Surapich Loykulnant

Rubbers Lab, Polymer Research UnitNational Metal and Materials Technology Center

7 researchers and11 assistant researchers

A unit that can provide, research and development, technical and knowledge and information support as well as training of human resource to the Thai rubber industry and solve the problem of the lack of technologies for the Thai rubber product.

www.rubbercenter.org

Research Themes

1. Revolutionizing of

Raw Rubber Production Processes

1. Revolutionizing of

Raw Rubber Production Processes

- Constant-property rubber- Less-pollution process - Constant-property rubber- Less-pollution process

2. Rubber Compounding for Specific

Property Improvement

2. Rubber Compounding for Specific

Property Improvement

- Improve product quality- Develop new products- Improve product quality- Develop new products

3. Thermoplastic Natural Rubber

(TPNR)

3. Thermoplastic Natural Rubber

(TPNR)

The practice to add value to NR and to recycle NR.The practice to add value to NR and to recycle NR.

4. Dynamic Properties Technology and Finite

Element Analysis Technology for Engineering

Rubber Products

4. Dynamic Properties Technology and Finite

Element Analysis Technology for Engineering

Rubber Products

These techniques can help to improve and develop the quality of engineering rubber products.These techniques can help to improve and develop the quality of engineering rubber products.

Raw Rubber Projects

ORL-RAT LD50: Ammonia 12-44% = 350 mg/kg, TAPS 95% = 1750 mg/kg

TAPS

2003 ~

HA/LATZ TAPS Benefits

Obnoxious odor Odorless latex Personal healthcare ����

Carcinogen No carcinogen Product assurance ����

Highly toxic to cell Non-toxic to cell Manufactured risk ����

Base Neutral Environmentally friendly ����

High corrosion Low corrosion Maintenance costs ����

AmmoniaAmmonia VS TAPSVS TAPS

Environmentally friendly processes to recover rubber from skim latex, waste water and sludge.

Skim Latex

Washing Water

Sludge

RubberScrap

H2SO4

GRASS

Samples PO P30 PRI Mooney viscosity

Our Skim Rubber 27.0 16.5 61.2 49

Traditional Skim Rubber 13.5 3.3 24.7 28

Source: R&D Lab – Tavorn Rubber Industry (1982) Co., Ltd.

Innovative Continuous Drying Process of Innovative Continuous Drying Process of Natural Rubber by TwinNatural Rubber by Twin--screw Extrusion screw Extrusion TechniqueTechnique

� Continuous process with a much shorter drying time

� Cost reduction based on less energy used

� High quality dried NR products in accordance with STR

� Process and products offer competitive advantage for Thai NR industries