一次性玉米淀粉餐具的成型很简单

A starch foaming disposable tableware is prepared by mixing 86-93 parts by weight of modified corn starch, 0.8-1.2 parts by weight of mold release agent zinc stearate, 0.2-0.4 parts by weight of accelerator potassium sorbate, 1.5-2 parts by weight of thickener sodium polyacrylate, 45-53 parts by weight of stabilizer and several parts by weight of water, and then hot pressing;

稳定剂，是将木浆纤维和改性谷壳按1∶1.5～2的重量比混和制得。

The stabilizer is prepared by mixing wood pulp fiber and modified rice husk in the weight ratio of 1 ∶ 1.5-2.

优选地，它是由89重量份的改性玉米淀粉1重量份的脱模剂硬脂酸锌、0.3重量份的促进剂山梨酸钾、1.8重量份的增稠剂聚丙烯酸钠、50重量份的稳定剂、若干重量份的水混合搅拌得到混合料后，经热压成型得到。

Preferably, it is prepared by mixing 89 parts of modified corn starch, 1 part of mold release agent zinc stearate, 0.3 part of accelerator potassium sorbate, 1.8 part of thickener sodium polyacrylate, 50 parts of stabilizer and a number of parts of water to obtain the mixture, and then hot pressing.

进一步，所述的改性玉米淀粉，是将玉米淀粉、茶多酚和水按1∶0.22～0.28∶1.5～1.8的质量比混合后，在35KHz下超声处理35～40min，抽滤，将滤液浓缩滤液体积的1/2，得改性液备用，将滤渣烘干含水量为6～7％，粉碎即得改性玉米淀粉，其中，水温为30℃。

Furthermore, the modified corn starch is prepared by mixing corn starch, tea polyphenols and water in the mass ratio of 1:0.22-0.28:1.5-1.8, ultrasonic treatment at 35kHz for 35-40min, pumping and filtering, concentrating the filtrate to 1 / 2 of the filtrate volume to obtain the modified solution for standby, drying the filter residue until the water content is 6-7%, crushing to obtain the modified corn starch, in which the water temperature is 30 ℃.

进一步，所述的稳定剂，是先将谷壳粉碎过80～100目筛后，再放入改性液中，水浴加热30℃，熬制成含水量在45～50％的浸膏，在加入木浆纤维，拌匀即可。

Furthermore, the stabilizer is to crush the rice husk through 80-100 mesh sieve, then put it into the modified liquid, heat it in water bath to 30 ℃, boil it into an extract with 45-50% water content, and then add wood pulp fiber and mix well.

进一步，其制备方法是将改性玉米淀粉、硬脂酸锌、山梨酸钾、聚丙烯酸钠、稳定剂按比例混合，加水调制成含水量为9～13％的膏状固体，按需求放入模具当中，热压成型即可。

Furthermore, the preparation method is to mix the modified corn starch, zinc stearate, potassium sorbate, sodium polyacrylate and stabilizer in proportion, add water to prepare a paste solid with a water content of 9-13%, put it into a mold according to the demand, and then hot press it.

进一步，所述的热压成型，温度为120～150℃，压力为0.15～0.2MPa。

Furthermore, the temperature of the hot pressing molding is 120-150 ℃, and the pressure is 0.15-0.2mpa.

综上所述，本发明的有益效果在于：本发明淀粉含量高，极大地降低生产成本，以玉米淀粉为主要原料，利用茶多酚对其进行改性，并辅以多种功能助剂制得发泡餐盒，该发泡餐具受热后不会产生任何有毒成分，并在自然条件下可转化成易被降解的物质，环保，可有效保护环境；

To sum up, the beneficial effects of the invention are as follows: the starch content of the invention is high, the production cost is greatly reduced, the corn starch is used as the main raw material, the tea polyphenols are used to modify it, and a variety of functional additives are supplemented to prepare the foaming lunch box, the foaming tableware will not produce any toxic components after being heated, and can be converted into easily degradable substances under natural conditions, which is safe and environmentally friendly It can effectively protect the environment;

和木浆纤维的韧性，有效的支撑餐具的塑形性，采用茶多酚对玉米淀粉进行改性，利用茶多酚的强烈的抗氧化性，使得制备的餐具具有更长久的保质期，将谷壳浸泡于剩余的改性液中，一是有效回收茶多酚和淀粉溶液，二是利用茶多酚具有的和抗辐射作用，有效地阻止放射性物质，使得制备的餐具更加卫生。

Tea polyphenols were used to modify corn starch, and the strong antioxidation of tea polyphenols made the tableware have a longer shelf life. Soaking rice husk in the remaining modified solution, one is to effectively recover tea polyphenols and starch solution, the other is to use the detoxification and anti radiation effect of tea polyphenols, which has a great value It can effectively prevent radioactive substances and make the prepared tableware more safe and hygienic.

山梨酸钾，有效地抑制霉菌，酵母菌和好氧性细菌的活性，还能防止肉毒杆菌、葡萄球菌、沙门氏菌等有害微生物的生长和繁殖，其抑止发育的作用比作用更强，使得本发明长期存放不产生霉变。

Potassium sorbate can effectively inhibit the activities of molds, yeasts and aerobic bacteria, and can also prevent the growth and reproduction of harmful microorganisms such as botulinum, Staphylococcus, Salmonella, etc., and its growth inhibition effect is stronger than bactericidal effect, so that the invention does not produce mildew after long-term storage.

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