The invention relates to a polyvinyl chloride foaming life buoy. The life buoy is prepared from the following raw materials in percentage by mass: 10-25% of a nitrile butadiene rubber, 0.1-0.3% of a vulcanizing agent, 0.2-0.3% of a metallic soap lubricant, 6-12% of a plasticizer, 10-20% of a foaming agent, 0.5-1% of a stearate stabilizer and the balance of a polyvinyl chloride resin. The preparation method comprises the following steps: (1) weighing the materials, adding the weighed materials into a mixer, stirring for 3-4 minutes at a temperature of 50-60 DEG C, transferring into a mixing mill, and mixing for 4-6 minutes at the temperature of 110-120 DEG C; (2) putting the mixed material into a normal-temperature double-roller open mill, and rolling into sheets; and (3) cutting a certainamount of the material sheets as required, putting the cut material sheets into a mold, carrying out hot pressing in a press vulcanizer at 170-180 DEG C under a pressure of 8-10 MPa for 8-10 min, opening the mold, cutting edges, and carrying out frosting treatment.

    本发明涉及一种聚氯乙烯发泡救生圈,所述救生圈由以下质量百分比的原料制成:丁腈橡胶为10~25%,硫化剂为0.1~0.3%,金属皂类润滑剂为0.2~0.3%,增塑剂为6~12%,发泡剂为10~20%,硬脂酸盐稳定剂为0.5~1%,余量为聚氯乙烯树脂。制备方法为:(1)将上述各物料称重后加入混料机中在50~60℃搅拌3~4min,移到混炼机中以110~120℃的温度混炼4~6min;(2)将混炼好的料投入到常温双辊开炼机中辊压成片;(3)按需裁取一定量的料片放入模具,并在平板硫化机中热压,温度170~180℃,压力8~10MPa,热压8~10min,开模,裁边,磨砂处理。


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    Title :

    Polyvinyl chloride foamed life buoy and preparation method thereof


    Additional title:

    一种聚氯乙烯发泡救生圈及其制备方法


    Contributors:
    BAO GUOPING (author) / HUANG XI'AN (author)

    Publication date :

    2020-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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