1.注塑過程中使用（yòng）更多純樹脂
1. Use more pure resin during injection molding
在許多塑料的注塑加工中，尤其是在諸如聚氯乙烯，苯乙（yǐ）烯，聚乙酸乙酯和丙烯酸酯之類（lèi）的塑料中，痕量的殘留單體會（huì）產生難（nán）聞的氣味。使用單體殘留非常困難的樹脂就足夠了,消除這些氣味。如果使用本來就無味的樹脂，則效果會很差。
In the injection molding of many plastics, especially in plastics such as polyvinyl chloride, styrene, polyvinyl acetate and acrylate, trace residual monomers will produce unpleasant smell. It is sufficient to use a resin with very difficult monomer residue to eliminate these odors. If you use an already tasteless resin, the effect will be very poor.
2.注塑加工改變添加劑（jì）
2. Change additives in injection molding
用（yòng）於生產聚氨酯泡沫的叔胺催化劑通常會產（chǎn）生非常微弱的氣味（wèi），此外（wài），它還會在（zài）汽車的內窗玻璃上形成霧氣。解決該問（wèn）題的方法是找到這些胺（àn）的替代物，其中一種措施是使用（yòng）多羥基化合物，剩餘的羥基化合物不僅是聚氨酯（zhǐ）分子鏈的組成部分，因此它們還具有（yǒu）催化活性。一些多羥基化合物也可以代替叔胺催化劑的一半，因（yīn）此（cǐ）生成的（de）產品散發（fā）出的臭味比那還少。
The tertiary amine catalyst used to produce polyurethane foam usually produces very faint odors. In addition, it also forms fog on the inner windows of cars. The way to solve this problem is to find substitutes for these amines. One measure is to use polyhydroxy compounds. The remaining hydroxyl compounds are not only components of polyurethane molecular chain, so they also have catalytic activity. Some polyhydroxy compounds can also replace half of the tertiary amine catalyst, so the resulting products emit less odor than that.
PVC擠出或壓延中使用的苯酚穩定劑通（tōng）常被高氣味的鋅穩（wěn）定劑代替。由於其高氣味和低霧化（huà）特性，熱穩定劑辛酸錫在汽車PVC中也很常見。在產品中，植物提取油（如芥酸和油酸）比胺潤滑劑（用於聚烯烴和苯（běn）乙（yǐ）烯食品（pǐn）包裝中）的（de）氣味要高得多材料）由動物提取油製成。
Phenol stabilizer used in PVC extrusion or calendering is usually replaced by high odor zinc stabilizer. Due to its high odor and low atomization characteristics, heat stabilizer tin octanoate is also very common in automotive PVC. In products, vegetable extracted oils (such as erucic acid and oleic acid) have a much higher odor than amine lubricants (used in polyolefin and styrene food packaging). Materials) are made of animal extracted oils.
3.注塑加工吸附（fù）劑
3. Injection molding adsorbent
如果聚合物（wù）中填充有（yǒu）少量沸（fèi）石（一種鋁（lǚ）矽酸鹽吸附劑），它將起到消除材料異味的作用,沸石具（jù）有大量（liàng）的圓盤，可（kě）以（yǐ）捕獲帶（dài）有氣味的小氣體分子。該分子吸附劑已成功應用於聚烯烴擠出管，注塑加工和擠出吹塑容器，隔離包裝材料（liào），擠出包裝材料和密封件。分子吸附粉（fěn）末也可以作為吸濕劑添加到塑料中（zhōng）,除去除水蒸氣外（wài），該水蒸氣（qì）還將有助於塑料製品的氣味。
If the polymer is filled with a small amount of zeolite (an aluminosilicate adsorbent), it will eliminate the peculiar smell of the material. Zeolite has a large number of discs, which can capture small gas molecules with odor. The molecular adsorbent has been successfully applied to polyolefin extrusion tubes, injection molding and extrusion blow molding containers, isolation packaging materials, extrusion packaging materials and seals. Molecular adsorption powder can also be added to plastics as a hygroscopic agent. In addition to water vapor, the water vapor will also contribute to the odor of plastic products.
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