F818

Name and positioning. The data page is titled "Microfoaming agent F818"; the application field section records "used for processing plastic films, trash bags, shopping bags, vest bags, packaging bags, etc." Main use: "mainly used for microcellular foaming invisible to the naked eye in plastics, microfoamed filler masterbatch, etc." (Data source: product handbook)

Overview (verbatim excerpt): "Microfoaming agent F818 is a microfoaming agent developed by our company according to market needs to change conventional plastic ordinary filler masterbatch. For example, the microfoamed filler masterbatch produced by adding the microfoaming agent on the basis of ordinary filler masterbatch production compensates for the effect of filler masterbatch on plastic density (specific gravity) and more effectively reduces production costs. Compared with ordinary filler masterbatch, the thermal insulation performance of microfoamed filler masterbatch used in agricultural film is 50% better. Another example is for packaging films: adding too much ordinary calcium carbonate filler masterbatch affects the hand feel and makes it lose rigidity; adding too much talc filler masterbatch affects heat-sealing performance. Microfoamed filler masterbatch almost compensates for this series of defect problems. For profiles, the heat deformation rate is 60% better than that of ordinary filler masterbatch; according to product specific gravity requirements, it can be adjusted to the same specific gravity as the plastic or even a specific gravity 10% lower than that of the original plastic." (Data source: product handbook)

Application and performance section (verbatim excerpt): "Used for processing plastic films, trash bags, shopping bags, vest bags, packaging bags, etc. It has very good dispersibility; blown film has no white spots or black spots; fineness is high; the product has good gloss and toughness. Mainly suitable for filling modification of woven bags, strapping, hollow articles, pipes, sheets, and injection-molded products; it can improve the performance of plastic products and greatly reduce product cost." (Data source: product handbook)

Key technical indicators: appearance and odor "white viscous flowable ether-smelling liquid"; density 1.28-1.30; PH value 8-8.3; gas evolution 45-48 ml·g⁻¹; decomposition temperature 160℃; released gas "carbon dioxide". (Data source: product handbook)

• Gas evolution characteristics: decomposition temperature 160℃, released gas is carbon dioxide; gas evolution 45-48 ml·g⁻¹.
• Performance statement (verbatim): It has very good dispersibility; blown film has no white spots or black spots; fineness is high; the product has good gloss and toughness.
• Toxicity clause (verbatim excerpt): "Non-toxic and harmless, complies with food-contact grade standards." — verbatim; for relevant compliance, the documents supplied with the goods shall prevail.
• This grade is a historically listed grade (Discontinued); the documentation is retained; this page is compiled as-is from historical data.

Gas evolution pathway. The documentation records that this product releases carbon dioxide at a decomposition temperature of 160℃, with a gas evolution of 45-48 ml·g⁻¹—the gas forms microcells invisible to the naked eye within the system. (Data source: product handbook)

Composite system. This product is added on the basis of conventional plastic ordinary filler masterbatch to prepare "microfoamed filler masterbatch"; the microcellular structure compensates for the effect of filler masterbatch on plastic density (specific gravity) and reduces production costs. (Data source: product handbook)

Performance-related statement (verbatim): when used in films, "it has very good dispersibility; blown film has no white spots or black spots; fineness is high; the product has good gloss and toughness"; it covers filling modification applications such as bags, woven bags, strapping, hollow articles, pipes, sheets, and injection-molded products. (Data source: product handbook)

1. Mixing in — microfoamed filler masterbatch systemAdd the microfoaming agent on the basis of ordinary filler masterbatch to prepare microfoamed filler masterbatch.
2. Gas evolution — carbon dioxide microcell formationAfter the processing temperature reaches the decomposition temperature of 160℃, carbon dioxide is released, forming microcells invisible to the naked eye.
3. Specific gravity setting — balancing cost reduction and performanceAdjust the microcell ratio according to specific gravity requirements; the documentation records improved thermal insulation for agricultural film, and specific gravity can be adjusted to be 10% lower than that of the original plastic.

The table below summarizes the main components and physicochemical properties of F818 recorded in the documentation (original wording and units from the documentation are retained).

The entry for this grade does not list prohibited items or special tests; toxicity clauses are reproduced verbatim (see Section 7); items not recorded in the documentation do not appear in this table. (Data source: product handbook / official product data)

The documentation gives one range for the addition of this product:

The documentation gives only one range and does not specify the denominator; it is presented verbatim, and the denominator is not inferred. The value to use within this range should be determined by small-scale trials according to the masterbatch formulation and target specific gravity.

This entry is the only dosage record for this grade in the documentation; there is no second line item and no scenario-specific tiering; this page does not infer a denominator and does not perform cross-grade conversion. (Data source: product handbook)

The documentation lists the following application areas:

Plastic films

Agricultural films, packaging films, and other areas; blown films have no white spots or black spots, with good gloss and toughness (as stated in the documentation).

Bag products

Garbage bags, shopping bags, vest bags, packaging bags.

Filling modification

Filling modification of woven bags, strapping, hollow articles, pipes, sheets, and injection-molded products; can improve the performance of plastic products and reduce product cost (as stated in the documentation).

F818 and ACM750 both belong to the microfoaming field and are commonly used as a pair; the two grades differ in released gas and technical specifications, so select according to the target. The comparison is as follows:

Reading note: both grades are in the microfoaming field, but the released gas (carbon dioxide / nitrogen), gas evolution, and dosage ranges differ; values cannot be applied interchangeably. (Data source: product handbook)

The following points are taken item by item from documented records; items not listed in the documentation are not drafted on our behalf.

The data on this page come from product documentation and are traceable item by item:

• Product handbook: F818 entry (overview / technical specifications / toxicity / main uses / application fields / dosage / packaging); comparison section in the same handbook (ACM750 entry).
• Cross-verification of documentation: for the same grade entry, excerpts are consistent across three documents—the handbook, the comprehensive series volume, and the content-edited version (single source family; three volumes cross-verify).

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

• Dosage denominator: not stated in the documentation ⇒ this page records the range verbatim and does not draft a denominator.
• Food-contact grade statement: taken from the original documentation (verbatim); for relevant compliance, refer to the documents accompanying the shipment.
• Storage conditions, shelf life, prohibited items, and safe handling data (MSDS level): not recorded in the existing documentation.

F818 is listed as a discontinued grade; the documentation is retained. This page is compiled from historical source material and is not a recommendation of a currently supplied product; please base your selection on current production grades and the latest documentation.