Chlorinated Polypropylene Resin (CPP) and Chlorinated Polyolefin Resin (CPO) are similar in name and application, but they have a container-contained relationship. Simply put, Chlorinated Polypropylene is a type of Chlorinated Polyolefin.
Chlorinated Polyolefin is a broad category referring to all polyolefin resins that have undergone chlorination modification.
Chlorinated Polypropylene is a major subclass within the Chlorinated Polyolefin category, specifically referring to products made from polypropylene (PP) raw material through chlorination.
You can understand it like this:
Polyolefin (e.g., polyethylene PE, polypropylene PP) → Chlorination → Chlorinated Polyolefin (e.g., chlorinated polyethylene CPE, chlorinated polypropylene CPP)
Therefore, Chlorinated Polypropylene (CPP) is a type of Chlorinated Polyolefin (CPO).
To help you understand more clearly, here is a comparison table contrasting the broad category of "Chlorinated Polyolefin" with the specific product "Chlorinated Polypropylene".
|
Property |
Chlorinated Polypropylene |
Chlorinated Polyolefin |
|
Definition & Scope |
Specifically refers to polymers made from polypropylene (PP) raw material through chlorination reaction. |
Generally refers to a large category of polymers made from various polyolefins (e.g., polyethylene PE, polypropylene PP, EVA, etc.) through chlorination modification. |
|
Main Types |
It is a specific product type. |
It is a product category, mainly including: |
|
Chlorine Content |
Typically controlled between 20% - 40% depending on application, with significant performance differences between products with different chlorine content. |
Wide range of chlorine content, from over 20% to over 70%, depending on the specific product and application. For example, CPE as a plastic modifier has about 35% chlorine content, while as an elastomer it can reach 40-45%. |
|
Key Properties |
1. Excellent adhesion, especially to polyolefin plastics like PP and PE that are difficult to adhere to. |
Properties vary by specific type, very diverse: |
|
Main Applications |
1. Coatings and Inks: Adhesion promoter and base resin for plastic coatings (e.g., PP automotive bumpers, appliance housings), which is its main use. |
Broader application areas, depending on the specific type: |
|
Raw Material |
Polypropylene (PP) |
Various Polyolefins, such as: |
Chlorinated Polyolefin is like the broad category of "Fruit", while Chlorinated Polypropylene is like the specific type "Apple". Just as fruit includes apples, bananas, oranges, etc., similarly, chlorinated polyolefin includes chlorinated polyethylene, chlorinated polypropylene, etc.
When people say "Chlorinated Polyolefin", they usually might be referring to Chlorinated Polyethylene (CPE), as CPE is the most produced and widely used type of chlorinated polyolefin, especially in plastic modification and cable fields. When specifically saying "Chlorinated Polypropylene", it specifically refers to the type used for adhesion promotion.
If you need to solve the problem of coating, printing, or adhesion on polypropylene (PP) or polyethylene (PE) plastic surfaces, then you need Chlorinated Polypropylene (CPP) or its derivatives.
If you need to improve the toughness (impact resistance) of PVC materials or manufacture flame-retardant cables, waterproof materials, then you need Chlorinated Polyethylene (CPE).
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