TEL: +86-138-25237224 Email: sales@acrylickingdom.com

Search

Contact Us

Mobile1: +86-13825237224 Daniel

Mobile 2:+86-13631668736 Janie

Telephone: +86-752-3521706

Telephone: +86-752-3521709

E-mail: sales@acrylickingdom.com

Address: 2 & 3F, Building B, XINLING Industrial Zone,GAOWU, DONGFENG Village, XINXU Town,HUIYANG District, HUIZHOU City, GUANGDONG Province, P.R.China

Postal Code: 516223

News
Home > News > Content

Acrylic Process Characteristics

HUIZHOU MINGYU INDUSTRIAL CO.,LTD | Updated: Jun 16, 2017

1. Poly (methyl methacrylate) containing polar side methyl, with more obvious hygroscopicity, water absorption rate generally in 0.3%-0.4%, before forming must be dry, drying condition is 800 85 under dry 4-5h.

2. The non-Newtonian fluid characteristic of PMMA in the temperature range of the molding process has obvious effect, and the melt viscosity decreases with the increase of shear rate, and the melt viscosity is also sensitive to the temperature change.

3. Methyl methacrylate began to flow at a temperature of about 160 Shan, starting to decompose at temperatures higher than 270 Shan, with a wider processing temperature range.

4. PMMA melt viscosity is higher, the cooling rate is faster, the product is easy to produce internal stress, so the molding process requirements of strict control, after the product molding also need to be processed.

5. Poly (methyl methacrylate) is amorphous polymer, shrinkage and the range of change is small, generally about 0.5%-0.8%, is conducive to forming a higher dimensional precision plastic parts.

6. PMMA cutting performance is very good, its profile can be easily machined into a variety of requirements of the size.


HUIZHOU MINGYU INDUSTRIAL CO.,LTD