Hydroxyethyl Methyl Cellulose

*Good construction performance.

*Good water retention performance and resists base cracking and coating peeling.

*High intensity growth.

*Enough operable time and ensures the wetting performance and recoating performance of the putty on the base surface.

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Product Details

Hydroxyethyl methyl cellulose ether, referred to as HEMC, is a non-ionic cellulose ether obtained from natural polymer material cellulose through a series of chemical reactions. It is an odorless, tasteless, non-toxic white to off-white powder or granule, which can be dissolved in cold or hot water to form a transparent viscous solution, which has the functions of thickening, binding, water retention, dispersion, emulsification and film formation. , suspension, adsorption, colloid protection, etc

Structural formula

HEMC for Putty

(n～2)/2

OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3

Specification of non modified products

Type Item	HPMC PD/PDS	HPMC PK/PKS	HEMC EM/EMS
Non surface treatment	PD100M PD150M PD200M PD300M	/	EM40M EM60M EM70M EM100M EM150M EM200M
Surface treatment	PD100MS PD150MS PD200MS	PK8000S PK100MS PK150MS PK200MS	EM6000S EM8000S EM10MS EM20MS EM30MS EM60MS EM100MS EM150MS EM200MS
Gel temperature ℃	58.0～64.0	70.0～90.0	70.0～90.0
pH	5.0～9.0	5.0～8.0	5.0～9.0
Loss on drying %	≤5.0	≤5.0	≤5.0
Burning residue %	≤5.0	≤5.0	≤5.0
Bulk density g/L	330～400	350～420	350～420
Methoxy %	23.0～25.0	19.0～24.0	19.0～24.0
Hydroxypropyl %	8.0～11.0	4.0～12.0	/
Hydroxyethoxy %	/	/	7.0～10.0