CN102199318A - Crystal bench pad with flower patterns and its preparation method - Google Patents

Abstract

A crystal bench pad with flower patterns provided by the invention mainly comprises the following ingredients of: by weight, 100 parts of polyethylene and/or ethylene copolymer resin, 1-5 parts of AEM5700, 0.5-1.5 parts of boric acid and 2-30 parts of a foaming agent (a concrete substance is required). The invention also discloses a method for preparing the above crystal bench pad with flower patterns. By employing the above materials, the crystal bench pad with flower patterns has advantages of excellent antibiosis and mildewproof performance, high tensile strength, high elongation at break, low water absorption and excellent toughness.

Description

Folder is spent quartzy cushion and preparation method

Technical field

The present invention relates to a kind of cushion, in particular, the present invention relates to a kind of folder and spend quartzy cushion and preparation method, its flexible, flexibility, rub resistance, acid and alkali-resistance belong to family expenses plastics field.

Technical background

At present, known cushion is mainly used in dining table, tea table, bathroom, refrigerator etc. and locates, and with cushion dustproof and protection furniture, main material has polyvinyl chloride, polypropylene, polyethylene etc.Polyvinyl chloride (PVC) RESINS is the thermoplastic superpolymer that is formed by polymerization of vinyl choride monomer.Being to be main raw material with the polyvinyl chloride (PVC) RESINS, adding an amount of antiaging agent, change agent etc., form through technologies such as mixing, calendering, vacuum formings. polyvinyl chloride belongs to amorphous polymer, contains microcrystal fusing point 175 degree of degree of crystallinity 5%-10%.Physical energies such as the molecular weight of polyvinyl chloride, degree of crystallinity, softening temperature become with the polymeric reaction condition temperature.With the polyvinyl chloride (PVC) RESINS is base-material, with stablizer, softening agent, filler, tinting material and change multiple auxiliary agent such as agent and mix through plasticizing, forming process and form the polyvinyl chloride (PVC) RESINS plastics, extensively applied in production and the life, but interior additives of polyvinyl chloride and softening agent may ooze out.Because it constitutes harm for human body, countries such as Europe, Japan and Korea S are numerous and confused to being that the product of raw material is limited with the polyvinyl chloride. polyvinyl chloride is thermally-stabilised relatively poor with shock resistance, is easy to generate crisp in the use.General polyvinyl chloride contains two 2-ethylhexyl adipic acid ester (DEHA) softening agent that do not allowed use by relevant national standard, and DEHA surpasses 100 degrees centigrade and discharges easily when high temperature, and harm is healthy behind the contact human body.Because polyvinyl chloride is a kind of duroplasts, it be become soft, must add a large amount of softening agent, softening agent discharges under the environment of heating easily.If that use is DEHA, it can disturb human endocrine.

Summary of the invention

Problems such as the present invention is easily crisp in the current techniques in order to solve, work-ing life short, and is poisonous provide a kind of folder based on ethylene-vinyl acetate copolymer to spend quartzy cushion.

Another object of the present invention provides the preparation method that above-mentioned folder is spent quartzy cushion.

Folder of the present invention is spent quartzy cushion, and its following weight that mainly comprises is formed: 100 parts of polyethylene and/or ethylene copolymer resins, AEM5700 (Chinese is described) 1-5 part, boric acid 0.5-1.5 part), whipping agent 2-30 part (requiring concrete material).

Above-mentioned folder spends the preparation method of quartzy cushion to be: with the batch mixing of polyethylene, ethylene-vinyl acetate copolymer resin, the anti-bacteria additive of AEM5700 anti-mildew, by the screw extrusion press melt blending, put into the boric acid heating afterwards again and make the batch mixing generation crosslinked, concrete steps are:

A is a raw material with multipolymer and 140 parts of polyethylene of 60 parts ethene-vinyl acetate, mixes after the screw extrusion press melt blending adopts curtain coating to obtain the surface through the thick printing element of corona treatment 0.28mm in conjunction with auxiliary calendering production technique;

B obtains the thick printing surface of 0.28mm with printing element through six look intaglio plate field printings;

C is a raw material with multipolymer and 120 parts of polyethylene of 80 parts ethene-vinyl acetate, mixes after the screw extrusion press melt blending draws ground;

D will adopt the calendering production technique to fit through the ground of printing surface after the b step process and c step, make the thick folder of 1mm and spend crystal.

