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The main component of plastic used in injection molds

Today is the first day of the Qingming holiday holiday, Dongguan Plastic mold factory friends you today began to rest it? Edit the mold factory where the holiday has been, but the editor I was still in work, so today we introduce the plastic mold used in the main components of the mold.

(A) resin


     Resin is the main indispensable component of plastic, belonging to the polymer compounds.


    Role: the plastic has plasticity and mobility, and determine the type of plastic and the main performance.


(B) filler (also called filler)


Role: 1, reduce the resin content, reduce the cost of plastic, from the role of incremental;


2, to improve the performance of plastic, expand the scope of application of plastic, from the role of modification.


Type: according to its shape points, can be divided into: powder, fibrous, layered (sheet).


Common fillers are: CaCO3, clay, carbon, metal powder.


(3) plasticizer


1, the role:


Increase the plasticity of plastics, mobility and flexibility, improve the molding performance, reduce rigidity and brittleness.


    2, the requirements of plasticizer


       Can not be easily miscible with the resin and not chemical reaction; easy to precipitate from the product and volatile; not reduce the main performance of products; non-toxic, harmless, colorless, nonflammable, low cost.


(D) coloring agent (pigment)


1, the role:


Mainly from the beautiful decorative effect, but also improve the plastic light stability, thermal stability and weather resistance.


(5) Lubricants


1, the role:


To prevent the plastic mold in the molding process, while also improving the flow of plastic and improve the degree of plastic surface gloss.


2, commonly used lubricants are:


  Paraffin, stearic acid, metal soaps, lipids and alcohols.


(6) Stabilizer


1, the role:


Inhibit and prevent the degradation of the resin during processing or use.


2, according to the role of the classification of stabilizers can be divided into the following three:


(1) heat stabilizer


(2) light stabilizer


(3) antioxidants


(7) other additives


    Antistatic agents, flame retardants, reinforcing agents, repellent, foaming agents, crosslinking agents, curing agents and the like.


 


Note: The above information from the Jiezheng mold on the Internet, welcome reproduced, indicate the source!

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