Within the polyurethane industry, polyether polyols and their premixed formulations are commonly referred to as the "white component". Dongda “White Tech” represents innovative raw material technology centered on high performance, green low-carbon development, cleanliness and safety — the technological code that makes life safer, purer and more durable.
As technology advances, polyether polyols have been deeply integrated into all areas of production and daily life. Charming Sinochem Dongda launches the column Dongda “White Tech”. We invite you to explore diversified application scenarios of polyether polyols, interpret core product properties, discover technological power around us, and experience how innovation empowers a better life.
Memory pillows have gained growing popularity among consumers in recent years. Made primarily of gas-generating slow-rebound memory foam, the material features adaptive fitting shaping and zero-pressure support. It distributes body pressure evenly and is widely adopted in close-contact products such as bedding and neck supports, serving as a mainstream comfort material for household and travel scenarios.
Nevertheless, non-washability and difficulties in deep cleaning have long been common drawbacks of memory foam products. Conventional memory foam features a closed-cell structure with strong water absorption. It tends to swell and deform upon water exposure. Washing and kneading may cause surface peeling, powder shedding and permanent collapse of internal foam cells. After drying, resilience cannot be restored, resulting in severe loss of soft supportive performance. Since thorough washing is impossible, sweat residues, skin flakes and dust mites easily accumulate inside foam cores. Surface wiping alone cannot achieve complete removal, creating hygiene risks and drastically shortening product service life.
Targeting this key pain point, Sinochem Dongda has independently developed special polyethers dedicated to washable memory foam, breaking industry bottlenecks through molecular design at the raw material level.
(1) Modified molecular structure for stable wash resistance Precise molecular chain design and optimized crosslinking structure form a stable 3D polyurethane foam framework. The foam shows no swelling, hardening or collapse after washing. Water drains rapidly without residue and air-dries efficiently, fundamentally tackling the industry challenge of poor wash resistance of memory foam.
(2) Precisely controlled open-cell structure with excellent moisture permeability Proprietary foaming formulations enable uniform cell nucleation and controllable open-cell ratio. Finished foam features interconnected pores for smooth air circulation. It quickly dissipates heat and moisture during daily use to maintain a dry surface, preventing stuffiness for close-contact applications and meeting diverse scenario requirements.
(3) Low VOC and low odor with reliable environmental performance Inheriting Sinochem Dongda’s low-odor, low-volatility product advantages, the formulation strictly restricts residues of harmful substances including aldehydes and benzene series. Foamed finished products have no pungent odor and comply with environmental and safety standards for direct skin contact in household applications.
(4) High formulation compatibility with sustained slow-rebound performance While achieving wash resistance, the material fully retains the temperature-sensitive slow-rebound characteristics of polyethers without compromising support and pressure relief. Stable functionality and molecular weight distribution deliver excellent compatibility with isocyanates and additives, offering great flexibility for foaming formulation adjustment.
(5) Broad processing adaptability and consistent batch quality Suitable for multiple downstream manufacturing processes including continuous slabstock foaming and molded foaming, with wide processing windows and high production tolerance. Minimal fluctuation between batches stabilizes finished product yield and facilitates large-scale mass production.
(1) Household Bedding: skin-contact products including washable memory pillows, mattresses, seat cushions, lumbar supports and U-shaped pillows
(2) Maternity & Infant Products: frequently cleaned articles such as children’s pillows and baby mattresses
(3) Medical & Healthcare: scenarios requiring high hygiene standards, including medical care pads and rehabilitation aids
(4) Automotive Interiors: interior components such as headrests and lumbar supports
Sinochem Dongda “White Tech” empowers every moment of life. Raw material innovation drives application upgrading, and special polyethers continuously expand industrial boundaries. Centered on technological innovation, Sinochem Dongda adheres to premium quality standards, builds a diversified application portfolio, and strides forward with professionalism and craftsmanship.
Which “White Tech” innovation would you like to learn about next? Stay tuned to Charming Sinochem Dongda, as we continue to decipher polyether technology for you.
Polyether samples and foam samples can be provided for your testing and trials.
If you are interested in the above-mentioned products or services, please contact us: Sungang06@sinochem.com
