合成树脂及塑料
閤成樹脂及塑料
합성수지급소료
CHINA SYNTHETIC RESIN AND PLASTICS
2015年
1期
32-35
,共4页
徐菁%丁继文%丁伟%俞鸣明%朱晋生%贾良山%孙莺%胡和丰
徐菁%丁繼文%丁偉%俞鳴明%硃晉生%賈良山%孫鶯%鬍和豐
서정%정계문%정위%유명명%주진생%가량산%손앵%호화봉
酚醛树脂%可发泡%游离甲醛%复合甲醛捕捉剂
酚醛樹脂%可髮泡%遊離甲醛%複閤甲醛捕捉劑
분철수지%가발포%유리갑철%복합갑철포착제
phenolic resin%foaming%free formaldehyde%composite formaldehyde capture agent
以苯酚和多聚甲醛为原料合成可发性液态酚醛树脂，考察了催化剂、甲醛与苯酚摩尔比、反应温度、反应时间和甲醛捕捉剂对酚醛树脂中游离甲醛含量及酚醛树脂黏度的影响。结果表明：以复合催化剂作为催化剂，用量为苯酚质量的5%，采用逐步升温工艺，在60～70℃条件下反应3.0h，80℃条件下反应2.5h，添加盐酸羟胺与尿素组成的复合甲醛捕捉剂于80℃继续反应0.5h，得到的可发性液态酚醛树脂的游离甲醛质量分数为0.12%，黏度为3.97Pa·s。
以苯酚和多聚甲醛為原料閤成可髮性液態酚醛樹脂，攷察瞭催化劑、甲醛與苯酚摩爾比、反應溫度、反應時間和甲醛捕捉劑對酚醛樹脂中遊離甲醛含量及酚醛樹脂黏度的影響。結果錶明：以複閤催化劑作為催化劑，用量為苯酚質量的5%，採用逐步升溫工藝，在60～70℃條件下反應3.0h，80℃條件下反應2.5h，添加鹽痠羥胺與尿素組成的複閤甲醛捕捉劑于80℃繼續反應0.5h，得到的可髮性液態酚醛樹脂的遊離甲醛質量分數為0.12%，黏度為3.97Pa·s。
이분분화다취갑철위원료합성가발성액태분철수지，고찰료최화제、갑철여분분마이비、반응온도、반응시간화갑철포착제대분철수지중유리갑철함량급분철수지점도적영향。결과표명：이복합최화제작위최화제，용량위분분질량적5%，채용축보승온공예，재60～70℃조건하반응3.0h，80℃조건하반응2.5h，첨가염산간알여뇨소조성적복합갑철포착제우80℃계속반응0.5h，득도적가발성액태분철수지적유리갑철질량분수위0.12%，점도위3.97Pa·s。
A?foaming?liquid?phenolic?resin?was?synthesized?from?phenol?and?paraformaldehyde.?The?effects?of?the?catalyst,the?molar?ratio?of?formaldehyde?to?phenol,reaction?temperature,reaction?time?and?the?formaldehyde?capture?agent?on?free?formaldehyde?content?and?the?viscosity?of?the?phenolic?resin?were?investigated.?The?results?show?that?the?foaming?liquid?phenolic?resin?obtained?has?free?formaldehyde?mass?content?of?0.12%?and?viscosity?of?3.97?Pa·s?when?the?composite?catalyst?is?used?as?the?catalyst?and?its?dosage?is?5%?of?phenol?mass?with?gradual?heating?process,that?is,the?reaction?is?performed?at?60-70?℃?for?3.0?hours,80?℃?for?2.5?hours, then?80?℃?for?half?an?hour?after?adding?hydroxylamine?hydrochloride-urea?composite?formaldehyde?capture?agent.
