A kind of preparation technology of polyphenylene sulfide grinding disc for papermaking

A technology of polyphenylene sulfide and preparation process, which is applied in the field of material engineering, can solve the problems of insignificant improvement of pulp physical properties, reduce the service life of engineering plastic grinding discs, and cannot solve the thermal stability of materials, so as to achieve the effect of fiber separation Large, saving power consumption, low cost effect

CN103600476BInactive Publication Date: 2016-01-27四川华通特种工程塑料研究中心有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-01-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation process of a paper-making polyphenylene sulfide millstone. The polyphenylene sulfide millstone is prepared from a polyphenylene sulfide composite material comprising the following raw materials: polyphenylene sulfide resin, a toughening component, reinforcing fibers, a wear-resistant component and a non-fibrous auxiliary agent. The preparation process comprises the steps of 1, pretreatment of materials; 2, preparation and mixing of the materials; 3, preheating and drying; 4, plasticization; 5, injection molding; 6, pressure maintaining; 7, cooling; 8, demolding and after-treatment. The preparation process is simple in flow and easy in processing and molding and has the advantages of low cost and low energy consumption, and the polyphenylene sulfide millstone prepared by the preparation process disclosed by the invention is small in noise, wide in corrosive medium, long in service life and capable of effectively increasing the speed of a paper machine, so that the paper-making output is increased.
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Description

technical field

[0001] The invention belongs to the field of material engineering, and in particular relates to a preparation process of a polyphenylene sulfide grinding disc for papermaking. Background technique

[0002] As we all know, in the papermaking pulping system, the beating link is the most important. The most important machine in papermaking machinery is the refiner, which produces pulp, which is the foundation of the entire papermaking industry, and the performance of the grinding disc in the refiner determines the key factors of the operation status, production efficiency, enterprise profit and product quality of the entire papermaking production line. . The grinding disc of the refiner is composed of a set of movable grinding disc and fixed grinding disc (or a complete set of rotor and stator). The pulp fibers are cut and opened, so that the fibers are distributed in a multi-pronged broom, so as to obtain good paper strength. When the grinding disc is workin...

Examples

Embodiment 1

[0021] Example 1: A preparation process of polyphenylene sulfide grinding discs for papermaking, the polyphenylene sulfide grinding discs are made of polyphenylene sulfide composite materials, and the polyphenylene sulfide composite materials include the following raw materials: polyphenylene sulfide Resin, toughening component, reinforcing fiber, wear-resistant component, the preparation process includes the following steps:

[0022] S1. Pretreatment of materials: surface modification of toughening components, reinforcing fibers, and wear-resistant components; toughening components are one or more of polyamide resins, polyester resins, and polyacrylic resins; reinforced The fiber is one or more of glass fiber, carbon fiber, and aramid fiber; the wear-resistant component is one or more of polytetrafluoroethylene, graphite, and molybdenum disulfide;

[0023] S2. Ingredients and mixing: Weigh each raw material according to the formula ratio, and fully mix the prepared raw materi...

Embodiment 2

[0030] Example 2: A preparation process of polyphenylene sulfide grinding discs for papermaking, the polyphenylene sulfide grinding discs are made of polyphenylene sulfide composite materials, and the polyphenylene sulfide composite materials include the following raw materials: polyphenylene sulfide Resin, toughening component, reinforcing fiber, wear-resistant component, the preparation process includes the following steps:

[0031] S1. Pretreatment of materials: surface modification of toughening components, reinforcing fibers, and wear-resistant components; toughening components are one or more of polyamide resins, polyester resins, and polyacrylic resins; reinforced The fiber is one or more of glass fiber, carbon fiber, and aramid fiber; the wear-resistant component is one or more of polytetrafluoroethylene, graphite, and molybdenum disulfide;

[0032] S2. Batching and mixing: Weigh each raw material according to the formula ratio, and fully mix the prepared raw materials...

Embodiment 3

[0039] Example 3: A preparation process of polyphenylene sulfide grinding discs for papermaking. The polyphenylene sulfide grinding discs are made of polyphenylene sulfide composite materials, and the polyphenylene sulfide composite materials include the following raw materials: polyphenylene sulfide Resin, toughening component, reinforcing fiber, wear-resistant component, the preparation process includes the following steps:

[0040] S1. Pretreatment of materials: surface modification of toughening components, reinforcing fibers, and wear-resistant components; toughening components are one or more of polyamide resins, polyester resins, and polyacrylic resins; reinforced The fiber is one or more of glass fiber, carbon fiber, and aramid fiber; the wear-resistant component is one or more of polytetrafluoroethylene, graphite, and molybdenum disulfide;

[0041] S2. Ingredients and mixing: Weigh each raw material according to the formula ratio, and fully mix the prepared raw materi...