Preparation process of environment-friendly plastic particles filled and modified by using starch

A plastic particle and preparation technology, applied in the field of plastic particle processing, can solve the problems of reducing the uniformity of mixing, increasing the difficulty of mixing starch particles and thermoplastic matrix resin, and affecting the quality of plastic particle modification, so as to improve uniformity and improve packaging effect, the effect of improving filling efficiency

Inactive Publication Date: 2021-06-25
南通瑞诚高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of filling and modifying plastic particles, due to the characteristics of edible starch, it will dissolve and gelatinize when it encounters water at high temperature, causing the starch particles to swell, increasing the mixing difficulty of starch particles and thermoplastic matrix resin, and reducing the mixing efficiency. Uniformity, which affects the quality of modification of plastic particles

Method used

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  • Preparation process of environment-friendly plastic particles filled and modified by using starch
  • Preparation process of environment-friendly plastic particles filled and modified by using starch
  • Preparation process of environment-friendly plastic particles filled and modified by using starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] see Figure 1-10 , a preparation process of environmentally friendly plastic particles filled with starch, comprising the steps of:

[0055] S1. Mixing and rounding: the starch is pretreated by mixing equipment, so that the starch is fully wrapped in the thermoplastic matrix resin and made into spherical fillers;

[0056] S2. Heat melting: add thermoplastic matrix resin into the heat melting equipment, and heat melt the thermoplastic matrix resin in advance;

[0057] S3. Auxiliary dispersant: After the thermoplastic matrix resin is melted, add an auxiliary dispersant for mixing;

[0058] S4. Filling: After mixing the auxiliary dispersant for a period of time, add spherical fillers, so that the spherical fillers are fully wrapped by the spherical fillers, and poorly decomposed, so that the starch particles are filled into the thermoplastic matrix resin;

[0059] S5. Flow aid: After mixing the hot-melt thermoplastic matrix resin and the spherical filler, add a flow aid ...

Embodiment 2

[0062] see Figure 1-10 , where the same or corresponding components as those in Embodiment 1 use the corresponding reference numerals as in Embodiment 1, and for the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this embodiment 2 and embodiment 1 is: please refer to figure 2 , the steps of mixed circle making are:

[0063] S1. Take a certain proportion of thermoplastic matrix resin and starch to dry;

[0064] S2. Add the dried thermoplastic matrix resin and starch into the mixing equipment, and stir and mix;

[0065] S3. According to the ratio of thermoplastic matrix resin and starch, gelatin is arranged in the mixing equipment;

[0066] S4. When the mixture of thermoplastic matrix resin and starch is pelletized by the mixing equipment, the gelatin is wrapped on the surface of the spherical object to obtain a spherical filler. By using gelatin to wrap dry starch and thermoplastic matrix resin powder into balls,...

Embodiment 3

[0069] see Figure 1-10 , where the same or corresponding components as those in Embodiment 1 use the corresponding reference numerals as in Embodiment 1, and for the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this embodiment 3 and embodiment 1 is: please refer to image 3 , the mixing equipment includes an organism 1, the body 1 is divided into a mixing chamber 101 and a ball making chamber 102, the mixing chamber 101 is located on the upper side of the ball making chamber 102, a pair of mixing assemblies 3 are connected in the mixing chamber 101, and a pair of ball making assemblies are connected in the ball making chamber 102 4. Multiple gelatin components 6 are connected to the ball making component 4, please refer to Figure 4-6 The ball making assembly 4 includes a ball making rotating rod 401, the ball making rotating rod 401 is rotatably connected in the ball making chamber 102, the outer end of the ball ...

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Abstract

The invention discloses a preparation process of environment-friendly plastic particles filled and modified with starch, and belongs to the field of plastic particle processing. The preparation process of the environment-friendly plastic particles filled and modified with the starch comprises the following steps that mixing and rounding are conducted, specifically, the starch is pretreated through mixing equipment so that the starch can be fully wrapped with thermoplastic matrix resin, and spherical fillers can be prepared; hot melting is conducted, specifically, the thermoplastic matrix resin is added into hot melting equipment, and hot melting is conducted on the thermoplastic matrix resin in advance; a dispersing aid is added; filling is conducted; a flowing aid is added; and pelleting and screening are carried out, specifically, the starch can be processed in advance, so that when the starch is mixed with the thermoplastic matrix resin, filling with the thermoplastic matrix resin subjected to hot melting can be effectively carried out, the expansion probability of starch particles is effectively reduced, the mixing difficulty of the starch particles and the thermoplastic matrix resin is reduced, the mixing uniformity is improved, and the modification quality of the plastic particles is effectively improved.

Description

technical field [0001] The invention relates to the field of plastic particle processing, and more specifically relates to a preparation process of environmentally friendly plastic particles modified by starch filling. Background technique [0002] Plastic particles generally refer to plastic particles, and plastic particles refer to granular plastics, which are generally divided into more than 200 types and can be subdivided into thousands of types. Common plastic particles include general-purpose plastics, engineering plastics and special plastics. General plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc. Engineering plastics: nylon, polytetrafluoroethylene, polyoxymethylene, polycarbon silicone, etc. Special plastics: thermosetting plastics, functional polymer plastics, such as artificial kidneys. [0003] With the wide application of plastics in various fields, people have further requirements and improvements on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/12B29B9/10C08L101/00C08L3/02C08L89/00B29K101/12
CPCB29B9/12B29B9/10C08L101/00B29B2009/125B29K2101/12C08L3/02C08L89/00
Inventor 王奕刘金龙谭磊
Owner 南通瑞诚高分子材料有限公司
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