Wholesale Price Raw Eps Beads - STMMA – Xiongye

Short Description:

Product Detail

FAQ

Product Tags

Feedback (2)

We can normally fulfill our respected consumers with our great excellent, great value and good provider due to we're much more specialist and extra hard-working and do it in cost-effective way for Styrfoam Raw Material, Eps Expanded Polystyrene, Eps Shape Molding Machine, We believe in quality over quantity. Before export of the hair there is strict quality control check during treatment as per international quality standards.

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:

Related Product Guide:

With our loaded encounter and considerate services, we have now been recognized as a trustworthy supplier for lots of worldwide consumers for Wholesale Price Raw Eps Beads - STMMA – Xiongye , The product will supply to all over the world, such as: Canada, Swaziland, Tunisia, We are very responsible for all details on our customers order no matter on warranty quality, satisfied prices, quick delivery, on time communication, satisfied packing, easy payment terms, best shipment terms, after sales service etc. We provide one-stop service and best reliability to our every customers. We work hard with our customers, colleagues, workers to make a better future.

Bead Eps Raw Material