Wholesale Price Raw Eps Beads - STMMA – Xiongye

Short Description:


Product Detail

FAQ

Product Tags

Related Video

Feedback (2)

Sticking for the perception of "Creating goods of high quality and making good friends with people today from all around the world", we constantly set the interest of shoppers to begin with for Bulk Styrofoam Coolers, Wire Panel, Foam Ice Cream Box, Base on the business concept of Quality first, we would like to meet more and more friends in the word and we hope provide the best product and service to you.
Wholesale Price Raw Eps Beads - STMMA – Xiongye Detail:

STMMA copolymer beads are copolymers of styrene and methyl methacrylate with a carbon content of 69.6%. Compared with EPS, the carbon content is greatly reduced, and because STMMA contains oxygen atoms, oxygen atoms can be combined with carbon atoms, thereby further reducing the residual carbon
STMMA raw materials are mainly used in the production of castings such as valves, pipe fittings, auto parts and various mechanical parts.
STMMA series expandable copolymer resin beads have better casting properties than EPS:
Reduce the carbon defects of castings;
Reduce the surface carbon defects of steel castings;
Reduced soot;
Improve the surface finish of castings.
The EPS pattern has large shrinkage and poor dimensional stability. The STMMA pattern has low shrinkage and good dimensional stability.
EPS is mainly composed of chain links containing benzene ring, which not only has high carbon content, but also has good thermal stability of benzene ring. At high temperature (>900°C) and hypoxia, a tar-like viscous liquid is first generated, which is then cracked into carbon and hydrogen. The composition of STMMA is mainly composed of acrylate-based chains, which are zipper-type decomposition at high temperatures, and low The molecular liquid and gas are extracted through the coating and the flask, and the composition contains two oxygen atoms to take away two carbons, which further reduces the source of carbon. This is why the STMMA model material is used, and the castings are not easy to generate carbon defects and steel. The main theoretical basis for the low carbon addition on the surface of the casting and good surface finish.
Main specifications of technical performances of product:
STMMA
Main specifications of technical performances of product:
STMMA

Item

Index

Appearance

Opaque spherical granule

Range of particle size, μm

200 ~ 800

Content of volatile %

≥7.0

Content of moisture %

≤ 0.6

Main applications Suitable for casting of aluminum, copper alloy, grey iron, nodular iron, alloy steel, mild steel and stainless steel.

Name

unit

EPS

STMMA

Molecule

-(C8H8)n-(C8H8O2)m-

-(C8H8O2)-m

Carbon

%

92

60

Crumble

j/g.k

-912

-842

Tg

80-100

100-105

Evaporation(start)

270-300

250-260

Evaporation(end)

460-500

420-430

Storage method of STMMA beads:
STMMA requires low-temperature refrigeration (≤10°C). For customers who do not have this condition, please store in a dry, ventilated, cool place without direct sunlight. When it is not used up after opening, remember to re-tighten the bag and cover the bucket to prevent the loss of pentane. It is best to place the beads in a designated location, and pay attention to fire prevention in the place where the beads are stored.


Product detail pictures:

Wholesale Price Raw Eps Beads - STMMA – Xiongye detail pictures


Related Product Guide:

We provide fantastic energy in top quality and advancement,merchandising,gross sales and marketing and operation for Wholesale Price Raw Eps Beads - STMMA – Xiongye , The product will supply to all over the world, such as: Montpellier, Tunisia, Belize, Our company considers that selling is not only to gain profit but also popularize the culture of our company to the world. So we are working hard to give you the wholehearted service and willing to give you the most competitive price in the market
  • We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!
    5 Stars By Judith from Washington - 2017.10.13 10:47
    The factory workers have a good team spirit, so we received high quality products fast, in addition, the price is also appropriate, this is a very good and reliable Chinese manufacturers.
    5 Stars By Sally from Canada - 2017.11.29 11:09
    Write your message here and send it to us