헥사메틸올멜라민

헥사메틸올멜라민 C화학적 특성, 용도, 생산

용도

Hexamethylolmelamine can further condense in the presence of an acid catalyst; ether linkages can also form (see “Urea Formaldehyde”). A wide variety of resins can be obtained by careful selection of pH, reaction temperature, reactant ratio, amino monomer, and extent of condensation. Liquid coating resins are prepared by reacting methanol or butanol with the initial methylolated products. These can be used to produce hard, solvent-resistant coatings by heating with a variety of hydroxy, carboxyl, and amide functional polymers to produce a cross-linked film.

제조 방법

To a resin flask equipped with a mechanical stirrer and condenser are added 37.8 gm (0.3 mole) of melamine and 195 gm of 37% (2.4 moles) formaldehyde solution. The pH of the mixture is adjusted with caustic to pH 8.3. The reaction mixture is heated on a water bath with stirring at 50°C for about 70-80 min, at which time all the melamine has gone into solution. On cooling the product separates as a thick white precipitate and is filtered to afford the monohydrate (after drying at 50°C). Yield: 62.5-69.0 gm (68-75%), m.p. 147°-153°C.

Preparation of Hexamethylolmelamine
NOTE: Approximately one-third of the product melts at 120°-140°C.
This reaction can also be carried out at room temperature over a two week period to give a quantitative yield, m.p. 150°-154°C. Infrared absorption data (KBr) are (microns): 2.93 (s), 3.37 (w), 6.40 (s), 6.65 (m), 6.90 (w), 7.20 (m), 7.50 (w), 7.82 (s), 8.35 (w), 10.10 (s), 10.90 (w), 11.45 (w), 12.30 (w) (where s = strong, m = medium and w = weak).

헥사메틸올멜라민 준비 용품 및 원자재

원자재

준비 용품

헥사메틸올멜라민 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21668	55
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
LEAP CHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	24738	58
Hebei Guanlang Biotechnology Co., Ltd.	+8619930503259	cherry@crovellbio.com	China	18427	58
Hebei Fengmu Trading Co., Ltd.	+8613393234347	Lyla@fengmuchem.com	China	2982	58
Beijing HwrkChemical Technology Co., Ltd	010-89508211 18501085097	sales.bj@hwrkchemical.com	China	8415	55
Hubei Jusheng Technology Co.,Ltd	027-59599241 18871490274	1400878000@qq.com	China	9957	58
Shanghai Orgchem Co.,Ltd.	+86-21-5877 1921	info@chemofchina.com	China	9661	55
NORANA GROUP	027-027-59209883 17386169806	service@nornachem.com	China	4591	58
Hubei yongkuo Technology Co., Ltd	027-59223108 15972152991	1248580099@qq.com	China	9988	58

헥사메틸올멜라민 관련 검색: