented records; items not listed in the materials are not drafted on their behalf.

The data on this page come from two types of materials and are traceable item by item:

• The facts on this page come from two verifiable sources: the product handbook (technical data sheet, catalog line, company profile statements) and official product data (product item fields, site dictionary and detail page copy, product list, application-domain data).
• Specifications, dosage, storage, and handling clauses are transcribed verbatim from the source text; places where the same value is written differently (the three dosage spellings) are retained by layer and have not been uniformly rewritten; original wording in quotations is transcribed unchanged.
• Parameters on this page are strictly isolated from adjacent grades in the same series (R66 / R800 / R800F); the juxtaposition in Section 6 is only for boundary delineation, and each cited neighboring value is explicitly attributed to its source grade.
• Items not provided in the materials (full specification sets, experimental data, curves, production-line measurements, processing windows, packaging, shelf life, and MSDS-type items) are truthfully marked in the main text; no figures, mechanisms, or effect descriptions unsupported by the materials have been used.

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

• Coexisting name-layer spellings: in company profile-type statements, this functional direction also appears under the spelling 'compatibilizing agent for plastic graft modification,' with the number written as R881 (the wording and number each differ by one character from this product's 'compatibilizer / R880')—this spelling has not been found to correspond to an independent item in the official product data, product list, or detail page, and the materials do not explain the correspondence between the two—transcribe by layer without judging right or wrong, and the main text uniformly follows the official full name; it is recommended to check against the official wording before publication.
• '6 items' of natural fillers: the detail page counts 6 items, and only 'starch / wood flour / bamboo flour…' are given as examples; the remaining items are not named—transcribe the count and do not add names.
• Mechanical improvement statements are as documented: 'significantly improves the mechanical properties and processing stability of composites' and 'improves the impact strength, tensile strength, heat resistance, and other overall properties of modified materials' are both without experimental conditions or measured data; the mechanical meter on the detail page already carries the annotation 'schematic, not measured values'—read as documented values, not as a product guarantee.
• Full sets of physicochemical specifications (pH / density / viscosity / solid content, etc.), packaging, shelf life, and safety data (MSDS-type) are not listed; there is no processing temperature window, no substrate tiering, no compatibility item, and no dedicated experimental data table or curves.
• This grade has no thickness-dosage direction clause to verify; no masterbatch correspondence; it is a single code (no suffix variants).
• Spelling-difference record: '0.2% - 1.0%' (handbook layer) / '0.2-1.0%' (official field layer) / '0.2% – 1.0%' (detail page layer)—same value written differently; transcribe by layer and do not change one to another.