（1）黏溫凝固

   對dui於yu含han蠟la少shao的de油you品pin或huo不bu含han蠟la的de油you品pin，當dang其qi溫wen度du降jiang低di時shi
，黏nian度du迅xun速su增zeng大da，當dang黏nian度du增zeng大da到dao一yi定ding程cheng度du時shi
，油you品pin就jiu會hui變bian成cheng無wu定ding形xing的de黏nian稠chou玻bo璃li狀zhuang物wu質zhi而er失shi去qu流liu動dong性xing，這zhe種zhong現xian象xiang稱cheng為wei黏nian溫wen凝ning固gu。油you品pin凝ning固gu現xian象xiang主zhu要yao取qu決jue於yu其qi化hua學xue組zu成cheng，影ying響xiang黏nian溫wen凝ning固gu的de是shi油you品pin中zhong的de膠jiao狀zhuang物wu質zhi以yi及ji多duo環huan短duan側ce鏈lian的de環huan狀zhuang烴ting。

   （2）結構凝固

   duiyuhanlajiaoduodeyoupin，suizhewendudejiangdi，youpinzhonggaorongdiantingleiderongjiedujiangdi
，dangdadaobaohezhuangtaishi，jiuhuiyijiejingxichu。zuichuxichudeshirouyanguanchabudaoxiweidekelijiejing，shiyuanlaitoumingdeyoupinbianhunzhuo。jixulengque，ladejiejingjiuhuizhujianchangda
，jinyibujiangwen，ladejiejingdaliangshengcheng，xingchengdewangzhuangdejiejinggujia，jiuhuijiangyetaideyoubaozaiqizhong
，shizhenggeyoupinshiquliudongxing，zhezhongxianxiangchengweijiegouninggu（或構造凝固）。影響結構凝固的是油品中高熔點的正構烷烴
、異構烷烴及帶長烷基側鏈的環狀烴。

   wulunshinianwenningguhaishijiegouninggu

，doushizhiyoupinganggangshiquliudongxingdezhuangtai，shijicishiyoupinbingweiningguchengzhenzhengdeguti，ershiyizhongnianchoudegaozhuangwuzhuangtai
，jinjinshizaiyidingtiaojianxiashiquleliudongxingeryi。