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A kind of PVC plastic and preparation method thereof

A technology of plastics and raw materials to achieve the effects of improving mixing uniformity, good lubrication effect, and good long-term thermal stability

Active Publication Date: 2022-06-14
温州市隆昌塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Due to the poor stability of PVC to light and heat, it will decompose and produce hydrogen chloride when it is above 100°C or exposed to sunlight for a long time, which will further autocatalyze and decompose, causing discoloration changes, and the physical and mechanical properties also decline rapidly, resulting in a short service life outdoors, which needs to be improved

Method used

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  • A kind of PVC plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Among them, the lubricant uses SG-70s, plasticizers are triglycelets, and antioxidants use double [3- (3, 5-two-uncle-4 hydroxyl) phenyl) propionate.

[0045] like figure 1 The preparation method of the PVC plastic includes the following steps:

[0046] S1, the configuration of raw materials: PVC, lubricant, plasticizer, antioxidant, 4-methoxybhenyl, calcium calcium, solid fatty acid zinc, epoxy soybean oil, magnesium aluminum water talcum powder according to the formulaObject for quantity and mix well;

[0047] S2, mixed raw materials: The raw materials that are mixed uniformly are mixed with dual rollers in 165 ° C for 20 minutes to get the mother material;

[0048] S3, the squeeze of the mother material: put the mother material into the extrusion machine for plasticizing the extrusion;

[0049] S4, the product's pressure extension: The plastic squeezed parent material is put into the plastic pressing machine, and the pressure is extended, cooled, and tailored in order to ...

Embodiment 2

[0052] Among them, the lubricant uses SG-70s, plasticizers are triglycelets, and antioxidants use double [3- (3, 5-two-uncle-4 hydroxyl) phenyl) propionate.

[0053] The preparation method of the PVC plastic includes the following steps:

[0054] S1, the configuration of raw materials: PVC, lubricant, plasticizer, antioxidant, 4-methoxybhenyl, calcium calcium, solid fatty acid zinc, epoxy soybean oil, magnesium aluminum water talcum powder according to the formulaObject for quantity and mix well;

[0055] S2, mixed raw materials: The raw materials that are mixed uniformly are mixed with dual rollers for 15 minutes in 170 ° C to get the mother material;

[0056] S3, the squeeze of the mother material: put the mother material into the extrusion machine for plasticizing the extrusion;

[0057] S4, the product's pressure extension: The plastic squeezed parent material is put into the plastic pressing machine, and the pressure is extended, cooled, and tailored in order to obtain the fi...

Embodiment 3

[0060] Among them, the lubricant uses SG-70s, plasticizers are triglycelets, and antioxidants use double [3- (3, 5-two-uncle-4 hydroxyl) phenyl) propionate.

[0061] The preparation method of the PVC plastic includes the following steps:

[0062] S1, the configuration of raw materials: PVC, lubricant, plasticizer, antioxidant, 4-methoxybhenyl, calcium calcium, solid fatty acid zinc, epoxy soybean oil, magnesium aluminum water talcum powder according to the formulaObject for quantity and mix well;

[0063] S2, mixed raw materials: The raw materials that are mixed uniformly are mixed with dual rollers for 15 minutes in 175 ° C to get the mother material;

[0064] S3, the squeeze of the mother material: put the mother material into the extrusion machine for plasticizing the extrusion;

[0065] S4, the product's pressure extension: The plastic squeezed parent material is put into the plastic pressing machine, and the pressure is extended, cooled, and tailored in order to obtain the fi...

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Abstract

The invention discloses a PVC plastic and a preparation method thereof, and relates to the technical field of PVC polymer materials. The raw materials include the following components in parts by weight: 90-100 parts of PVC; 2-3 parts of lubricant; 6-9 parts of plasticizer; 1-2 parts of antioxidant; 2-3 parts of 4-methoxyphenylurea; 2-3 parts of calcium stearate. Calcium stearate has a good lubricating effect and can improve the mixing uniformity of each component to improve product quality. In addition, calcium stearate can also be used as a long-term main heat stabilizer. Although it cannot effectively inhibit the initial degradation and discoloration of PVC, it has good long-term heat stability. 4‑Methoxyphenylurea plays a thermal stabilizing effect through its carbonyl C atom acting as an electrophilic atom to react with PVC. It has a thermal stability similar to that of zinc stearate and belongs to the primary thermal stabilizer. There is an obvious synergistic effect when used in combination with calcium stearate, and the optimal combination ratio of 4-methoxyphenylurea and calcium stearate is 1:1.

Description

Technical field [0001] The invention involves the technical field of PVC polymer materials. More specifically, it involves a PVC plastic and its preparation method. Background technique [0002] Polyvinyl chloride English is referred to as PVC in English, which is a thermoplastic resin converged by polymerizing agent under the action of a trigger agent.PVC is a white powder with a fixed structure, which has a small degree of support and is widely used in major industrial fields. [0003] The publishing number of CN106188963A has released a PVC sheet and its preparation process. The PVC sheet includes the following weight components: 75-95 PVC resin, 2-4 cubes, 5-9 enhancement enhancementAgent, 1-3 stabilizer, 1-3 parts of processing auxiliary, 0.5-1.5 parts of lubricants, 0.2-0.8 compatriots; skid agents are silicon dioxide; phase solvents are methyl chylide propyl oxyl oxygenyl basesMixture of tritenoloxyxilane and orthodoxyate; the processing auxiliary is methyl acrocide resin....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L91/00C08K5/11C08K5/134C08K5/098C08K3/26C08K5/21C08K13/02
CPCC08L27/06C08K2201/014C08L2201/08C08L91/00C08K5/11C08K5/1345C08K5/098C08K3/26C08K5/21C08K13/02
Inventor 林骏张建胜
Owner 温州市隆昌塑料有限公司
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