Shanghai Daoqin Plastics Co., Ltd.

尽 tube/pipe non 始终必需, in use front for nylon parts water separation adjustment is 常规惯例. table/sheet 1 in 示, water separation can increase nylon parts tough property, property and dimensions. usually, nylon in degradation lower tool has can anti 止变脆 most low water separation content. water large is nylon in 50% versus for wet degree ring lower to balanced water 平. for/regarding add strong/high type nylon 66 说, water separation content is 2% to 3%.

adjustment nylon water separation methods

usually use below/following 列出 三 types methods 之一进行 nylon resin water separation adjustment. has 一点必 must is, use what adjustment process, water absorption will water temperature and parts thick degree 而变化. usually, water temperature increase 2°C, water absorption 就差不 more add 倍, and water absorption and parts thick degree formed ratio.

1, most 佳— in room temperature lower 暴露于 high wet ring in.

2, good — will parts temperature degree is 50-55°C water in.

3, 不建议— will parts water in 煮沸.

列 每 types methods can used for adjustment nylon resin; 不, 不建议煮沸模 made parts, is to type ring in 时, increase hydrolysis and thermal degradation can can.

露于 high wet ring in

in high wet ring in, using/adopting below/following types methods adjustment parts in water separation:

1, in anti container in, will 测定数 amount water add made parts, this type of adjustment nylon water separation simple, commonly used methods. has very important is, must will this parts less 储藏30天（参见图1）. this will has time make water separation to nylon in, make to wet degree relatively low gas in 时, 也不会 very fast dry.

2, in use front, will made parts in wet degree 达80% to 100% 区域 or inner. attention/notes 图1 in to 适当含 water amount time 曲线图. in from high wet ring in 取出之 front, will formed water separation adjustment parts packaging 于密封 container in, in use parts front water separation.

can through multiple methods control wet degree, usually can use device 进行. in certain 域, in year in 特定季节, can use wet degree adjustment methods control wet degree.

浸入 hot water in

usually, will parts 浸入50-55°C water in 达足够 time, absorption water separation, 如图2 示. rear, more water separation, will parts packaging to anti container in. can will parts in wet container in, absorption more more water in more high water separation content lower to balanced.

in water in 煮沸

不建议 use in water in 煮沸模 made parts methods for nylon water adjustment. various fast speed water methods, 例如煮沸, can obtain surface water 效果. this type of surface water separation fast, fast, very easy dispersion to gas in. in addition, 煮沸零部 parts usually 会导致 loss important additives, from 而导致零部 parts 早失效.

water separation adjustment 曲线图

图1 and 图2 in provide 曲线图 large 致显示 示 thick degree polyamide (PA) parts water 情况. certain additives or formed will for its generate light micro effect/influence. this table/sheet as 指导之 use. must for 每 模 made parts 进行检查, is thick and surface —体积 ratio in more made parts in has different.