The present invention has adopted has good antibacterial and mouldproof performance and very high tensile strength and elongation at break behind the above-mentioned materials, water-absorbent is very little and have excellent toughness, thereby porous plastics can be easy to thermoplastic shaping and become simple or complicated shape by various common complete processings.These plastics also can glue together with itself or with other material.Ethene-vinyl acetate is than polyethylene, polyacrylic improved performance, mainly be aspects such as elasticity, flexibility, glossiness, ventilation property, in addition, its environmental stress crack resistance is improved, the capacitive that is subjected to filler increases, and can adopt the method that adds more reinforcing filler to avoid or reduces the ethene-vinyl acetate mechanical property than polyethylene, polyacrylic decline.Beneficial effect is: used the multipolymer of ethene-vinyl acetate and polyethylene to be raw material, do not added other any additives, printing surface is clipped in the middle of the two-layer base material, fundamentally changed the safety factors that printing brings.The present invention is that main raw material draws cushion with polyethylene, polypropylene, has more elasticity, flexibility, glossiness, nontoxic, tasteless environmental protection; Environmental stress crack resistance of the present invention is improved, no any variation in subzero 40 degrees centigrade environment; Thermotolerance is 100 degrees centigrade of mensuration by GB/T 4893.3 prescriptive procedure temperature, does not have any impression; Acid-and base-resisting is stipulated by GB/T4893.1: acid resistance test liquid is 30% acetate, and the time is 10min; Alkaline resistance test liquid is 10% yellow soda ash, and the time is 10min, does not have any bubbling, and is wrinkling; The present invention produces the tailing that is produced, all can recycling.

Embodiment

The invention will be further described below by embodiment, therefore do not limit the present invention among the described example ranges.Embodiment gained material is pressed GB/T 4893.3 prescriptive procedures test thermotolerance; Press GB/T4893.1 prescriptive procedure test acid-basicity; Material is placed on placement 10min test cold tolerance in the subzero 40 degrees centigrade environment.

Embodiment

The multipolymer of 140 kilograms of LD607 polyethylene and 60 kilograms of ethene-vinyl acetates is drawn the thick printing lining of 0.28mm through the screw extrusion press melt blending, with the thick printing lining of 0.28mm behind six look intaglio plate field printings, fit through the base material that the screw extrusion press melt blending draws with the multipolymer of 120 kg C150Y polyethylene and 80 kilograms of ethene-vinyl acetates again, make the thick folder of 1.0mm and spend crystal.Get the thick folder of 1.0mm and spend quartzy regular sample, press GB/T 4893.3 prescriptive procedures test thermotolerance; Press GB/T 4893.1 prescriptive procedures test acid-basicity; Material is placed on placement 10min test cold tolerance in the subzero 40 degrees centigrade environment.

Comparative Examples

The multipolymer of 160 kilograms of new LDPE (film grade)s and 10 kilograms of ethene-vinyl acetates, 30 kilograms of linear low density polyethylenes are drawn the thick base material of 0.26mm through the screw extrusion press melt blending carry out sticker with the thick printing lining of 0.02mm through dry compound machine again, make the thick woven design crystal of 0.28mm.Get the quartzy regular sample of the thick woven design of 0.28mm, press GB/T 4893.3 prescriptive procedures test thermotolerance; Press GB/T 4893.1 prescriptive procedures test acid-basicity; Material is placed on placement 10min test cold tolerance in the subzero 40 degrees centigrade environment.

Table 1 performance data

Embodiment	Thermotolerance	The acid resistance alkali resistance	Winter hardiness
				Embodiment	No test glass impression	There is not any impression	40 degrees below zero does not have any variation
Comparative Examples	Be interrupted slight impression	There are not obvious impression, bubbling, wrinkling	Subzero 15 degree begin distortion

Claims (2)

1. folder is spent quartzy cushion, it is characterized in that it mainly comprises following weight composition: 100 parts of polyethylene and/or ethylene copolymer resins, AEM5700 (Chinese is described) 1-5 part, boric acid 0.5-1.5 part, whipping agent 2-30 part (requiring concrete material).

2. the described folder of claim 1 is spent the preparation method of quartzy cushion, it is characterized in that the just batch mixing of polyethylene, ethylene-vinyl acetate copolymer resin, the anti-bacteria additive of AEM5700 anti-mildew, by the screw extrusion press melt blending, put into the boric acid heating afterwards again and make the batch mixing generation crosslinked, concrete steps are:

A is a raw material with multipolymer and 140 parts of polyethylene of 60 parts ethene-vinyl acetate, mixes after the screw extrusion press melt blending adopts curtain coating to obtain the surface through the thick printing element of corona treatment 0.28mm in conjunction with auxiliary calendering production technique;

B obtains the thick printing surface of 0.28mm with printing element through six look intaglio plate field printings;

C is a raw material with multipolymer and 120 parts of polyethylene of 80 parts ethene-vinyl acetate, mixes after the screw extrusion press melt blending draws ground;

D will adopt the calendering production technique to fit through the ground of printing surface after the b step process and c step, make the thick folder of 1mm and spend crystal.